Abstract: An improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.

Abstract: An improved paint spray gun assembly of the syphon type having a vented paint supply container, is characterized by a conduit connectable either between the container vent and a compressed air inlet to the gun, or between the vent and a fitting remote therefrom and open to atmosphere. With either connection, the conduit prevents dripping of paint from the vent upon manipulation of the gun by an operator, and with the connection of the vent with the compressed air a positive pressure is generated within the container to increase the paint flow rate from the gun.

Abstract: In a crop feed grinding and mixing apparatus having a mixing means mounted to a mobile frame, a grinding means fixed to the frame, material transfer means extending at least between the grinding means and the mixing means, material infeed means in material flow communication with the grinding means and drive means including a rotatable shaft operably connected to the mixing, grinding, material infeed and material transfer means, there is provided a speed responsive overload protective device mounted to the rotatable shaft so that when the drive means is slowed in operation below a predetermined speed by excessive crop feed accumulation in the grinding means the protective device automatically disengages the material infeed means from the drive means.

Abstract: In a multi container interlocked food machine having a power base with a bowl-supporting portion and driven shaft extending vertically therefrom, with an upstanding motor-containing housing, a processor bowl having structure locking it on the supporting portion and containing a cutter on the shaft, a lid on the bowl operatively connected to an interlock of an internal lid switch-controlled motor energizing circuit to deenergize said circuit on lid removal, an improved second interlock mechanism is provided comprising a separate smaller diameter blender jar and cutter disposable on the shaft, base securing structure on the jar locks it on the base portion concentric with the bowl locking portion, an internal separate jar switch is connected to the motor circuit in parallel with the lid switch, the base securing structure operatively connecting with the jar switch through a biased slider mechanism, whereby on mounting the jar on the base, the jar switch is closed to "on" position to automatically by-pass the li

Abstract: A heavy duty agitator ball mill for continuous grinding and dispersion of material suspended in a liquid has an upright rotor made of aligned rotor ring elements, mounted for rotation within a stator which preferably is also made up of aligned stator ring elements. Rotor and stator form a grinding chamber between them which holds a charge of grinding balls. Agitator members extend into the grinding chamber both from the rotor and from the stator. Both rotor and stator have cooling channels for flow of coolant, bounded in part by ribs formed on rotor and stator and hence promoting heat conduction. Working surfaces are of hard wearing materials as is made possible by the construction. The ring elements are readily replaceable, as are hard inserts of the agitator members.

Abstract: A device for the treatment of waste materials composed chiefly of paper and plastic film is equipped with a stellate rotor rotatably mounted within a casing of the device at a location through which the waste materials are passed. The stellate rotor is equipped with a plurality of rigid arms having ends which engage portions of the side walls of the casing to enhance recovery and separation of the paper and plastic film. Because of the rigid structure of the arms of the rotor, the ends of the arms engaging the casing side wall move along a circular path having a fixed radius. The casing side wall engaged by the ends of the arms of the rotor includes a curved portion extending from a first end thereof spaced away from the circular path of the rotor ends to a second portion which is coincident with the circular path of the rotor ends.

Abstract: This invention involves cutting a series of individual sheets of thermoplastic interlayer material into a selected trapezoidal shape of adjustable length and shape by winding a continuous ribbon of said material on an adjustable mandrel and cutting the continuous ribbon while mounted on the mandrel properly adjusted. The adjustable mandrel of this invention comprises means for independently adjusting the diameter or circumference of its opposite axial end portions so as to ensure that the plies of said material wound onto said mandrel are cut into trapezoidal shapes of the proper length and outline shape by one or more simple cuts parallel to the axis on which the mandrel is mounted for rotation.

Abstract: A core holder for reeling and method of making which includes a relatively elongated plastic tube and a plastic sleeve fixed on the tube with the sleeve having radially outwardly projecting therefrom a plurality of longitudinally extending ribs, the ribs being grindable to a predetermined radius.

Abstract: A tape tensioning apparatus particularly useful in regulating the tension in a tape such as an elongated strip of printer ribbon stock used in printing apparatus such as mechanical impact printers. A stock guide is supported for rotation on a base, the stock guide having an arm from which extends a roller. An inclined surface on the stock guide rests on a complementary inclined surface on the base so that the stock guide moves toward the base as the stock guide is rotated in a predetermined direction from a predetermined angular position, with a spring yieldably biasing the stock guide to its predetermined angular position. A spool of print or ribbon stock is mounted on a reel, itself supported for rotation with respect to the base, with the stock passing around the roller on the stock guide after exiting from the spool thereof and with the reel resting on and rotatable with a reel support disc which is constrained from moving more than a predetermined distance above the base.

Abstract: A method of detecting tape transport condition, wherein a signal is derived from detector means provided in association with at least one of a pair of spindle reels of a tape recorder to detect the rate of revolution of said spindle, said signal having a frequency proportional to the rate of revolution of said spindle. The signal derived from the detector means is applied to a phase-locked loop, and it is also applied to a synchronism detecting circuit, together with a signal derived from a voltage-controlled oscillator contained in said phase-locked loop. Thus, detection is made with respect to whether or not these two signals agree in frequency with each other.

Abstract: A tape cassette comprising a pair of case members which are oppositely arranged to form a case body and are each provided with pins at the four corners on the major inner surface, a pair of reel hubs rotatably provided within the case body, and sheet members which are each provided at the four corners with holes and each fixedly attached in place to the major inner surface of the case member in such a manner that the holes receive the corresponding pins on the case member. The interval between each pair of adjacent holes arranged on the sheet member along one of the sides of the sheet member is longer than the corresponding intervals between each pair of adjacent pins arranged on the case member in order that the sheet member bends inwardly within the case body, with the maximally bent center part thereof resiliently contacting the corresponding sides of a tape loaded on the reel hubs.

Abstract: The present apparatus for securing a flying craft to a starting and landing rea is especially intended for helicopters. In order to secure such a flying craft with a simple, yet effective device, the starting and landing area is provided with a perforated landing platform or plate. A valve below the perforation is connected to an evacuating pump. The flying craft is provided with landing gear capable of sealing the cavity when landing and to start the evacuation pump. In this manner the flying craft is held in position by the vacuum created in the cavity in the manner of a suction cup.

Abstract: A solar powered hot air balloon is disclosed having an envelope with an opaque portion and a transparent portion arranged so as to utilize solar heating to heat air within the envelope. The solar heating air may either by sufficient to provide the entire free lift or may be combined with air from a hot air generating system carried by a gondola supported by the envelope. The opaque portion of the envelope has a substantially black inner surface and a light reflecting outer surface with the black inner surface being positioned so as to receive a maximum amount of sunlight through the transparent portion for a given average position of the sun.

Abstract: To enhance the flow of air into a flush-type, air inlet on the fuselage of an aircraft, a wing-like deflector is mounted on a pedestal attached to the aircraft and is positioned outwardly from the fuselage and forwardly of the inlet so as to deflect free stream air flowing past slower-moving boundary layer air adjacent the fuselage, into the inlet. The deflector has an ogee shaped planform and is pitched at a predetermined angle of attack with respect to the direction of free stream flow to generate counterrotating flow vortices that trail the deflector and produce a strong downwash behind the deflector. The vortices entrain high energy air from the free stream and direct it down into the inlet. In one disclosed embodiment, the inlet is equipped with a door that swings between a closed position, flush with the exterior of the fuselage to block air flow from entering the inlet, and an open position, recessed within the inlet duct.

Abstract: A clamp assembly is provided for a dual parachute release mechanism for a litary personnel-type parachute which enables the automatic power cable to be in a condition to function for initiating parachute deployment, even though the manual ripcord cable and housing may have been previously released accidentally and prematurely.

Abstract: A trash bag holder which moves from a generally planar collapsed storage position automatically to an open use position in which it can be used to support a flexible wall container such as a plastic trash bag. The device includes a substantially rigid rectangular frame from which elongated support elements outwardly extend at each corner thereof. The corners are each provided with a tapered socket to receive one end of such support elements which are, in turn, connected thereto by means of an extensible cord. The support elements may thus be moved to a collapsed position generally parallel to adjacent frame elements wherein the cords are under tension and when released, will automatically move to their extended open position for receipt of a trash bag.

Abstract: The present invention relates to a food service tray slide rail drop support bracket where an accidental or intentional vertical movement of the front edge of the rail will not induce a folding or dropping of the rail below a horizontal tray-supporting position. The rear edge is lifted for lowering the front edge.

Abstract: An overhead swivel suspension set that consists of a mount and a support, i.e. a grab. The set when assembled is used to hang an object, e.g. a floral display or an electric light fixture, from a ceiling or the like. The mount includes a base adapted to be secured to a ceiling, and a horizontal ring held below the base by pendant legs. The base, the legs and the ring are die cast as a single piece. The opening through the ring constitutes a vertical bearing. The upper surface of the ring serves as a horizontal step bearing. The ring is gapped over an arc of considerably less than 180.degree. to provide a radial slot. The support comprises a journal with a grab, e.g. a hook, at its lower end, and an enlarged head at its upper end. The journal, the grab and the head are die cast as a single piece. The journal is rotatable in the opening through the ring so that it can turn about a vertical axis in the mount. The diameter of the journal is greater than the width of the gap.

Abstract: There is disclosed an adjusting mechanism for a vehicle seat which is adjustable in guideways in the longitudinal direction and whose inclination is variable by another adjusting device. In this arrangement, the adjusting device for longitudinal adjustment is automatically coupled with the adjusting device for inclination adjustment. This coupling is achieved by a train of toothed gears having a shaft associated with the longitudinal adjustment and another shaft associated with the inclination adjustment.

Abstract: Silica- or alumina-containing granules are loaded into a mold of which the inner walls at least are formed of a nonbonding material constituted of ferrochromite, magnesiochromite, calciochromite, or trivalent-chromium oxide. The mass is then heated to a temperature above the softening point of the granules so as to fuse them together and thereafter the heated mass is hardened. As the mass can inherently not bond to the lining of the mold subsequent separation is relatively easy.

Abstract: A high pressure ball valve, the ball valve being tiltable under pressure into tight sealing engagement with a sealing ring at the outlet of the valve body. A joint is formed between the spindle and the ball to allow the tilting action of the ball, while still providing low-torque turning of the spindle. A parallelepiped-shaped joint portion is formed on the bottom of the spindle and is loosely received between two bearing blocks on the ball valve so that small amount of loss motion is provided between the spindle and ball valve.

Abstract: A dishwasher drain valve provides axial alignment of inlet and outlet ports, a poppet is pivotally mounted in a chamber adjacent to the flow chamber of the valve and moves from a position blocking flow to one allowing substantially free straight through flow. The poppet is configured to provide self-centering within the valve body and allow for self-alignment with a valve seat formed in the through passage between the inlet and outlet ports.

Abstract: A valve comprises a casing having a passageway therethrough for the flow of fluid with a bore intersecting the passageway. A flow regulating member is rotatably mounted in the bore for blocking the passageway in a valve closed position of the flow regulating member. The flow regulating member has a port therethrough for connecting and being in communication with the passageway in a valve open position. The flow regulating member and the casing define a first chamber at one end of the flow regulating member. A stem is rotatably mounted within the casing and is mechanically coupled to the flow regulating member to rotatably drive the flow regulating member within the casing. The stem has an annular rim formed toward and positioned within the first chamber. At least one annular seal surrounds the stem to effect the seal between the stem and the casing.

Abstract: Disclosed herein is a gripper jaw for a driving, extracting head. The gripper jaw is comprised of a block-like body of metal with a front face and a back face adapted for attachment to a power-driven arm. The front face has wear resistant compacts with one end imbedded in the front face and the other end of the compact protruding beyond the front face.

Abstract: A leveling and support system for recreational vehicles operates on a plurality of telescoping air cylinders. Leveling is accomplished through a separate valve in the line for each cylinder, each valve being mounted adjacent the others, and adjacent an electrical switch which operates a DC motor in either a forward or a reverse direction. The motor actuates a rotary air compressor in a forward or reverse direction for changing the air pressure from positive to negative while operating each of the valves to each cylinder line.

Abstract: A hydraulic jack includes a fixed, cylindrical member mounted on a base, and a moveable member mounted exteriorly around and shiftable on the fixed member. The interior of the fixed and moveable members defines an expandable and contractable chamber, which, when expanded with hydraulic liquid extends the jack upwardly. The space between the exterior surface of the fixed member and the interior surface of the moveable member defines a second expandable and contractable chamber, which, when expanded with hydraulic liquid retracts the jack downwardly. Adjustable lift elements are mounted on the moveable member and are adapted to engage a device to be elevated.

Abstract: A fence is characterized by interchangeably mountable fence sections each having a front and a rear surface, and parallel pairs of vertical and horizontal edges. A mounting member having a mast-receiving opening therein is disposed adjacent each vertical edge of the wall portion of each of the fence sections. Each mounting member has a mating surface thereon disposed in the same plane as the mating surface provided on the other mounting member. When the first mating surface on the wall portion of a first fence section is matingly engaged with a mating surface provided on the other of the mounting members on a next-adjacent fence section, the mast-receiving openings therein are disposed in vertical registration. The fence section, including the wall portions and the mounting members, are integrally fabricated of a plastic material.

Abstract: The invention relates to controlled atmosphere heat treating furnaces and particularly to furnaces for bright annealing of copper or its alloys. A new concept is proposed for conserving energy uses by first having a separate atmosphere producing system that fires constantly, independent of the temperature control and secondly having a cooling system that only extracts the excess heat produced by the combustion for atmosphere. In this way the furnace may be maintained at the desired operating temperatures regardless of variation of the work load, yet all of the heat generated by the atmosphere producing device is released within the furnace thereby eliminating unnecessary heat losses.

Abstract: A hydraulic shock absorber having an outer tube which is closed at one end and open at the other end. An inner tube, having a plurality of metering orifices, and having a closed inner end and an open end, is mounted in the outer tube with its closed end against the closed end of the outer tube. A meter tube, having a plurality of metering openings, is rotatably mounted above the inner tube. The inner tube is retained in its longitudinal operative position by the meter tube, a rotatable retainer member, and a wave washer. A locking pin retains the inner tube against rotation. The inner tube, meter tube, and the rotatable retainer member are all assembled into the outer tube through the open end of the outer tube, and they are retained in the outer tube by a retainer member. A meter tube adjusting ring is rotatably mounted on the outer tube, and it is connected to the meter tube for adjusting the position of the metering holes in the meter tube relative to the metering orifices in the inner tube.

Abstract: A safety device for use with a speed change gear system for a bicycle which comprises a casing mountable in position to a bicycle frame, a hollow shell member disposed within the casing, a resilient member including at least one first coil spring of large diameter and a second coil spring of a smaller diameter disposed within the shell member in axial alignment and partial overlapping relation with each other. Further, at least three axial spaced slide members are disposed within the shell member so as to be cooperative with the resilient member. A tubular sheath extends in curved position and is connected at one end to a rear derailleur and at the other end to one of the slide members, and a gearshift wire passes through the safety device and the tubular sheath.

Abstract: A rip fence for table saws extensively used in woodworking. The rail of the fence is made in two parts, the lower one being vertically adjustable to provide a minimum table clearance.

Abstract: The disclosure relates to a mechanism for high speed horizontal folding of fabrics, such as tubular knitted fabrics, enabling the fabric to be folded at greatly increased linear speed in relation to the prior art. The folder apparatus includes horizontally reciprocating downfeed rollers which receive the incoming fabric and propel it downwardly, while guiding the fabric horizontally to lay it in back and forth folds of substantially uniform length. Means are provided for reciprocating the downfeed rollers horizontally at high speed during the folding operation. Means are also provided for continuously rotating the downfeed rollers, independently of the horizontal reciprocating motion thereof, for directing the incoming fabric downward toward the accumulating fold stack. Reciprocating weight is held at a minimum by providing a novel external drive for the downfeed rollers, which are operative to provide a constant rate of downfeed of the fabric in any horizontal position of the downfeed rollers.

Abstract: Improved sheet separating and feeding apparatus that opens or partially opens the retard nip after the sheet has partially passed through the retard nip.

Abstract: Disclosed is a magazine for holding a stack of sheet materials and being adjustable to accommodate stacks of different size sheet materials, comprising: a base plate; two sliding plates mounted longitudinally displaceably on the base plate; a bottom plate positioned laterally displaceably in spaced relationship above the sliding plates; a cam follower mounted on the side of the bottom plate facing the sliding plates; longitudinal confining means for the stack of sheet materials mounted on one opposing axial end of each of the siding plates; lateral confining means for the stack of sheet materials mounted on at least one lateral side of the bottom plate; and means, including a lever pivoted on the base plate and positioned in the space between the sliding plates and the bottom plate and a cam disk pivoted on the base for rotation with movement of the lever and positioned above the lever in said space so as to engage the camming surface of the cam disk with the cam follower for longitudinally displacing the sli

Abstract: A conveyor for moving successively a plurality of articles, typically cards, in flat horizontal position, longitudinally along a horizontal bed, comprises a plurality of chamfered rollers rotating at uniform speed on vertical axes, disposed in two laterally spaced lines extending along the bed, with the rollers of each line rotating in a direction opposite to that of the rollers of the other line, all the rollers making propelling contact with the edge margins of the cards, and all mounted in modules adapted to be spliced endwise to each other, and all geared together in groups individually driven directly by a single power source.

Abstract: A game apparatus includes a generally vertically oriented rotatable shaft mounted on a base and a playing object pivotally connected to the top of the shaft for operator controlled movement. A drive mechanism is mounted within the base and includes first and second plates mounted for reciprocal translatory movement. The second plate includes a longitudinal slot surrounding a drive gear or ratchet secured to the shaft. The slot includes opposing ratchet teeth pitched in opposite directions for alternate engagement with the drive gear. The second plate is connected to the first plate for relative movement such that one set of ratchet teeth engages the gear upon reciprocal movement of the first plate in a first direction and the other set of ratchet teeth engages the gear upon movement of the first plate in a second direction to rotate the drive gear in a single selected direction.

Abstract: A game of skill involving the remotely-controlled propulsion or guidance of a toy vehicle through a pictorial model representation of a hazardous journey or path. When the objective is successfully reached the vehicle operates a switch to trigger a camera which photographs the operator at the control site.

Abstract: A tennis practice device which uses a hollow container which may be filled with sand or water as an anchor for a tennis ball attached to the lid of the container by means of an elongated elastic line. The line is attached to the tennis ball by means of a nylon adapter line which is threaded through the ball and tied in a loop. The elastic line is attached to the lid by means of a swivel hook. The device provides a completely portable tennis practice apparatus which may be filled with a weighty material during use and which serves as a storage container for the tennis ball and line when it is not in use.

Abstract: A golf putter having a spring-loaded rotatable head with hitting faces on opposite sides having different pitches so the player can select the pitch most suitable for putting around the golf green.

Abstract: There is disclosed a hand grip that is received over the hand gripping portion of a handle of a tool. The hand grip is formed of a spirally wrapped porous tape of a reticulated, open cell form having an uncompressed wall thickness no greater than about 5/16". The spiral wrap has a continuous open edge seam between adjacent tape wraps and is secured to the handle by an adhesive tape spiral wrap overlying the open edge seam and adjacent edges of the porous tape. This material, in contrast with sponge and sponge-like materials, has a low water holding capacity, less than about 20 volume percent. Preferably, the hand grip has a high degree of compressibility, typically with a compression resistance at about 80 percent deflection no greater than 1.5 to about 4 pounds per square inch. The low capillary and open-celled structure of the sleeve insures breathing of the sleeve under repeated compression which is adequate to expel most moisture during use.

Abstract: A golf club includes a head which is provided adjacent to its toe and heel with weights which are swingable with respect to the head by the moment of inertia given by the swinging motion of the head and the reaction of a ball struck by the head. Resilient materials connecting the head and weights. This swinging motion of the weights with a delayed motion and in a direction perpendicular to the longitudinal axis of head orient the head at a right angle against an intended course of the ball.

Abstract: In a combined stylus and generator system, the combination with a stylus adapted to operate with a record groove and a generator moving in response to the movement of said stylus means for suspending the stylus and generator system for universal movement. The means for suspending the system includes a pivot member connected to a rigid support and seated in an elastomeric socket member proximate the end of the stylus lever. The pivot member is preloaded in the elastomeric socket member by a second elastomeric member coupled between the rear of the stylus lever and the support. Lateral motion of the generator system is damped by non-linear compressive forces in the preloaded elastomeric socket member, while forces on the stylus causing the generator system to swing about the pivot member are damped by opposing shear compliance forces in the elastomeric socket member which act to return the stylus to its neutral position.

Abstract: A seal assembly for a downhole hydraulically operated oil well pump has a dovetail shaped groove around the exterior of the pump body and a seal element mounted therein. The seal element has an inner side resting against the groove bottom, one end of a full thickness filling that end of the groove and extending therefrom toward the opposite end having a recess portion around the outer perimeter thereof forming a lip about a mid-portion of the seal element which is deformed by fluid pressure acting toward that end of the seal to urge the lip outward into sealing contact with a pump housing which encloses the pump body.

Abstract: A bit retainer for impact type pneumatic tools arranged to be mounted on the tool and to releasably receive a bit. The retainer includes a body having a bore extending therethrough. The bore includes a nose portion of generally elliptical configuration, a center portion of circular configuration and a rear portion of generally elliptical configuration that has its major axis disposed at about 90.degree. relative to the major axis of the front portion of the bore. Radially movable locking members are provided that operate in cooperation with a movable sleeve. The sleeve is movable between unlatched and latched positions which permit and prevent radial movement of the locking members to positively retain the bit unless the sleeve is intentionally moved to the unlatched position.

Abstract: A crossover preventer for skis comprises a base plate adapted to be mounted upon the upper surface of a ski and provided with an upwardly swingable barrier which, in its upright position, forms a stop to prevent overcrossing of one ski above the other. The barrier-forming element is swingably mounted on the base plate via a carrier body which is rotatable and shiftable relative to the base plate.

Abstract: A stepwell cover comprising a deck consisting of first and second deck segments having edges pivotally secured together adjacent a central portion of the deck, and an actuating mechanism arranged to move a first deck segment through an angle of ninety degrees while simultaneously moving the second deck segment through an angle of one hundred eighty degrees relative to the first deck segment for moving the stepwell cover between a first position covering the stepwell and a second position providing access to the stepwell. The first deck segment is pivotally secured to the vehicle and a chain or cable is secured to a sprocket on a shaft secured to the second deck segment for moving the second deck segment relative to the first deck segment.

Abstract: An isolated step mounted on an isolated cab of a tractor with stabilizer means isolating the step from the vehicle chassis and dampening vibrations primarily through shear stress of an elastomer.

Abstract: An isolated step on a tractor with means isolating the step from the vehicle chassis and for dampening vibrations of the step which is mounted on an isolated cab of the tractor.

Abstract: A base member is arranged to be secured in a fixed position on a vehicle and has a top surface upon which a flat disc of resinous plastic material is seated to form a load supporting bearing. A load plate having a bunk secured thereto is seated on the plastic disc and is connected to the base member for rotation thereon. The base member, together with the resinous plastic disc and the load plate, have a width sufficient to provide sole support for a bunk on the vehicle. Resinous plastic annular rings are secured to the assembly to provide thrust surfaces between the load plate and the base member.

Abstract: A device for attachment to an upright post on a bed of a pick-up truck or other vehicle for gripping one end of a tie-down rope to apply tension to the rope to hold pipe or other load on the vehicle when the rope passes over the load and as the opposite end of the rope is secured to the vehicle. The device includes a shiftable, generally upright bar coupled with a jacking unit secured by a bracket to the post. A cam member on the upper end of the bar is used to wedge the rope against the bar after the rope has been passed over the load. Then, by operating the jacking unit, the bar is caused to be lowered, thereby placing tension on the rope and holding the load in a rigid, secure position on the vehicle. The movement of the bar can be reversed to remove the tension by operating the jacking unit in reverse.