Abstract: In a punch press for making metal can tops with closures, respectively, especially those closures of easy-open construction involving an integral but fractured section, cooperative dies are caused in each cycle to perform at a single station first a forming operation, then a peripheral coining step, preferably during the last phase of the forming, and lastly a primary and a secondary swaging or "fracture sealing" operation, the latter occurring as the dies separate. The invention, though not so limited, is applicable to production of can tops of the type disclosed in U.S. Letters Pat. No. 3,881,630, for example, and has particular merit in enabling can top production to occur largely at a single station. It thus conserves manufacturing space as well as lowers cost.

Abstract: This invention relates to a device for selectively actuating the workpiece clamp of an automatically controlled bar tacker sewing machine utilizing electrically operated pneumatic cylinders operatively connected to the upper clamping element to cause release of the workpiece. The clamp feet are releasably independent of other sewing operations. The upper clamping plate and the feed plate are secured to the clamp assembly by quick change fittings.

Abstract: External bending of an inner shaft improves the performance of hydrostatic bearings in a controlled deflection roll arrangement. A deflection sensing member within the deflection roll sends signals through a control circuit to a biasing arrangement near the ends of the shaft that applies a force into the inner shaft, causing it to bend and counter any deflection in the roll.

Abstract: A rotational moulding machine comprises six mould carriers mounted at 60.degree. intervals about a horizontal main axis of the machine on a turret which can be indexed about the main axis so as to bring each of the carriers in turn to loading/unloading, heating, and cooling stations of the machine. The machine comprises first and second driving wheels mounted for rotation about the main axis, and each mould carrier comprises first and second driven wheels rotatable to rotate a mould mounted on the carrier about first and second rotational axes. Each mould carrier is pivotally mounted on the turret, and the machine comprises clutch means whereby each carrier can be moved pivotally between a first position in which the two driven wheels of the carrier frictionally engage the two driving wheels for rotation thereby, and a second position in which the two driven wheels are out of engagement with the two driving wheels.

Abstract: The invention relates to nailing apparatus for use in making cable reel flanges or the like. Apparatus according to the invention comprises a rotatable element housed in a work support table of the apparatus and movable to cause a work-engaging surface of the element to raise a workpiece from a support surface of the work support table into a position in which the work-engaging surface supports the workpiece and provides a turning center so that the workpiece can be easily turned relative to nailing means of the apparatus.

Abstract: An automatic device for feeding and welding T-profile button studs to a surface is provided with a collet for retaining and aligning an individual stud in place adjacent a workpiece. The collet is formed of relatively thin sheet metal and is effective to properly orient the fastener relative to the workpiece surface while minimizing the occurence or arcing in the area between the collet and the arc shield.

Abstract: In a dispenser or applicator of heat softenable material, a melt body has a generally conical melting chamber extending between an inlet and a relatively smaller outlet passage, at least one by-pass interconnected to the melting chamber by a plurality of spaced, radial bores arranged to conduct hot melt from successive outer "layers" of the material as it is being progressively softened, reduced and liquefied in the chamber for flowing to the outlet, and at least one axial auxiliary channel extending between the outlet and the smaller end of the melting chamber for conducting the central core of the last-to-be melted end portion of the material. Preferably the body has a pair of by-passes, a pair of auxiliary channels, encloses a heater, and is of configuration facilitating its economical construction in one piece.

Abstract: A one-piece clip is provided for attaching a trim strip molding and an underlying elongated flat strip of flexible material having a beaded edge onto a panel having a button headed stud protruding therefrom. The clip and beaded strip are attached to the stud and the trim strip attached to the clip. The clip comprises means for orienting the flexible strip relative to the stud, and the trim strip relative to the stud whereby the assembled trim strip and flexible strip are retained onto the panel in desired alignment.

Abstract: At least one pressure applying member is disposed within a slot extending lengthwise along a stationary shaft about which is journaled an outer roll shell. Slidable spacer blocks also disposed in said slot locate each pressure applying member along the slot and permit each member to slide radially in the slot so as to accurately conform to the internal surface of the roll shell and permit an accurately controllable response by the pressure applying members to any deflection of the shaft.

Abstract: A combined heel seat lasting and side lasting machine comprising heel seat wipers and helically ribbed rotatable side lasting rolls, for automatically lasting the side and heel portions of shoe assemblies. Shoe assembly support means comprising a movable jack mounted in a carriage presents a previously toe lasted shoe assembly to the side lasting rolls and the heel seat lasting wipers in sequence.

Abstract: The present method of creating a tear line in metal, of particular advantage when such a weakening line is to be uniformly reproduced in tougher sheet metal, involves combining the initial steps of (a) bending the largely unrestrained sheet material to form the closure periphery with tension inherent therein, and (b) concurrently coining longitudinally that portion of the periphery which is in tension thus to induce exactly to the required degree the fracture at the desired weakening line. Final steps of swaging and coating with sealant may then follow as hitherto taught to provide lids with easy-open closures capable of retaining fluid pressure.

Abstract: An extrusion apparatus for use with thermoplastic materials has a withdrawable rotor which is mounted on a piston motivated carriage, the carriage having anti-vibration mounting members to reduce loads on the rotor. A gaseous vent chamber is operable in conjunction with a reversible extruder screw and a waste mix ejection arrangement, to prevent undesirable contamination or incompletely mixed material from the extruded product.

Abstract: Thermoplastic esteramide heterophase copolymer resin including saturated copolyester soft segments chemically joined to copolyamide hard segments, in proportions and copolymerized to an extent to give a melt viscosity, extended tack after melt application and room temperature hardness for use as a hot melt adhesive in the manufacture of shoes.

Abstract: Electrical components having generally parallel leads extending in one direction from one side of their bodies, respectively, are successively transferred to a conveyor means movable through sequential processing stations to prepare the leads for circuit board connection or sequencing preparatory to such connection. Spaced lead grippers on the conveyor means control lead portions adjacent to the bodies of the components. The stations sucessively act to determine the standoff length of the leads from the bodies of the components, reform remaining portions of the leads in coaxial relation while maintaining the standoff length, check for omission of a reformed component from proper position in the series and, upon release from the grippers, tape the coaxial portions of the leads of adjacent components in parallel, side-by-side relation. Preferably, the means for checking reformed component presence also controls turning of a reel for storing the repackaged components.

Abstract: A sheet metal can end or cover comprises a largely or wholly removable panel bounded by a peripheral tear line, and an integral closure within the panel, the closure being defined by a generally arcuate groove or depression formed at one side thereof with a coterminous, rupturable weakening line having a mid-locality extending nearer to but spaced from the panel tear line to provide a lifting lip therefor and a deflectable tongue portion extending toward the center of the panel. The weakening line and the tear line are preferably of the fractured but integral type fully disclosed in our U.S. Pat. No. 3,881,630 and extend on opposite sides of the panel. On depressing the locality of the mentioned weakening line with a tool, such as the tip of a spoon, the closure opens then permitting the tip to bear upwardly on the inside of the lifting lip as the bowl of the spoon is pivoted upon the tongue portion.

Abstract: An air blast dust removal machine has a jet of air projected from at least one slot-like nozzle inclined at an obtuse angle towards an oncoming sheet material which is held to a moving permeable conveyor belt. The sheet material is held to the conveyor belt by at least one suction device desposed on the opposite side of the conveyor belt as the sheet material passes adjacent the jet of air. A second conveyor belt holds the sheet material from its top side by a suction device; and an obtusely projected jet of air blasts dust from the bottom side of the sheet material.

Abstract: A shoe sensing mechanism for setting a machine according to the size of a shoe and whether the shoe to be worked on is left or right.

Abstract: The invention relates to a chain of modules constructed to sequentially dry plastic particles each module comprises a mixing chamber having a trough formed therein, the trough having side walls inclined to the horizontal and a slot extending along the bottom thereof. The slot is covered by a grating to permit passage of air into the mixing chamber but to prevent particulate material from falling out of the trough through the slot. A pressure chamber is constructed immediately below the trough in the body portion of the module and means, are provided for delivering air to the pressure chamber thereby causing a stream of air to be forced upward into the mixing chamber through the slot in the trough. Each module is tilted to provide a flow of plastic particles through the trough.

Abstract: A pad box for cement attaching soles to differently shaped shoe bottoms comprises a forepart pad tiltably and vertically adjustable, a datum pad for supporting a shoe adjacent to its heel breast line, independent movable waist pads adjustable heightwise of the datum pad, a heel presser member mounted for movement heightwise and lengthwise of the shoe, and fluid pressure means for respectively operating the heel presser member and each of the waist pads. The arrangement and construction are such that the waist pads are fluid pressure actuated automatically to support the shoe bottom during pressing in accommodation of its lengthwise and widthwise configuration. Method aspects of the invention are also disclosed.

Abstract: A machine for lasting a shoe wherein specially contoured resilient side wipers coact with extensible heel seat wipers to last the sides and heel end simultaneously. Each side wiper is complementarily shaped to the respective contours of the shoe bottom and featherline. An arrangement of pincers pull the upper margin over a precemented insole, then the contoured side wipers floatingly locate and inwardly force the upper margin to the insole, and the extensible heel wipers last the upper margin of the heel, providing a continuity of wiping from the heel to the breastline of the shoe.