Geometrical instruments – Area integrators – Electrical
Patent
1975-04-28
1976-07-20
Pinkham, Richard C.
Geometrical instruments
Area integrators
Electrical
124 24R, G01B 330
Patent
active
039698254
ABSTRACT:
A bow square device of generally question mark shape, has a relatively flat body and has a channel therein whose center lies approximately within the plane containing the body. The channel defined by the body is adapted to confine the shaft of bow supported arrow therein. Spring chips are detachably mounted on each end of the body for detachably and slidably attaching the device to strung a bow string. The body may be slid along a strung bow string, while confining a bow supported arrow, so that when the shaft of the arrow is approximately perpendicular to the strung bow string, the pointed end of the arrow, which is confined by the device, will indicate the proper nocking point on the strung bow string. The portion of the body adapted to confine the bow supported arrow shaft is spaced from the strung bow string, thus enabling the arrow itself to be moved toward a strung bow string to enable the point of the arrow to locate the nocking point on the strung bow string.
REFERENCES:
patent: 1542159 (1925-06-01), Maxwell
patent: 3600814 (1971-08-01), Smith
patent: 3651578 (1972-03-01), Saunders et al.
Browne William R.
Miller Jr. Maurice L.
Pinkham Richard C.
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