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The other end of the hose is inserted into a wall-mounted vacuum inlet, after opening the spring-loaded cover door. [4] In some designs, opening the door switches on the vacuum motor; in other designs, insertion of the metallic hose-end fitting bridges two electrical contacts, signalling the motor to turn on.
The door holders release, allowing the doors to close automatically using door closers. [1] [2] The electric power to keep the doors open is typically 12 VDC, 24 VDC (common), 24 VAC, 120 VAC, or 240 VAC. The closed doors may or may not mechanically latch or lock in the closed position.
5-inch (13 cm) flex suction hose with Storz fittings, mounted on an engine. Flexible suction hose (Flex suction or suction hose), not to be confused with hard suction hose in U.S., is a specific type of fire hose used in drafting operations, when a fire engine uses a vacuum to draw water from a portable water tank, pool, or other static water source.
Adapter used to attach a smaller diameter source hose to a larger diameter receiving hose. Indian pump (aka Indian tank) A brand of five-gallon water can, or back-pack bladder, featuring a short hose and hand pump for use in wildland firefighting. Intake Part of pump where water enters when pump forms partial vacuum. In-line eductor
Shop-Vac was founded by Martin Miller in 1953 under Craft Tool Company of New York. Miller wanted to replace the broom and dust pan in his workshop with a vacuum cleaner capable of collecting wood and metal chips too large for a conventional machine.
A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar. While originally conceived as a way to prevent crowd crushing in an emergency, crash bars are now used as the primary door opening mechanism in many commercial buildings.
Kirby Vacuums are sold via door-to-door or though arranged-scheduled in-home demonstrations via their website [3] and the company is a member of the Direct Selling Association. The Kirby website can also take vacuum cleaner orders and ship directly to the customer as well, without having to arrange for a scheduled an in-home demonstration.
The most widely used form is the interrupter bell, which is a mechanical bell that produces a continuous sound when current is applied. See animation, above. The bell or gong (B), which is often in the shape of a cup or half-sphere, is struck by a spring-loaded arm (A) with a metal ball on the end called a clapper, actuated by an electromagnet ...