摘要:
A substitute strip of collated nails having cylindrical shanks of an uniform diameter, which is smaller than the uniform diameter of the shanks of the nails of a standard strip, and being collated by a pair of tapes. Each tape extends across the nail shanks and is adhered by an adhesive layer to a respective one of diametrically opposed areas on the shank of each nail of the substitute strip. As distinguished from the standard strip, at least one tape of the substitute strip has an outer rib extending along such tape. Because of the outer rib or outer ribs, the substitute strip and the standard tape can be interchangeably fed by a nail-feeding magazine of a rapidly acting, nail-driving tool.
摘要:
Wire nails are collated by means for conveying the nails in a specified manner and by means comprising a wheel for engaging keyways defining flat surfaces on the shanks of the nails. Each nail is rotated by the wheel, about an axis of the shank of such nail, to such extent as may be then necessary to orient the keyways of such nail and of other nails with such surfaces defining a plane. The wheel fits between end surfaces defined by the keyways so as to cause the keyways that have been engaged by the wheel to define a continuous channel.
摘要:
A nail having an offset head is configured with a multi-step support gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the head. A first portion of the gusset defines an angle relative to the shank axis and the second portion of the gusset defines an angle relative to the shank axis different from that of the first portion. The support gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied.
摘要:
A building assembly comprises a wooden board, a metal framing member, and a fastener having an elongate shank, an enlarged head, and a generally pointed end and fastening the board to the framing member. The shank has a ringed portion with annular grooves defining annular rings having a uniform, outer diameter, helical grooves intersecting the annular grooves, a cylindrical land having a smaller diameter and dividing the ringed portion into an axially longer subportion nearer to the tip and an axially shorter subportion nearer the head, a cylindrical land between the tip and the ringed portion, and a cylindrical land between the head and the ringed portion. The fastener is driven through the board and through the framing member wall so that the head bears against the board, so that the tip and the shank form, from the wall of the framing member, a generally annular lip projecting toward the tip and so that the lip is disposed around the cylindrical land dividing the ringed portion. The wall of the framing member has sufficient resiliency for the lip when disposed around the cylindrical land to have an inner diameter smaller than the outer diameter of the annular ring nearest to the cylindrical land among the annular rings of the subportion nearer to the tip. Each helical groove taken in cross-section is either symmetrical or asymmetrical with respect to a plane comprising the axis defined by the shank and intersecting said helical groove where such helical groove is deepest.
摘要:
A process for coating a metal fastener with a coating composition that has a particular affinity for plaster materials is disclosed. The composition comprises a mixture of a copolymer of an aromatic monomer, preferably styrene, and a monomer with .alpha., .beta. unsaturation with carboxyl groups, preferably maleic anhydride, and a thermoplastic resin disposed within an organic solvent. The resin is preferably polyvinyl acetate, and the solvent can be an aromatic solvent, a ketone, a chlorohydrocarbon, or a mixture there of. The coating composition is disposed within a reservoir, and the fastener is dipped into the composition within the reservoir. The coated fastener is then subsequently dried at approximately ambient temperature.
摘要:
A method and apparatus for forming a head, having a controlled predetermined shape, on an end of an elongate member, such as a wire, which is formed into a fastener, where an end portion of the wire is secured in a predetermined position and axially compressed so as to expand a predetermined amount of wire material radially outwardly and thereby form the head on the wire, and where material flow is directed during axial compression so as to provide the controlled predetermined shape of the head.
摘要:
A full-round head nail having an offset head is configured with a gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the round head such that no heel is formed at a point tangential to both the head and the shank. The gusset has a lofted surface tapering radially from a roundness at the zero heel to a taper at the toe. The gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied.
摘要:
A full-round head nail having an offset head is configured with a gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the round head such that no heel is formed at a point tangential to both the head and the shank. The gusset has a lofted surface tapering radially from a roundness at the zero heel to a taper at the toe. The gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied.
摘要:
A steel fastener has an elongate shank, an enlarged head formed at one end of the shank, and a generally pointed tip formed at the other end of the shank. A grooved portion of the shank is formed with helical grooves defining helical ribs and with annular grooves defining annular rings. The shank has a cylindrical portion between the grooved portion and the tip and a cylindrical portion between the grooved portion and the head. Each of the annular grooves has a root where deepest and each of the annular rings has a crest where largest. The roots define an imaginary cone diverging toward the tip. The crests define an imaginary cone converging toward the tip. The shank has an exterior surface coated with a polymeric coating, which is formed from an aqueous composition containing a water-based acrylic resin and a water-based polyurethane resin. A zinc layer and a chromate conversion layer are provided between the polymeric coating and the exterior surface of the shank.
摘要:
A workpiece-treating system and a related method are disclosed. Workpeices, such as for example coils of collated nails, are conveyed successively into a first container for treatment within a first bath, such as, for example a nail-cleaning bath, out from the first container, into a second container for treatment within a second bath, such as, for example nail-coating bath, and out from the second bath. A carrousel having three workpiece-holding platforms is used to convey the workpieces as mentioned. Means are provided for mounting the carrousel so as to enable the platforms to be conjointly and selectively raised or lowered and to enable the carrousel to be selectively indexed about a vertical axis through a cycle of three working positions when the platforms are raised. Means are provided for rotating each platform about a vertical axis for a selected period of time. The respective containers are positioned where a selected platform is lowerable into the first container and a different platform is lowerable into the second container in each working position of the carrousel.