Abstract: A pair of concentrically mounted drive shafts are rotatable with respect to one another. Each drive shaft engages and drives at least one endless chain upon which lugs are mountable. A driven power shaft directly drives one of the drive shafts. The other drive shaft has a coaxially-mounted gear wheel that intermeshes with a pinion wheel that is rotatable and is interconnected with the driven power shaft such that when the pinion wheel is inhibited from rotating power is delivered from the driven power shaft through the locked pinion gear to the gear wheel and drive shaft affixed thereto.

Abstract: A chain and sprocket system includes a plurality of chains and phased or offset sprockets. The transmission system includes a random or hybrid chain with the offset sprockets. The timing system can include single or dual overhead camshafts, with phasing of the crankshaft sprockets and camshaft sprockets.

Abstract: A chain and sprocket system includes a plurality of chains and sprockets. The system includes a crankshaft, an idler shaft and two overhead camshafts. The two sprockets on the idler shaft that connect by chain to drive the camshafts are phased or offset with respect to each other to alter the impact and chordal action generated noise. These idler camshaft sprockets and the idler sprocket of the crankshaft are all manufactured separately and then placed together on a spline or hub. In this way, the idler sprocket assembly consists of four parts, which eases manufacture and assembly.

Abstract: A chain and sprocket system includes a plurality of chains and phased or offset sprockets. The transmission system includes a random or hybrid chain with the offset sprockets. The timing system can include single or dual overhead camshafts, with phasing of the crankshaft sprockets and camshaft sprockets.

Abstract: A phased chain and sprocket assembly is provided in which the pitch length of the chain is not matched to the pitch length of the sprocket. Specifically, the chain link pitch length is approximately twice the pitch length of the associated sprocket teeth. By providing two chains in side-by-side, but offset relation, a phased chain and sprocket assembly can be achieved without the need for circumferentially offset sprockets.

Abstract: Apparatus especially useful in internal combustion engines for adjusting the timing and including a shaft having a longitudinal axis and mounted for rotation about said axis with a circular drive member carried by the shaft. An adjustable key assembly is located between the shaft and the drive member for conducting drive forces therebetween while permitting selective relative angular adjustment. The adjustable key assembly includes a key member having a first end pivotally engaged with one of the shaft and drive member and a second end slidably engaged with the other of the shaft and drive member. The second end of the key member and the other of the shaft and drive member include cooperating inclined surfaces for producing relative angular movement between the shaft and the drive member when the key member is selectively pivoted about the first end.

Abstract: A control member of a torque transmitting apparatus is composed of pins, a retainer, a first and a second arc-shaped gears which form a single ring gear together, a piston, first springs and second springs. The first and second arc-shaped gears are biased respectively by the first and second springs in opposite directions so that the splines of the first and the second gears are deviated from each other while they are in mesh with corresponding splines of a sprocket sleeve and a cam sleeve. As a result, rattling noise due to backlash of the splines is suppressed even when torque change is transmitted to the sprocket sleeve.

Abstract: A chain and sprocket system includes a plurality of chains and phased or offset sprockets. The transmission system includes a random or hybrid chain with the offset sprockets. The timing system can include single or dual overhead camshafts, with phasing of the crankshaft sprockets and camshaft sprockets.

Abstract: A chain and sprocket system includes a plurality of chains and phased or offset sprockets. The transmission system includes a random or hybrid chain with the offset sprockets. The timing system can include single or dual overhead camshafts, with phasing of the crankshaft sprockets and camshaft sprockets.

Abstract: A non-backlash toothed wheel mechanism comprises, an internal gear, and an external gear mating with the internal gear wherein at least one of the internal gear and the external gear has a circumferentially arranged gear teeth array and at least two gear parts each of which has gear teeth forming a part of the circumferentially arranged gear teeth array, a positional relation between the gear parts is changeable, and the mechanism further comprises elastic means for urging one of the two gear parts relatively to another one of the two gear parts to change the positional relation between the gear parts so that each of the gear parts mates with another one of the internal gear and the external gear to reduce a backlash between the one of the internal gear and the external gear and the another one thereof.

Abstract: A chain and sprocket system includes a plurality of chains and phased or offset sprockets. The transmission system includes a random or hybrid chain with the offset sprockets. The timing system can include single or dual overhead camshafts, with phasing of the crankshaft sprockets and camshaft sprockets.

Abstract: A device, such as a printer or plotter for driving media, has sprocket wheels with sprockets engaging sprocket holes at the edges of the media. The sprocket wheels are driven via a drive belt. In order to adjust the relative angular position of one of the sprocket wheels, rollers are mounted on an adjustment lever to separately engage two courses of the drive belt. Pivoting of the lever effects the adjustment of the lengths of the two courses of the belt. During an adjustment procedure, one sprocket wheel is held fixed, and the lever is pivoted to effect the angular displacement of the other sprocket wheel.

Abstract: The chain drive described in the present disclosure, instead of using a single sprocket wheel, saves space by making use of two or more sprocket wheels coupled together by slip-free means, each sprocket wheel having only a small number of low sprockets. The number of sprocket wheels, the center-to-center distance between the sprocket wheels, the tip diameter of the sprocket wheels, and the phase offset of the sprockets as between the sprocket wheels which form a set of such wheels are all so matched that one sprocket of one sprocket wheel always engages in the chain in rhythmical sequence, so that all the sprocket wheels rotate smoothly when the chain moves evenly.

Abstract: A timing gear device includes a first rotatably supported shaft, a first gear, having a predetermined number of circumferentially spaced teeth, engaged on and carried by the first shaft and a second rotatably supported shaft spaced from the first shaft. A second gear having a predetermined number of circumferentially spaced teeth is engaged on and carried by the second shaft. The first gear and the second gear are engaged with each other. A timing device is provided for changing the rotative position of the second shaft and the second gear in relation to the first shaft and the first gear. The timing device includes a single primary keyway in one of the second gear and the second shaft and a plurality of secondary keyways in another of the second gear and the second shaft. The secondary keyways have differing configurations. A key is provided in the primary keyway. The key is engaged in a predetermined one of the secondary keyways to establish a driving engagement between the second shaft and the second gear.

Abstract: An adjusting device for varying a phase angle between a drive shaft and a driven shaft of an endless chain drive extending between a sheet feeder and a printing unit of a printing press and being formed with a tight side and a slack side defining an inner space therebetween includes a first tensioning element for applying a tensioning force outwardly from the inner space against the slack side of the endless chain drive, a second tensioning element for applying a tensioning force outwardly from the inner space against the tight side of the endless chain drive, a slide carrying the first and the second tensioning elements and being displaceable substantially perpendicularly to a plane in which the drive shaft and the driven shaft are disposed, and one additional chain tensioning device for applying a force from outside the endless chain drive against the slack side thereof, the additional chain tensioning device being adjustably movable with respect to the first tensioning element.

Abstract: A clutch mechanism for a printing press (10) having a shaft (14) having a cylindrical outer surface (36) adjacent one end (28) of the shaft (14 ). The mechanism has a device (15) for rotatably driving the shaft (14) and a drive member (32) having a cylindrical bore (34), with the one end (28) of the shaft (14) being received in the bore (34) of the drive member (32) such that the drive member (32) rotates on the shaft (14), with the drive member (32) having a clutch surface (30). The mechanism has a device (26) and (23) for coupling the shaft (14) with the clutch surface (30) of the drive member (32).

Abstract: A device for adjusting a mutual phase relationship of respective rotational angles of two drive wheels, which are mounted on drive shafts parallel to one another and connected by a continuous transmission drive member to one another, the transmission drive member being deflectable so that the drive wheels are angularly set relative to one another, a first spanner being engageable with a slack strand of the transmission drive member, includes an adjusting lever for deflecting the tight strand of the transmission drive member, the adjusting lever being mounted swivellably with respect to a swivelling axis, and carrying the first spanner, and an adjusting device for swivelling the adjusting lever with respect to the swivelling axis and a spreading device including a guiding system for the second spaner, a spinning device for pressing the second spanner against the slack strand of the transmission drive member, and a counter-bearing for the spring device, the spreading device being braced against the adjusting le

Abstract: A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt means. A first belt means is interconnected at one end of the engine between the crankshaft and the exhaust camshaft. At the other end of the engine the intake camshaft and the exhaust camshaft are connected by a second belt means for rotating the intake camshaft from the rotational drive supplied via exhaust camshaft. Idler arms are positioned for controlling the path and tension in the second belt means for varying the timing of the intake camshaft relative to the exhaust camshaft. A motor means operates to position the idler arms through a positioning cam means.

Abstract: A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt. First and second idler arms, each having an idler wheel connected thereto, are independently pivoted around a common pivot point by means of a pair of positioning cams operatively connected to an electric stepping motor. The motor is controlled from an electronic control unit which receives signals indicating the engine operating characteristics and through a look-up table steps the positioning cams which in turn pivots the idler arms to rotate the intake camshaft relative to the exhaust camshaft thereby changing the intake valve timing.

Abstract: A mechanism for use in linear friction welding has a drive-shaft (10) rotatable about a first longitudinal axis (12). An eccentric portion (10A) for locating a cam member (18) has a second longitudinal axis (16) spaced a distance d from the longitudinal axis (12) of the drive-shaft (10). The cam member (18) has a third longitudinal axis (20) spaced distance d from the second axis (16) of the cam member (18). A connecting-rod (24) is located via a big-end bearing (26) on the periphery of the cam member (18). When the drive-shaft is rotated with the third axis (20) of the cam member (18) displaced from the longitudinal axis (12) the connecting-rod reciprocates. If the cam member (18) is rotated about the second axis (16) of the eccentric portion (10A) until the longitudinal axis (12) and the third axis (20) of the cam member (18) are coincident the connecting-rod stops reciprocating.

Abstract: A device (10) for varying the angular phase relation between a camshaft (12) and a crankshaft (unshown) in response to axial displacement of an advancing plate (20) drivingly connected to a support (16) via straight splines (16f) and a drive (18) via angled splines (18d). The support (16) is fixed to an end (12a) of the camshaft (12) for rotation therewith. The drive (18) is journaled on the support (16) and is driven by and in phase with the crankshaft. The advancing plate (20) is also threadably connected to a drum (36) via threads (20c,36a) and the axial displacement is effected by relative rotation between the plate (20) and the drum (36). A clockspring (24) reacting between the support (16) and drum (36) tends to rotate the drum (36) faster than the plate (20) for positioning the plate (20) in a first limit position.

Abstract: In a phase adjusting apparatus for a sheet-fed printing press for adjusting a relative phase in a rotational direction between a paper sheet feeder and a printing apparatus which are coupled through a chain, a sprocket is in internal contact with a tension side of the chain and is axially supported by a slide base. The slide base is supported to be movable in a direction substantially perpendicular to an extension direction of the tension side of the chain. A slide base driving apparatus is arranged on a press frame. A tension sprocket which is biased in a tension direction of the chain by compression coil springs so as to be in contact with a slack side of the chain.

Abstract: A variable camshaft timing system for an internal combustion engine varies the relative angular position between the intake camshaft and the exhaust camshaft by controlling the path of the timing belt. First and second idler arms, each having an idler wheel connected thereto, are independently pivoted around a common pivot point by means of a pair of positioning cams operatively connected to an electric stepping motor. The motor is controlled from an electronic control unit which receives signals indicating the engine operating characteristics and through a look-up table steps the positioning cams which in turn pivots the idler arms to rotate the intake camshaft relative to the exhaust camshaft thereby changing the intake valve timing.

Abstract: A harmonic locking ring having a predetermined number of spaced holes centered on a major and minor circumference. Said holes fit over pins in concentric parts thereby locking parts together in desired positions within very close tolerances.

Abstract: Phase control device comprising a driven wheel and a driving wheel. The driven wheel engages an endless loop, whose going part toward the driving wheel and returning part from the driving wheel engage a pair of idling wheels and one or plural pairs of movable wheels. The movable wheels are finely adjusted toward a cross direction to the endless loop so that either the going part and the returning part is pulled, while the other is slackened. As a result, the phase of the driven wheel is changed so that timing of the driven wheel against the driving wheel can be regulated. The phase control device provides timing of the operation of a pair of machines such as coveyors which link mutually.

Abstract: A coupling mechanism comprises driving means 12 selectively engaged by driven means 13. The driving means 12 includes an active driving sprocket 15 engaged by a drive chain. The positional relationship of the sprocket 15 with respect to the drive chain is selectively adjustable through a clamp mechanism 21. Locking means 139, 141 preclude the driven means 13 from rotating when the driving means 13 is disengaged from the driving means 12. The positional relationship of the locking means 139 is adjustable relative to coupling drive pins 129.

Abstract: An adjustable turning ratio rotary positioning mechanism has rotary drive and driven members coupled by a flexible drive band, such as a sprocket chain, with oppositely movable runs between the members which are laterally displaceable during rotation of the drive member in such a way as to selectively provide the positioning mechanisms with different predetermined turning ratios, i.e., the turning angle(s) of the driven member(s) per unit turning angle of the drive member. A camera dolly steering mechanism embodying a rotary positioning mechanism according to the invention actuated by a single cam on the dolly steering shaft for selectively steering the dolly in round, crab, and conventional steering modes.

Abstract: Drive for cylinders of an offset printing machine having a gear train constructed of spur gears disposed as drive gears on respective shafts of the cylinders, and including clamping devices for synchronizing rotation of the cylinders, the clamping devices being rotatable with the spur gears respectively associated therewith and having respective gear rims deformable more or less in accordance with an adjustment thereof, including a clamping plate respectively disposed coaxially to the spur gears, the spur gears being helically toothed, and at least two of the clamping devices mounted on the clamping plates, respectively, and acting in radial direction upon the gear rim of the spur gear respectively associated therewith.

Abstract: A valve timing device for an internal combustion engine includes a hub with an internal helical groove which engages a tracking post extending from a cylindrical surface of a crankshaft. A locking cap is placed at the outer end of the crankshaft spaced apart from the hub with a compression spring wrapped about the crankshaft between the hub and the locking cap. A sprocket is keyed onto the hub and trained about a chain which is drivingly trained about a conventional camshaft. As the crankshaft speed is increased, inertial loads of the camshaft causes the sprocket and hub to rotate relative to the crankshaft which axially moves the hub a predetermined amount along the crankshaft to compress the spring until the resilient forces of the spring counterbalances the inertia forces of the camshaft.As the hub is angularly positioned, the camshaft becomes angularly retarded relative to the crankshaft such that the valve operation is delayed with respect to the piston operation as the engine speed increases.

Abstract: An apparatus for intermittently feeding a series of like articles along a path so as to present them in succession to a plurality of operation stations where operations are performed upon the articles in sequence. The apparatus is provided with at least a pair of spaced drums mounted on parallel axes and a one-piece substantially non-stretchable belt passing around the drums. One of the spaced drums constitutes a driving drum and the other of the spaced drums constitutes a low inertia idler drum.