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An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
The ladder itself is capable of being converted into several heights and configurations from a single ladder. Configurations include a straight or extension ladder, an A-frame ladder, a staircase ladder (an uneven A-frame for use on stairs), a 90° ladder, and both sides of a scaffolding trestle achieved through a triple locking hinge.
This means that if there is a 4" (100 mm) gutter projecting from the side of a building, a fixed ladder would have to have standoff brackets that were at least 11" (7" + 4") (280 mm) in length. Cages: Cages are optional for fixed ladders with a floor to floor elevation of less than 20' (6100 mm). They are often available for ladders with ...
Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...
Hi Roller Stand – A wide based stand that may extend up to 20 feet, it provides stability when used as support for butterflies and overheads on locations or supports large backdrops in a studio setting. Junior – A 2,000 watt light fixture that usually includes a one and 1 ⁄ 8-inch pin and is mounted into a female receiver on a stand.
The M927 (M928 w/winch), with an extra long wheelbase, had a 20 by 7 feet (6.1 m × 2.1 m) long box. There was no drop side version. Side racks and overhead bows with a canvas cover were standard but no troop seats were fitted.