Abstract: A solid, self lubricating bearing material especially useful as a sliding electrical contact in vacuum environments comprising a high temperature lubricant chosen from AlPO.sub.4, BaF.sub.2, CaF.sub.2 and mixtures thereof, a lower temperature solid lubricant chosen from the chalcogenides which exhibit lubricity, & a silver matrix, the ratio of high temperature lubricant to silver being about 1:4 to 1:10, the ratio of lower temperature lubricant to silver being about 1:2 to 1:8. Filler materials up to 20% by weight chosen from aluminum oxide, silicon nitride, molybdenum silicide, metals from Group 8 of the Periodic Table, and mixtures thereof may be added to alter the hardness of the material.

Abstract: An improved sanding block is disclosed for receiving and tensioning a continuous or endless sandpaper or other abrasive wrap-around belt about the sanding block's periphery. The block effectively uses two parts, so shaped that when assembled within an endless abrasive belt, they provide a wedging action which effectively elongates or expands the periphery of the tool to properly tension the belt.

Abstract: A movable support assembly for supporting a chain-drive board infeed system. The chain-drive board infeed system feeds a board into a board edger or other similar woodworking apparatus. The movable support assembly includes a pair of frame rails for supporting the chain drive infeed system. Bearings are provided for moving the mounting frame in a lateral direction perpendicular to a predetermined infeed line of direction. This enables the mounting frame to be laterally positioned to position a board in a predetermined relationship with respect to a fixed position board edger. The frame rails are maintained in a generally parallel relationship with respect to the given infeed direction by a torque tube and linkage assembly. Both rollway and slide bearings are provided.

Abstract: A tool stand for orienting and holding a tool such as a core drilling apparatus for sampling concrete or earth formations, comprising a base, an elongated column projecting from said base, a carriage means supported by enclosing the column, the carriage means being adjustable to fit closely about the column and having a rack on said column with interengaging pinion means in the carriage for translation of the carriage along the column. The carriage is adapted to receive a pneumatic drilling device or additional columns, the additional columns being positioned at right angles to the first column. Columns are equipped with interfitting end hardware so that a plurality of columns may be joined endwise.

Abstract: A handle or grip for a ski pole comprising a body adapted to be grasped by the hand and having a means encircling the back of the hand of the user which means is resiliently mounted to the grip and extends downwardly within the grasp of the user, then around the back of the user's hand or wrist. The hand encircling portion is free at its upper end to deflect outwardly at the top of the grip to effect release from the user's hand. The resilient mount permits improved forward reach during use of the ski pole.

Abstract: A wooden structural member or joist having a continuous tension chord and a continuous compression chord which are spaced apart and parallel. The tension chord and compression chord form the effective top and bottom of the joist, the actual orientation depending on the type of load imposed upon the joist. Dentations or dentated panels connect the side edges of the tension chord to the side edges of the compression chord, thus forming the two sides of the joist which has a hollow rectangular cross sectional shape. The dentations are planar with two parallel edges and two non-parallel edges tapering together forming a broad end and a narrow end. The face of the broad end is glued to the side edge of the compression chord, and the face of the narrow end is glued to the side edge of the tension chord. The sides of the joist are discontinuous because of the dentated shape. The dentations are coordinately spaced to allow pipes, conduits, ducts and other equipment to pass transversely through the joist.

Abstract: A suction and blower fan device of simple construction is disclosed for use with a rotary mower blade mounted upon an upright shaft within a mower housing. The fan device operates to improve the cutting efficiency of the mower blade and functions to produce scouring of the mower housing to a degree, reducing or preventing the objectionable accumulation of clippings on the inner housing surfaces.

Abstract: A stove for burning combustible materials having a fire box at least in part lined with a fire resistant lining and having an opening across a front surface thereof, said opening defined by a hearth and an upper lip and equipped with pivotally mounted door means mounted for rotation within the stove along horizontally disposed axes so that the opening can be effectively closed by rotation of the upper and lower doors into their closed position. The hearth may be equipped with an upstanding transparent panel to permit viewing of the fire when the doors are open. Access to the fire box for insertion of additional flammable materials is provided by a door means positioned at the end of said fire box. Protection for the transparent panel to prevent logs from rolling against it may be provided by elongated means extending across the front opening at or above the rearward portion of the hearth.

Abstract: A two-part stress-reliever employs a first member supporting an upright flange and a second member bifurcated and straddling said flange. An elongated slot in the flange receives a pass-through pivot pin carried by the second member and said slot also includes a resilient body biasing the pivot pin to its normal unstressed position in said slot.

Abstract: The present invention relates, in a door lock in which a door knob is locked when the door is locked, to a knob for a door lock which is not disengaged from a lock device and secure even if the knob is intended to be twisted or pulled out resulting from the outside attack.

Abstract: A method for providing hydrophilic contact lenses with identifying means incorporated into lens blanks and the resulting lenses in which an elongated identifying strand, fiber, or rod is molded into a cylindrical lens blank rod positioned substantially parallel to the axis of the rod. Lens blanks or buttons are cut transversely to the axis and the lens blanks ground to the proper optical curvatures. The contact lens blanks each contain portions of the identifying means. The finished contact lenses each contain short segments of the identifying means thereby allowing classification of the contact lenses as to right or left eye, magnification power or other characteristic.

Abstract: Incubation apparatus for use in hatching salmonid eggs in the production of the intermediate stage alevins and the ultimate fish fry is provided. Incubation trays are stacked in a container to which hatchery water is supplied and from which it departs, in the interval passing through the trays and their contents of substrate material and the eggs and/or alevins. The trays are designed to create desirable currents in water flow to facilitate dissipation of gaseous bubbles and, when the time comes, to urge and direct the outward movement of the fry.

Abstract: A rectangular rearing tank is provided with an underflow outlet conduit extending to beneath a tank corner where it couples to a smooth-curved transitional conduit section forming a bottom part of a weir chamber through which both underflow and overflow effluent from the tank may be passed in a stress-relieving manner that avoids injury or death to fry and fingerlings.

Abstract: A kite-flying control reel having a spool rotatably mounted on an axle. A three part handle has the axle affixed at right angles to a first portion. Second and third handle portions extend from the first portion in directions parallel to and away from the axle. A lever-operated, spring-loaded ratchet and pawl assembly locks the spool to the handle. A releasable clutch mechanism couples a spool crank arm to the spool.

Abstract: A reel assembly for controlling line cord winding in kite flying includes an elongated main hand hold member adapted for controlling the winding of the reel assembly and a spool member adapted for receiving, storing, and releasing the cord. The spool member includes a plurality of secondary hand hold members extending axially with respect to the spool member. At least one support member extends radially from the central axis of the spool member for fixably mounting the secondary hand hold members spaced remotely from each other and from the axis of the spool member. The main hand hold member extends axially through the center of the support members and remotely from the spool member. An axle extends from the main hand hold member for supporting the spool member, which is releasably locked to the axle by a clutch mechanism.

Abstract: A simplified loading mechanism for placing small boats onto a framework including front and rear roller means, the framework being attached to the upper surface of a vehicle, is described. The rear roller acts as a winch mechanism and line storage for a pair of parallel running lines extending forwardly about the lower surface of the front roller and then running rearwardly over the top of the front roller and top of the rear roller to a straddle or bail for attachment to the gunwales of a small boat. The front and rear straddle lines are attached at spaced-apart locations upon the gunwales of the boat at a location whereby the run of the rearward straddle line will engage the rear roller when the boat is tilted upwardly with the transom thereof resting on the ground behind the vehicle and the bow of the boat pointed upwardly.

Abstract: An electronically controlled token engraving apparatus, wherein a slide moves blank tokens from a blank token receiving station to an engraving station and, after engraving, to an ejection station, under the control of a digital logic system is disclosed. The slide includes a token receiving aperture that receives a blank token at the blank token receiving station. At the engraving station, a typehead comprising a plurality of radial type bars is manually rotated by an operator until the desired character type is located above the upper peripheral edge of the token. Thereafter, actuation of a switch causes a toggle press to press the end of the type bar and, thus, the type downwardly against the token causing a character to be engraved therein. Just prior to a character being engraved, the token is indexed a predetermined distance. After a character is engraved, the typehead is manually rotated until the next desired character type is located above the upper peripheral edge of the token.

Abstract: A new concept in polymeric prosthetic devices having a portion thereof composed of a hydrophilic polymer is described herein in which distortions and stresses upon the device due to water absorption are minimized or eliminated. Physical properties of the various portions of the device may thus be varied to provide the particular physical parameters required. Compositions of matter and methods of manufacturing the novel prosthetic devices are described. The composition of matter is a polymer which includes a water soluble solid inert substance removable by exposure to water during hydration of the hydrophilic portion of the device, thus eliminating distortions and stresses therein. The hydrophilic polymer described is useful, for example, as one component part of such prosthetic devices as a hard-soft contact lens, cardiovascular implants, etc. useful in aqueous environment wherein stress and deformation of the polymer shape due to hydration must be minimized.

Abstract: A bundle for shipping and the storage of a plurality of elongated pipe lengths of a common size arranged in tiers is disclosed in which the longitudinal axes of the pipes in the bundle are disposed parallel to an elongated base formed of spaced-apart transverse sleepers. The pipes in each tier are separated by divider blocks standing on the sleepers and separating overlying sleepers from those there-below a distance substantially equal to or greater than the pipe diameter. Strapping encircles the sleepers and the dividers and the pipe therebetween to secure the bundle in a flexible manner throughout its length to accommodate the rigors of hoisting and transporting its storage in multiple bundles and on uneven supporting surfaces.