US935652A - Loom-dobby. - Google Patents

Description

A. A. GORDON, JB.

LOOM DOBBY.

APPLICATION FILED ROY. 6, 1906.

A. A. GORDON, JR.

LOOM DOBBY.

APPLICATION FILED Nov. 6, 1906.

ZSHEETS-SEEET 2.

Patented Oct. 5, 1909.

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UNITED STATES PATENT FFICE.

ALBERT A. CORDON, JR., OE WORCESTER, MASSACHUSETTS, AssICNOR To CROMPTON a KNowLES LOOM WORKS, A CORPORATION OE MASSACHUSETTS.

LOOM-BOBBY.

935,652. Specification 0f Letters Patent. Patented Oct. 5, 1909.

Application led November 6, 1906. Serial No. 342,240.

To all whom 'it may concern:

Be it known that I, ALBERT A. GORDON, J r., a citizen of the United States, residing at lVorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Loom- Dobbies, of which the following is a specifiand the indicator levers hooks, and vice versa.

I have only shown in the drawings dctached parts of a dobby of the class referred to, embodying my improvements, Suliicient to enable those skilled in the art to understand the construction and operation thereof.

or fingers for thc l cation. l' Referring to the drawings :hFigure l is a My invention relates to a loom dobby, partial end view of a two cylinder dobby and particularly to that class of dobbies embodying my improvements, looking in the which have two pattern cylinders having a direction of arrow a, Fig. 2; Some of the rotary motion in a fixed plane, and adapted parts are broken away, and other parts are to be operated successively, one pattern cylinder during the weaving of one portion of the fabric, and the other pattern cylinder during the weaving of another portion of the fabric.

The object of my invention is to improve upon the construction of two cylinder dobbies of the class referred to, and more particularly to provide a dobby having two pattern cylinders, and only one set of indicator levers or lingers, to operate the hooks moved by the lifter blades, and direct connections intermediate said two cylinders and the indicator levers or fingers, to cause the movement of said levers or fingers from either pattern cylinder, as desired. When one set of connections, between one pattern cylinder and the indicator levers or fingers, are in operative position, the other set of connections is in inoperative position, and Vice versa.

In the preferred construction of my improvements which I have shown in the drawings, I provide a movable frame, over the two pattern cylinders, and intermediate the pattern cylinders, and the indicator levers or fingers which operate the hooks moved by the lifter blades, and I combine with said frame two sets of levers or fingers, termed l cylinder lingers, one set operated by one pattern cylinder, and the other set by the other pattern cylinder, and two fingers, one finger of each set adapted to engage and move the same indicator lever or linger.

I provide mechanism, the operation of I which is controlled by a pattern chain, to I move one set of fingers into operative posil tion, relative to its pattern cylinder and the l' not Shown in this ligure. Fig. 2 is an edge or side view of the parts shown in Fig. l, looking in the direction of arrow l), same gure. Fig. 3 is a section, on line 3, 3, F ig. l, looking in the direction of arrow c, same ligure. Fig. t shows, on an enlarged scale, an end View of one cylinder shaft, and disk, and gear, det-ached, looking in the direction of arrow d, F ig. 5. Fig. is a section, on line 5, 5, Fig. 4, looking in the direction of arrow e, same ligure, and showing in full lines the sleeve carrying a worm and clutch member. Fig. 6 is, on an enlarged scale, a section, on line 6, 6, Fig. 2, looking in the direction of arrow f, same ligure; this ligure shows the pattern chain on each Cylinder, and also the lifter blade and hooks, and the connections to the upper hooks, and, Fig. 7 corresponds to Fig. 6, but shows some of the parts in a different position.

In the accompanying drawings, l is a detached portion of one end or side of the dobby frame, having a horizontally extending longitudinal slot or opening l therein, and the lower lifter bar 2, connected through a link or connector 3 with the rocking lever 4. The lower hooks 5, and the upper hooks not shown, through connectors 6, are adapted to be lowered and raised, to be in a position to be engaged by the lifter bar 2, or to be in a position to be out of the path of the lifter bar Q., through the movement of the indicaa transverse rod S, in the usual and well known way. The outer ends of the lingers 7 extend through a grid 9 attached to the dobby frame, and the lower surface of the lingers 7 have a broad foot or engaging surface 7 thereon.

All of the above mentioned parts may be indicator levers or ngers for the hooks, and to move the other set of lingers out ofoperative position relative to its pattern cylinder,

tor levers or lingers 7, pivotally mounted on of the usual and well known construction in the class of dobbies referred to.

I will now describe my improvements.

There are two pattern cylinders 10, and 11, each carrying a pattern surface, in this instance made up of wooden bars 12 linked together, and carrying pattern pins 13. Each pattern cylinder 10, and 11, is fast on a rotary shaft 10, and 11, mounted in suitable bearings 1 attached to the end frame 1, see Fig. 2, and having a rotary movement in a fixed plane.

On the shaft 14, see Fig. 3, mounted in suitable bearings 14 on hangers connected to the end frame, is fast in this instance a movable, and preferably a rocking frame 16, consisting of two end bars connected by rods 17. The rods 17 in this instance extend above the two cylinders 10, and 11, and upon the outer sides of said cylinders. On the rods 17 are loosely mounted the outer' ends or hubs 18 of the cylinder fingers 18.

There are two sets of cylinder fingers 18, one set for each cylinder, and one finger for each row of pattern pins 13, in each pat-tern chain 12. rlhe inner engaging ends of the cylinder fingers 18 are preferably offset and lap by each other, as shown, and the inner end of each pair of cylinder' fingers, one finger for one cylinder, and one finger for the other cylinder, is adapted to engage the same indicator finger 7, on the broadened surface or foot 7 thereon.

Then the cylinder fingers 18 are in their lowered position, they rest on the shaft 14.

The rocking motion of the frame 16 in each direction, is in this instance limited by set screws 19 adjustable in a stationary part of the dobby frame, not shown, see Figs. G, and 7. A rocking motion is communicated to the frame 16, according to the desired movement of the indicator fingers 7, or the pattern to be woven, in this instance through a pattern surface 20, in this instance made up of bars linked together, and carrying rolls 21 and tubes 22, in the usual way, and mounted on a pattern barrel or cylinder 23 fast on a driven shaft 24, operated from some driven part of the loom. The pattern surface or chain 2O operates a pattern lever 25, which is pivoted on a stud Q6, see Fig. 1, and has an extension 25, which is connected by an adjustable link 27, with a lever 28, having its hub 28 fast on the shaft 14.

The rocking of the shaft 14 and of the frame 16 in one direction, or the other, moves one set of cylinder fingers 18 out of operative position, relatively to the pattern cylinder operating said fingers, and simultaneously moves the other set of cylinder fingers 18 into operative position relatively to the pattern cylinder operating said fingers, see Figs. G, and 7 In this instance the hub 28 of the arm 28 has a stud 29 extending up therefrom, which is engaged by an elongated on the shaft 10 slot 30 in an arm 30, the hub 30 of which is loosely mounted on a stud 31 on a stationary stand 32, see Fig. 3. The hub 30. has extending out from opposite sides thereof arms or levers 33, each carrying a stud 33 adapted to extend into an annular groove 34 'in a sleeve or collar 34, forming a clutch member, and loosely mounted on the extended hub'38 of gears 38, which gears are loose and the shaft 11 of the pattern cylinders 10and 11. One of the hubs 38 has a worm gear 35 fast thereon, which is adapted to mesh with and be driven by a worm 3G on an upright driven shaft 37, see Figs. 1, and 2. Each gear 38 has an opening 38 therein.

Fast on the end of each pattern cylinder shaft 10 and 11 is a disk 39, forming a clutch member, and having four openings 39 therein. Each sleeve or collar 34 has a lug or extension 34 thereon, which Vextends through the opening 38 in the gear 38, and in the longitudinal movement of the sleeve or collar 34 on the hub 38 of a gear 38, is adapted to enter one of the openings 39 in the disk 39 fast on the shaft 10, or 11, to connect the gear 38 with the shaft, and cause the revolution thereof and of the pattern cylinder fast thereon.

From the above description in connection with the drawings the operation 'of my improvements will be readily understood by those skilled in the art.

Vhen in the revolution of the pattern chain 20, a roll 21 comes under the foot of the pattern lever 25, through the extension 25, connector 27, and arm 28, the shaft 14 is rocked, and also the frame 1G, to move down the outer side or edge of said frame, as shown in Fig. 6, to cause the cylinder fingers 18, extending over the pattern cylinder 10 to'be moved into operative position relative to said cylinder, and at -the same time to cause the cylinder fingers 18 of the pattern cylinder 11 to be moved out of operative position, as shown in Fig. 6.

rl`he rocking movement of the shaft 14, through the lever 30 and the arms 33 connected therewith, moves one of the clutch sleeves or collars 34, (the one at the right in Fig. 2,) to cause the lug or projection 34 thereon to enter one of the openings 39 in the disk 39, and clutch or attach the gear 38 to the cylinder shaft 10 of the pattern cylinder 10, to cause the revolution of said shaft and cylinder, through the revolution of the gear 38. At the same time the other clutch sleeve or collar 34 is simultaneously moved, to withdraw the lug or projection 34 thereon from engagement with the disk 39 fast on the shaft 11 of the pattern cylinder 11, leaving said cylinder at rest, but the gear 38, loose on said shaft 11, is ro tated through the worm gear 35, meshing with the worm 36 on the upright driven shaft 37, see Figs. 1, and 3, and said gear 38 meshing with the other gear 3S on the pattern cylinder shaft 10', causes the revolution of said cylinder shaft and pattern cylinder 10 thereon.

IVhen in the rotation of the pattern chain 2O a tube or blank 22 passes under the foot 25' of the pattern lever 25, the pattern lever will drop, and through the action of the spring 40, Figs. 2, and 3, connected with the frame 1G, said frame will be moved or rocked in the opposite direction, to move out of operative position the cylinder lingers 18 of the pattern cylinder 10, and move into operative position the cylinder fingers 18 of the pattern cylinder 11, as shown in Fig. 7, and through the movement of the lever 30 and arms 33, the clutch sleeve 34 at the right in Fig. 1, has its lug or projection 34 moved out of engagement with the disk 30, fast on the pattern cylinder shaft 10', leaving the gear 3S loose on said shaft, and said shaft and the pattern cylinder 10 stationary; at the same time the clutch sleeve 34 on the other cylinder shaft 11 has its lug or projection 34 moved into engagement with the disk 39 fast on said shaft, to cause the gear 3S, operated through the worms 35 and 3G, and shaft 37, to rotate the cylinder shaft 11 and the pattern cylinder 11, to operate the cylinder fingers 18 of said cylinder 11, and cause them to operate the indicator levers or fingers 7, as shown in Fig. 7

rl`he advantages of my improvements will be readily appreciated by those skilled in the art. They are of simple construction and operation, and are adapted to be applied to the ordinary two cylinder dobbies, and by means of my improvements only one set of hook indicator levers, or fingers are employed, the same as in the case of a single cylinder dobby.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is y 1. In a loom dobby, the combination with two pattern cylinders, each carrying a pattern surface, and indicator levers or fingers for operating lifter bar hooks, of a movable frame and two sets of cylinder fingers mounted on said frame, a pair of cylinder fingers, one finger for each cylinder, adapted to engage and move the same indicator lever or finger, and said framey adapted to be moved, to carry one set of cylinder fingers into an inoperative position relative to its pattern cylinder, and the other set of cylinder fingers into an operative position relative to its pattern surface.

2. In a loom dobby, the combination with two pattern cylinders, each carrying a pattern surface, and indicator levers or fingers for operating lifter bar hooks, of a movable frame, and two sets of cylinder fingers mounted on said frame, a pair of cylinder fingers, one finger for each cylinder, adapted to engage and move the same indicator lever or finger, and said frame adapted to be moved, to carry one set of cylinder fingers into an inoperative position relative to its pattern cylinder, and the other set of cylinder fingers into an operative position relative to its pattern cylinder, and means for moving said frame at predetermined times, and stopping one pattern cylinder and putting into operation the other pattern cylinder.

3. In a loom dobby, the combination with two pattern cylinders carrying pattern surfaces, and indicator levers or fingers for moving' the lifter bar hooks, of a rocking frame carrying two sets of cylinder fingers arranged opposite to each other and pivotally mounted, and the inner free ends of each pair of cylinder fingers, one finger for each cylinder, adapted to engage and move the same indicator lever or finger, of means for rocking said frame at predetermined times, and moving one set of fingers into an inoperative position relative to its pattern cylinder, to be heid in said position, and the other set of fingers into an operative position relative to its pattern cylinder, and means for putting into operation the cylinder for the fingers in operative position, and putting out of operation the cylinder for the fingers in an inoperative position.

4. In a loom dobby, the combination with two pattern cylinders carrying pattern surfaces, and indicator levers or fingers for moving the lifter bar hooks, of a rocking frame carrying two sets of cylinder fingers arranged opposite to each other, and pivotally mounted, and the inner free ends of each pair of cylinder fingers, one finger for each cylinder, adapted to engage and move the same indicator lever or finger, of means for rocking said frame at predetermined times, and moving one set of fingers into an inoperative position relative to its pattern cylinder, to be held in said position, and the other .set of fingers into an operative position relative to its pattern cylinder, and means for putting into operation the cylinder for the fingers in operative position, and putt-ing out of operation the cylinder for the fingers in an inoperative position, said means consisting of a gear on each cylinder shaft, and clutch mechanism for clutching one gear to its shaft, and unclutching the other gear from its shaft, and driving mechanism for rotating said gears.

5. In a` loom dobby, the combination with two pattern cylinders having a rotary movement in a fixed plane, and each cylinder carrying a pattern surface, and a worm drive for said cylinders, and indicator levers for operating lifter bar hooks, of cylinder fingers or levers for each cylinder, adapted to operate the same indicator lever or finger to move the lifter bar hooks.

6. In a loom. (lobby, the combination with two pattern cylinders, having a rotary movement in a iixed plane, and each carrying a pattern surface, and a Worm drive for said Cylinders, and indicator levers for operating lifter bar hooks, of two sets of cylinder {ingers or levers, one iinger of each set adapted 10 to operate the saine indicator lever or linger to lnove a lifter bar hook, and means for supporting` said Cylinder lingers and moving them into and out of operative position.

ALBERT A. GORDON, JR. Titnesses J. C. DEWEY, TIAAS.

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