Abstract: A clamping device for exerting clamping forces in two directions to a shank between a pair of spaced clamping members having a transverse stop. The device includes an elongated bolt like body having a pair of axially spaced sections, a head at one end and external threads on an opposite end portion with a nut on the threads for applying a first clamping force to the spaced members. An eccentric section between the shaft sections applies a transverse clamping force to the shank. A pair of flat plates forming the clamping members has two spaced clamping devices and is arranged to slidably clamp to a variety of movable supports. A pair of spaced clamping plates are affixed to the end of a longitudinal frame with the option of a shim to accomodate shanks of smaller sizes.

Abstract: An inflatable bag comprises a small sack which is charged with sodium bicarbonate and accommodating a small externally breakable container filled with an acidic solution. The small sack is enveloped in an inflatable bag member which is made of a synthetic resin having no permeability to the gas which is generated as a reaction between the sodium bicarbonate and the acidic solution. As the small container is collapsed by external pressure, the acidic solution flows out of the container into reaction with the sodium bicarbonate, thereby generating carbon dioxide gas. The small sack is punctured by the gas pressure with a sound of a bang or a whistle and, thereafter, the inflatable gas member is gradually inflated. It is possible to use a plurality of small sacks made of a material which exhibits small extension, such that one small sack is contained in another sack.

Abstract: An agricultural earth engaging implement formed from two metal plate sections. One piece forms a narrow profile shaft and the other forms the earth engaging portion. The shaft is formed to provide a tapered cavity for receiving a tine and the implement is held on to the tine by frictional forces.

Abstract: A weeding tool includes a long metal handle and a metal head attached to the lower end of the handle. The head includes a metal annular, planar ring, the periphery of which includes a plurality of spaced trapezoidal teeth. The entire peripheral edge of the ring is sharpened, and the entire circular inner edge of the annular ring also is sharpened. A pair of cross-braces attach the ring to the lower end of the handle. The tubular metal member and the handle are inclined at an angle of approximately 38 degrees to the plane of the ring. In use, the annular ring is placed on a ground surface and the handle is raised or lowered to aim the front or rear portion of peripheral edge into the ground. As the front edge portion of the ring is pushed into and forward through the soil, it passes over the edge of the ring and through the opening in the ring.

Abstract: A ploughshare assembly includes a ploughshare and a support for the ploughshare. A pair of opposed internal edges defines a recess in the ploughshare. A holder formation on the support includes a foot portion and a pair of grooves adjacent the foot to receive the aforesaid internal edges of the ploughshare so that when the ploughshare is in its working position on the support the foot engages underside the ploughshare and retains it in place. An aperture in the ploughshare behind the internal edges is wider than the separation of the edges and is dimensioned to pass the foot when the ploughshare is sufficiently rotated relative to the support and so allows detachment of the ploughshare from the support. A resilient latch detachably mounted to the support is releasably positionable to engage a detent face on the ploughshare to prevent excessive forward movement of the ploughshare with respect to the support.

Abstract: An undercutting knife for a sod cutting machine consisting of a blade and a blade holder of essentially equal length. The blade is enclosed by the holder except for the projecting forward edge. The blade is light in weight, may have two cutting edges, and is intended to be discarded after use rather than sharpened. The blade maybe frictionally retained within the holder.

Abstract: A plant fertilizer holder, which includes a below-ground needle or spike, and an above-ground figurine or handle, allows the user to insert or withdraw the spike into the ground of a potted plant. The below-ground portion is slotted to dimensions which allow a commercial plant food spike to be placed therein, and to be replaced when that amount is used up. The above-ground portion allows the user to periodically withdraw the spike to check to see if there remains any plant food, and to replace when that supply is exhausted.

Abstract: An improved rotary cultivator includes a prime mover, a gear box and rotary driven tines. An engine mount casing is located between the prime mover and the gear box and is employed in securing such components together in an operative unitary fashion.

Abstract: A gun is provided with a pivoting barrel and a cocking and retaining lever which cocks the hammer and retains the barrel in the firing position. When the lever moves to the unlocking position, the barrel is released and the hammer is cocked. When the barrel is loaded, the barrel is pivoted back to the firing position and the lever is moved to the position to retain the barrel.

Abstract: A postoperative dynamic splint for controlled mobilization of a digit following tendon repair consists of a supportive brace assembly, having an attachment member for attachment of said brace assembly to the distal portion of the arm and the proximal portion of the hand and a tensioning unit which comprises a housing mounted on the supportive brace assembly, a spiral torsion spring mounted at one end to said housing and terminating at its other end to a work arm, which extends out of said housing. The work arm attaches to a rubber band, which is trained under a rotatable roller, mounted on a bracket attached to said brace assembly and at the other end to a connecting member, such as a nail cover, for the affected digit. This allows for extension and flexion of the recuperating digit, so as to prevent adhesion of the tendon to the tendon sheath during the healing process and thus insure full use of the digit after healing.

Abstract: An air weapon air compression system of the type in which air is compressed in a cylinder and expelled through a discharge port, to propel a projectile along the barrel and fire it out of the weapon, by the rapid movement of a piston within the cylinder. Such a system incorporating grooves in one or both of opposed portions of the cylinder and piston, for the transfer of air towards the discharge port during the final compression stage, to enhance the performance of the weapon.

Abstract: A pneumatic gun has a hollow cylindrical bolt which moves in a housing, being spring-biased to a cocked position. The bolt has a pressure inlet which is coupled to an outlet so that, when air under pressure is supplied to the inlet, the pressure and the drag of the air passing through the bolt urges it forward, carrying a projectile into the gun barrel. The air pressure is sustained until the projectile is propelled out of the barrel. A regulator valve reduces the pressure of gas from a holding tank in the weapon to the operating pressure of the control system. The required pressure for the firing valve may be derived from the control system, from a separate regulator, or from the holding tank. In one embodiment, a special firing valve controls the transmission of firing pressure to the bolt. A pneumatic firing control circuit is triggered by one, several, or a continuous series of electronic pulses to produce single, burst, or continuous fire.

Abstract: A toy tea kettle or the like has a spout and whistling means to simulate the sound made by steam escaping from a boiling kettle. The spout has a lid, and the kettle has a toothed rack coupled to the lid for oscillating the lid to simulate the action of an actual kettle lid in response to steam escaping from the spout. The kettle further has a reciprocally movable plunger coupled to the toothed rack for moving the lid to a fully opened position upon depression of the plunger to prepare the kettle for pouring.

Abstract: A cultivator has a blade secured to a frame. The blade is downwardly projected from the frame and has an edge at the forward side thereof. An air injector is provided at a lower portion of the blade. The frame is supported with the blade and the injector above the ground by a pair of supporting wheels and a stand which are changeable to a criss-crossed stored position to permit the cultivator to be moved downwardly to its operative position.

Abstract: A furrow forming apparatus for a seed planter is disclosed wherein the construction facilitates convenient adjustment of spring-biasing exerted on furrow forming disks of the assembly. The apparatus includes a parallel linkage which permits relative vertical movement of the disks. Springs operatively associated with the linkage are positionable for creating either downward or upward pressure on the disks. Adjustment of the springs is accommodated by the provision of an upper support rod which receives upper ends of the springs, with the support rod selectively positionable along upper links of the parallel linkage by the provision of an adjustable rack and pinion mounting arrangement.

Abstract: Agricultural implements are adapted to be concurrently mounted to a three point lifting device of a tractor. Each implement is provided with three connecting elements, each with forked ends. The forked ends of one of the implements have tines separated a greater distance than the tines of the corresponding forks of another agricultural implement, so that the forked ends of one of the implements straddle the corresponding forked ends of another implement. In this way, the implements can be concurrently mounted on the lifting arms of the three point device.

Abstract: A foldable implement carrier is provided with a carriage having at least one support wheel and first and second toolbar sections carried by the carriage. First and second mounting mechanisms are provided for pivotally mounting the first and second toolbar sections respectively to the carriage about first and second vertical pivot axes, respectively, for pivoting movement between a generally transversely aligned end-to-end field configuration and a generally parallel transport configuration. The second pivot axis is located further forward on the carriage than the first pivot axis. First and second motors are provided for effecting pivoting movement of the first and second toolbar sections, respectively.

Abstract: The linkage mechanism between the front and the rear wheels of a farming implement includes a front and a rear arm the free ends of which suspend the respective wheels. Each arm has a transverse bracket near its other end. The bracket defines, at its free end, a pivot joint of a normally generally horizontal connecting rod whose other end is similarly connected to the bracket of the other arm. Each arm is mounted in a respective bearing for swinging about a point to raise or to lower the frame of the implement. The three pivot points associated with each arm define a respective linkage triangle. The geometry of the linkage triangles is developed from a reference triangle, divided by a median into two triangles of which one corresponds to one of the linkage triangles and the other corresponds to or is similar to the other one of said linkage triangles. The invention facilitates the designing of the linkage.

Abstract: A system is provided for guiding a tool assembly that extends forwardly from an automotive vehicle. The system comprises a connecting member (7) having one end connected to the tool assembly, and being pivotally mounted to the vehicle frame intermediate its length. The other end of the connecting member (7) is pivotally connected to one end of an auxiliary tie rod (10), and the other end of the tie rod (10) is pivotally connected to one of the arms of the pair of steering knuckles comprising the vehicle's conventional steering system. The tool assembly is thus directed along a trajectory exactly corresponding with the path of the vehicle.

Abstract: The invention is a self contained infant restraining device (10) used for performing cardiopulmonary resuscitation or other emergency treatment on a patient up to 2 years old. The device (10) has 2 sections (12 and 14) which are normally attached together by use of latches (16). Top section (12) is used to carry and restrain the infant's body. Bottom section (14) contains 2 drawers (52) which are used to carry drugs, medical supplies and instruments for treatment of the infant patient. The top section (12) may be quickly released from bottom section (14) if the user wants to make top section (12) lighter and more portable. The infant's body is placed in indentation (36) of the top surface (28) and securely restrained by a plurality of straps (44) using hook and pile fasteners (46). The infant's head is restrained in head indentation (26) which is equipped with two small sand bag pillows (32) attached to indentation (26) by hook and pile fasterners (33) and (34).