Abstract: A handle post for attachment to a skateboard, the post having a socket in the lower end thereof, an anchor piece in the socket and a tension bar extending between the anchor piece and the top of the post. Stirrups having portions engageable with the underside of the skateboard are adjustably attached along opposite sides of the handle post, to the anchor piece to accomodate skateboards of different thicknesses and widths.

Abstract: A barrier for barring the opening of a sliding window, door, etc., from intrusion from the exterior of a building or vehicle, the barrier being collapsible to permit escape of persons from the inside of the building or vehicle through the open window in the event of fire or other emergency. The barrier also constrains the window or door to move in a straight line parallel motion to prevent binding or sticking of the same in its slide bearings during opening or closing of the window or door.

Abstract: The device has a slitted spool and a slitted sleeve thereabout, each having a longitudinal slot registrable with each other, the spool being detachably mounted on a hollow handle having a slot registrable with the slots in the spool and sleeve. The handle contains a longitudinally movable comb extendable to comb a lock of hair and retractable for drawing the end portion of the lock into the registered slots. The handle and sleeve are manipulated to dispose the lock end portion between the spool and the sleeve, and anchor the same therebetween, further manipulation of the handle turning the spool and sleeve as a unit for winding the lock of hair into a curl coiled about the sleeve. A selectively positionable clasp holds the coiled hair in place as close to the scalp as desired.

Abstract: A method of stringing tennis rackets and the resultant racket therefrom in which the string is secured to the racket frame in the form of three isolated sections; a peripheral section, a working main string section and a working cross string section. Each of these sections is formed from a single length of string and is tied off onto itself so that any section can be replaced without disturbing the other two. The peripheral section is made up of three vertical strands at either side of the space within the racket frame, and three horizontal strands at the top and bottom, respectively, of this space. The working main string section is made up of vertical strands occupying the space between the two sides of the peripheral section and the working cross string section is made up of horizontal strands positioned between the horizontal borders of the peripheral section. The area enclosed by the peripheral section generally defines the "sweet spot" of the racket.

Abstract: A device for vaporizing the gasoline droplets in air-fuel mixtures from conventional carburetors to improve fuel combustion in internal combustion engines. The device has a relatively thin, box-shaped body enclosing flat upper and lower chambers separated by a thin aluminum partition, the chambers being of equal size and shape. The body has an opening in its top into the upper chamber, offset from the longitudinal center of the chamber, and an aligned opening in its bottom, and is designed for installation between the carburetor and intake manifold of an internal combustion engine. The thin aluminum partition has two transverse slots, one offset in one longitudinal direction and the other offset in the other longitudinal direction from the aligned openings in the body of the device. When the device is in use, air-fuel mixtures from the carburetor pass into the upper chamber from the opening in its top, where they are deflected in the direction of one or both of the transverse slots.

Abstract: A device for rapidly winding a load of paper tape from a computer into a relatively tight roll that can be fed directly to a phototypesetting machine. The device has a round deck, positioned to rotate in a horizontal plane on which are mounted three posts. The posts are equiangularly spaced around the center of the deck to serve as a hub about which the tape roll is formed. Each post has a slot to receive the tape and one end of the tape is threaded through the slot of one of the posts and bent around that post prior to the winding procedure. An electric motor then drives the deck in a spinning motion about its axis to rapidly wind the tape around the three posts. Two tension rollers are mounted at the periphery of the deck to guide the incoming tape and hold it under sufficient tension to ensure the formation of a relatively tight roll during the winding operation.

Abstract: An aquarium having a tank with a flat, built-in aerator mounted at the rear. The aerator includes a housing having a number of narrow internal baffles arranged to form a zig-zag passageway for the upward flow of air into a space in the top of the housing. The bottom of the zig-zag passageway is disposed above a clear space in the lower part of the aerator housing, and each of the baffles runs from a first end at a first side edge to termination short of the opposite side edge of the housing. The baffles extend alternately from the opposite sides of the aerator housing, and each slopes slightly upwardly from its first end to its other end within the housing. The baffles are so arranged that each adjacent pair defines a transverse leg of the zig-zag passageway extending from one side of the aerator housing to the other and diverging vertically from a restricted entrance end to a far end where the entrance to the next higher leg of the passageway is situated.

Abstract: The plunger of a hypodermic syringe has the usual head and shank, but the shank is of articulate construction to permit change from a normal straight operating configuration to an angular configuration, at which angular configuration the shank engages the syringe barrel to control the position of the plunger head. In some embodiments the shank bends through an angle of 180.degree. to lie along the exterior of the barrel and thereby straddle the rim of the barrel to cooperate therewith to limit movement of the plunger head inwardly of the barrel. The straddling folded shank may engage the barrel rim at selected points of the shank to immobilize the plunger head at selected positions. In other embodiments the articulate shank bends through only a small angle to cooperate with the barrel rim to control the plunger head.

Abstract: A dop stick with an oval cabachon adhesively mounted thereon for application to a grinding stone has two axes of rotation, one axis to determine the longitudinal curvature of the face of the cabachon, the other to determine the transverse curvature, and may be moved at random about the two axes of rotation simultaneously without departing from accurate positioning of the cabachon for correctly grinding the cabachon face.

Abstract: A truck to haul live poultry has compartments arranged in horizontal rows and vertical tiers, there being two rows of tiers opening onto the opposite sides respectively of the truck. The walls of the compartments are formed by wall members incorporating vertical tubes and the floors and ceilings are formed by horizontal panels. Vertical rods extend upward from the truck bed through the horizontal panels and through the vertical tubes of the wall members to form a unified structure. The invention teaches that the number of vertical rods required may be minimized by employing special brackets to anchor the wall members and/or by making some wall members angular instead of linear. The number of vertical rods required for a horizontal row of N number of vertical tiers of compartments is reduced to 2N + 2.

Abstract: A self-contained web severing device particularly intended for the folder unit of a continuous web printing press comprising a frame supporting a web severing blade in concealed position, the latter being released for spring operated web severing movement by break sensing devices in the paths of those webs passing through the severing device. The blade also acts to deflect the leading end of the severed web or webs out of the folder unit. Safety means prevent accidental release of the blade during periods when the web or webs are being threaded through the press or the press is being otherwise worked on.

Abstract: A method of permanently uniting two cylindrical members with mating end edges which cooperate to define a circumferential groove that is closed except for a continuous inner circumferential slot defined by the end edges. In the method, the mating end edges of the two members are brought together to imprison the peripheral bead of a flexible diaphragm under axial compression in the circumferential groove so that the web of the diaphragm extends through the continuous circumferential slot. The two cylindrical members are then held together under pressure while a cap with a cylindrical skirt is telescoped onto one member past the joint between its mating edge and that of the other member. Prior to this telescoping step, the inner wall of the skirt is coated with a suitable adhesive to provide an adhesive layer between the confronting skirt and cylindrical wall areas of the final assembly. The two cylindrical members are maintained under pressure until the adhesive sets, after which the pressure is released.

Abstract: Apparatus for converting heat derived from a heated fluid into mechanical energy comprising a double-walled shell having a high coefficient of thermal expansion and other preferred qualities, such as a relatively high coefficient of heat conductivity and low specific heat, the shell being immersed in a fluid within a container having a relatively low coefficient of thermal expansion and other qualities. When heated fluid is passed between the walls of the shell, expansion of the latter displaces fluid from within the container to actuate a fluid operated device. Alternatively, passage of a cold fluid between the walls of the shell causes the shell to contract and thus enable the displaced fluid to return into the container to complete an operating cycle.

Abstract: Apparatus for elctrolytically removing silver from a spent photographic processing solution. A thin flexible cathode sheet is removably fitted within the inside periphery of a tank which receives the solution. A lid unit is removably secured over the tank and rotatably supports an anode assembly extending within the tank. A power unit is removably secured on the lid unit and carries a motor for driving the anode assembly to circulate the solution. An electric power conducting circuit in the power unit is automatically connected to the anode assembly and the cathode when the power unit is secured.

Abstract: An intake tube is inserted into a cavity in a patient's body to withdraw fluid therefrom, and means including an outlet tube cooperates with the intake tube to form a passage that is connected to a vacuum source to withdraw the body fluid. The outlet tube has an outlet port for releasable connection to the vacuum source, and a removable plug closes the outlet port when a vacuum is not needed. A thin-walled, flexible reservoir communicates with said passage to accumulate fluid that may flow from the body cavity in the absence of a vacuum. In some embodiments of the invention, the reservoir encloses the two confronting ends of the intake tube and the outlet tube, the arrangement being such that when a vacuum is applied to the outlet tube, fluid flows directly from the intake tube to and through the outlet tube; and in the absence of a vacuum, fluid flows from the intake tube directly to the reservoir.

Abstract: Solid transparent plastic material has frosted surfaces and contains lights the rays of which are diffused by the surfaces and viewed as a solid field of luminous light. Preferably, the lights are variously colored, for example, red, blue and green, and are energized by suitable switching means to produce color fields in each of the colors and in the pastel or sum colors thereof. This color field effect is incorporated in a plastic guitar, energization of the lights therein being responsive to tone frequencies as the guitar is played, to provide a spectacular display of light and whereby the guitar player sees his music in color fields that change hue.

Abstract: A rack for holding the sides of a flat-sided plastic napkin holder vertical while the bottom of the holder is being molded. The rack includes a wire basket of generally box-like shape with vertical sides and a bottom formed from segments of stiff wire. In addition to the wire basket, the rack includes a rectangular sheet of relatively stiff, resilient polyethylene which is held fast at the middle by the bottom of the basket frame so that the halves of the sheet extend upwardly and press outwardly against two of the basket sides to give it a U-shaped profile in side view. The wire basket has three short legs to support it firmly on the rim of a mold for casting the bottom of the napkin holder. To use the device, preformed sides of the plastic napkin holder are forced between the two halves of the polyethylene sheet and confronting sides of the wire basket so that the pressing halves of the sheet hold the napkin holder sides in position against the basket without slippage.

Abstract: A one-story building having a concrete foundation, a wooden roof and interior and exterior walls of precast concrete panel construction, the walls being formed from precast concrete panels and installed in place without benefit of rigid interconnecting joints therebetween. Additionally, the wall panels are connected to the foundation at their bottom ends, and to the wooden roof at their upper ends, by means of nonrigid, as opposed to rigid, connection. Each of the exterior wall panels has an inner, structural slab of steel-reinforced concrete, a thin intermediate layer of a compressive, insulative material and an equally thin outer layer, or skin, of wire-reinforced concrete. The interior walls of the building are interrupted by door openings, or the like, to permit expansion and contraction of each wall segment as an independent unit.