Abstract: A method of scoring an enameled metal sheet to form a line of weakness in the sheet while minimizing disruption of the enameled coating. The enameled surface is placed in contact with an anvil having a flat surface portion. The flat surface portion extends a relatively short distance in a transverse direction on either side of the desired line of score with angled surface portions of the anvil extending downwardly from the flat surface portion to create void spaces between the angled surface portions and the metal sheet. A scoring tool is then brought into forcible contact with the metal sheet along the desired line of score. The scoring tool includes a scoring edge which contacts the metal sheet with the scoring tool having inclined side surfaces which are angled outwardly away from the scoring edge. The inclined side surfaces displace metal within the metal sheet is a downward direction away from the line of score.

Abstract: A method and lifting tackle for raising a load into contact with the underside of an I section girder or beam to allow the brackets of each pair to rest together on assembly on small girders.

Abstract: A container for a pressurized gas cylinder provided with an integral non-protruding boss for a valve and method of making same. The container is made from substantially similar half shell portions each of which has a substantially straight cylindrical body wall portion and a dome-shaped end portion. Preferably the upper shell portion is flanged and inverted with respect to the bottom shell whereby the shells may be welded along a substantially horizontally extending weld line. Prior to be welded to the bottom shell, the upper shell is formed with an outwardly extending bulge which is reversely bent in order to form an integral, non-protruding boss. After being reversely bent, the bulge is reshaped to deepen the budge thereby diminishing its size. It is then pierced and internally threaded to receive a valve member.

Abstract: This invention relates to a method of determining the sequence of die sizes to be used in a multi-die/block drawing machine to draw metal from any given input stock size to any given final wire size to give optimum efficiency and proposes nomograms for achieving the sequence quickly and easily.

Abstract: In the manufacture of a gated can lid preparatory to attaching the lid to the body of a can, a pushdown gate is first formed in a metal blank prior to cutting the outline of the lid. The gate is cut in a panel which is integral with the lid, below an aperture in the lid, and beneath an underfolded, interconnecting spacer strip about this aperture. After the lid outline is cut from the blank, the circumferential chuck panel, seaming panel and curl are formed to complete the gated lid.

Abstract: An apparatus for shaping end turn portions of dynamoelectric machine coil bars. An end portion of an electrical coil bar is bent at a selected angle to a straight portion of the electrical coil bar. The bent, end portion of the coil bar is caused to lie along a frustoconical surface having an axis of rotation extending substantially parallel to the straight portion of the coil bar. A rotatable member whose axis of rotation is mounted perpendicularly to the frustoconical surface at a selected distance from the straight coil bar portion has an opening therethrough for guiding the coil bar's end portion in a spiral configuration on the frustoconical surface when that surface is rotated about its axis through a predetermined angular displacement.

Abstract: This disclosure pertains to a broken wire switch for use in conjunction with a wire drawing machine. It includes a light source and a light detector, both mounted on the common side of the path of travel of the wire. The light source and detector are arranged so that the radiation pattern of the light source and the field of view of the light detector intersect at a point in the normal path of travel of the wire. An electric switch associated with the light detector interrupts the operation of a windup block that advances the wire.

Abstract: A semi-automatic sheet metal forming machine for forming light gauge metal having a bed formed of a plurality of adjustable and interchangeable spaced spacer plates of various widths, a forming bar having a plurality of removable and interchangeable forming fingers of various widths, and a clamping bar including a plurality of removable slidably mounted clamping fingers of various widths, the clamping bar and forming bar being hydraulically operated and synchronized for semi-automatic repeated forming operations. By adjusting and utilizing different width combinations of the clamping and forming fingers and spacer plates, an operator can perform almost any desired sheet metal forming operation which heretofore would have required separate and expensive special dies.

Abstract: In a carriage drawing machine for uniformly drawing elongated material to drawn, having two drawing carriages reciprocatingly displaceable in mutually opposite directions, a drawing jaw vise on each carriage for alternately gripping the material to be drawn, each of the vises having two drawing jaws held in a housing by a wedge structure with bearing rollers interposed which serves to self-lock during the drawing, both of said drawing jaw vises being disposed to receive and simultaneously draw two bars of the material to be drawn, at least one of the two drawing jaws being engageable in common with both of the bars, and including an equalizing support in association with the other of the two drawing jaws.

Abstract: The invention comprises an improved method of forming an animal-figure decoration, such as a swan or the like, from fabric. A support frame, in the form of a wire rod, receives enveloping annuli of ruches of fabric, in predetermined positionings. The ruche annuli are formed of fabric of common-length strips and both discrete and common widths. The widths of the strips -- from which the annuli are formed -- determine the positionings thereof on the wire rod, and result in the definition of an animal figure of optimum shape.

Abstract: A stepped cone draw block disclosed has intermediate sheaves which each include a pair of plate-like annular sheave members with peripheral flanges between which a ceramic ring for drawing a wire is clamped. Side surfaces of the sheave members of each intermediate sheave face away from each other along an axis of a shaft on which the draw block is mounted and axially facing surfaces of these sheave members are bolted in engagement with each other midway between the side surfaces. One sheave member of each intermediate sheave has a central opening sized to receive and mount the sheave on the shaft with a shaft key received within a keyway of the opening to provide coupling to the shaft, while the other sheave member has an opening slightly larger than the shaft and a groove aligned with but slightly larger than the keyway so as to facilitate mounting of the sheave.

Abstract: A method is disclosed for forming an end shell to allow a reduction of the gauge of the end shell without loss of pressure holding capabilities or, alternatively, to increase the pressure resistance of the container to which the end shell is secured. This method comprises the steps of providing a sheet metal end shell having a substantially planar central wall portion, a first curved portion around the periphery of the central wall portion connecting the central wall portion with an integral frustoconical wall portion, a peripheral flange projecting radially outwardly from and integral with the frustoconical wall portion, and exterior and interior surfaces respecting its intended use on a container; supporting the central wall portion with a first supporting means disposed against the interior surface thereof opposite said frustoconical wall portion substantially concentrically of the end shell to within less than approximately 97.

Abstract: A method of forming an article from sheet metal in a press, in which method a water reducible coating is applied to the work piece in the press to serve not only as a lubricant and coolant during pressing but also as a hardenable coating on the work piece after pressing. The use of an ethyl acrylate-styrene-acrylic acid co-polymer in water is described. Further coatings may be applied to the first coating either before or after hardening of the first coating.

Abstract: The method of making convenience opened can end closures or can tops from a metallic web of coil stock which comprises the steps of piercing, marginally notching, and lancing the web according to a predetermined pattern at longitudinally spaced intervals to define a series of identical individual can top blanks which are part of a web layout in which said blanks are connected together by flexible links and are spaced apart on equal centers, and then passing the thus prepared web over the necessary stations of a single progressive die operated by a single press to complete the drawing and embossing of each web blank to form a can top therein while the web material acts as the carrier of the blanks until the can tops are cut out of the web to be transferred individually to edge curling and finishing stations comprised within the said progressive die.

Abstract: A heat exchanger coil is formed by winding a plurality of flexible tubes to form a coil. The turns of the coil are separated in the axial direction of the coil by means of radially disposed separator elements. The turns of the coil are separated in the radial sense by inserting separating means. Said separating means are positively controlled by the radially disposed separating elements relatively to the coil, both in the direction of winding the coil and in the opposite direction. The separating means are locked in the radial direction of the coil by winding the tube over them.

Abstract: The disclosure relates to apparatus for center punching a hot metal billet preparatory to a piercing operation, in the production of seamless tubing. The apparatus provides a simple, reliable, mechanical arrangement effective to automatically compensate for normal variations in the diameter of successive hot metal billets, such that the center punching operation is carried out with greater accuracy than has heretofore been attained in regular production operations. The apparatus includes means for mechanically clamping a hot metal billet preparatory to center punching, and means for axially advancing a center punching tool into the end of the clamped billet. The center punching tool itself is mounted for limited transverse movement in relation to its advancing means, and is mechanically coupled to the clamping means by a compensating mechanism.

Abstract: A high speed end forming apparatus for elongated work pieces, such as coated tube, includes two selectively variably spaced C-shape heads having feed openings therein to receive the two ends of the advancing work piece, the two ends sequentially being clamped and formed in such position, respectively, by relatively movable chuck jaws and forming apparatus carried by such C-shape heads. The work piece is advanced to the C-shape heads by a walking beam transfer conveyor that is simultaneously operative to deliver an unformed work piece to the C-shape heads and to remove a formed work piece from the C-shape heads.

Abstract: Forming a corrugated corner piece or a plurality of interconnected integral corrugated corner pieces for forming corrugated, rectangular, expansion joints or bellows by placing a metal blank between a pair of specially constructed hinge plate members. Each hinge plate member comprises a plurality of adjacent elongated plates with the adjacent edges of the plates secured together by tubular hinge elements. The plates pivot together at spaced locations along their lengths, around zig-zag orientated hinge elements that are positioned to lay normal to the side edges of the plate members and interconnect separate parts of the plate members. The blank is placed between the two hinge plates, with the hinge plates being aligned. Aligned pairs of the hinge elements are then held together with the blank sandwiched therebetween.

Abstract: A method of trouble-shooting wherein an increase in a can's body and neck failures is correlated with prior failure-mode experience and used to indicate corresponding types of can-press malfunctions.

Abstract: The drum of an in-line wire drawing machine is rotated by a mechanical variable speed drive whose speed is automatically adjusted by a speed trim control which senses the difference between the speed of the wire being supplied by the drum and the speed at which wire is being consumed by a using station. The final wrap of wire on the drum is engaged by a roller connected to a one-way clutch, the roller serving to prevent the wire from slipping on the drum and thus serving to increase the traction between the wire and the drum.