Abstract: A water flow control device which includes a cup-like mounting base fastened to the water discharging pipe of a water supply system, a casing fastened to the cup-like mounting base, a valve stem mounted inside the cup-like mounting base and the casing and moved to open/close the waster passage between the cup-like mounting base and the casing, a control rod mounted in the casing for moving by hand, a rotary actuating rod coupled between the valve stem and the control rod and moved by the control rod to force the valve stem into the open position or the close position, and a locating mechanism made on the inside of an upright inside tube inside the casing for holding the control rod and the rotary actuating rod in place.

Abstract: A trailer having a slideout mechanism for moving an extensible cabin between a retracted position wherein the cabin is substantially inside the trailer and an extended position wherein the cabin is substantially outside the trailer. The slideout mechanism comprising an extension means for positioning the cabin between the retracted and extended positions and a leveling means for vertically positioning the cabin floor between a raised position wherein the cabin floor is substantially above the trailer floor and a lowered position wherein the cabin floor is substantially level with the trailer floor. In one embodiment, the leveling means comprises a frame member having a predetermined profile for controlling the vertical movement of the outboard end of the cabin floor as the cabin is positioned between the retracted and extended positions. In other embodiments, the leveling means comprises a cam assembly or a riser assembly for controlling the vertical position of the cabin floor.

Abstract: A remotely controlled device for rotating the steering-wheel of a vehicle consists of an upper portion for gripping the steering-wheel ring by means of jaws (1), of a central frame (14) carrying a motor (16) with the relevant motion transmission chain (10, 11, 12, 13, 15) and means for detecting and memorizing the rotations (17, 19, 22, 23, 24), and of a lower portion with supporting members (27, 28, 29, 30, 31) which provide the device with the base required to react to the steering-wheel reaction torque.

Abstract: A fulcrum of a lever member which is rotatably supported by a stationary shaft has force and action points provided with a force point regulator and an action point regulator, respectively. Each of the regulators has a roller and a pair of guide plates guiding the roller between the guide plates as the lever member is rotated about the fulcrum supported by the stationary shaft.

Abstract: In an article transporting system, a first linear moving arm and a second linear moving arm are juxtaposed to each other so as to be moved linearly while keeping a parallel positional relationship with each other. First end portions of the linear moving arms are coupled to an article transporting unit through first and second links. A linear drive mechanism is provided for linearly moving the article transporting unit in a direction perpendicular to the moving direction of the linear moving arms by the linear movement of the first and second linear moving arms. The first and second linear moving arms are synchronously linearly moved in opposite directions to each other. In this case, to avoid an unstable posture of the article transporting unit during the movement, a posture maintaining device is provided between one of the first and second linear moving arms and the article transporting unit.

Abstract: In order to develop a wet razor consisting of a handle, a razor head which can be connected to the front end of the handle, in particular a razor blade unit with at least one razor blade, and a connecting device for connection of the razor head to the handle, to the effect that the results of shaving are improved and the razor can also be used for medical purposes for preoperative shaving, it is proposed that the razor head is mounted so as to be pivotable relative to the handle about a pivot axis located essentially perpendicular to a cutting edge of the razor blade and essentially in the plane of the razor blade.

Abstract: A bar stock supporting and feeding apparatus which includes first and second series of bar stock support members centered about a longitudinal axis and movable with respect to the axis to rotatably engage a length of bar stock. An adjustable stop mechanism is provided to quickly adjust the apparatus to rotatably support bar stock of different diameter. A loading and unloading mechanism is provided which does not require that an operator's hands be placed dangerously close to the apparatus. A bar stock feeding apparatus is provided with a similar gear system for engaging the bar stock and feeding it into an adjacent machine tool. A fail-safe mechanism prevents disengagement of the support apparatus in the event of a loss of fluid pressure in the system.

Abstract: An apparatus for axially adjusting a bottom work roll of a plug mill to align the grooves of the top and bottom rolls. The apparatus includes a bottom roll chock having a pair of laterally extending members, each carrying a transverse, tapered wing shaped end portion. A pair of spaced apart adjustment assemblies are mounted on the plug mill housing adjacent the lower roll chock. A pair of tapered wedges is carried by each of the adjustment assemblies. The wedges are adapted to slideably engage and move the tapered wing shaped portions of the lower roll chock. A segmented tie bar having a manually rotatable turnbuckle is rigidly attached to lever arms carried by the adjustment assemblies.

Abstract: A controller comprises a valve body having a valve element and a valve seat defining a fluid cannel openable and closable with a reciprocating upward and downward movement of a valve stem, a casing fixed to an upper portion of the valve body, an operating rod provided in an upper inside portion of the casing upwardly and downwardly movably, a drive device for moving the rod upward and downward, and a transmission device provided in a lower inside portion of the casing for transmitting a force acting on the rod to the valve stem.

Abstract: An apparatus for inspecting automatic lock sliders comprises a table for horizontally holding and intermittently moving sliders, an elevating board disposed above the table and adapted to be reciprocated vertically at a predetermined stroke while the table is at a stop, an auxiliary support block attached slidably to the elevating board so as to be vertically reciprocated above the slider held on the table, and a retainer rod and a pressure rod both attached to the auxiliary support block as allowed to reciprocate vertically and elastically urged downwardly.

Abstract: A touch button controlled water stop mainly consists of an outer sleeve, a shaft rod, an upper toothed ring, a lower toothed ring, a spring guide bush, two springs, and a plunger; the shaft rod extending through a spring, a washer, a packing sheet, and a bushing ring and subsequently passing through the hollow cylindrical outer sleeve having a shaft support formed therein, the upper toothed ring, the lower toothed ring, the spring guide bush, and another spring and ending with the plunger secured thereon by a screw. The top end of the shaft rod can be linked with a touch button actuating means and the outer sleeve can be accommodated in a rear connector so that depressing the touch button will move the upper toothed ring to engage with the lower toothed ring. Further, raised blocks formed on the outer sleeve's inner wall confines the slide motion of the upper toothed ring and the lower toothed ring in such a way that the shaft rod will in turn dwell at two positions for each depressing.

Abstract: The present invention teaches a method and apparatus for a single stroke kinematic system, having a required mid stroke dwell, which permits positioning of the mid stroke dwell with respect to both space and time. A four bar linkage mechanism is disclosed having a bottom stroke and a top stroke toggle thereby kinematically providing the acceleration ramps into and out of the bottom stroke and top stroke dwells. A cycloidal drive mechanism is provided to drive the four bar linkage and providing time/phase shifting of the cycloidal drive's mid cycle dwell.

Abstract: A storage file includes a cabinet enclosure with five closed and one open side. A tray is received in the cabinet enclosure. The tray is selectively moveable by sliding between fully opened and fully closed positions. A retractable door is mounted to the cabinet enclosure. A spring loaded linkage connects the retractable door to the tray. When the tray is opened, the door retracts, by operation of the linkage, into the cabinet enclosure exposing the tray and its contents. When the tray is closed, the door is closed by operation of the linkage thereby sealing the contents in the tray within the cabinet enclosure.

Abstract: Silk-screen printing apparatus is provided for the silk-screen printing of articles such as oval-shaped bottles and containers on the two major curved peripheral surfaces thereof, sequentially, with one printing pass. The apparatus utilizes, in this case, two squeegees positioned one behind the other and synchronized in such a manner as to force ink through a screen provided with two image patterns as each of the two image patterns on the screen moves sequentially over the two curved surfaces to be printed.

Abstract: Fluid wells, particularly oil wells, exert heavy shock loads on the string of sucker rods extending down to the fluid pump located adjacent to the producing formation. A conventional rocker arm must lift the sucker rods the column of oil in the casing plus the weight of the fluid pump, overcome the inertial load and then come to a stop before reversing the stroke. The employment of linear induction motors to reciprocate the oil well rocker arm and then operate as a generator on the reverse stroke reduces the shock loading and the returns the generated electrical energy to the well pumping system. The instant invention greatly reduces the maintenance costs of a conventional oil well and provides greater efficiency of the well pumping system.

Abstract: A reciprocating mechanism includes two cylinders oppositely extended outwards from a housings a piston slidably engaged in each of the cylinders, a cap fixed to the free end of each of the cylinders, a pair of gears rotatably supported in the housing, a pair of pinions engaged between the gears, and a pair of racks engaged with the gears respectively and secured to the pistons respectively. The pinions and the axles are rotated by the gears and the racks when the pistons move toward each other and move away from each other.

Abstract: The present invention teaches method and apparatus for a single stroke kinematic system, having a required mid stroke dwell, which permits positioning of the mid stroke dwell with respect to both space and time. A four bar linkage mechanism is disclosed having a bottom stroke and a top stroke toggle thereby kinematically providing the acceleration ramps into and out of the bottom stroke and top stroke dwells. A cycloidal drive mechanism is provided to drive the four bar linkage and providing time/phase shifting of the cycloidal drive's mid cycle dwell.

Abstract: The device prevents any relative translation movement in a first plane between two members moving one with regard to the other in a second plane substantially perpendicular to the first plane. Two linkages P.sub.1 P.sub.4 and P.sub.2 P.sub.3 are flexibly connected at their middle parts by members F1,F6 and a reinforced part 7. The two linkages have one of their ends connected to the first member by a fixed pivot point P.sub.1 and a movable pivot point P.sub.3, the other end of the two linkages being connected to the second member by a fixed pivot point P.sub.2 and a movable pivot point P.sub.4, the fixed pivot points and the movable pivot points being comprised of flexible portions, F.sub.1 to F.sub.4,8 and 9 of the linkages.

Abstract: A device and a process are disclosed for driving a moving surface in a reciprocating motion in a plane, and having a magnitude A.sub.2. Two parallelograms are provided, which can be distorted in a plane perpendicular to the plane where the motion is carried out. Each of both parallelograms exhibits two parallel sides, one being common to both parallelograms and driven in a reciprocating motion having a displacement A.sub.1 =A.sub.2 /2, the other parallel side of the first parallelogram being stationary and the other parallel side of the second parallelogram being driven in a reciprocating motion having a displacement A.sub.2.

Abstract: A fine displacement device for establishing a measured micro displacement includes first and second plate members disposed in spaced relation to each other to define a gap therebetween with the plate members being secured to each other at opposed portions thereof. An internally threaded hole is formed through one plate member perpendicular thereto and an externally threaded screw is fastened in the hole with an end of the screw abutting against the other plate member. Upon turning the screw in one direction, the plate members will be deformed elastically in a direction perpendicular to the plate members and a distance between a plane of the first plate member and a deformed portion of the first plate member is used as a measure for establishing the micro displacement.

Abstract: A telescoping platform assembly able to convert each unit of distance moved by a driver into two, four, or greater number of units of platform extension includes five or more interconnected slide members. The interconnected slide members are extended by operation of a powered driver coupled to the second slide member cooperating with first, second, and third cable and pulley mechanisms. The first cable and pulley mechanism couples the first, second, and third slide members together so that the third slide extends twice as far as the second slide member. The second cable and pulley mechanism couples the second, third, and fourth slide members together so that the fourth slide members extends three times as far as the second slide member. The third cable and pulley mechanism couples the third, fourth, and fifth slide members together so that the fifth slide member extends four times as far as the second slide member.

Abstract: A package storing apparatus wherein a belt conveyor is provided adjacent to a package storehouse provided with a number of placing shelves on which a package erected on a tray is placed. A package transfer device for transferring a package between the package storehouse and the belt conveyor comprises a fluid-pressure actuator arranged in a vertical direction, a rack connected with the fluid-pressure actuator and reciprocated thereby, a transfer sack connected with the sack by a driving force transmitting device, and a hook for holding the tray, which is provided on a support rod secured to the transfer sack.

Abstract: A diaphragm valve for high pressure use has a metal diaphragm which is actuated into and out of direct engagement with a valve seat by an air operator acting through a force multiplying lever assembly. The valve seat is confined by rigid interior and exterior sleeves while the sealing surface is contoured to have a concave configuration corresponding to the contour of the diaphragm in its deflected position. The air operator is provided with a stroke adjustment mechanism that is locked in adjusted position by a member that is generally accessible only when the operator is disconnected from the valve.

Abstract: A mechanical force enhancement device which both amplified an input force to produce a larger output force while also reducing the speed of an output member during the latter part of the output stroke. The device employs a sequential pivoting operation which is capable of providing the above results while being uncomplicated in its design and construction. The device includes a housing having a pair of spaced-apart camming plates. Each camming plate has a pair of opposing camming contours formed therein so as to define two sets of spaced-apart camming contours. At one end of each camming contour is a recess so as to define two sets of spaced-apart recesses. A linkage member is disposed between the camming plates and includes a driven end adjacent one of the sets of spaced-apart camming contours and a driving end adjacent the other set of spaced-apart camming contours.

Abstract: A connection between a drive member and a driven member comprises a first nickel titanium alloy wire interconnecting the drive member and a rigid link and a second nickel titanium alloy wire connecting the rigid link and the drive member. Such a wire, when properly heat treated, has a high tensile and also a high compressive strength while at the same time the wire will bend readily if there is misalignment between the longitudinal movements of the drive and driven members. Thus the assembly functions as a two-ball joint drive line similar to that used in automobiles. A preferred usage is in driving the plunger of a syringe in a dosage metering system from a moving machine element where the syringe bore and direction of movement of the machine element may be slightly out of alignment. Wear of the syringe seals is reduced.

Abstract: A lock operator located between a backing plate and sliding cover includes pivot plate for activating and deactivating the main boltworks and a relocker, an overtravel stop assembly for sequestering the pivot plate to prevent relock, a spring braised knob for locking the pivot plate in the locked or unlocked position, a pin for locking the sliding cover, pivot plate and locking plate in the locked position and means for automatically activating/deactivating the overtravel stops assembly.

Abstract: The disclosure relates to high-voltage change-over switches that are used to apply high voltage alternately to two X-ray tubes. Each of the four switch devices constituting a change-over switch includes a fixed contact element connected to an input terminal of the high voltage and a movable contact element connected to an output terminal by a curved, flexible strip, the shifting of which is obtained by a hinged arm that is actuated by an insulator sleeve surrounding the strip. The rotation of the sleeve in one direction causes contact through a hole in the wall of the sleeve while rotation in the reverse direction causes the contact elements to move away from each other and gives rise to the interposition of the insulator wall between the contact elements at a distance. The disclosed device can be applied to radiology installations.

Abstract: A door operator for a reversibly operable door, such as a garage door includes a frame, a motor on the frame, a flexible drive member connected to the motor, and a carriage is mounted for movement along the frame. The carriage moves generally parallel to a portion of the frame and is attached to the door to open and close the door by movement of the carriage along the frame. The carriage can be selectively engaged and disengaged from the flexible drive member using an actuating member extending from the carriage. The carriage and the flexible drive member are engaged and disengaged upon successive motions of the actuating member in a direction substantially perpendicular to the direction of travel of the carriage.

Abstract: A balanced essentially vibration-free hand-grippable fluid powered reciprocating blade cutting tool intended primarily for cutting poultry, fish and meat for processing. The tool includes a hollow handle which functions as a motor housing. Fittings are provided for connecting the housing to a source of fluid under pressure and for exhausting fluid from the housing. A reciprocable cutting blade extends forwardly from the handle. A fluid actuated motor within the handle housing includes a pair of aligned piston assemblies of approximately equal weight. The pistons are reciprocable in opposite directions. The cutting blade is secured to one of these pistons. A control valve and fluid flow passages within the housing and associated with the fluid inlet fitting permits fluid to be directed alternately to the inner and outer sides of the pistons for causing the pistons to alternately move toward one another and away from one another. A manually operable trigger controls the flow of fluid into the housing.

Abstract: A diaphragm valve for high pressure use has a metal diaphragm which is actuated into and out of direct engagement with a valve seat by an air operator acting through a force multiplying lever assembly. The valve seat is confined by rigid interior and exterior sleeves while the sealing surface is contoured to have a concave configuration corresponding to the contour of the diaphragm in its deflected position. The air operator is provided with a stroke adjustment mechanism that is locked in adjusted position by a member that is generally accessible only when the operator is disconnected from the valve.

Abstract: A memory cartridge unloading system in which a memory cartridge inserted into a connector provided in a main body of an apparatus using a memory cartridge can be pulled out from the connector by use of a leverage mechanism. In the unloading system, the memory cartridge is moved in the discharge direction thereof by the leverage mechanism. In the leverage mechanism, the leverage thereof can be changed according to the positions of movement of the memory cartridge in the discharge direction, so that a first force can be generated until the memory cartridge is generated which can pull out the memory cartridge from the apparatus main body the second force being an amount necessary for a finger catch.

Abstract: A generally U-shaped guide carriage is linearly guided on a longitudinally-extending rail track by at least one circuit of roller balls carried by each of the depending flanges of the U-shaped guide carriage. Each ball circuit includes a linear load-bearing row and a linear return row of roller balls. The load-bearing balls bear against facing ball rolling tracks carried by the opposite sides of the rail track. A cross member is connected adjacent one end of the rail track and carries rolling track engagement faces for engaging the ball rolling tracks on the rail track. An entraining unit is connected to the guide carriage, and a linear drive is coupled between the cross member and entraining unit for driving the guide carriage along the rail track. In another embodiment, a common steel insert is carried by each depending flange of the U-shaped guide carriage and supports the load-bearing row or rows of the associated ball circuits.

Abstract: An apparatus for connection to a reciprocating saw changes the direction in which cutting takes place from the reciprocating direction of the saw to a different direction. A first push rod is connected to the saw bar for linear movement in the reciprocating direction of the saw. A second push rod having a saw blade connected thereto is arranged for linear movement in a direction different than the reciprocating direction of the saw. A transmission disposed between the push rods transmits the reciprocating movement of the first push rod to a corresponding reciprocating movement of the second push rod, thereby imparting a cutting motion to the saw blade. The reciprocating direction of the second push rod with respect to the first push rod can be either fixed or adjustable. Optionally, the apparatus can be pivotably connected to the saw so that the angular disposition of these elements with respect to one another can be adjusted as desired.

Abstract: An apparatus for supporting medical supplies which is ambulatory and provides improved load-support capabilities. A vertical standard is mounted upon an ambulatory base and includes a plurality of independent fluid or equipment hanger assemblies. Each hanger assembly is vertically movable and is capable of supporting substantial loads (e.g., 25 pounds). A pulley system is coupled to the hanger assembly and an engagement positioner. The pulley system transmits the selected vertical movement of the engagement positioner to the hanger assembly while concurrently reducing the mechanical force required to position the load suspended from the respective hanger assembly.

Abstract: A mechanism for finely adjusting the orientation and/or the position of a payload, characterized in that it comprises: a resilient mechanism constituted by at least one continuous ring (10); a payload support device (15) suitable for transforming deformation of the ring into rotation or into combined rotation and translation; a ring deformation mechanism (11) suitable for directly applying simultaneous deformation forces at two diameterically opposite points of the ring; and a device (14) for varying the orientation of the diametral line of action of the ring deformation mechanism, thereby enabling the orientation and/or the position of the payload to be adjusted finely or coarsely. The mechanism is applicable to the optical industry, to pointing antennas, etc.

Abstract: A shifting mechanism for a multi-speed manual overdrive (OD) transmission. A "flipper" reverses the action of the shift stick for the final stage shift fork to maintain progressive "H" or "HH" shift patterns yet engage a direct drive coupling as the next-to-last range and OD as the final engagement. The mechanism employs a quadrangular frame slidably received on two adjacent shift rails in a shift rail array. The frame has one side above the shift rail array notched to engage the shift stick end of an opposite side below the array. The flipper is pivotally mounted below the array with one end engaging a notch in the frame and the other end engaging the final stage shift fork so as to minimize bending stresses on the fork end and reaction loads of the sliding frame on the shift rails.

Abstract: A memory cartridge unloading system in which a memory cartridge inserted into a connector provided in a main body of an apparatus using a memory cartridge can be pulled out from the connector by use of a leverage mechanism. In the unloading system, the memory cartridge is moved in the discharge direction thereof by the leverage mechanism. In the leverage mechanism, the leverage thereof can be changed according to the positions of movement of the memory cartridge in the discharge direction, so that a first force can be generated until the memory cartridge is pulled out from the connector. Thereafter, a second force less than the first force is generated which can pull out the memory cartridge from the apparatus main body, the second from being an amount necessary for a finger catch.

Abstract: There is disclosed a pinch sealer drive mechanism for a form fill and seal machine, or the like, wherein a bi-directional rotary actuator is employed to rotate a crank with two oppositely disposed levers, each of which is linked to a slide. Thus, there are two substantially identical symmetrically disposed linkages consisting of a lever, a link and a slide, whereby the slide is caused to have a relatively low velocity at the extremes of its motion, thereby producing a smooth vibration free operating mechanism to which the heat seal bars or other pinch sealing apparatus may be attached. A preferred embodiment of the apparatus has a duplicate of the above described crank, lever, and link mechanism for the distant end of the slide, and the second mechanism is driven from and synchronized with the first by an endless belt drive to one of two sprockets fixed on a rotatable shaft and then from the second sprocket on such shaft to a sprocket connected to rotate the crank of the second mechanism.

Abstract: A tool head for moving a tool to a workpiece and applying an axial force thereto includes a grooved tubular spindle mounted on a fixed shaft for relative axial and rotational movement. The spindle is rotated by a timing belt transmitting power from a driver timing pulley. The timing belt is fitted around the timing pulley and grooved spindle with a pair of 90.degree. twists in the loaded and unloaded sections between the two pulleys. As power is applied to the timing pulley, the belt migrates toward the end of the pulley and the spindle closest to the unloaded section of the belt; and when a resistant torque is applied to the spindle the timing belt migrates to a stable position with respect to both the timing pulley and the grooved spindle and transmits torque and an axial force to the spindle.

Abstract: A device for positioning objects within a sealed vacuum chamber (112) comprises a stationay housing (114), which is sealingly attached to the vacuum chamber (112). Located within the housing (114) is a tubular body (158) capable of rotating and translating within the stationary housing (114) through the interaction of an outer magnet (116), which slides and rotates on the surface of the stationary housing, and an inner magnet (118), which is attached to the tubular body (158). A shaft (198) is located inside the tubular body, but cannot be shifted axially with respect to this body. The front end of shaft (198) extends into the vacuum chamber (112) and may carry a specimen or any other object to be treated or tested in the vacuum chamber. The shaft (198) is driven from an external drive mechanism (124). Rotation of the shaft can be converted into opening and closing movements of the jaws (218 and 220).

Abstract: A cropping mechanism for a surface mount machine is disclosed which cuts the feed tape supplying electronic components. The displacement of an actuator in one direction between end positions cycles the cropping blade from a start location to the cutting location and back to the start location. The actuator has a cam which rides in selectively configured slots defined in opposed, pivotally supported levers which support a pin received by the cutting element and controlling its displacement.

Abstract: A transfer robot for removing molded pieces provides a telescoping robot arm having a pneumatically activated gripping device mounted to a remote end. The robot arm comprises two tubes mounted coaxially inside a housing. The first tube is driven outwardly of the housing by a rodless cylinder drive; the second tube is mounted coaxially to the inside of the first tube and is itself driven by a rack and pinion arrangement which doubles the projecting speed of the second tube with respect to the projecting speed of the first tube. The robot arm is movably mounted to a cantilever rack which is itself rotatably mounted to a supporting stand.

Abstract: A device with one or more actuator racks carried by a housing for reciprocation and each meshing with a separate pinion gear having a non-circular central hole in which a complimentary coupling shaft can be removably received for rotation in unison with the gear(s). The pinion gears are carried and journalled for rotation in the housing by a pair of co-axial bushings with generally opposed and spaced apart axially projecting rims received in mating peripheral shoulders in the side faces of the gears. The gear teeth extend generally axially continuously between their side faces with the shoulders in their side edges. Preferably the radial extent of each shoulder is less than the radial extent of the teeth. When the coupling shaft is removed from the gears each pinion can rotate independently of the shaft and each other to initially position its associated rack at a desired location and when the shaft is inserted in the pinion gears they rotate in unison to simultaneously actuate the rack(s).

Abstract: In order to avoid energy losses, particularly in the case of actuating operations characterized by energetic cycles, it is suggested to insert a double-lever cam-and-roller transmission mechanism between a hydraulic accumulator and a hydraulic pressure consumer which mechanism has the effect that the accumulator pressure and the consumer pressure are always balanced. The consumer is therefore actuatable by means of slight control forces, the energy used thus remaining at a minimum. Thus, only the slight actuating energy of the control forces and the unavoidable hysteresis loss of the system need to be compensated for.

Abstract: An electromagnetic reciprocating pump having a piston electromagnetically moved at least in one direction is comprised of a frame having attached thereto an electromagnet which operates the piston, an inner cylinder whose one end side in the axial direction is secured to the frame and the other side thereof is closed and having the piston accommodated therein such that the piston can be reciprocated therein, an outer cylinder whose one end in the axial direction being secured to the frame and coaxially encircling the inner cylinder so as to form a working chamber between it and the inner cylinder, an outer piston accommodated within the working chamber so as to freely reciprocate and varying a capacity of working chamber, spring means being contracted and expanded in accordance with the movement of the outer piston, and magnetic coupling means for magnetically coupling the inner piston and the outer piston.

Abstract: An adjustable rolling cam slider which has a cam sliding block displacing vertically to link with a horizontal sliding block by two ball joints, and a link with a fixing block to get in touch with and drive the cam sliding block to displace downward, consequently cause the horizontal sliding block to slide horizontally upon lowering of the main shaft of the punching press. Steel balls are used between the sliding block and sliding rail of a sliding device for rolling of the horizontal sliding block, and two buffer reset devices are designed each with a spring which can have its degree of compression adjusted to adjust the acting angle between the cam sliding block and the horizontal sliding block for adjustment of acting force and stroke to form a cam slider which can convert vertical action of punching machine to horizontal action.

Abstract: The disclosed lever-type gear works on a variable transmission ratio, with the degree of transmission being respectively dependent on the position of the levers and the position of the roller element between the levers. According to a preferred arrangement, the gear can be so designed as to provide a state of indifferent equilibrium once a force F.sub.P is applied to the associated lever by a rod located on the driving side, which force F.sub.P changes along with the stroke s.sub.p of the rod while a constant force is applied to rod applying force to the other lever, irrespective of the stroke s.sub.M thereof.

Abstract: A cut-off die set of the double cut type, in which sections of tubing are successively severed from a length of tubing, utilizing a notching cut followed by a severing cut. A rack and pinion assembly is used to transform the vertical reciprocating motion of the upper and lower platen into the horizintal reciprocating motion used for the notching stroke. The rack and pinion assembly comprises a rack mounted to the upper platen and a gear sector mounted to the lower platen, the gear sector includes a drive roller which engages a cam track on the cross slide. As the upper platen and lower platen are vertically reciprocated, the rack member causes the gear sector to rotate, sliding the drive roller through an arcuate path. Movement of the drive roller through the arcuate path causes the cross slide to move in a reciprocating manner in relation to the reciprocating motion of the upper and lower platens.

Abstract: The invention relates to a cam control mechanism of a carriage in a flat knitting machine capable of controlling vats with different heights from the carriage depending on the requirement, without having to mount plural solenoids on the carriage for controlling vats with different heights on the jacks for composing the knitting needles in a flat knitting machine.

Abstract: A jig-boring device, comprising an axle barrel which connects with bottom plate and is sheathed with lower gear, fixed support, upper gear and cover plate; a circular bottom plate connected to the bottom of the axle barrel; a lower gear placed on bottom plate sheathing the axle barrel; a fixed mount placed on lower gear sheathing the axle barrel; an upper gear placed on fixed support sheathing the axle barrel; a cover plate placed on upper gear sheathing the axle barrel; a lock nut which screws to the top outer periphery of the axle barrel; two pairs of measuring staffs which connect to two pairs of measuring staff brackets respectively; and two pairs of measuring staff brackets, placed symmetrizing each other on the bottom plate and fixed support respectively, which can measure out the abscissa and vertical coordinate of a desired bore center position about a work object.