US1937401A - Reversible take-up for looms - Google Patents

Description

NGV. 28, 1933. B. w BRQUWER Er AL 1,937,401

REVERSIBLE TAKE-UP FOR LOOMS Filed Dec. 30, 1930 2 sheets-'sheet l /7 TOF/Veys Nov. 28, 1933. B w. BRQUWER Er AL 1,937,401

- REVERSIBLE TAKE-UP FOR LOOMS Filed Dec. 30, 1930 2 Sheets-Sheet 2 Yilj sleeve' for' the take-up. It is an importantobject forwardly as the loom operates. 100

YPatented' Nov. 2s, 1933 Y' 1,937,401

Y 1,937,401 Y REVERSIBLE TAKE-UP vron LooMs Benjamin W. Brouwer and Albert A. Gordon,

Worcester, Mass., assignors to Crompton ity Knowles Loom Works, Worcester, Mass., a corporation of Massachusetts Application December V30,1930

Serial No.v 505,566

7 Claims. Y (Cl. 139-304) This invention relates to improvements in a In the accompanying drawings, wherein-a concontrol for combined take-up and pattern mechvenient embodiment of our invention is set forth, anism and it is the general object of the inven- Fig. 1 isa side elevation of the rear part of a Y tion to provide means forV simultaneously unso-called Knowles loom having our inventionap- -`5 clutching the Ipattern mechanism and reversing plied thereto,

the take-up drive. YFig. 2 is a plan view taken in the` direction of In the so-called Knowles loom the head motion arrow 2, Fig. l, on an Yenlarged scale, which is mounted on the arches is driven by an Fig. 3 is a horizontal section on line 3-3 of upright shaft deriving its motion either from the Fig. 1, 'Y

:i bottom or top of the loom. The upright shaft is Fig. i is an enlarged detail view of the lever 65 ordinarily Vgeared directly to the loom and in construction for the reverse sleeve, order to permit the Weaver to turn the pattern vFig. 5 is a detailed horizontal section on line chain back without being obliged to operate the 5-5 o f Fig. 4,1and 1 loom" by hand there is employed a clutch having Fig. 6" is aV detail front elevation on anv enlarged Y .15 a' part-which slides along the upright shaft to scale looking in thedirection ofFig. 1, the take- 70 -disconnect the head. Certain llooms of this type up shaft'being shown in section. are Vprovidedwith a positivereverse take-up so Referring to Fig. 1, we have shown a -loom connected'that when the vpattern mechanism is frame IO-liaving 'a top crank shaft 11 provided reversed the takeupwill Valso be reversed. This Witha gear 12 which meshes with a larger gear 220 is done to require the fell of the cloth; to move 13 mounted on the bottom shaft 14. An eccen- 75 back `an amount proportional to the removed tric gear 15 isf-fixed to the top shaft and meshes picks, with another eccentricv gear'l movable about a -Heretoforeit has been customary to supply the lxedpivot. The gear 16 may be" cast as `a part clutch withmeans for manual control and the of a bevel gear-17, and the latter'maymesh with r reverse for the take-up has hada separate conasecond bevel gear 18 mounted for free rota- 80 troleach of these controls being movable indetion with respect toan upright: shaft 19. vThis pendently of each other and being so related that shaft has secured thereto a i collar V2() through the Weaver was obliged to operate both handles. which projects an operating pin21 shown in dot- Itis an important object of the present invention ted lines in Fig. 1, said pin being secured toa 230. toY place -the clutch under control Yof the lever slide 22 which can be moved upwardly along the 85 which reverses the take-up, but at the same time shaft 19 from the positionl shown in Fig. f1.' permit the clutchfto be operatedV independently Slidably mounted on the lower portion of the of the reverse. In other words, by the employshaft 19 is a sleeve 23 havingA rigidtherewith upment of the invention set forth lherein operation per and lower. beveled gears '24 and 25,'respec- 3'5..of"'the reverse lever will perform two'functions, tively; A grooved extension 26 projects upward- 90 namely, the clutch will be moved toV non-driving ly from the sleeve and permitsthev latterto be position and the take-up will be reversed, and in raised from the position vshown in Fig. 1.1 A addition it is possible to move the clutch to nondriven bevel gear 27 has driving connection with driving positionwithout reversing the pattern the 'take-up connection 2S which projectsjfor- 40:01 take-up, wardly to the take-up mechanism not shown of 95 Inprevious devices of the general type Aset theloom. Thetake-up-is ofthe positively driven forth herein it has been lcustomary to employ two type and receives continuous motion. Ordinarily rods and a bell crank lever to establish connection the sleeve is in the position shown in-Fig. 1 vand between the reverse lever and the sliding reverse the gearing 'is such that the take-up will -move of the present invention to eliminate the bell TheY shaft 19 extends upwardly to 'cooperat crank'lever and one of the links and in their withY harness mechanism of the type generally place substitute a single link. This result is acknown as the Knowles head.' This'mechanism complished by altering the form 0f the reverse should'be under the control of the weaver so sleeve4 operating lever. that it can be operated independently of the 105 With these and other objects in view which loom for the purpose of reversing the sequence willappear as the description proceeds, our inof sheds to correct a mispick. It is for this rea,- vention-resides-in the combination and arrangeson that the Vslide 22 is provided for breaking ment of parts hereinaiterdescribed and set forth' the connection between theN collar 20 and the inthe'claims. Y driving gear 18.- 110 A reversing lever 30 may be pivoted about a stud 3l secured to fixed structure and has the upper end thereof connected to mechanism not shown herein but effective to reverse the drive for the pattern chain when the weaver desires to correct a mispick. Ordinarily, the lower end of the lever will be forward in the position shown in Fig. 1, which means that the key not shown which is operatively connected to the upper end of thelever will be pushed to its normal rear position.

It is the purpose of our invention to permit the weaver to reverse the take-up and also unclutch the head fromthe rest of the loom by a single movement of lever 30, while at the same time providing an independent control for the clutch so that the latter may be thrown out without reversing the take-up. In accomplishing these results we provide a fixed stud 40 on' which is pivotally mounted a yoke 41 having a hub 42 provided with a notch 43. A lug 44 formed as part `of a lever 45 also pivoted on the stud 40 tsginto the notch 43,-and holding detents 46 on the lever receive a yielding lock spring plunger 47 mounted on a fixed casting 48.

The upper end of the lever 45 has a slot 49 in which is adjustably mounted in normally xed position a stud 50 having pivotal connection with the lower end of a diagonally extending rod 51. The upper endof the latter is pivotally connected at 52 to the reverse lever 30. The yoke 41 has connection with the grooved extension 26 and is the means by which the sleeve 23 is raised from the position shown in Fig. 1. The relation of the centers 31, 40, 50 and 52 are such that movement of the reverse levers() from the full line position shown in Fig. 1 to the dotted line or reverse position will cause a shifting of the sleeve 23 so that the lower bevel gear 25 will mesh with the take-up bevel 27.

For controlling the clutch we provide a second mechanism including a xed stud 60 on which is pivoted a three-arm lever 61 having a yoke 62 withing'ers to receive a grooved extension 63 of the slide 22. The lever '61 has an upwardly extending arm64 having pivotal connection with the rear end of an adjustable connector 65 the forward end of which is attached to a manually operated lever 66 pivoted as at 67 to fixed structure. p

Under normal conditions the lever 66 will be in the position shown in Fig. 1 and the clutch will be connected to drive the upright shaft 19 while the loom is in motion. When the lever 66 is moved to the right in a clockwise direction around stud or axis 67, however, the arm 64 will be moved to the dotted line position shown in Fig. 1, the eiect of which is to disconnect the clutch so that the shaft 19 may be rotated without moving the lay and other parts of the loom.

The lever 61 has a third arm 68 extending rearwardly from the stud 60 and having a pin 69 which extends through slot 70 formed in a rod head 71 carried by the upper end of a rod 72. The lower end of the latter `is pivotally connected as at 73 to the lever 45.

As shown in full lines in Fig. 1 the parts are placed for normal operation, but if the weaver is obliged to correct a mispick by reversing the pattern chain the lever 30 will be moved to the dotted position the effect of which will be to lift the sleeve 23 as previously described and also to cause a downward movement on the part of rod 72. This latter member is so related to the threearm lever 61 that downward movement will cause rocking of arm 68 in a counter-clockwise direction as viewed in Fig. 1 around stud 60. This movement causes an upward motion of the slide 22 to disconnect the clutch and permit free rotation of shaft 1Q' by mechanism not shown. In this way a single operation of lever 30 will reverse the take-up and also disconnect the clutch.

On the other hand, if it should be desired to disconnect the clutch without necessarily altering the take-up this result can be achieved merely by throwing the lever 66 forwardly. The slot 70 is so proportioned that release of the clutch by lever 66 can be accomplished without causing downward movement of the rod 72 and the takeup can therefore remain unchanged.

From the foregoing it will be seen that the invention set forth herein provides means for simultaneously reversing the take-up and also unclutching the shaft 19 by a single operation of the weaver, while at the same time if it be desired to disconnect the clutch without changing the take-up this latter result can be accomplished merely by throwing lever 66 forwardly. It will also be seen that the adjustable connnector 51 establishes a direct connection between the reverse lever 36 and the sleeve operating lever 45. In order to permit this arrangement it is desirable to dispose the upwardly extending arm of lever 45, and the centers 40 and 52 in the relation shown.

Having thus described our invention it will be seen that changes `and modifications may be made therein by those skilled in the art without departing from the spirit and scope of our invention and we do not wish to be limited tothe details herein disclosed, but what we claim is:

1. In a loom having an upright harness driving shaft, a driving element for the shaft, a clutch to connect theshaft and element, a takeup member, means rotating with the shaft to drive the take-up member either forwardly or 115 backwardly, a controller for the means, a second controller for the clutch movable independently of the means controller, and means to cause the clutch to move when the take-up member is driven backwardly.

2. In a loom, a take-up, a reversible drive therefor, an upright shaft, a drive therefor,v a clutch to connect and disconnect the shaft and drive, a manual control to move the take-up reversible drive and clutch in unison when moving the clutch to disconnect the shaft and drive therefor, and a second manual control to give the clutch a disconnecting movement independently of the first named control.

3. In a loom, a take-up member normally driven forwardly but reversible, a harness driving member normally driven forwardly butmovable to non-driving position, a controller-to move the harness driving member independently of the other member, and a second controller to move the harness driving memberto non-driving position and also reverse the take-up member.

4. In a loom, a normally operative harness driving member movable to non-operative position, a take-up member movable to forward or 14,6 reverse take-up driving position, means to move the rst member independently of the second, and means -to require the first member to move to non-operative position whenever the second member moves to take-up reversingposition.

5.*In a loom, an `upright shaft to drive harnesses, a take-up driving member slidable along the shaft from forward to reverse position, a clutch member slida-ble along the shaft to shaft driving and non-driving positions, means to slide 150 7. In a loom, an upright shaft to drive har` nesses, a take-np driving member slidable along the shaft from forward to reverse position, a clutch member slidable along the shaft to shaft driving and non-driving positions, a controller to require both members to move together when the take-up member is reversed, and a second controller to move the clutch member independently of the take-up member.

. BENJAMIN W. BROUWER.

ALBERT A. GORDON.

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