Abstract: An improved waterbed structure including an upwardly opening frame with a horizontal watermattress supporting platform and vertical longitudinally and laterally extending upwardly projecting side and end retaining boards about the perimeter of the platform, a waterfilled watermattress of soft flexible sheet plastic material with a bottom wall supported atop the platform, side and end walls supported by the side and end boards and a normally substantially flat horizontal user supporting top wall. The watermattress includes a multiplicity of longitudinally and laterally spaced elongate vertically extending and downwardly tapering support spring parts of soft resilient interconnected cellular material in load supporting relationship between the top and bottom walls.

Abstract: An intramedullary nail comprising an elongate tubular rod with upper proximal and lower distal ends and positioned within and extending longitudinally of the intramedullary canal of a fractured bone. A pair of adjacent, elongate anchor blades with upper and lower ends are positioned with their upper end portions within a transverse slot in the distal end of the rod and are connected therewith by a single transverse pivot pin. The blades normally extend downwardly from the rod and are pivoted radially outwardly from opposite sides of the rod to deployed positions where they establish anchoring engagement within the bone. The blades have cam parts and stop edges at their upper ends. An elongate setting tool is slidably engaged in and shiftable downwardly in the rod. The tool has a downwardly-disposed surface normally engaging said cam parts to pivot the blades to their deployed positions when the tool is moved downwardly and to establish stopped engagement with said stop edges when the blades are deployed.

Abstract: A manually engagable, portable and disposable tester for torque limiting and torque indicating screwdrivers comprising a horizontal hand-held plate with top and bottom surfaces, front and rear ends, and opposite sides, an elongate deflection beam with front and rear ends in spaced parallel relationship above the plate, a vertical mounting pin at the front end of the beam engaged in the plate for free rotation and against horizontal and vertical displacement, a driver part with a vertical driving opening to establish rotary driving engagement with a screwdriver and fixed to and projecting rearwardly from the rear end of the beam, a pair of laterally spaced vertical reaction posts projecting up from the plate and in sliding bearing engagement with opposite sides of the beam at the rear end thereof, an elongate horizontal pointer with a rear end fixed to the driver and projecting forward in vertical spaced relationship with the beam and having a front end terminating forward of the beam, and a laterally extendin

Abstract: An elongate, horizontally upwardly opening particulate material storing receptacle with vertical front and end walls, upwardly projecting side walls, a longitudinally extending bottom wall, a material discharge opening at the front end of the receptacle, an elongate auger extending longitudinally within the receptacle from the rear wall to the discharge opening, a driven shaft on the auger and projecting rearwardly from the receptacle; and, a drive motor unit drivingly coupled with the driven shaft, the improvements comprise: mounting structure pivotally supporting the upper rear end of the receptacle about a horizontal transverse turning axis spaced vertically from the axis of the shaft, a cam plate with circumferentially spaced, rearwardly disposed lobes and recesses positioned rearward of the receptacle and carried by the shaft; and, a forwardly disposed reaction pose mounted rearward of the plate and in reacting driving engagement therewith to sequentially pivot the receptacle about the turning axis when

Abstract: A cruciform internal combustion reciprocating engine characterized by two right angularly related pairs of axially spaced cylinders with related piston units including pairs of axially aligned, axially spaced pistons, each piston is engaged in one of the cylinders. The pistons of each unit are rigidly connected by an elongate yoke. A crank shaft has an eccentric crank pin at right angle to the axes of and positioned between the cylinders of the pairs of cylinders. A double isosceles sliding block linkage motion-translating mechanism drivingly couples the crank pin and the yokes and includes a twin eccentric disc driver rotatably carried by the crank pin with the discs thereof rotatably engaged with the yokes. The pistons of the piston units include elongate annular bearing sleeves in rotary bearing engagement about the pistons and in linear sliding and rotary bearing engagement with the bores of related cylinders.

Abstract: An improved pick tool for piercing, prying and moving small parts within assemblies of delicate and fragile parts. The pick includes an elongate, tubular lever arm with front and rear ends. A manually-engagable handle is related to the rear end of the arm and is shiftable axially relative thereto. An elongate shaft with a pointed front end and a rear end fixed to the handle is slidably engaged within the arm. A compression spring within the arm and engaging the shaft yieldingly holds the shaft and the handle in a rear unactuated position where the pointed front end portion of the shaft occurs within the forward portion of the arm. The handle and shaft are shiftable forwardly to an actuated position where the pointed front portion of the shaft projects freely forwardly from the arm. A tubular work-engaging bushing of soft, flexible and resilient plastic material projects forwardly from the arm and normally shrouds the pointed end of the shaft.

Abstract: A controller for an electric resistance waterbed mattress heater supplied with electric current by an elongate power cord extending between the heater and a power service outlet. The controller includes a small diameter elongate cylindrical housing in which an adjustable on and off switch is mounted and into which the cord is extended and connected with the switch. The switch includes a Bourdon tube to actuate the switch between opened and closed positions when the tube is caused to deflect by changes of pressure therein. A capillary tube is connected with and extends from the Bourdon tube to the exterior of the housing and about which it is formed and supported. An adjusting knob is positioned at one end of the body and is coupled with a part of the switch to move switch parts relative to each other and to the Bourdon tube to adjust and set the operating position of parts of the switch.

Abstract: An improved single-pass hook and blade type agricultural shear with a central pivotal axis. The shear includes an elongate hook with an outer end and an inner end pivotally supported about said axis. Said hook has a substantially radially extending circumferentially disposed concave branch supporting shearing edge. The shear next includes an elongate blade with an outer end and an inner end supported about said axis. Said blade has a substantially radially extending circumferentially disposed convex primary cutting edge opposing said shearing edge. The cutting edge has an outer portion and has an inner portion circumferentially offset from said outer portion and has a substantially circumferentially extending radially inwardly disposed intermediate cutting edge extending between the outer and inner portions of said primary cutting edge. The outer portion of the primary cutting edge and the intermediate cutting edge define a sharp pointed lancet blade between the ends of the primary cutting edge.

Abstract: An adjustable, click-type, torque wrench comprising an elongate tubular arm with front and rear ends, a work engaging head on an axis normal to the axis of the arm, an elongate lever projecting rearward from the head and freely into the arm, a first pivot pin pivotally connecting the front end portions of the lever and the arm together on an axis parallel with the axis of the head, an elongate link with front and rear ends within the arm, a second pivot pin connecting the front end of the link to the rear end of the lever on an axis parallel with the first pivot pin, an elongate fulcrum block slidably engaged in the arm and freely engaged about the link, a fulcrum pin engaged through the block and the link on an axis parallel with the pivot pins to provide for pivotal movement of the link relative to the block, a plunger in the arm rearward from the link, a cam block with flat faces normally in flat engagement with flat opposing cam seats on the link and the plunger; and a spring yieldingly urging the plunger

Abstract: An improved orthopedic implant device comprising an elongate shaft and an elongate sleeve engaged about and shiftable longitudinally of the shaft a plurality of elongate struts spaced circumferentially about the sleeve and shaft and shiftable between unactuated positions where they are parallel with the sleeve and actuated positions where they extend radially outward from the sleeve, pivot means connecting one end of the shafts with the sleeve, lever arms on the shafts projecting into the sleeve from the pivot means therefor and cam means between the lever arms and the shaft whereby the lever arms are pivoted between the unactuated and actuated positions upon axial shifting of the shaft relative to the sleeve.

Abstract: An improved handle structure for manually engagable, manually manipulated implements and devices such as hammers, saws, hand power tools and the like. The handle structure is an elongate structure adapted to be comfortably gripped in a hand of a user. The handle is resilient and yieldingly compressable within the grip of a user on a plane which is normally substantially parallel to the mean plane of the palm of a user's hand and which provides a non-static, shock absorbing grip structure. The handle structure is substantially rigid and non-yielding on that plane which is normal to said plane of the user's hand. The handle further includes a soft resilient fingertip supporting pad that conforms with and yieldingly supports the user's fingers and soft resilient palm engaging parts that yieldingly conform with the palm of the user's hand at primary force transmitting points between the palm and the handle structure and which provides for circulation of air therebetween.

Abstract: Improved, manually-operable, adjusting mechanisms for click-type, adjustable torque wrenches which include manually-engageable, resilient, plastic, tubular handgrips slidably engaged about the rear end portions of elongate, tubular, metal wrench lever arms and which are shiftable longitudinally from normal, forward positions in rotary-driving engagement with the arms to actuated rear positions out of rotary-driving engagement with the arm. The invention resides in an improved locking mechanism releaseably locking the grip in rotary-driving engagement with the arm when in its normal position and yieldingly permitting rotation of the grip relative to the arm when turning forces between the arm and grip exceed the shear strength of the material of which the grip is made.