Abstract: A domestic food mixer in which a housing is formed as a base portion and a cover portion, each of plastics material, the base portion having a pair of apertures adjacent one end. A bearing plate is secured in the base portion of the housing in overlying relationship to the apertures, and a pair of pinions each have a lower axial shaft extending on the lower side of the pinion and an upper axial shaft extending on the upper side of the pinion. The lower axial shafts of the pinions are located in the apertures and have a shoulder which rests on the bearing plate. An electric motor includes a frame which rests on locating elements on the base portion and the armature shaft of the electric motor carries a drive worm which is engaged between the pinions. A mounting plate which forms part of the electric motor frame has two apertures therein, one engaging each upper axial shaft, the mounting plate engaging on shoulders of the upper axial shaft.

Abstract: A self-cleaning sprocket, especially for use with an endless belt having internal drive lugs in a crop gathering unit, being a body of material having a disk-like base portion and a plurality of radial ribs extending axially from the base portion and converging to a central hub portion, the ribs and base center portion defining a plurality of open-ended lug-receiving pockets. The portion of the base portion in the pockets slopes axially toward the open end from the periphery to the hub portion and the hub portion slopes radially inwardly from the base portion to the open end, the intersection of the hub and base portions being filletted to promote the flow of debris from the base portion to the hub portion. The axial end of the sprocket is preferably flat and without obstructions and extends beyond the lateral edge of the belt. The sprocket is preferably mounted with the pockets in a generally upright position from its opposite axial end whereat a second plurality of pockets are formed.

Abstract: An anti-backlash gear assembly including an hydraulic piston that automatically maintains clearance-filling positioning of two relatively circumferentially adjustable axial parts of a split gear by receipt of hydraulic fluid from a local accumulator via a fluid-retaining check valve means.

Abstract: A composite gear made up of a carburized gear ring and separately formed hub and a method of making same wherein distortions in the gear teeth and ring caused by the carburizing process are removed by a special design of hub and welding selected portions of the hub to the ring.

Abstract: Presented is a chain tensioner device for chain drives which, because of the environment in which the chain drives are used, must have considerable slack, while operating at high speeds, and yet remain properly engaged to the sprockets on which the chain rotates.

Abstract: A remotely operable manipulator orients an end-effector mounted to one end of a plurality of serially connected drive shafts. The manipulator has two sets of concentric shafts with individual shafts within each set independently rotatable about an axis common to the set. The common axes of the two sets are obliquely oriented with respect to each other; and a third shaft, rotatable about a third axis, is angularly oriented and connected to the most remote set of shafts. The preferred embodiment has the axes of the two sets and the third shaft intersecting at a single point and permits orientation of the third axis normal to any point upon the spherical surface of a spherical sector generated by the combined movement of the plurality of shafts.

Abstract: A method and apparatus for controlling the tension of flexible drive belts, or a single drive belt, connecting a drive pulley to a driven pulley. The apparatus includes a first idler assembly for engaging the slack run of the drive belts, a second idler assembly for engaging the drive run of the drive belts, and a tension member for adjusting the distance between the first idler assembly and the second idler assembly to a distance sufficient to cause the apparatus to maintain a position between the drive pulley and the driven pulley. The apparatus requires no external support or positioning member to maintain the position of the apparatus on the belts while the apparatus is controlling the tension of the moving belts. The method includes placing a first idler assembly on the slack run of the drive belts, placing a second idler assembly on the drive run of the drive belts, and forcing the assemblies together to increase the tension of the drive belts.

Abstract: Drive means for connecting a gas turbine engine to its accessories are so constructed as to allow the accessories to be selectively positioned to any one of several predetermined circumferential positions about the perimeter of the engine. This feature permits convenient mounting of the same engine upon vehicles demanding radically different engine mounting arrangements.

Abstract: A special fan hub designed to neatly replace the fan idling clutch in practically all new and used American makes of automobiles and directly mount the fan on the fan drive pulley.

Abstract: A method for driving an output shaft in the normal direction and the reverse direction alternately, which comprises performing alternately an operation of engaging a partially toothed wheel connected to the output shaft with a partially toothed wheel driven in the normal direction and an operation of engaging the partially toothed wheel connected to the output shaft with a partially toothed wheel driven in the reverse direction, wherein a cam follower mounted on the output shaft is caused to fall into engagement with a driven and rotated cam at the start and completion of rotation for one of said two operations, whereby acceleration is given to the output shaft at the start of the rotation and the speed of the output shaft is reduced at the completion of the rotation.

Abstract: A transverse appendage is spring biased into contact with a protuberance equipped platform. The platform protuberances act as detents impending arcuate travel of the transverse appendage. Tabs extending upwardly from the platform positively limit the arcuate travel of the transverse appendage.

Abstract: The present invention is concerned with a method of fitting a belt to a filter assembly of the endless belt type having belt-tensioning means in which a belt blank, the end portions of which are at least only partially vulcanized and which have disposed therein recesses arranged to receive in friction locking manner connecting members having an end portion whose configuration corresponds to the configuration of its receiving recess, is placed in position in the assembly around said belt-tensioning means such that the ends of said belt lie adjacent each other, whereafter the connecting members are inserted in respective recesses to form an endless belt having a friction-locked joint, the ends of said belt are fully vulcanized, and the belt is tensioned.The invention also encompasses a belt blank adapted to be used in the method as given above.

Abstract: An arrangement for sensing the rotary movement of a rotary means is disclosed, said arrangement comprising a sensing member which is arranged to be subjected to a predetermined actuation when the rotary means has rotated a predetermined number of revolutions, and two rotary members which are arranged to rotate at mutually different speeds, directly proportional to the rotary speed of said rotary means, and which are provided with actuating means arranged to cooperate with each other so as to cause said predetermined actuation of the sensing member when the two rotary members reach a predetermined relative position.

Abstract: The specification discloses a video recorder having two recording speeds. The recorder includes a capstan pulley for moving video tape past a recording head and a drive pulley rotated at a predetermined drive speed. A speed change assembly is interconnected between the drive and capstan pulleys and is operable to selectively change the recording speed of the video tape recorder. The speed change assembly includes a first shaft including first and second pulleys. A second shaft is provided and includes a first and second pulley, the first pulley of the second shaft having a smaller diameter than the first pulley of the first shaft. A solenoid is provided to move the first and second shafts between a first and second position, such that in the first position the first pulley of the first shaft engages the drive pulley and the second pulley of the second shaft engages the capstan pulley.

Abstract: The digit rolls of a counter a connected through transfer pinions in that pins extending axially from one roll towards another one engage a pinion once per revolution and the pinion turns the other roll by one step. The pins of the two rolls overlap axially with a slight radial clearance so that the gap between the rolls is just slightly larger than the length of either pin. The pins have semicircular, triangular, trapezoidal or rectangular cross-section.

Abstract: In a two-wheel vehicle, a compensating mechanism allowing the mounting of a driving sprocket and a cantilevered driven sprocket as to each other such that the driven sprocket is held at a desired degree of constant tensioned relationship with respect to the driving sprocket during normal operation and/or moments of subnormal operation wherein the suspension is momentarily directed vertically upwardly or downwardly due to uneven terrain or other circumstance.

Abstract: A substantially plastic ladder chain is made continuous by affixing the exposed metallic cable ends thereof to a master coupling link of stainless steel or like material. The exposed metallic cable ends of the plastic ladder chain comprising plural braided cable also of stainless steel or like material are fastened in such a way to separate master cross links, of the aforementioned master coupling link, by master link side lock pins of brass or like material so as to form substantially a molecular bond. The master cross links are then connected together in a conventional manner by master link retainer clamps and master link retainer clips, thus forming the continuous ladder chain.

Abstract: This invention relates to a clutch tooth design which provides increased load carrying ability by having substantial face to face contact of the teeth during a partial engagement of the clutch teeth. The teeth of the clutch are machined to a profile form which is of exponential shape. Mating contact areas lie in a mid-pitch plane perpendicular to the axis of rotation of the clutch. The mutual tangent between two contacting teeth lies in a truly helicoid surface. The essential line contacts resulting from machining are converted by a coining process to areas large enough to carry the service loads. As a result the tooth form developed actually improves with continued use.

Abstract: A multi-engine assembly comprising a plurality of small, light weight and high efficiency type engines, preferably of the two stroke type, connected by a hydraulic power transmission to a common output shaft, and capable of being selectively connected or disconnected to the drive upon demand.

Abstract: A gear train includes a plurality of gears mounted for cooperation. Two of the gears are provided with at least one projection from the side of the gear in a direction generally parallel to the axis thereof. In operation the projections on the gears interfere at a predetermined angular position to limit movement of the gear train.