Abstract: A spooling apparatus attachable to a printing press and operating under pneumatic control and power. An elongated web passes through a linear slitter, over a unidirectional roller, and onto a take-up spool. The spool rotates on power received through a belt drive and a variable speed gear box from the press itself. Upon the receipt of a signal from the press, a pneumatically controlled and powered knife cuts the web and urges it onto another spool. A spring dampener keeps the knife from bouncing and produces a clean cut. When the knife returns to its original position, the pneumatics applies a brake to the full spool to stop its rotating and allow the operator to remove the spooled web. The pneumatics then lifts a cam follower from a stop in a cam and engages a clutch to rotate the frame which holds the rollers for the spooling. This brings the filling spool to the location previously occupied by the full spool. There it continues to rotate and take up the web.

Abstract: Expandable foam which includes a foamable polyvinylchloride (PVC) base resin combined with a glutarate ester plasticizer and stabilizing agents. The compound is cast on a release liner and heated to expand the compound into a foamed state. The resulting foam when coated with adhesive is particularly useful in adhering to plastic materials.

Abstract: An apparatus for heat sealing thermoplastic articles includes a heater movable reciprocably in a longitudinal direction, and two opposed transversely reciprocable and pivotable carriers, each supporting a thermoplastic workpiece to be bonded. Two opposed heating surfaces of the platen heater are inclined and diverge in the longitudinal direction, to give the heater a "V" configuration. The carriers may be pivoted to a corresponding "V" configuration to position each workpiece against an associated heating surface of the platen. Following heating of the workpieces, pneumatic or other force applying cylinders urge the carriers toward one another as the heater is withdrawn from between them. Cam surfaces on the heater cooperate with cam following rollers on the carriers to control the position of the carriers during withdrawal of the heater, and permit rapid and accurate engagement of the thermoplastic articles after withdrawal.

Abstract: A foam strip which adheres to the surface of glass and other smooth objects to enhance gripping. The foam is formed from a highly plasticized foamable resin cast on the glossy surface of a release liner to enhance adhesive properties.

Abstract: A spacer member for positioning between fragile objects, such as glass panels, during shipment. The spacer includes a tack layer of sufficient adhesive properties to allow the spacer to adhere to the surface of the fragile object without the use of a surface tape.

Abstract: A self adhesive wallboard tape comprising a substrate containing longitudinally spaced holes in the center of said substrate and an adhesive coating on one side of said substrate, the center portion of said substrate being adhesive free.

Abstract: Apparatus for solvent bonding surfaces of thermal plastic members, one to another, which includes a working solvent spray enclosure with work retaining rack means mounted within the enclosure to removably receive workpieces thereon. Mask retaining means are disposed within the enclosure for masking preselected portions of the workpieces, with the masks being arranged to provide face-to-face contact and bonding between the workpieces held within the work retaining racks. A solvent spray apparatus is disposed within the enclosure and includes a spray head with nozzles directed toward the workpieces for generating the spray mist of solvent onto the surfaces of the mask and exposed portions of the workpiece. Carriage means are provided for transporting the solvent spray apparatus along a linear path generally between opposed surfaces of workpieces held within the enclosure, with the carriage means being arranged to direct a substantially uniform spray of solvent onto the workpieces.

Abstract: An adjustable threshold assembly of simple construction and inexpensive to manufacture includes a bar member vertically adjustable in a channelway of a base member. A plurality of threshold height adjusting screws extend vertically downward through openings in a transverse bridge wall of the bar member and between and in self-tapped screw thread-like engagement with a pair of longitudinally extending opposed vertical walls of the bridge wall. The facing vertical sides of the opposed walls are advantageously formed with longitudinally extending extruded serrations of a cross-sectional shape approximately matching the cross-sectional shape of the screw threads of the adjusting screws to facilitate self-tapping of the adjusting screws into the opposed walls of the bar member.

Abstract: A throw-away mousetrap consisting of a blank of semirigid sheet stock which is prescored for simple conversion into a tubular housing. The floor surface of the housing is coated with a highly adhesive composition which serves as a permanent physical securement and entrapment medium when a mouse enters the housing. The trap is preferably sprayed with a scent to serve as an attractant to the mouse. After serving its purpose the mousetrap is easily closed, and then discarded-mouse and all.

Abstract: In the operation of a generator by a source of mechanical power such as a spring motor delivering a variable amount of power to the generator a feedback circuit may be used to monitor the output of the generator. The feedback circuit is employed to provide an input back into the generator which serves to control the speed of rotation of the generator so that such speed is substantially constant. In the preferred embodiment disclosed the generator is an alternator and the frequency of the output of the alternator is monitored in the course of providing input back to the alternator.

Abstract: A machine for facilitating the simultaneous heating, bonding or sealing of a group of thermoplastic articles retained within a rotary sealing system. First and second rotatable workpiece carriers are arranged to transport the workpieces to be bonded, step-by-step, from loading stations to a heating station, and subsequently, to a bonding station, thereby accomplishing a plurality of operations on a simultaneous basis. The same drive mechanism used to incrementally rotate the workpiece carriers also imparts a reciprocating motion to the heating element and an arcuate reciprocating motion to the workpiece carriers for first applying heat energy to the workpieces for a predetermined time interval and for subsequently applying compressive forces to the heated workpieces undergoing bonding and thereafter releasing the now-joined workpieces from the carriers.