Abstract: A method and apparatus for forming a drum seam. A tray-like end plate having a cylindrical portion forming an indented shape and an outward extending end plate flange formed by the edge of the cylindrical portion is fitted into the end of a cylindrical drum body having a body flange extending outward from the edge thereof perpendicular to the cylindrical axis of the body with the end plate flange overlapping and extending along and beyond the body flange. A seaming chuck having a cylindrical forming face is fitted into the tray-like end plate for holding the body and end plate together with the forming face of the seaming chuck against the inner surface of said cylindrical portion and rotated for rotating the drum body and end plate. The seaming chuck has a fillet on the end adjacent the position where the end plate flange extends from the cylindrical portion and an inclined surface extending from the forming face outwardly thereof.

Abstract: Disclosed herein is method for assembling a pair of slide fastener stringers each having spaced sections in continuous rows of scoops and an apparatus for the same. The leading edge of the scoop row in the leading stringer is detected by a probe inserted into the guide groove of the binder member for the scoop row. The engagement of the leading edge and the claw of the probe retards the progress of the leading stringer thereby retarding the rotation of the feed roller for the leading stringer while increasing the speed of the rotation of the other feed roller for the trailing stringer, which is connected to the first feed roller through a differential transmission mechanism. After both of the stringers are brought into right alignment for exact engagement in the binder member, the claws disengage from the leading edges of the scoop row in the stringers and come out of the spaced sections. In this condition, the spaced sections in the stringers are detected individually by detecting lever means.

Abstract: A unit (10) is employed such that sections of piling are separated and removed from the surrounding leg jackets to facilitate relocation of an offshore drilling platform. Unit (10) comprises a clamping section (20) by which the unit is secured in place and then utilized to lift a separated section of piling after operation of a cutting section (22). The cutting section (22) includes a rotatable plate (56), at least one cutting disk (68) mounted for movement on the plate, a cylinder (76) for actuating each cutting disk inwardly and outwardly, and a motor (62) for driving the plate.

Abstract: A method of loading a column of hollow rivets on to a mandrel for use in blind-riveting. The rivets are provided assembled head-to-tail on a strand made of resilient plastics material. The strand may be tubular or have at least a hollow end portion and be connected to the mandrel by being pushed on to a reduced end portion of the mandrel so that the strand grips the mandrel and the rivets are slid off the strand and on to the mandrel.

Abstract: A method and apparatus for expanding tubes radially, particularly useful for anchoring tubes within a tube sheet in preparation for a subsequent hydraulic swaging operation. The apparatus includes at least one primary expander and at least one seondary expander. The secondary expander is axially positioned within the tube and has a larger cross-sectional area than the primary expander when considered with reference to a plane passing transversely through the tube. The expanders are compressed axially, thereby producing outwardly directed pressure against the interior surface of the tube. The primary expander produces the greatest pressure against the tube due to its smaller cross-sectional area. Axial compressive forces can be applied to the expanders by a draw bar that passes through them.

Abstract: A cylindrical bushing is positioned over the shank of a screw member prior to forming threads on the shank. After the threads are formed, the outside diameter of the threads is greater than the inside diameter of the bushing so that the bushing is held captive on the shank of the screw. A cylindrical sleeve is then inwardly deformed so as to be permanently secured to the bushing. The opposite end of the sleeve facing away from the head of the screw shank extends beyond the bushing and forms a skirt which can be peened over the peripheral inner edge of a panel opening to secure the sleeve to the panel, thereby holding the screw captive to the panel. The end of the bushing next to the underside of the screw head has an increased internal diameter portion for accommodating a spring serving to bias the head and shank away from the bushing so that when the screw is unfastened, it will pop outwardly and release quickly any member to be secured to the panel.

Abstract: An apparatus for an assembly line for assembling articles comprising a moving table, an operating unit disposed near the table having a member movable in two directions, at least one Bowden cable having a wire therein, one end of the wire being connected to the member, and a pulling mechanism to which the other end of the wire is connected. The return of the wire can be accomplished by a return spring on the member or by a second cable wire pulled by the pulling mechanism. Multiple units can be powered and controlled around the same table by one pulling mechanism.

Abstract: An improved method of making a collector ring enhances the cyclic engagement and disengagement of a spring clutch of the type having an annular spring compressed between a clutch cover and plurality of externally located release levers. The preferred method is applicable to a collector ring which defines a radially extending annular base member having an integral axially extending rim on its outer perimeter. The rim abuts and encircles the outer circumference of the annular spring, while the base member is positioned interjacent the spring and levers for transfering reaction loads therebetween.

Abstract: This invention selectively opens and closes the paired clamping members of a flexible skirt hanger by imparting predetermined forces to predetermined parts of said hanger in a predetermined manner. The hanger is held at a work station in a frame during a predetermined work operation which causes said forces to be applied. A pneumatically extended rod causes one of said paired clamping members to move in a predetermined rotational direction while a portion of said frame limits rotations of the other of said clamping members in said predetermined rotational direction, thereby effectively imparting a force to said other clamping member causing it to move in a direction opposite said predetermined rotational direction. The opposite rotational motion of each of said clamping members causes them to open to receive a garment therebetween. Means are provided to close said clamping members on said garment by removing said forces and enabling said clamping members to tend to resume their equilibrium position.

Abstract: There is disclosed an apparatus for applying top end stops to a fastener stringer chain substantially in a continuous cycle of operation, wherein a first means is provided to effect the fusing and shaping of a strip of plastic film for application to the chain and a second means is provided to effect the cutting of the chain to which the film strip has been applied in the form of a top end stop. Said first and second means are arranged so that both shaping and cutting take place at the same working station without having to transfer the chain for the two different operations.

Abstract: A process for manufacturing blades of shutter screens wherein the blades are first formed by punching a metal plated thin plastic sheet material by a first press operation carried out thereon with end parts left connected with other portions of the plastic material. After being coated with a coating material and dried under this condition, the connecting end parts of the blades are cut off the material by a second press operation.

Abstract: A sectional gasket 11 includes corner junction members 12, straight junction members 13, and extension members 14. The junction members 12 and 13 each include a recess 19, and the recesses 19 each include axially extending laterally inwardly facing sealing surfaces 20 and 21. The extension members 14 each have a uniform lateral cross-sectional configuration along their entire axial extent. Each extension member 14 includes axially extending, parallel, laterally outwardly facing sealing surfaces 25 and 26. The sealing surfaces 25 and 26 extend continuously and without interruption along the entire axial extent of the extension member 14. The extension members 14 are characterized by the absence of any special tongue and recess at their opposite ends, and the extension members 14 are manufactured and stored in long continuous strips which are cut to the desired length and used in combination with the junction members 12 and 13 by the end user of the gasket 11.

Abstract: An improved ophthalmic needle and method for manufacturing the same for use with an ophthalmic instrument for extracapsular removal of a cataract. The needle comprises a coaxial tube portion, a separated tube portion, and a tank portion, interposed therebetween for flow conversion purposes. A metal-to-metal seal is effectuated between tubes at the coaxial portion by a spinning method employing a forming die in conjunction with a lathe. A unique use of fixtures is employed to properly orient the various tubes with respect to the tank and to effectuate joint sealing.

Abstract: A method of mounting a timing gear on a crankshaft by shrinkage fit. At room temperature, a bore of the timing gear has smaller diameter than that of a mounting portion of the crankshaft. A guide jig having a mounting key portion and a guide key portion is secured to the mounting portion with the mounting key portion being in register with a key way formed therein, which is angularly indexed with respect to a pin portion of the crankshaft. After being heated, the timing gear is mounted on the mounting portion in a predetermined place by sliding it over the mounting portion while engaging a key way of the timing gear with the guide key portion of the guide jig. Then the guide jig is detached from the mounting portion and the timing gear is cooled to effect shrinkage fit thereof on the mounting portion of the crankshaft.

Abstract: An opening is formed in a tank bottom and a mounting flange for a bottom outlet valve is attached to the tank bottom extending into this opening. This valve mounting flange contains fastener openings. A vertically extending light source is removably attached to the mounting flange, for example with mechanical fasteners. This light source is shined upwardly into the tank and indicates a reference point on the internal surface of the tank top for locating a nozzle opening. This reference point is marked, and a top opening is then formed in the tank shell by workmen located in the tank, usually after rotating the tank 180.degree.. If the tank has been rotated prior to forming the top opening, the tank is again rotated 180.degree. to locate the top opening at the top of the tank. An optional reinforcing plate is then welded to the outside surface of the tank surrounding the top opening. This reinforcing plate contains a reinforcing plate opening.

Abstract: A method of attaching top and bottom stops to a slide fastener chain at one and the same stage of manufacture. The fastener chain is moved along a path until a trailing end of a preceding pair of coupling element groups arrives at a first fixed die, by which time leading end portions of a succeeding pair of coupling element groups are disengaged from each other. With the trailing end of the preceding pair of coupling element groups retained at the first die, an adjacent pair of opposed blank tape portions is sagged until the endmost disengaged coupling elements arrive at a second fixed die spaced a predetermined distance from the first die along the path. Finally, a bottom stop and a pair of top stops are attached concurrently and respectively to the trailing end of the preceding pair of coupling element groups at the first die and to the disengaged endmost portions of the succeeding pair of coupling element groups at the second die. An apparatus for carrying out this method is also disclosed.