Abstract: An electric motor driven roll feed system for intermittently advancing stock into the work station of a punch press. The roll feed system is designed so that its main rotating elements have greatly reduced rotational inertia. A low inertia overall roll arrangement is characterized by two relatively small diameter cooperating feed rolls that are respectively radially supported by a plurality of light back up rollers that peripherally engage these small feed rolls at locations spaced along the operative lengths of such feed rolls. The spaced rollers thus allow the applied operational stock gripping, feeding and braking forces to be distributed over several support locations along the operative axial length of each feed roll.

Abstract: An electrical wire length measuring apparatus is capable of minimizing any error of the wire feed amount of respective wire per each measurement cycle and can realize more accurate length measurement of the wires. The measuring apparatus includes a plurality of wire length measuring roller assemblies that are arranged in parallel arrangement to each other, but extend perpendicular to the wire feed direction. Each of the wire length measuring roller assemblies feed a single wire independent of each other. Each of the wire length measuring roller assemblies are driven by a corresponding toothed belt which in turn is driven by an associated motor. The arrangement of the motors permits the wire measuring roller assemblies to be positioned nearer the outlet end of the apparatus to minimize feeding error.

Abstract: A driving apparatus for a double carriage scanner drives the lamp carriage and the optical carriage in tandem. The driving apparatus is located at one side of the scanner housing for ease in assembly and maintenance. It consists of a pulley assembly and a closed-loop conveying device which engages the pulley assembly in a manner that the lamp carriage advances one unit distance while the optical carriage one half unit distance in synchronism and in the same direction.

Abstract: A series type decoupler joint includes a driving pulley, a driven pulley and a flexible rubber core coupled therebetween. The driving pulley has an inner hub for mounting onto a shaft and an outer rim for engaging a driving belt. The driven pulley has an inner hub having a bearing assembly for rotatably mounting the inner hub onto the shaft and an outer rim for engaging a driven belt. The flexible rubber core is bonded between the driving pulley and the driven pulley.

Abstract: A drive arrangement includes an endless flexible drive element which cooperates with a pulley of variable effective diameter having two sheave members and a drive ring between the sheave members and able to run eccentrically when the sheave members move apart. The drive arrangement also includes a stabilising member for cooperating with the drive ring so as to maintain the axis of rotation of the drive ring at least substantially parallel to the axis of rotation of the sheave members.

Abstract: A drive system for driving at least one and preferably, a plurality of driven components. The drive system includes a multi-drive plate for securedly mounting and accurately positioning a plurality of drive system components on a single support structure. The drive system also has a single drive belt for being driven by at least one driving member. The multi-drive plate supports and aligns pulleys connected to the driving member and the driven component so that the single drive belt drives at least one driven component. The driving device may include a clutch for allowing the drive system to be driven by a main driving device or by an auxiliary drive device. The driving device and the at least one driven component are mounted on the same side of the multi-drive plate. The pulleys attached to the driving device and the at least one driven component and the serpentine belt are mounted on another side of the multi-drive plate so that the serpentine belt is easily accessible.

Abstract: A belt transmission for a very small size shovel car which improves the starting performance of an engine for the shovel car to permit employment as such engine of a small size engine having a low output power. The belt transmission comprises a first pulley mounted on an output shaft of the engine, second and third pulleys mounted commonly on an input shaft of a transmission case of the shovel car, a first belt extending between and around the first and second pulleys, a belt tension clutch movable to and from an operative position in which it engages with the first belt to cause the first belt to transmit power from the first pulley to the second pulley, a fourth pulley mounted on an input shaft of a hydraulic pump of the shovel car, and a second belt extending between and around the third and fourth pulleys.

Abstract: A drive power mission system having a driving pulley, a plurality of driven pulleys, and the power transmission belt laid in a serpentine manner over the pulleys. The driving pulley and at least one driven pulley, which are in contact with the inner surface of the power transmission belt, have a plurality of V-grooves arranged circumferentially. The V-groove fits to ribs formed on the inner surface of the belt, and the remaining pulley or pulleys, which are engaged with the outer surface of the power transmission belt have a plurality of protrusions arranged in parallel and circumferentially. The protrusions engage the outer surface of the belt, which is flat, and the power transmission belt is an endless belt having a plurality of ribs arranged longitudinally thereof. The ribs are substantially equal in section along the widthwise direction of the belt and the outer surface of the belt is flat.

Abstract: In the case of a cam shaft drive structure in which a cogged belt is passed around a pair of cam shaft pulleys for two cylinder banks of an OHC V-type engine and a crank shaft pulley, it has been widely believed that the tension of the cogged belt resulting from the longitudinal vibration of the cogged belt can be minimized by reducing the masses of the cam shaft pulleys to a least possible value. However, it was discovered by the inventors that it is not necessarily the case and on the contrary a favorable result can be obtained by selecting the moment of inertia of the cam shaft pulley on the tight side to be greater than the moment of inertia of the cam shaft pulley on the slack side. The reverse surface of the cogged belt can be conveniently utilized for driving accessory equipment and for engaging an idler pulley thereto.

Abstract: A cycle exerciser has a pedal-actuatable drive shaft and a pair of counter shafts rotatably mounted about spaced, parallel axes. First and second sprockets are mounted on the drive shaft and on one of the counter shafts, respectively. Third and fourth sprockets are mounted on the other counter shaft. A fifth sprocket is connected to an energy-absorbing wheel. The first and second sprockets are the same size and larger than the third sprocket. The fourth sprocket is larger than the fifth. A pair of oscillatable handle bar levers are connected to drive crank arms at opposite ends of the one counter shaft. A primary endless chain is in wraparound connecting engagement with the first, second, and third sprockets. A secondary endless chain is in wraparound connecting engagement with the fourth and fith sprockets. Energy is applied to the wheel through foot pedals and/or the handle bar levers.

Abstract: A two speed accessory drive (10) comprising an input unit (20) and a remotely positioned output unit (100) connected by a plurality of belts (108,100). The input unit is adapted to be driven by a remotely positioned driving member (102). The output unit, which is connected to the engine accessories by a serpentine belt (106), includes a linear actuator (280) for engaging and disengaging same.

Abstract: The crankshaft of an internal combustion engine is supported in a split bearing assembly near one end of the crankshaft, with the lower half of the bearing assembly formed in a bearing holder secured to the engine block. An arcuate flange projects axially towards that end of the crankshaft. The flange underlies a crankshaft pulley which drives a timing belt. The arcuate surface of the flange is struck from a center offset from the crankshaft axis in order to provide clearance for the timing belt. The offset construction also improves the joint seal between the oil pan and the engine block.

Abstract: A multi-spindle automatic screw machine having its principal working parts mounted on a weldment. A circular array of tool holders is mounted directly on top of the weldment, and a corresponding array of work spindles is mounted coaxially and in end-to-end confrontation with the tool holders upon a shaft cantilevered on the weldment.

Abstract: Around an engine-body of a vehicle, several auxiliary machinery such as an air-conditioner and a power steering-pump are disposed. Pulleys of said auxiliary machinery are driven by means of an endless belt or endless belts by a driving pulley of the engine. In order to obtain the most effective operation of the engine, consideration should be given to the degree of the power loss for driving the auxiliary machinery.For this purpose, according to the present invention, the order by which said several driven pulleys are driven by said driving pulley is determined by the magnitude of the driven torques of the corresponding auxiliary machinery along the running direction of the endless belt toward the driving pulley.

Abstract: Bidirectional tape drive systems have first and second tape drive capstans and first and second tape drives for rotating, respectively, the first and second tape drive capstans. The first capstan is angularly movable relative to the first capstan drive and a first elastic coupling restrains relative angular movement between the first capstan and the first capstan drive. Similarly, the second capstan is angularly movable relative to the second capstan drive and a second elastic coupling restrains relative angular movement between the second capstan and the second capstan drive. In this manner, tape tension is maintained above zero when the bidirectional tape drive changes directions, and excessive tension upon application of the tape assembly to the tape drive is avoided, while tape slack upon removal of the tape assembly from the tape drive is automatically taken up.

Abstract: A multi-mode copying or reproduction apparatus. The apparatus includes a movable, overlong flexible photoconductive belt having image exposure, developing, transfer and cleaning stations operatively disposed about the belt circumference. A two chamber vacuum tensioner is used to collect the extraneous belt length. A raster scanner capable of both writing and reading images on the belt segment laying between the vacuum chambers is provided, together with an auxiliary belt driver for moving the aforementioned belt segment at a speed compatible with that of the raster scanner. An auxiliary charging device, and operators for disengaging selected xerographic components permit selective processing of images written or read by the raster scanner.

Abstract: A drive arrangement for auxiliary aggregates of an internal combustion engine, especially for motor vehicles is constructed as a two-speed drive, that is at operation of the internal combustion engine at low speeds the auxiliary aggregates are driven from the drive shaft of the engine, whereas at operation of the internal combustion engine at high speeds the auxiliary aggregates are driven from the cam shaft of the engine over an intermediate pulley provided with a free wheel clutch. During low speed of the engine the auxiliary aggregates are driven from a pulley freely rotatably mounted on the drive shaft of the engine but connectable thereto by a centrifugal clutch, which at high speed of the drive shaft disconnects the drive of the pulley by the drive shaft of the engine while the free wheel clutch engages. The auxiliary aggregates, respectively the pulleys thereof, are located in one plane with the pulley on the drive shaft and the intermediate pulley.