US151886A - Improvement in sewing machines for quilting - Google Patents

Description

' 2 Sheets-Sheet I. M. A. KING.

Sewing-Machines fur Quilting.

ND.151, 886. Patentedluhe9,1874.

2 Sheets--Sheet 2.

I M. AIKING. Sewing-Machines for Quilting. N0 .l5l ,886.

Patented June 9 UNITED STATES PATENT OFFIoE.

MANNING A. KING, OF NEW YORK, N. Y.

IMPROVEMENT IN SEWING-MACHINES FOR QUILTING. a

Specification forming part of Letters Patent No. 151,886, dated June 9, 1874; application filed January 10, 1874.

To all whom it may concern:

Be it known that I, MANNING A. KING, of the city, county, and State of New York, have invented certain Improvements in Sewing- Machines for Quilting, of which the following is a specification:

This invention relates to quilting-machines inwhich a carriage, having connected with it theneedle-bar and its series of needles, presser feet, and shuttle-carriers, has a reciprocating traversing motion, while the material to be sewed is passed at right angles to such motion under the needles, by means of feed-rollers and drawing-rollers arranged the one in front and the other in rear of the machine, such traversing motion of the carriage and direct feed of the material causing the stitches to be made in z gzag lines, as required. The invention consists in various combinations of mechan- 1sm, whereby great simplicity, durability, and efficiency are attained, the. same including a ratchet-feed in which an intermittent revolving motion is kept up by reversely moving and reciprocating dogs controlled by a single pattern-wheel; also including two pattern wheels or cams on the same, shaft, for operating in th enproper relation both the feeding mechanism and traversing carriage; likewise, sundry combinations connected with the driving of said arts, and the operation of the shuttledriver and presser foot or feet.

In the accompanying drawings. which form part of this specification, Figure 1 represents a front view of the machine, and Fig. 2 a plan of the same. Fig. 3 is a side View thereof, and

Fig. 4 a vertical transverse section on the irregular line :0 00. Fig. 5 is a further vertical transverse section in part, mainly in illustration of the mechanical devices for actuating the feed and traversing carriage. Fig. 6 is a vertical longitudinal section, in part on the line 313 Fig. 7 is a view similar to Fig. 4, but on a larger scale of the needle-bar, with presserfoot and means for operating the latter.- Fig. 8 is a vertical longitudinal section on the line 2 z of the traversing carriage, with shuttleoperating attachment, and Fig. 9 an inverted plan or under view of the same in part.

Similar letters of reference indicate corresponding parts in all the figures.

the primary or driving revolving shaft. 0 is the traversing carriage, supported by rollers, and D the needle-bar, provided with a series of needles, [1 Z), arranged in rows one before the other, and with the needles of the one row directly, or in straight lines relatively to the feed, behind the needles of the other or front row. E E are the feed-rolls, between which the material to be quilted is introduced for passage over the table F and carriage O and under the needles, to and through or between the drawing-rolls G, said feed and drawing rolls moving in common by means of a connecting endless chain, H. The carriage G has a reciprocating traversing motion transversely to such direct feed of the material to be quilted, for

the purpose of making the stitches in zigzag or irregular lines,-as required. The means of traversing said carriage are as follows: On the shaft B is apartial screw, 11*, which gives motion at intervals-that is, once during each revolution of said shaftto a worm-wheel, I, fast on a revolving shaft or stud, 0, which is adjustable in a slot, (1, of abracket, J, whereby provision is made for substituting a larger'or smaller worm-wheel, according to the speed required, or certain of them. Uponeither end of the main shaft Bthat is, upon opposite sides of the machine-is a grooved cam, K, suitably shaped to give the necessary np-anddown actions and pauses to the needle-bar D,

by means of a divided lever, L, working on a fulcrum, (I, and adjustable by a slotted connection, c, to give more or less stroke to the needle-bar, the one division of each of said levers L being provided with a roller, f, enterin g within the grooved cams K, and such leverdivisions being connected, by rods g, through sliding wrists g, to provide for the traversing movement of the carriage O with the needlebar D, that works in vertical slots h in opposite sides of the carriage sides or checks. One of these rods g is extended downward, and in slotted connection below with a slotted bar, M, that is adjustable as a slide in or along an arm, M, on a shaft, N, to give more or less reciprocatin g motion, as required, to said shaft, that has adjustable bearings, and that, by means of levers O O and adjustable slotted bars 1?, gives the necessary reciprocating movem cuts in lincwith the feed to the shuttle driver or bar Q, which latter is arranged to slide in ways connected with the traversing carriage C, and in suitable relation with the shuttleraces t' therein. The bars P, at their ends farthest from the levers O, are fitted to freely slide through pivoted or rocking connections it, carried by brackets. on the under side of the front portion of the stationary table F, and are provided with boxes or bearings lintermediately of their length, through which rod or wrist like end extensions on of the shuttledriver Q. are free to slide in common with the traversing carriage O, and whereby the move- .ment of said carriage does not interfere with themovement, in atransversedirection thereto, of the shuttle-driver Q. This forms a very simple and effective combination to provide for such two movements. The feed-rolls E and drawing-rolls G, both of which are suitably geared as regards their respective rolls, and said feed and drawing rolls united to work in unison by means of the endless chain H, and pulleys on the ends of certain of said rolls, have their pressure controlled bylevers S and sprin gs a. Motion is given to said rolls as follows: Upon the revolving shaft or stud c of the worm wheel I is a spur, It, which gears with a wheel, T, to give intermittent revolving motion to a shaft, 1'. On this shaft 1' is a pattern wheel or cam, U, shaped on its face to accord with the pattern required, so far as the same is controlled by the feed of the material, but inclining in reverse directions circumferentially, so as to form a raised portion on one side of its axis, and a lowered portion on the opposite side thereof, whereby feeding motion is given alternately, once during each revolution, to the wheel U, to toothed dogs V V, which rest on and gear with ratchetwheels on the shaft of one of the drawing-rolls G, and so that, as one dog V makes a series of intermittent feeding strokes on its ratchet \V, the other dog V makes a corresponding series of slip or back motions over its ratchet \V, thus keeping up a continuous intermittent revolving motion to the drawing-roll shaft, on which the ratchets are arranged. The dogs V V are thus alternately operated, through the pattern wheel U, by means of adjustable levers Y Y, working on fulcrums s, and springs t 2, which latter keep the lower ends of said levers or rollers thereon in contact with the reversely-inclined actingface portions of the wheel U.

011 the same shaft, 0'', on which the patternwheel U is ai ranged to give motion to the feed, is another pattern or cam wheel, X, having an eccentric groove in itsface, in which a roller, a, carried by a lever, A, fits. This lever, which is also adjustable as regards its fulcrum a, is in slotted connection above, by a pin, 1), with the traversing carriage C, to give the requisite motion to the latter. In this way it will be seen that both the traversing carriage and the devices which feed the material are operated by the same shaft, 1*, and that, by suitably changing the pattern wheels U X for others of different shape, or of different diameters, to vary the relative velocities of the devices which feed the material, and of the carriage which. gives a traversing motion while the material is being fed, the pattern to be quilted may be changed in shape and size as required.

The presser-feet B are lifted at intervals, as required, and caused to press or bear down on the material for the necessary length of time, by the direct agency of the needle bar D, operating in conjunction with springs 0, attached to the projections from the backs of the presser feet. Thus the presser feet are fitted to freely rock. on a rod, 61, carried by a stationary cross bar, 0, of the carriage, to which bar are also attached the springs c, that pull upward on the backs of the presser feet, to keep their front portions down on the material. On the face, or in front of and below this stationary cross bar 0, a slotted lifting-bar, D, is fitted, so as to be capable of sliding up and down, by means of upright-s c e and guides or staples f f. This slotted lifting-bar D is arranged to lie over the presser-feet, in front of their fulerums d; and the presser-feet are formed, each, with a lip, h, which passes through its respective slot in. the lifting-bar D.

Attached to the needlebar D are projections i, which, as the needle-bar rises, catch under projections 79 on the uprights c of the lifting-bar, and raise the latter, which, acting under the lips h, lifts the presser-feet from the material, the presser feet not rising until after the needlesare free from the material, and descending to bear down on the material in advance of the needles penetrating the latter.

The advance row of needles I) b are carried by slotted sliding holders G, on arms or projections on the face of the needle bar D, whereby said needles maybe adjusted in or out, relatively to the back row of needles, and be secured in position by setscrews S. This adjustment provides for varying the pattern.

I claim- 1. The combination, with the ratchets \V W on one of the feed or drawing rolls, of the reversely and reciprocating dogs V V,

the levers Y Y, the springs t t, and the patternwheel U, constructed to advance from opposite sides of its axis, either dog alternately, substantially as specified.

2. The combination, with the same shaft, 1', which carries the feeding-cam or pattern-wheel U, of the second cam X, the lever A, and traversing carriage O, essentially as described.

3. The combination of the partial screw 11" on the shaft 13, the worm-wheel I, the gears R T, and the two cams or patternwheels U X, substantially as specified.

4. The combination of the cams K K, the adjustable bars or levers L L, the rods 9 g, the traversing carriage C, and the needle-bar D, provided with wrists g g, constructed to slide through eyes in the rods 9 g, substantially as feet B, having lips or projections h, of the sliding lifting-bar D, and the needle-bar D, constructed to lift the barl) against the pressure of the springs c, substantially as specified.

7. The combination of the movable carriage O with the series of needles Z) 0, arranged in rows, having the needles of the back row directly in rear of those of the front row, relatively to the feed or travel of the fabric, substantially as specified.

M. A. KING.

Vitnesses:

MICHAEL RYAN, FRED. HAYNES.

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