Mechanical guns and projectors – Spring – Bow
Patent
1976-04-05
1978-03-14
Marlo, George J.
Mechanical guns and projectors
Spring
Bow
124 89, F41B 500
Patent
active
040785378
ABSTRACT:
An archery bow assembly including a pair of limbs each of which has a distal end. Each distal end includes a first surface connected at a ridge to a second surface. A third surface extends from each of the second surfaces and the second and third surfaces define a ledge. In a first embodiment, a bowstring is connected to a pair of rigid links and each of the links is pivotally connected to a respective support arm extending rigidly from the adjacent limb for pivotal movement of each of the links relative to the support arms. Each link rotatably supports a roller at its distal end for movement over the adjacent first surface, over the ridge, onto the second surface and onto the third surface as the bowstring is drawn from a rest position through a predetermined drawn position. The drawing force follows a continuous curve to the predetermined drawn position where the curve becomes discontinuous as the rollers move over the adjacent ridges and onto the second surfaces thereby transferring a predetermined amount of the drawing force from the bowstring through the links to the support arms. In second and third embodiments the links are replaced by flexible cable arms.
REFERENCES:
patent: 3486495 (1969-12-01), Allen
patent: 3552373 (1971-01-01), Van Hecke
patent: 3595213 (1971-07-01), Storer
patent: 3625193 (1971-12-01), Palma
patent: 3744473 (1973-07-01), Nishioka
patent: 3874359 (1975-04-01), Cesin
patent: 3989026 (1976-11-01), Nishioka
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