Abstract: The sleeve bracket includes three attached sleeves, each sleeve having open ends for receiving and connecting similar frame members. Each sleeve is oriented in a direction which is perpendicular to the other two. The sleeves of the sleeve bracket intersect at right angles and define continuous unobstructed conduits to allow a frame member to be affixed within a sleeve at any point along the length of the frame member. Depending upon the positioning of frame members within the three sleeves, and the orientation and number of sleeve brackets employed, a number of sturdy, easily assembled, simply designed structures can be erected.

Abstract: Alarm circuit wiring is completely enclosed within a jalousie-type window and includes positive and negative terminals connected respectively to the louver blades and to the shafts which rotate the blades between open and closed positions. An insulating air space is provided between each blade and its center shaft to prevent normally any flow of current therebetween. Any attempt to force the louver blades of the jalousie open will result in the completion of the electrical circuit by causing the blade to deform through the air space so that contact with the center shaft is made. The switch contacts of the circuit consist of a rectangular tube provided along one edge of each louver blade, and a rectangular center shaft housed within the tube, the rotation of which by a conventional turning mechanism causes the blades to open and close.

Abstract: A turnover mechanism for turning a planar strip through one hundred and eighty degrees is disclosed. The turnover mechanism is particularly useful in the manufacture of tackless strips and is adopted for installation in a tackless strip manufacturing machine. The turnover mechanism includes a ratchet which is activated by the usual pin driving mechanism to rotate a turner in timed sequence with the pin inserting operations. The turner includes a groove and the turnover mechanism incorporates a cam to urge one end of each strip into the groove after the pins are properly seated in the strip. The turner turns over or flips each pinned strip in sequence to permit the tackless strip manufacturing machine to automatically apply a plurality of floor attaching nails in each strip in a direction opposite to the orientation of the pins.

Abstract: A double secondary seal for a floating roof type of liquid storage tank is disclosed. The secondary seal includes generally a weather shield of edge overlapping steel panels which extends upwardly and outwardly from the peripheral edge of the floating roof. The panels terminate upwardly in flexible wipers which are normally biased into sealing contact with the tank sidewall. A flexible vapor barrier underlies the steel panels to prevent the escape of vapors therethrough and defines a peripheral log space below the panels. A resilient foam log is positioned within the log space to provide a reserve seal. The dimensions of the foam log are designed to maintain the foam log away from contact with the tank sidewall when the wipers are in contact with the sidewall and assure sealing engagement of the foam log and the sidewall whenever the tank is filled sufficiently to raise the wipers above the top of the sidewalls.

Abstract: A quick release door lock is disclosed which includes a unitary body of thin, flat, hardened steel. The body terminates at one end in an integral tongue and at the other in an integral bent flange. A unitary, generally U-shaped slide is movable along the body between door engaging and door releasing positions in response to the movements of an operating rod. The operating rod is reciprocal and rotatable through the flange and is provided with an unthreaded adjusting section and a threaded securing section. The threaded section is designed with a double lead special thread to provide increased linear movement of the slide in response to rotation of the operating rod. The tongue is a removable fit within the door jamb recess and the slide is movable into engagement with the door to secure the door at the jamb between the body tongue and a pressure face of the slide.

Abstract: A ball type yarn tensioning device is disclosed which includes in side by side juxtaposition a ball chamber and a threading chamber. An elongated, vertical aperture is provided between the two chambers to permit the passing therethrough of a yarn threading instrument for threading purposes. After the yarn tensioning device is threaded, the yarn will follow an inclined path from the bottom of the ball chamber, through the aperture and out of the top of the threading chamber. The ball chamber terminates downwardly in a bottom insert which provides a seat for a ball within the ball chamber for yarn tensioning. The threading chamber terminates upwardly in a top insert to resist abrasion by a running yarn. Preferably, the threading chamber is downwardly open to permit lint and other debris to continuously drop from the device in an unobstructed manner.

Abstract: The coin slide includes a fixed body with an integral flange and an integral handle and slide plate which is reciprocal on the body and through the flange. The handle is provided with a plurality of elongated openings within which are fitted interchangeable functional or nonfunctional cores. The functional cores are sized to receive coins of predetermined denomination and can be made to accommodate any size coin, even foreign coins. An interchangeable bridge includes downwardly exposed ramps or cams to accept or check coins of predetermined denomination. The interchangeable cores and interchangeable bridge are utilized to quickly and easily adjust to any desired price which can be computed when using from one to five coins.

Abstract: The window lock includes in combination a cylindrical barrel suitable for recessed installation and a special key for insertion and removal of the barrel from a window sash. The cylindrical barrel is fabricated of suitable length to seat within a bore drilled entirely through the lower sash and a portion of the upper sash of a double hung type window. The bore is drilled of sufficient depth to recess entirely the barrel so that there are no interiorly projecting or otherwise exposed parts. The barrel is interiorly formed with a recessed socket and the special key is provided to engage the socket for barrel removal purposes when it is desired to open the window.

Abstract: A shield is disclosed which protects the bottom of liquid filled tanks in general and underground flammable liquid storage tanks in particular. The shield is slidably secured near the bottom of the fill drop tube which is positioned within the tank. The shield bottomly covers the drop tube in a manner to protect the tank construction during stick gauging. When a gauge stick is dropped into the tank through the fill opening to measure the quantity of liquid contained therewithin, the gauge stick strikes the shield and not the bottom of the tank.

Abstract: A ladder or boom extension system includes a base section, at least one movable section in telescoping arrangement with the base section, and a piston rod fixedly connected longitudinally of the base section. A double acting hydraulic cylinder is movable relative to the piston rod in response to the application of hydraulic forces on either side of a fixed piston. A crosshead including cable carrying pulleys is affixed at each end of the hydraulic cylinder whereby the cylinder and the crossheads travel as a unit for extension and retraction while tensioning in response to hydraulic forces. Extension and retraction cables interconnect between the base section and the movable section and are trained about the crosshead pulleys to pull the movable section toward or away from the base section.

Abstract: The elasticized overlay is particularly adaptable for use in an athletic type shoe which includes a tongue and a modified blucher construction. The modified blucher is fabricated without eyelets and receives thereover the elasticized overlay. An elasticized fabric together with suitable attaching strips is affixed to the shoe along one edge to form the elasticized blucher overlay. The elasticized fabric extends substantially the entire length of the blucher construction and has the free edge provided with a plurality of spaced eyelets to accommodate an eyelet lacing system. The blucher and tongue can be padded with a foam lining to shield the wearer's foot from pressures developed in the elasticized fabric and imposed at the laces.

Abstract: A reusable childproof container closure is disclosed for closing the nozzle of a plastic container wherein the container terminates upwardly in a nozzle including a peripheral groove. A plastic closure includes an inserting member having a cooperating, peripheral lip formed therein for removable engagement in the peripheral groove. The closure also includes a peripheral skirt formed with depending sidewalls which overfit the nozzle and which provide a surface to be engaged by a tool such as a screwdriver for closure removal purposes.

Abstract: An internal combustion engine having banks of oppositely disposed cylinders is disclosed having a rotary valve for each bank which directs the flow to supply the inlet air and to dispose to the exhaust gases. Each of the rotary valves can be liquid cooled and is synchronized to time the inlet and exhaust gas to and from the proper cylinders. A fuel injection system provides the fuel to stratify its change. The fuel supply to any cylinder can be controlled or terminated during the low power requirement of the engine, such as when the engine is operating at reduced power or when the engine is idling. The engine can be built in any number of cylinders, but the four and eight cylinder combination makes for the most compact design.