Abstract: A fuel injection pump of the reciprocating plunger type has a plunger having a head engaged by a tappet assembly. The tappet assembly includes a roller engageable with a cam lobe of a cam to impart inward movement to the plunger. Outward movement of the plunger is effected by a lever assembly having a forked end engaging the head and a roller for engagement with a cam lobe.

Abstract: An angularly configured bracket is mounted at one end portion for pivotal adjustment in a sewing machine into a position of engagement at another end portion with fixed machine structure. A fastener extending through a slot in the bracket while the bracket is so adjusted secures the bracket to the upper end of a fixed post having a rotatable work feed controlling cam thereon, and so stabilizes the post against distortion by a spring biased cam engaging follower.

Abstract: A cylinder (3) is positioned to rotate on a fixed axle (1) in such a way that several leakproof chambers (3B, 3D) are formed: a second, longer cylinder (4) is positioned to slide along the first (3) and to turn on the fixed axle (1) in such a way that several leakproof chambers are formed (4A, 4B). Communicating pressurized fluids into the various chambers makes the cylinders (3, 4) turn a distance proportionate to a value x, and can make the second cylinder move axially along the first cylinder a distance proportionate to another value y; these values x and y being derived from several variables and sensors (10a to 10d) "read" the surface contours of the second cylinder (4), representing, for example, a function f (x,y).

Abstract: A spring-operated mechanism for actuating a switch gear, etc. comprises a cam member secured to a crankshaft and adapted to be moved thereby. Cam grooves are formed in the cam member such that the distance from the center of the crankshaft is smallest at the middle portion of the groove and progressively increases towards the extremities of the groove. A rod is provided with a pin at one end adapted to be rolled at each end within the cam grooves, and at the other end the rod is provided with a spring support. A stationary member is provided with guide elements to cause the rod to move linearly, and a spring is disposed between the stationary member and the spring support, whereby the spring is adapted to store compressive energy when the crankshaft is rotated through a predetermined angle by a driving source, and, through a further revolution of the crankshaft, the spring releases the stored energy to accelerate the revolution of the crankshaft.

Abstract: An improved cryogenic refrigerator having a drive mechanism suitable for use with gap or clearance seals is disclosed. The drive mechanism includes two reciprocating members, e.g. piston and regenerator/displacer, driven by a common rotating drive shaft. The regenerator/displacer portion of the drive shaft includes a roller at one end in engagement with a rod base plate for driving a rod connected to the regenerator/displacer and a spring for returning the regenerator/displacer simultaneously with the withdrawal of the drive shaft. The piston portion of the drive shaft is connected to a first end of a hollow body. The second end of the hollow body which is opposite the first end has the piston rigidly affixed thereto. The hollow body has a portion adjacent the first end supported by a guide whereby the piston is substantially isolated from side force loads during reciprocation.

Abstract: A reciprocable plunger fuel injection pump includes a plunger reciprocable in a bore. The plunger is urged outwardly by a spring which engages a spring abutment. The abutment carries a thrust member which engages the end of the plunger and in use is engaged by an actuating member such as a cam. The thrust member is held within a recess in the abutment by a resilient member. The thickness of the thrust member can be selected during assembly of the pump to the associated engine.

Abstract: A control linkage has levers for actuating the throttle lever of a carburetor and a primer pump. A slide actuator has cam grooves engaging ends of the levers to actuate the levers in response to movement of the slide actuator. An adjustable linkage is provided on the end of the lever to allow adjustment of the linkage without the use of tools. The adjustable link has an adjustment arm formed integrally with the lever and ratchet teeth on the arm and lever engage to allow adjustment.

Abstract: In a printer in which a shuttle and a counterbalancing mass are driven in opposing reciprocating fashion by a rotating, generally oval-shaped cam, the cam followers which couple the shuttle and the counterbalancing mass to the cam are castered to prevent skewing of the cam followers relative to the cam. Each of the cam followers is disposed between and rotatably mounted on a pair of opposite arms extending outwardly from a generally planar base of a castered yoke assembly, the planar base being pivotally coupled to a supporting member therefor which is either coupled to the shuttle or forms a part of the counterbalancing mass. In a first embodiment the pair of opposite arms extend from the planar base toward the cam so as to dispose the cam follower between the pivotal mount of the yoke assembly and the cam.

Abstract: In an actuating device for a lens assembly, the lens system of the assembly is mounted in a lens holding member which must be axially moved for focusing the lens assembly. In order to effect axial movement of the holding member, an operating member is fitted on the outer diameter of a cylindrical lens barrel of the assembly to be rotatable about the optical axis of the assembly, with the operating member having an inner peripheral surface wherein there is formed a cam recess for controlling the degree of axial movement of the lens holding member. A cam follower member mounted on the lens holding member is fitted in the cam recess of the operating member and rotative motion of the operating member is converted into axial motion of the lens holding member.

Abstract: The mechanism comprises a rectilinearly movable roller guide which at its upper end can be coupled to the plunger of the fuel pump and in the lower end of which an arm is journalled by means of a pivot pin. The arm supports a follower roller which is held in contact with an actuating cam on the rotating control shaft of the engine. To the arm there is secured a pin engaging in a vertical guideway which can be moved horizontally so as to pivot the arm between two end positions each corresponding to one direction of rotation of the engine. Each end position is defined by the mutual engagement, under the influence of the force acting on the follower roller, between two abutment surfaces provided on the arm and the roller guide, respectively.

Abstract: The rocking lever for a cam mechanism presents a hollow box-type structure and consists of a modular base piece provided with the trunnions and with the cam follower rollers adapted to cooperate with the cams. The modular base piece presents two connection surfaces, arranged at 90.degree. with respect to each other, and adapted for the fastening of modular appendix pieces. The said modular appendix pieces can be secured in a removable and changeable manner to the modular base piece.

Abstract: An improved expanding shoe drum brake (10) is provided. The brake includes a shaft-like mounting structure (42) for retaining the hook ends (40) of a heavy duty brake return spring (28). The retaining assembly includes a fixed portion (44) and an axially movable portion (46). The axially movable portion is normally abutting with the fixed portion but may be selectively axially moved away therefrom for assembly and disassembly of return spring (28) from the brake assembly (10).

Abstract: A pneumatic piston and cylinder assembly is preset by means of a 3-way regulating valve to exert a balancing force on a blockade arm in a retracted position. The arm is coupled via a linkage to a cam follower which rides on a rotary cam. The arm pivots in response to motion of the cam. When the cam causes the arm to pivot away from the retracted position to an advanced position, the arm overcomes the preset balancing force and causes the piston to retract gradually as air is bled to atmosphere from the cylinder via the valve. At the end of the stroke of the arm, the diminished air pressure in the cylinder provides a cushion to prevent bounce of the arm. As the cam causes the arm to reverse its stroke and pivot back to the retracted position, air is gradually admitted to the cylinder via the valve, thereby extending the piston and assisting movement of the arm.

Abstract: A device (10) to control the position of a valve (12) in relation to the position of a unidirectionally rotating member (22) includes the use of a valve drive wheel assembly (24) which is movable in a reciprocating rotational manner, a flexible arm assembly (23), and a flexible rod assembly (25). The flexible arm assembly (23) is in operative association with the unidirectionally rotating member (22) and the valve drive wheel assembly (24) for driving the valve drive wheel assembly (24) in rotational reciprocation as the unidirectionally rotating member (22) rotates. Flexible rod assembly (25) linearly reciprocates the valve (12).

Abstract: In a labeling machine comprising a machine frame (1), a turret (2) in said frame, a concentrically disposed gear (12) carried by said turret for rotation of said turret, a plurality of turntables (3) carried by said turret, a drive (8,9) mounted in the machine frame, a pinion (10) driven by said drive and driving said concentrically disposed gear and turret, an infeed starwheel (4) and an outfeed starwheel (7) each meshing (13,14) with the concentrically disposed gear, and a labeling station (6) driven by a pinion (15) meshing with the turret gear, the improvement which comprises providing each gear (13,14) of the infeed and outfeed starwheels (4,7), of each pinion (10,15) of the drive (8,9) and of the labeling station (6), and any further pinions (18,20) meshing with the gear (12) of the turret (2) and driving, in synchronism with the turret (2), other mechanisms mounted in the machine frame, with a hub (42) a toothed ring (43) and a damping element (41,47-52) between each hub and toothed ring so as to isola

Abstract: A roller bearing is provided with a plain bearing portion which rubs against a bearing support surface to provide bearing positioning thrust and location.

Abstract: A shift mechanism for a two-speed countershaft type transmission is operable to move the shift rail in response to a rotary input drive motor. The shift mechanism includes a control mechanism which ensures that the rotation of the drive motor will stop when the neutral position is effected during a gear interchange prior to completion of a shift so that normal gear synchronizing will occur. The control mechanism includes a rotatable plate having a slotted portion which includes stop surfaces at the neutral position. The stop surfaces are engaged during gear interchange by a pin member which must be selectively moved prior to completion of the gear interchange. Selective movement of the pin member is controlled by a solenoid mechanism.

Abstract: A device for focusing an optical system which consists essentially of a guide cylinder and a coaxial tube guided inside or onto the cylinder and containing at least a portion of an optical system. The guide cylinder and the tube are relatively displaced by a rotational motion converted into a linear motion for the purpose of focusing.The relative displacement between the guide cylinder and tube components (1,2) of the device are produced according to principles practised with ball thread spindles. For complying thereto each component is provided with a guide groove (3,4) helically winding around the axis of rotation (5) of each component (1,2). One of the components (1,2) is provided with a return channel (6) connecting at least two consecutive turns of the guide groove (3).

Abstract: A piston and cylinder mechanism wherein the cylinder moves relative to the piston and the cylinder has a cam follower extending outwardly therefrom for engaging a cam track, the cylinder having some lubricant therein. A cam follower shaft is mounted in the base of the cylinder and has a cam roller thereon. Conduit means is provided in the base and the shaft providing communication between the inner surface of the cam roller and the interior of the cylinder to provide for lubrication of the roller.

Abstract: A manual shift transmission having multiple input and output portions is provided with a control having input and output shift rails. A laterally movable control shaft extends axially through cutouts in respective shift rails and carries cams adapted to cooperate with cam follower surfaces on corresponding cutouts to effect rectilinear movement of the shift rails upon rotation of the control shaft. The cams are arranged on the shaft so that the shaft may be positioned to place respective cams in register with the input and output shift rails while all other cams are out of register with the rail cutouts. The shift movement of respective output and input shift rails is overlapped during the rotation of the control shaft to decrease the throw of the shift lever.

Abstract: The invention relates to a reciprocating member.The movable member is integral with one of the ends of a spring plate, whose other end is secured to a fixed frame, the said spring plate being held under pressure by way of a support member such as a cam driven in rotation.The invention finds an application in machines used for the manufacture of plastic bags.

Abstract: This disclosure is directed to an internal combustion engine having a plurality of double oscillating pistons disposed around the interior of the housing, each side of each oscillating piston having a cam arm which applies the force of combustion to a cam gear. The cam gear has a cam surface on its exterior which engages the cam arm and a ring gear on its interior which engages a plurality of planetary gears which in turn drive a drive shaft having a sun gear.

Abstract: A torque cam assembly for variable speed belt drives having a driven sheave with an axially slidable flange, in which a collar is mounted on the shaft of the sheave and has a plurality of cams thereon, and a cam follower structure having generally axially protruding members is mounted on the slidable flange of the sheave for cooperating with the cams on the collar. Wear elements are disposed on the members and are adapted to contact the cams on the collar. Two sets of cams may be used with the cams of one set facing in one direction and the cams of the other set facing in the opposite direction, and a pair of wear elements is provided on each of the members for engagement with the facing cams. Each wear element is provided with a distinct protrusion of a generally conical shape to provide the initial contact area with the respective cam surface, for creating substantially equal load sharing relationship between the various cams.

Abstract: In a punching and bending machine the driving mechanism 10 for a reciprocating a tool slide 50 comprises a pair of cam plate and push rod arrangements 20, 38 and 22, 58 one for the working stroke and the other for the return stroke. They move in an oil filling contained in a hermetically sealed housing 28. The contacting ends of the push rods 38, 58 are provided with carbide tippings 46, 60 and the peripheral surfaces of the cam plates 20, 22 are hardened or nickel-plated. The driving mechanism can be used in high speed machines making at least 2000 strokes per minute.

Abstract: A single-operation cam mechanism includes a cam body with a cam surface extending along the body from an entrance location to an exit location. A cam follower is retained in a waiting position adjacent a part of the cam body at which the exit location is found. When the cam follower is moved free of the retainer, a spring forces the cam follower to the part of the cam where the entrance location is found. Then, as the cam rotates, the cam surface engages the follower and forces it back through the exit location and past a resilient trap to the waiting position. The trap snaps shut after the follower has been forced past it, and the surface of the trap then prevents the follower from moving back into engagement with the cam surface except by way of the entrance location.

Abstract: A reciprocable plunger fuel injection pump has a plunger extending from a pump barrel. A spring abutment is mounted at the outer end of the plunger and carries a thrust member engageable with the radiussed end of the plunger and by an actuating device such as a cam. A ring is carried by the plunger for engagement with an annular surface in a bore in the abutment through which the plunger extends. The abutment and the thrust member can rock about the end of the plunger to absorb side thrust applied by the actuating device.

Abstract: A vacuum pump having a cam actuated spring-biased pumping element and a gear for rotatably driving the cam has a torque counterbalancing spring and plunger device engaging the cam in a position out of phase with the pumping element and arranged to apply counterbalancing torques that prevent the application of torque reversals to the gear and thus avoid gear oscillation and chatter.

Abstract: This invention comprehends an improved means for providing a reciprocating motion for the spool of the spinning style fishing reel. In the normal rewind mode of operation, the spool oscillates back and forth relative to the line winding means. In this reel, the oscillating motion is produced by a cam-yoke arrangement mounted within the housing and unique in the fishing reel art.

Abstract: A cam and follower arrangement in which the cam consists of a track carried by a rotatable member. The track has one or more abrupt directional transitions (17) and the follower (17) is biassed to engage one wall or the other (21) of the track (21) appropriate to the direction of rotation of the member by means including a direct-current electric motor operated in a stalled condition. The arrangement may be employed in a monochromator for spectrophotometric apparatus to drive a filter-holder to position one of a number of optical filters arranged in the incoming beam of light.

Abstract: When machine elements having a large mass are indexed, i.e. subjected to short, quick rotating movements, very great acceleration and deceleration forces must be transmitted via the driving means of the machine. Due to vibrations occurring, increasing the stresses on the driving means, the driving means must be dimensioned accordingly. The present invention provides a method and an arrangement for the compensation of the forces applied and thus for reducing the stresses which occur. This is performed by combining the indexing machine element with a cam disc which is contacted by a number of spring-loaded cam followers, whereby the cam disc has such a shape that the cam follower decelerates and accelerates the cam disc following the desired movement pattern of the machine element.

Abstract: The invention relates to a cam for actuating the valves of a reciprocating machine, the cam causing the valve to be opened via a flat-faced sliding-contact cam follower against the force of a closing spring.

Abstract: A cam assembly is disclosed which is used for the selection of different track positions for a magnetic tape head in a magnetic tape player/recorder. The tape track position of a magnetic tape head is determined by the position of a cam follower member which is selectively positioned with respect to a reference surface by selectively positioning a number of different diameter ball bearings between the cam follower member and the reference surface. Specifically, a solenoid actuated armature causes the linear movement of pawl members which in turn rotate a ratchet wheel member. The ratchet wheel member forms part of a cam apparatus that includes four ball bearings of different diameters. Sequential rotation of the ratchet member selectively positions ball bearings of different diameters between a non-rotatable reference surface and the cam follower member.

Abstract: A cam follower including an arm pivotally movable about an axis which is perpendicular to the axis of rotation of an actuating cam is provided with a shoe that pivots on the arm to maintain line contact with the cam as the cam is rotated.

Abstract: The profile of the cam, of a cam-actuated, spring-return mechanism of the type which includes a cam-shaft, a cam-follower, a cam-follower-shaft and spring means having a given spring rate and initial preload, is shaped in such a manner, that for a particular spring means, the torque output of the cam-shaft can be tailored to meet the torque requirements of a driven device, for the torque output can be constant throughout the return travel of the cam-induced displacement of the spring means to a compressed condition beyond its initial preload, whereby an infinite number of torque output characteristics may be obtained by altering or preselecting the cam profile only, while utilizing, unchanged, the other components of the mechanism.

Abstract: A switching lever mechanism for operating a switching lever between two end positions comprising first and second laterally spaced apart cams, a follower lever physically mounted between its ends and including one end with a roller follower disposed between the cams. An opposite end of the follower lever is connectible to a member for shifting the member. A socket is formed on the follower lever between the roller follower and the pivotal mounting thereof and a bolt having a spherical head is pivotally mounted on the socket. A bracket mounted in a stationary position alongside the follower lever is provided with a set screw having a head portion. A sleeve is pivotally mounted on the head portion and carries the bolt. A spring biases the sleeve and bolt outwardly to hold the follower lever in either of its two end positions.

Abstract: A roller hydraulic valve lifter or similar cam follower mechanism wherein the follower of such an assembly or mechanism is provided with a pair of spaced apart struts to receive the opposed free ends of a roller shaft carrying a cam follower roller. Each free end of the roller shaft is provided with opposed flats parallel to the axis of the shaft to define abutment shoulders which engage the struts to limit axial movement of the roller shaft in the follower. Each strut is provided at its free end with a tang that is bent over to partly encircle a free end of the roller shaft whereby to retain the cam follower roller and roller shaft in unit assembly with the follower.

Abstract: A simplified linkage and cam member having first and second cam surfaces for interacting with a bail to drive said bail between first and second limits is provided. The cam surfaces restrict the movement of the bail when the bail is at either limit. However, when the bail is intermediate of the limits, the relationship of the effective portions of the cam surfaces allow increased bail movement for a given position of the cam member and associated cam surfaces. The structure is particularly well adapted for actuating a bail from a first to a second position wherein forces other than those applied by the cam also act on the bail; and at a critical bail position, the other forces take control and urge continued motion of the bail independent of the cam member.

Abstract: Motive unit carries stretch-wrap unit around stationary material to be wrapped. Guide ski follows around the material to be wrapped and controls the steering of the motive unit so that the material is wrapped into a unit.

Abstract: A fuel pumping apparatus includes a housing in which is located a plurality of reciprocable tappet assemblies including tappet bodies. The tappets carry rollers for engagement with cams respectively. In order to prevent rotation of the tappet bodies adjacent pairs of the tappet bodies are provided with mutually facing and mutually inclined flats which are engaged by wedge-shaped guide members. The flats and guide members permit reciprocable movement of the tappet bodies but prevent rotation thereof.

Abstract: A fuel injection pump with roller shaft for internal combustion engines, in which the roller is loosely journalled in a substantially cylindrical opening provided in a shaft or push member actuated in upward direction by a cam and in downward direction into its lower dead center position by a spring. The roller shaft or push member is at that end portion which is adjacent the roller provided with supporting surfaces by means of which the roller shaft when occupying its lower dead center position rests upon shoulders of a camshaft at opposite sides of the above mentioned cam. The diameter of the camshaft substantially equals the diameter of the high level portion of the cam. When the roller shaft rests on these shoulders, a gap is formed between the wall of the opening in the roller shaft and the roller so that sufficient lubricant can collect in the gap to assure proper lubrication of the roller, even when the roller shaft is under great load.

Abstract: A decompression device for internal combustion engines to enable easier starting, comprising a camshaft operated balancer acting on a valve of the engine, a rotatable decompression cam acting on the balancer, and a rotation device to rotate the decompression cam during starting, the balancer and the rotation device being designed to enable minimum space requirement and symmetrical motion of and forces on the decompression mechanism.

Abstract: Rotatable article supporting plates with cabinet doors attached mounted on a rotatable central supporting shaft, the shaft being suspended, at least partially, from a mechanism for adjusting the vertical alignment of the doors relative to the cabinet door frame. The mechanism may be biased to maintain the doors in a preferred rotational position, e.g. a closed door position relative to the door frame. The preferred rotational position of the mechanism may also be adjusted to rotationally align the doors in their closed door position in the door frame. The mechanism includes a cam gear disposed in a housing which rotates on a sawtooth track in response to the adjustment of a threaded member to raise or lower the shaft and doors.

Abstract: A limited rotation roller tappet having an aperture and a slot formed in it. A locking bar having a narrow end portion and a shoulder portion prevents rotation of the tappet. The end portion of the locking bar is adapted to pass through both the aperture and the slot while the shoulder portion will not pass through the aperture. The locking bar preferably has a second narrow end portion and is held in place by a second similar roller tappet adjacent to the first having a slot through which the second end portion passes and an aperture through which the shoulder portion will not pass.

Abstract: An optical lens grinder device including a main base and a lens carriage pivotally slidably connected along one edge to the base. A first motor mounted on the base drives a pair of closely spaced apart grinder wheels, one for shaping and sizing a lens blank, the other for peripherally beveling the edges thereof.

Abstract: A combined control device for the operation of coke oven batteries which includes both a part for converting from heating with a strong gas to a lean gas, and vice versa, and a part for switching the regenerative heating system from one group of heating flues to another, comprises a support frame on which is mounted a rotary switching control cylinder and a rotary conversion control cylinder in end-to-end relationship and for rotation around the same axis. The rotary conversion control cylinder is displaceable in respect to the rotary switching control cylinder, and the two cylinders may be coupled together for rotation together or the conversion cylinder may be shifted axially so that it will not rotate with the switching control cylinder. The switching control cylinder is driven at one side from a motor driven transmission which also permits the manual operation of the cylinders.

Abstract: A roller type cam follower carries a floating guide plate having an end thereof extending below the roller to be slidably received in a slotted groove provided in the cam on which the roller rides whereby to prevent rotation of the cam follower.

Abstract: A spring-loaded cam plate is pivotally mounted on an outer inclined surface of a brake pawl having at its inner surface a tooth, the cam plate being pivotable relative to the brake pawl along the outer inclined surface. A driver operable control rod is formed with a cut out portion forming an wedge surface including a large inclined first section near the bottom of the cut out portion and a small inclined second section. The first and second sections are selectively engageable with a free end of the cam plate upon axial movement of the control rod to urge the brake pawl to disengage from or engage with the parking gear.

Abstract: An anti-theft device having a pivoted lever, a cable connected to one end of the lever and controlling a fuel injection pump, the other end of the lever engaging a cam integral with the cylinder of a lock so that when the cylinder is turned by a key in the lock the cable controls the opening and closing of the fuel injection pump.

Abstract: A cam follower roller bearing or yoke roller bearing in which there is a stud or inner race surrounded by inner rollers on which an outside roller is mounted, with the outside roller and inner rollers retained in position by some form of retainers on the ends, and annular grooves toward the ends of the inside of the outside roller in which grooves there are annular seals having in cross section an intermediate portion parallel to the longitudinal axis of the bearing and a radial outwardly extending portion at the longitudinally outer end of the intermediate portion and a radial inwardly extending portion at the longitudinally inner end of the intermediate portion, with the intermediate portion being held with interference fit on the longitudinally inner portions of the outside of the retainer, the outwardly extending radial portion loosely fitting against the outer wall of the groove, and the inwardly extending radial portion being between the inner end wall of the retainer and the corresponding end wall of t

Abstract: A parallel indexing cam structure has a locking cam and a pair of further cams which are rigidly secured to an input shaft at predetermined angular positions relative to each other, and a cam follower device is rigidly secured to an output shaft parallel to the input shaft and has a plurality of spider plates and three sets of cam follower rollers. During the dwell period, the locking cam is contacted by two rollers of one set of the cam follower rollers while the further cams are contacted by only one of the rollers of the respective remaining sets. The locking cam has a larger profile circle at the dwell position during the dwell period than the further cams, thereby blocking the rotation of the output shaft with increased accuracy and stiffness during the dwell period.