Registers – Calculators – Input-output calculator to indicator – printer – etc.
Patent
1975-07-07
1976-11-16
Witkowski, Stanley J.
Registers
Calculators
Input-output calculator to indicator, printer, etc.
235 83, G06G 114, G06G 116
Patent
active
039926109
ABSTRACT:
The disclosure embraces a manually operated weight and balance calculator for use with a slide card containing a graphic display of the weight-balance tolerance characteristics for a particular type of aircraft; the calculator includes a carrier channel for movably supporting a card in a selected position; spaced apart arcuate portions are provided for rotatably retaining a flat disc member; the disc member is provided with an outer rim portion which carries markings thereon alignable with markings formed on one of the arcuate portions; the disc member is provided with a central portion which is transparent to permit observation of a card supported by the calculator; the transparent portion is also provided with a plurality of parallel slots which permit access to the card carried by the calculator for the purpose of placing a series of markings on the card which are characteristic of the magnitude and position of the loads being carried by the aircraft and which will permit visual observation of the effect of changes in the magnitude and position of the loads relative to the weight and balance tolerances of the aircraft.
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patent: 3059848 (1962-10-01), Moen
patent: 3086703 (1963-04-01), Germack
patent: 3375974 (1968-04-01), Naber et al.
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