Abstract: This invention relates to an improved racquet frame of the type having a stringable head characterized by a construction wherein said head comprises a loop formed intermediate the ends of an elongate rod of springable material, said end portions being crossed over one another to define the throat and then bent into spaced substantially parallel relation to produce the handle. Means are interposed between the handle-forming limbs within the throat operative upon actuation to vary the spacing therebetween and thus enlarge or reduce the size of the head thereby varying the string tension to suit the wishes of the user. The crossed over section at the juncture between the head and handle have opposed surfaces thereof cut away to produce elongate notches that cooperate with one another to define a string-receiving slot therebetween atop which is placed an apertured member, the apertures of which overlie the slot and maintain the strings in fixed-spaced relation within the crossed over section.

Abstract: This invention relates to improvements in a heated dispenser for hot toppings and the like of the type having an immersible pump and spigot subassembly detachably mounted in a removable vessel containing the topping or other pumpable food product which is, in turn contained inside a double-walled electrically-heated housing, such improvement comprising an electrically-heated saddle located atop the rim of the housing is position to cradle the spigot so as to prevent the material therein from congealing while, at the same time, permitting removal of the pump subassembly to gain access to the storage vessel without having to disconnect any wires.

Abstract: This invention relates to a novel method for detachably fastening cylindrical cans together in assembled relation which includes mounting a generally rectangular ring-like insert on a compressible pick-up member carried by a mandrel preparatory to applying an adhesive to the exterior insert surfaces, arranging the cans in groups of four or six defining an open rectangular array, inserting one or more mandrels carrying precoated inserts into the center of the array, closing the array so as to press the adhesive-coated portions of the inserts into concave engagement with the can walls as they compress the mandrel pick-ups, and withdrawing the mandrel once the adhesive has set.

Abstract: This invention relates to a novel apparatus for cutting mats of compressible insulation materials arranged in stacks into small intricately shaped pieces which comprises an elevatable platform which raises the stack and compresses same against the undersurface of a rigid pattern supported in spaced relation beneath an overhead framework on uprights which are rotatable and include an offset portion sized and positioned to receive that part of the fabric cutter overhanging the axis of upright rotation regardless of the position of the cutter adjacent the edge of the pattern.

Abstract: This invention relates to a novel tent construction characterized by at least two, and preferably four, identical subframes, each pair of which is connected together at the adjacent upper outside corners to produce in unfolded condition an inverted generally V-shaped frame when the lower marginal edges thereof are maintained in maximum fixed-spaced relation to one another by a foldable fabric floor stretched therebetween. When four subframes are employed, the second pair is connected to the first in end-to-end relation so as to double the length of the resulting frame. Each subframe includes a unique molded hub at the center thereof having four equiangularly-spaced sockets therein shaped to receive a ball on the inner end of a springable rib-forming strut for movement between a folded position nested alongside one another and an unfolded position arching radially therefrom in umbrella-like fashion.

Abstract: This invention relates to an improved steel racking apparatus characterized by a rack having tiers of open sided drawer-like receptacles on at least one side thereof operable from one end and an elevator on said end that moves up and down while carrying a laterally movable cage positionable to both actuate and observe the loading and unloading of the receptacles. The invention also encompasses the combination which comprises one such elevator equipped rack and at least a second rack without the elevator positioned in spaced relation alongside thereof in position such that the receptacles of both racks opening onto the aisle therebetween can be serviced from the cage.

Abstract: This invention relates to a valve characterized by a hollow cylindrical body, the interior of which houses a segmented conical plug for axial movement with its apex pointed upstream. A frustoconical seat inside the hollow body also faces upstream and cooperates with similarly shaped surfaces at the base of each plug segment to cam the latter into cone-forming relation upon axial movement thereof in a downstream direction. In closed position these opposed frustoconical surfaces mate to define a continuous annular fluid tight seal. Downstream of the segmented plug subassembly is an externally ribbed tubular slide mounted for limited reciprocating movement in an axial direction back and forth between the axially spaced endwalls of an inwardly opening annular groove. Externally operated means are provided which, upon actuation, shift the slide between its extended upstream position and its retracted downstream one by exerting a suitable axially directed force against the appropriate face of the rib.

Abstract: This invention relates to a novel tubing bender characterized by a horizontal bed atop which is mounted a template and a fixed block mounting a hollow tubular slide member for non-rotatable longitudinal slidable movement. The tube, in turn, mounts a longitudinally adjustable combination stop and slide support mechanism which selectively engages notches in the template to maintain the tube in longitudinally adjusted position relative to the block. A bending head is mounted on the end of the tubular member for rotatable adjustment relative thereto. The tube is slotted longitudinally both top and bottom to house internally an externally actuated vise mechanism that remains fixed relative to the block atop which it is mounted while the tube and bending head move as a unit longitudinally thereof.

Abstract: This invention relates to an improved three-point support subassembly for pivoted machine tool turntables that is characterized by a pair of floating pads retained in cavities on the underside of the turntable that slide along the opposed planar surface of a stationary bedplate therebeneath and a ball and socket pivotal connection that allows the turntable to swing on a vertical axis defined by the latter as well as tilt relative thereto. The stem portion of the pin is journalled for rotation about a vertical axis in the bedplate while the spherical portion atop said stem is connected to the turntable for conjoint movement in a horizontal plane due to a loose fitting coupling therebetween. The socket journalling the spherical portion of the pivot pin includes upper and lower segments independently adjustable relative to one another and to the turntable for purposes of leveling the latter. Adjustable abutments also engage the pads and are used to raise or lower the turntable relative thereto.

Abstract: This invention relates to an electric impact tool characterized by a pair of electric motor-driven counterrotating flywheels, at least one of which is movable relative to the other from a retracted inoperative position into an extended operative one closely adjacent the other flywheel whereby a ram is squeezed therebetween and impelled forward at high speed against a workpiece. The nosepiece of the tool frame is retractable although normally extended due to the spring bias urging it and the movable flywheel to which it is mechanically linked into disengaged position. These elements cooperate with one another and with a manually-actuated trigger such that the latter must be depressed and the nosepiece retracted in order to engage the high energy friction clutch defined by the flywheels so as to operate the ram. A flywheel speed control is provided for matching the ram impact to the workload.

Abstract: This invention relates to split ring markers fabricated in whole or in part from a radiopaque material, usually metal, having the terminal ends thereof and a medial portion formed to define eyelets by means of which said marker can be sutured to the tissue at the site of an anastomosis to provide a visual indication of its location when examined fluoroscopically.

Abstract: This invention relates to a method and apparatus for simultaneously determining the sample to detector distance (R.sub.o) and the angle between the surface normal and the incident X-ray beam (.beta.) of a position sensitive X-ray detection device for use in stress analysis determinations on an unknown sample. More specifically, the apparatus comprises a stressable sheet, means capable of being detachably fastened to opposite ends of the sheet, spreader means interposed between the means fastened to opposite ends of the sheet operative upon actuation to spread said means apart and tension the sheet, and a strain-free film coating one surface of the sheet.

Abstract: This invention relates to a hydraulic servomotor-actuated folding mechanism for swinging the hinged extension of an implement frame horizontally between an extended and a retracted position characterized by a two-part foldable strut, the adjacent ends of its sections being hingedly interconnected for pivotal movement, a first link connected between the piston rod of the servomotor and the foldable strut section, and a second link pivotally connected to the main strut section at a point displaced from the pivotal connection between its sections, said second link having its other end connected to the first link at a point intermediate its ends so as to cooperate therewith and with the strut sections to define a pair of fixed length lever arms movable upon actuation between a crossed relation and a side-by-side relation to effect folding and unfolding of the strut.

Abstract: This invention relates to a reticle for riflescopes and the like having crossed filaments defining the aiming reference, the center sections of such wires being flattened in a direction parallel to the viewing axis.