The invention relates to a method for producing implants and components by direct shaping. The method includes the steps of producing a mold for the implants or components to be produced, making allowances for changes in geometry occurring during after-treatment after the implants or components are removed from the mold, and, providing partial areas of the mold with a structured surface for transferring this structure to the surfaces of the implants or components. In the method, raw material is introduced into the mold and, after remaining in the mold for a certain period of time, the hardened raw material is then removed from the mold to allow the implants or components to take on the structured surface of the mold as well as its geometry. The demolded implants or components are finally subjected to any after-treatment that may be necessary.

An injection-molding method for selectively manufacturing molded parts with and without a breakthrough is disclosed. A molded part with a breakthrough is manufactured by positioning a mold core in a mold cavity, whereas a molded part without breakthrough is manufactured by removing the mold core at least partly from the mold cavity. The mold cavity delimited by a nozzle-side mold platen and an ejector-side mold platen. The mold core is movable relative to at least one of the mold platens, in particularly the nozzle-side mold platen, in an advance direction, where the mold core is closer to the nozzle-side mold platen and an opposite withdrawal direction. At least one protective measure is provided for protecting the inner surface facing the mold cavity of the respective mold platen, in particularly the nozzle-side mold platen, from adverse mechanical effects during movement of the mold core in the advance direction.

The present invention provides a method of making a flexible foaming member from recycled material. The present invention relates to a production method to recycling wastes containing rubber, plastic and metal materials and pulverize them into scraps under normal temperatures, then roughly separate the various materials contained in the waste scraps into different layers based on the difference of specific gravity, and further take out the scraps of rubber and plastic materials with lower specific gravity from the waste scraps, then conduct multiple heating and pulverizations under different temperatures to produce composite-material scraps, and then using some composite-material scraps to mix flexible materials and foaming agents, then pressing the mixture into a plate-like foaming material, and conduct vulcanization and foam forming for the plates of foam material to become a elastic foam.

In accordance with this invention a binder composition for treating particulate material to form a solid aggregate matrix is prepared by providing a urea formaldehyde precondensate; a polar solvent; additional urea; an acid or salt thereof, the acid or salt thereof being selected such as to render the pH of the binder composition to a value from 2.0 to 5.3; providing a sugar; providing a binding promoter for enhancing the binding between the binder composition and the particulate material; and mixing the above so as to form a binder composition. The binder composition is mixed with particulate material and allowed to set into a solid aggregate matrix over a period of longer than 30 minutes from being mixed with the said particulate material.

Disclosed herein is a method for preparing a near infrared shielding fiber. The method includes the steps of preparing and compounding a composition, then pelletizing the compounded composition to obtain the near-infrared shielding masterbatch, and melt spinning the near-infrared shielding masterbatch into the near-infrared shielding fiber. The composition includes at least one metallic ionic compound powder in an amount of about 1-25 wt %, a cross-linking agent in an amount of about 0.1-2 wt %, a thermoplastic polymer in an amount of about 67-98.7 wt %, a cross-linking initiator in an amount of about 0.1-1 wt %, and a dispersing agent in an amount of about 0.1-2 wt %.

A method for making an elastomeric apertured web comprises providing a precursor web comprising a laminate which is subjected to incremental stretching to form an elastomeric precursor web. A forming apparatus is provided comprising a first member and a second member, wherein the first member comprises a mating member, and the second member comprises teeth which are joined to the second member. The elastomeric precursor web is moved through the forming apparatus, wherein apertures are formed in the elastomeric precursor web material as the teeth on the second member penetrate the mating member forming an elastomeric apertured web. The elastomeric apertured web exhibits a WVTR of at least about 1000 g/m2/day.

In a method of processing a substrate in accordance with an embodiment, a trench may be formed in the substrate, imprint material may be deposited at least into the trench, the imprint material in the trench may be embossed using a stamp device, and the stamp device may be removed from the trench.

The invention relates to a substrate-based method for forming a three-dimensional object by additive fabrication by coating a liquid radiation curable resin comprising from 30 to 80 wt % of cationically curable compounds on a substrate, contacting the liquid radiation curable resin with a previously cured layer, selectively exposing the layer of liquid radiation curable layer to actinic radiation thereby forming a cured layer, separating the cured layer at the substrate, and repeating the steps a sufficient number of time in order to build up a three-dimensional object.

Provided are fiber fabrication method and the fiber fabricated thereby. In this method, different monomer solutions are electrospun through nozzles whose outlets are stuck to each other and simultaneously interfacially polymerized to form a polymer fiber without a complicated process of preparing a polymer solution. Therefore, a polymer fiber can be simply prepared.

Devices and methods for high-throughput manufacture of concentrically layered nanoscale and microscale fibers by electrospinning are disclosed. The devices include a hollow tube having a lengthwise slit through which a core material can flow, and can be configured to permit introduction of sheath material at multiple sites of Taylor cone formation formation.

The invention relates to a method for producing a plastics material article, said method including the extruding of a tube-shaped parison and the re-forming of the parison into a hollow body within a blow mold by applying differential pressure. The method includes initially a first expanding and partial shaping of the parison with the blow mold not completely closed. Then at least one opening is provided on the circumference of the pre-expanded parison. In a further step at least one part to be built-in is introduced through the opening into the interior of the partially shaped plastics material article. In a final step the blow mold is closed completely and the blow molding of the plastics material article is completed.

An improved polymerization and process method allows the production of special nitrile rubbers which are characterized by a specific anion content and an excellent storage stability and allow a particularly good vulcanization rate and moreover result in vulcanized materials that have advantageous properties, especially with regard to the contact with metal components of molded parts based on said vulcanized materials.

A holding device (1) holds a lens (6) at its lens edge (5) with the aid of an adhesive connection (16, 17). The adhesive connection (16, 17) is applied only at one adhesive point or only at two spaced apart adhesive points (16, 17). Each holding device (1) provided with a lens (6) is positioned on the dip frame in such a manner that the lens (6) is positioned above its holding device (1). A method is provided for finishing lenses (6) wherein the lenses (6) are subjected to various sequential finishing steps of a finishing process and the lenses (6) are cemented to the same holding device during finishing. The application of adhesive is only at one adhesive point or at two spaced apart adhesive points (16, 17).

Disclosed herein is a method for utilizing the exothermic energy generated by a low temperature cure reaction to access a high-temperature cure reaction, which is otherwise energetically inaccessible at a chosen tool temperature, thereby producing a cured resin matrix with properties closely matching to those produced via high-temperature cure reactions but achieved via a short cure time and low cure temperature. Also disclosed is a short-cure resin composition containing: (a) at least one multifunctional epoxy resin having an epoxy functionality of greater than 1; (b) a hardener composition containing (i) at least one aliphatic or cycloaliphatic amine curing agent having one or more amino groups per molecule; (ii) at least one aromatic amine curing agent having one or more amino groups per molecule; and optionally, (iii) an imidazole as curing accelerator. The improved properties of this resin composition include being curable at a temperature of ≦120° C. for a time period of less than 10 minutes to achieve a degree of cure higher than that derived from the same composition with just (i) aliphatic/cycloaliphatic amine or (ii) aromatic amine in isolation.

Method of manufacturing a fibre-reinforced composite moulding, the method comprising the steps of: (a) disposing at least one layer of fibrous reinforcing material within a mould; (b) disposing at least one pre-preg layer adiacent to the fibrous reinforcing material, the pre-preg layer comprising fibrous reinforcement at least partially impregnated with uncured first resin material, to form a laminar assembly of the at least one layer of fibrous reinforcing material and the at least one pre-preg layer within the mould; (c) applying a vacuum to the assembly; (d) infusing a flowable uncured second resin material, under the vacuum, into the at least one layer of fibrous reinforcing material; and (e) curing the first and second resin materials at least partially simultaneously to form the fibre-reinforced composite moulding which comprises at least one first structural portion formed from the fibrous reinforcement and the cured first resin material bonded to at least one second structural portion formed from the at least one layer of fibrous reinforcing material and the cured second resin material.

A method serves to produce a three-dimensional object by additive construction in direct construction sequence from solidifiable material, which is either present in the starting state in a fluid phase or can be liquefied, where multiple material components are discharged alternately in a programmable manner by means of multiple discharge units and configure different parts of the object joined to one another as a result of the discharge, where the geometric proportions obtained during discharge already correspond to the object, and because the material components form between them either edge regions merging into one another without boundaries or boundary regions of the different material components abutting one another without joining, a method and an object produced therewith can be provided, in which boundary and edge regions are formed “as if from one piece” between different material components even in the case of complex geometries.

An injection tool for the production of components by an injection-molding method, the injection tool including several cavities for shaping one respective product, an injection nozzle for injecting plastic materials for each cavity, and an actuating device. The injection nozzle has an injection channel which can be closed by a nozzle needle in order to control the injection process. The actuating device is arranged to move the nozzle needle in an axial direction between a first end position and a second end position, with an adjustable stop being provided which defines the first end position.

When a molded fabric body (X) is impregnated with a powder (K) of a predetermined material, there are performed a first step of dispersing the powder (K) in a liquid to prepare a slurry, and a second step of burying the molded fabric body (X) made of fiber bundles in the slurry and vibrating the slurry by use of a predetermined vibrator (M). Furthermore, in the second step, the vibrator (M) is moved along a surface of the molded fabric body (X). As a result, it is possible to improve the rate of impregnation of the powder (K) more than that in the conventional cases, irrespective of the shape of the molded fabric body (X).

A thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density is provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive to form a precursor material in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. The precursor material is thereafter stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”). This creates a network of voids located adjacent to the discrete domains, which as a result of their proximal location, can form a bridge between the boundaries of the voids and act as internal structural “hinges” that help stabilize the network and increase its ability to dissipate energy. The present inventors have also discovered that the voids can be distributed in a substantially homogeneous fashion throughout the composition.

Compositions of thermoplastic polyesters containing dispersed nanoparticles of fibrous clay are made by polymerizing the polyester precursors in the presence of exfoliated fibrous clay that has not been organically modified. The compositions have good physical properties and can be melt molded into various articles. Many of these articles may be coated (painted) and are especially useful for appearance parts such as visible exterior automotive body parts.

An information processing device includes first encoding means for encoding an image by placing strip-shaped areas in the upper and lower sides, second encoding means for encoding data of first subtitles displayed in a third area formed by joining at least a part of one area of a first area and a second area together with the other area, first generating means for generating information referred to form the third area, and second generating means for generating the contents including the video stream, a stream of the first subtitles, and the control information.

In an approach, a method of spotting music for a motion picture comprises: receiving music editor (MXE) cue related data defining a plurality of cues each having a start timecode value and an end timecode value; based on the MXE data, creating and storing an MXE timecode path, a composer (CMP) timecode path, and a cue sheet timecode path; copying one or more of the MXE cue related data to CMP cues in the CMP timecode path in a CMP spotting dataset; receiving one or more changes to the CMP cues without also modifying the MXE cue related data; applying an editing lock to the CMP cues; auto-populating the CMP cues to cue sheet cues in the cue sheet timecode path; receiving one or more changes to the cue sheet cues without also modifying the CMP cues; finalizing and distributing a cue sheet based on the cue sheet cues; wherein the method is performed by one or more special-purpose computing devices.

Arrangements for managing a digital video recorder timer at a plurality of television receivers are presented. A plurality of television receivers may be present. Each television receiver of the plurality of television receivers may be linked with a particular user account. Each television receiver may use separate receiving hardware to receive television programming from a television service provider. A timer management computer system may receive a timer associated with the particular user account. The timer may specify a date, a time, and a television channel to be recorded. Based on the received timer, the timer management computer system may notify each television receiver of the plurality of television receivers of the timer for recording.

A media recording device automatically records selected broadcast programs according to categories specified by the user, without requiring the user to specify in advance which programs are to be recorded. The recorded programs are then presented to the user for selection, and the selected programs may be played back immediately or saved for later playback. Each broadcast program may be allocated a priority, and the device may decide which programs to record or delete according to their relative priority. For each broadcast program, a corresponding visibility period may be specified, during which the program can be selected for playback and is not deleted. There may be a delay between the broadcast of the program and the beginning of its visibility period. An expiry time may be specified for each program, after which the program is deleted. There may be a delay between the end of the visibility period and the expiry time.

A data creation device performing compression encoding on first frame images showing a view from a first viewpoint and second frame images showing a view from a second viewpoint generates a stream in an MPEG-2 format, and base-view/dependent-view video streams in a format conforming to an MPEG-4 MVC format. The stream in the MPEG-2 format is generated by performing compression encoding on the first frame images. The base-view video stream is a stream of dummy data having the same number of frames as and a smaller data amount than the stream in the MPEG-2 format. The dependent-view video stream is obtained by performing compression encoding on each frame of the second frame images, with reference to a frame of the stream in the MPEG-2 format to be presented at the same time as a frame of the base-view video stream corresponding to the frame of the second frame images.

Disclosed herein are systems, methods, and computer readable-media for adaptive media playback based on destination. The method for adaptive media playback comprises determining one or more destinations, collecting media content that is relevant to or describes the one or more destinations, assembling the media content into a program, and outputting the program. In various embodiments, media content may be advertising, consumer-generated, based on real-time events, based on a schedule, or assembled to fit within an estimated available time. Media content may be assembled using an adaptation engine that selects a plurality of media segments that fit in the estimated available time, orders the plurality of media segments, alters at least one of the plurality of media segments to fit the estimated available time, if necessary, and creates a playlist of selected media content containing the plurality of media segments.

The present invention relates to a method for selecting an appropriate mode when performing a new broadcast, such as a 3D stereo broadcast, a UHDTV broadcast, and a multi-view broadcast, among others, while maintaining compatibility with existing broadcasting channels in an MPEG-2-TS format for transmitting and receiving digital TV, and to a method for recognizing a descriptor. To this end, the present invention suggests providing the descriptor which is related to synthesizing left and right images using the type of stream, existence of the descriptor, and a frame-compatible mode flag.

A method and apparatus for providing additional information included in a video displayed on a display device using visible light communication (VLC). A data packet including video data and additional information for an object included in the video data is received. The video data is extracted from the data packet, and the video data is decoded. The additional information from the data packet is extracted, and the additional information decoded. The decoded video data is output through the display device, and at the same time, the additional information is transmitted for a particular object included in a video based on a VLC protocol using a light emitting device prepared in the display device. The additional information providing apparatus includes an image sensor module, a display module, a visible light receiving module, an additional information manager and a controller.

When reproducing a binocular 3D video, noises with random parallax are reduced by appropriately controlling the intensity of noise reduction. A reproduction apparatus includes: a noise processing circuit for applying noise processing to a video signal of a video content based on a given control signal; and a control section for receiving an output format identification signal which identifies an output format of the video content, and generating the control signal in accordance with the output format identification signal, the control section generating a control signal which causes the noise processing performed in the noise processing circuit to vary depending on whether an output format of the video content is a two-dimensional video or a three-dimensional video.

An information storage medium storing subtitle text-based information, and a method and apparatus utilizing same, process a subtitle The information storage medium includes: dialog information which contains script text information of the subtitle and information specifying an output type of the script text; and presentation information which contains style information used to convert the script text into a bitmap format through rendering. With this structure, the amount of data required for a subtitle and the amount of data that should be processed when a subtitle is output may be greatly reduced.

Methods and apparatus for switching between a live video decoding and a recorded playback in a digital video and recording system. A received video data stream is transmitted to a first-in first-out video decoder buffer without first looping the video data stream through a playback buffer. The video data stream is transmitted from the video decoder buffer to a video decoder. If a “pause” command is received, the video data stream is transmitted to a first-in first-out playback buffer, while continuing to transmit the video data stream to the video decoder buffer. Transmission of the video data stream to the video decoder buffer is halted when the video decoder buffer fills up. The last byte of the video data stream that was transmitted to the video decoder buffer is marked. If a “play” command is received, the video data stored in the video decoder buffer is transmitted to the video decoder. The video data stored in the playback buffer is transmitted to the video decoder buffer starting at a point immediately after the data element that was marked previously.

In an embodiment, the playing of an advertisement may be detected by identifying the persons associated with the faces in the advertisement portion of the media content and determining that the identified persons are not actors listed for the media content. In an embodiment, the advertisement may be enhanced with additional content pertaining to the product or service being advertised. In an embodiment, the advertisement may be automatically fast-forwarded, muted, or replaced with an alternate advertisement. In an embodiment, only a non-advertisement portion of the media content may be recorded by skipping over the detected advertisement portion of the media content.

Recording reconstruction from multiple overlapping recordings may be provided. New recorders may copy manifests from working recorders, as opposed to reconstructing from failed recorders, to construct manifests that refer to video fragments from different recorders. Origin servers may follow these reconstructed manifests to obtain any fragment in the recording, in any combination of recorder failure/take-over/restart, as long as there was at least one recorder functioning at all times.

Methods and apparatuses for presenting targeted advertisements to DVR users are described. After a DVR has finished playing a recorded television program, or in response to other specified events, the DVR presents a screen which comprises a “save or delete” menu. In addition to the “save” and “delete” options, the menu additionally comprises one or more other options. Each of these other options may correspond to a separate promotional item. For example, a user's selection of such an option may cause the DVR to display or play an advertisement on the user's television set. Additionally or alternatively, these other options, when selected by a user, may cause the DVR to display a user interface through which the user can actually purchase a product or service. The product or service advertised or offered may be one that was featured or referenced in the television program that the user was just watching.

A system that enables an event or moments within an event to be captured and provided in a record that preserves at least some aspects of the participant's perspective of the event. In particular, the present invention involves centralized recording of the event in one or more modes including video, audio, and still image recordings and a system that enables a participant (i.e., one who perceives the event) to select portions of the event recording substantially contemporaneously with the event occurrence. A personalized record is made by duplicating the selected portions from the event record. In a particular example, the personalized record is recorded on a digital media such as a compact disc (CD) or digital video disk (DVD) or the like.

A system, method and computer-readable medium are presented for providing real-time content-based navigation of live video programming. The video programming is received and a searchable database is generated. The method aspect of the invention comprises receiving a live video program, generating an index to the received live video program by extracting images and/or text from the video program, recording the live video program, presenting at least a portion of data associated with the generated index to a user, receiving user input regarding a search to a portion of the recorded video program to which the user desires to navigate and playing back the recorded video program starting at the searched portion identified by the user input. The search may be of an image and/or text portion of the presentation.

A process control system user display provides a display image containing control system information. The system may include a digital recording module including an image capture module for making a real-time digital recording of at least a portion of the display image, the image capture module buffering a terminal portion of the real-time digital recording. A storage module may store at least a portion of the real-time digital recording. A real-time digital recording may contain at least a portion of the display image, wherein, at any particular time, the real-time digital recording includes information from the control system for a predetermined duration proximate the particular time, and at least a portion of the real-time digital recording may be stored. A desired portion of the digital recording may be played back, optionally with process control system event and/or continuous history.

A core drilling machine having an axial extending hollow drill shaft supported rotatably in a housing and rotated by means of a drive unit; a coaxial tool holder receiving an axially displaceable drill bit, the tool holder having a locking mechanism securing the drill bit in a rotationally fixed manner to the hollow drill shaft; wherein the hollow drill shaft is suitable for receiving a shaft of an interchangeable centre drill, the center drill axially supported against a first spring element; and an axial stop element preventing in a first position a complete displacement of the center drill into the interior of the hollow drill shaft and allows in a second position a complete displacement of the center drill into the interior of the hollow drill shaft; and an activation device for activating the first or second positions of the stop element.

A targeting jig apparatus for targeting interlocking holes of an intramedullary nail. The targeting jig includes a support-arm extending substantially parallel to the intramedullary nail. A targeting mechanism including a pair of targeting mechanism drill-guide orifices is adjustably disposed on the support arm for aligning the targeting mechanism drill-guide orifice with the interlocking holes of the intramedullary nail. The targeting mechanism includes a saddle having a U-shape including a base and parallel legs that are slidable along the support-arm. A connection mechanism includes a horizontal slot on the support-arm aligned with a vertical slot on the targeting mechanism and a pivot screw extending through the slots for facilitating adjustment of the targeting mechanism relative to the support arm.

The present invention relates to a bit for processing the inside diameter of a work material, the bit having on the outer surface of a shank a vibration preventing structure comprising a vibration absorption body made of a silicone material, and a hollow wire rod, thereby absorbing the vibration generated from a machine tool, preventing resonance generated between the work material and a tool, and thus, enabling the implementation of a slickenside from ultra-precision machining.

A cutting bit adapted to cut wood or metal is disclosed. The cutting bit is prepared by a process which includes the step of performing a forming operation on a metal blank so as to create a formed metal part that includes (i) a shaft having a polygonal shaped drive surface and defining an axis, (ii) a body having a proximal end and a distal end, the proximal end of the body being attached to the shaft, the body further having a first shoulder and a second shoulder at the distal end thereof, the first shoulder defining a first cutting edge segment, and the second shoulder defining a second cutting edge segment, the axis extending between the first cutting edge segment and the second cutting edge segment, (iii) a central cutting member extending from the body so that the central cutting member is aligned with the axis, (iv) a first cutting spur extending from the distal end of the body, the first cutting edge segment being interposed between the first cutting spur and the axis, and (v) a second cutting spur extending from the distal end of the body, the second cutting edge segment being interposed between the second cutting spur and the axis. The process of preparing the cutting bit further includes the step of performing a carburization operation on the formed metal part after the first step so as to create the cutting bit. The cutting bit is particularly useful in performing a drilling operation on a metal construction wall stud to form a hole therein.

A cutting tool holder has a holder body and upper and base jaws. An insert receiving pocket is defined between the upper and base jaw, for receiving a cutting insert therein. A resilience recess allows the upper jaw to deflect toward the base jaw. An upper jaw coolant channel has an upper jaw inlet, opening out to the resilience recess, and an upper jaw outlet, opening out to a front end of the upper jaw. A holder body coolant channel has a holder body outlet, opening out to the resilience recess, spaced apart from the upper jaw inlet. A compressible tool coolant plug, made of compressible material, is inserted into the resilience recess. The plug has a plug coolant channel opening out toward the upper jaw inlet and the holder body outlet, forming a fluid path from the holder body coolant channel to the upper jaw coolant channel.

A tool cartridge for a material removal tool has a cartridge body with, among other things, a recess extending through at least a portion of the cartridge body from a first side toward a second side, a long axis of the recess non-parallel to a long axis of the cartridge body and at least a portion of the recess open to a bottom side of the cartridge body, and a threaded opening for a differential screw proximate a second end of the tool body and positioned longitudinally between an opening for a clamping screw and at least a portion of a seat for a cutting tool insert. A thread axis of the threaded opening is at an angle G relative to a long axis of the tool cartridge. A material removal tool, a tool, and a method of adjusting a cutting tool insert are also disclosed.

A rotary-driven tool for cutting machining, in particular a drilling tool with a cutting body and a holder with a shaft piece is disclosed, with at least a cutter and a dovetail-shaped region on the cutting body and a matching dovetail recess on the holder. The cutting body can only be inserted in the holder laterally to a longitudinal axis of the holder. In order to fix the cutting body, opposing flank sections of the dovetail recess, between which the dovetail-shaped region fits can be moved over each other by means of a screw connection in the holder and on fixing the cutting body said body is subjected to a force on the axial direction by the screw connection. In one aspect, the cutting body is a cutting head and the axial force is exclusively generated by the dovetail-shaped region in cooperation with the dovetail recess in the holder.

A cutting tool has at least one cutting tool support pad. The cutting tool support pad includes two opposing primary surfaces, each primary surface includes an abutment surface and at least one convex contact surface. For each primary surface, the at least one contact surface extends outwardly further than the abutment surface.

A cutting head has a resilient male coupling member. The cutting head has a central resilience slit that extends between two major surfaces and opens out to the male coupling member and at least one lateral resilience slit that extends between the two major surfaces and opens out to a base surface. The central resilience slit and the at least one lateral resilience slit each have forwardmost points, located forward of the base surface. Also, a cutting tool that has a tool holder with the cutting head secured thereto. The tool holder has an insert pocket that includes a forward facing holder base abutment surface that has a female coupling member. In a locked position, the male coupling member is resiliently retained in the female coupling member. All points on the male coupling member are under deflection.

A cutting tool has a tool shank and a replaceable cutting head resiliently secured to the tool shank by an interference fit between a male fixation member of the cutting head and a female fixation member of the tool shank. The male fixation member has a resilience slit. In each cross section of the cutting tool taken perpendicular to an axis of rotation of the cutting tool through mutual abutment regions, the cross sectional profiles of the mutual abutment regions are arcuate sectors.

An adjustable drill is provided comprising a drill body having at least one face surface with a plurality of serrations provided therewith. The drill further has at least one cartridge having a cooperating plurality of second serrations, to be driven with the drill body when assembled therewith. The at least one cartridge includes at least one insert pocket, and at least one insert is releasably affixed in the insert pocket provided in the cartridge. In further examples, the adjustable drill may have a central cutting system in combination with the adjustable cartridge type system, wherein the central cutting system may be modular. There may also be provided a modular type of holder arrangement to provide flexibility to adapt the system for various applications.

A multiple tool device, particularly adapted to prepare tubular elements to be welded by electrofusion, comprising a cup member which is associable with the end portion of a tubular element and is provided with motion transmission means adapted to turn the multiple tool device. The particularity of the present invention resides in that it comprises scraper means adapted to remove the outer surface layer of the end portion and facing means which have a working motion that is opposite with respect to the preceding means and are adapted to face the edge of the end portion so as to make it perpendicular to the axis of the tubular element.

The present invention relates to a hole-saw assembly includes a hole-saw having at one end a plurality of cutting teeth and with a boss attached to the hole-saw at the other end two shafts. The assembly includes a mandrel coaxially aligned with said hole-saw and including a body having two bores there through coaxially aligned with said shafts. An annulus located on top of the body is coaxially aligned with said mandrel and hole saw and includes two holes, the annulus rotatable around its longitudinal axis from a first to a second position. In the first position the annulus holes are aligned with the bores and shafts allowing the shafts to be freely insertable and removable and in the second position the holes are misaligned to lock the shafts to the annulus. The mandrel further includes a pair of driving pins adapted to engage driving apertures found in hole-saws especially larger ones. Typically the driving pins may be biased to enable the assembly to be used even with those hole-saws that do not include driving apertures and that also enables easier assembly of the device. A compressible O-ring may further facilitate the operation of the assembly. This device avoids the problem of thread stripping. The invention further provides for a boss that can be used with larger hole-saws and includes notches that accommodate driving pains extending on the side of the boss and where appropriate into the driving apertures.