US269361A - Rich jansen - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1. O. WIDMER.

QUILTING MACHINE. No. 269,361. Patented Dec.19 1882.

WITNESSES: Y INVENTOR 144.. okzww. kmles wiame'r BY ATTORNEYS r PETERS. Phnhrliihcgr-lphnr. Wnuhingium 04 c.

(No Model.) v 4 Sheets-Sheet 2.

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. QUILTING. MACHINE. No. 269,361. Patented Dec. 19, 1882.

wmmssns: INVENTOR Moxle s \b'xcmw ATTORNEYS (No Model.) 4 Sheets-Sheet a. O. WIDMER.

QUILTING MACHINE. Y No. 269,361. Patented De0.19,1882..

WITNESSES: INVENTOR Mawmzw Uuwleswkamer ATTORNEYS (No Model.) 4 Shts-Sheet 4. U. WIDMER.

QUILTING MAQHINB.

No. 269,361. Patented Dec.19, 1882.

INVBNIOR Charles W'xamm" BY v WITNE$SES:

ATTORNEYS u PETERS. PhuIvJilhngnpher. Washmgion. ac

UNITED STATES PATENT Gretna.

CHARLES VIDMER, OF BROOKLYN, NEWV YORK, ASSIGNOR TO HIMSELF,

LOUIS JANSEN, FRANZ ALBRECHT, RICH JANSEN, ALL OF SAME PLACE.

HARTl VIG NEUMANN, AND FRIED- QUILTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 269,361, dated December 19, 1882.

Application filed October 3,1882. (No model.)

To all whom ct may concern:

Be it known that I, CHARLES WiDMER, a citizen of the United States,residing at- Brookl vn, in the county of Kings and State of New York, have invented new and useful Improvements-in Sewing-Machines, of which the following is a specification.

This invention is especially adapted to sewing-machinesfor quilting or othersimilar work;

and it has for its object to produce a machine capable of making a chain-stitch with the loop upon the face of the fabric instead of beneath it, as heretofore, by means of a single thread, and also to arrange the stitches in azigzag or other analogous plane without moving the cloth for this purpose. These objects I accomplish by the mechanism illustrated in the accompanying drawings, in which- Figure l is a vertical cross-section, showing a series of needles and loopers and the positions of the parts when the needles have risen above the surface of the cloth. Fig. 2 is an inverted plan view, partly in section. Fig. 3 is a vertical cross-section on the line or :r, Fig.

1. Fig. 4 is an end view. Fig. 5 shows a portion of the bed-plate in plan view. Fig. 6 is a detail view, showing one of the needles and its concomitants. Fig. 7 shows one of theloopers in vertical section. Fig.8 is a perspective view 3 thereof. Fig. 9 shows a piece of fabric sewed by my machine.

Similar letters indicate corresponding parts.

The letter A designates the base of the machine, having its top provided with guideways B,into which is fittedabed-plate, G, forming, together with an arm, D, a carriage for supporting the sewing mechanism, such carriage being arranged to receive an intermittent motion in opposite directions, as hereinafter explained.

- 0 The bed-plate O is dovetailed, and the arm D is similar in shape to that of an ordinary sewingmachine, it being secured to the bed-plate at one end by bolts or other suitable means.

On the arm D is formed an ofi'set,1),tl1rough 5 which pass vertically a series of cylinders, E,

having a reciprocating motion in a vertical direction and forming guides for the needles F, (see Fig. 6,) together with the verticallyreciprocating needle-bars F. Each of these guides E is provided at the lower end with a presser-foot, 7', which is of tapering form and terminates in a flat end or point, and the respective needles F are fitted into this foot, while the needle-bars F are fitted into the upper parts of the'guides. 5

In the bed-plate O are arranged the tubular loopers G, one to each needle, the plate being provided with holes for this purpose in such a manner that the loopers are in the vertical plane of the needles-that is to say, the axes of the loopers arein such planes. These loopers Gr receive a rotary reciprocating motion, and each is provided with an eye, 8, at the upper end, (see Figs. 7 and 8,) forming a threadguide, the part containing this eye being preferably made in shape of a hook.

Each of the needles F is formed with a hook,

t, (see Fig. 6,) at or near the point, and in the motions of the needles wherein they enter the loopers this hook is brought to a point below the thread-guide s.

In applying the machine to use a thread is introduced to each of the loopers G from a lower direction and passed through the guide 8, as indicated in Figs. 7 and 8, and the motions of the parts are so regulated that when either needle has reached its lowest position the looper concomitant thereto makes a partial revolution and lays the thread against the neodle, thereby bringing the thread into the path of the needle-hook. The needle then ascends, while the looper returns to its first or normal position, and by the action of the needle-hook the thread is drawn upward through the fabric in the form of a loop, each loop passing through the one preceding it to produce a chain-stitch. The position of the loops referred to is upon the face of the fabric, and by this arrangement the stitches acquire an ornamental character very desirable especially 0 in quilting. As the needle penetrates the fabric to bring up a fresh loop the proper presserfoot 1' descends and bears upon the fabric around the needle until'the latter returns to its upper position, and by this means each 5 loop is firmly held down upon the fabric until the succeeding loop has been drawn through I which shares the motion of such plate and carit, which insures the proper action of the needle. When the needle has reached its upper position the presser-foot ascends to release the loop and allow the fabric to be fed forward.

Next to the loopers. G are arranged the feedrollers H H, one below and the other above the surface of the bed-plate G, the lower roller having fixed hearings in the base A and the upper roller having yielding bearings. Said lower roller, moreover, is roughened in any usual or suitable manner, and it receives an intermittent revolving motion, so as to act in the required manner on the material introduced to the rollers, such motion being transmitted to the upper roller by frictional contact. The direction in which the carriage formed by the bed-plate O and arm 1) moves islaterally to the machine, and its movement is so regulated as to take place after each shifting of the cloth due to the action of the feedrollers; or, in other words, the carriage has an intermittentmotion first in one direction and then in the other, and the effect thereof is to bring the stitches into a zigzag or other analogous plane, while the material travels in a rectilinear course.

The best means which I have hitherto dcvised for producing the described motions of the parts is as follows: The needle-guides E are inserted at the upper end in a cross-head, E, which is subjected to the action of springs E having a tendency to force it downward. and said cross-head is connected to vertical slides E having their upper ends bent to engage with cams E fixed to a shaft, I, so that when a revolving motion is given to this shaft the cams co-operate with the springs to impart a reciprocating motion to the slides, and thence to the cross-head and needle-guides. The needle-bars F are inserted at the upper end in a cross-head, F which is provided with brackets 0, having pivotal connections, with eccentrics F on the shaft I, and also provided with guides F (see Fig. 3,) sliding on the back of the machine-arm D, so that the eccentries operate to impart a reciprocating motion to the cross-head and its connections. The shaft I has its hearings in bosses p at the opposite ends of the machine-arm, and it carries a cog-wheel, J, gearing through an intermediate or idler wheel. J. with a similar wheel, J on the main shaft K. The intermediate or idler wheel, J, is mounted on a stud, n, fixed to the machine-arm, causing it, together with the cog-wheel J, to share theintcrmittent motion of the arm and bed-plate forming the carriage; and, in order to permit such motion without throwing the parts out of gear, the wheel J of the main shaft is widened to a sufficient extent to cause the intermediate wheel, J, to keep within the edges thereof in any position of the carriage. The main shaft K has its bearings in the base A, and it carries a pulley, K, to connect with a drivingmiedium.

From the bed-plate 0 depends a bracket, T1,

ries a vertical spindle, 0, having fixed to its lower end a bevel-wheeht'. This wheelt'meshes with a similar wheel, j. which is keyed to the main shaft K, so as to be capable of sliding thereon, and which is in engagement or connection with the bracket, the hub of said wheel being provided with a circumferential groove, j, (see Fig.1.) and the bracket being forked, as at c, to catch into the groove, so that while a revolving motion is imparted to the spindle from the main shaft through the bevel-wheels both wheels are caused to follow the bed-plate in its intermittent motion, and at the same time preserve the proper relation to each other.

To the upper end of the spindle e is fixed a crank, h, which is connected by a link, h, to a sliding rack, N, (see Fig. 2,) engaging with pinionso, which are fixtures ot' the loopers,so that by the action of the crank a longitudinally-reciprocating motion is imparted to the rack, while the latter in turn acts on the looper-pinions to impart the required motion on the loopers. Said rack N works between the bed-plate O and a step, N, and it is guided by lugs g, Fig. 2, the step being secured to the bed-plate and having suitable holes for the downward passage of the loopers.

In the base A is mounted a shaft, 1?, having an intermittingly-revolving motion and carrying a cam, P, which engages one end of a horizontal lever, f, having its fulcrum in a pivot, f, on the base, and having its other end connected by a rod,f with the bed plate 0, so that by the action of the cam and lever the required motion is transmitted from the shaft P to the bed-plate.

To that end of'the main shaft K opposite the pulley K are fixed two cams, Q Q, (best seen in Fig. 4,) oneof which acts directly on a clutchlever, 1t, hung loosely on the shaft H of the lower feed-roller, while the other acts through an intermediate plain lever, B, on a clutchlever, R hung loosely on the cam-shaft P, such action of the cams being to impart an oscillating motion to the levers. Each of the levers R R engage with a flanged disk, R or R fixed to the cam-shaft P and roller-shaft H respectively, in such a manner that an intermittent motion is thereby given to the disks, and thence to the shafts, the lower feed-roller, H, and to the cam P and its connections.

The bearings for the upper feed roller, H, consist of levers S, (see Figs. 3 and 4,) which are pivoted to standards S, risingfrom the base A, and are subjected to the action of springs 8, having a tendency to depress the upper feed-roller upon the lower one. In the standards. S is mounted, also, a rock-shaft, S carrying tappet-s S, which impinge against the levers S above or opposite to the springs and a handle, S so that if this handle is swung in the proper direction the tappets act on the levers to lift the upper feed roller against the action of the springs 8?. To allow the upper feed-roller to be kept in a raised position the base A is provided with a socket, 0, (see Fig. 4,) and the handle S with a spur, 0', (see Fig. 2,) adapted to enter the socket.

It should be remarked that in some cases a single needle only may be used, while the laterally reciprocating carriage, moreover, may be used with other sewing mechanism than the needle and looper herein described.

"What I claim as new, and desire to secure byLetters Patent, is-- 1. The combination, substantially as hereinbel'ore set forth, of the bed plate (3, the arm fixed to such plate,theneedle-guides and needlebars arranged on the arm one within the other, the cross-heads carrying the needle guides and bars, respectively, and the shaft I, arranged to act on the connections of the cross heads for imparting the requiredmotions to the needle guides and bars.

2. The combination, substantially as hereinbet'ore set forth, with the bed-plate G and hookpointed needles, of-the loopers arranged in such plate and each provided with a pinion, the reciprocating rack engaging the looper-pinions, the bracket L, depending from the bedplate, the vertical spindle of the bracket having its upper end provided with c a crank which is connected to the reciprocating rack, and the lower end provided with the bevel-wheel t', and

themain shaft having keyed thereon the bevelwheel j, which meshes with the spindle-wheel i and connects with the bracket, for the purpose specified.

3. The combination, substantially as hereinbefore set forth, with the feed-rollers H H, of 5 the levers S, forming the bearings for the upper roller, the springs S acting on the levers with a tendency to depress the upper roller, and the rock shaft S carrying the tappets S, which impinge against the levers, and the handle S for the purpose specified. v

' 4. The combination, with the sliding bedplate 0 and the arm 1), secured thereto, of the tubular reciprocating guide passing through an off-set in said arm, the needles F, working through the said tubular guides, the tubular rotary reciprocating loopers located in the bedplateand the feed-rollers, the needle-bars for the needles and the tubular needle guides being connected with independent verticallymovable cross-bars both actuated from cams and eccentrics on a common shaft, substantially as described.

In testimony whereof I have hereunto set my hand apd sealin the presence of two subscribing witnesses.

CHARLES WIDMER.

Witnesses:

W. HAUFF, CHAS. WAHLEns.

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