Motorized archery sight and range finder

Claim 1

An archery sight and range finder comprising, in combination: a. an elongate slide, b. means for mounting the slide vertically on a central portion of an archer''s bow, c. a pair of sliders carried by and vertically movable on the slide, d. a drive member pivotally carried by the slide and having an actuating arm, e. a pair of links pivotally connected to said actuating arm at spaced-apart points thereon, f. said links being respectively pivotally connected to the sliders whereby movement of the arm shifts the sliders at different rates along the slide to vary the spacing between them and simultaneously reposition them vertically, g. a pair of projecting sight bars disposed alongside each other respectively on said sliders and arranged to be located at the path of vision of an archer who is sighting game with the bow in shooting position, h. said sight bars thereby having a variable spacing and variable vertical positioning by virtue of their being carried by the respective sliders, whereby game can be visually located between the sight bars, i. a bull''s-eye type sight carried by one of said sliders and disposed between the sight bars, for alignment with the game being sighted, j. a gear train comprising a worm gear rigidly connected to the drive member to operate the latter at a reduced speed, comprising a worm engaged with the worm gear, a second worm gear rigid with said worm, and a second worm engaged with the second worm gear, k. an electric motor having its shaft rigid with the second worm of the gear train to drive the same, l. an electric battery, m. a reversing switch having forward, reverse, and open positions, n. circuit means connecting the battery to the motor through said reversing switch, o. a housing below and carried by said slide, in which the drive member, gear train, electric motor and reversing switch are all mounted, said housing including a depending portion of smaller girth in which the reversing switch is disposed, and p. a pair of spring-biased push buttons connected to the reversing switch and protruding from a wall of the depending portion of the housing in a location enabling them to be easily and quickly actuated for effecting adjustment of the sliders.