US319766A - Maohiie - Google Patents

Description

3 Sheets-Sheet 1.

J. E. WHITE.

SEWING MACHINE. No. 319,766. Patented June 9, 1885.

N. PETERS. Phnbl-iibognph'r, nnnnnnnn Q 3 Sheets-Sheet 2.

J. E. WHITE.

SEWING MACHINE.

Patented June 9 3 SheetsSheet 3.

J. E. WHITE.

I SEWING MACHINE. No. 319.766. Patented June 9, 1885,.

il Nrr JOHN E. WHITE, OE COLUMBUS, OHIO, AssIeNOa TO PETERS LEATHER "DASH OOMPANY, OF SAME PLACE.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 319,766 dated June 9, 1885.

Application filed April 12, 1879.

To all whom it may concern:

Be it known that I, JOHN E.'WHITE, of the city of Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a specification.

This invention has to do with sewingmate' rials'on one or more sides of a cylindrical or bar-shaped body of any desired form in crosssection-as, for example, sewing the leather cover on the frame rods or bars of dashes,

fenders, and bows, &c., of vehicles, and also on the filling of whip handles, &c., or the round part of a harness, orany similar work.

One feature of my invention consists in the combination, with a needle-bar, and means for imparting a vertical reciprocating movement to the same, of an auxiliary presser-foot, and mechanism whereby a portion of the vertical reciprocating movement of said needle-bar is impartedtosaidpresser. Whilevariousmeans can be employed to enable a portion of the vertical'reciprocating motion of the needlebar to be imparted to the auxiliary presser, I'

prefer to employ the combination of mechanism hereinafter specified; and this last-named combination of mechanism forms another feature of my invention.

Another feature of my invention consists in the combination, substantially as hereinafter ,set forth, of the auxiliary presser-foot, and

means for enabling the said presser to yield and accommodate itself to any irregularities or the varying thickness of the stuff or goods to be sewed, thereby preventing the foot from mar-ring or defacing the surface of the goods to be sewed.

Another feature of my invention consists in the combination of an auxiliary presser-foot and a presser-foot, and means for enabling the presser-foot, supported upon the body to be covered, to hold the covering material closely upon the body to be covered, and in conjunctionwith the feed-plate beneath the body to be covered, to feed the said body and the covering material to be sewed forward, and the said material along under the needle, and also for enabling the auxiliary presser-foot and the presser-foot to conjointly hold the material closely down upon and partially around the body to be covered, and down upon that portion of the covering material on the needleplate, and enabling the auxiliary presser-foot at the-same time to retain all of the benefits derived from its :action independent of the movements ofthe presser-foot upon the body to be covered, and also to retain its capacity to yield to the varying thicknesses or inequalities of the goods, and at the same time leaving the pressenfoot over the body to be covered free to feed forward said body and goods. These and other features of my device are hereinafter fully set forth. Referring to the drawings forming part of this specification, Figure 1 is a perspective viewof the raised needle-plate, feed presserfoot, auxiliary presser-foot, and mechanism for enabling a portion of the'vertical reciproeating movement of the needle-bar'to be communicated to the auxiliary pressepfoot, and also showing a means for enabling the auxiliary presser-foot to accommodate itself to the inequalities of the surface of the material to be sewed upon the body to be covered. Fig. 2 shows in section the'relative position of the more important features of my invention, this section being such as would 'be'made by a vertical plane passing through the needle and through the bar 0 at right angles to the length of the latter. Fig. 3 is a partial elevation of a sewing-machine head, showing the needle bar, presserfeet, operatinglevers and part of theioperatingshaft, and the feed and shuttle mechanism, together with part of its operating-shaft. Fig. 4 is a front elevation of the face-plate of the machine. Fig. 5 is asectionalelevation of the machine, looking in the direction indicated by the arrow, Fig. 3,showing mechanism to the right of line m min said Fig. 3. Fig.6 is a plan view showingthe whereby the lateral motion imparted to 'it may be graduated.

Secured to the face-place X of the machine are the needle-bar B, the main presser-foot bar B, and the supplemental or needle presserfoot bar A.

usual manner, the latter being so constructed that a space shall be provided between it and the face-plate to accommodate the mechanism that operates the needle-bar and resser-feet. The needle-bar B is constructed in the usual manner and adapted to fit snugly in a channel in the rear surface of the face-plate. It is provided with a heart-shaped cam, b, which engages with the roller-stud f upon crankwheel F, the latter being secured to the driving-shaft G, journaled in the goose neck, and arranged for imparting motion therefrom to the needle-bar by means of said cam. The auxiliary presser-foot bar A is adapted to fit and reciprocate vertically within a channel in the rear surface of the face-plate, and is provided with a stud, b. This stud engages with slot d in the lever D, which latter is pivoted at d to the rear surface of the face-plate, and this lever, when operated, is thereby enabled to impart motion to the auxiliary pressen foot bar. By means of the roller-stud!) on needle-bar and slot a in lever D, with which the said stud engages, motion may be imparted through the lever to the auxiliary presser-foot bar from the needle-bar.

In order to employ a short lever,and also to provide for a complete stroke of the auxiliary presser-foot bar during a partial stroke of the needlebar, the slot cl is broken or angular, I one section thereof lying directly across the path traveled by the needle-bar, and by means of which the lever is operated while the roll er-stud remains in it, and the other section .0 bearing such relation to the first section that at the time the roller-stud is in position to enter it, it will coincide with the path of the needle-bar and permit the travel of said bar the presser-foot has made its stroke it will be held rigidly against the goods until the return of the needle-bar.

In order to temper the stroke of the auxiliary presser-foot so that the latter may not injure the surface of the goods, however highly polished or glazed or delicate the surface may be, by overstroke'when it comes in contact therewith, I have secured it loosely upon the bar A, between a downwardly-acting spring, i a, and a retaining flange or collar, a. By this means when the auxiliary presser-foot binds the goods before the completion of its stroke,

0 it will hesitate, and, by virtue of the spring,

clamp the goods against the needle-plate E" while the bar A continues its'travel to the end of the stroke. The needle-plate E is prefer- This face-plate is secured to the 5 forward extremity of the goose-neck in the .motion in one direction to bar B.

4 together against the needle-plate, thereby holding these edges firmly and in good position to be sewed. The main presser-foot bar B is secured against the front surface of the faceplate by the crank-lever H, to the free end of which it is pivoted near its upper extremity, and it is secured against said face-plate near its lower extremity by a slotted guide-plate, I,

which permits of its lateral motion across the surface of the face-plate when operating to feed the goods. The bar B is provided with a cylindrical socket, b (see Fig; 4,) to engage the end of lever H and form a pivotal con- I nection, while as a further precaution a pin,

1), is passed through the end of the lever concentric with the socket and embedded in the bottom thereof. Secured to the goose-neck is aspring, J, which bears down upon the u pper end of the bar B, and when the latter is free to descend forces it against the goods to be fed. The crank -arm His secured to a shaft, h, journaled in the face-plate and gooseneck, and this shaft carries a lever, h, which engages with an operating-cam, K, on driving-shaft G, and transmits motion therefrom to elevate the bar B. Near its lower extremity the bar B is provided with a lateral extension, If, to project beyond the edge of the v face-plate and receive against its rear surface the sleeve or stud of cam M, which is secured thereto by a set-screw, m. Fulcrumed upon rod n, journaled in the face plate and goosewithout further movement of the lever, aswell f .5 as secure the lever rigidly against movement of every kind. Thus it will be seen that after neck is a lever, N N, one arm thereof hearing I against cam M on bar B and the other against cam 0 upon operating-shalt G, so that motion may be imparted therefrom to give lateral To keep cam M always against lever N, and that-in turn against cam 0, and thussecure a lateral motion of bar Bcontraryto that fur-' nished by the above-described mechanism, I provide a spring, P, secured to edge of faceplate and bearing against the stud of cam M 'in a direction diametrically opposed to that of I lever N N. This spring I forces the presserfoot B, after a stitch has been made, back to the position for feeding another stitch. By

adjusting the position of cam M upon bar B thelateral movement thereof may accordingly be regulated and the length of stitch deter mined; V I

In order to temporarily raise the presserplay an L-lever, Q, pivoted to the goose-neck at q, with the short arm resting in contact with the under side of the stud upon cam M, and

. 3 foot B at any time forthe insertion of work, I emby tilting this lever the above result maybe secured. The shuttle-frame and carrier B is pivoted to a downward extension of the needleplate arch E at r, and it is reciprocated by crank-wheel 8 upon operating-shaftS through connecting-link r. The feed-plate carrierframe D (see Fig. 7) is pivoted to the needleplate arch at r, and is reciprocated by leverarm T on shaft T, the latter receiving motion from operating-shaft S (see Fig. 5) through cam Vand forked lever T The feed-plate carrier is kept snugly against the vertical face of the needle-plate arch Eby guide-screw t tapped into the arch and passing through slots t in the carrier. The lever-arm T engages with a notch, t (see Fig. 7,) in a lateral extension of the carrier-frame, and the amount of play which the lower arm, T, is to have within the notch is controlled by set-screw t and by the latter the feed is thus regulated.

In the surface of the carrierframe, contiguous to the needle-plate arch,a vertical groove is formed, and this groove receives and accommodates the vertical movement of the feedplate bar D ,to which the feed-plate is bolted. This construction permits the rising and falling movement of the feed-plate, and the needleplate arch is recessed at e to receive the overhanging lip of the feed -plate D when depressed and out of contact with the goods.

To elevate the feed-plate the bar D is provided with a roller-stud, D to ride upon the canrbracket R of the shuttle-carrier frame R, the arch E having an opening,E ,to accommodate this construction. The operation is this: The forward movement of the shuttle-carrier elevates thefeedplate'as the cam R travels under the roller-stud D, and then the travel of the feed-plate carrier operates to feed the goods until the roller-stud reaches the depression in the said cam, when the feedplate D and bar D descend, leaving the goods, which then remain stationary until a repetition of the operation occurs. The motion of the feed-plate D and feed presser-foot B are timed so as to act simultaneously and in concert to feed the goods. The auxiliary presser-foot, which holds the goods while the needle descends, is timed to descend just in advance of the needlebar, and to ascend or leave the goods just before the feeding mechanism begins to act.

In operation the machine acts as follows: First, the goods are introduced, the round, oval, or square body Cto be covered lying directly over the feed-plate and under the presser-foot B, and the goods to be sewed thereupon disposed over the needle-plate, under the auxiliary presser-foot and in the path traveled by the needle. The presser-foot B is released by lever Q and allowed to bear upon the goods, and the machine set in motion. The needle-bar begins to descend, and, acting through roller-stud b upon lever D, causes the auxiliary presser-foot A to descend also, and, as before said, the presser-foot will have reached its lowest position by the time the roller-stud reaches the angle of slot ol in lever D, at which time the portion. of said slot beyond the angle will be in line with the path traveled by the roller-stud, and the needle-bar will complete its stroke, and at the same time hold the .lever D rigidly in position and the auxiliary presscr-foot A against the goods, which latter are thus clamped tightly around the body 0. The shuttle and carrier then move forward to engage the needle-thread,and

. at the same time the cam It elevates the feedplate D in readiness to feed the goods. needle-bar now ascends to complete the lock- The ing of the stitch, and when the roller-stud reaches the angle of slot d in lever D and the needle has entirely left the goods it begins to elevate the auxiliary presser-foot A, and continues so to do until the limit of the upward stroke is reached. At this time the feed-plate and feed presser-foot have begun to feed the goods for'the next stitch, and they will continue so to do until the depression in the cam R is reached and spring P has completed its stroke, when the feed-plate will drop and cam K, acting through leversh H, will elevate the presser-foot B. The shuttle-frame is now returned toils first position through the rotation of shaft S and crank-wheel s acting upon link r, pivoted at one end to the wheel 8 and at the other end to the shuttle-frame. The presser-foot bar B, swinging from the end of lever H, is forced back to a vertical position by cam O acting upon lever N, which latter,- through the shaft n, operates lever N, and the latter in turn moves cam M, and by same moves bar B. The canr K releases levers h H, and the spring J forces the presser-foot bar B down till the foot of said baragain rests upon the goods. The operation of making one stitch is now complete. For every stitch that is made the above-described operation is repeated, except that the lever Q is not again operated till the stitching has been completed and it becomes necessary to lift the presserfoot B and release the goods from its pressure.

It may be here remarked that the presserfoot Band feed D may be of any desired form as, for instance, wheels or plates. Furthermore, the spring a may be a spiral spring, as here shown, or a spring of other descriptionas, for example, a disk of india-rrubberas but a slight amount of motion of the foot A on the bar A is needed.

Instead of the rollerstuds 1) and b, studs without rollers may be used to accomplish the same purpose.

I prefer to employ all the features of my invention above described; nevertheless some of these features may be omitted, and my invention in part still be of advantage. Among the changes that may be made are the following, viz: The raised needle-plate may, when desired, be dispensed with and a flat needleplate used instead. In such case I am still enabled to attain certain objects of my invention in connection with sewing covers onto bars, &c.to wit, to avoid the necessity of reversing the goods and also to employ a very narrow margin. presser-foot B need not in any manner contribute to feeding the goods, but may act simply to hold the goods down tightly against a feeding device, as D, located in the bed-plate E of the machine; or the presser-foot B may be dispensed with, the operator holding the goods down upon the feed-plate D. I

Any known form of mechanism for operating the needle-bar and the presser-foot B and feed D may be employed, but I prefer to employ the means heretofore described.

The abovedescribed mechanism foroperating the auxiliaryrpresser foot, and which mechanism is one of the features of my invention, may be employed for operating any other form of presser-foot; and where but one presser-foot is employed this mechanism may be employed for its operation. 7

What I claim as new and of my invention, and desire to secure by Letters Patent, is

1. The combination of presser A A, provided with stud b, lever D', provided with slots d and d", and pivoted atd toa stationary part of the machine, as the head-plate, and the vertical]y-reciprocating needle-bar B, provided with stud b, substantially as and for the purposes specified.

2. The combination of the lever D, pivoted at d to the head-plate and provided with slot d, and slot d, located between slot d and pivot d, presser A A, provided with stud I), working in slot d, and the vertically-reciprocating needle-bar B, having stud b, working in slot (1, substantially as and for the purposes specitied.

3. The combination of the presser A A, pro- Should it be desired, the

vided with stud. b, lever .D, provided with slots d and d, and pivoted at d to a stationary part of the machine, as thehead-plate, and the vertically-reciprocatin g needle-bar B, provided with stud b, and raised needle-plate, substantially as and for the purposes specified.

4. The combination of the presser foot A,

spring a, bar A, provided with roller-stud b,

lever D, provided with slots d and d, and needle-bar B, provided with roller-stud b, and means for imparting vertical reciprocating motion thereto, substantially as. and for the purposes specified. I

5. In combination, the presser-foot A, bar A, provided with roller-stud b, lever D, provided with slots d and (Z and needle-bar B, provided with roller-stud b, means for imparting a vertically-reciprocating movement to said needle-bar, raised needle-plate E, feedplate D, and presser-footB, substantially as and for the purposes specified.

6. In combination, the presser-foot A, provided with spring a, bar A, raised needleplate E, and feed-plate D, substantially as and for the purposes specified.

7. In combination, the presser-foot A, spring a, bar A, provided with roller-stud b, lever D, provided with the slots d and d, and needle-bar B, provided with roller stud b, means for imparting vertical reciprocating motion to said needle-bar, raised needle-plate E, and feed-plate D, substantially as and for the purposes specified.

JOHN E. WHITE. Attest:

G. H. BOSWORTH, E. R. HILL.

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