Abstract: Method and apparatus for removing warps or surface irregularities from polyvinyl phonograph records by exerting forces vertically and/or laterially on a record. The apparatus includes a plurality of plate-like members which are used to engage with the lead-in lips and/or label regions on one or more records and to apply appropriate forces. The effectiveness of the method and apparatus is enhanced by the application of moderate heat from an external source.

Abstract: A glass break apparatus and method includes a pedestal which forms an airtight seal to a syringe and to the glass over the break. The flange on the pedestal enables the gripping and sealing.

Abstract: An apparatus is disclosed for repairing damage to a glass or plastic surface such as a safety glass windshield. The apparatus includes a substantially flat body member made of a flexible or rigid and transparent material. A disposable resilient intermediate member such as a paper product is provided with a generally central cut out region. The intermediate member is glued between the glass surface and the body member forming a cavity in the cut out region defined by the body member, the intermediate member and the glass surface. Access conduit through the body member enables insertion of a repair material into the cavity. A compressor and a vacuum pump are respectively connected by a first and a second valve to the access conduit for subsequently applying alternate vacuum and pressure to force the repair material into the damage in the glass surface. The intermediate member may then be removed from the glass surface.

Abstract: Especially effective for use with fast hardening metal fillers comprising resin and catalyst the present spreader, which may be integrally molded in a continuous combination of injection and blow molding comprises an elongated handle which is hollow and deformable and a blade which is solid whereby sculpturing and contouring may be achieved more readily through hand manipulation and the spreader is more easily cleaned.

Abstract: In the repair of damaged shatterproof glass by the introduction of a polymerizable liquid into a conical crack a vacuum is intermittently released and reapplied to the damaged area by means of a vacuum chamber connected to a vacuum pump through a line having an opening to the atmosphere which opening is adapted to be rapidly opened and closed by an operator's finger. The opening is threaded to receive a removable needle valve for accurate vacuum control. The vacuum chamber has a transparent end wall for viewing the work and a translucent cylindrical side wall allowing external light to illuminate the work without glare. A flexible seal in the end wall of the vacuum chamber allows a probe to be operated while the vacuum is applied. A plunger-sleeve combination, extending through the end wall is used to apply pressure to the liquid without releasing the vacuum.

Abstract: Devices for covering up the effect of a pockmark in the outer layer of a safety glass windshield or the like include means for evacuating the atmosphere around the pockmark; sealing off the immediate area surrounding the pockmark; applying a highly-penetrating transparent liquid under pressure to the sealed area to force the liquid to penetrate the crevices of the fracture surrounding the pockmark. The transparent liquid fills the microscopic crevices surrounding the pockmark and then is hardened to make the pockmark permanently transparent and effectively invisible as one looks through the safety glass.

Abstract: Base vinyl material is readied for repair by preparing the edges of a hole to get a clean sharp periphery, and by cleaning the base material. A substantially non-heat shrinkable, precured, vinyl-welding compound having high tensile strength and low fusion point is laid in the hole so that it abuts against the periphery of the hole and then is fused to the base material by heat. The upper exposed surface of the repair is smoothed to present a continuous, uninterrupted surface with the base material. A hard and flexible graining tool is obtained from an impression of the base material. The graining tool is applied to the upper surface of the welding compound after it and the surrounding base material have been heated sufficiently to receive a grain impression.

Abstract: Inner and outer patch forming plates of known shapes and contours are provided with a pin of a single size removably extending therebetween and through one plate, a nut on the end of the pin releasably clamps the plates together. The pin is formed integrally on the face of the inner plate and has a conical enlargement widening to the surface of the inner plate. Yieldable spring means are removably positioned between the nut and the outer surface of the outer plate.

Abstract: Apparatus for curing a tire repair wherein an electrical heater pad is placed against the repair area on the inside of the tire, and is supported by a flat air bag which lies against the inside of the tire, and is supported by a sausage-shaped air bag. Another electrical heater pad is placed against the repair area on the outside of the tire, and is held against the tire by another flat air bag which is held against the tire by straps passing around the tire cross-section. A buckle is shown which allows the straps to be pulled up as tight as possible by hand; the bags are then inflated to hold the heater pads firmly against the tire. The repair is then cured by passing currents through the heater pads.