G - Physics – 01 – L
Patent
G - Physics
01
L
116/48
G01L 19/12 (2006.01)
Patent
CA 1113794
ABSTRACT A warning device for installation near a door or window and using conpressed air to produce noise from an air horn, and having a handle mounted on a shaft of the horn actuating mechanism and engageable with a door or window to move upon opening thereof, in which the handle is easily adjusted in angular position on the shaft. The shaft carries a fixed toothed member and the handle has a bulbous portion with teeth which are resiliently urged into engagement with those of the toothed member so that adjustment can be made by moving the handle axially away from the toothed member and re-engaging different teeth.
321184
General Time Corporation
Osler Hoskin & Harcourt Llp
LandOfFree
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