This arch, also called a flat arch, straight arch, minor arch, segmented arch, or multi-centered arch, has a horizontal top surface, with a span of up to 6 feet, can support loads up to 1,000 pounds per square foot, with a rise to span ratio of 0.15 or less.
Hand tool, which consists of a long base plate with a sharply angled cutting blade, extending through the slot in the base. When the base plate is slid along a piece of wood, the blade shaves off thin layers of the wood, unless the extension is adjusted for thicker layers.
Screw jack or lifting device with wide based footing and a top plate for spreading the load. Used for raising and supporting a horizontal member, which is sagging, possibly a cracked floor joist, it can be left in place permanently.
Type of window made up of a number of rectangular panes of glass or louvers, placed in slots in a frame, one above the other. The panes are held in place by a pinned connection that rotates, allowing the panes to be opened simultaneously to provide a flow of air. When closed, the panes overlap slightly, preventing rain from entering the structure, however they do not seal tightly so this type of window works better in mild climates. It is often referred to as a louvered window.
A nut, which is tightened against the primary nut, to keep it from loosening, when the primary nut is tightened to the needed torque. A jam nut may be the same as the primary nut or may be made of stamped sheet metal.
Factor used by appraisers and investors to determine the changes needed in operating income to obtain a desired rate of return. This factor is determined after consideration of the location, rental, similar properties and cost of maintenance.
1. Digging holes by directing water under high pressure to a certain spot.
2. Injection of water into the ground with a metal pipe so that the action of the water will consolidate the loose earth to help settle unstable ground or backfill.