US340429A - Engraver s turn-table or holder - Google Patents

Description

(No Model.)

J. H. DIGKSON.

BNGRAVBRS TURN TABLE 0R HOLDER.

No. 340,429. Patented Apr. 20, 1886 UNTTED STATES PATENT Trice.

J' AMES II. DICKSON, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 340,429, dated April 20, 1886.

Application filed April ll, 1885. Serial No. 161,923. (No model.)

To all whom, it may concern.-

Beit known that I, .latins H. Bronson, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Engravers Turn-Tables, which improvement is fully set forth in the following specification and accompanying drawings, in which- Io Figure l represents a top or plan view of an engravers turntable embodying niy invenA tion, a portion of .-the same being broken away. Fig. il represents a vertical section thereof. Similar letters of reference indicate corresponding parts in the two figures.

My invention consists of an engravers turntable which may be set at various angles, and is adapted for holding different kinds of articles to be engraved, as will be hereinafter fully Set forth. y

Referring to the drawings, A represents a table on which are supported two blocks or slides, B, to the under side of which are se cured, by means of screws C, the ears D D, which latter maybe of dovetail or tapering form, it being noticed that said blocks or slides B are on opposite sides of the table.

F represents a right-andleft-th readed screw, 3o which is swiveled to the standard of the table and fitted to the ears D D, whereby bythe operation of said screw the blocks B may be moved simultaneously toward or from each other, as desired. A portion of the sides of each block B is right-lined, as at G, andthe remaining portion is scalloped and grooved, as at G, by which provision the blocks' are adapted for holding different articles or for different kinds of work, it being noticed that 40 the blocks may be rotated on the screws C, so as tobring the proper part around to the work. The upper faces of the blocks are also formed with a series of openings to receive pins H, which are shouldered, the same being adapted to be fitted in either of said openings, and owing to their shoulders to be employed for various kinds of work, it being seen that when the blocks or pins, or both, are adjusted they are caused to take firm hold of the article to be .engraved by clamping action due to the screw F, and when the work is accomplished the article may be readily released by properly rot-ating the screw F, in which ease the blocks recede and separate. A depression, H', is also formed on the face ofthe block, .or in each block, forming a seat or rest for holding rings, &c., to 'be engraved. The standard J of the table is freely tted in a socket, J', so that the table may rotate thereon, the said socket having at its lower end a flange, K, of inverted cup shape, or somewhat hemispherical, and this is fitted within a socket, L, of corresponding shape, forming a balland-socket joint, the socket being attached to the base of the table. Vithin said base is a clamping-bar, 6 g, M, which may be raised and lowered, and when raised is adapted to come in contact with a projection depending centrally from the ball or flange K. One end of said bar is rested on apiece, N, as afulcrum, and has fitted to its other end a screw, P, by which provision said bar may be raised and lowered. Then the bar is clamped against the projection of the ball or flange K, itforces said flange against the socket L, and thus retains the said fiange, and consequently the table A, in whatever position it may be placed, it being evident that owing to the ball-and-socket joint K L the table may be set at any desiredv angle for the purpose of the engraver, and when once thus set or adjusted it is retained in position by the clamp-bar M. When the said bar is lowered by the screw P, it relieves the ball K. and thus permits the angular adjustment of the table, as desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters the said blocks B having ears D, which are secured to the said blocks by means of screws, whereby the said blocks may be adjusted so as to present different portions of their rims to each other, substantiaily as aud for the purpose set forth.

3. An engravers turn-table composed of a rotary table with sliding blocks, a right-andleft-threadcd screw, a standard iu which said screw is journaled, a base, a ball-and-soeket joint connecting the standard with the base, and a clamping device, said parts being conibiucd and operating substantially as and for the purpose set forth.

4. An eugravcrs turn-table composed of a rotary table with blocks having both a lateral and a rotary adjustment and provided with pins adapted to be inserted in recesses in said blocks, a right-and-Ieft-threaded screw, a standard for said table having a flange at the 2o lower end, a socket secured to the base embracing said ange, aud a. clamping device bearing on said flange, substantially as and for the purpose set forth.

5. The table A, having'a standard, J, in 25 combination with the flange K, socket L, secured to the base of the table, leverba-r m, and screw P, substantially as described.

JAMES H. DICKSON. Vituesscs:

JOHN A. WIEDERsHurM,

A. P. GRANT.

Images