US295589A - Cabinet-maker s clamp - Google Patents

Description

(No Model.)

W. E SHELDON, Jr. H GAiBINET MA KER's GLAMP. No. 295,589. Patented Mar. 25, 1884.

Fig.5- Fig.4.- if

.fo aZZ whom it may concern.-

Unitas STATES PAT NT rnic WILLIAM E. SHELDON, JR, 0F MEDFORD, MASSACHUSETTS.

CABINET-'MAKERS CLAMP.

SPECIFICATION forming part of Letters Patent No. 295,589, dated March 25, 1884. Application filed August 2,-1883. (No model.)

Be it known that 1, WILLIAM E. SHELDON, J r., of Medford, in the county of Middlesex and State of Massachusetts, have invented new andnseful Improvements in Cabinet-Makers Clamps, of which the following is a specification.

This clamp is intended as an improvement over that now generallyin use in cabinet-makers shops for holding tightly together glued pieces, 850. I

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is a view in perspective of my improved clamp. Fig. 2 is a longitudinal vertical section of the same. Figs. 3 and at are cross vertical sections on lines as and e respectively,

Fig. 1.

A represents the bar, provided, as usual, with the transverse grooves a. V

B is the head-block, provided, as usual, with the screw O. To this head-block are secured side plates, D, provided with slides (l, fitting vertically into the slots 0 in the frame E. Thisframe is fitted onto the bar A by means of the shoes f, and secured to it by the rivet 9. By means of this construction the head-block may 7 be readily adjusted vertically the length of the slots 6 less the length of the slides d. The

crossbar G prevents the head-block from slipping out in case the slots extend to the upper end of the frame, and strengthens the latter. In order to provide snfficient friction to hold the head-block in any desired position, springs H are placed between the plates D and frame E, secured to the former. .(See Fig. 4.)

I is the tail-block, provided-with the usual swinging bar or catch, J, adapted to hold the tail-block in any desired position against the pressure of the screw by catching in one of 0 I the grooves a. In order to hold the lower or horizontal portion of the bar J up against the lower side of the bar A, so that it will be sure to catch in a groove, a, I provide the spring K, of the shape shown, extending from beneath the bar A upward on each side, coiling around the pin L, and bending downward and forward at K, and being secured at its ends to opposite sides of the swinging bar J, below its point of connection with the tail-block, so

WILLIAM E. SHELDON, JR.

\Vitnesses:

HENRY W. WILLIAMS, I Josnrrr IsHBAUeH.

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