Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1980-01-16
1981-09-01
Truhe, J. V.
Electricity: circuit makers and breakers
Retarded
Clock train
74575, 194 1M, G07F 1512
Patent
active
042873967
ABSTRACT:
A control device for a coin operated mechanism wherein the device includes a ratchet wheel formed having a plurality of teeth each having a front and a back face defining a tooth apex. The back face of each tooth and the front face of the next adjacent tooth define a well therebetween. The front face of each tooth is formed having a step which receives a ratchet follower to displace a normally open switch to its closed state at the end of each stepping operation of the ratchet wheel to operate the mechanism. A star wheel is operatively driven by a timing mechanism when the switch is in its closed state and is disposed to engage the ratchet wheel to cause rotation of the ratchet wheel conjointly upon rotation of the star wheel. The ratchet follower is displaced out of engagement with the ratchet tooth step and rides up the front face of the tooth over the apex and drops down the back face of the tooth, upon conjoint rotation of the star wheel and the ratchet wheel, whereby the ratchet follower is received within the next adjacent well thereby to open the switch.
REFERENCES:
patent: 2915692 (1959-12-01), Greenwald
patent: 3075056 (1961-09-01), Hall
patent: 3168947 (1962-08-01), Greenwald
patent: 3614681 (1971-09-01), Greenwald
patent: 3683711 (1972-08-01), Bowman et al.
patent: 4094396 (1978-06-01), Greenwald
Greenwald Electro-Mechanical Consultants, Inc.
Rebsch Donald L.
Truhe J. V.
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