US329865A - Machine for trimming fabrics - Google Patents

Description

(No Model.)

D. SWEENEY & G. REHEUSS.

MACHINE FOR TRIMMING FABRICS. No. 329,865. Patented Nov. 3, 1885.

INVENTORS N. PETERS, Plume-lithograph", Whhinglon, D. C.

m m m w m J h i I /V\ i. Q Z W m m m i--- ilairen Srarns DENNIS SW'EENEY, OF AMSTERDAM,

ATENT tries NEW YORK, AND GEORGE REHEUSS,

OF PHILADELPHIA, ASSIGNORS TO THE DEl/VEES EABRIC TRIMMER COM-- PANY, (LIMITEQ) OF PHILADELPHIA, PENNSYLVANIA.

hilACl-HNE FOR TRIMMING FABRICS.

SPECIFELATZON forming part of Letters Patent No. 329,865, dated November 3, 1885.

Application filed August 8, 1884. Serial No. 140,019. (No model.)

To aZZ whom it may concern:

Be it known that we, DENNIS SWEENEY, a citizen of the United States, residing at Am sterdam, Montgomery county, New York, and

Y GEORGE Rnnnoss, a citizen of the United States, residing at Philadelphia, in the State of lennsylvania, have invented certain new and useful Improvements in Machines for Trimming Fabrics; and we do hereby declare the following to be a full, clear, and exact de scription of the invention, reference being had to the accompanying drawings,which form part of this specification, in which Figure 1 is a vertical longitudinal section, and Fig. 2 a perspective, partly broken away, of our invention.

Our invention has for its object to provide a machine for trim miug fabrics, and particularl y for trimming hems or welts of undershirts and similar knitted articles or hosiery.

Our invention consists of a machine the component parts of which comprise a bed piece or base, a main shaft and feed-wheel, a cutting-disk and bearingrolhand a guide; and our improvements consist in the peculiar construction and combination of parts hereinafter fully described and claimed.

Leferring to the accompanying drawings,A designates the base of the machine, consisting of a casting having feet a a, designed to rest upon and be fastened to a suitable work-table. Said casting has standards I) b, which afford bearings for a shaft, B, which carries at one end a feed-wheel, 0, formed with aroughened periphery, similar to that used in some sewing machines, and which projects slightly above the plane of a cloth-plate, D, through a slot, (1, in the latter. Saidshaft B has on its opposite or rear end a pulley, E. The cloth-plate D rests upon and is secured by screws to thestandard b and on another standard, I)", on the feed end of the bed-piece A. The bed-piece A has at its rear end two parallel uprights, F E, which afford bearings for a cross-shaft, G, which is cast integral with and in effect forms trunnions for an arm, H, permitting said arm to have some play or allowing it to be moved in a vertical plane, as

hereinafter set forth. The tendency of said arm is to drop, by reason of the weight of itself and what it carries, on the cloth-plate D. This tendency is assisted or re-enforced by a spiral spring, I, on a rod, 1, one end of which passes through the standard I), the other being connected to an arm, g,dcpending 5 from the rock-shaft G.

The arm H affords bearings for the main shaft K, and is bifurcated at. its forward ex tremity or head H, affording bearings in its forks to a shaft, L, which is slightly inclined from a vertical line. and carries a bevel-wheel, l, in mesh with a pinion, 7;, on the main shaft K. Said shaft K has two pulleys, 7; and 7d, the former receiving the drivingbelt and the latter a belt by which the feed-shaft is driven. 6 5 The lower fork of the arm-head H is extended laterally, as shown, forming a lug, h, which has hinged to it a block, H, that carries an inclined shaft, N. To hold this block lll. steady and to adjust it with relation to the lug h, there is provided an adjusting screw or bolt, m. On the shafts L and N are gear-wheels Z 171., both of the same size and in mcsh, so that they travel coincidently and at the same rate of speed. 7

The shaft L has secured to its lower end a cutting or pressure disk, 0, and the shaft N carries a bearing-roll, P. The edge of the disk 0 impinges against the periphery of the roll I, so that fabric fed between them will be trimmed or severed by pressure. To permit the disk 0 to be adjusted higher or lower with respect to the periphery of the roll P so as to out off or trim more or less of a hem or welt, the shaft L, which carries said disk, is made Vertically adjustable, and to this end is provided with an adj usting-nut, Z, that en ters, as shown, a threaded socket in the boss h, which terminates one of the forks of the head H. Above this adj ustingnut i is a colo lar, Z fastened to the shaft L by means of a pin, 1, and encircling the nut Z is a jan1-nut, Z To elevate the disk 0, the nut Z is first loosened and the adjustingnut i turned, so as to move in an upward direction. The required 5 elevation having been attained, the jam-nut Z is then turned down on said nut 1 until it meets and binds against the boss h.

The bevel-wheel Z is not secured directly to the shaft L, but upon a sleeve, L, which is fitted on said shaft, and caused to turn therewith by means of a pin, Z, which passes through said shaft, its end fitting in a slot, Z in said sleeve. By means of this arrange- -ment the vertical adjustment of the shaft L does not disturb the gear-wheel I, nor vary its engagement with the pinion 70.

Q is an eccentric lever, pivoted in a hanger, q, depending from the arm H and bearing against the cloth-plate, said lever serving to lift the arm H and keep it sustained in an elevated position when desired to introduce or withdraw fabric.

It represents a guide secured to the clothplate D. It consists of two plates, and r, the former being adj ustably secured, by means of screws r W, to the cloth-plate, and the plate 1" being adj ustably fastened on plate r by means of screws r 1", which pass through slots r r. This construction permits a double adju'stment-d. 6., of the whole guide on the clothplate, and of one section of the guide relatively to the other. The plate 1 is substantially a J shaped piece, its bend trending toward the outer edge of the plate 1", and its edge being prolonged to form a point, T

In operation the fabric to be trimmed is laid i upon the cloth plate, the part to be cut off passing into theeguide and between the edges of the plates 1" 1". Motion being communicated to the shafts, the feed'wheel carries the fabric along, the edge to be trimmed coming between the disk 0 and roll P and being severed or trimmed off thereby. The weight of the arm H and of the parts it carries, along with the action of the spring, produces a pressure of the disk and roll upon the fabric, so that no separate presser-foot is required.

To vary the extent of the cut or the distance of the line of severance or rupture from the line of stitching or other defined mark, the disk 0 may be raised or lowered by adjusting the shaft L, as already explained. To vary the distance between the edges of the disk 0 and roll P, so as to adjust the machine for operation on different thicknesses of fabric, the block M may be moved laterally by means of the adjusting-screw m, and the space between the edges of the guide may be adjusted by sliding the plate 1" on plate 0. The shafts L and N are inclined, so as to throw the disk 0 and roll P out of the horizontal, in order that their points of contact or contiguous edges may be in a lower plane than their outer edges, so that the latter will not press upon the fabric beneath or interfere with its feeding.

This machine is primarily intended for use in trimming the welts or hems of fabrics which have been already stitched on a machine, and its paramount excellence resides in the fact that it will trim much closer than any trimmer attached to a sewing-machine and operating to stitch and trim coincidently. It can also be run at a much higher rate of speed than a sewing-machine, and, unlike trimmers attached to sewing-machines, its use is not suspended by a defect in the stitching .operation.

found that thereby a better result is secured than would be if the rotation of said disk and roll were at the same rate as the feed-wheel.

What we claim as our invention is as follows:

1. In a machine for trimming fabrics, the combination, with a supporting-arm, of two vertical shafts sustained thereby, said shafts being inclined with respect to each other and receding apart as they descend, one of said shafts having a disk and the other a roller, against the periphery of which latter the edge of said disk impinges, whereby the superfluous edge of material fed beneath said disk and roller will be removed while standing vertically, substantially as shown and described.

2. In a machine for trimming fabrics, the combination of the following parts, viz: an arm carrying a horizontal shaft and supporting two vertical shafts geared therewith, and carrying, respectively, a disk and roll, said disk having an edge which bears against the periphery of said ro11,with acloth-plate,and a feed-wheel located below said cloth-plate and projecting upwardly through a slot in the latter, substantially as shown and described.

3. In a machine for trimming fabrics, the combination of a disk anda roller, against the periphery of which said disk bears, two ver tical-inclined shafts upon which said disk and roller respectively are mounted, said shafts being geared together, a pivoted arm in which said shafts are supported, and a cloth-plate below said shafts and arm, substantially as shown and described.

4. The combination, with the head H, carrying the shaft L, of the hinged adjustable block M, supporting the shaft N, substantially as shown and described.

5. In a machine for trimming fabrics, the combination of the following elements: two vertical-inclined shafts carrying, respectively, at their lower ends adisk and a roller, against the periphery of which latter the edge of said disk bears, an overhanging arm in which said shafts are supported and have their bearings, a cloth-plate below said shafts and arm, a feedwheel beneath said cloth-plate, the latter having a slot through which the roughened sur- In testimony that we claim the foregoing face of said wheel projects, and a guide sewe have hereunto set our hands.

cured on the upper surface of said cloth-plate one of the sections of said guide being pro DENNIS SWEENEY 5 longed into a point, substantially as shown REHFUSS' and described. Witnesses to signature of Sweeney:

6. In a machine for trimming fabrics, the 7M. J. TAYLOR, combination, with the trimming-disk and J. E. SMITH. roller and their supporting hinged or pivoted Witnesses to signature of Rehfuss: [0 arm H, of the eccentric lever Qand cloth-plate W. D. GONNOLLY,

D, substantially as shown and described. XVILL H. POWELL.

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