Abstract: A device for removing barnacles from a boat lift including an elevator riding on rails extending into a body of water, characterized by a blade and a mounting adapter connecting the blade to the elevator of the boat lift. The blade is positioned to remove barnacles from a submerged portion of a rail as the elevator traverses the rail.

Abstract: A ship or other marine surface vessel to be protected against torpedo or missile attack tows therebehind an articulated train of floating projectile barriers. To defense on attack, the ship circles away from the attacker to a position behind a trailing portion of the floating barrier train. Each floating barrier includes a solid wall, torpedo intercepting keel or hull which is buoyant, horizontally stabilized and supports thereon a missile intercepting fence extending above the surface of the water. Provision is made for drawing projectiles to the floating barriers and for determining the position of the attacker.

Abstract: Electrolytic capacitor cells of paste electrode type are formed integrally in a composite or laminated belt in a predetermined pattern and subsequently severed or otherwise separated therefrom to provide a plurality of individual cells or stacked cell sets of desired shape. The belt includes at least one inner sheet of ion conducting/electron insulating material, outer sheets of electron conducting material, and intermediate sheets of insulating gasket material respectively interposed between the inner sheet and respective outer sheets. Each intermediate sheet has a plurality of holes arranged in a predetermined pattern and aligned with the holes in the other intermediate sheet for accommodating respective electrodes of a like number of pairs which have opposite surfaces in operative contact with the inner and respective outer sheets.

Abstract: Electrolytic capacitor cells of paste electrode type are formed integrally in a composite or laminated belt in a predetermined pattern and subsequently severed or otherwise separated therefrom to provide a plurality of individual cells or stacked cell sets of desired shape. The belt includes at least one inner sheet of ion conducting/electron insulating material, outer sheets of electron conducting material, and intermediate sheets of insulating gasket material respectively interposed between the inner sheet and respective outer sheets. Each intermediate sheet has a plurality of holes arranged in a predetermined pattern and aligned with the holes in the other intermediate sheet for accommodating respective electrodes of a like number of pairs which have opposite surfaces in operative contact with the inner and respective outer sheets.

Abstract: In an electrolytic capacitor, there is provided an improved header for closing the open end of a capacitor can. The header includes a rigid insulating or metal body having at least one terminal passing therethrough, and a resilient elastomeric cover having inner and side walls molded about respective surfaces of the body and a tubular terminal sealing portion molded interiorly about a hole in the body through which the terminal passes. The tubular portion has formed at its inner annular wall a plurality of axially spaced apart annular sealing beads which annularly engage the terminal with compressive force to effect respective axially spaced apart line seals. When assembled under compression between axially spaced components of the can, the inner and side walls of the cover cooperate with such components to provide plural seals against leakage of electrolyte from the can about the rigid body while the tubular portion seals against leakage at the terminal.

Abstract: A solenoid actuated fluid control valve comprises a porting member including a port and a conical valve seat circumscribing the port, and a relatively movable port closing valve element such as a needle valve element including a resilient conical tip. The valve seat and tip are correspondingly tapered and a small annular bead is provided on the resilient tip which provides for initial and preferably total sealing of the valve. Also provided is a suitable stop such as a shoulder on the needle valve element body adjacent the resilient conical tip thereon which engages an opposed surface on the porting member to prevent overcompression of the resilient conical tip and preferably to limit sealing contact to the area of the sealing bead.

Abstract: A control apparatus provides for automatic programmed sequencing of pressure bumps at precisely determined pressures in a molding press and optionally provides for full pressure or low pressure cure at the conclusion of the bumping operation. The control apparatus comprises a press pressure monitor that measures press clamp pressure and produces an output signal indicative of the measured press pressure, and a control circuit that compares the output signal with a program selected one of a number of reference signals respectively indicative of bump pressures at which a bump may be desired and directs the press to perform a bump upon a predetermined relationship between the output signal and reference signal, such being indicative of the attainment of the bump pressure indicated by the then selected reference signal. Upon completion of the bumping operation, either full or low pressure cure may be effected.

Abstract: A mailer and postal system are characterized by a document enclosure including a window through which a return receipt is detachably secured to the document. When delivered, the return receipt is endorsed by the recipient, detached from the document and returned to the sender as proof of receipt of the document as well as the mailer. The postal system also provides for proof of receipt and delivery by the receiving and delivering Post Offices by employing identifying coded perforations in a certified mail receipt affixed to the document and in the return receipt, respectively.

Abstract: An integrally molded laminated driving band for artillery shells is formed of radially alternating, circumferentially extending layers of fabric and rubber. The driving band is made by coating a fabric strip with uncured rubber, wrapping the coated strip to form an annular preform, and molding and curing the preform to form an integrally molded band. Various means are provided for assembling the driving band in an artillery shell.

Abstract: Cable seals of the type employed in sealed electrical connectors are maintained in a predetermined orientation throughout manufacture and handling of same whereby the cable seals may be presented in a usable form to automatic assembly equipment for manufacture in cable lead terminations employed in such connectors. According to the method of the invention, the cable seals are integrally molded in a belt which provides a handleable product with the seals being maintained by the belt in a predetermined orientation. The cable seals then are punched from the belt and simultaneously inserted into a carrier for subsequent handling while still maintaining the cable seals orientated for use such as in automatic assembly equipment.

Abstract: The valve element and method of making same are characterized by a valve body having at the neck thereof a small radially outwardly projecting annular crimp bead and a resilient tip molded on the body at the neck. To mold the tip, the body is axially aligned and urged into the mouth of an open ended mold to close the cavity therein with the crimp bead engaging and being crimped by the mold wall to effect a tight annular seal about the body periphery thereby to preclude leakage of fluid material introduced in the closed cavity to form the tip, but without the development of substantial pressures in the mold that might cause excessive wear and damage to the mold.

Abstract: A sealing element is characterized by an upset metal disc having a central opening and reversely positioned annular grooves, and an annular sealing member in each groove. The sealing element as a sealing washer provides for effective sealing engagement with the head of a fastener and the surface of an article being fastened to seal the fastener opening in such article. The sealing element may also be employed as a valve seat and seal in a check valve assembly in which a biased poppet element is carried by the sealing element and is responsive to fluid pressure for controlled passage of fluid through the check valve assembly.

Abstract: Cable seals of the type employed in sealed electrical connectors are maintained in a predetermined orientation throughout manufacture and handling of same whereby the cable seals may be presented in a usable form to automatic assembly equipment for manufacture in cable lead terminations employed in such connectors. According to the method of the invention, the cable seals are integrally molded in a belt which provides a handleable product with the seals being maintained by the belt in a predetermined condition. The cable seals then are punched from the belt and simultaneously inserted into a carrier for subsequent handling while still maintaining the cable seals oriented for use such as in automatic assembly equipment.

Abstract: The present invention provides an improvement in fluid flow control valves which utilize polymeric rubbery materials either as the valve member or the valve seat in the flow control valve. The improvements are obtained by utilizing as the rubbery material for either the valve seat or the valve, a semi-rigid to rigid rubbery material prepared by curing a nitrile rubber with from three to 15 parts of sulfur per 100 parts of rubber. Such cured rubbers when utilized in said application, have been found to overcome the problems exhibited by the rubbery materials heretofore used for such applications.