Abstract: A platform for mounting an air conditioner on an inclined roof is described. The platform has a substantially rectangular floor, a rear wall depending upwardly and having a horizontal upper edge, and side walls, each said side wall having an inclined upper edge extending from the upper edge of said rear wall to a front corner of the rectangular wall. The platform has a first flange extending from the horizontal upper edge of the rear wall, a second flange extending from the front edge of the floor.

Abstract: A construction block includes rectangular front and rear panels and at least one web connecting the front and rear panels. Each of the front and rear panels has top, bottom, and right and left edge surfaces. At least one web having top and bottom surfaces co-extensive with the top and bottom of the front and rear panels is provided to define top and bottom surfaces of the block. The top surface of the block has a shallow rectangular ridge along its length, flanked by outer support surfaces. The lower surface of the block has a shallow rectangular channel along its length, flanked by flat outer feet corresponding to the outer support surfaces. The right and left edge surfaces of the front and rear panels are profiled to interfit with one another.

Abstract: A construction block includes rectangular front and rear panels and at least one web connecting the front and rear panels. Each of the front and rear panels has top, bottom, and right and left edge surfaces. At least one web having top and bottom surfaces co-extensive with the top and bottom of the front and rear panels is provided to define top and bottom surfaces of the block. The top surface of the block has a shallow rectangular ridge along its length, flanked by outer support surfaces. The lower surface of the block has a shallow rectangular channel along its length, flanked by flat outer feet corresponding to the outer support surfaces. The right and left edge surfaces of the front and rear panels are profiled to interfit with one another.

Abstract: A block for use in construction has opposed front and rear surfaces, opposed top and bottom surfaces, and a pair of opposed ends. The top and bottom surfaces are complementarity profiled to mutually interfit. The end surfaces are shaped to permit a plurality of blocks to be laid in a course with no mortar in between blocks in a course.

Abstract: A block for use in construction has opposed front and rear surfaces, opposed top and bottom surfaces, and a pair of opposed ends. The top and bottom surfaces are complementarity profiled to mutually interfit. The end surfaces are shaped to permit a plurality of blocks to be laid in a course with no mortar in between blocks in a course.

Abstract: A building block is provided for stacking with other like building blocks to fabricate a wall. The building block has top, bottom, front, rear and end surfaces. The front and rear surfaces are substantially planar. The top surface is ridged and the bottom surface is channeled to intermit with the ridge on the said bottom surface. The ends are notched so as to overlap, and present the appearance of a brick wall.

Abstract: A building block is provided for stacking with other like building blocks to fabricate a wall. The building block has top, bottom, front, rear and end surfaces. The front and rear surfaces are substantially planar. The top surface is ridged and the bottom surface is channeled to intermit with the ridge on the said bottom surface. The ends are notched so as to overlap, and present the appearance of a brick wall.

Abstract: A building block is provided for stacking with other like building blocks to fabricate a wall. The building block has top, bottom, front, rear and end surfaces. The front and rear surfaces are substantially planar. The top surface is ridged and the bottom surface is channeled to intermit with the ridge on the said bottom surface. The ends are notched so as to overlap, and present the appearance of a brick wall.

Abstract: The building block is provided. The block is substantially rectangular and has opposed first and second ends. First and second substantially congruent rectangular panels extend between the ends and are joined together by at least one web. Each panel has vertical end edges that are notched to fit with the end edges of another such block. The notches are disposed selectively on inside or outside corners of the respective blocks to enable adjacent blocks to interfit in a vertical joint.

Abstract: A tool for stripping insulation from wire has a handle and a knife blade extending therefrom. The knife blade has a flat surface and a sharp edge. A secondary blade is provided on the knife blade, offset therefrom.

Abstract: This invention relates to extruded carpentry framing, and particularly to extruded framing consisting of one piece construction having a complete finished look and connecting to traditional interior wall construction. The invention will allow quick and simple assembly of framing necessary for swinging, bifold and sliding doors.