Geometrical instruments – Straight-line light ray type – Structurally installed
Patent
1985-01-25
1986-02-04
Stearns, Richard R.
Geometrical instruments
Straight-line light ray type
Structurally installed
F41G 146
Patent
active
045676682
ABSTRACT:
An archery bow signt including an extension bar, sight bar, carriage, sight-supporting block, and bubble level wherein the improvement is directed to an arrangement for pivotally adjusting one of the sight members relative to another. In the preferred embodiment, the member to be adjusted is mounted to an underlying, second member by two bolts or screws which ordinarily lock the two members together. In operation to make an adjustment, the locking screws are first loosened wherein one of the screws is then used to define the pivotal axis about which the adjustment is made. To do this, the shaft of the second screw is received in an elongated slot in the member to be adjusted and as this member is pivoted, the elongated slot therein accommodates the relative movement of the second screw. The fine adjustment of the two members is then accomplished by manipulation of only a single set screw which contacts the shaft of the second screw and works against a coil spring. In operation, the set screw can be moved in one direction against the shaft of the locking screw to pivotally move the first member relative to the second under the force of the advancing set screws; and, conversely, the set screw can be moved in the opposite direction to pivot the first member relative to the second under the force of the coil spring.
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King Freddie L.
Siekman August E.
Accra 300
Carson W. Scott
Stearns Richard R.
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