Mechanical guns and projectors – Element – Trigger or releasing mechanism
Patent
1982-07-22
1985-02-12
Apley, Richard J.
Mechanical guns and projectors
Element
Trigger or releasing mechanism
F41B 500
Patent
active
044984480
ABSTRACT:
A mechanical bowstring release device automatically biased to the locked position having a hollow, preferably generally cylindrical housing having a central space along the length thereof and a bowstring retainer bar pivotably secured to the housing in the space. A string-retaining end of the bar extends into an opening in the front end of the housing. The bar also includes an opposite coupling end. The bar is pivotable between a bowstring-drawing locked position and a bowstring-releasing unlocked position. An elongated lever arm extends longitudinally of and is pivoted in the housing space, the rear portion thereof extending rearwardly of the housing, the front end thereof being adjacent and generally rearward of the retainer coupling end. One or more couplers connect the front end of the lever arm and the coupling end of the bar. A biasing spring automatically urges the front end of the arm into a position which locks the bar. Finger pressure against the arm rear end results in pivoting of that arm front end to cause movement of the couplers and bar coupling end to cause the bar to pivot into the unlocked string-releasing position. A retainer limit component is also present to prevent rotation of the retainer bar to an unlocked position unbiased by the biasing spring toward the locked position. The device operates smoothly in a safe efficient manner, and the retainer bar can be fully manipulated solely by the lever arm to couple the device to and uncouple it from a bowstring.
REFERENCES:
patent: 2417791 (1947-03-01), Tyszkiewicz
patent: 4022181 (1977-05-01), Fletcher
patent: 4257386 (1981-03-01), Gazzara
Apley Richard J.
Browne William R.
Nist Donald E.
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