US240449A

US240449A - nauen

Info

Publication number: US240449A
Authority: US
Publication date: 1881-04-19
Anticipated expiration: 1898-04-19

Description

2 Sheets-Sheet 1.

H. '0. NAUEN. Sewing Machine.

(No Model.)

Patented April 19,1881,

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(No Model.) 2 sneets snet 2.

4 H. 0. NAUEN.

Sewing Machine.

NO. 240,449. Patented April 19,1881.

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OF NEW YORK, N. Y.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 240,449, dated April 19, 1881.

Application filed September 22, 1880.

T 0 all whom it may concern Be it known that I, HERMANN O. NAUEN, a citizen of the German Empire, residing at New York, in the county and State of New York, have invented new and useful Improvements in Sewing-Machines, of which the following is a specification.

This invention relates to sewing-machines for manufacturing and other general purposes; and it consists in certain novel combinations of 'parts, hereinafter fully described, and pointed out in the claims.

This invention is illustrated in the accom panying drawings, in which Figure 1 represents a plan or top View with the cloth-plate removed to expose the parts beneath it. Fig. 2 is avertical cross-section on the linear m, Fig. 1. Fig. 3 is a similar section on the line 3 y, Fig. 1.

Similar letters indicate corresponding parts.

The letter A designates the machine-frame, and B a vibrating arm carrying an eye-pointed needle, 0, which, together with a looping-hook, d, constitutes the stitch-forming mechanism. The needle 0 is preferably curved concentrically to the axis of the vibrating arm B. The looping-hook d is fixed to a driving-shaft, E, on which is also fixed an eccentric for operating the feed-bar Fin the usual manner, to this feedbar being applied the feed surface or dog 9.

The vibrating arm B has its fulcrum on a rock-shaft, H, the arm being preferably formed in one piece therewith, and this shaft has its bearings on pivots I I, which are fixtures of a laterally-projecting arm, A, on the machineframe, while the shaft is connected with an eccentric fixed to the driving-shaft E by arod, J, to receive the required motion.

Beneath the rock-shaft His situated a shield, K, to keep the cloth out of contact therewith as it leaves the stitch-forming mechanism, and also to catch any drippingsof oil, the rockshaft being arranged with its fulcrum situated substantially in a horizontal plane with the cloth-plate of the machine, (marked L,) and the cloth being allowed to pass under it or its bearings by a novel arrangement of the feed-bar and cloth-plate, hereinafter described.

In juxtaposition with the vibrating arm B (No model.)

is located a second arm, N, which is hung on pivots o 0, and carries the presser-foot P at its free end, the pivots 0 0 applied to a bracket, Q, secured to the machine-frame and being adjustable. This presser-arm N is subjected to the action of a spring, It, having a tendency to force and retain the same in a lower position, and a cam, S, is used for lifting and retaining the arm in an upper position,.both the spring and cam being applied to a bracket, T, secured to the machine-frame.

The usual location of the feed-bar F is in the rear of the stitch-formin g mechanism, whereas in my machine the feed-bar is arranged at a point forward of the stitch-forming mechanism-namely, so that it extends in an opposite direction to the needle-arm B or presser-arm N from such mechanismwhile the cloth-plate L terminates at a point forward of the later ally-projecting arm A, in which is mounted the rock-shaft H, forming the fulcrum of the vibrating needle-arm B. In this manner a free space is left between the cloth-plate L and the fulcrum of the vibrating arm B, as well as beneath such fulcrum, for the escape of the cloth.

For the purpose of lubricating the drivingshaft the machine-frame is provided with oilwells U,'and with each of these wells I combine a pad, V, of felt or other absorbent material.

I do not broadly claim a vibrating needlearm arranged in a plane parallel to the motion of the feed dog or surface; neither do I broadly claim a presser-arm hinged at its rear end and lifted by a cam and pressed to the feed-dog by a spring; but

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

1. The shaft E, provided with a loopinghook, d, in combination with a rod, J, connected with an eccentric fixed to the driving shaft, the rock-shaft H, connected with the rod J, and the vibrating needle-arm B, arranged in a plane parallel to the motion of the feed 9 feed-surface, of the shield K, attached to the frame A and arranged beneath the rock-shaft,

' in rear of the feed mechanism, substantially as arranged beneath the presser-arm to lift the same, the spring and cam being arranged in a bracket, I, all substantially as and for the pur- 15 pose described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing Witnesses.

HERMANN O. NAUEN. [11.5.]

'Witncsses WV. HAUFF,

OHAs. WAHLEns.