Device for checking the setting of the arrow guide button on a s

Details Device for checking the setting of the arrow guide button on a s Device for checking the setting of the arrow guide button on a s

1985-09-11

1987-03-31

Frankfort, Charles

Geometrical instruments

Area integrators

Electrical

7386262, G01B 514

Patent

active

046531912

ABSTRACT:
A device for checking the setting on a sports bow having a bow window and a spring-biased arrow guide button projecting from the bow window includes a measuring sleeve provided with a scale to measure the projection of the arrow guide button from the bow window when being in contact with the arrow guide button. For measuring the spring force acting on the arrow guide button, the sleeve accommodates a spring bolt which is provided with a marking. By screwing a setting nut and a counter nut on the sleeve, the spring bolt is forced against the arrow guide button until the marking appears in a viewing window of the sleeve. The spring force can then be read on another scale displayed on the sleeve.

REFERENCES:
patent: 1825491 (1931-09-01), Walters
patent: 2400371 (1946-05-01), Reeser
patent: 2520022 (1950-08-01), Vobeda
patent: 3482563 (1969-12-01), Pint
patent: 4432246 (1984-02-01), Granat

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