US593393A

US593393A - Office

Info

Publication number: US593393A
Authority: US
Publication date: 1897-11-09
Anticipated expiration: 1914-11-09

Description

(No Model.) 3 Sheets-Sheet 1.

H. GREEN. MACHINE FOR MAKING WAISTBANDS, &c.

No. 593 893. Patented Nov. 9, 1897.

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(No Model.) 3 Sheets-Sheet 2. H GREEN MACHINE FOR MAKING WAISTBANDS, m.

Patented Nov. 9, 1897..

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-(No Model.) 3 SheetsShet 3.

H. GREEN.

MACHINE FQR MAKING WAISTBANDS, 6m, 7 Nb. 593,393. Patented'Nov. 9, 1897.

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UNTTED STATES PATENT HERMAN GREEN, OFNEW YORK, N. Y.

MACHINE FOR MAKING WAISTBANDS, &.c.

SPECIFICATION forming part of Letters Patent No. 593,393, dated November 9, I897.

' Application filed February 24,1897. Serial No. 624,880. (No modem To (0% whom it may concern.-

Be it known that I, HERMAN GREEN, a citizen of the United States, residing in the city and county of New York, in the State of New York, have invented certain new and useful Improvements in Machines for lWlakin g YVaistbands, &c., of which the following is a specification, reference being had to. the accompanying drawings, forming a part thereof.

This invention relates in general to machines for the manufacture of waistbands and other like articles in which tabs or loops are applied to the body fabric; and the object which I have had in view is the provision of means for applying such tabs or loops to such body fabric whereby the manufacture of the waistbands or other articles may be carried on with great rapidity.

I prefer to employ my devices in connection with a sewing-machine of substantially ordinary construction, and in accordance with my invention I have provided a tab or loop holder, whereon the tabs or loops are placed by the operator or by any suitable means, and which is caused to travel so as to apply the tabs or loops at the desired intervals to the body fabric, which preferably passes immediately to the stitching mechanism of the sewing-machine, by which the tabs or loops are immediatelysecured to the body fabric. I have also provided means for feeding the body fabric and means for severing the body fabric after the tabs or loops are attached thereto into lengths suitable for use.

The various features of my improved devices will be more fully described and eX- plained hereinafter with reference to the accompanying drawings, in which I have illustrated a convenient and practical embodiment of my invention.

In said drawings, Figure 1 is a front elevation of a sewing-machine of ordinary construction to which my improvements are applied. Fig. 2is a plan view of the same. Fig. 3 is an end elevation thereof, and Fig. 4 is a detail view to be referred to.

The sewing-machine to which my improvements may be applied may be of any ordinary construction. As represented in the drawings, it comprises a base or table A, having a clothplate a, arm B, shaft 0, with driving two needles cl d, presser-foot E, and footbar E, all as usual in machines of this description. For the special class of work for which this machine is intendednam'ely, the manufacture of waistbandsit may also be provided with a folder F for the purpose of properly folding over the edge of the fabric and holding the fold open to receive the tabs or loops before they pass together beneath the 'presser-foot.

As a convenient means of driving the working parts of my devices I prefer to provide on the shaft 0 a pinion c, which meshes with the gear G on a shaft G, which is supported by suitable bearing-standards'g g. The tab or loop holder H is adapted to receive the tabs or loops from the operator or from any suitable source and to present them in succession to the body fabric. It will be obvious that this tab or loop holder may be arranged in many different ways, but I prefer that it shall have the shape of a wheel or disk which for convenience is disposed in a horizontal plane, with slots or notches or other devices h h at intervals about its periphery, each one of which is adapted to receive a single tab or loop and to deposit it upon the body fabric in advance of the presser-foot. This disk orwheel which carries the tabs or loops may be securedto a vertical shaft II, which is supported in suitable bearings secured to the base A and the arm B and has secured thereto a worm-wheel hto be engaged and driven by a worm g on the shaft G. The proportions of the gears by which the holder or carrier H is driven are preferably such that the peripheral speed of the holder orcarrier is substantially the same as the speed of travel of the fabric through the machine, but obviously the speed is not necessarily the same. As indicated, the cloth-table a is preferably elevated somewhat, so that its upper surface shall be substantially in the plane of the loops or tabs as they are presented by the holder or carrier II, and the latter is clear of the base to permit the fold of the fabric to I pass under the same. As the tabs or loops project from the edge of the holder or carrier and pass with the fabric and between its folds under the presser-foot and are stitched upon the fabric by the stitching mechanism they ing-pulley c, needle-bar D, preferably carry- 1 are drawn from the holder or carrier by'the fabric, leaving the slots or other holding devices h free to receive other tabs or loops.

It is desirable to provide devices additional to those which form a part of the ordinary sewing-machine for the purpose of feeding or drawing the fabric steadily through the machine,and for this purpose I have provided a pair of feed-rolls I I. The lower roll I has secured to its shaft a gear 7;, which is engaged by an intermediate gear i driven by a pinion g on the shaft G, while the upper roll I has its bearings in movable blocks '6, for the adjustment of which screws t are provided, so that the pressure of the upper roll upon thelower-can be regulated. It will be understood that the two rolls I I are operated continuously and draw the fabric forward at a substantially uniform speed.

In order to prevent the possible breaking of the needles by the forward movement of the fabric when the needles are in it, I prefer to drive the rolls yieldingly rather than positively, or, at least, so that the rolls may give slightly if the fabric is held by the needles. A convenient and efficient device for this purpose is shown in Fig. 4E. The lower roll I is loose upon its shaft I and has a recess 2' in which is placed a spring or cushion 1', preferably of rubber. A pin on the shaft I enters the recess and drives the roll through the spring or cushion, thereby permitting the movement of the roll to be checked momentarily if the fabric is held by the needles.

Upon the supplemental table or extension A, which supports the feed-rolls I I, is also supported a cutter which is operated at regular intervals to sever the successive lengths of the fabric after the tabs or loops have been secured thereto. As represented in the drawings, such cutter may comprise an ordinary shear-knife K, which is pivoted at the end of the extension-table A. It may be operated by any suitable means which will provide for its operation at the proper intervals. I have shown it as having applied a spring 70, which maintains the blade normally in its open position to permit the free passage of the fabric, and is adapted to be operated in the opposite direction by a lever K, which is pivoted to the extension A, and has at its inner end a roller K to stand normally in the path of a cam h on the holder or carrier H, thus providing for the severing of the fabric after it has received the number of tabs or loops carried by said holder or carrier.

It is obvious that during the operation of the cutter the travel of the fabric betweenthe cutter and the feed-rolls I I is checked and that the fabric might wrinkle or pucker so that its end would not pass under the cutter when the cutter opens. It is therefore feed-rolls I and I and the cutter after each operation of the cutter. I have therefore provided a pair of feed-rolls L L, the lower one of which is supported in fixed bearings and is driven by any convenient means, as}? by belt'and pulleys Z I from the shaft of theft? 5 roll I, the said roll L having a. somewhat greater peripheral speed than the roll I. The upper roll L rests of its own weight or under spring-pressure on the lower roll L and is carried by a swinging frame or arms .M, one of said arms or one side of said frame having an extension or finger 'm in the path of the lever K, so that when the latter is moved to operate the cutter it shall at the same time lift the upper roll L from the lower-roll L and so stop the feed of the fabric and allow it to accummulate between the two pairs of rolls.

To prevent the fabric from wrinkling or puckering between the rolls L L and the cut ter when the latter is closed, a guide-plate N is supported above but in close proximity to the table A, so as to leave a passage for the free movement of the fabric While preventing its wrinkling or puckering. The guideplate is preferably extended in front of the rolls L L, being slotted for the upper roll L, and has its end turned up. WVhen the cutter has operated and is opened again, the roll L descends and the fabric is fed forward until it is straightened out between the two pairs of rolls, and thereafter the rolls L L slip upon the fabric, its normal speed of movement being determined by the rolls I I.

It will be obvious that various changes in the construction and arrangement of the various parts herein shown and described may be made without departing from the spirit of my invention, and therefore I wish it to be understood that my invention is not to be limited to the precise construction and arrangement of parts herein shown and described.

I claim as my invention- 7 1. In a machine for making waistbands, the combination with a stitching mechanism having a presser-foot and a needle-bar, and a shaft G operated with the stitchingmechanism and having a worm g and a pinion g of a shaft II supported upon the base of the stitching mechanism and having a wormwheel h to engage said worm g, a disk or wheel II having a series of notches about its periphery to receive tabs or loops and support-ed in proximity to the presser-foot and clear of the base of the stitching mechanism, a feed-roll I and presser-roll I in rear of the stitching mechanism, and gears intermediate said pinion g and said feed-roll I to drive the latter with said disk or wheel H, substantially as shown and described.

2. In a machine for making waistbands, the combination with a stitching mechanism having a presSer-foot and a needle-bar, a disk or wheel having a series of notches about its periphery to receive tabs or loops and supported in proximity to the. presser-foot and means to drive said disk or wheel, of a cutter-blade K in rear of said stitching mechanism, a spring to move said cutter-blade in one direction and a lever operated by a cam on said disk or wheel to move said cutter-blade in the opposite direction, substantially as shown and described.

3. In a machine for making Waistbands, the combination with a stitching mechanism having a presser-foot and a needle-bar, a disk or Wheel H having a series of notches about its periphery to receive tabs or loops and supported in proximity to the presser-foot and means to drive said disk or wheel, of a cutter-blade K in rear of said stitching mechanism, a spring is to move said cutter-blade in one direction, a lever K operated by a cam on said disk or wheel H to move said cutterblade in the opposite direction, a feed-roll between said stitching mechanism and said cutter-blade, and a movable frame in which said feed-roll is mounted, said frame having a projection in the path of said lever K to be operated thereby to lift said feed-roll, substantially as shown and described.

This specification signed and witnessed this 23d day of February, A. D. 1897.

, .HERMAN GREEN. In presence of- A. N. JESBERA, W. B. GREELEY.