A method of forming the bell end of a bell and spigot joint connecting two pipes together is disclosed herein and utilizes a mandrel assembly including an elongated core and a retractable ramp arrangement. A sealing gasket is positioned around the core and to one side of the ramp arrangement. Thereafter, an end section of a heat deformable pipe, heated to its deformable state, is moved concentrically over the core, retractable ramp arrangement and sealing gasket to form an enlarged sleeve or bell having an inner circumferential groove within which the sealing gasket is located. During this movement, as the heated end section approaches the sealing gasket, the ramp arrangement causes the end section to deform outwardly and over the gasket, whereupon the ramp arrangement retracts inwardly for allowing the outwardly deformed end section to shrink back to the core and around the gasket.

Method of forming the bell end of a bell and spigot joint

A method is shown for installing a pipe gasket (13) within the bell end (17) of a pipe section (19). The bell end (17) is oriented along a horizontal work axis (61). The annular gasket (13) is inserted within the mouth opening (21) of the bell end (17) of the pipe (19). The gasket (13) is oriented at an oblique angle with respect to the horizontal axis (61), whereby a leading edge of the annular gasket (13) moves past the annular groove (15) provided in the bell end (17) and a trailing edge of the gasket (13) engages the annular groove (15). A retracting force is exerted on the gasket (13) by pulling the leading edge backwards in the direction of the mouth opening (21) of the bell end (17) of the pipe (19) until the gasket (13) snaps into a lock-in position within the annular groove (15). The gasket body has an embedded relatively rigid ring which is precisely located to ensure that the gasket (13), once in snap-fit position, is securely retained within the gasket groove (15) and cannot be displaced.

Pipe gasket and method of installation

A device for fitting an elastic ring such as a piston seal, O-ring or the like into an inner circumferential groove of an article such as a hydraulic cylinder or the like. The device comprises a support supporting the article, a tubular retaining member having an inner circumferential groove, means supplying the elastic ring transversely into the groove of the retaining member through a cut-out portion formed in the retaining member, a chucking member adapted to be inserted into the retaining member and into the article for receiving the elastic ring from the retaining member and delivering the elastic ring into the article, means for deforming elastically at least a portion of the elastic ring radially inwardly in delivering the elastic ring from the retaining member to the chucking member, and a clamping mechanism provided on the chucking member for clamping the elastically deformed ring in translating the chucking member from the retaining member to the article.

Elastic ring fitting device

The present invention relates to a wire harness retainer stud adhesively bonded to an automobile body panel. This stud is used to mount a wire harness to automobile body panels. The stud contains a contact adhesive and an uncured adhesive. The contact adhesive is used to mount the stud to the body panel until the stud and panel are heated to cure the uncured adhesive, thereby bonding the stud to the panel. A method of, and apparatus for, automated assembly of the stud is also disclosed.

Apparatus for automated assembly of a harness retainer stud

There is provided a tubular connector or the like comprising a socket like means and an annular elastic sealing member to be fitted into the socket in pressing contact with the inner peripheral surface thereof. To assist in the assembly of the sealing member internally of said socket the socket and sealing member is each provided with a plurality of marks spaced apart circumferentially thereof in corresponding relation to the other. The sealing member is fitted into the socket by inserting the sealing member into the socket with the marks on the sealing member set to the corresponding marks on the socket and pressing any slack portions or depressed portions of the member against the socket radially inwardly peripheral surface, whereby the sealing member is secured in uniform pressing contact with the said socket inner surface over the entire outer periphery of the sealing member. Alternatively the sealing member can be temporarily pressed against the socket by fastening them together by clamps at the positions where the marks are matched as above, followed by further clamping the resulting assembly at an unfastened portion by means of another clamping device possessing clamping rollers, the said device is moved arcuately with respect of said assembly.

Method of fitting sealing member into frictionally engaging tubular connector

Method and arrangement for mounting elastically flexible sealing rings in internal grooves

Vorrichtung zum Einfuehren eines elastisch biegsamen Ringes in eine in der Innenwandeiner OEffnung angebrachte Ringnut

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Method and arrangement for mounting elastically flexible sealing rings in internal grooves

Vorrichtung zum Einfuehren eines elastisch biegsamen Ringes in eine in der Innenwandeiner OEffnung angebrachte Ringnut