US312227A

US312227A - Machine foe ruling dials

Info

Publication number: US312227A
Authority: US
Publication date: 1885-02-10
Anticipated expiration: 1902-02-10

Description

(No Model.)

B. L. TAFT.

MACHINE POR-RULING DIALS.

Patented Feb. 10, 1885.

WATTORNEYS WITNESSES Unitas draws Parana Oriana...

RYLAND LEE TAFT, OF SPRINGFIELD, ILLINOIS, ASSIGNOR TO THE ILLINOIS WVATCH COMPANY,

OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No 312,227, dated February 10, 1885.

Application filed December 26, I833. (No model.)

To all whom it may concern:

Be it known that I, RYLAND L. Terr, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois,- have invented certain new and useful Improvements in Machines for Billing Dials; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art IO to which it appertains to make and use the same, reference being had to the accompany ing drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a representation of one of the templets used in this invention, and is a top view. Fig. 2 is a view of the same with the figures marked on the dial. Fig. 8 is a vertical section through block, dial, and

templet. Fig. at is a top view of the second templet. Figs. 5 and 6 show different views of the marker.

This invention has relation to machines for ruling dials; and the object of the invention is to simplify-the process of ruling and to secure accuracy therein.

In the accompanying drawings, the letter A designates a plate or templet having two circular perforations, a and b, which corre- 0 spond in position to the center and fourth or minute pinions, respectively, of the watch or time-piece on which the dial is to be used. The plate is also provided with a circular series of oblong angular apertures, 0 c a, radially arranged at the proper distance from the central perforation and corresponding in position to the hour-marks required on the dial. The long straight sides (Z of these apertures are designed to serve as guides for the cutter 0' or marker wherewith the letters denoting the hours are cut or marked on the dial. The dial to be marked is indicated at f.

E represents abase-blocl ,which is provided with the pump-centers or spring-posts g and h, which are fitted, respectively, into a central recess, k, and a recess, Z, made at the proper distance from the center of the block to correspond in position to the center of the fourth or minute pinion. These posts therefore project upward through the perforations a and b, respectively. The upper ends of the spring-posts are made smaller than the lower portions at bodies of the posts, as indicated at jj. These small extensionsjj are connected to the bodies of the posts by tapering or conical shoulders m, which are made in this form to provide for the variation in the diameter of the central perforation, a, and the fourth hole, I), arising from enameling. The pumpcenters are held up against the dial and in '60 the templet by the springs, s s in their respective recesses in the base-block. The dial having been placed on the block, the small ends of the pump-centers pass through the central and fourth holes until stopped by the taper shoulders on, which serve to locate the dial, the small ends j of the post projecting above and serving to receive the templet. The dial and templet are then pressed down to the block and held by suitable clamps. With a cutter, Z, of which Fig. 6 illustrates an enlarged view, having five equal points and four equal interspaces, the letters indicating the hours on the dial are to be marked through the angular apertures or slot-s c c. This cutter Z is intended to rule a superfluous number of marks on the dials, and with another instrument the opcrator removes the marks not wanted, leaving the finisher to rule the fine oblique lines and second-marks. Then the templet A is removed and in its place is put a templet, V, which is of similar form, having holes 8 and t, corresponding in position to the central and fourth holes, a and b, of the templet A, and having also angular apertures 11 1;, cut in such a manner as to have a circular seriesof radial bars, a a, in proper position relative to the fourth hole It to cover and protect the lines to be left for the hour-marks, the other marks being removed by an instrument, as before described. VVith a cutter or scraper of similar general form to the cutter Z, but without teeth or points, the surplus paint is cleaned off, using the sides ofthe bars a as guides.

What I claim, and desire to secure by Letters Patent, is-

1. A templet having a central perforation,

a, and fourth hole, I), and a circular series of radialangular apertures, c 0, adapted to correspond in position to the hour-marks, and to serve as guides for the cutter in ruling the marks, substantially as specified.

2. A templet having angular apertures 12, arranged in circular series around the center, and separated by radial bars n, adapted to cover and protect the lines left for the hours in cleaning off the surplus paint, substantially as specified.

3. The combination, with a base-block having the postsg and 72, of a templet, A, having a eircularseries of apertures, servi ug as guides in ruling the hour-marks, and a templet, V, having a circular series of apertures, separated by radial bars, adapted to cover the hounmarks when ruled, in cleaning ofi', substantially as specified.

In testimony whereof I aflix my signature in 20 presence of two witnesses.

RYLAND LEE TAF'I.

\Vituesses:

J AMES CHALMERS, GEORGE A. BATES.