Registers – Operating devices – Plural registers
Patent
1975-11-06
1978-05-09
Tomsky, Stephen J.
Registers
Operating devices
Plural registers
235132A, 355 14, 235132R, G06M 302, G06F 1518
Patent
active
040888720
ABSTRACT:
A counting device including a click wheel operative integrally with a dial for setting the number of repetitive operations, the click wheel having teeth therearound, the number of which corresponds to the number of the repetitive operations; a ratchet wheel having a projection, the ratchet wheel being rotated to a starting position thereof by rotation of the click wheel; a feeding pawl for feeding the ratchet wheel in response to an external signal for every operation; a preventing structure for preventing the ratchet wheel from returning by pressure contact or engagement; and a start button integrally formed with a center shaft and a rotation preventing member of the center shaft, the start button being locked by the preventing structure for said ratchet wheel, and the rotation preventing member being engageable with the preventing structure; the engagement between the rotation preventing member and the preventing structure changing to open a switch as soon as the projection of the ratchet wheel releases the preventing structure; the start button closing the switch, when depressed after the ratchet wheel is reset to the starting position thereof, keeping the preventing structure in the releasing position thereof, and the starting button being kept in the depressed position and the ratchet wheel being prevented from returning by another engagement between the rotation preventing member and the preventing structure. This is a division of application Ser. No. 581,546, now U.S. Pat. No. 4,013,359, filed May 28, 1975, which is a continuation of application Ser. No. 413,221 filed Nov. 6, 1973, now abandoned, which, in turn, is a division of application Ser. No. 258,820, filed June 1, 1972, now U.S. Pat. No. 3,804,512.
REFERENCES:
patent: 2904251 (1959-09-01), Hazard et al.
patent: 3653756 (1972-04-01), Mielnikowski, Jr. et al.
patent: 3659084 (1972-04-01), Engel et al.
patent: 3710079 (1973-01-01), Cralle, Jr. et al.
patent: 3731874 (1973-05-01), Fowlie
Hattori Hiroyuki
Iida Toshihide
Komori Shigehiro
Miyamoto Koichi
Sakamaki Hisashi
Canon Kabushiki Kaisha
Tomsky Stephen J.
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