US7709A - Improved spring-grapple - Google Patents

Description

NITED STATES v ATENT Frictia O. WARNER ANP GHAS. S. GAYLORD, OF GAYLORDS BRIDGE, CONN.

IMPROVED SPRING-GRAPPLE.

Speciflcation forming part of Letters Patent No. 7,709, dated October 8, 1850.

To all whom 'it may concern.-

Be it known that we, ORRA WARNER and CHARLES S. GAYLORD, both of Gaylords Bridge, in Litchfield county and State of Connecticut, have invented a new and improved Inode of constructing an instrument called a grapple,77 to be used for the purpose ot' catching tish, animals, and for other purposes; and we do hereby declare that the following is a full, clear, and exact description ot' the construction and operation of the same, reference being had to the annexed drawings, making a part of this specifica-tion, in which- Figure l is a perspective view of the entire instrument shut together or unset, and Fig. 2 a front view of the same represented open or cet.

The nature of our invention consists of a metallic spring of more or less length and thickness, according to the size of the object to be seized, bent so as to resemble in its outlines a pair of sugar-tongs. Each end of the spring has an ear, in which a slot or mortise is cut open at the end. In each of these mortises is inserted a metallic hook, resembling in forni an eagles talon, and the hook is fastened therein by a pin or rivet passing through both the ear and hook, on which pin as an axis the hook is allowed to move freely. (See Figs. l and 2 of the drawings, wherein like letters refer to like parts in both figures.)

a a represent the springs; b b, the hooks; c c, the pins or axes of the hooks. rlhe inner or upper ends of the hooks are provided one with atenon and shoulder and the other with a mortise and shoulder, and are fastened together with a pin or rivet, which serves as an axis for both hooks. In one of the shoulders aforesaid is inserted a set-screw, which passes through the shoulder. '(See both figures.)

e e are the shoulders, d the set-screw, and g the axis. When the points of the hooks are forced apart far enough to bring the three axes above described nearly in a right line the setscrew in the shoulder of one hook touches the shoulder ofthe other, thus making a setjoint, and the instrument remains open or set ready for use. In the short bend ofthe spring isiuserted a swivel for the convenience of attaching a line, wire, or pole to thc instrument. (See both figures.) j", the swivel.

To use the above-described instrument it is, when fastened to a line, wire, or pole, opened and then lowered onto the object desired. As soon as the set joint touches the object the joint yields and the force ofthe spring brings the points of the hooks forcibly together. The set-screw causes the grapple to spring more or less easily, aecordin g as the joint is made more or less open thereby.

Having thus fully described our invention, we will now proceed to state whatwe claim as our invention, and desire to secure by Letters Patent; but we would iirst say that we are aware that spring hooks or talons and a set joint have heretofore been employed as a trap, for which device Letters Patent were granted to Thos. A'. Davies in 184.9; but his arrangement involves the use ot' a trigger to operate thejoint. Our arrangement simplifies the trap in other respects and does away with the use of a trigger.

What we claim, therefore, is

Not a set joint, but the arrangement ot' the tongs-shaped springs, talons, and set joint, constructed and acting as herein described.

ORRA WARNER. CHARLES S. GAYLORD.

Witnesses:

GEORGE W. MARSH, JOHN TAYLOR.

Images