US375135A

US375135A - Circular loom

Info

Publication number: US375135A
Authority: US
Publication date: 1887-12-20
Anticipated expiration: 1904-12-20

Description

,"1 (N0 Model.) 5 Sheets-#Sheet l.

A. DE LASKI.

CIRCULAR LOOM.

No. 375,135. Patented Deo. 20, 1887.

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(No Model.) 5 Sheets-Sheet 2. A. DE LASKI.

CIRCULAR LOOM.

Patented Dec. Z0, 1887.

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' CIRCULAR LOOM. No. 875,135. Patented Deo. 20, 1887.

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A. DE LASKI.

CIRCULAR LOOM.

No. 375,135. Patented Dec. 20,

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(No Model.) 5 Sheets-Sheet 5.. A. DE LASKI.

CIRCULAR LOOM.

S E S S E N T W me n rw S UNITED STATES PATENT OFFICE.

ALBERT DE LASKI, OF LYNN, MASSACHUSETTS.

CIRCULAR LOOM.

SPECIFICATION forming part of Letters Patent No. 375,135, dated December 20, 1887.

Application filed Octoberl, 1885. Serial No.179,960. (No model.)

To @ZZ whom it may concern.-

Be it known that I, ALBERT DE LAsKI, of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Circular Looms, of which the following is a specification.

This invention consists in ccrtain'improvements in circular looms relating to the means for impelling the shuttles, the heddle motion, and other details, all as described and claimed hereinafter.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a vertical central section of portions of a circular loom, showing the shuttle-operating mechanism, the heddles and a part of their operating mechanism being omitted. Fig. l represents a section on line x,Fig. l. Fig. 2represents a top View of a part of the shuttledriving mechanism. Fig..3 represents atop view, partly sectioned, of a portion of the loom, showing the heddle-operating mechanism,cer tain features being omitted for the sake of clearness. Fig. 4 represents a section on line xx, Fig. 3, looking toward the right, Fig. 5, a side view of the parts shown in sectional end elevation in Fig. 4, excepting the beam. Fig. 6 represents a side elevation ofthe feedrolls and their operating mech anism,wi`thparts of the supports for the latter in section. Fig. 7 representsa section on line y y, Fig. 6, looking toward the left. Fig. 8 represents a top View, and Fig. 9 an end view, of the feed-rolls and connected parts. v

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents the circular track or race on which the shuttles b move. Said track is supported by vertical standards c. Each shuttle consists of a frame, 2, abobbin,5, journaled in said frame, and wheels 3 34, adapted to run on the circular track a, the wheels 3 Sat the outer side of the carriage being larger than the wheel 4 at the inner side. The weft thread from the bobbin 5 passes through a tubular guide, 6, inthe inner side of the shuttle-frame, and therefore acts to hold the inner side of the shuttle down upon the track a. The tubular guide 6 also forms the journal for the wheel 4.

Each shuttle is driven by means of a frictionwheel, d, which is rotated while in contact with one of the wheels 3, and is moved over the circular track a, so as to impart a continuous movement to the shuttle, each Wheel d having a planetary motion. The arbors e, to which the wheels d are affixed, are journaled in bearings in arms f, radiating from ahead, i, which is journaled in a frame or spider, g, supported by the standards c c. Said head is provided -with a bevel-gear, 71with which meshes asi milar gear,j, on a driving-shaft, Za, the headi being thus rotated and caused to carry the frictionwheels around over the circular track. The friction wheels are positively rotated while they are being thus carried over the track by means of bevel-gears Z Z, affixed to the arbors e e, and a bevel-gear, m, affixed to the frame or spider g. The progressive circular movement imparted to the arbors e e by the rotation of the head t', in connection wit-h the gears Z Z and fixed gear m, causes the arbors and their friction-wheels to rotate. The arm f has a loose pulley, da, which runs on one of the outer wheels, 3, of the shuttle. (See Fig. 2.)

The described mechanism for impelling the shuttles constitutes an important part of my invention, and is distinguished from mechanism heretofore used for the purpose by its simplicity and freedom from liability to derangement andbreakage. rotates the arbors of the friction-wheels, is located between said wheels andthe center, about which they move on the track, the arbors extending inwardly from the friction-wheels.

Heretofore in this class of looms -said arbors have extended outwardlyfrom the frictionwheels and'have been rotated by a large fixed gear surrounding the space in which the friction-wheels were located. Said arrangement involves much greater friction between the fixed gear and the gears on the arbors, as well as greater liability of breaking the teeth of said gears than is met with in my improved loom.

The warpth reads pass from a series of beams, e', journaled in bearings on the supportingframe through guides o3,` and from thence through the heddles to the-central tube, wh ere the warp and woof threads are interwoven to form the tubular fabric, the latter being drawn through the tube by suitable means,as hereinafter described. The shuttles pass, as usual, through the shed formed by the raised and depressed woof-threads,the wheels ofthe shuttles, passing over the depressed threads, while the The fixed gear on, that` TOO raised threads pass between the frictionwheels and the shuttle-wheels, as shown in Fig. 1.

The heddle-frames o o are arranged in pairs and in a circular series, as usual, and move on vertical rods q q, affixed to the supportingframe. The lower' portions of the heddleframes in each pair are connected by straps or chains 29 p, passing around loose pulleys r, which, with their supporting-brackets S S, are vertically adjustable. Such adjustment is secured by providing each bracket with an eX- ternally-threaded depending spindle, S,which engages a vertically-threaded recess in a socket, Si, secured to and projecting from the heddle-framc supports. A nut, S3, engages the projecting portion of each spindle S' and locks it in its adjusted position.

The upper portions of the heddleframes of cach pair are connected by chains t t, passing over and engaged with sprocket-wheels u on arbors o, jonrnaled in bearings on the supporting-frame. Said arbors are rocked or rorated alternately in opposite directions by means of reciprocating. racks iv, fitted to slide in guides on the frame, and pinions a, affixed to the arbors c. The racks w are provided with extension-bars w', having studs or rollers b on their inner ends entering a grooved cam, c', affixed to the head z". Said'cam is formed so that when it is rotated it simultaneously retracts the racks at one side and projects those at the opposite side, as shown in Fig. 3. The movements thus imparted to the racks w and arbors o cause the sprocket-wheels n and chains t to reciprocate the heddles, the hed` dles of each pair being moved simultaneously in opposite directions, as usual. The ends of the wires of the heddles are inserted in slots d d', cut in the heddle-frames, said slots being made in two series, as shown in Fig. 5.

Each beam c that supplies the warp-threads is provided with a brake composed of a cord, f, secured at one end to the frame and passed around the end of the beam, its other end being attached to a rod, r/, which is pressed by a spring, h, so as to cause the cord f to bind upon the periphery of the beam end. The woven tubular fabric is grasped and drawn along, so as to keep the proper tension on the warp-threads, by means of rolls 72, 71,', journaled in bearings t" and driven by a connection with the driving-shaft 7c, said connection being shown as abevel-gear, k', on the shaft k, a vertical shaft, Z', having a bevel-gear, m', meshing with the gear 7c", a horizontal shaft, m", connected by gears a o with the shaft Z', and the gears p Q i", whereby motion is communicatcd from the shaft mi to the arbor of one of the rolls h', the arbors of the two rolls being connected by gears s.

The gear p is mounted on shaft mi. The gear q is'mounted on a stud on a lever, t', pivoted to said frame, so that it can be moved to throw the gear q into and out of engagement with the gear o".

By reference to Fig. 7 it will be noted that t? designates aslotted arm extending integrally from the lever t', and the said arm and the slot therein are curved concentric with the pivot of the lever t. One of the frame-supports is provided with an arm, t5. rlhe lever-arm is designed to move in close proximity to the arm t5, so that a bolt, t, on the latter will play along the curved slot in the arm t2 as the levert is raised or depressed. A nut, t4, engaging the threaded end of the bolt, is designed to rigidly lock the bolt t3 at any desired point along said slot, so that the levert may be rig idly secured in any position to which it may beY moved. By such construction the gearwheel q may be rigidly locked in engagement with the gear-wheel r. The gear r is pro- -vided with a hub, o', adapted to slide on the arbor a2 of one of the rolls 7L. One end of said hub is formed as a clutch member to engage a corresponding member, b2, aiiixed to the arbor a2. A spring, ci, normally holds the two members in engagement, as shown in Fig. 6. A lever, d2, Jivotcd at c2 to the supporting-frame, is engaged with the hub of the gear i" by means oi" rollers on the lever entering a groove in the hub, Fig. S, so that a movement of the lever against the pressure of the spring c2 will separate the clutch members, and therefore stop thel rotation of theiolls h. Ahandwheel, g2, is attached to the arbor a2, so that the rolls can be rotated by hand when. desired. W'hen this is done, the gear q is thrown out of engagement with the gear fr by means of the lever t'.

The rolls 7i are grooved at kiki, said groove receiving the edges of the flattened woven tube which passes between the rolls, sothat said edges are not creased by the rolls.

One of the principal uses of my improved loom is to weave a covering upon a tube of rubber `which lis passed through a tubular guide, a3, within the head i and a tubular weaving-pin, bi, secured to the lower end of said guide.

To guide the rubber tube and prevent it from twisting I provide at a suitable point within the tubular guide or within the weaving-pin (preferably the latter) a guide or projection, c3, which causes'the rubber tube ea to assume a horseshoe form in crosssection before it enters the tubular woven covering.

It will be seen that the guide or projection c3 prevents the tube from turning or twisting, and thus insures its deliveryin a straight condition into the woven covering. The tube is subsequently expanded by steam and caused to adhere to the woven covering.

1. The combination of the circular track a, a shuttle adapted to travel thereon, outer wheels, 3 3, on said shuttle, and inner wheel, 4, all of said wheels bearing directly upon the track, a head, t', gearing for rotating thesame, a horizontal radial arm, f, an arbor mounted in bearings in said arm, gearing for rotating said arbor from the rotary movement of the head, and a friction-wheel, d, located on the IIO outer end of the arbor and bearing directly upon the periphery of one of the Wheels 3, and a second friction-wheel, d3, mounted on the arm f and bearing directly upon the periphery of the other wheel 3, substantially as set forth.

2. The combination of, the heddle and heddle-frames and the heddle-operating mechanism, consisting of the arbors connected, as described, wth the heddle and heddle-frames, and provided with pinions, the radiating racks engaged with said pinions, and the cam and means for rotating it, whereby said racks are reciprocated, as set forth.

3. The combination of the circular track a, a shuttle adapted to travel thereon and provided with a wheel, 3, on its outside and with a'tubular guide, 6, on its inner side, a Wheel, 4, mounted on said guide, a head, z', gearing for rotating said head, and devices for driving said shuttle from said head, substantially as set forth.

4;. The combination, with the race, shuttle, heddles, heddle-frames, beams, and operating devices for said shuttle and heddle-frames, of a tubular weaving-pin, b3, having an internal projection, a pair of horizontal rolls for receivingV the fabric from said weaving-pin, gearing for driving said rolls to feed the fabric, a gearwheel mounted on the shaft of one of said rolls,

and a clutch device for permitting the engage'- m heddles, heddle-frames, beams, and operating devices for said shuttle and heddle-frames, of a tubular weaving-pin, b3, having an internal projection, a pair of horizontal rolls geared together and receiving the fabric fromsaid weaving pin, a drivinggear, r', a driving 4means, a lever, t', provided with a gear-wheel, q', rotated by said driving means and adapted to be moved by said lever into and out of mesh with the wheel r', and devices for locking said lever in an engaged or disengaged position, substantially as set forth.

6. The combination, with a weaving-pin, b internal projection, c3, therein, and devices, substantially as described, for weaving a tubular fabric, of a pair of feed-rolls adapted to receive a tubular fabric and provided with peripheral grooves to accommodate the edges of said fabric, substantially as set forth.

7. The combination, with atubular weaving pin or guide, of devices, substantially as described, for Weaving a tubular fabric at the end of said pin or guide, and an internal projection located on one side in said pin or guide for bending the woven tube, substantially as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 6th day of October, 1885.

Witnesses:

C. F. BROWN, H. BROWN.