Title: Ratio computer

Abstract: A computer, for use with a machine tool, can make any of a number of calculations involving ratios between two operands to determine the angular velocity of the spindle of the machine, the velocity and position of a movable member such as a carriage, and the ratio between two velocities. Any of such calculations is selected by means of a selector switch and a second selector switch is settable to select a time base for the calculation. The operands are represented by pulses produced by transducers associated with movable members of the machine tool.

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Inventors: Brownell, Peter Gray (Elmhurst, IL, US)

Application Number: 437327
Filing Date: 1974-01-28
Publication_date: 1976-03-16
Assignee:
Primary Class(es): 702/145 318/603, 377/47, 708/653
Other Classes:
US Patent Ref:

3158854	Nov, 1964	Keen et al.	235/92.
3549868	Dec, 1970	Watson et al.	235/92.
3602700	Aug, 1971	Jerva et al.	235/92.

Other Refs:
Primary Examiner: Morrison, Malcolm A.
Assistant Examiner: Krass, Errol A.
Attorney: Neuman, Williams, Anderson & Olson