Title: Digital circuit for controlling the return speed of a business machine carriage

Abstract: A digital electrical circuit for selectively activating a clutch mechanism for controlling the return speed of a business machine carriage. A carriage speed pulse transducer provides a series of sync pulses with intervals between each sync pulse being a function of the return speed of the carriage. These sync pulses and a carriage return command pulse are gated into control circuitry. The control circuitry provides a continuous pulse when the interval of the sync pulses signals that the carriage has exceeded a desired speed. The continuous pulse is used to activate the clutch mechanism for reducing the return speed of the carriage.

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Inventors: Manthiram, Chockalingam (Plymouth, MI, US)

Application Number: 553536
Filing Date: 1975-02-27
Publication_date: 1977-06-14
Assignee: Burroughs Corporation (Detroit, MI)
Primary Class(es): 400/317.1 388/828, 388/832, 388/933, 400/279, 400/317.3, 400/338
Other Classes:
US Patent Ref:

3292530	Dec, 1966	Martin	197/65.
3578129	May, 1971	Kato et al.	197/187.
3582699	Jun, 1971	Badessa et al.	318/327.
3670861	Jun, 1972	Zenner et al.	197/68.
3703949	Nov, 1972	Howard et al.	197/1.
3752288	Aug, 1973	Detig et al.	197/1.
3834505	Sep, 1974	Fowler et al.	197/66.
3882988	May, 1975	Sloan et al.	197/66.
3898545	Aug, 1975	Loppa et al.	318/313.

Other Refs:
Primary Examiner: Rader, Ralph T.
Assistant Examiner:
Attorney: Syrowik; David R., Schivley; G. Gregory, Fissell, Jr.; Carl