US469673A

US469673A - Samuel v

Info

Publication number: US469673A
Authority: US
Priority date: 1890-11-04
Filing date: 1890-11-04
Publication date: 1892-03-01
Anticipated expiration: 1909-03-01

Description

No Model.)

S. V. BEGKWITH.

HAND FOR TIMEPIEOES.

No. 469,673. Patented Mar. 1, 1892.

WITNESSES S k m a); 60 36% 7 M06, ZW/ JL UNITED STATES PATENT OFFICE.-

SAMUEL V. BECKIVITH, OF VINSTED, CONNECTICUT, ASSIGNOR TO THE WVM. L. GILBERT CLOCK COMPANY, OF SAME PLACE.

HAND FOR TIME-PIECES.

SPECIFICATION forming part of Letters Patent No. 469,673, dated March 1, 1892.

Application filed November 4, 1890. $eria1N0. 370,267. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL V. BEoKwITH, of WVinsted, in the county of Litchfield and State of Connecticut, have invented certain 5 new and useful Improvements in Hands for Time-Pieces, of which the following is a full, clear, and exact description, whereby any one skilled in the art can make and use the same.

The object of my invention is to provide a To comparatively cheap, secure, and durable means for attaching hands of clocks and other like structures to the spindle; and to this end it consists in a hand, pointer, or like part having a spindle-socket and provided with into- I 5 gral spindle-grasping arms.

It further consists in details of the several parts making up the device as a Whole and in their combination, as more particularly hereinafter described, and pointed out in the claims.

Referring to the drawings, Figure 1 is a detail plan view of a blank for a hand of a clock or like time-piece. Fig. 2 is a detail view in side elevation of a spindle and in section of :5 the hand.

of the die and punclnillustrating the method of making the fastening-arms on the pointer.

In the accompanying drawings, the letter a indicates a clock-hand or a similar pointer or 50 index that is in use, secured to a spindle b,

so that the hand will conform to the movements (usually rotary) of the spindle.

Prior to my invention the hands of a clock, for use on which my invention is particularly adapted, have been attached by punching a square hole in one of the hands to enable it to fit upon the squared part of the spindle, and the other hand has been provided with a cylindrical socket-piece secured to the hand by clamping the end of the socket-piece in a socket in the hand. These devices are usually fastened by thrusting a pin through a hole in the spindle and holding the hands between the face of the time-piece and the pin.

5 In the practice of my invention a peculiar punch 0, having a pyramidal cutting-point c, is used. Immediately back of the cuttingpoint the shaping part c of the punch conforms in outline in cross-section to the shape Fig. 3 is a detail view in section it is desired to give the hole through the hand, and back of the shaping part is a shoulder 0 By means of this punch and a suitable die (I, having a socket d, the metal of the blank a is cut, punched, turned outward, and pressed to shape at one and the same operation, forming the integral grasping-arms (0. These arms extend substantially at right angles to the hand and are arranged about the opening in such manner as to form clamping means for holding the hand securely upon the spindle Z). The point of the punch c is formed with cutting-edges, so that the metal of the hand is cut through and the cuts divide that portion of the metal which filled the socket into integral parts.

By means of the tool substantially as described I am enabled to provide a cheap, strong, and serviceable hand for a time-piece or like article, having all the advantages of the old hands and possessing the advantage of strength, durability, and ready adaptation to its intended use.

The spindle-socket in the hand may be made of any desired shape, so as to conform either to a spindle having a polygonal outline in cross-section or one that is cylindrical in form, and in this regard it is immaterial Whether the spindle be solid or hollow; and the integral spindle-grasping arms may consist of a tubular projection or be divided into several parts without departing from my invention.

I claim as my invention 1. As an improved article of manufacture,

a hand or pointer for time-pieces, having a spindle-socket and provided with integral spring grasping means for attachment to a spindle, arranged about said socket and projecting outwardly from the pointer, all substantially as described.

2. In combination with a spindle, a hand 0 for time-pieces, having a spindle-socket and provided with spring grasping-arms adapted to grasp a spindle and integral with the hand, all substantially as described.

SAMUEL V. BEOKWITH.

Witnesses:

STEPHEN (3. WHEELER, .I'IUBERT P. WETMORE.