H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/269
H01H 43/02 (2006.01) G04C 21/00 (2006.01) G04C 23/38 (2006.01) H01H 43/10 (2006.01)
Patent
CA 1123032
M-6428T TIMING MECHANISM WITH TWO SEPARATE PROGRAMS OPERATING SEPARATE SWITCH ACTUATORS AND HAVING AN ALARM SYSTEM ABSTRACT OF DISCLOSURE First and second movable spring contact blades are disposed in substantially parallel relation and have substantially equal lengths with electrical contacts disposed near their distal ends. A third spring contact blade having electrical contacts at its distal end is fixedly disposed between the first two blades and has a shorter length than the two blades to provide a gap between the first two. The elec- trical contacts are in line with and facing each other at a distance just short of the gap. The combination of the electrical contacts provides a double pole switch means. Two independently operable actu- ator arms enter the gap to selectively engage the first and second spring contact blades to selectively open and close the electrical contacts. The two actuator arms in combination with the electrical contacts provide a program of a short pulsing duration within a longer program. There is a selector means which permits the actuator arm for the shorter duration to be operably removed from the system. One of the two actuator arms is responsive to a sharp drop in a step of a cam means, the arm engaging the bottom of the step to limit its travel. A striker carried by the arm continues in the direction of the drop to engage an alarm means.
335237
Schuder Maurice E.
Stafford Richard W.
Mallory (p. R.) & Co. Inc.
Swabey Ogilvy Renault
LandOfFree
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