US 5,243,955 A · Mechanical shooting apparatus

Abstract

A mechanical shooting apparatus is disclosed, the apparatus having an elongate body comprised of two connectedly displaceable body members, the first body member having a pair of opposed pulleys adjacent its rearward end and another pair adjacent its forward end, and further including an elongate track portion on its upper surface. A loop member having a linearly resilient segment is seated against the second body member's forward end, opposing lengths of the loop extending rearwardly around the rearward pulleys, and forwardly around the forward pulleys, a sliding dog being attached to the loop between the forward pulleys and being slidably engaged with the track portion A trigger for holding the sliding dog rearwardly when drawn from between the pulleys, and for suddenly releasing the dog, is provided. A velocity increasing mechanism replacing the sliding dog is also disclosed, the mechanism comprising a ferrule affixed to the loop between the forward pulleys. A length of resilient tube is bound in coaxial relation to the ferrule's rearward end, a cap having a downward-projecting spur being disposed at the rearward end of the tube, and a trigger being provided for holding the cap rearwardly by its spur for sudden release. One embodiment of the velocity increasing mechanism includes a seat interior to the cap for receiving a spear or an arrow. A pellet projecting embodiment of the velocity increasing mechanism includes a rod, the forward end of which is axially slidingly received in the ferrule, the rearward end of which is fixed to the interior of the cap, the rod being of sufficient length such that when the tube is axially elongated, the rod's forward end remains in the ferrule.

Claims15

Dependent claims

Apparatus for shooting a projectile, said apparatus comprising:

a. a first elongate body member having a forward end and a rearward end;
b. a rearward pair of pulleys mounted in opposed relation on said first body member adjacent its rearward end;
c. a forward pair of pulleys mounted in opposed relation on said first body member adjacent its forward end;
d. a second elongate body member having a forward end and a rearward end, said second body member being connectedly displaceable from said first body member;
and,
e. a substantially contiguous flexible loop member, at least a segment of which is linearly resilient, said loop being seated against said forward end of said second body member, opposing lengths thereof extending rearwardly and around said rearward pulleys of said first body member, then forwardly and around said forward pulleys to meet and close said loop, whereby a short segment on said loop may be drawn rearwardly from between said pulleys of said forward pulley pair creating a potential for accelerating a projectile in a forward direction, and whereby connected displacement of said first body member from said second body member adds tension to said loop and yields an increased potential to accelerate said projectile.

3 more elements

Dependencies are inferred from the claim text.

Mechanical shooting apparatus

Life of this patent

Mechanical shooting apparatus

Life of this patent

Abstract

Claims15