US951451A - Circular loom. - Google Patents

Description

A. PETERSEN.

CIRCULAR LOOM.

' APPLICATION FILED MAY 12, 1908. 951,451 I Patented Mar. 8, 1910.

4SHEETS-SHEET 1.

Patented Mar. 8, 1910.

LEEIHTS-SHEET 2.

wem cf Mar I 7 887 \5 w @ses:

A. PETERSEN.

CIRCULAR LOOM.

. APPLICATION FILED MAY 12, 1908.

v Patented Mar. 8, 1910.

4SEEETS-SHEET 3.

' A. PETERSEN.

UIRGULAR LOOM. APPLICATION FILED MAY 12, 1908.

Patented M21118,- 1910.

4 SHEETS-SHEET 4.

unrrnn sirArEs PATENT" ormon.

ANKER PETERSEN, or CHELSEA, MASSACHUSETTS, nssrenon r rnn PETERSEN CIRCULAR LOOM COMPANY, or BOSTON, MASSACHUSETTS. A conronnrron or CIRCULAR LOOM.

Specification of Letters Patent.

1 '0 all whomtt may concern:

Be it known that I, ANKER PETERSEN, a

' subject of the King of Denmark, and resident of Chelsea, county of Suffolk, State of Massachusetts, have invented an Improvement in Circular Looms, of which the following description, in connection with the accompanying drawin is a specification, like characters on the drawing representing like parts.

This invention relates to circular looms and especially to the take-up mechanism for the cloth and the let-oft mechanism for the warp-threads. The let-oft mechanism comprises let-oft rolls which frictionally engage the warp-threads and the take-up mechanism also comprises a pair of take-up rolls which. frictionally engage the fabric and operate to take it up as fast as it is Woven;

"lhe take-up rolls are positively driven preferabl' by the loom-operating mechanism and t 1e let-ofi' rolls are geared to and operated positively by the take-up rolls so that the warp-threads will be let off at a speed which has a certain definite relation to the speed at which the woven fabric is taken up. By means of this construction the warp threads are maintained under a uniform tension throughout and a better fabric, results.

My present inventionalso co'mprehends a construction by which the take-up and, letofl mechanism may be disconnected from the loom-operating mechanism and operated in either direction by hand.

These and other features of my invention will be more fully hereinafter described and then the novel features of the invention will 5 be pointed out in the appended claims.

In order to give an adequate description of the invention 1 have selected for the sake of illustration the preferred embodiment thereof and have illustrated such embodiment in the co panyi g-drawings Wher 3 i slidably sustained 111 slots 16 formed in the Fig. 1; Fig. 3 is a section on the line aa, Fig. 2, showing the parts more or less diagrammatically; Fig. 4 is a honzontal section on the line 0 0, lfig. 1, said view showing part of the cam ring; Fig. 5 15 a detail or he take up mechanism; Fig. 6 is a section on the line 6-6, Fig. 5; Fig. 7 is a section on the line d-d, Fig. 6.

So far as the main features are concerned, the loom herein illustrated is somewhat similar to that shown in my co-pending application Se. No. 311,846, filed April 16, 1906, and also Similar to the construction shown and described in another co-pending application of mine Se. Nopl32fi89, filed May 12, .1908. The loom comprises the frame 3 ofany suitable or usual construction which supports the heddles 4 through the eyes of oted levers 6 which in turn are operated by a cam groove 60 formed in the driving the shuttles.

atedin any suitable way, and it is herein shown as being, in the form of an internal gear, ithaving on its interior gear teeth v10 Figure 1 is a vertical section through a loom embodying my. invention on substan- E tially the line rr-w, Fig. 2; Fig. 2 is a horizontal section on substantially the line 3 y,

ion 11 carried by the shaft of a motor 120.

Patented Mar. 8, 1910.

or actuator ring 7 that is rotatably mounted onthe support 8 and which operates to drive The support 8 also sustains the annular cloth support 9 at the edge of which the weft is interwoven with the warps. The actuator ring 7 may be oper-" which the warp threads 5 pass. as usual. The heddles are operated by means of pivwhich mesh with and aredrivcn by a pin- The parts thus far described are or may be of any'suitable construction and form no part of my present invention.

As the fabric is formed by the rotary as usual in this class of devices, the woven fabric is drawn down through the circular cloth support 9 bymeans of take-up rolls 1? and 13. These rolls are journals-d in suitable stands 14: secured to the base 98 of the loom stands 14. These take-up rolls have roughened surfaces to form good frictional engagemcnt with the cloth and the latter is i passed underneath the roll 13 then up between the "rolls and over the roll 12, as clearly seen in Fig. 3. In this way the rolls have sufficient frictional engagement with the cloth so that as they are rotated the cloth 1 will be taken up. From the roll 12 the cloth movement of the shuttle through the shed and are preferably geared together so that passes down through an opening 97 in the use a direction roll to base 98 of the loom and thence passes to any suitable cloth roll 90, said base being ele vated slightly from the floor to pernnt the cloth to paw under it as seen in Fig. 1. In the present en'ilnnliinent of my invention I guide the cloth and a sand or other friction roll 95: to deliver the t'l'utli to the cloth roll. The roll 9% is driven by a etu'orlt'et chain 87 from a sprocket wheel at; on the shaft: 5-1.

'lhe take-np roll are preferably driven from the actuator ring 7 which in turn operated by the motor tilt), and to accomplish this; l have elonvu l7 journalerl in uitable bearings sustained by the 'l'raaw which .shal't has at its upper end a gear l8 meshing with and driven by;

the internal gear 10 and at its lower end a pinion it) which meshes with and drives a gear that. is journa led in suitable bearings on the base of the frame. The gear 20 is connected to and drives a worm 531. which in turn meshes with and drives the worm gear 92 fast on the shaft of the roll. 13. The worm :21 and the gear 20 are shown as con' nected together by a sprocket chain 23 which pasmover a sprocket. wheel rigid with the gear itl and also over a sprocket wheel on the shaft. Lt: of the worm 2]. 'hen the sprocket wheel 35 is locked to the shaft it; a positive driving connection is provided hetwecn the motor 1'20 and the take-up rolls 12 and 1. 3. To n'iaintain the proper tension on the sprocket chain 23, 1 have shown an idler sprocket wheel 27 which sustained. by an adjintahle bracket 28, said bracket being held in its adjusted position on the base by means of screw 12$) passing tl'n'ough a slot therein.

Provision is also made fordisconnecting the take-up rolls: from the actuator ring and for operating said take-up rolls by hand wherever such operation is desired as when the warp threads are being drawn into the loom as the cloth is hein removed, etc. As

(meconvenient way of :neeoinplishing this I make the sprocket wheel loose on the shaft iii and provide said shaft with another sprocket wheel :50 loose thereon which is operated by a sprocket chain 31 which in turn leads around and is operated l. t sprocket wheel 32 on a ltttllthO])UIZtitltl shaft 33 suitably jotnrnaled in hearings in the frame. I A clutch is provitiled for clutching either of't'he sprocket wheels 25 and to the shaft. 2t? according as it is desired to operate the take up rolls by power or by hand. While it is within my invention to employ a clutch of any appropriate type,- ll have herein shown one which comprises a clutch ineinber 3t fast on the shaft 26 and provided with av clutch ar1n'35 which is adapted to engage a notch in the hub of either sprocket wheel 25 or 30 as'desired. This clutch arm is mounted on a rock-shalt 36 jonrnaled in the clutch mema vertically-arranged shaft ber 34 and plays in a slot formed in the periphery of the clutch member. The hubs of the sprocketwheels 25 and 80 are each provided with a notch 37. By turning the rockshaft-3t3 the clutch arm 35 may be swung into eit ter notch 37 thereb) locking either one of the sprocket wheels to the shaft 26. T he i rock-shaft 3G is provided with a crank or offse which acted uponby a spring' l-O, said crank end being so positioned that the spring normally tends to hold the clutch arm into either one of the notches 37. hen it is desired to operate the take-up rolls by hand, the rock-shaft 36 is turned to bring the clutch arm 35 into the notch in the sprocket gear 30, as shown in Figs. 5 and 7. so that said gear and the shaft 26 may he turned by I' aIK IfI-oin the shaft 33 When the clutch arm is in this position the motor is disconnected from the take-up rolls. When the clutch arm is thrown into engagement with the sprocket wheel 25, however, the hand operated shaft 33 is disconnected from tinrolls and the 'motor connected thereto.

The feeding of the warp threads to the heddles is controlled by let-oil" rolls. These let-oil rolls are arranged in sets of two which are supported in suitable hearings around the exterior of the frame. The let-off rolls l of each pai are designated 40 and 41.. Each is sustained 1n suitable brackets pair of rolls 42supported by the uprights d3 of the frame and the rolls of each pair are geared together at 44 so that they rotate in unison. The upper roll 40 of each pair is supported in slotted bearings so that the full weight thereof will rest on the lower roll 41 and both rolls have friction surfaces to provide sufficientfrictional engagement with the.

warp threads to positively feed them as the rolls are turned. The warp threads are arranged to pass up over the upper roll 40 of each pair and then down between the two rolls and under the roll 41 and thence to guide eyes 45, one for each thread, over the annular warp rest 47-between'which and the cloth support 9 the shed is formed. The drawings also show the resilient arms 46 engaging the warp threads, said artns formlng part of, a warp stop motion not hereinshown', butshown fully in my coending application Se. No."482,489, filed lay 12, 1908.

The let-off rolls 41 ra're driven positively from the take-u rolls 12 and 13 so that the two palrs of ro is work in unison and at a.

definlte speed relative to each other. For thus operating the let-off rolls I have herein provided the take-up roll 13 with a gear 50 which meshes with and drives a gear 51 on'a a sprocket wheel 52 which is: connected by a sprocket chain 53 with a sprocket on a shaft 54. The shaft 54 'h'ich is mounted in suitl'io countershaft supported in suitable bearlugs 000, said countershaft having thereon seiner g able bearings 540 in the frame, carries at its end a bevel gear which meshes with and drives a bevel gear 56"on a vertically-arranged shaft 57, This shaft 57 whichis supported in suitable bearings has thereon a bevel gear 58 which meshes, with and drives, a bevel gear 59 on one of the let-oti rolls et-i. Said let-oil roll is thus positively driven from the take-up rolls. The other let-oft rolls are driven from the particular let-oil roll which receives its motion from the shaft 57, and for this purpose each of the let-off rolls 41 has rigid therewith at each end a bevel gear 30 which meshesiwith a corresponding bevel gear on the adjacent end of the adjacent let-off roll. All the letoff rolls 41. are thus geared together and work in unison, and each let-oii' roll 4-1 is geared. to and drivesits companion let-oil roll by means of the gearing l i, asabove described. lVith this arrangement the warp threads are letott at a speed which has a certain definite relation to the speed at which the fabric is made and taken up and the warps, therefore, are entirely under control for their full length between the let-oti' rolls and the point Where they are made into the fabric. Another advantage which this arrangement has that all the warp threadsv are under a uniform tension regardless of the tempeature or humidity of the room; and still another advantage is that the feeding ofthe warp threads into the loom is accon'iplished independently from the warp beams, and it. is, therefore, possible to place the warp beam or warp beams at a distance from the loom. In the present drawilngr the 'warp threads are shown as being led to the loom 1n the form of warp chains 73 which may be taken from warp beams situated at a distance from the l'oom, illustrated in my co-pending application Se. No. 432,489, filed May 1-2, 1908. These warp chains are led down through guides 7 formed on the frame and under guide rolls 75 and 76 to the combs 800' by which the threads are separated before they are delivered to the take-up rolls. This manner of handling the warps, however, formsno part of my present invention, but is described and claimed in my said co-pending application.

It, is desirable to keep the Woven tubular fabric in a flat condition as it is fed to the take-up rolls l2 and 13, and for this purpose I have provided a spreader which is situated within the fabric and acts to fold the fabric flat before it is delivered to the take-up rolls. This spreader comprises two spreader arms '80 which are hung from and pivoted to a sustaining ring 81 that rests on the top of the cloth support; These spreader arms are held in their adjusted position by means of braces 82 which are securedto the sustaining ring 81 and are adjustably secured to the spreader arms. The warp threads pass between the sustaining ring 81 and the cloth support and therefore the sprea'er arms are situated inside ofthe fabric. Th se spreader arms may-be opened out as far as, Y

the size of the fabric will permit, thus .170

stretching and folding said fabric in a fiat condition preparatory to its being fed into the take-up rolls, j

With the mechanism thus described it is possible to feed the warps intovthe loom or 75 withdraw them from the loom by merely turning the shaft 83, for when the clutch member 34- isproperly set, the turning of this shaft operates to positively feed the warp threads and to positively move the 30 cloth either forward or backward and at all times the desired uniform tension on the warp threads and the cloth between the takeup rolls and the let-ott rolls is maintained.

Having fully described my invention, what 35 I claim as new and desire to secure by Letters Patent is '1. In a circular loom, the combination with shedding mechanism and shuttle-operating devices arranged to move the shuttle continuously in the same direction, of warp let-ofi' rolls, cloth take-up rolls, and means to operate one set of rolls from the other.

2. In a circular loom, the combination with shedding mechanism and shuttle-operoperating mechanism, of warp let-off rolls,

cloth takesup rolls, means to operate the take-up rolls from the looin operating mech anism, and means to drive positively the letoit rolls from the take-up rolls. l

4. In a circular loom, the combination with shedding mechanism and means to drive a shuttle continuously inone' direction, of a plurality of connected pairs or" Warp let-off rolls, cloth take-up rolls, and means to drive one of said pairs of let-off rolls fro1n'115 said take-up rolls, the other pairs of let-oil rolls being driven from said first-named pair.

5. In a circular loom, the combinationv with shedding mechanism and shuttle-op crating devices arranged to drive a shuttle continuously in the same direction, of warp let-off rolls, cloth take-up rolls, connections for driving the let-oif rolls from the take-up rolls,'loom-operating mechanism, a handoperated device, and means for connecting the take-up rolls either to the loom-operating mechanism or the hand-operated device.

,6. In a circular loom, the combination with shedding mechanism and shuttle-ophand-o take-up rolls,

crating devices arranged to drive a shuttle continuousl in'the same dlI8CtlOl1,'0f cloth take-up r01 s, loom-operating mechanism, a

erated device, and means to connect i said ta e-u rolls with either the lo'om-opcrating mec anism or the hand-operated de- V100.

7. In a circular loom, the combination .with shedding mechanism and shuttle-operating devices arranged to drive a shuttle continuously in the same direction, of cloth a worm for driving said rolls, two sprocket wheels associated with said worm, hand-0 erated. means to drive one sprocket wheel power-0perated means to dIlWB the other sprocket wheel, and means to I connect either of said sprocket wheels to said worm. i I

8. In a clrcular loom, the combination with a cloth support at the edge of which Within the tubular fabric to spread the latter and fold it flat.

In testimony whereof, I have signed my name to this specification, two subscribing witnesses.

ANKER PETERSEN.

Witnesses: 4

LOUIS 0. SMITH, THOMAS J. DRUMMoNu.

in the presence o'f

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