US456736A

US456736A - schultz

Info

Publication number: US456736A
Authority: US
Publication date: 1891-07-28
Anticipated expiration: 1908-07-28

Description

4 Sheets-Sheet 1.

(No Model.)

L. SGHULTZ. QUILTING MACHINE.

Patented July 28, 1891.

(No Mudel.) 4 sheets-sheet 2.

No. 456,736. Patented July 28, 1891.

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(No Model.) 4 Sheets-Sheet 3.. L. SCHULTZ. QUILIING MACHINE.

No. 156,736` Patented July 28, 1891.

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(No Model.) 4Sheets-Sheet 4.

. CHULTZ.

Q NG MACHINE. No. 456,736. Patented July 28, 1891.

UNITED STATES PATENT OEEIcE.

LOUIS SOHULTZ, OF NElV YORK, N. Y., ASSIGNOR TO THE EXCELSIOR- QUIL'IING COMPANY, OF SAME PLACE.

MACHINE.

PECIFCATION forming part of Letters Patent No. 456,736, dated July 28, 1891.

Application filed October 1 l, 18 8 9.

T0 all whom t may concern.:

Be it known that I, LOUIS SCHULTZ, of New York, in the county and State of New York, have invented a certain new and useful Improvement in QuiltingMachines, of whiclf the following is a specification.

I will describe a quilting-machine embodying my improvement, and then point out the novel features in the claims.

In the accompanying drawings, Figure l is a back view of a machine embodying my irnprovement, certain parts being broken away to economize space. Fig. 2 is a plan or top view of the machine, certain parts being represented in section. Fig. 3 is a transverse vertical section taken at the plane of the doited line x or, Fig. l, and looking in the direction indicated by the arrow which is contiguous to such line. Fig. 4f is a transverse vertical section taken at the plane of the dotted line y y, and looking in the direction indicated by ,the arrow which is contiguous to such line. Fig. 5 is a horizontal section of a portion of the machine, taken at the plane of the dotted line Fig. l. Fig. 6 is a transverse vertical section corresponding generally to Fig. 4, but illustrating a modified construction. Fig. 7 isa section ofthe parts illustrated in Fig. 6, taken at the plane of the dotted line w w, Fig. 6. Fig. 8 is a face view of a piece of quilted fabric which may be worked in this machine.

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

A designates the bed of the machine. As here shown, it is supported on legs A. On the bed is mounted a table A2, the latter being slightly elevated.

B B2 designate two side frames secured in the present instance to the table A2 by bolts orotherwse to occupy parallel positions. 3etween them extends a cross-bar or stretcher It is obvious that the table A2 can be` dispensed with if the side frames B B2 are extended downwardly to connect with the bed A.

C designates the needle-bar. This has secured to it a series of needles O', which, in the present instance, are arranged in two rows, so that the needles of the second row will be behind those of the first row and opposite the Serial No. 326.671. (No modeL spaces between those of the first row. This arrangement of the needles maybe understood by reference to Figs. .l and 3, where some of the needles are represented, and it also may be understood by reference to the zigzag row of circles, which in Fig. 2 represent holes in the cover of the shuttle or loop chamber.

Secured to the needle-bar are a number of upright rods c, which work vertically within brackets b, attached to the front of the bar C, and are connected at the upper end by links c with arms c2, affixed toa rock-sl1aftO2. On the rock-shaft are other arms c3, and these are connected with rods c4, secured to a presserfoot bar. The rock-shat`t is oscillated by means of a rod O3 deriving motion from a crank c4, arranged upon a shaft D. It will be readily understood that the rcckshatt imparts a vertically-reciprocating motion to the needle-bar and needles. The needles in this machine have only an up-anddown movement.

In the machine is included shuttle mechanism, and E designates the race-bar therefor.

In the present example of the improvement the fabric to be quilted is fed lengthwise under the needles, and also moved laterally. Rollers F F2 serve to move it longitudinally. These rollers are supported in a carriage G G2 G3. frames G G2 and rods G3 securing them together. It is free to move in any direction in a horizontal plane. As shown, these side frames G G2 have secured to them rollers R', extending widthwise of thc machine parallel with the needle-bar, and journaled in brackets fastened to the lower extremities of the Side frames. Beneath these rollers R' are pairs of rollers R2,extending forwardly and backwardly of the machine and journaled in brackets secured to the bed A. The rollers R rest upon and are supported by the rollers R2. It will readily be understood that the rollers R may roll upon the rollers R2 in the direction of the axes ot lthe latter, so as to enable the carriage to move backwardly and forwardly, and that the rollers R2 can rotate under the rollers R', to enable the carriage to move laterally, or, in other words, lengthwise of the needlebar. Thewfeed-roller F is This carriage consists of two side i IOS journaled in the side frames G G2 of the carriage. Theroller F2 is journaled in levers G4, which are fulcrumed between their ends by pins or bolts g to the side frames G G2 of the carriage. At the rear ends the levers G4 are connected to springs G5, attached to screws G, engaging with upright bars fast.- ened to the side frames of the carriage. These springs force the roller F2 with greater or less pressure toward the roller F.

The fabric to be quilted is at first rolled o'n a roller R, attached to the carriage. Thence it is drawn by the feed-rollers over an apron P, extending beneath the needles and attached to the carriage.

The feed-rollers F F2 are geared together by gear-wheels f, affixed to their journals at one end. To the rollers F is affixed a gearwheel f2. The gear-wheel f2 derives motion from a gear-wheel f3, affixed to a shaft F, which is supported at one end in the side frame B2 of the carriage. l

The shaft F does not partake of the lateral movement of the carriage. Hence there must be a relative sliding movement between it and the carriage. Because of this the vgear-wheel f3 is to be secured to the shaft F by means of a spline or feather and connected to the bearing of the carriage receiving the shaft F, so that the gear-wheel will move with the carriage and have a sliding movement relatively to the shaft F. The shaft F is connected by a universal joint f4 to a shaft F4. rIhis shaft F4 is supported in bearings f4", supported by the bed A of the machine.

Owing to the universal joint between the shafts F and F4, the carriage is able to move forwardly and backwardly. It is therefore possible for the carriage to move in any and all directions in a horizontal plane without interfering with the transmission of rotary motion to the feed-rollers. The shaft F4 has affixed to it a gear-wheelf, deriving motion periodically from a tooth ed segment f7, affixed to a shaft F5. This shaft F5 is supported in one of the bearings On this shaft F5 is affixed a bevel gear-wheelf44, which engages with a bevel gear-wheel f42, affixed to an upright shaft F, journaled in a bracket flo, erected on the bed A. The shaft has affixed to it a worm-gear fw, which derives motion from a worm f44, affixed to the driving-shaft D. The shaft F5, therefore, moves constan tl y with the driving-shaft. It transmits motion to the shaft F4 and thence to the feed-rollers periodically,owing to the fact that no motion is transmitted to the shaft F4 except when the toothed segment engages with the gear-wheel f6. On the shaft F4 is affixed a lock-wheel fm, coacting with a stop fiange or disk fg, affixed to the shaft F45. The stop flange or disk ff is circular in form, but has a notch or opening iu its periphery. Except when this notch comes opposite the lock-wheel f4", the stop flange or disk engages with the lock-wheel f45 and holds the latter against rotation.

sense Vhile the shaft F4, carrying this lock-wheel, is thus held against rotation the feed-rollers are precluded from rotating. One end of the notch or opening in the stop fiange or disk one end lof the toothed segmentj1T enters into engagement with the gear-wheel f on the shaft F4, and the notch or opening is not carried beyond the lock-wheel until after said toothed segment has gone out of engagement with the wheel f6. It follows, therefore, that the stop liange or disk locks the shaft F4 and thefeed-rollers at all times, except when the toothed segment f7 engages with the wheel f to rotate the shaft F4 and the feed-rollers. On one of the journals of the roller F maybe affixed a pulley H to enable the roller to transmit rotary motion to a roller upon which the completed fabric will be taken up or wound. I-Iaving now described the mechanism by 'which rotary motion is imparted to the feedrollers and explained the motions imparted to which are here employed for producing the motions to the carriage.

I designates an upright shaft supported from the bed A and having affixed to it a cam I. This cam operates in conjunction with two bars or plates I2 I3, fitted to slide in bearings and provided with bowls or rollers The bar or plate I2 is connected to a bar G7, secured to the carriage G G2 G3 by means of a bolt engaging in a slot in said bar,and this bar or plate extends lengthwise of the machine. It will be obvious that the carriage will be moved laterally by the action of the cam I upon the bar or plate I2. The bar or plate I3 is provided with a toothed rack t3, which engages with a toothed segment I5, affixed to a shaft I4, journaled in bearings supported by the bed A. The shaft I4 has affixed to it two toothed segments I5, and these engage with toothed racks IG, secured to the carriage G G2 G3. It will be obvious that whenever the cam I imparts a movement to the bar or plate I2, this motion will be transmitted to the carriage and will cause the car riage to move backward and forward.

The cam I', it will be seen, serves to produce a movement of the carriage in two different directions, and these combined movements will result in a movement of the carriage in a circular or other sinuous path. By varying the cam the movement of the carriage will be varied. It will be seen that the cam is stepped and that the bars or plates 1213 are longitudinally slotted to embrace the shaft I. The stepping of the cam is not, however, essential and the bars or plates may be made differently. The shaft I is shown as having affixed to it a gear-wheel i444, which engages with a worm f25, affixed to the shaft I).

I have now explained the motions of the feed-rollers and the movements of the carriage necessary for the production by each needle of a circle of stitching. I willnow describe a mechanism whereby the operation of the carriage, I will now describe the meansv comes opposite the lock-wheel f15 just before Y IOO the needles and shuttle will be temporarily suspended to enable the fabric to be fed a certain distance preparatory to the quilting upon is connected by a link j with an arm J 3, affixed to a rock-shaft j', which is j ournaled in brackets or stands erected upon the bed A. The rock-shaft has atlixed to it arms J4, which are provided with bowls or rollers entering a circumferential groove in a sleeve J 5, which fits upon the shaft D This sleeve is free to be moved lengthwise of the shaft D; but it is locked to rotate with the shaft D by means of a feather or spline. This sleeve has affixed to it one part of a clutch. In the present instance it is shown as having the female part J6 secured to it. The other part J7 of the clutch is secured to the shaft D The clutch may be of any suitable construction. In the present instance the female part consists of an infernali y-conical Han ge, and the male part is circumferentially conical to engage with said flange. The male part is shown as being provided with a projection f, arranged in such position that on the rotation of the driving-shaft D after the engagement of the two parts of the clutch it will encounter the shoulder of a projection j, with which the female part is provided'. The object of these projections is to insure the positive engagement of the driving shaft D with the shaft D. Lest the purpose of this clutch is not apparent, I will explain that whenever the parts of feed from the front to the back of the machine,

pivotally connected a rod K.

which is indicated by the straight full lines in Fig. 8. It will be understood that the cams J J 2 effect the disconnection of the shaft D from the driving-shaft D once in every rotation of the upright shaft F, which carries the cams. To one of the arms J 4, which serves to effect the shifting of the female clutch Ji, is The rod K is pivotally connected to the upper end of a lever K', which is fulcrumed at the lower end to a stand K2, erected on the bed A. The upper end of this lever K is forked to embrace the hub of a non-rotary disk Ki", fitted to slide lengthwise of the shaft D. The lever K may connect with the hub of the disk K'" by means of pins extending from the lever into cavities or recesses in the hub of the disk. The disk K3 has in its periphery a recess, into which extends the end of a rod 15, whereby the disk will be prevented from rotating. The recess is sufficiently long in the direction of the axis of the shaft D to allow of the necessary sliding movement of the disk axially of said shaft.

It will be seen that whenever the arms J 4 move the female part of the clutch away from the male part the disk K3 will be correspondin gly shifted toward a disk K", which is aflixed to the shaft D to rotate with it. The disk Kg on the side next the disk K4 is preferably faced with leather, as its purpose is to act as a brake or stop for the shaft D. On the disks K3 K4 are shouldered projections l 2, similar to the projections jj, heretofore described. They will prevent any slipping of the disk K4 relatively to the non-rotary disk K3 after the disk K'i has in rotating assumed a certain relation to the disk K3, but it is intended that the brake Ki5 shall previously thereto have gradually arrested the rotary movement of" the disk K4 and shaft D.

The driving-shaft D', it will be noticed, is provided with fast and loose pulleys. On the shaft D is loosely mounted an arm L, carrying a pawl L', which operates in conjunction with a ratchet-wheel L2, affixed to said shaft D. By oscillating the arm L the shaft D may be rotated by hand to adjust it in any desired position.

As shown in Figs. 6 and 7, the toothed segment f7, from which the intermittent rotary motions of the feed-rollers are derived, has that one of its teeth t which enters the IOC gear-wheel f6 made capable of yielding, so

that if it should not enter properly it would be free to yield and move gradually into proper position without suffering injury. rlhis tooth t is provided with a bifurcated shank embracing the body or disk of the segment f7 and extending radially thereon. The two arms of this bifurcated shank preferably fit in grooves formed radially in the body or disk of the segment f7. This tooth is capable of moving in a radial direction inwardly and outwardly. Its outward: movement is limited by a stop-pin t', which is secured to the body or disk of the segment f7, and extends in the path of a projection t2, with which one of the arms of the bifurcated shank of tooth t is provided. A lever t3, fulcrumed between the ends by a pin or screw t* to the body or disk of the segment f7, is at one end i pivotally connected with the shank vof the tooth t, and at the other end is connected with a spring The spring t, acting through the lever, tends to force the tooth t outward. The tooth t may, however, move inward against the resistance of the spring. Preferably there will be a lever t3 and spring t5 on each side of the body or disk of the segment f7, and combined with each one of the bifurcated arms of the shank of the tooth t.

I have other applications for Letters Patent, Serial Nos. 327,096 and 327,451, showing some combinations of parts which are herein i represented and not herein claimed. I there- IIO fore reserve the right to claim in the other applications the novel features not herein claimed.v J

In an application, Serial No. 312,601, filed 5 May 29, 1889, I have shown, described, and

claimed feed-rollers supported by a carriage and operated so as to remain stationary during the movement of the carriage and to rotate While the carriage is at. rest; and I have 1o also shown, described, and claimed in said application the specific mechanism for im- Y...parting the requisite movements to the carriage and feed-rollers. Such parts are shown and described, but not broadly claimed, in

ythis application.

2o in a circular or similar path, bars or plates arranged at an angle to each other and connected with the carriage, a cam operatingwith said plates for imparting the said movement to the carriage, a rotary shaft mounted on a stationary part of the machine and carrying said cam, and feed-rollers operating to move material when the carriage is at rest, substan-I tially as speciiied.

2. In a sewing-machine, the combination of 3o a carriage formoving material to be stitched in a circular or similar path, a cam I', bars or plates I2 I3, a shaft oscillated bythe bar or plate 13, and arms on the said shaft impart-I ing motion to the carriage, substantially as specified.

3. In a sewing-machine, the combination of a carriage for moving material to be stitched carriage, a bar or plate I2, actuated by the...Y

cam to impart motion to the carriage in one direction, a bar or plate I3, also actuated by the cam,and a rotary shaft for imparting motion to the carriage in the other direction, substantially as specified.

5. In a sewing-machine, the combination, with a series of needles, of a carriage movable in a circular or a similar path., feed-rollers journaled in the carriage, a horizontal shaft imparting motion to the feed-rollers, and a rotary segment, provided with, a yielding tooth, for driving this shaft, substantially as specied.

6. In a sewing-machine, the combination, with a series of needles, of a carriage movable in a circular or a similar path, feed-rollers journaled in the carriage, a horizontal shaft imparting motion to the feed-rollers, arotary segment provided with a radially-yielding tooth, and a spring impelling the tooth outwardly, substantially as specified.

LOUIS SCHULTZ.

Vitnesses:

C. R. FERGUSON, WM. M. ILIFF.