US142010A - Improvement in clamps - Google Patents

Description

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Clamps. N0' 142,010. PatentedAugustlQ,873.

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Clamps.

NO. 142,010. l PatentedAugust19,1873.

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LAWRENCE FEELY, 0F ROCHESTER, NEV YORK.

IMPRQVEMENT IN CLAMPS.

Specification forming part of ALetters Patent No. 142,910, dated August 19, 1873 application filed To all whom' it may concern: y Beit known that I, LAWRENCE FEELY, of the city of Rochester, in the county of Monroe and State of New York, have invented a certain new and useful Improvement in Clamps for Putting Together Chair-Frames; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same.

My invention consists of a clamp for putting together the backs of chairs, constructed and arranged as hereinafter described.

In the drawings, Figure lis a plan; Fig. 2, an elevation; Figs. 3 `to 7, inclusive, detail views.

A represents a frame, which may be of'any desired form. D is a stationary head-block, and C is a follower. These parts lie crosswise of the main frame and on top. The follower is propelled by two screws, E E, attached thereto, and the screws receive motion by gear-wheels 1 2, which form'nuts, said gear-wheels meshing together, and one of them being driven by a gear, 3, to which is attached a balance-wheel, 4, and crank a. The ends of the follower have bearings b b, which slide in ways formed by the two longitudinal beams c c, on each side of the frame. G is an adjustablerest, located between the head-block and follower. It has a vertical stem, d, which moves up and down in a block, f, and is held in any position by a set-screw, g. The block f has a dovetailed bearing, h, Fig. 2, which slides horizontally in the crossbar t', which in turn slides longitudinally upon the plate K. A set-screw, j, rests in a slot, c, of the plate, and passes into the cross-bar c', by means of which said cross-bar may be sei cured in any position. A set-screw, k, also secures the block f to the cross-bar. By this means it will, be seen that the rest G may be adjusted vertically, longitudinally, and laterally, and therefore fixed in any position. Saddles H. H, of angular form in cross-section, are secured on the inner edges of the headblock and follower, as shown in Fig. 2. I is a gage-bar on one side vof the machine, extending longitudinally of the same. It has a flange or ledge, l, projecting inwardly, and itis made adjustable vertically by set screws m m and slots n, as shown in Fig. 6. The apparatus, as lfar as above described, is adapted June 20, 1873.

to putting together the sides of chairs. The chair-back is placed crosswise of the clamp, with its sides between the angular saddles HH, andits ends or feet against the gagebar I and beneath the flange l, which is adjusted to its position for the purpose. The cross piece or bar of the chair-back also rests upon the support G, which is adjusted to its position for the purpose. The rounds and cross-piece of the chair being in place opposite the mortises, the follower is driven up, which presses the chair to place and produces the framing.

For putting together the top of the chair, the construction and operation are as follows: J is a stationary bed at the end of the clamp Opposite the follower. It has a removable saddle, H1, the inner face of which is fashioned to the contour of the chair-top. This bed is made stiff and firm by au angular brace, o, 0r'

in any other manner. The rest G and its connecting parts are removed from between the head-block and the follower, and the latter is provided with a vertical saddle, H2, Fig. 4. A cross-bar, L, is` located between the follower and head-block, and this is connected by handscrews p p with a clamp-bar, M, which slides between the beams o c. By this means the two bars may be adjusted and clamped in any position. A clamp, N, is located over the cross-bar L, and connected with the top of the follower by an arm, O, which extends back between lugs g g of the follower. The arm is provided with a longitudinal slot, r, through which passes a pin or pivot, s. This allows the position of the clamp to be changed without moving the follower, and also allows the follower to press up without disturbing the clamp. The clamp is pressed down over the top of the cross-bar by a hand-screw, t.

The chair-back with its sides already framed,

as before described, is placed longitudinally in the clamp, with its feet resting against the saddle H2, and the top or head piece of the chair against the saddle H1. The legs of the chair pass between the clamp N and cross-bar L, and are clamped in place. Pressure is then applied on the follower, which forces the top to its place.

Having thus described my invention, what I claiin as new, and desire to secure by Letters Iatent, is

3. The combination of the clamp N, um O, cross-bar L, clamp-bar M, and hemd-Screws p 17 t, operating as described. v

In Witness whereof I have hereunto signed my name in the presence of two Subscribing Witnesses.

LAWRENCE FEELY. Witnesses R. F. OsGooD, HENRY M. THOMAS.

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