A precision multi-purpose machining apparatus for facilitating lathing, milling, drilling, sawing or routing operations typically using a rotary-type cutting tool. In a preferred embodiment the multi-purpose machining apparatus of this invention is characterized by an elongated support frame and a cutting tool mount cradle which is adjustably mounted on the support frame for receiving a cutting tool, such as an electric-powered DREMEL (trademark) rotary cutting tool. The support frame is capable of resting in a horizontal position, in which the cutting tool can be fitted with a cutting tool bit and the frame fitted with alternative workstock mounting attachments, to facilitate various lathing operations on a wooden or aluminum workstock. Alternatively, a saw table and saw blade can be removably mounted on the horizontal support frame and the cutting tool becomes a saw motor, the rotating shaft of which is connected to the saw blade by means of a drive belt, to facilitate various sawing operations. In another application, the frame can be disposed in a vertical configuration, in which a rotary table is removably mounted on the support frame and the cutting tool fitted with a milling blade or drill bit to facilitate milling and drilling operations, respectively. Alternatively, a router table can be removably mounted on the vertical support frame or on the rotary table, and a router bit mounted in the cutting tool to facilitate router operations.

A system and method allows visual programming of simultaneous and synchronous machining operations on multi-axis lathes. The system and method accounts for different combinations of simultaneous and synchronized lathe operations on the spindles which can utilize multiple tools. A graphic synchronization icon is assigned to each mode that preferably represents the lathe operation. Appropriate synchronous operations are grouped together in synchronization groups. The system and method are universal since a postprocessor processes the synchronization modes and synchronization groups, and translates them for use with computer programs understood by a particular CNC lathe.

A concentric coaxial cutting machine which cuts cylinders, cylindroids or cones using a chain saw from a single larger object such as a wood tree trunk, a block of ice or a block of plastic. An embodiment of the invention comprises a transverse support member having directly or indirectly mounted thereon; a headstock member including; a headstock spindle member mounted to said headstock member including; a drive spindle rotationally mounted to said headstock spindle member and adapted to rotationally retain one end of an object to be centrically cut; a tailstock member including; a tailstock spindle member mounted to said tailstock member including; a tailstock spindle rotationally mounted to said tailstock spindle member and adapted to retain an opposite end of the object; a drive assembly in rotational communication with the drive spindle and adapted to rotate said drive spindle around a common axis with said tailstock spindle; and, a first chain saw variably aligned at an angle to said common axis and adapted to concentrically cut the object from at least the opposite end.

A production machine (12) is proposed, in particular a machine tool or the like, having a machine housing (13) for at least partially enclosing the production machine (12) and having an operating state warning light device (1) for the optical display of at least one operating state of the production machine (12), in particular of multiple different operating states, wherein at least one warning light element (1) is provided, which is implemented as a light-emitting diode (1) and has a warning light surface, wherein the warning light element (1) is arranged on a carrier layer, wherein the warning light element (1) has at least one luminescent layer, which emits a warning light and is arranged between a first and a second electrode, in particular a cathode and an anode, wherein better perceptibility is achieved than in the prior art. This is achieved according to the invention in that the machine housing (13) at least comprises the warning light element (1), and in that the electrode surfaces of the electrodes substantially correspond to the warning light surface of the warning light element (1), and in that at least one of the electrodes is light-transmitting and/or transparent.

A railroad tie removal machine for removing a railroad tie from beneath a pair of rails. The machine includes a movable frame, wherein when the frame is in a stationary location, a workspace is defined with respect to the stationary frame. A tie shear workhead and a kicker workhead are both mounted to the frame. The tie shear workhead includes two sets of shears configured and arranged to divide the tie into a center portion and two outer portions. The kicker workhead includes at least one kicker configured and arranged to outwardly kick corresponding outer portions of the cut tie from under the associated rail.

Systems, apparatuses, and associated methods for counting and sorting coins are described herein. In one embodiment, a coin processing machine can include a coin input region, a coin counting portion, and a coin sorting portion. The coin counting portion can include a first hopper that receives coins from the coin input region, and a coin discriminator that receives the coins from the first hopper and discriminates the coins to determine their value. The coin sorting portion can include a second coin hopper that receives the coins from the coin discriminator, and a coin sorter that receives the coins from the second hopper and sorts the coins into individual denominations.

Disclosed are an apparatus for setting a price for a multi-vending machine and a method thereof. The apparatus includes a price setting unit for inputting a price setting function, selecting a price setting column and inputting price information about the selected column; a control unit for controlling a price display of the selected column when the column is selected and the price information is input through the price setting unit; and a price display unit for displaying prices of products exhibited in a column according to a price display control of the control unit.

A voucher machine, particularly an automated teller machine, for the input and output of vouchers such as cash or checks, having a processing section (1) for transporting and processing vouchers to be input and output, is characterized in that the processing section (1) has two processing circuits (5, 6) for processing input vouchers which allows rapid output of vouchers identified as unsuitable for acceptance.

A coin depositing and dispensing machine is provided where its transport mechanism is simplified and downsized while coins to be dispensed are subjected to the identifying action. A coin passage 32 is provided in an annular form along which a single annular transporting belt 43 remains supported for transporting the coins. An input feeding portion 34, denomination-specific accommodating and ejecting portions 35, a bulk escrow portion 36 are disposed at the inner side of the coin passage 32. The coin passage 32 has a receiving and transporting zone 39 for receiving the coins released from the input feeding portion 34, the denomination-specific accommodating and ejecting portions 35, and the bulk escrow portion 36 and a sorting and transporting zone 41 for sorting and delivering the coins to the input feeding portion 34, the denomination-specific accommodating and ejecting portions 35, and the bulk escrow portion 36. An identifying and transporting zone 40 where an identifying portion 58 is disposed is also provided between the receiving and transporting zone 39 and the sorting and transporting zone 41. The deposited coins and the dispensing coins can be transported by the single annular transporting belt 43. As the transport mechanism is arranged for common use between a depositing system and a dispensing system, its construction can thus be simplified and downsized.

In one embodiment, a banknote handling machine includes a recognition unit configured to recognize a kind of each banknote taken in a take-in unit, a plurality of stacking units, respectively configured to stack therein the banknotes, a transport unit configured to transport the banknotes, respectively recognized by the recognition unit, to any of the plurality of stacking units, an instruction accepting unit configured to accept an instruction concerning an automatic decision mode provided for deciding the kind of the banknotes to be stacked, by utilizing a recognition result obtained by the recognition unit, for each of the plurality of stacking units, and a control unit configured to control the transport unit to transport each banknote to a destination, which destination is decided based on the instruction accepted by the instruction accepting unit and on the recognition result obtained by the recognition unit.

A sensor device in a banknote processing machine comprising a transport device by means of which banknotes to be processed are transported past the sensor device, a cleaning device that cleans the sensor device or a transparent region of the sensor device, and a control device that controls the components of the banknote processing machine. The sensor device includes means for enlarging the spacing between the transport device and the sensor device. The control device controls the means and the cleaning device in such a way that the spacing between the transport device and the sensor device is enlarged by the means while the cleaning device cleans the sensor device.

A rotating rod in combination with a retractable concave/convex tape creates pairs of folds on a fabric article on a horizontal platform. A machine and method are described. The tape extends outward and downward to hold the article at a first fold location, while the rotating rod moves from below, then over and across the tape, pulling the fabric with it to create a second fold at the farthest motion of the rod. These motions are typically repeated on the other side of the article, then at right angles, created a finished, folded article of a generally rectangular shape.

A printing cylinder assembly for a printing machine having a sleeve cylinder which can be simply coupled to and decoupled from a rotating shaft and which can be exchanged easily. The sleeve cylinder is mounted to fit on the rotating shaft so that it can be fitted on, and be extracted from, the rotating shaft, constituting a printing cylinder. The rotating shaft is provided with a cam shaft and a coupling member that constitutes a coupling mechanism. In a coupling and a decoupling state which the coupling mechanism comes into, rotations of the cam shaft cause the coupling member to couple and decouple the sleeve cylinder to and from the rotating shaft when the coupling member is diametrically urged against, and parted from, the inner diametric surface of the sleeve cylinder, respectively.

A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions.

A positioning device for a turnable table of a saw machine having a pivot shaft that pivotally connects a pair of clamping units. A pressing member with an attachment portion for attaching to a coupling unit may be formed on each clamping unit. By manipulating a trigger of the coupling unit, the pair of clamping units can be driven to rotate a pair of corresponding clench members for selectively clamping or unclamping a base of the saw machine. Thereby, the turnable table can be secured in place upon adjustment.

The invention relates to a metal-cutting machining process for a semi-finished product having a predetermined shape and at least one machining surface which has the steps: applying a protective foil having a predetermined elongation at break to the at least one machining surface with a predetermined adhesive force, placing a metal-cutting tool in a predetermined position above the machining surface, exerting a predetermined mechanical force in a predetermined direction for a predetermined length of time to the tool for carrying out a metal-cutting process on the semi-finished product and lifting the tool from the at least one machining surface after the predetermined length of time. In order to protect the semi-finished products from damage through the machining residues and at the same time not to impair the drilling performance, according to the invention through the adhesion an adhesive force is produced between the protective foil and the machining surface of substantially 10 N/25 mm and a protective foil is used which has an elongation at break of between 80 and 120%.

An adjustable riving knife assembly including a riving knife and a saw machine riving knife adjustment mechanism, the adjustment mechanism including a locating member and a locking unit. The locating member defines a track, and the riving knife has a riving knife body and a coupling portion inserted into the track. The locking unit includes an axle holder affixed to the locating member, a brake mounted on the axle holder, an operating member connected to the brake and a locking member to be driven by the brake. Rotation of the operating member causes the brake to move the locking member relative to the riving knife between a locking position, where the locking member engages the riving knife, and an unlocking or adjusting position, where the locking member is disengaged from the riving knife.

The disclosed embodiments include self-lubricating oil feed systems that may include an integral bearing. The oil feed systems may include gear pumps suitable to minimize the axial profile of the oil feed systems. Additionally, the oil feed systems may be directly coupled to turbomachinery having a gear, and provide for mechanical support and lubrication of certain components of the turbomachinery. In certain embodiments, the oil feed systems enables the transfer of a lubrication fluid to the bearing during operations of the turbomachinery.

An exemplary system for delivering a turbomachine fluid to a supplied area is a pump configured to draw fluid from both a first container and a second container when operating in both a positive g-force environment and a negative g-force environment. The fluid from the first container in a positive g-force environment is a mixture of air and oil, and the fluid from the first container in a negative g-force environment is primarily oil.

An example method of accessing a valve assembly of a turbomachine includes accessing a check valve of the valve assembly from a first position that is radially outside a flow path through the turbomachine. The method accessing a shut off valve of the valve assembly from a second position that is radially outside the flow path. The check valve and the shut off valve are configured to influence communication of lubricant along a lubricant communication path that extends between a location radially outboard the flow path and a location radially inboard the flow path. The first position is the same as the second position in some examples.

A loading machine for feeding a receiver includes, but is not limited to, a drum cam that is configured to rotate. The drum cam includes, but is not limited to, a first cam path, and a second cam path. A rammer subassembly is positioned proximate the drum cam. The rammer subassembly includes, but is not limited to, a first member that is configured to engage the first cam path and to move longitudinally with respect to the drum cam upon a rotation of the drum cam, and a second member that is configured to telescopically engage the first member and further configured to engage the second cam path and telescopically move with respect to the first member upon the rotation of the drum cam.

A construction machine includes: a lower propelling body; and an upper slewing body which is slewably mounted on the lower propelling body. The upper slewing body includes: an engine room provided with an intake opening and a discharge opening; a duct provided in the engine room so as to communicate with the discharge opening; and an exhaust gas pipe which guides exhaust gas discharged from the engine into the duct. The discharge opening and an outlet of the duct are open downward from the engine room. A portion on a distal end side of the exhaust gas pipe is inserted into the duct. The duct and the exhaust gas pipe are configured to cause the exhaust gas to be mixed with cooled air in the duct and cause the mixture of the exhaust gas and the cooled air to be discharged downward from the discharge opening.

Tire changing machines having force feedback and position control systems are described that may be used to control operation of one or more components of the machine during a tire change procedure. Information may be provided to a machine operator concerning detected operating conditions during the procedure. Excessive or abnormal forces or component positions can be detected and corrective action may be taken at any point in the tire change procedure. Successful component position profiles may be saved for future recall and execution by the machine.

The tire run-flat ring removal and installation machine includes three basic embodiments, each having a tire support table (14) and actuators for removing and/or reinstalling the run-flat ring (R) in the tire (T). The actuators may be hydraulically, pneumatically, or electromechanically powered, and save the technician considerable time and effort in the process.

A tire-changing machine comprising support means (4) for a wheel, a tool-bearing arm (50) at an end of which a bead-breaking tool (6) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motorised means (32, 33) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means (4) and the tool-bearing arm (50), such as to press the bead-breaking tool (6) against a flank of a tire on the wheel, characterized in that it comprises second motorised means (64), activatable independently from the first motorised means (32, 33), which second motorised means (64) are destined to rotate the bead-breaking tool (6) about the hinge axis (E) with the tool-bearing arm (50), in order to vary an inclination of the bead-breaking tool (6) with respect to the axis (A) of the wheel which is mounted on the support means (4).

A working tool orienting device in a tire demounting machine includes a base which supports a rotary apparatus, rotating about an axis of rotation and designed to bear and lock wheel rims thereon; a column rising from the base and having an end secured to the base and an end opposite thereto facing upward; a moving arm, which is moved between positions close to and away from the rotary apparatus; a support arrangement for supporting working tools, which is coupled with the upward facing end, and joint means interposed between the support arrangement and the upward facing end, which are configured to make the support arrangement movable relative to the arm.

A device for automatic demounting of a tire from a rim having: a support arm (4); a demounting tool (10) articulated to the support arm (4); an attachment member (12) having one end articulated to the demounting tool (10) by a first articulation pin (13) and the other end thereof pivoted to the support arm (4) around a second articulation pin (14) extending substantially parallel to the first articulation pin (13); at least one extension appendage of the support arm (4) or a section (17) of the support arm (4), which extends beyond the second articulation pin (14); and at least one tie rod member (18) that is articulated on one side to the tool, and on the other side to the extension appendage or section (17) of the support arm (4).

Tire changing machines with automated positioning and closed loop control of bead pressing devices are described to maintain and control operation of the bead pressing devices during tire mount and de-mount procedures. Methodology is also disclosed.

A bead breaking unit for tire changing machines includes an arm having a bead breaking tool and associated rotatable with a supporting structure between an away position, wherein the tool is spaced out from the supporting structure, and a work position, wherein the tool is near the supporting structure, an actuator apparatus having a mobile element associated sliding with the arm, a dragging device for dragging the arm, associated with the mobile element and suitable for operating during movement of the mobile element from an extracted position to a retracted position to bring the arm to the work position, a coupling device between the mobile element and the arm, suitable for operating during movement of the mobile element from the retracted to the extracted position to bring the arm from the work position to the away position, and a selection device associated with, and suitable for operating/disconnecting the coupling device.

There is described a machine (1) for regeneration of pneumatic tires (2) comprising a beading device (5) for axial locking of the pneumatic tire to be regenerated in the direction of the revolving axis of the pneumatic tire (2) which provides an untranslatable bead (6) and a translatable bead (7) in said direction, a work rasp (9) mounted on a spindle (25), inflation means (66) of the pneumatic tire and a discharge cochlea (77). Said machine further comprises a roughing miller (8) suitable to prepare the pneumatic tire to a subsequent finishing by means of the rasp (9), said miller (8) being mounted on the same spindle (25) of the rasp (9) and after it, and constituted of a monoblock (27) with discharge channels (28) for chips produced by inserts (29) with a curved profile (30) providing a plurality of planar blades (31) joined by discharge grooves (32) of the chips produced.

A machine for fitting and removing wheel tires for vehicles includes a bearing structure, at least an apparatus for fastening and rotating the rim of a wheel for vehicles, a tool-carrier unit associated mobile with the bearing structure and having a removal tool, at least an adjustment apparatus suitable for adjusting the position of the tool-carrier unit with respect to the bearing structure, to place the tool-carrier unit into a work configuration wherein the removal tool is arranged in proximity of the apparatus for fastening and rotating, at least a memorisation device for memorising the position of the tool-carrier unit in the work configuration and at least a positioning device for positioning the tool-carrier unit with respect to the bearing structure between the work configuration and a configuration of minimum overall dimensions, wherein the tool-carrier unit is arranged in proximity of the bearing structure.

The present invention relates to a device for demounting a tire (T) from a rim (W) including at least one support element;an articulation pin element borne by the at least one support element;a spring shackle element having a first end and a second end articulated on the articulation pin;a demounting lever;an actuator borne by the at least one support element and set to act on the demounting lever in order to make the demounting lever angularly move during use; andfriction or elastic loading means designed to slow the angular movement of the spring shackle element around the articulation pin with respect to its angular movement around the first axis (x-x).

A tire changer machine and tire demounting methodology includes a demount tool assembly having a demount tool selectively positionable relative to a support and configured to extract a bead of the tire from the wheel rim. A guide element is mounted to the support, and the guide element is operable to provide a limited degree of freedom of the distal end from a predetermined path of motion in a tire demount procedure, thereby allowing the distal end to reliably grip the tire bead while the support arm is maintained in a stationary position relative to the wheel rim.

Automated tire changer machines, control systems and methods therefor utilize positive contact and contact force generation between wheel rims and bead breaker devices to break tire bead seals. The bead breaker devices may accordingly follow different geometries of wheel rims without prior knowledge or identification of the specific rim configuration by the machine.

The present invention concerns a wheel-clamping device for wheels on wheel-service-machines with only one drive unit and further a method for clamping wheels on a wheel-clamping device of wheel-service-machines with only one drive unit. The innovative wheel-clamping device for a wheel-service-machine according to the present invention comprises a frame 20 having a through-opening 22, and a spindle 30 being rotatably supported in the through-opening 22. Further, the spindle 30 has a through-hole 32 with a mounting-side end 30b and a driving-side end 30a, which is connectable to a drive means which is provided for a rotary movement for the spindle 30, wherein the spindle 30 has an external thread 34 on an external circumferential portion. Moreover, the wheel-clamping device comprises a sleeve 50 with a turntable 58 for the wheel to be clamped, wherein the sleeve 50 has an internal thread portion 52 which is in threaded engagement with the external thread-portion 34 of the spindle 30. Furthermore, a stopping or holding means 70 is able to temporarily hold the sleeve 50, and a clamping means 60 for the temporarily fixation of a fixing element 40 which is inserted through the mounting-side end 30b, to the spindle 30 is also provided in the innovative wheel-clamping device.

A fluid screen for a washing machine, and a washing machine including a fluid screen, is provided. The fluid screen includes a generally planar member including a first end and a second end extending from the first end. The first end is mounted within the wash tank of the washing machine at a location generally in proximity to an operating fluid level within the wash tank. During operation of the washing machine, fluid circulates within the wash tank to create a rolling wash action and the second end of the fluid screen extends from the first end generally in the direction of fluid flow across the surface of the wash tank.

Embodiments of the present disclosure include cleaning processes, closed loop cleaning machines, and methods of cleaning an article. The cleaning process includes contacting a surface of an article with a cleaning composition in a cleaning chamber, where the cleaning composition includes at least about 85 percent by weight organic solvents, based on total weight of the cleaning composition, and where at least about 5 percent by weight of the organic solvents is propylene glycol, based on total weight of the organic solvents, to clean the surface of the article, collecting the cleaning composition including contaminants, and recovering the cleaning composition via distillation, where a distillation apparatus removes the contaminants from the cleaning composition and is connected to the cleaning chamber by a process stream.

A dishwasher having a washing compartment; an air-guiding channel to generate an airflow; and a sorption drying system to dry items to be washed. The sorption drying system has a sorption compartment with reversibly dehydratable sorption material and the sorption compartment is connected to the washing compartment by the air-guiding channel. The reversibly dehydratable sorption material in the sorption compartment is layered in form of a sorption unit that has an inlet cross-sectional area such that the substantially identical respective air volume flow value that is applied to each entry point of the inlet cross-sectional area.

A cleaning machine for containers, containing a housing in which various treatment stations, including a feed station and a discharge station, are accommodated, whereby the housing has two side walls located opposite each other. In order to simplify the installation of the cleaning machine, a modular construction is used, whereby at least the discharge station is formed as a module.

The invention relates to a cleaning system for coffee machines, comprising a cleaning device for periodically cleaning the coffee- and/or milk-carrying components using a cleaning liquid, which contains cleaning agent in the form of balls or tablets dissolved therein, wherein the cleaning device is provided with a time- and/or product-cycle-dependent controller and a metering apparatus (1) for the cleaning agent (10) that interacts with the controller. Thus, it is possible to program the cleaning process in a customized manner according to the mode of operation and to carry out the cleaning process fully automatically according to the program. The metering of the cleaning agent (10) according to the program ensures an always optimal cleaning effect together with sparing use of cleaning agents. Simple and safe handling is achieved by using ball- or tablet-shaped cleaning agents.

In a method for multiple cutoff machining a rare earth magnet block, a cutting fluid feed nozzle having a plurality of slits is combined with a plurality of cutoff abrasive blades coaxially mounted on a rotating shaft, each said blade comprising a base disk and a peripheral cutting part. The slits in the feed nozzle into which the outer peripheral portions of cutoff abrasive blades are inserted serve to restrict any axial run-out of the cutoff abrasive blades during rotation. Cutting fluid is fed from the feed nozzle through slits to the rotating cutoff abrasive blades and eventually to points of cutoff machining on the magnet block.

Provided is a gear grinding machine the maintainability of which can be improved and which is capable of being miniaturized. More specifically, provided is a gear grinding machine wherein a threaded grinding stone (17) and a workpiece (W) are engaged with each other and are rotated in this state, resulting in the workpiece (W) being ground, and wherein between a dressing position (P2) where the threaded grinding stone (17) can be dressed and a retreat position (P1) to which a retreat is made from the dressing position (P2) during grinding, a disk dresser (66) which, by being driven into rotation, dresses the threaded grinding stone (17) is swung about an axis (C2) which is parallel to an axis (C1) that is the rotational axis for the workpiece (W) and which intersects, at right angles, the direction in which the threaded grinding stone (17) is fed toward the workpiece (W).

A method of ductile mode machining a component of a plasma processing apparatus wherein the component is made of nonmetallic hard and brittle material wherein the method comprises single point turning the component with a diamond cutting tool causing a portion of the nonmetallic hard and brittle material to undergo a high pressure phase transformation to form a ductile phase portion of the hard and brittle material during chip formation wherein a turned surface is formed from a phase changed material and the turned surface is a grooved textured surface of phase changed material.

The core sand filling device includes the core box, a blow head which is placed below the core box so as to move up and down in a relative manner to the core box and divided into a sand blowing chamber and a sand storage chamber that are communicatively connected to each other, a compressed air supply unit which is communicatively connected to the sand storage chamber and supplies compressed air into the sand storage chamber, an aeration air supply unit which is communicatively connected to the sand blowing chamber and supplies into the sand blowing chamber aeration air for suspending and fluidizing core sand inside the sand blowing chamber, and an exhaust valve which is communicatively connected to the sand blowing chamber and exhausts compressed air remaining in the sand blowing chamber.

Provided in one embodiment is a method of forming a connection mechanism in or on a bulk-solidifying amorphous alloy by casting in or on, or forming with the bulk-solidifying amorphous alloy, a machinable metal. The connection mechanism can be formed by machining the machinable metal.

A dial of a circular hosiery knitting machine of the type with a cylinder and dial with yarn cutting device. The dial comprises a dial body which is substantially disk-shaped. The dial is provided with a cutting device, which comprises a plurality of cutting sectors which are distributed around the axis of the dial body and have cutting edges. The cutting sectors are arranged at sectors of the dial body which are intended to be free from needles. The cutting device comprises a cutter which is adapted to abut against the cutting edges of the cutting sectors to cut at least one yarn engaged by one of the cutting sectors in its rotary motion about the axis of the dial body with respect to the cutter.

A rotary sinker enabling stitch formation by a knitting machine using a rotor for forming a stitch, a knitting machine including the rotary sinker, and a stitch forming method are provided. The ring sinkers as rotating bodies are capable of rotating about a rotation axis independently of each other. The rotation times of the ring sinkers are set to be different from each other. Thus, the rotation times are adjusted to be different between the ring sinker that holds an old loop and the ring sinker that holds a new loop. Adjustment of the rotation times prevents application of a large tension to the knitting yarn made of low stretch fiber, and a stitch can be formed even with a knitting yarn made of non-stretch or low-stretch fiber.

A double-cylinder circular machine, particularly for knitting hosiery items, with simplified actuation mechanism, comprising a supporting structure which comprises a footing, which supports a lower needle cylinder, and a column which extends substantially vertically, protrudes upwardly from the footing and supports an upper needle cylinder, which is arranged above and coaxially with respect to the lower needle cylinder, and further comprising elements for the actuation of the lower needle cylinder and of the upper needle cylinder with a rotary motion about a common axis, the actuation elements comprising an electric motor which is connected kinematically to the lower needle cylinder and to the upper needle cylinder and is accommodated inside the column.

A knitting machine comprising a needle holder, which supports a plurality of needles which can be actuated with an alternating motion along their axis and means for guiding the needles on the needle holder which comprise channels for forming knitting which are defined proximate to the end of the needle holder and sliding channels which are defined on the needle holder in a region that is spaced from the end of the needle holder, each one of the channels for forming knitting being engageable by a needle and defining with its inlet, which is directed toward the outside of the needle holder, resting contact regions for the knitting during the retracting motion of the needles, the number of the sliding channels being smaller than the number of the channels for forming knitting.

A knitting head of a knitting machine for manufacturing flexible hoses (1) with a knitted reinforcement layer, which comprises a guide body (14) with a central tubular conduit (15) for the passage of the bearing layer (2) and having a outlet end portion (16) with a first outer peripheral surface (17) having a first predetermined radius (r1), a plurality of knitting needles (18) arranged along the periphery of said end portion (16) of said conduit (15) and having first longitudinal end sections (18') arranged along the circumference of said outer peripheral surface (17) and second longitudinal end sections (18″) arranged over a second cylindrical surface (19) having a second radius (r2) greater than said first radius (r1), at least one disk-shaped cam element (22), which is adapted to rotate at a first rotation speed and has a third predetermined radius (r3). The third radius (r3) is greater than said second radius (r2), connection means (23) being provided for connecting said disk-shaped element (22) to said second end sections (18″) of said needles (18), said connection means (23) having at least one longitudinal portion (24) with a radial dimension decreasing from said third radius (r3) to said second radius (r2).