US1833884A

US1833884A - Loom for weaving thick and thin striped fabrics

Info

Publication number: US1833884A
Application number: US518317A
Authority: US
Inventors: Clare H Draper
Original assignee: Draper Corp
Current assignee: Draper Corp
Priority date: 1931-02-26
Filing date: 1931-02-26
Publication date: 1931-11-24
Anticipated expiration: 1948-11-24

Description

Nov. 24, 1931. c. H. DRAPER 1,833,884

7 LOOM FOR WEAVING THICK AND THIN STRIPED FABRICS I Filed E6b.. 26, 1931 2 Sheets-Sheet 1 Fig.1.

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Nov. 24, 1931. c. H. DRAPER 1,833,884

LOOM FOR WEAVING THICK AND THIN STRIPED FABRICS Filed Feb. 26, 1931 2 Sheets-Sheet 2 \nvenTm'. more HDmper ATTys.

Patented Nov. 24, 1931 UNITE'DS'TATES PATENT OFFICE i CLARE H. DRAZEER, 10F HOPEDALE, MASSACHUSETTS, ASSIGNOR T DBAPER CORPOB A- 1 TION, 0F HOPEDALE, MASSACHUSETTS, AYCOZRP ORATION OF MAINE LOQM non wmvme 'rnrox AND THIN STRIPEID- FA RICS Application filed 'Iebruary 26., 1931. Serial No. 518,317.

This invention relates to a 100m operating to vary .the condensation of the filling in the cloth as .it is Woven so .as to produce thick and thin places transversely of the cloth and thereby give a transverse striped-effect.

The object of the invention is to provide means for effecting intermittently a rotary shift of the take-up roll in opposite directions during the weaving operation so as "to prodnce'the desired effect."

The object of the invention is further to provide means for effecting such a rotary shift of the take-up 'roll in opposite directions in regular -:a-lternation to a predetermined extent so as :to produce in regular alternation similar decreases and increases in the condensation ofiathe filling.

The object of the invention is further to provide means for efi'ecting'such rotary shift of the take-up roll while at the :same time maintaining a positive driving connection from the 'drivinghlement "to the take-up roll.

These and other -obiectsaand features of the invention will appear more fully "in the accompanying description and drawings and will :be particularly pointed out in the claims.

As the invention is applicable -'to various types of looms and as the general construction and operation :of such flooms is well 30 known and familiar to those skilled :in the art, it :is only necessary here .to illustrate and describe those features of an ordinary "type of loom with which a preferred embodiment of the present invention is "concerned. The preferred embodiment of the invention illustrated makes IHSGI of much of the me hanism disclosed in (my pending application,

Serial 'No. 429,408, filed February 18, 1930.,

But this mechanism is here utilized for :se-' curing entirely different results.

Inthe drawings:

Fig. 1 is a front elevation partially broken away of a portion of a loom with the preferred form of the invention embodied there- Fig. '2 is a view in elevation of a portion of the construction shown in Fig. 1 looking toward the right of that figure.

' .Fig. 3 is :an enlarged detail chiefly in vertical cross section taken transversely of the driving shaft on the line 3-3 of Fig. 2;

Fig. 4 is a detail on :a larger scale incross section taken on :the line 4.4 :of Fig; 2. i

The doom comprises the usual side frames of whichnaportionof :the left-hand frame 1 is shown with the breast beam '2 extending therefrom to the opposite side frame. A usual form of take up roll 3 is journailed in the side frames under the breast beam and usually presents a roughened surfalceto (grip the cloth which is wound on the cloth r01 1 4 by frictional engagement with the take-up roll; A shaft '5 is jounnalled in a bearing bracket 6 supported on the bottom of. the frame and this shaft has journalled thereon a gear A train of gearing Whichrmay The of any suitable arrangement and indicated generallyat 8 extends from the gear 7 to :the

shaft 9 of the take-.rup roll so that any rotation imparted'in either direction to the gear 7 will in turn be positively and definitely imparted to the take np roll. But it will he understood that the particular driving connections between the element? and the shaft 9 of the :ta'ke-up roll maybe of any suitable construction "so long as they act to impart positively, directly, and" accurately the retation of the take-up roll in either direction according 'to' the direction of rotation of the element 7. i

The shaft 5 has keyed thereto a worm wheel 10 and this Worm Wheel meshes with and is driven by-a worm 11 keyed to a shaft '12'jourmilled in the bearing bracket '6 and extend ingrearwardly in. the loom frame and positively driven from one'of the usual -loom shafts. The shaft 5 has also keyed thereto at 13 abevelled gear 14. The shaft "5 with this gear 14 constitutes a positively driven element which in this case is the drivingelement for the take-up'roll. ,Butthe mea-nsby which the final driving element, or in this case the bevelled gear 14, is given a positive rotation may be of anyfsuitable form and construction and specifically considered forms no part of the present invention. 7 i

- A driven element in the form of a bevelled gear 15 journalled in axial alignment with the driving element or bevelled gear 14 and 100 is preferably for that purpose journalled on the shaft 5. This driven element 15 imparts a direct driving connection to the take-up roll and for that purpose is preferably formed rigid or integral with the gear 7 and thus acts through the train of gearing 8 to drive the take-up roll.

3 A differential system of gearing is illustrated including the bevelled gears 14 and 15 and comprises a cylindrical housing 16 rotatable coaxially of the shaft 5 and provided with one or more intermediate bevelled gears 17 herein shown as three in number having their shafts 18 journalled radially .in the housing and so arranged that the bevelled gears 17 mesh with both of the bevelled gears 14 and 15. i

- The outer cylindrical surface of the housing 16. is formed to present a worm wheel 19 and this worm wheel 19 meshes with a worm 20 secured to an auxiliary or transverse shaft 21 journalled in portions 22 of the bearing bracket 6.

A gear 23 is secured to the auxiliary shaft. A bracket arm 24: depending from one of the portions 22 of the bracket 6 presents a .bearing sleeve 25 extending beneath and parallel with the auxiliary shaft 21. In this bearing sleeve is journalled a lever; This lever comprises the pivot shaft 26, the rearwardly extending arm formed in the shape of a sector gear 27 meshing with the gear 23 on the auxiliary shaft 21 and the forwardly extending arm 28. The arm constituting the sector 27 is adjustably secured to the shaft 26 by the set screw 29. A crank is formed on the driving shaft 5 and is here shown as a pin 30 formed on or secured to a collar 31 in turn adjustably secured to the end of the shaft 5 as by the set screw 32. A pitman extends from the crank pin 30 to the arm 28 of'the'lever and presents the required universal connections for that purpose. As illustrated, this pitman comprises a block 33 journalled on the crank pin 30 and'transversely journalled at 34 in the bifurcated upper end of the link 35. This link at its lower end is journalled in the bifurcated upper end of the block 36 on the pin 37 extending parallel with the crank pin 30 and the block 36 j ournalled on the driving element, that is, the shaft 5 and bevelled gear 14, through tothe take-up roll. Thisis because the bevelled gear 1 1 is geared through the intermediate gears 17 to the bevelled gear 18 which is secured to the gear 7 and this gear 7 is in turn geared to the take-up roll shaft. Consequently if the houstions. VVhen the take-up roll is thus relatively shifted in thetaking up direction, it is obvious that the condensation of the filling in the cloth willbe decreased, producing a thin place, and, when the rotationis in the opposite direction, the condensation of the filling will be increased, producing a thick place. Consequently by controlling the position of the housing and intermittently rotating it in opposite directions to a predetermined extent, a variety of patterns may be produced in the cloth-by the variations in the'condensa-tion of thefilling.

In the construction illustrated, this relative rotary shift of the take-up roll with respect to the driving element is produced by rotating the housing alternately in opposite directions by means of the connections extend.- ing to the driving shaft 5whichfhave been described. In the case illustrated, the intermittent rotary shiftof the take-up roll in opposite directions takes place in regular alternation and during equal periods of predetermined extent determined by the crank and sector gear mechanism extending from the shaft 5 to the auxiliary shaft 21. It will also be seen that this rotary shift of the take-up roll relatively to the driving element in either direction is accomplished without disconnecting from the take-up roll the means for driving it so that there is no break at any timein the train of permanent connections extending between the driving element and the take-up roll. I I 7 Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is: I

1. A loom comprising a take-up roll, means for driving the take-up roll in a direction to effect take-upQandmeans acting to give intermittently in oppositedirections rotary shift of the take-up roll relative to its driving means thereby to vary the condensation of the filling in the cloth.

2. A loom comprising a take-up roll, means for driving the take-up roll in a direction to effect take-up, and means acting to give in regular alternation in opposite directions a predetermined amount of rotary shift of the take-up roll relative to its driving means to 1,833,884 i I I 3 creases and increases in the condensation of the filling in the cloth.

3. A loom'comprising a take-up roll, means for driving the take-up roll in a direction to effect take-up, and means acting without disconnecting the said driving means from the take-up roll to give intermittently in opposite directions rotary shift of the take-up roll relative to its driving means thereby to vary the condensation of the filling in the cloth.

4:. A loom comprising atake-up roll, means for driving the take-up roll in a direction to effect talre-up, means acting without discon necting the said driving means from the takeup roll to give in regular alternation in opposite directions a predetermined amount 'of rotary shift of the takeup roll relative to its driving means to produce in regular alternation similar decreases and increases in the condensation of the filling in the cloth.

5.'A take-up mechanism for looms comprising a driving element, a take-up roll, a train of permanent connections between said driving element and take-up roll, and means for moving one of said connections intermittently in opposite directions to effect rotary shift of the take-up roll in opposite directions relative to the driving element thereby to vary the condensation of the filling in the cloth.

6. A take-up mechanism for looms comprising a driving element, a take-up roll, a train of permanent connections between said driving element and take-up roll, and means for moving one of said connections in regular alternation in opposite directions to effect a predetermined amount of rotary shift of the take-up roll in opposite directions relative to the driving element thereby to produce in regular alternation similar decreases and increases in the condensation of the filling in the cloth. f

i 7. A loom comprising a tal e-up roll, a driving element. a permanent positive driving connection from the driving element to the take-up roll, and means acting intermittently to shift the rotary position of the take-up roll in opposite directions with respect to the driving element thereby to form thick and thin places transversely of the cloth.

,8. A loom comprising a take-up roll, a driving element, a permanent positive driving connection from the driving element to the take-up roll, and means operated by the driving element acting intermittently to shift the rotary position of the take-up roll in opposite directions with respect to the driving element thereby to form thick and thin places transversely of the cloth.

9. A loom comprising a take-up roll, a driving element, a differential system of gearing between the driving element and the take-uproll for driving the latter from the former to effect take-up, and means acting intermittently to rotate bodily in opposite:

directions-theintermediate element of the differential gearing thereby to shiftin opposite directions the rotary position of the tatable coaxially with the shaft, an intermediategear journalled in the housing and meshing with the driving and driven gears, and means acting to control the positionof the housing and intermittently rotate the housing in opposite directions thus to effect a take-up action of the cloth with predeter- I mined variations in the condensation ofthe filling therein.

11. A loom comprising a shaft, means for positively driving the shaft, a driving gear secured to the shaft, a driven gear journalled in axial alignment with the shaft, a take-up roll, a gearing connection between the takeup roll and the driven gear. a housing rotatable coa-xially with the shaft, an intermediate gear journalled in the housing and meshing with thedriving and driven gears, J

an auxiliary shaft, a gearing connection between the auxiliary shaft and housing, and means for rotating the auxiliary shaft alternately in opposite directions thereby to 1 shift the rotary position of the take-up roll relatively to the driving shaft and vary the condensation of the filling in the cloth.

12. A loom comprising a shaft; means for positively driving the shaft, a driving gear secured to the shaft, a driven gear journalled in axial alignment with the shaft, a takeup roll, a gearing connection between the take-up roll and the driven gear, a housing rotatable coaxially with the shaft, an intermediate gear journalled in the housingand a meshing with the driving and driven gears, an-auxiliary shaft, a gearing connection be- 7 tween the auxiliary shaft and housing, a crank operated by the driving shaft and an oscillatory connection between the crank and the auxiliary shaft whereby the crank acts to oscillate the auxiliary shaft alternately in opposite directions and-thereby effects a variation in the condensation of the filling in the cloth. v

13. A loom comprising a shaft, means for ppsitively driving the shaft, a driving gear secured to the shaft, a driven gear journalled in axial alignment with the shaft, a takeup roll, a gearing connection between the take up roll and the driven gear, a housing rotatable coaxially with the shaft, an inter mediate gear journalled in the housing and meshing with the driving and driven gears,

an auxiliary shaft,'a gearing connection be tween the auxiliary shaft and housing, a gear on the auxiliary shaft, a lever having one arm in the form of a sector gear in en-- gagement With the gear on the auxiliary shaft, a crank on the drivingshaft, and a pitman connection from the crank to the other arm of the said lever. In testimony whereof, I have si name to this specification.

gned my CLARE: H. DRAPER.