US247951A - Wheel-cutting attachment to watch-makers lathes - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

- .H. SARTORIUS. WHEEL CUTTING ATTACHMENT T0 WATGHMAKER 'S LATHES. N0.-247,951. v V Patented Oct. 4,1881;

ljvvrgm oze (No Model.) 2 Sheets-Sheet 2;

, H. SARTORIUS. WHEEL CUTTING ATTACHMENTv T0 WATGHMAKERS LATHES.

Patented Oct-4,1881.

No. 247,951. v

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UNITED STATES PATENT Grates.

HENRY SARTORIUS, OF CHICAGO, ILLINOIs.

WHEEL-CUTTING ATTACHMENT TO WATCH-MAKERS LATHES.

SPECIFICATION forming part of Letters Patent N0. 247,951, dated October 4, 1881. Application filed March 16, 1881: (N0 model.)

To all whom it may concern Be it known that I, HENRY SARTORIUS, of (Jhicago, in the county of Cook and State of Illinois, have invented a certain new and useful Wheel-Cutting Attachment for Watch-Mak ers Lathes, of which the Following is a specification.

The object I have in view is to produce a simple and eflicient attachmentfor watch-makers lathes by which the teeth of the wheels of watches as they come from the manufacturer can be cut previous to shapingthem or by the same operation, and the expense of the extra machine heretofore required for this purpose by every watch-maker can be saved.

My invention consists in the peculiar devices employed by me to accomplish the above object, asfully hereinafter explained, and poiu ted out by the claims.

In the accompanying drawings, forming a part hereof, Figure 1 is a top view of a portion of a watch-makers lathe with my attachment applied thereto; Fig.2, a vertical section of the same on line 2 2; Fig. 3, a side elevation of the attachment arranged for cutting teeth; Fig; 4, an end view of the same, and Fig. 5 a top view of the same.

H is the base-block of the attachment having the longitudinal T-groove h on its lower side, which receives the head of a'clampingbolt extending down through a slot in the bed of the lathe and having a nut, r, on its lower end. The base-block H is provided on its top with a longitudinal dovetail groove, 70, in which slides the correspondingly-formed foot k of the standard K. This standard is adjusted back and forth on the base-block H by means of a screw, L, which is held by a lug, Z, rising from the outer end of the'base-block, and engages with a screw-threaded hole in the foot of the standard. The screw L is turned by a milled head, 1. The foot of the standard K has a vertical hole or socket in its upper side, in which is setapost. This post is nicely fitted to the hole so that it has no lateral play therein, but it can be easily removed when it is dey sired to substitute a post with a head of different size or length. A sleeve, N, surrounds the post, fitting the same closely, and restsupon the foot is of the standard. The upper end,

it, of thestandard K extends forward over this sleeveN, andhas a vertical hole made through it in line with the hole m, for receiving the cenfinger is used to bring the center of the attachment. exactly opposite the edge of the cutter, and is then thrown up out of the way. The watch-wheel Q, which is to have its teeth out, is placed on the upper end of the sleeve N, and is centered and held by the staff 0, such sleeve being also held down by said staff. The baseblock H is then adjusted with its center opposite the cutter, and is placed at the desired angle and clamped by a bolt passing up through the bed of the lathe or otherwise. The standard K is then advanced by the screw L until one slot of .the watch-wheelis pro-perl y engaged with the cutter-head X. The standard K is retracted by turning back thescrew L, and a new wheel is secured in position on the sleeveN. The wheel Q is secured to the sleeve N, so as to turn therewith, by two small screws, 19, whose heads clamp the spokes of the wheel. Instead of securing the wheel in this manner to the sleeve N, it can be held bya single central screw turning into the top of the sleeve N, the head of which screw will be provided with an indentation, to receive the point of the staff 0.

A vertical vframe, S, having arms g, which embrace the upper end of the standard K, and arms r, embracing the foot of the standard, is pivoted to such standard by a pin, 8, and hangs down on the inner side of the same. The arms r of the frame S carry a horizontal worm, T,en-

gaging with the wheel R, and having on each end a notched wheel, U. Two springs, V, carri ed by a plate, t, secured by a screw to the standard K, engage withthe wheelsUaud hold them at any point of adjustment. The arms q and r of the frame S hold it-steady and prevent lateral motion.

The frame S is provided with a screw, a, setting against theinner side of the standard K, which screw throws the frame S outwardly and takes up all lost motion in the working of the worm teeth out square or it can be formed to round the teeth at the same time.

What I claim as my invention is 1. In an attachment for watch-makers lathes for the purpose set forth, the combination, with the adjustable standard K, of the sleeve N, having worm-wheel R and the frame S, carrying worml and pivoted to such standard, sub- 15 stantially as described and shown.

2. In an attachmentfor watchmakers lathes, for the purpose set forth, the combination, with the adjustable standard K, the sleeve N, and

worm-wheel R, of the frame S, carrying worm 2o '1, and having pivoting and guiding arms q 'r, and the set-screw u, substantially as described and shown.

HENRY SARTORIUS.

Witnesses:

F. W. KASEHAGEN, OLIVER W. MARBLE.

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