Abstract: A gate valve has a housing provided with a passage embraced by a valve seat for a fluid medium, carrying solid particles, to flow therethrough. A gate is provided which is connected to a rod of a drive through a beam member. A hole in the beam member receives a shank with a clearance extending axially of the rod. Ends of the beam are pliable in an axial direction relative the passage and the beam ends have bevels to engage with stops of the housing. The housing has a projection to limit the travel of the gate axially of the rod.

Abstract: An automobile seat includes a head rest for use by an adult which can be converted to an infant seat by pivoting a portion of the back rest forwardly and extending the infant or child seat from a storage compartment, and lowering the head rest which can be locked or secured to the child seat to serve as a restraint for the child. The child seat, which is pivotally mounted between its retracted and extended positions, is locked in each of said positions to provide security and reliability in both modes of operation or use.

Abstract: The disclosed stand comprises a housing with carriers that are located pairwise on either side of the axis of rolling oppositely to each other and accommodate the bearing chocks of the work rolls. The work rolls are disposed one above the other between the backup rolls. A device for prestressing the stand is included. A device for prestressing the work rolls separately interconnects the bearing chocks of the work rolls of each pair located one above the other.

Abstract: The milling cutter with a feeding motion in forward and reverse mills plane surfaces of large diameter in the area of through holes and consists of a tool head 17 which can be driven in rotation by a shank 17 and in which are mounted two cutting parts so as to be radially movable and lockable in seating slots. The cutting parts are shifted by means of a rocker which is disposed so as to be rotatable about the longitudinal axis of the tool and whose steering bolts attached to its face and pointing in an axial direction engage associated recesses in the cutting parts in the manner of crank pins.

Abstract: The invention includes a conventional exercise bicycle with foot pedals, a chain drive system and a flywheel. Rotating with the flywheel is a first gear which is in mesh with a second larger gear. Located on the face of the second gear, but offset from the center of the gear, is an eccentric which supports reciprocating arms. Movement of the reciprocating arms by the exerciser causes rotation of the second and first gears and, consequently, the flywheel.

Abstract: An apparatus for sealing a cylindrical storage cell comprises a main holder accommodating the storage cell, an auxiliary holder accommodating a rod, and a means for rolling-in the housing of the cylindrical storage cell including two shafts secured coaxially in the wall of the auxiliary holder. Mechanically linked with each such shaft are a seaming roller and an element for adjusting the distance between the seaming rollers interconnected therebetween, a stop means for limiting the movement of the seaming roller being in turn connected to the element for adjusting the distance between the rollers.

Abstract: A planetary-rotor hydraulic motor in a housing enclosed on two sides by first and second cover plates, of which there is disposed a shaft carrying a gear fixedly secured thereon and engageable with an inner toothing of a rotor arranged with an eccentricity relative to the shaft to form variable volume chambers, an outer toothing of the rotor engaging with an inner toothing of the housing and a fluid distributor serving to alternately communicate the variable volume chambers with holes in the second cover plate for feeding and discharging a fluid through a control valve accommodated in the second cover plate and resiliently urged to the fluid distributor, the control valve defining by its side opposite to the one facing the fluid distributor with the second cover plate a cavity continuously communicating through a damping passage with the hole for feeding the fluid.

Abstract: The invention relates to apparatus for cultivating microbiological substances. The fermenter comprises a container (1) accommodating an aerator (4) and a stirring unit (5) having the form of a circulation tube (6) and membrane (7). A partition (9) having a through hole (10) offset relative to the center thereof is disposed between the membrane (7) and the end of the tube (6) to define with the membrane (7) a closed volume (11). The aerator (4) and the stirring unit (5) are integrated into a single assembly secured on the partition (9) and having a chamber (12) for distributing liquid and gas flows.The fermenter is intended for intermittent cultivation of various substances of biological origin feeding on liquid, solid or mixed nutrient substrates.

Abstract: A device for processing electro-oculographic signals comprises series-conted a sensor of an EOG signal, an amplifier-multiplexer, a low-pass filter, a high-pass filter, an analog-to-digital converter, a stationary disturbance detection unit, a stationary disturbance suppressing unit, a multiplier, an adder-accumulator, a digital comparator, a time gate, a memory unit, a digital discriminator, and a control unit. In addition, the device comprises a stimulation period determination unit, an extrema determination unit, a first function generator, a second function generator, a classification unit, a visual stimulator, a calibrator, and a data display unit. The control unit has a plurality of outputs connected to respective additional inputs of the aforesaid units.

Abstract: A method for controlling the supply of fluid to a combine, wherein fluid is fed for actuating hydraulic cylinders 14, 15 of the drive for moving the combine and to a dust suppression hydraulic system 1. The same fluid, which is discharged from the hydraulic cylinders 14, 15, is used for feeding it at a pre-set pressure to the hydraulic system 1 for emergence under the flowthrough conditions. For that purpose, the dust suppression hydraulic system 1 communicates, via a fluid distributor 13, with the hydraulic cylinders 14, 15 to define an open-circuit hydraulic system.

Abstract: A ball throwing machine comprises a pipe (4) for supplying balls (5) and an impeller (9) with a hammer (10) fitted on a drive shaft (8). There is provided a follower (11) to which are cantilevered two support tabs (15) adapted to receive and retain the ball (5). The support tabs (15) are spaced from each other at a distance smaller than the diameter of the ball (5) and greater than the width of the hammer (10) of the impeller (9) and positioned in such a manner as to let the hammer (10) of the impeller (9).

Abstract: Improved calibration standard construction for X-ray fluorescence thickness measurement gauges formed of one or more plated layers of known character and thickness disposed on an apertured supporting foil base and accessible to X-radiation through an aperture at the base of a conically shaped bore in a surrounding protective housing member.

Abstract: A continuous dual spooler and a drive for driving the arbors selectively and controllably to wind wire on a full reel while stopping the other reel to permit replacement thereof with an empty reel. During transfer a snagger, mounted on a plate arranged for rotation about the axis of the reel, snags the wire and winds an initial number of turns of the wire onto the empty reel. Pins or other projections, mounted on a pin plate arranged substantially in the plane of the snagger plate for rotation about the axis of the reel, initially rotate in synchronism with the snagger plate and extends into the path of the snagged end of the wire when the snagger and pin plates rotate relative to each other. A control, together with the drive, temporarily disengage the arbor from the snagger and pin plate to allow free wheeling of the reel.

Abstract: An artificial eye lens (1) comprises an optical lens (2) and three supporting elements one of which is shaped as a loop (3), while the two other elements are made as V-shaped legs (4). The loop (3) and the legs (4) are situated on the diametrically opposite sides of the lens (2). Each of the legs (4) is secured with one of its sides (5) on the anterior surface of the lens, is inclined towards the posterior lens surface so that the other side (7) of the leg is situated in the lens principal plane. The legs diverge along the lens (2) lateral surface, and the ends of the leg sides (5 and 7) face each other.

Abstract: A holder for roasting poultry comprises a detachable drip pan and a first bent wire element interlocking with a second bent wire element whose ends are attached to the circumference of the drip pan and curve inwardly and upwardly to a vertical plane relative to the drip pan. The first wire element being longer than the second wire element has a sine-like top curve having a low point which is crossed by the apex of the second bent wire element.

Abstract: A chainless feed system of a mining cutter-loader comprises a guiding rack mounted on a conveyer and meshing with gears rotatably mounted on the cutter-loader. The gears are operatively connected through a rotating mechanism with the hydraulic cylinders operable for rolling the gears along the guiding rack. The improvement of the rotating mechanism includes a carrier with a pawl adapted to engage the gear or come out of engagement therewith. For this purpose the pawl is pivotally mounted on the carrier which is operatively connected with the hydraulic cylinders arranged in opposition with respect to the pawl.

Abstract: A microswitch comprises stationary contacts (2,3) mounted on an insulating base (1), a four-link system (5) of levers which is made in the form of a chain including connected to each other in series an actuating link (8), two middle links one of which being a contact link (10) and the other one being an intermediate link (11) and a support link (9), and a limit stop (6) for holding one of the middle links (10 or 11) in the end positions. The actuating link (8) and the support link (9) being the end links are mounted for rocking on the insulating base (1), and one of the middle links, viz. the contact link (10) carries a movable contact alternately interacting with the stationary contacts (2,3). According to the invention, the movable contact (4) is located on the end of the contact link (10) connected with the intermediate link (11), and the limit stop (6) is located close to the place of connection of one of the middle links (10 or 11) with the support link (9).

Abstract: A reversible percussive action machine comprises a housing which accommods a hammer capable of reciprocating motions under the action of a pressurized fluid, and a fluid valving member for controlling the distribution of fluid with parts for fixing it in two fluid control positions to assure either the forward or rearward percussive action of the machine. To fix the fluid valving member to provide for the forward percussive action of the machine, a spring-loaded insert which is movably secured relative to the valving member and engageable with a stop made in the housing is used. To fix the fluid valving member in a position to provide for the rearward percussive action of the machine, a stop made on the inside wall of the housing and a stop made in the valving member to engage with the stop of the housing is used. The insert is fashioned as a cup accommodating an element imparting a spring action on the cup relative to the fluid valving member.

Abstract: Apparatus is disclosed for the separation of admixtures from contaminated thermoplastic materials. The apparatus has a distributor screw, a retainer chamber and return flow holes for contaminated materials to pass from the retainer chamber into an annular space formed between the distributor screw and the screening element within the pressure chamber. The materials circularly travel around saw-like teeth of the distributor screw and back through the flow holes into the retaining chamber. The retainer chamber and the annular space are openly connected to each other at the inlet side of the pressure chamber. Purified materials exit through one outlet exit and admixtures exit through a second exit.