US697339A - Fur and glove sewing machine. - Google Patents

Description

Patented' Apr. 8, 1902.

m. HASHFIELD, EUR AND GLOVE saw-ms MACHINE.

(Application filed Aug. 81, 1901.)

2 Sheets-Sheet I.

(No Model.)

'No. 697,339. Patented Apr. 8, I902.

In. HASHFIELD.

FUR AND GLOVESEWING MACHINE.

(Application filed Aug. 31, 1901. (No Model.) 2 Sheets-Sheet 2;

TNE "cams PEYERS A0. PxoToumm. WASHINGTON. o. c.

UNITED STATES PATENT OFFICE.

MORRIS HASI-IF IELD, OF LONDON, ENGLAND.

FUR AND GLOVE SEWING MACHINE.

SPECIFTCATION forming part of Letters Patent No. 697,339, dated April 8, 1902.

Application'filecl August 31,1901. Serial No. 73,927. (No model.)

T0 at whom it may concern:

Be it known that I, MORRIS HASHFIELD, en gineer, a subject of the Czar of Russia, residing at 54: Redcross street, London, England,

have invented new and useful Improvements in Fur and Glove Sewing Machines, of which the following is a specification.

My invention relates to fur and glove sewing machines; and the invention has for its obj ect to simplify the construction and increase the durability of the machine, to render the machine more noiseless in operation, and enable it to be run at a higher speed than other machines of the kind now in use.

The invention relates to the mechanism for imparting to the looper the various move-' ments necessary to the formation of a stitchnamely, longitudinal reciprocating movement, vibrating movement in the longitudinal plane of the looper-stem, and rocking movement about the longitudinal axis thereof.

Reference is to be had to the accompanying drawings, forming part of this specification, wherein- Figure l is a side elevation of the machine, the casing being in section. Fig. 2 is a crosssection. Fig. 3 is a plan with the top of the casing removed. Figs. 4, 5, and 6 are detail views, on a larger scale, of the parts to which the invention relates.

The same letters of reference indicate the same parts in all the figures.

CL is the looper-hook, carried by a stem 19.

c is theneedle; d, the needle-carrying'bar, reciprocated by a yoke 6, attached to it, embracing a cam f on the main shaft g, as usual.

h h are the work-feed disks, rotated in the usual Way.

Heretofore in such machines the three movements above mentioned have been imparted to the looper-stem b by three distinct instrumentalities; but according to my invention I impart both the longitudinal-reciprocating and the longitudinal-vibrating movements to the looper-bar carrier by one and the same means-to wit, the radius-arm or pair of radius-arms hereinafter mentioned. For this purpose the stem 19 of the looper is fitted to slide in a rear guide-bearing i, mounted to vibrate on a transverse axis j, and the stem 1) also passes through a tubular front bearing in, confined between a collar Z, fixed by a set-screw upon the stem 12 and a shoulder m on said stem. The bearing is carried by a transverse bearing n, pivoted freely upon a pin 0, fixed in a pair of radius-armspp, carried by a rook-shaft q, journaled on centers r and provided with an arm 3, coupled by a rod 15 to the strap u of an eccentric o, fast on the main shaft g. By the movement of the rock-shaftg the arms are caused to vibrate in an arc Z Z, whereby both longitudinal sliding movement in its bearing *6 and vibrating movement about the axis j of said .bearing are imparted to the looper-stem Z). The rocking movement of the looper-hook a about the longitudinal axis of its stem is'imparted from a cam-disk w, revolving with the main shaft g and having a groove to, in which is engaged a stud and roller m on the one arm a," of a bell-crank lever, fulcrumed at a fixed point as, and whose other arm 00 is coupled by a link y with a laterally-projecting arm z on the collar Z, fixed, as above mentioned, on the stem 1) of the looper-hook, the joints y. y of the link y being spherical or universal to permit of the various relative movements of the linky and of the arms which it connects, the rocking movement of the looper-stem about its own longitudinal axis being so coordinated with the longitudinal sliding and vibrating movements of the looper-stem as to give the looper-hook the movements necessary for the proper formation of the stitch.

I claim- 1. In a fur and glove sewing machine the combination with the looper-hook stem, of a bearing or support for the rear end thereof in which the looper-stem is fitted to slide, a transverse horizontal axis on which said bearing is mounted to vibrate, the said bearing being adapted topermit both longitudinal reciprocating movement of the said stem and vibrating movement thereof about said axis, a hearing or support for the front end of the stem confined upon said stem so as to be incapable of longitudinal motion relatively thereto, and means for operating the looperstem, comprising a radius arm or arms pivotally connected to said front bearing and adapted to receive angular motion about an axis transverse to the said stem, so asto thereby impart to said stem both longitudinal sliding motion and also vibrating motion in its vertical plane about the transverse axis at its rear end, and mechanism for imparting the said movement to the radius arm or arms, as specified.

2. In a fur and glove sewing machine, the combination with the looper-hook stem of a bearing or support for the rear end thereof, adapted to permit both longitudinal reciproeating movement of the said stem and vibrating movement thereof about a transverse horizontal axis situated at the said bearing, a front bearing or support for said stem so connected to said stem as to be incapable of longitudinal movement relatively thereto, and means for operating the looper-stem comprising a radius arm or arms in pivotal connection with said front bearing and adapted to receive angular motion about a transverse axis, an cecentric on the main shaft, and means intermediate thereof and of said radius arm or arms whereby the rotation of the eccentric is caused to impart vibrating movement in an arc to the said radius arm or arms, and thereby to impart combined longitudinal sliding and vibrating motion to the looper-stem, substantially as specified.

3. In a fur and glove sewing machine, the combination with the looper-hook stem so mounted as to be adapted to receive longitudinal reciprocating motion, vibrating motion about a transverse horizontal axis at its rear end, and rocking motion about its own longitudinal axis, of means for imparting the said reciprocating and vibrating motion to the looper-stem, and mechanism for imparting the rocking motion to the said stem about its own longitudinal axis, the said mechanism comprising a cam on the main shaft, a bellcrank lever having one arm engaged in the cam-groove and the other arm coupled to a laterally-projecting arm fast on the looperhook stem by an intermediate link and universal joints to permit of the relative movements of the parts, as described.

4. In a fur and glove sewing machine, the combination with the looper-hook stem, and a rear guide -bearing in which the looperstem is fitted to slide, the said bearingbeing mounted to vibrate on a transverse axis, ofa front bearing through which the looper-stem passes, the front bearing being held against longitudinal movement on the stem, a transverse bearing carrying the front bearing, and means for operating the looper-stem, comprising a shaft mounted to rock, radius-arms carried by the rock-shaft and to which the said transverse bearing is pivotally connected, an eccentric on the main shaft of the machine, and a rod connecting the eccentricstrap with an arm on the rock-shaft, whereby the rotation of the eccentric will move the radius-arms to impart to the looper-stem a longitudinal sliding movement and a vibrating movement in its longitudinal vertical plane, substantially as specified.

5. In a fur and glove sewing machine, the combination with the main shaft of the machine, the looper-hook stem, the bearings for the same, and means for imparting a longitudinal reciprocating motion and vibrating motion in a vertical plane to said looper-stem from the main shaft, of means for imparting a rocking motion to the looper-stem about its own longitudinal axis, the said means comprising a cam-disk revolving with the main shaft and provided with a groove, a bellcrank lever fulcrumed on a fixed point and having one arm provided with a roller engaging the groove of the cam, a collar fixed on the stem of the looper-hook and havinga laterally-projecting arm, and a link connected by universal joints with the said laterallyprojeeting arm and the other arm of the bellerank lever, substantially as described.

MORRIS HASHFIELD. Witnesses:

CAMPBELL G. CLARK, THOMAS W. KENNARD.

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