Abstract: Apparatus for treating hair including a handle, hair separation apparatus associated with the handle and extending longitudinally along an axis, apparatus for oscillating the hair separation apparatus about the axis so as to bring the hair separation apparatus into repeated engagement with a group of hairs so as to ease passage of the separation apparatus therethrough, and apparatus for preventing the hair separation apparatus from striking a portion of skin to which the hairs are attached. The hair separation apparatus is oscillated about the axis at a relatively high frequency, of, typically, greater than 4,000 cycles per minute and preferably greater than 10,000 cycles per minute, and at a relatively small amplitude, of, typically, no larger than about 5.degree. and, preferably, no larger than 2.degree..

Abstract: A ring includes rotatably-mounted and removable ornamental elements. The base of the ring includes a pair of ears for supporting a spindle. The spindle, formed of threadedly cooperative elements is readily disassembled to permit selective removal and reorganization of the ornamental elements.

Abstract: Inching valves for providing controlled slow movement of a vehicle normally have a valve mechanism therein to control the pressure level of the fluid being directed to the driving clutch of the vehicle. Upon release of the pedal, a sudden jerk of the vehicle may occur. The modulating inching valve of the subject arrangement provides a housing having a valving mechanism slidably disposed therein and operative to selectively block communication between an inlet port and an outlet port. The modulating inching valve further includes an input actuator mechanism operative to selectively control the valve mechanism in response to the position of the operator's inching pedal. Through a portion of a predetermined travel distance of the input mechanism the operator controls the rate of pressure being supplied to the fluid actuated device and during the remaining portion of the predetermined travel distance the modulating relief valve automatically controls the rate of pressure rise.

Abstract: A unitary bolt face and firing pin device for firearms consisting of a self-adjusting head space block on the front of the bolt assembly facing the chamber in firing alignment with the primer of a cartridge inserted into said chamber, the face of said head space block having integrally formed thereon a firing pin for impacting with said cartridge primer when said bolt assembly is closed against said chamber.

Abstract: The present cooling system provides a limited flow rate to the clutches during disengagement and provides additional cooling flow to the clutches during partial engagement and controls the pressure level of the fluid from the source of cooling fluid by operation of a valve mechanism which is responsive to a control mechanism. Upon full engagement, the valve mechanism automatically reduces the volume of cooling fluid to the clutches and simultaneously reduces the pressure level of the cooling flow from the source of cooling fluid. This cooling system provides the needed volume of cooling fluid during partial engagement of the clutches and also reduces the volume of cooling fluid during disengagement to reduce drag forces while further reducing the volume of cooling fluid during full engagement to conserve horsepower.

Abstract: Apparatus for cooling hot particulate solids, especially shale solids, and reclaiming heat therefrom. The apparatus is constituted of an elongate housing divided into two compartments by a distributor plate sloped from 0.degree. to 15.degree. from horizontal, with jet openings therethrough declined downwardly from vertical at an angle between about 0.degree. to 45.degree.. The upper compartment contains a tube type heat exchanger and can be provided with a bed of solids. The lower compartment constitutes a plenum having a gas manifold with gas inlets for injection of gas into the manifold for release through the jets of the distributor plate. The gas is injected at velocities insufficient to fluidize a significant portion of the solids to maximize heat transfer between the solids and heat exchanger, and it contacts and expands the bed of solids, and assists in the downward movement of the solids along the distributor plate.

Abstract: A control system (10) for a spring applied, pressure released brake (16) is provided to control the pressure level in the brake (16) in response to operation of a control valve (22) to stage the pressure levels relative to the operating mode of the control valve. The control system (10) also provides two different fluid pathways (58,60) that are individually operational to lubricate a winch and draw-works mechanism (18) in response to the operating position of the control valve (22). This system improves the response time needed to gradually release the brake (18).

Abstract: A chamber alignment and safety system for firearms consisting of longitudinally extending slide mechanism axially aligned with and pivotally connected to the barrel and bolt housing, said slide mechanism including means for moving said pivotal connections away from one another, whereby the breech may be opened to expose the chamber for loading ammunition therein and for unloading spent cartridges therefrom by separating and rotating the barrel relative to the bolt housing, and a safety device having a rack carried by the bolt assembly and a pinion gear secured in the bolt housing meshed with the rack for driving the bolt assembly into and away from firing alignment with the chamber, said safety device also having trip means connected to a trigger sear for locking and unlocking said sear in triggering position responsive to movement of said rack and gear.

Abstract: This invention relates to a brake control system (10) for controlling engagement and disengagement of a spring applied pressure released brake (11) of a winch and includes an orifice (39) and a relief valve (37) connected in series to the outlet port of a metering pump (23) to relieve pressure in the outlet port at a lower than normal pressure level when the fluid flow therethrough is below a predetermined flow rate. Relieving the pressure at the outlet port of the metering pump reduces the pressure differential between the inlet port (24) and outlet port (26) of the metering pump and thereby drastically reduces the internal leakage within the metering pump so that the metering pump is operative to pump fluid from the actuating chamber (14) at the slow rotational speeds of the rotatable member (12).

Abstract: A spring-type embroidery hoop or knitting ring includes a plastic annular member with an interiorly-grooved surface, a spring-loaded member that fits securely with the free ends of said spring-loaded member projecting radially outwardly, and a locking member that restrains the free ends of the spring-loaded member from separating from one another more than a fixed spacing distance. A squeezing manipulation of the free ends causes them to be spaced from each other a distance less than the fixed spacing distance, while concomitantly reducing the circumferential dimension of the inner ring, so that the inner ring may be moved in or out of the groove in the outer ring in a controlled manner.

Abstract: Carding cylinder takeoff apparatus for producing a randomized web of textile fibers comprises a doffing roll, a wire covered transfer roll closely spaced from the doffing roll surface and a rotatable takeoff roll having a resilient rubber surface with a Shore A Durometer hardness of less than about 80 closely spaced from the transfer roll. The transfer roll is rotated in the same surface direction and at a surface speed less than that of the doffing roll for transferring the fibrous web and forming fiber hooks in the web to randomize it. The takeoff roll is rotated in the opposite surface direction and at a surface speed greater than that of the transfer roll for removing the randomized web from the transfer roll.

Abstract: A hydraulic latching valve mechanism (48) is provided integral with a control valve (14) to hydraulically hold an actuator (47) in an engaged position (E). This eliminates the need for mechanical detents and/or extra external lines. The valve mechanism (48) has first and second members (58, 66) which cooperate to selectively communicate a fluid chamber (59) with an exhaust port (52) or an inlet port (26) in response to the actuator (47) being moved from a first position (D) to the second position (E). This arrangement is used to maintain a valve spool (30) in a second position for extended periods of time by using the system pressure as the holding force.

Abstract: A selector valve (10) for providing a plurality of fluid signals has a plurality of signal ports (17-22) and a pair of drain ports (23,24) opening into a bore (14) of a body (11) and are angularly spaced one from another in a plane normal to the axis of the bore (14). A spool (12) is reciprocatable within the bore (14) between a plurality of positions. At each position at least one of a plurality of radial passages (48-57) in the spool (12) communicates an inlet passage (25) with a manifold (41), another of the radial passages communicates the manifold (41) with one of the signal ports (17-22) and one or more of a plurality of arcuate pockets (60-68) in the spool (12) communicate the other signal ports (17-22) with the drain ports (23,24).

Abstract: PCT No. PCT/US79/00293 Sec. 371 Date May 2, 1979 Sec. 102(e) Date May 2, 1979 PCT Filed May 2, 1979 PCT Pub. No. WO80/02446 PCT Pub. Date Nov. 13, 1980.In a control (28) for a hydraulically operated draw works or the like having a hydraulically disengaged brake (14), a transmission (10, 12) and a brake control valve (114, 122), the improvement including an accumulator (174) having a check valve (196) connected between the brake control valve outlet (152) and the brake (14) to modulate the application of the brake (14) after the brake (14) has been fully released and to provide no modulation of brake (14) application after the brake (14) has been only partially released to thereby minimize shock in the draw works components when a load is lowered rapidly and yet provide rapid action when operated slowly.

Abstract: An improved engine control system for engines is disclosed. The preferred embodiment is a closed loop, free running control system comprising apparatus for (i) sensing an engine performance parameter, (ii) selectively adjusting an engine control parameter in response to a control signal, and (iii) controlling the engine control parameter to optimize the engine performance parameter. The control system is adapted to optimize the performance parameter by adjustment of the single engine control parameter. In the preferred embodiment, engine speed is utilized as the engine control parameter, and spark timing as the engine control parameter, although other parameters may be utilized. Other embodiments and improvements are disclosed.

Abstract: A control for a hydraulically operated winch or the like having a hydraulically disengaged brake, a multi-speed, hydraulically controlled transmission, and a drum to be driven or braked. The control system includes means whereby the transmission is placed in neutral, automatically, whenever the brake is to be disengaged to lower a load and a control valve including a spool with small and large slots along with a drum-driven metering pump controls fast and slow lowering speeds. Emergency free fall of the load is accomplished in the valve by bypassing the small metering slot. An arrangement of an accumulator and check valves allow hydraulic disengagement of the brake even if the engine is dead and there is provided a recirculating hydraulic circuit to conserve oil in such an instance so that the accumulator volume can be minimized.

Abstract: A control valve pressurizes an outlet conduit when a variable fluid pressure signal rises above a first predetermined level and depressurizes the outlet conduit when the variable signal subsequently drops below a second level that is lower than the first level, the valve further functioning to maintain the outlet conduit unpressurized without regard to the variable fluid pressure signal level in the absence of a second fluid pressure signal. The control valve automatically controls a fluid pressure operated lock-up clutch of a torque converter in a vehicle transmission system. The variable fluid pressure signal source may be a governor producing a pressure proportional to vehicle speed while the second fluid pressure signal source is one or more of the transmission drive conditioning devices.

Abstract: A check valve comprises a spring biased poppet reciprocally mounted in a housing thereof to normally close an inlet to the valve. A set screw is threadably mounted in an exposed position on the housing to selectively vary the spring load on the poppet to thus vary the pressure setting thereof. An annular elastomeric locking member circumvents the set screw and is compressed radially inwardly thereagainst by a clamping member, releasably attached on the housing, to retain the set screw in its preset position.