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The corner of a chisel, knife, or gouge bevel which meets the back of the blade and polishes the cut. holdfast. Also called a hold down. A hold-down iron fitting into a hole in a bench and tightened or loosened by hammer taps. hollow grind A concave bevel on a chisel, gouge, or knife.
Tongue and groove is a method of fitting similar objects together, edge to edge, used mainly with wood, in flooring, parquetry, panelling, and similar constructions. Tongue and groove joints allow two flat pieces to be joined strongly together to make a single flat surface.
In machining a chamfer is a slope cut at any right-angled edge of a workpiece, e.g. holes; the ends of rods, bolts, and pins; the corners of the long-edges of plates; any other place where two surfaces meet at a sharp angle. Chamfering eases assembly, e.g. the insertion of bolts into holes, or nuts.
The curtain wall itself, however, is not ordinarily required to have a rating. This causes a quandary as compartmentalization (fire protection) is typically based upon closed compartments to avoid fire and smoke migrations beyond each engaged compartment. A curtain wall by its very nature prevents the completion of the compartment (or envelope).
Stopped end: The end of a wall that does not abut any other component. Stretcher: A brick laid flat with its long narrow side exposed; Toothing: The forming of a temporary stopped end in such a way as to allow the bond to continue at a later date as the work proceeds. Tumbling in: Bonding a battered buttress or breast into a horizontal wall.
The keystones and corner blocks are inset 1 inch (25 mm) from the outside edge, which allows for flats to be hinged or butted together. They are then glued in place, and stapled or screwed down. The flat can then be flipped over and covered with muslin or decorative plywood. Toggles in a Broadway flat are placed on 4 ft (1.2 m) centers.
Wall framing in house construction includes the vertical and horizontal members of exterior walls and interior partitions, both of bearing walls and non-bearing walls. . These stick members, referred to as studs, wall plates and lintels (sometimes called headers), serve as a nailing base for all covering material and support the upper floor platforms, which provide the lateral strength along a
The screen manufacturer may omit some of the holes except the outer corners if the remaining holes are enough to carry the weight of the screen and its official add-ons (such as their own sound bar). The mounting area must be the part of the screen furthest towards the back (so no part of the screen may extend further back).