US125940A

US125940A - Improvement in machines used in the manufacture of chains

Info

Publication number: US125940A
Authority: US
Publication date: 1872-04-23
Anticipated expiration: 1889-04-23

Description

I WILL IAM'QED GE Improvement in Machines used in the Manufacture of Chains.

PtntedvAprH'23J8 72.

No. 125,940. (y

WILLIAM 0. EDGE, OF NEWARK, NEW JERSEY.

IMPROVEMENT IN MACHINES USED IN THE MANUFACTURE OF CHAINS.

Specification forming part of Letters Patent No. 125,940, dated April 23, 1872.

Specification describing a Machine tobe used in the Manufacture of Gold or. other Metallic Chains, invented by WM. 0. EDGE, of Newark, in the county of Essex and State of New Jersey.

The invention will first be described in connection with all that is necessary to a full understandin g thereof, and then be clearly pointed out in the claim.

Figure 1 is a perspective view of my machine; Fig. 2, a vertical transverse section; Fig. 3, a vertical longitudinal section; and Fig. 4, a plan view of the bed-plate.

A represents the bed-plate, and B a stock movable in guide-holder d, and provided on the lower end with two conical shaping and bending tools e e. A treadle, D, is connected by suitable mechanism with stock B for the purpose of enabling it to be operated by the foot at the proper times. 0 G are jaws provided with springs g g, and sliding in a dovetailed groove of the guide-platef. The guideplate andbed-plate are aperturedinlineimmedia-tely under the point where the middle of link will come. Across this guide-plate and jaws is formed a channel, N, and in this channel is placed a guage-stud, n. h represents an oblong link which is made in any of the wellknown ways.

The mode of operation is as follows: The oblong link being pushed up in channel N until it is stopped by guage-stud n, the operator actuates the treadle with his foot, and brings down the shaping-tools c e, which enlarge and form the required size and shape of end-loop. These tools are then allowed to rise. To the middle of the first link that is inserted, is attached a wire or cord, by which the said link is drawn down between the yielding clampjaws G G, and thereby doubled or bent in the middle, so as to leave the end loops above the channel-wayN. A second link is now pushed up channel N, through the loops of the bent link, and against the guage it. Again, the shaping tools 0 e are forced down by the treadle mechanism, made to spread the end loops, and then withdraw. The first link is now pulled down lower than before, so as to leave the second link with its loops above channel-way..

This proceeding is continued until a chain of the desired length has been formed. After the first two or three links are made, the opera. tor takes 'hold of a protruding link and draws down upon it, at the proper time, to make the double.

Hitherto these chains have been made by hand in an imperfect and more expensive manner. By means of the guage and centering holeundermiddle of link, the latter are doubled with great exactness and uniformity, so that one of my machine-made chains looks entirely unlike the hand-made ones, and is readily distinguished from them. These chains are now employed to form fringes, while those heretofore made by hand are not adapted to this use.

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

The vertically-apertured guide-plate f, and spring-pressed jaws G G, provided with channel N and guage n, and arranged on a vertically-apertured bed-plate A, in combination with the shaping-tools 66, all being constructed and arranged as and for the purpose described.

- WM. 0. EDGE. 'WVitnesses:

GEO. W. MABEE. T. B. MOSHER.