Abstract: A tool for driving a fastener pin into a substrate to secure a fastener body to the substrate for fixing insulation or other cladding, the tool being of the type comprising a fastener guide and a driving piston driven along the fastener guide by gas pressure to engage and drive the pin, the fastener guide being displaceable axially inwardly relative to the body of the tool in order to cock the tool for firing of the driving piston, wherein the tool comprises means for enabling the tool to push the fastener body through insulation or other cladding into engagement with the underlying substrate without putting the tool into a condition in which firing can occur, the tool being thereafter able to be put into a condition to permit firing to take place.

Abstract: A fastener for use in fastening insulation to a substrate, comprising a fastener body having a head for engagement with an outer face of the insulation, a tubular stem extending inwardly from the head for penetration through the insulation into engagement with the substrate, the stem having a pointed tip portion remote from the head for penetration of the insulation and the stem being hollow to receive a fastening pin having a pointed end fully enclosed within the stem adjacent the tip, the interior of the stem being adapted to receive a fastener guide of a fastening tool operative to drive the pin into the substrate by means of a driving piston propelled along the fastener guide by gas pressure on firing of the tool, the fastener being mounted to the fastener guide prior to penetration of the insulation whereby penetration of the insulation by the stem occurs by manual pressure applied by an operator to the tool prior to firing of the tool to drive the pin into the substrate, the external surface of the stem

Abstract: An explosively actuated fastener driving tool of the type having a driving piston for driving a fastener at the forward end of a barrel upon firing of the tool has a retractor pawl assembly with a pawl for resetting the piston into a rear end of the barrel by forward movement of the barrel relative to the receiver following firing. The pawl assembly is so constructed that the pawl can be withdrawn from the barrel to permit removal of the barrel for routine cleaning and maintenance but in this condition the assembly still remains attached to the tool to prevent components from being misplaced.

Abstract: An edge-lift anchor for tilt-up lifting of a concrete component has, at a lower part of its head an element for anchoring the head against shear forces acting during the tilt-up phase of lifting. Such element comprises an aperture to receive concrete, an aperture to receive a reinforcing bar, or a shear plate welded to the lower edge of the head.

Abstract: A tool for driving a fastener pin into a substrate to secure a fastener body to the substrate for fixing insulation or other cladding, the tool being of the type comprising a fastener guide and a driving piston driven along the fastener guide by gas pressure to engage and drive the pin, the fastener guide being displaceable axially inwardly relative to the body of the tool in order to cock the tool for firing of the driving piston, wherein the tool comprises means for enabling the tool to push the fastener body through insulation or other cladding into engagement with the underlying substrate without putting the tool into a condition in which firing can occur, the tool being thereafter able to be put into a condition to permit firing to take place.

Abstract: A fastener for use in fastening insulation to a substrate, comprising a fastener body having a head for engagement with an outer face of the insulation, a tubular stem extending inwardly from the head for penetration through the insulation into engagement with the substrate, the stem having a pointed tip portion remote from the head for penetration of the insulation and the stem being hollow to receive a fastening pin having a pointed end fully enclosed within the stem adjacent the tip, the interior of the stem being adapted to receive a fastener guide of a fastening tool operative to drive the pin into the substrate by means of a driving piston propelled along the fastener guide by gas pressure on firing of the tool, the fastener being mounted to the fastener guide prior to penetration of the insulation whereby penetration of the insulation by the stem occurs by manual pressure applied by an operator to the tool prior to firing of the tool to drive the pin into the substrate, the external surface of the stem

Abstract: A shear plate for application to the outer end portion of a ferrule to be cast into a concrete component such as a wall panel, the shear plate having an outer portion engageable with the ferrule and, beyond the outer portion, a portion shaped to incline away from the adjacent surface of the concrete component to which the outer end of the ferrule is to be exposed. The shear plate enables the ferrule to be situated close to an edge of the component in a situation in which it will be subjected to shear loading in a direction towards that edge.

Abstract: A timber wall frame for use in building construction has an opening for a door or window defined at each side by a vertically extending prop stud and jamb stud in side by side relation, and the opening is defined from above by a horizontally extending top plate of the wall frame. The prop stud and jamb stud are of the same length and extend to the underside of the top plate. A lintel of sheet metal spans the upper side of the opening, the lintel having a vertical wall and a horizontal flange along the upper edge of the wall. The lintel is applied to the frame so that its vertical wall overlies a face of each stud and a face of the top plate, with the horizontal flange of the lintel being above the top plate.

Abstract: An explosively actuated fastener driving tool of the type having a driving piston for driving a fastener at the forward end of a barrel upon firing of the tool has a retractor pawl assembly with a pawl for resetting the piston into a rear end of the barrel by forward movement of the barrel relative to the receiver following firing. The pawl assembly is so constructed that the pawl can be withdrawn from the barrel to permit removal of the barrel for routine cleaning and maintenance but in this condition the assembly still remains attached to the tool to prevent components from being misplaced.

Abstract: A timber wall frame for use in building construction has an opening for a door or window defined at each side by a vertically extending prop stud and jamb stud in side by side relation, and the opening is defined from above by a horizontally extending top plate of the wall frame. The prop stud and jamb stud are of the same length and extend to the underside of the top plate. A lintel of sheet metal spans the upper side of the opening, the lintel having a vertical wall and a horizontal flange along the upper edge of the wall. The lintel is applied to the frame so that its vertical wall overlies a face of each stud and a face of the top plate, with the horizontal flange of the lintel being above the top plate.