Photographic bellows unit

Details Photographic bellows unit Photographic bellows unit

1979-08-15

1982-05-25

Griffin, Donald A.

G03B 1704

Patent

active

043314082

ABSTRACT:
The photographic bellows unit is provided with a device for indicating the distance between the standards which support the bellows and are adjustable relative to each other. There are arranged between the standards (2;3) two scissors-shaped levers (8;13) which are hingedly inter-connected at one lever end and whose other end is rotatably hinged to respectively one of the standards (2;3). An index (15) is arranged on one pivotable lever (13) and a measuring scale is arranged on the other pivotable lever (8).
In this manner it is possible to avoid the computational determination of the respective distance between the two standards as the indicating device allows the distance between the two standards to be read directly irrespective of the position of the standards with respect to the guide.

REFERENCES:
patent: 474708 (1892-05-01), Wiest
patent: 1731198 (1929-10-01), Kawatch
patent: 2005417 (1935-06-01), Fuerst

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