There is provided a nut having a thread portion having a female thread, a metallic plate portion having a base segment, and a hardness gradient portion provided between the thread portion and the metallic plate portion. The thread portion, metallic plate portion and the hardness gradient portion are monolithic each other, a metallographic structure of the metallic plate portion differs from a metallographic structure of the thread portion and a hardness of the hardness gradient portion is lower than a hardness of the thread portion and lowers from the thread portion toward the metallic plate portion.

A thread forming tap having a complete thread portion, formed with a predetermined back taper with that decreases rotational torque during tapping work, which reduces load acting on first complete protruding portions, formed at an extreme leading end of the complete thread portion, and thereby suppressing degradation in service life of the tool due to wear.

A rolling machine comprises parallel guides delimiting a workpiece conveying channel extending from a plurality of per se known rolling tools to a machined workpiece unloading arrangement, wherein, upstream of the workpiece unloading arrangement, one of the channel delimiting guides is operatively coupled to a structural element swingably supported by a pivot pin, the structural element being integral with the piston rod of a cylinder-piston unit slidably driving the structural element together with the channel delimiting guide, thereby providing a side unloading opening for the workpiece.

Techniques for reinforcing concrete using rebar are disclosed. Some example embodiments may include prestressed concrete structures reinforced by twisted, threaded reinforcing bars. An example reinforcing bar for a prestressed concrete structure may include an elongated, generally cylindrical rod; an external thread disposed on the generally cylindrical rod, the external thread formed from an elongated, generally nonlinear channel wrapped about a radial surface of the generally cylindrical rod in a generally helical fashion. A base portion of the nonlinear channel may be disposed substantially against the radial surface of the generally cylindrical rod and/or an upstanding portion of the nonlinear channel may extend generally orthogonally from the radial surface of the generally cylindrical rod.

A method for manufacturing a thread-forming screw having a shank and a thread formed in one piece with the shank and region-wise circumferentially arranged on the shank, is disclosed. After the formation of the thread on the shank, a plurality of recesses is subsequently stamped into the thread. Then, a plurality of compact cutting elements is welded into the recesses in the thread, where the cutting elements are made of a hard material and have a hardness greater than the hardness of the thread. Additionally, a stamping device for carrying out the method is also disclosed.

In various embodiments, a tapered thread roll, a set of tapered thread rolls, a thread rolling tool, and a thread rolling method are provided for rolling angled or tapered threads onto a workpiece to create a threaded workpiece. In at least one embodiment, the threaded workpiece may comprise a polished rod or a polished rod precursor as specified by the American Petroleum Institute for use in an oil-field sucker-type pump, for example.

A threading cutting insert achieves high shape accuracy of a screw to be processed, and saves on manufacturing cost. Therefore in the threading cutting insert, a plurality of tooth-shaped cutting edges are formed in a cross ridge line portion between a rake face and flanks formed in a cutting side face, wherein the plurality of mountain-shaped cutting edges provides at least one finishing cutting edge for transferring a shape of a screw, and at least one roughing cutting edge formed in a tooth shape smaller than that of the finishing cutting edge. A flank of the finishing cutting edge includes a first flank, and a second flank having a clearance angle larger than that of the first flank, wherein the finishing cutting edge, the first flank, and the second flank are sequentially provided in that order from the rake surface in a direction of a lower surface of the insert.

A pivoting split thread chasing die with fastener is disclosed. In one example, the fastener can include a retainer that captures the fastener within one half of the thread chasing die. The thread chasing die may make it easier for a user to refurbish threads of large bolts and studs.

A slotted inverse tap, compressible for insertion past damaged entry threads in blind holes. (FIG. 1 thru FIG. 5) The tool can be made to smaller sizes than that of prior art. An elongate slot (23) proceeds through a first threaded end (21), then well into a reduced diameter cylindrical body (25). After insertion to the hole bottom, a tabbed shim (28) is inserted to the slot from its side, then pressed down until stopped. The shim (28) enforces mating engagement with undamaged internal threads. A second end of hex and/or squared or other configuration facilitates use of a tap wrench or other tool for rotational extraction. Damaged threads are reformed/re-cut upon rotational withdrawal.

In the case of a screw having at least one thread (26) that is formed by a rolling process, especially a flat-die rolling process, whereby the thread (26) consists of two ridges of material (28a, 28b) which are shaped from a blank (12) by means of cold-forming during the rolling process in such a way that the thread has a closing crease (32) where the ridges of material (28a, 28b) meet each other, it is provided that the closing crease (32) is situated in the area of a flank (30a, 30b) of the thread (26).

A thread-furrowing screw comprises a shaft portion made of solid material and a thread portion attached to the shaft portion, which thread portion is wound from a profiled metal strip.

A thread forming tap has a full thread portion and a leading portion contiguous with the full thread portion and reducing in diameter toward its tip. The full thread and leading portions are provided with external thread on which lobes and recesses are alternately formed. When δ represents an angle around a tool center line toward a thread forming side, the shape of the lobe varies along a quadratic curve relative to angle δ so that relief amount increases toward inflection point angle δ. However, in a rough plastic deformation section where angle δ is greater than inflection point angle θ and exceeds the working region, the shape varies along an Archimedean curve with clearance angle α1 so that the relief amount increases linearly relative to angle δ, and a margin section is substantially zero or within a range where angle δ is less than or equal to 1°.

Disclosed herein is a method for manufacturing a screw comprising a continuous thread with a variable thread pitch, in which method a blank is rolled between two rolling dies, wherein in each rolling die a rolling profile is formed that comprises a host of curved non-parallel depressions. The depressions are designed and arranged in such a manner that during rolling no volume transport, or as little volume transport as possible, in the axial direction takes place, or a volume transport from a region of the blank where a thread section with a larger thread pitch is to be formed, to a region in which a thread section with a smaller thread pitch is to be formed takes place.

A method of communication in at least one electronic device is presented. In the method, a first execution thread and a second execution thread are created in the at least one electronic device. Also created is a message service for receiving messages for the first thread. A message to be transferred from the second thread to the message service of the first thread is generated. One of multiple data transfer mechanisms is selected for transferring the message from the second thread to the message service of the first thread based on a relationship between the first and second threads. This relationship may be one in which the first and second threads are executing within a single process, within different processes of the same device, or within different devices. The message is transferred to the message service of the first thread using the selected data transfer mechanism and processed in the first thread.

A camera module with a lens barrel containing a lens, and a lens carrier that slidably receives the lens barrel. Each of the exterior surface of the lens barrel and the interior surface of the lens carrier include a seating surface formed thereon. One of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of protrusions for controlling the relative position of the lens barrel and the lens carrier. The other of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of channels that are sized and arranged so as to slidably receive the protrusions to allow for the lens barrel to be slid into the lens carrier. The channels also each include a transverse section to allow the lens barrel to be pivoted about an optical axis of the lens barrel.

A threaded fastener for attaching an article of hardware to another article comprising a material selected for example from the group consisting of wood, particle board, plastic and fiberglass. The article of hardware is provided with at least one through hole and the article of hardware is fixed to the article by the threaded fastener extending through the through hole in the article of hardware. A shaft of the threaded fastener is provided with a thread that is not a self tapping thread cutting thread; and a tapered shank of the threaded fastener is provided with a self tapping thread cutting thread.

A threaded metal sleeve includes a core and a thread provided on the outside of the core, with the thread profile having a flank angle within the range from 25° to 35°. The pitch (h) of the thread is 0.1-fold to 0.4-fold of the outer diameter of the threaded sleeve, and the thread depth of the thread is 0.02-fold to 0.2-fold of the outer diameter of the threaded sleeve.

An assembly includes a threaded hole, a threaded fastener, and a locking compound. The threaded fastener is positioned in the threaded hole with a portion of fastener threads mated with a corresponding portion of hole threads. The locking compound is between the mated fastener threads and hole threads. The locking compound includes an aluminum pigmented compound suspended in a water-based inorganic binder.

A threaded connector for securing a panel member to a structure and for adjusting the position of the panel member relative to the structure. The connector comprises an elongate one-piece stud, a first spacer, a threaded nut, a second spacer and a turning formation. The connector permits the panel member to be mounted on the stud and the stud to be rotated to adjust the position of the panel member relative to the structure.

A method for operating a thread stitching machine for processing printed sheets to form book blocks includes providing at least one sewing station with an active connection to at least one stitching saddle and providing the at least one stitching saddle with an active connection to at least one transporting system. The printed sheets are supplied to the at least one stitching saddle, using the at least one transporting system, in at least one of a substantially vertical and a substantially horizontal plane relative to the at least one stitching saddle. At least the printed sheets in the substantially vertical plane are supplied directly onto the at least one stitching saddle or to a region of the at least one stitching saddle. The printed sheets are supplied to the at least one sewing station resting astride the at least one stitching saddle.

A machine permits an end of a thick-walled, high-pressure tubing to be chucked in a collet one time, coned, faced and threaded, using a coning head and threading head which are mounted on a carriage which can be translated laterally between three positions and the coning and threading heads parallel to the longitudinal axis of the workpiece to complete the coning and threading operations.

A yarn supply apparatus for elastic yarns in knitting machines having abruptly fluctuating yarn consumption. A yarn wheel, around which the yarn to be supplied is wrapped, furnishes the yarn to a yarn store located between a knitting station and the yarn wheel. A closed-loop controller responsive to yarn tension operates the yarn wheel via a low-inertia drive motor. The yarn store is embodied as an essentially straight segment of yarn in the yarn path in which yarn is guided so it can expand freely. The combination of a low-inertia drive motor, a yarn store that utilizes the intrinsic elasticity of the yarn, and a closed-loop controller that monitors the yarn tension by means of a sensor device makes it possible to use the yarn supply apparatus for supplying elastic yarns and to keep the yarn tension essentially constant even when the demand for yarn fluctuates abruptly.

A gripper head for the insertion of weft threads on a gripper weaving machine as well as a gripper weaving machine with such a gripper head. The gripper head thread clamp for the weft thread is controlled in a contact-free manner and with high transfer reliability of the weft thread even in the machine center.

The invention relates to a method and apparatus for opening threaded joints of drilling equipment (6) by striking the drilling equipment (6) with the percussion device of a rock drilling rig (1) and by measuring vibration originating from the drilling equipment (6) during striking. In addition to vibration, measuring means (9) measure a parameter defining at least one additional condition, on the basis of which the decision to stop striking is made.

An automated machine for attaching a suture to a surgical needle comprises a first apparatus located at a first predetermined location for sorting a plurality of randomly oriented needles and orienting each needle for automatic handling at a first predetermined location, each of the needles having a suture receiving opening formed therein. A second apparatus located at a second predetermined location is provided for automatically cutting an indefinite length of suture material to a definite length suture strand and for automatically inserting an end of the definite length suture strand into the suture receiving opening formed in the needle. Also provided is a third apparatus for swaging the needle to close the suture receiving opening about the suture to secure said suture thereto and form therefrom a needle and suture assembly. An indexing device automatically receives each individual needle in a predetermined orientation at the first predetermined location and conveys the needle for sequential processing from the first to the second locations to form the needle-suture assembly.

A braided carbon nanotube thread includes at least three carbon nanotube filaments braided into a thread. The carbon nanotube filaments include a plurality of carbon nanotubes, each of the carbon nanotubes having a length L. The carbon nanotube filaments are braided such that the carbon nanotube thread has at least 8 intersections per the length L of each carbon nanotube. The carbon nanotube thread has a tensile strength greater than the tensile strength of the constituent carbon nanotube filaments.

A detachable threaded rod is used in an injection mold, and includes an operation portion, a molding portion, and a screw. The operation portion includes a rod part, the rod part defines a mating hole and a screw hole on a bottom surface of the mating hole. The molding portion includes a front end, a rear end, and a side surface connected between the front end and the rear end. The molding portion defines a cavity on a front end. The molding portion includes a mating portion extending from the rear end and received in the mating hole. The mating portion defines a through hole communicating with the cavity. The molding portion defines external threads on the side surface. The screw penetrates the through hole and screwing in the screw hole, the operation portion is fixed with the molding portion by the screw.

A retaining cap for a plasma torch is provided that includes fast securing threads. The retaining cap includes internal threads that couple to external threads of a torch body of the plasma torch. The internal and external threads may be multiple start threads having a thread angle greater than 60°. Plasma torches and plasma cutting systems are also provided.

A seal assembly includes a first component and a second component of a gas turbine engine. The first component has a threaded portion. The second component interfaces with the threaded portion and together the threaded portion and the second component form a seal that restricts fluid flow between a first cavity and a second cavity of the gas turbine engine.

A pre-threaded and knotted needle with a length of thread knotted though the eye of the needle and a connection securing the ends of the thread and a sleeve securing a bundle of the thread so that the thread is not tangled until it is released and ready for use The thread is bundle is formed by wrapping it into a bundle and securing a sleeve around the bundle of the thread so that the thread is not tangled until it is released and ready for use. The bundle is released for use by pulling on the needle and the end of the thread to release the bundle of thread.

Pressurized gas for carrying looper thread by gas is generated by gas supply pump operated by changing over a sewing-machine motor, which drives stitch forming device, looper threading is performed through loopers by one-touch operation. Gas carrying threading device of sewing machine, comprising: looper thread introduction mechanism inserts looper thread guided to loopers; hollow looper thread guide extends from looper thread introduction mechanism to looper thread inlets and has looper thread guide outlets; gas supply pump for performing looper threading by carrying looper thread by gas from looper thread introduction area through hollow looper thread guide to looper thread loop-taker point outlets; clutch for transmitting power from sewing machine motor M to drive shaft which drives stitch forming device including loopers at time of stitch formation or to gas supply pump at time of looper threading.

A method and a device for cutting at least an upper thread of a sewing machine provided with a fabric clamping member (20), wherein a length of the thread consumed for a cut can be set within a predetermined interval. The method for cutting at least the upper thread (4) of a sewing machine (1) includes the steps: feeding a predetermined length x of said upper thread (4) utilizing a thread feeder (15), pulling out the upper thread (4) said predetermined length utilizing a displacement of said fabric clamping member (20) from a current position to a second position executing by means of a sewing machine processor (C) program sequences stored in a memory (M) for controlling a thread cutter (10) to perform a cut of at least said upper thread (4).

A threading device for a sewing machine lower looper is disclosed that can thread a lower looper safely and reliably by reliably preventing a main shaft from rotating when an operation of threading the lower looper is carried out.

A thread cutting mechanism is mounted on a sewing machine which includes a sewing platform. The thread cutting mechanism includes a driver assembly and a thread cutting assembly. The driver assembly includes a stepping motor, a swing lever pivotally connected to the stepping motor, and a pushing rod connected to the stepping motor and swing lever and driven jointly with the swing lever by the stepping motor to perform a back-and-forth process. The thread cutting mechanism is disposed on the sewing platform, and includes a thread hooking blade connected to and driven by the swing lever to move back-and-forth along a thread hooking path and to hook back a sewing thread, and a thread cutting blade disposed on the thread hooking path and for cutting the sewing thread when the thread hooking blade hooks back the sewing thread.

A lower thread ending region detection apparatus prevents problems associated with false stitchings occurring from inability to detect lower thread's exhaustion during sewing operation. The lower thread ending region detection apparatus comprises: light control unit, which contacts a part of lower thread wound on a thread bobbin and activates or inactivates at least one of the functions of emitting light, reflecting light, passing light and blocking light, due to the effect of the physical movement force generated depending on whether the lower thread of the ending region is unwound; light receiving unit, which receives the light transferred out by the light control unit and outputs a detection signal; and control and notification unit, which analyzes the detection signal output from the light receiving unit to determine whether the lower thread has reached the ending region and outputs the result to the user.

An apparatus for thread-stitching a book block includes a thread tensioning device configured to store and tension a binding thread. A single actuator, including a servo drive, drives the thread tensioning device. The method includes storing a length of binding thread; in a separate step, tensioning the binding thread; and thread-stitching the book block.

Thread tensioner for a sewing machine. In one example embodiment, a thread tensioner for a sewing machine includes a first disk, a second disk, a spring, a knob, and a sensor. The second disk is positioned next to the first disk. The spring is configured to apply tension to a thread positioned between the first disk and the second disk by exerting a force against the second disk. The spring defines a length between a first end and a second end. The knob is configured, when rotated in one direction, to travel along a threaded shaft toward the spring and thereby cause the length of the spring to shorten. The knob is configured, when rotated in another direction, to travel along the threaded shaft away from the spring and thereby allow the length of the spring to lengthen. The sensor is configured to track a current length of the spring.

A spool of thread holder and threading device for holding a plurality of spools of thread, made up of a frame and a plurality of spool thread holders, said spool thread holders further comprising a rod, a base and a wing. The wing attaches to the rod along the axial length of said rod and the rod extends from the base. Each of the individual spool thread holders comprising the multiple spool thread holder, allows receipt of a spool of thread and the wing maintains the spool of thread adjacent the base. The frame is configured for attachment to a quilting machine to allow thread to unspool from each non-rotating spool of thread during operation under substantially equal tension.

A linear recliner assembly in use with a seat having a seat back pivotally engaged relative to a seat bottom. A housing exhibits a communicating interior between a first and second ends. A drive rod is supported in linearly displaceable fashion from the first end and is secured to the seat bottom. The second end pivotally engages the seatback spaced from its pivot point. A rotatable gear located at a fixed lineal position within the housing receives the drive rod in threadably inter-engaged fashion. A trigger mechanism pivotally secured to the housing exhibits a downwardly biased detent communicating through an opening in the housing to seat between succeeding teeth of the gear. A spring supported within the housing contacts the drive rod. Upon release of the detent, a reclining force applied to the seatback results in displacement of the housing against the drive rod to bias the spring. The spring influencing the drive rod in a reverse direction such that, upon release of said detent when the seatback is in the reclined position, the spring influences the seatback to reverse pivot to a returned upright position.

A linear recliner assembly in use with a seat having a seat back pivotally engaged relative to a seat bottom. A housing exhibits a communicating interior between a first and second ends. A drive rod is supported in linearly displaceable fashion from the first end and is secured to the seat bottom. The second end pivotally engages the seatback spaced from its pivot point. A rotatable gear located at a fixed lineal position within the housing receives the drive rod in threadably inter-engaged fashion. A trigger mechanism pivotally secured to the housing exhibits a downwardly biased detent communicating through an opening in the housing to seat between succeeding teeth of the gear. A spring supported within the housing contacts the drive rod. Upon release of the detent, a reclining force applied to the seatback results in displacement of the housing against the drive rod to bias the spring. The spring influencing the drive rod in a reverse direction such that, upon release of said detent when the seatback is in the reclined position, the spring influences the seatback to reverse pivot to a returned upright position.

A threaded fastener driving tool includes a proximal end portion, a distal driving head, and a torsion zone extending proximally from the driving head, The distal driving head has a central portion and a plurality of driving surfaces. Each pair of adjacent driving surfaces define a driving space therebetween. The driving surfaces and driving spaces are configured to engage a threaded fastener. The torsion zone includes a plurality of helical grooves bounded by non-cutting surfaces, each helical groove in communication with and extending proximally from at least one of the driving spaces. The helical grooves are configured to untwist and cause lengthening of the torsion zone when an input torque applied to the proximal end portion is insufficient to overcome an output resistance torque at the driving head. The torsion zone may comprise a plurality of twisted wires or cables. A method of manufacturing the driving tool is disclosed.

The invention relates to a method and a device for removing and drawing a synthetic thread to form a fully drawn yarn. The thread is formed by joining a plurality of extruded filaments and is guided by contact on the circumference of heated guide jackets of several driven galette pairs. In order to obtain a gentle and highly homogenized treatment of the filaments, the thread is guided in an S-shaped or Z-shaped thread course by a first galette pair having two guide jackets driven in opposite directions during the removal from a spinning zone and before the drawing. Thus, both sides of the thread can be brought directly into circumferential contact with the guide jackets for in order to heat the thread.

An excavator tooth mounting member attachable to an abutment of an excavator shovel, for supporting an excavator tooth, wherein the abutment has an opening, and having a tooth mounting member with an opening, attachable to the abutment, a two part wedge secured within the openings which can be operated to expand or contract, and a rotary bolt in the wedge.

A device and method for inspecting a width of thread roots of a tubular component for exploration or working of hydrocarbon wells, the device including two arms each including a first and a second end, the first ends being connected together by a deformable portion allowing an angular displacement between the second ends, the second ends each carrying a contact element and a mechanism determining the angular displacement.

An applicator head for cutting yarn into segments of yarn and depositing the segments of yarn on a deposition surface. The applicator head includes a single mechanism that moves the yarn towards said deposition surface and also cuts the yarn into segments.

A saddle latigo strap is threaded to secure a saddle. A body portion of a saddle latigo is looped through a permanent saddle rigging. A first end of the saddle latigo having a tapered portion is inserted through a second end. Notches of the body portion are engaged with holes of the first end to secure the saddle.

We provide a tension adjustment assembly including an externally threaded support member and an at least partially hollow cylinder that is threaded internally. The threads of the cylinder and the threads of the support member are mated, allowing the cylinder to rotate about and travel along the threaded portion of the support member. The cylinder further comprises a ridge about an outer diameter of the cylinder. The tension adjustment assembly also includes an end cap retained on the cylinder by said ridge and able to rotate freely about said cylinder independently of any rotation of the cylinder about the support member. Finally, the tension adjustment assembly includes a foot attached to the end cap. When placed on the end of a tension rod this assembly allows the fit of the rod to a wall to be adjusted by turning the cylinder.

A mower carrying a rotary cutting deck has a height of cut system for adjusting the vertical position of the deck relative to the mower frame for changing or adjusting the height of cut. The height of cut system comprises a pair of parallel cross shafts that carry a plurality of pivotal suspension linkages that connect to the deck, the cross shafts and linkages pivoting jointly with one another and with a pivotal control lever. One of the cross shafts carries a torsion spring to counterbalance the weight of the deck. The control lever is maintained in a plurality of adjusted pivotal positions by a height selection bracket fixed to the frame with the height selection bracket being capable of having its position changed or adjusted relative to the frame by a single adjustment bolt. Each suspension linkage has its effective length adjusted by turning a threaded adjuster carried at the upper end of a connecting rod that is part of each linkage to allow the deck to be leveled relative to a reference plane. The adjustment of the height selection bracket is accomplished without affecting the length adjustments previously made to any of the suspension linkages.

Just chat it up, fuzzballs!

It is May 8th and time for the latest check-in thread. As previously ([4][3][2][1])) this is for actual news, updates, personal experiences, and more mutual support from and to people dealing with this virus in their daily lives. All hail the mods for continuing to provide this sanctuary for us, and good health to readers and commenters alike. How is one doing?