US1538234A - Take-up mechanism for looms - Google Patents

Description

May 19, 1925.

W. E. BEASLEY TAKE-UP MECHANISM FOR LOOMS Filed Nov. 1'7, 1922 2 Sheets-Sheet 1 ATTORNEY May 19, 1925. 1,538,234

W. E- BEASLEY TAKE-UP MECHANISM FOR LOOMS Filed Nov. 17, 1922 2 Sheets-Sheet 2 a m BYJWW ATTORNE Y 'P a tented May 19, 1925.

UNITED STATES 1,533,234 PATENT OFFICE.

j WILLIAM E BEAsLEY, or GREENVILLE, SOUTH cARoLINA, ASSIGNOR 'ro DRAPER CORPORATION, or-nornnALE, IIAssAcIIUsE'r'rs, A CORPORATION or MAINE.

TAKE-UP MECHANISM FOR LOOMS.

Application filed-November 17, 1922. Serial No. 601,598.

To all whom it may cmwem:

Be it known that I, WILLIAM E. BEASLEY, I a citizen of the United States, and resident of Greenville, in the county of Greenville and State of South Carolina, have invented an Improvement in Take-Up Mechanisms for Looms, of which the following descrip; tion, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to take-up mecha nisms for looms through the instrumentalities of which the cloth is taken-up as it is woven.

It is now the general practice to lead the cloth over atake-up roll which is driven through a train of mechanism from a goin art of the loom and wind it upon a clot earn as it is woven. Between the take-up roll and the warp let-off mechanism the warp threads and cloth are held under sufiicient tension to present the fell of the cloth in proper relation to the beat-up. action of the reed and as an element to this I end the take-up roll is usually provided 4 with a roughened surface which ips the cloth as the roll is slowly rotateg by the positive action of the train of take-up mechanism in timed relation to the'cloth production. It happens at times that the take-up action or pull of the take-up roll on the cloth becomes excessive due to various causes, such for instance by the cloth, instead of being delivered directly to the cloth beam, becoming wrap ed around the 1 take-up roll or tucked rim or the part of the cloth leading over the take-up roll; In

such instances, regardless ofthe primary cause of such excessive opposition to rota-' 40 tion of the take-up "roll, undue strain is developed in the train of take-up mechanism resulting in someicases in breakage of parts.

One of the objects of the present invention is to'overcome this objection and pro-" vide'a clot-h take-up mechanism which will" automatically relieve the excessive strain and'avoid breakage of parts. *An important a feature of the invention,therefore, consists I mounted on the rotatable shaft lOq The shaftIO is'normally underthe influence of 5 a spring 11 which tends to lift the'rack 6 an v hi) (1 of a give-way-- device which" will become automatically effective" to interrupt the transmission betweenthe take-up actuator and take-up 'roll'when thestrain on the 'f'gagement with the take-up" rol the cloth 4-= which passes between them. i

There is nothing new in this arrangement, 110

transmission mechanism becomes excessive In accordance with the present invention, in the form thereof to be described, when the take-up roll or transmission mechanism is subjectedto such excessive strain that would be liable to cause injury either to the cloth, the warp threads, or transmission mechanism, the give-way device is automatically actuated to relieve the strain, all of which willbe made clear from the follow ing description and accom anying drawings of one good practical orm of the invention.

In the drawings:

Fig. 1 is a perspective view of sufiicient parts of the loom and take-up mechanism to showvthe invention associated therewith and its manner of operation;

Fig, 2 is a side view showin parts of the loom, take-up mechanism, an onegood form of the give-way device in operative and inoperative positions.

The invention is applicable to various types of take-u mechanism many of which are old and well-known, but in the present instance the take-up mechanism comprises a train of gearing between the take-up roll and take-up actuator, and the give-way de-' vice is constructed and arranged to operatively disengage at least two of the gears in the train of gearing when excessive strain in the train'caused by the pull of thecloth or opposition to rotation of the take-uproll approaches a dangerous point.

In the drawing the 100m frame 1 has mounted thereon in the usual bearings,

which are omitted for clearness of illustration, the take-up roll 2, shown in the present instance as provided with a roughened surface. In some cases thetake-up roll may be of'the sand roll type or formed of sheet metal "with portions punched'or'projecting from the roll-to engage the cloth with sufli 96 cient hold to insure proper take-up action. The cloth 4 passes about the. take-up roll and is delivered to the clothbeam '5 upon which it is wound; The cloth beamis shown as driven from the take-up rollagainst 100 1 which it is yieldingly held by a rack 6 movable in the guideways 7, and'provided with teeth 8 engaged by the teeth of a gear 9,

the cloth beam in yielding en- ,"orfagainst and indeed any of the usual means for holding the cloth beam in operative relation with the take-up roll may be employed. The shaft 12 of the take-up roll has secured thereto as shown the toothed wheel or gear 13 which is operatively engaged by an idle gear 14 mounted on a pin or shaft 15 extending from the loom frame 1.

Mounted on a stud or shaft 16 carried by the loom frame is the large toothed wheel 17, which for identification hereinafter may be termed the controller pinion, and it is engaged with the gear 14 as shown, the construction being such that upon rotation of the large toothed wheel 17 or controller pinion, rotative movement will be imparted to the gear 13 in the direction of the arrow to take-up the cloth 4 as it is woven.

The stud or shaft 16 upon which the controller pinion is mounted carries a swing frame 18, the lower portion of which at 19 is provided with a slot through which passes the stud or pin 20 on which are mounted for rotativemovement the two connected gears 21 and 22. By loosening the nut 23 which holds the stud 20 to the swing arm 18, the

gear carrying stud 20 may be adjusted longitudinally of the swing arm 18 towards or from the axis of the controller pinion '17, and thereby provision is made for changing the size of the gears 21 and 22 in accordance withconditions of use.

Mounted upon the stud or dead shaft 24 carried by the loom frame is the pick wheel 25 having teeth 26 which are engaged by a push pawl 27, as shown. The push pawl 27- is ivoted at its lower end portion 28 to one of the lay swords 29 carrying the lay 30 which as usual in looms is given a movem'ent towards and from the front of the loom to beat up the filling.

Secured to the pick wheel 25 or associated therewith on the shaft 24 to rotate with the pick wheel is a gear 31 which normally meshes with or is engaged by the gear 22 mounted'on the swing arm 18, and the gear 21 which rotates with the gear 22 meshes with the controller pinion 17, as indicated in Figs. 1, 2.

From the construction described it will be clear that as the pawl 27 rotates the pick wheel step by step during loom operation, movement will be transmitted through the gears 31, 22, 21, and.the controller pinion 17 the idler 14 and gear 13 to the take-up r0 1 2 about which the cloth is passed.

The swing frame 18 is normally under the I influence of a sprin 32, one end of which is connected to the swing frame at 33 and the other end of which is connected to an adjustable pin 34 carried by the loom frame or some fixed part, the construction being such that under the influence of the s ring 32 the swing frame 18 will be yieldlngly forced in a direction to maintain the gear will be operatively rotated to transmit motion from the pick wheel 25 through the train of gearing to the take-up roll.

The swing frame 18 is provided with a stop to limit movement of the swing frame under dictation from the spring 32. In the present instance the swing arm has a lug 35 extending laterally therefrom and an adj ustable screw 36 is threaded through the lug to engage the loom frame or a part carried thereby. It is desirable that the adjusting screw 36 be adjusted in such position that when the teeth of the gear 22 are engaged with the teeth of the gear 31 that the stop will act to limit further strain upon the gear teeth of the two gears.

In take-up mechanisms for looms it is usual to provide an actuator for the take-up mechanism and a train of gearing between the actuator and the take-up roll. The character of the actuator and its construction varies in different looms, and any oneof the different types of actuators for the take-up may be employed in connection with the present invention. In the present instance, however, the actuator is shown as the pawl 27 operated from one of the lay swords and a holding pawl 37 is employed to prevent backward movement of the pick wheel 25 when the pawl '27 makes its idle stroke.

When theloom is running under normal conditions and the cloth is being taken-up properly as it is woven, the parts, are in the position shown by Fig. 1 and by full lines in Fig. 2. When, however, the strain on the cloth becomes excessive or opposition to rotative movement of the take-up roll becomes excessive from any cause, it will act through the gears 13.and 14 to retard or stop rotation of the controller pinion 17, but since the actuator for the take-up mechanism continues' in operation, the gears carried by the swing arm 18 will continue to rotate in the direction of the arrow, Fig. 2, and the teeth of the gear 21 will act through the teeth of the now stationary controller pinion to cause the gear 21 to travel along the periphery or teeth of the controller pinion and perforce to carry the teeth of the gear 22 out of operative relation with the teeth of the gear 31, as shown by the dotted lines in Fig. 2, and thus interrupt the transmission through the train of gearing to the take-u roll. When the loom attendant has reme ed the fault which imparted excessive opposition to rotative movement of the take-up roll so that the controller pinion becomes free to rotate, the spring 32 will act through the swing frame 18 to carry the gears 22, 31 into operative relation and the take-up mechanism will then continue to operate.

It will be noted in the present instance of the invention that the transmission gearing engagement with the transmission gear due,

- said train ofroll its ta e-up movement, but when excessive" resistance is offered to rotation of the take-u roll, the give-way device ,will auto= matica y interrupt the transmission of movement to the take-up roll, and when the defect has been cured W111 automatically return the Parts to operative relation without danger o breakage of parts or injury to the cloth or warp threads.

- What is claimed is:

1. In a take-up mechanism for looms, the combination of the cloth take up roll for taking up the cloth as it is woven, a control- ,ler gear operatively connected to the take-up roll for actuatingthe latter, an actuator, a

, transmission gear constantly driven therefrom, a glve'wa gear meshing with the controller gear an normally engaged with the transmission gear, and means for yieldingly supporting the give way gear that it may move about the controller gear. and out of to its rotation thereby when the controller gear is arrested by undue strain upon the cloth during weaving. I

2. In a 100111, the combination of the cloth.

take-up roll, acloth beam frictionally driven (by engagement of the take-ugegoll with the cloth wound upon the cloth m, an actuator, a train of gearing between the actuator and cloth take-up roll includin aswinging gear for causing the take-u ro to take u the cloth as .it is woven, an means rende automatically eifective by undue strain in aring during weaving for moving the swinging gear into an inoperative position that the take-up roll may remain at rest while the loom continues to run.

3. In a loom, the combination of the takeup roll, an actuator, a train of gearing between the take-up roll and actuator, and a give-way device consisting of a pair of gears normally maintained in mesh with each other and one of which is mounted to move "out of mesh with the other gear automati 'cally by undue strainin the gearlng between the actuator and take-up roll foroperatively disconnecting the take-up roll from the actuator.

4. In. a loom, the. combination of the cloth take-up roll for taking up the cloth as it is woven, anactuator, a train. of gearing between the take-up roll and actuator for causing rotative movement of the take-up roll during weaving, a give-way device in the train of eari yielding means normally acting to old t e give-wa' device in oper-.

ative position and adapt to be overcome by an abnormal pull of the cloth that the give-way device m y operatively disconnect two gears of the train automatically while the loom continues to run; 1

5. In a take-up mechanism for looms, the

' take-u throng said train of gearing, and means'for combination of the take-up roll about which the cloth is passed,.'a trainof gearing 0 er- ,atively connected to the take-up ro a supporting one of the spring enga rs and constructed and arranged to p r ifihe spring engaged gears to automatically become gfieratively by an a normal p of the cloth whlle the looin contlnues to run. Y

6. In a take-upmechanismfor looms, the combination of a take-up roll for taking up the cloth as it is woven, an actuator, a train of rin between the actuator and take-up rol including transmission gearin normally held'in operative relation with t strain of gearing until the pull of the cloth becomes excessive, and a springwhich yields when the pull of the cloth becomes excessive to permit one of the gears of the train of gears to move out of operative engagement with 'the gear with a give-way device comprising.

which it normally oo-operates while the Y 8. In a take-u mechanism for looms, the combination oft e take-up roll, an actuator, a train of gearing between the take-up roll and actuator, a swinging 've-way carrier on which a gear of the train is mounted, a spring w 'c normally acts to l1o1d this swingmg carrier with its gear in meshwith other gears of the train and yieldable when excess ve resistance to rotation is encountered by the gears between it and the take-up roll that the gear of the swinging carrier.

may automatically cause the carrier to move about its axis and interrupt the train of gearing;

.9. In a take-up mechanism for looms, the combination of t e take-up roll, an actuator, a train of gearing between the take-up roll on which a' gear of the is mounted, a stop for limiting the movement of thecarrier'in onedirection, a spring which normally acts to hold theswingin'g carrier with its gear in mesh with other gears of the train and actuator, a swinging give-way carrier and yieldable when excessive resistanceto rotation is encountered by the gears between it and the take-up roll that the gear of the swinging carrier may automatically cause the carrier to move about its axis and interrupt the train of gearing.

10, In a take-up mechanism for looms, the combination of the take-up roll, an actuator,

a train of gearing between the take-up roll.

and actuator, a movable carrier on which a gear of the train is mounted to be moved by the carrier into and out of mesh with the ear with which it cooperates, and means or yieldingly holding the carrier in position to maintain the gears meshed but movable to disengage the gears when excessive resistance to rotation of the take-up roll is encountered.

11. In a take-up mechanism for looms, the combination of the take-up roll, an actuator, a train of gearing between the take-up roll and actuator, a movable carrier on which a gear of the train is mounted to be moved by the carrier into and out of mesh with the gear with which it cooperates, and means for yieldingly holding the carrier in position to maintain the gears meshed but movable to disengage the gears when excessive resistance to rotation of the take-up roll is encountered, and a stop for limiting the movement of the carrier in the gear meshing direction.

In testimony whereof I have signed my name to this specification.

WILLIAM E. BEASLEYQ

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