Abstract: This invention relates to a method of forming a step to stile joint in a ladder which does not utilize mechanical fastenings such as rivets and the like.According to this invention, the step is provided with integral hollow sections extending therealong which protrude from each end and which pass through apertures in the stiles and are adapted to be swage connected thereto.

Abstract: A shackle assembly for fastening of compression struts at the steering knuckle in the wheel suspension of a motor vehicle is formed with an inner and an outer strap member, the straps being adapted to be arranged together to define a compression strut span within which a compression strut may be received. Holes are formed in both the inner and outer strap member through which fastening screws are received. The holes are defined through the strap members at a location outside of the compression strut span with the holes extending through the inner strap member being formed with a larger diameter than the holes defined through the outer strap member.

Abstract: The invention relates to a coupling or connecting end part for a flexible element such as a cable, wire or other element, whatever the cross-section thereof. In accordance with the invention, the part is formed from two separate portions forming a whole with the flexible element when assembly is completed. The first portion is a cage receiving the flexible element and includes laterally at least one extending flexible strip normally projecting outside of the cage. A second portion being a slider being adapted to be slid over said cage, in order to urge said strip inwardly, so that a portion of the strip is embedded in the flexible element. The device has means provided to produce effective locking of the slider on the cage. The invention is applied to the fastening of parts on flexible elements such as cables, wires or other elements.

Abstract: An improved corner frame structure and method of manufacturing it is provided. The corner is effected by joinder of channelled members by a solid bracelet having legs extending at the desired angle.Each leg is provided with a pair of spaced apart depressions. Into these depressions, tongues are struck down to bind and urge the adjacent frame members together.

Abstract: A connector plate combination for connecting wooden members comprising a connector plate and an underlying substantially imperforate reinforcement plate, said connector plate having a body portion and a plurality of teeth extending generally transversely outwardly from said body portion, the central portion of said body portion overlying said reinforcement plate, and a plurality of said teeth being forced through said substantially imperforate reinforcement plate.

Abstract: A method and structure for joining a harder to a softer sheet are disclosed. Sharp projections are formed surrounding a hole on the harder sheet, and these projections are penetrated through the softer sheet and then bent back and around so as to engage with the softer sheet. In a preferred embodiment, the projections are formed by boring a conical hole in the harder sheet, cutting radial slots which lead outwards from the hole, and bending the periphery of the hole perpendicular to the sheet. The acute angle formed by the conical surface of the hole and one face of the sheet ensures that the projections are sharp.

Abstract: The present invention relates to an electrical measuring instrument of the D'Arsonval type and more specifically to an improved low cost and small suspension system for the bobbin or armature assembly of such an instrument. Such improved suspension system includes the combination of a small light weight bobbin having thin gauge, surface insulated conductor wound on a light weight bobbin frame. Thin conducting strips are mounted to the frame above and below and these thin plates are provided with pins extending above and below respectively into jeweled pin pockets. Each pin is inserted at its blunt end through a strip in which it later resides by incorporating the pin in a punch, mounting the strip over an opening in a die beneath the punch and aligning the blunt end of the pin with the opening in the die.

Abstract: A method and coupling for severing and rejoining sealed tubing without the loss of the seal especially adapted to the installation of charged refrigerant lines into the refrigerator cabinetry. The method includes the crimping of the tubing wall at the point to be severed, sealing of the crimped tube walls, as by welding, and severing of the tube through the crimp. To rejoin the ends, a rejoinder coupling is utilized having end sections receiving and sealed to the crimped tube ends. The coupling also includes an axially compressible body section within which is disposed a piercing tool having a pair of penetrating ends adapted to pierce each of the crimped tube ends upon pushing the tube ends together, the compressible body section accommodating the axial tube movement toward each other in carrying out the piercing.

Abstract: A tubing connection comprising an elongated opening in a first tube member and a pair of opposed slots cut in the end of a second tube forming a pair of tabs which are flattened and inserted through the elongated opening. The tabs are spread to conform with the inside contour of the first tube member and a tubular insert is press fit between the spread tabs. A perforation is punched through the first tube member at a location such that it penetrates one of the spread tabs and the tubular insert. The perforation is indented locking the tab to the first tube member to prevent rotation giving a strong rigid connection.

Abstract: A method and coupling for severing and rejoining sealed tubing without the loss of the seal especially adapted to the installation of charged refrigerant lines into the refrigerator cabinetry. The method includes the crimping of the tubing wall at the point to be severed, sealing of the crimped tube walls, as by welding, and severing of the tube through the crimp. To rejoin the ends, a rejoinder coupling is utilized having end sections receiving and sealed to the crimped tube ends. The coupling also includes an axially compressible body section within which is disposed a piercing tool having a pair of penetrating ends adapted to pierce each of the crimped tube ends upon pushing the tube ends together, the compressible body section accommodating the axial tube movement toward each other in carrying out the piercing.

Abstract: A metallic clip for holding the end bar of a sinuous cushion-supporting spring in position on the wooden rail of an article of furniture and having a horizontal base portion which seats on the top surface of the rail and a downturned flange which lies flush with the outside face of the rail, such flange having rail-penetrating anchor prongs which, when the clip is applied enters the wood transversely of the general plane of the wood grain, preferably at a right angle so as to inhibit splitting of the rail. The clip is formed from a flat metal blank by a punch press stamping operation in such a manner so that each prong is shorter than the width of the blank with the two prongs interfitting so that when they are bent out of the plane of the flange.

Abstract: In a composite beam, a connecting element interconnects a concrete slab and a downwardly depending structural steel member. The connecting element is L-shaped having an elongated base member which is secured by one or more fastening elements to the structural steel member and an elongated anchor strap extending angularly from the base member and incorporated into the concrete slab. Supporting webs are secured to and extend between the base member and the anchor strap. The part of the base member encircling the openings through which the fastening elements pass is deformed to provide rounded recesses. The anchor strap can be made more rigid by forming a corrugation-like recess extending in the elongated direction of the strap. When a force is applied to the anchor strap causing it to move angularly away from the base member, the support webs cause the adjacent surfaces of the base member to act as deformation zones relieving the force on the connection between the base member and the structural steel member.

Abstract: A prefabricated sheet metal wall module comprises: an upper horizontal cap member of inverted U-shaped cross-sectional configuration with a pair of parallel longitudinal dependent side flanges; a lower horizontal floor track member of U-shaped cross-sectional configuration with a pair of parallel upwardly extending longitudinal side flanges; and a series of parallel upright studs each having a pair of opposite longitudinal side flanges. The upper and lower ends of each stud telescope into the upper and lower horizontal members respectively with the side flanges of the stud in intimate surface contact with the side flanges of the horizontal members thereby providing four rectangular areas of two layers of metal.