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The reduction compass or proportional dividers is a geometry tool with asymmetric-length branches to allow performing homothetic transformations, reproducing a pattern while enlarging or reducing its size and conserving angles. It was invented by Fabrizio Mordente before 1567.
Casa Loma, Toronto, Ontario, Canada Room-divider/screen, (Ethnographic Museum, Belgrade) A room divider for a conference hall. A room divider is a screen or piece of furniture placed in a way that divides a room into separate areas. [1] [2] Room dividers are used by interior designers and architects as means to divide space into separate ...
A drawback of a tool board is that it may occupy a large area on a wall, and that the tools can get less protection from dust. Some recommend to hang heavier tools like hammers at the bottom, [2] [3] and especially wooden tool boards may bend or break from heavy tools if the board is made of fiberboard or other weaker materials. [1]
Portable walls are not generally anchored to a floor or ceiling, unlike suspended accordion room dividers, and drapes, pipe and drape. They are different from traditional office cubicles in that portable walls often serve a temporary function rather than a permanent workspace, such as use for art exhibits, classrooms, triage areas, trade show ...
For example, there might be lath-and-plaster walls, or in colder areas thatch walls; these are still used in rustic teahouses and historic buildings (see images). Bark-and-bamboo walls, clapboard, and board-and-batten walls were also used. [91] Where affordable, though, the tendency was against permanent walls.
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A sliding T bevel, also known as a bevel gauge or false square [1] is an adjustable gauge for setting and transferring angles. Different from the square , which is fixed and can only set a 90° angle , the sliding T bevel can set any angle and transfer it on another piece.
The calculator described above was called "Model No. 1" . [6] Model 2 had scales on the inner cylinder for calculating logs and sines.The "Fuller-Bakewell" model 3 had two scales of angles printed on the inner cylinder to calculate cosine² and sine ⋅ cosine [note 1] for use by engineers and surveyors for tacheometry calculations.