Compound bow

Claim 2

An archer's bow comprising: a. a handle, b. a pair of limbs extending outwardly from the handle ends with said limbs having tip portions, c. a sheave mounted on each of said limb tip portions, d. a lever assembly including a lever arm mounted to said handle adjacent each said limb, e. a fixed pivot shaft on each said assembly and mounting an associated arm for pivoting therearound, f. bowstring means trained about said sheaves and said lever assemblies with drawing of said bowstring means causing said lever arms to pivot about their respective said pivot shafts when a draw force is applied, g. and means connecting each said limb tip portion with the adjacent lever arm, h. each said pivot shaft being engaged by said last-named means at maximum draw of said bowstring means to form a stop for the lever arm which mechanically limits the maximum draw distance.

Claim 3

The bow of claim 1 in which: a. said lever assemblies are independent of each other, b. said bowstring means includes a central stretch connected at its ends to a pair of end stretches, c. and each said end stretch is trained about its adjacent sheave and crosses said bow to and through the remote said lever assembly, and passes hence to the other of said sheaves where its terminus is anchored.

Claim 4

The bow of claim 2: a. in which each said lever arm includes a pair of pulleys over which the respective end stretch of said bowstring passes, b. and wherein each said lever assembly additionally includes a further pulley spaced inwardly from said lever arm, with the construction being such that each of said end stretches passes from its associated lever arm pulleys over said further pulley before passing to the other said sheave.

Claim 5

The bow of claim 3 in which said last-named means comprises: a. a cable of fixed length, with one end of said cable mounted adjacent said limb tip portion and the other end thereof mounted to an anchor on said lever arm, b. each said anchor being normally disposed inwardly and rearwardly of each said pivot shaft, c. each said anchor pivoting over the dead center of each of said pivot shafts during drawing of said bowstring means to reduce the draw force.

Claim 6

The bow of claim 1 in which said last-named means comprises: a. a cable of fixed length, with one end of said cable mounted adjacent said limb tip portion and the other end thereof mounted to an anchor on said lever arm, b. each said anchor being normally disposed inwardly and rearwardly of each said pivot shaft, c. each said anchor going over center of each said pivot shaft during drawing of said bowstring means to reduce the draw force.

Claim 7

An archer's bow comprising: a. a handle, b. a pair of limbs connected to and extending outwardly from the handle ends with said limbs having tip portions, c. a sheave mounted on each of said limb tip portions, d. a pair of independent lever assemblies with each said assembly including a lever arm pivotally connected to said handle adjacent each connection of said limb to said handle, e. means on each said assembly mounting each said lever arm for pivotal movement, f. and bowstring means including a central stretch and a pair of end stretches said bowstring means being connected at its ends respective to one end stretch of said pair of end stretches, g. each said end stretch being trained about its most adjacent said sheave and crossing said bow and extending to and operatively connected to the most remote said lever assembly, and passing hence to the other said sheave where its terminus is anchored.

Claim 8

An archer's bow comprising: a. a handle, b. a pair of limbs connected to and extending outwardly from the handle ends with said limbs having tip portions, c. a sheave mounted on each of said limb tip portions, d. a pair of independent lever assemblies with each said assembly including a lever arm pivotally connected to said handle adjacent each connection of said limb to said handle, e. means on each said assembly mounting each said lever arm for pivotal movement, f. and bowstring means including a central stretch and a pair of end stretches said bowstring means being connected at its ends respective to one end stretch of said pair of end stretches, g. each said end stretch being trained about its most adjacent said sheave and crossing said bow and extending to and operatively connected to the most remote said lever assembly, and passing hence to the other said sheave where its terminus is anchored.

Claim 9

The bow of claim 6: a. in which each said lever arm includes a pair of pulleys over which a respective end stretch of said bowstring means passes, b. and wherein each said lever assembly additionally includes a further pulley spaced inwardly from said lever arm, with the construction being such that each of said end stretches passes from its associated said lever arm pulleys over said further pulley before passing to the said other said sheave.