US124108A - Improvement in rigging-screws - Google Patents

Description

Patent-ed Feb. 27, 1872- No.124J08.

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Pivrmv'rI OFFICE.

JOHN R. ANDERSON, OF NEW YORK, N. Y.

IMPROVEMENT IN RlGGlNG-SCREWS.

Specification forming part of Letters,Patent No. 124,108, dated February 27, 1872.

To all whom it may concern:

Be it known that I, J onN R. ANDERSON, of the city, county, and State of New York, have invented a new land useful Improvement in Rigging-Screws; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanyng drawing formin g a part of this speciiication.

The object of this invention is to enable one rigging-screw to he used for different-sized ri gging. To this end, it consists in a series of pairs of removable clamps ot'various sizes which are secured within the jaws of the rigging screw in such manner that they may be easily changed and the whole operated in the same manner as an ordinary rigging-screw.

In the accompanying drawing, Figure l is a face view of a rigging-screw having a pair of my clamps applied, showing` it on the scale of about three inches to the foot. Fig. 2 is a section ot' a portion ofthe same. Fig. 3 is an edge of a large pair of clamps, and Fig. 4 is a back view ot' one ofthe same.

Similar letters of reference indicate corresponding parts in all the figures.

A and B are the two jaws of the riggingscrew, attached, by two rods, C C, to the piece l), through which the operatin g screw E screws in the usual manner. The inner jaw B slides upon the rods G C', being provided near each end, for this purpose, with a hole, af, through which one of the rods C O passes. The outer jaw A is hinged at one end to the rod C by a pin, b, and has formed near its other end a hole, c, through which extends the rod O, to which it is secured by a pin, d, passing through its projecting' end. G G are the clamps fitted to the jaws A B. The exterior or outer sides of these clamps are made to conform to the inner sides of the jaws A and B, and the inner or adjacent sides of the clamps are made of dit ferent sizes and shapes to suit diii'erent-sized rigging, those, G G', shown in Fig. 3 being for larger-sized rigging than those, G G, in Fig. l. The clamps arenotched at one end to iit the rod O, and have formed near the other holes e for the reception of the other rod C. The screw E has alever, F, ext-ending through its head, by means of which it is turned, and itis grooved near its other end for the reception of two pins, f j', that extend through the jaw B into the groove, and thereby secure the screw to the said jaw, so as to be capable of turning without it. Y

The rigging-screw is used to hold rigging after having been set up while it is being moused or parceled. The jaws ofthe riggingscrew, without any interposed clamps, are used to hold the large-sized rigging, and to hold smaller sizes a pair of clamps is secured between the jaws. This is done by iirst removing the pin d and swinging the jaw A back; the clamps are then threaded on the rod C and their notched ends fitted to the rod O 5 the jaw A is then swung up in place and the pin d in serted through the projecting end otthe rod C, and the whole is thereby secured in place.

The operation is the same as that of an ordinary rigging-screw, the rigging being simply inserted between the jaws or clamps and the screw turned to tightly clamp and hold it.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination of the removable clamps G G with the jaws A and B and the rods O O, substantially as and for the purpose herein set forth.

J OH N R. ANDERSON.

Witnesses:

J. W. CooMBs, B. E. RABEAU.

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