US1444951A

US1444951A - Loom for weaving terry fabrics

Info

Publication number: US1444951A
Application number: US288701A
Authority: US
Inventors: Corrigan Joseph
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-04-09
Filing date: 1919-04-09
Publication date: 1923-02-13
Anticipated expiration: 1940-02-13

Description

Feb. 13, 1923. 1,444,951.

- J. C O R RIGAN. Y

LOOM FOR WEAVING TERRY mamas.

.HLED APR. 9, l9l9. 2 SHEETS-SHEET 2.

Ili-

Patented against a shoulder or other abutment.

'ot the its.

. a LOOM FOR WEAVING- TERRY FABRICS.

Application filed April 9,

T 0 all '71) 71am it may concern Be it known that l. Josnrii ConnicAN, a citizen of the United States, and a resident of lloclaledge, county of Montgomery, State of Pennsylvania, have invented certain new and useful Improvements in Looms for eaving Terry Fabrics; of which the following is a specification.

My invention relates to looms which are adapted to be employed for weaving terry fabrics and it has for its object, generally speaking. to simplify and render more cilicient the mechanical construction of such looms and thereby also reduce the cost of race-plate and the reed having connection therewith.

In the construction as shown the raceplate comprises a metal plate (such as steel) 1 situated adjacent the lay and to the top side of which a thinner plate of less width is secured. The shuttle travels back and forth over the race plate. The steel plate is of a width substantially equal to that of the lay and substantially covers the same.

Movement of the said race-plate and reed connected therewith relatively to thclay is ett'ected for the usual known purpose.

For accomplishing the above mentioned purpose orobjectthe construction is such that the race-plate is not permitted to abut In consequence there can be no collectionof dust. ravelings. etc, to interfere with the proper movements and operation of the race-plate during the weaving ot a terry fabric in which operation there is, as is well known, relative mo\ 'einents between the race-plate and the reed and the lay.

Another object of my invention is to provide the means for causing relative move- 1 between the race-plate and a portion reed connected therewith and the lay with adjustments whereby the extent of such relative movement may be "varied; also to simplify the construction of said means.

My invention also has tor its object to provide a simple and efficient means whereby the operation of the mechanism for weaving terry cloth or fabric may be auto .struction than that shown.

1919. Serial no. 288,701.

matically discontinued without interfering with the operation of the loom so that in the further operation smooth or plain cloth will be woven. The period during which such mechanism is thrown out of operation is controlled so that automatically at the expiration of a certain predetermined time and after a 'predetern'lined length 01 such plain or smooth'cloth has been woven the terry weaving mechanism is again thrown into operation and the weaving of ter fabric is resumed. It is apparent, therefore, that this mechanism provides means whereby the length of the sections of terry fabric and the intermediate lengths of smooth or plain cloth to be woven may be controlled and varied as desired.

Other objects and advantages of my invention will be referred to in the detailed description thereof which follows or will be apparent from such description.

In order that my invention may be more ireadily understood and its practical advantages fully appreciated reference should be had to the accompanying drawings in which I have illustrated one form of a convenient embodiment thereof. It will beunderstood, however, that the said invention is susceptible of embodiment inother forms of conln the drawings Y F'gure l is a vertical sectional view taken an front to roar along the line 11 of I ig. 2-3, parts of the construction being shown in side elevation and parts of the loom. construction being omitted in order that the" parts constituting the invention may be more cilearlyshown;

Fig. 2 is an enlarged transverse sectional view taken on the line 22 of Fig. 3 with a portion of one of the parts broken away tov show another part more clearly;

lllig. :5 is a horizontal sectional View taken. through the upper partol the loom structure. the portions of the structure constr tilting the invention being shown in top plan view; and- 'i l Fig. at a view in front eleivation'ot a portion ofa loom structure showing in tront elevation a portion of the; structure constinested at its upper end to th v ente iegdlot.

which the mechanism oi the terry attachments is actuated. At its opposite end from the gear 6 the shaft is provided with a,

wheel 9 driven by a belt (not shown) to rotate the shaft 5.

The crank arms at are connected with the lay swords 3 by means 01 connecting rods or links 10. It is apparent that rotation of the shaft 5 causes a rocking'or oscillatory V movementof the lay 2 which is secured to the upper ends or the lay swords.

In additionto the gear 7 the main shaft 8 also provided with a small gear which is in engagement with a larger gear 16 mounted upon a shaft 17, which snaft is mounted in bearings 18 supported in crossgirts 19 extending from front to rear of the loom frame and being supported at their op- 1 posite ends upon the front and rear crosspieces of the loom frame structure.

In the. construction shown the gear 15 is provided with thirty teeth while the gear 16 is provided with forty-five teeth. I

The shaft 1? is also provided with a cam 20 having oppositely disposed high or

dwell portions

21 and 22 and

intermediate depressions

23 and 2%, 'the said portions and the said depressions being situated in opposing relation to each other as shown. The high or dwell portion 2-1 is considerably longer or wider than the opposing high or dwell portion 22. The said cam 20 is adapted to contact and co-operate with a contact wheelv supprnrted upon a lever 26 pivoted at 27 intermediate its ends and extending longitudinally of the loom structure. Depend-- lrom the said lever is an arm 28 to the lower end of which the front end of a trong coiled spring 29 is secured. The rear end orhthe said spring is connected to an arm or projection 30. This arm may have c mention with any .lixed or stationary por- ;-he loom structure. In the construci shown it is connected with the adjacent crossgirt l9,

The tension of the spring 29 acting upon the depending arm 28 tends to force the portion of the lever :26 in rear of its pivot 533 in an upward direction so as to hold the wheel in contact with the periphery of the cam member 20. At its rear end the lever 26 is slotted, which slot provides means tor adjustably connecting the lower end of a link thereto. The upper end of the said linl: is adjustably connected in. a slot 36 in the end portion of the forwardly prm jec'ting arm 37 of a bell crank lever 38 secured to a rock-slntlt 39. The other arm .50 of the said bell crank extends downwardly and is provided witha'rnumber of holes ll adjacent to its lower end to provide for adjustably connecting the rear end of a con-- necting rod 42 thereto. The trout end of said connecting rod is conne to the lower end of an arm 45 depending; from a rockshaft 46 journaled at its opposite ends in bearings 47 formed in projections or lugs which depend from ll-shaped members 5 which are secured to the lay 2.

The opposite side portions of the said members 50 project above the top surface of the hole of the lay 2 and are provided with bearings 52 in which the opposite hardened ends 53 of the bars 54 are slidably or movably mounted. These bars extend across and in close proximity to the upper surface of the lay.

The race-plate is secured to and supported upon these bars, said plate comprising the plate or bar 56 of suitable metah such as steel, which is secured to the said bars 5 and a narrower plate 57 secured on the top of the plate or bar 56 by means or screws 6O designates a groove extending lougitiulinally of the plate or bar 56, said groove he- .ing provided as a seat or hearing for the lower bar of the reedGl. The rear edge of the'plate 57 is curved and titted against the cylindrical surl'ace oi the lower bar of the reed as shown. the construction being such as to permit the turning or rocking oi the lower bar oi? the reed in seat, said bar being prevented, however, 'lrom becoming accidentally disengaged therefrom.

The rock shaft 46 is provided with arms l0 adjacent its opposite ends which extend upwardly therefrom and are pivotally connected at their upper ends to the rear ends 71 of strips or bars T2 of suitable material which extend. umlerneath and are secured by means oil; screws 73 to the lower side of the plate or bar 56 oi the race-plate.

If the lever 26 left free to oscillate or rock upon-its pivot it will be apparent that as the cam 20 rotates the said lever is rocked or moved. about its pivot and that sucl rocl-: ing movement through the connections 3! 38, 4:0, 4-5 and causes oscilla u reciprocatory movement of the race prising the plates an i oi the movements in he lay the race-plate and the re i ,7 by means of the crank arms and connecting rods or links 10, as previously described.

hen the contact wheel 25 drops into the recesses or depressions 23 and 24: of the cam 20 the movement oi? the connections 35 38. etc., causes rearward movement ot the raceplate and reed with the result that two oi the picks or weft threads lelt loose and are not jammed or pushed up tight against the edge of the cloth being woven.

contact with the contact wheel 25, at which I tune the race-plate is held in forward position, a third pick or weft thread is thrown or shot and all three picks or welt threads,

including the two which have been left loose by reason ot the presence of the depressions 23 and 24, are forced or pushed Cir the said chain is causeil to up tight against the edge of the cloth bemg woven and the loops in certain ol: the warp threads are termed thereby produc ing a fabric known or called terry. These loops are formed in certain oi the warp threads which are not drawn ti ht or taut.

The height of these loops may be varied by varying the distance through which the race-plate moves relatively to the lay. This adjustment may be eliiected by changing the points of connection of the opposite ends of the link t0 the lever 26 and to the arm 37 of the bell crank lever 38 and also the point of connection of the rear end of the connecting rod 41 to the lower end portion of the arm l0 of the said bell crank lever.

If a higher loop is desired the adjustment should be made to cause a longer or greater movement of the race plate and reed relative to the lay 2. x

In'the weaving ol fabrics containing terry portions it is frequently desirable that means he provided not only for interrupting or discontinuing the operation oil the terry mechanism and during such diseon tinuance permit-ting or causing the weaving of a plain or smooth fabric but such means should also determine or be capable of determining the length of the terry portions and the intermediate smooth or non-terry portions of the fabric.

As a means or mechanism for accomplishing this desirable result I have provided a relatively short shat-t mounted in bearings 81 and 82 supported upon the front portion of the frame structure of the loom at one side thereof adjacent to the take-up gear mechanism common teloom structures. S3 designates a gear mounted on the shaft 80, WlllClIgGal is in engagement with a gear 84, the latter being one of a train of gears "for operating. the take-up roll. The other gears cl? said train are not shown. The said shaft 530 is al o g irc'vided with a sprocket wheel wvhich sprocketchain 86 is-engaged and over which avcl. The links of said chain are separable so that its length may be increased or diminished as desired.

The chain is provided with one or more links having projectionssuch 8T thereon. In the construction shown two adjacent links of the chain are provided with projections. It will be understood that links in addition to and situated a distance from "those shown with projections may also'be provided with. projectionsaml that by reason of the presence 0t projections at intervals in the chain the periods during which length of terry fabric which is woven may lnycontrolled or .else a greater or loss nuns beret links may be ren'ioved or inserted in the chain to lengthen or shorten the same "to thereby control the length of a terry. section of the fabric which is b'eing'woven.

The projections 87, whether one or more groups thereot contact with the outer end portion of an arm 90 of a. bell crank lever 91. The other arm 92 of the said bell crank lever extends as shown in Fig. 1 ot ,the drawings toward the. bottom oi the loom structure and is connected at its lower end to a link 93, the opposite end of said link being connected to an arm 94- upon .a rock sha'tt 95 supported in bearings-'96 secured to the front lower cross-barQG of the frame of the loom. The shalt 95: provided at its opposite end portionwith an arm 97 having a pin 98 .in engagement witlra slot 99 in the upper end portion of a dog 100 piv otally supported at 101. The said dog is provided with a forwardly extending pro jection 1,02 slotted or notched as indicated at 103. A portion of the cross-bar 96 pro jects into the said slot or notch 103 to limit the extent of pivotal movement of the dog 100. V hen the doglOO moved rearwardly it is adapted to engage a shoulder 10 1-. upon the forward end of the lever When in engagen'ient with the said shoulder such dog prevents operation of the sa-idlever.

The arm. 90 ot the hell or lever 91 is provided with weight lon, which. when the smooth part of the sprock .t'

A chain 86 in operatwe relation. to the said arm 90. holds the said bell crank lever -11) theposition shown ,=in Fig. l of the di ings, in which position thedog 10D is held out oi" ei'igagement witlrthc shoulder Illllupon the front end oi the lever .26 e-r lever tree to oscillate or rock. jectionsrsuch 87, upon the sprocket chain 86 contact with the'arin 90 or the hell crank lever 97'. mov .nent thereot is etiected to thr w the do hi into ei'w enient with the said should llleland tin citation or pi'r t thatt-he when the dc 'e iioni; :3 are broi h con t wht l tl'iat when the d the said lever to revent operation their-cot relative movement of the race-plate with r :QEOt; to the lay is prevented and in consequence each pic i weft threadis forced up otagainst the edge of the cloth being prevent opi the lever 36 d to move of the cam 25. The result. therefore. is

i1 r oven to produce plain or smooth cloth distinguished from terry cloth fabric.

ring: the said W hen pro" .00 is in engagement with into operative relation to the 1 7 1 connection with the tions 8? determines Inge supported upon depending; from the said roe to carry a nojcction projections the case may be, out of contact with the arm 90 the weight .l-(li causes movement theroot and of the parts connected therewith to adiso W 100 from the lever 96 to permit operation of the latter by the cam and consequent 1' ing of the terry fabric.

, The length of v ie during which the arm 90 is held in elevated position by projecthe length of the portions oi? smooth r i lain iabric intermediate the terry sections, .iiikewise the length of time during which he said arm 90 occupies its lower position, as when restingupon the links the sprocket chain other than those provided with the said. projections, 'deter mines the length of the terry sections.

1 claim 1. In the como' loom O'i' the character described, aation of ray, pivoted arms for r causing lay, bearsides oil the opposite cno portions 1 W slidably supported in the d bearings, a raceplate secured to the sa oarsanzl means for causing reciprocator; movement of the said race-plate independently of the oscillatory movement of the said lay,

2. In a loom of the character described, the combination of a. la ans for sup porting the same, means i'" 5 oscillatory movement of the a a plate, means for supportnw out of contact with said la a cam, a lever having contact with the said and da nted to be actuated thereby and connecti as intermediate the said lever and the race plate,whereby actuation ot the said lever causes actuation oi the (3 re eilatc independently oi the oscillato y movement oscillatory movement I oi the said lav.

v 3. In a loom oi the character described, the combination of a lay, means for causing; oscillatory movement thereo; a race-plate, a rock shaft, connections between the said rock shaft and the said race-o i an arm 1 means the said h s; ure i non l :1 in to jv LL18 said racedol iudetor Tfochin ractcr d i'ibed, a means tor reusing tuereo bearings sun I bars slidablv un oubted trace- S'iffhfiftfiil approximate to t e lay, a. rock shalt, or support Q d icon 1 and pivoted in said bear upon bzus a and parallel r lation means carried by the ing said :ck shalt, are nection with the said rock shtional arm having rie'id connection with the :umption oi the weavsaid ra e-plate, an addisaid rock shalt and means for causing rocklug n'ioveinei'it oi. the last mentioned arm and thereby causing rocking movement of the said [first named arms to effect back and forth movement of the said raceqalate.

e. In a loom of the character descril'ied, the combination of a lay, means tor causing oscillatory movement thereof, a race-plate situated above and in approximate and parallel relation to the-said lay, cam, means for causing rotation of said cam, a plurality of levers intermediate the said cam and the said race-plate, one of the said leversbeing adapted to be actuated by the said cam to cause actuation of the other of said levers to ca actuation of the said raceqJla-te and ad ,istablo connections between said levers, substantially as described.

6. .ln a loom or the character described, he combination of a lay, means for causing oscillatory movementthereof, a race-plate, a cam, means for causin rotary movement of said cam, a lever situated in adjacent re lation to said cam, means for holding said lever in contact with said cam, a bell crank lever, a connection between the cam actuated lever and an arm of the said bell crank lever, means tor adjusting said connection so that movement of the cam actuated lever will vary the throw of the said bell crank lever, a rock shaft, connections between the said rock's-shaft and the said race-plate and connections between the said rock shaft and the other arm of said bell crank lever Whereby movement of the said bell crank lever will cause rocking movement of the said rock shaft to cause back and forth movement of the said race-plate.

7. .ln a loom of the character described, the combination oi? a lay, means for causing oscillatory movement thereof, a race-plat), a cam, means for causing rotary movement ct said cam, a lever situated in adjacent ation to said cam, means for holding said lever in contactwith said cam, a bell crank v.

Tool-ring movement of the said rock shaft to cause back and :lorth movement '01": the said race-plate 8. In a looin oi the character described, the combination oi? a lay, a race-plate supported in operative relation tothe said lay, a can], a pivoted lever situated in adjacent vrelation to said cam, means for yieldingly holding a portion of said lever in contact with the said cam, a pivoted arm situated a distance from "the said cam actuated. lever, a link connecting the said lever and the said arm, means for varying the connections between the said link and the said lever and arm, a second arm having rigid connection with the first named arm and extending at an angle with respect thereto, the said arms being actuated by the actuation ot the said cam actuated lever and connections between the end portion of the second named arm and the said race-plate whereby actuation of the said arm causes actuation of the said race-plate. v

9. in a loom of the character described, the combination of a lay, means for causing oscillatory movement thereot, a race-plate, a cam, connections intermediate the said cam'and the said race-plate whereby the said cam is adapted to cause movement of the said race-plate independently of the movement of said lay and a device for en-. gaging the said connections to prevent operation thereof and thereby prevent movement oi the said race-plate independently of the i said lay.

10. In a loom of the character described, the combination of a lay, means for causing oscillatory movement thereof, a race-plate, a cam, connections intermediate the said cam and the said race-plate whereby the said cam is adapted to cause movement of the said race-plate independently of the movement of said lay, a device for ch nging said connections to prevent operation there- (i'i and thereby prevent movement of the said race-plate independently oi said lay and automatically acting means for causing movement of said device into engagement with the connections.

11. In a loom ot the character described, the combination of a lay, means for causing oscillatory movement of said lay, a raceplate, means for causing oscillatory movement of said race-plate independently or" the movement of said lay, take-up gear mechanism, a device which is adapted to engage a part of the means for causing independent movement of the said. race-plate to prevent operation of the said means and mechanism intermediate the said take-up gear mechanism and the said device for causing movement of the latter into engagement with the said part.

'12. In a loom of the character described, the combination of a lay, means tor causing oscillatory movement thereof, a race-plate, means for causing movement oi said raceplate independently of the movement of said lay, said means comprising a lever, a pivoted dogadapted to be engaged with and disengaged from said lever and means for auton'iatically moving said dog into engagement with said lever.

. In. a loom of the character described,

the combination of a'lay, means: for causing oscillatory movement thereof, arace-plate, a rotary cam, connections intermediate the said cam and the said raceplate,said connections being ad-pted to be act ated by said cam to (2 use movement of said raceilate indepcnc y of the said lay, a pivot-- ed device a movement of said device at intervals into engagement with a part of said connections to prevent actuation thereof by the said carm 141:. in a loom otthe character describer, t 1e combination or a lay, meanstor causing oscillatoryv movement thereof, a race-plate, a rotary cam, a lever adapted to be actuated by said cam, connections between said lever and the said raceplate whereby actuation oi the lever causes movement of the said connections to actuate the said race-platelndependently of the said lay, a device adapted'to be moved into engagement with the said lever to prevent actuation thereof and into engagement with said lever.

15. In a loom of the character described, the comblnation of a lay, means for causing means for causing pivotal means for automatically moving said device oscillatory movement of said lay, a race- I plate, means for slidably'supporting the said race-plate, a rotary cam, a lever pivoted intermediate 1ts ends, means tor yleld ngly pressing one portion of said lever upon one side of its pivot in contact with the said cam, connections between the said last mentioned portion oi? said lever and the said race-plate whereby pivotal or swinging movement of said lever causes back and 'iorth movement ot the said race-plate and I .a device adapted to engage the portion of the said cam, connections between the Y said last mentioned portion of said lever and the said race-plate whereby piv otalor swinging movement of said le ver causes back and forth movement of the said race-plate, a pivoted. device adapted to be moved at intervals into engagement with the portion of said lever upon the opposite side of its pivot to prevent pivotal movement thereof in one direction and thereby prevent back and forth movement of the said 'ace-plate and automatically acting means for causing movement of the said pivoted device at intervals into and out of engagement with the said lever.

17. in a loom of the character described, the combination of a lay, means tor causing swinging inoven'ient thereof a race-plate, means for causing movement of said raceplate relatively to the said lay independently thereof a rotatable shaft, a chain on said shaft, a bell crank lever having one arm in operative relation to said chain, the said chain having one or more projections thereon for contacting with the said arm to lift the same, a pivoted deviceadapted to be moved into and out of engagement with a part ot the n'ieans for causing movement ot the said race-plate and connections intermediate the said device and the other arm of said bell crank lever whereby swinging movement of said lever causes swinging movement of the said device into and out of engagement with said part.

In testimony that I claim the foregoing as my invention l have hereunto signed my name this 3rd day of April, A. D. 1919.

JOSEPH CORRIGAN.