Abstract: An article crusher comprised of a base plate support having an upstanding member supporting a pivoted lever with a platen carried thereon adapted to be moved within a cylinder mounted on the support plate to crush an article or the like positioned therein, with said cylinder being shaped to facilitate the insertion and removal of the article.

Abstract: Flowable solids are continuously and accurately weighed during transport to a collection or discharge point. A counterweight pivoted conveyor carries a rotating disc at its discharge end, one face of which frictionally engages a relatively stationary comparatively small diameter wheel having a plane of rotation at right angles to the plane of the disc. The disc rises and falls with the pivotal conveyor in response to varying amounts of material on the conveyor, thereby changing the effective radius of the disc relative to the wheel. The wheel activates a counter once during each rotation thereof to register a unit of weight in the counter. The structure is useful in agriculture or industry.

Abstract: Pavement striping tape is drawn through a guide mounted on a rolling machine by the direct action of the front pavement roller. The tape is delivered from a spool or spools on a first spindle mounted above the tape guide and the tape backing paper is automatically withdrawn from the tape and wound up on a spool or spools on a second spindle spaced from and rotationally powered from the first spindle. Both spindles are driven by the movement of the tape downwardly due to the direct action of the front pavement roller. The striping tape is pressed by the roller into hot fresh asphalt paving material during the final rolling of the asphalt.

Abstract: A UHF antenna for black and white and color television receivers embodies a dished reflector and coacting a dipole mounted a fraction of a wave-length in front of the reflector and being of bow tie configuration. The antenna possesses broad band characteristics for wide angle reception, and wide frequency deviation at UHF wave-lengths. The antenna structure which is for indoor use is fabricated from simple sheet metal components and embodies an integral support base which can be manually adjusted in any direction. Economy and simplicity of construction are featured.

Abstract: Nets or netting for fishing and for other purposes are fabricated without the customary laborious, time-consuming and costly hand knotting procedure and without the requirement for skill. The fabricating procedure can be automated for greater efficiency. The crossing strands which are to form the netting are connected at their points of crossing by crimped metal elements which lock the crossing strands against displacement in any direction. The crimped metal elements may be employed alone or in conjunction with an adhesive mass further bonding and locking the crossing net strands. In a variant, the strands are looped around the crimped metal elements for further security. The strands may also be knotted adjacent to their crossing points with the knots contained in an adhesive mass and further held by crimped metal strips.

Abstract: A low profile trailer dolly having separated rear wheels and a forward end draft tongue is adapted to be drawn by a garden tractor. The trailer dolly has a pivoted ramp member at its transverse center upon which the wheelbarrow wheel is rolled to elevate the wheelbarrow and nest its wheel between the ramp member and an adjustable supporting bar on the frame of the trailer dolly. Support platforms for the wheelbarrow legs and a leg locking device are provided adjacent to the inner sides of the wheels of the trailer dolly. The device enables a conventional wheelbarrow to serve the purpose of a small wagon around the home or farm.

Abstract: To simplify, lighten and reduce the cost of the rear wheel suspension on straddle carriers while increasing the operational efficiency of the suspension, a longitudinal walking beam is swingably mounted at its center on a transverse axis trunnion secured to a sturdy depending box beam on the straddle carrier frame. Rear wheel axle assemblies for pairs of tandem rear wheels are carried by the forward and rear ends of the walking beam. Shock struts are interconnected between the forward and rear ends of the walking beam and sturdy holders on the interior of the depending box beam in upwardly converging relationship for efficient operation. The shock struts can be hydraulic, air operated or mechanical with coil springs and cables.

Abstract: A firing mechanism for semi-automatic firearms features simplicity of construction and reliability with safety. Essentially, the firing mechanism consists of a trigger, sear, hammer and safety. Preferably, the firing mechanism also includes a convenient safety blocking lever including an extension which, under proper circumstances, protrudes inside of the trigger guard to be felt by the finger of the shooter to assure him that the gun is cocked. In another position, the safety blocking lever disables the safety and the shooter, not being able to shift the safety, is assured that the firearm is not cocked and not ready to fire.

Abstract: A dual adjustable flange variable speed sheave employs a common sleeve with clamping end caps. Each flange applies pressure to a V-belt through a helical compression spring restrained by one of the end caps, the sheave being symmetrical about the center of the belt. Outboard bearings for the two adjustable flanges transmit their loadings to the end caps, and the flanges have inboard bearings directly engaged with the common sleeve or connected therewith through interdigitating bearing parts.

Abstract: A dumping transport vehicle is provided for transporting picked or stripped cotton from a harvester back to the module. A large capacity dump box or basket features strategically located wire mesh panels to allow air to escape when the cotton is delivered into the dump basket so that the cotton will not boil out over the top of the dump basket and will properly settle therein. Additionally, the vehicle features improved geometry for the basket dumping cylinders in relation to the dumping pivot for the basket and the supporting wheeled frame so that the loaded device will be stable and will remain adequately stable when the cotton is dumped into the top of the module.

Abstract: A porous aircraft skin for wetted areas of an aircraft employed in conjunction with a suction system of the aircraft to draw air inwardly through pores of said skin for laminar flow control. The porous skin is compliant and includes a thin outer skin with fine pores bonded to a lower substantially thicker coarser pore compliant skin with the thicker skin in turn bonded to the structural skin of the aircraft. Vacuum chambers beneath the aircraft structural skin receive air sucked through the porous compliant skin and through communicating holes of the structural skin. One-way valves of flexible or semi-flexible material are inserted into the suction holes of the aircraft structural skin prior to the placement of the porous compliant skin. Low pressure above the aircraft lifting surfaces automatically closes the one-way valves thereby maintaining low pressure above the lifting surfaces and preventing reverse flow from destroying the lift afforded by said surfaces.

Abstract: An implanted tether-free externally powered motor with suitable reduction gearing drives a spirally grooved shaft having a ring housing for a shaft follower pin. A rectangular cross section chamber receives an ejection plate pivoted near one end to a first leg of the ring housing and having a resilient lost motion connection with a second leg of the ring housing near its other end. A compressible sac or pouch extends through said chamber and is fitted at its opposite ends with porcine valves and has conduit extensions outwardly of said valves for connection with the left atrium and the descending thoracic aorta, respectively. During use, the sac or pouch is cyclically compressed by the ejection plate, initially at the end of the ejection plate having the lost motion yielding connection with the follower ring housing, and subsequently at both ends of the ejection plate so that a predetermined volume of blood is delivered on each stroke of the ejection plate to the thoracic aorta.

Abstract: A free-floating ring is disposed in an annular chamber between a fixed outer ring based on the ring rail and an inner ring which is adjustable up and down axially in relation to the outer ring. The outer ring has circumferentially spaced camming slots in its side wall slidably receiving radial cam pins fixed to the inner adjustable ring. One such cam pin on each inner ring is extended to engage slidably within a slot in an actuating bracket secured to a shifter rod extending longitudinally of the ring rail and guided within bearings on the ring rail. Movement of the shifter rod longitudinally of the ring rail in one direction or the other produces raising or lowering of the gang of inner rings to vary the yarn tension. An opening for yarn threading is provided in the annular side wall of each outer ring.

Abstract: The present invention is directed to the method and apparatus for monitoring the electrical resistance characteristic of tree tissue which undergoes a step change of resistance at the "freezing" point. The resistance of the tissue is monitored by converting the resistance magnitude sensed to an electrical signal whose frequency is controlled in accordance with the magnitude of the sensed resistance. The frequency of the electrical signal is detected and a control signal generated in accordance with a predetermined frequency change in a set time period which is accordingly indicative of the step change of tissue resistance. The control signal is thus adapted to activate an alarm device or provide some other indication so that precautionary measures can be taken to protect trees, and more particularly fruit bearing trees from crop damage.

Abstract: A hydraulic pile driver of the kind having at least one hydraulic cylinder for raising a tup. An arrangement is proposed for allowing the use of oil as the hydraulic fluid. The cylinder has a closed chamber around it, to which oil under pressure is supplied. An apertured cuff around or within the cylinder is moved to bring its apertures periodically into and out of registry with apertures in the cylinder wall to connect the cylinder space alternately with said chamber for supply of fluid to the cylinder and to a discharge line for the discharge of fluid from the cylinder. The volume of the chamber is considerably greater than the volume of the cylinder space. The apertures in the cuff and the cylinder wall that register for discharge of the oil from the cylinder have a total cross-sectional area at least equal to that of the cylinder space to make for fast discharge of the oil, thereby ensuring free fall of the tup.

Abstract: For added strength and efficiency, the handles of impact or striking implements are weighted near their striking ends by the addition thereto of carefully pre-weighed veneers or by providing in a solid handle blank a head portion of increased thickness prior to compression. The mass of the handle at the striking end is effectively increased.

Abstract: A new and novel method and means for injecting a cold charge of fuel into an engine to significantly reduce all exhaust pollutants well below the limits required by law.

Abstract: Pre-cut square carpet samples are placed edgewise on the first of a stepped series of pairs of sample conveyor belts, the belts of each pair being separated to accommodate between them a power-operated beveler. An inclined sheet metal backing plate is provided adjacent each pair of the conveyor belts and has a cut-out through which another series of stepped belts operates immediately above each pair of conveyor belts in a plane at right angles thereto, the second series of belts spanning the spaces between the conveyor belts of each pair. Spring pressure bars lie immediately forwardly of and parallel to the belts of the second series and resiliently press the carpet samples into contact with the belts of the second series to assure firm contact of each edge of every carpet sample with the powered beveler as each sample passes thereover.

Abstract: A universally flexible rotor mast for a rotary wing aircraft wherein the universal flexing of the mast is accomplished by the use of multiple elastomer mounts of elastomer metal plate sandwich formation and with high strength cables embedded in the elastomer and anchored to opposing metal plates of the sandwich mounts. A static on-ground rotor mast lock is employed to secure the rotor mast in an upright position, the mast lock is used in conjunction with the elastomer mounts of the flexible mast.