Gear cutting – milling – or planing – Milling – With regulation of operation by templet – card – or other...
Patent
1982-06-25
1984-01-17
Yasich, Daniel M.
Gear cutting, milling, or planing
Milling
With regulation of operation by templet, card, or other...
73432R, 76110, 340680, 340686, 409131, B23C 116, G01R 3102
Patent
active
044261799
ABSTRACT:
A system for testing key duplicating machines to determine the accuracy thereof. This system is provided with a pair of identical detector plates each of which are intended for alignment positioning of the key and key blank within the two vises of the key duplicating machine. Portions of the detector plates which are to be in contact with the vises are provided with an insulating surface, and portions of the remainder of the detector plates are electrically conductive and are exposed for contact. An electrical circuit is provided which attaches to these detector plates such that electrical continuity can be determined visually when the guide member of the key duplicating machine contacts the detector plate held in the appropriate vise. In a similar manner, the continuity is determined when the cutter contacts the second detector plate when the second detector plate is held in the vise which would normally hold a key blank and when continuity is indicated between both systems simultaneously, the key duplicating machine is in proper alignment. When the indication is not simultaneous, the guide member of the key duplicating machine may be adjusted in a appropriate direction such that simultaneous indication of continuity is achieved. Through use of the system any key duplicating machine may be periodically checked to determine its accuracy.
REFERENCES:
patent: 2717375 (1955-09-01), Lubkin
patent: 3116665 (1964-01-01), Reisner
patent: 3286596 (1966-11-01), Lieptz
patent: 3791240 (1974-02-01), Meoni
patent: 3902382 (1975-09-01), Lieptz
patent: 4386344 (1983-05-01), Vecchiatto
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