G - Physics – 06 – G
Patent
G - Physics
06
G
235/114
G06G 1/02 (2006.01) G06C 3/00 (2006.01) G06G 1/00 (2006.01)
Patent
CA 1083545
FIRE PROTECTION CALCULATOR AND METHOD THEREOF Abstract A calculator and method for simply and quickly selec- ting appropriate spot type fire detectors and determining their preferred locations in a chosen space division in accordance with standard spacing ratings. The slide rule-like calculator includes a body member, a slide member slidably positioned within said body member, and in one embodiment a cursor slidably encompassing both the body member and slide member. The body member comprises at least one logarithmic scale repre- senting one dimension of the space division and the slide member comprises at least one logarithmic scale representing the second dimension of the space division. Additionally, at least one fire detector scale, established with reference to standard space detector ratings, is included either on said body or slide member and an index or zero line is included on the other member. This calculator admits when constrained by the dimensions and ceiling type of the space to be protected of a simple accurate selection method for spot type fire detection devices of varied characteristics and capacities.
277615
American District Telegraph Company
Gowling Lafleur Henderson Llp
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