Search results
Results from the WOW.Com Content Network
A pilot ladder has specific regulations on step size, spacing and the use of spreaders. It is the use of spreaders (long treads that extend well past the vertical ropes) in a pilot ladder that distinguishes it from a Jacob's ladder. When not being used, the ladder is stowed away, usually rolled up, rather than left hanging.
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.
Otherwise, repeat the whole process starting from step 1 to step 5. The same principle applies for a bulls-eye level: Bring the level parallel to any two of the foot screws, by rotating the upper part of the instrument. The bubble is brought to the centre of the level tube by rotating both the foot screws either inward or outward.
The title of Ladder Keeper does not appear after 1831 (although there is a gap in records from 1835 to 1856). William Balsley, an uncle, was on the town council at the time the office was created. Although none of his family seems to have held this new office, one can only speculate whether it somehow stimulated an interest in ladders on the ...
Download as PDF; Printable version; ... The website's name is based on the phrase "show me a 10 foot wall and I'll show you a 12 foot ladder." ... including txtify.it ...
A tripod is a portable three-legged frame or stand, used as a platform for supporting the weight and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads as well as horizontal shear forces , and better leverage for resisting tipping over due to lateral ...
Laboratory Tripod. A laboratory tripod is a three-legged platform used to support flasks and beakers. Tripods are usually made of stainless steel or aluminium and made light-weight for efficient portability within the lab. Often a wire gauze is placed on top of the tripod to provide a flat
The ladder approach is a widely taught lifesaving technique and is used to promote the safety of a rescuer during an aquatic rescue. [ 1 ] [ 2 ] The approach stresses using the least dangerous method possible during a rescue, and moving on to more dangerous options if it becomes necessary to do so.