US598187A - weaver - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

W. WEAVER LOOM.

No, 598,187. Patented Feb. 1,1898.

(No Model.) 4 Sheets--Sheet 2.

W. WEAVER.

LOOM. No. 598,187. Patented Feb. 1, 1898.

D ll y 6 3 4 y Gem (No Model.) 4 Sheets-Sheetfl.

W. WEAVER.

, LOOM.

No. 598,187. Patented Feb. 1,1898.

HI H.

IHIHHHIHHHHIIHHI lllllHum-l (No Model.)

W. WEAVER.

LOOM.

4 Sheets-Sheet '4.

Patented Feb. 1, 1 898.

afmvw a NITEDCSTATES PATENT WEAVER JACQUARD PLACE.

AND ELECTRIC SI-IUTTLECOMPANY, OF SAME LOOM.

SPECIFICATION forming part of Letters Patent No. 598,187, dated February 1, 1898.

i Application filed July 28,1896. Serial No. 600,828. (No model.)

To all whom it may concern:

.Be it known that I, W'ILLI'AM WEAVER, a citizen of the United States, residing at Norwalk, in the county of Fairfield. and State of Connecticut, have invented certain new and useful Improvements in Looms, of which the following is a specification.

My invention has for its object to improve the construction of looms, and more especially that class of looms in which two warps are woven at the same time and also that class in which the lathe is suspended from its upper end or portion; and to this end my invention consists in certain improved features fully set forth hereinafter and fully illustrated in the accompanying drawings, in which- Figure 1 is a side View, in part section, illus trating sufiicient of a French loom to show my improvements. Fig. 2 is a part front elevation in part section. Fig. 3 is an enlarged transverse section through the shuttle-box. Fig. A is an enlarged transverse section through the reed portion of the lathe. Fig. 5 is a plan view of the upper shuttle-race, and Fig. 6 is a detail sectional view of one end thereof.

The frame A is suitably constructed, preferably as in the ordinary French loom, to support a lathe B, swinging from an upper pivot wand operated as usual in such looms.

The beam may have a single race or more. As shown, it is provided with two races and a single wide reed 2.

Heretofore in constructions of my invention I have doubled the capacity of a loom by using a wide reed and ten sets of shuttleboxes and securing a supplemental race 3 opposite the reed about midway between its edges. While this permits the use of two separate sets of warps, it is attended with the disadvantage that in case of the breaking of one of the lower warp-threads it is extremely difficult to repair the warp, as the race 3 obstructs the operation of rethreading'. To

' remedy this difficulty, I provide a race 3, which is movably supported opposite the reed, so that it can be withdrawn therefrom witha in the warp without removing the threads or in any way altering the position of the other parts.

The race 3 may be made and supported in different ways. As shown, it is pivoted near the ends to two brackets 4 4E, bolted to the lathe-beam 5. Normally the race 3 is sup ported in an inclined position extending across and close to the reed, and one shuttle runs over the same, the other passing over the lathe-beam 5, as usual; but if access is required to the lower warps the race-blade 3 is turned back to the position shown in dotted lines or is otherwise withdrawn from the reed, when it will no longer obstruct the operations with the warp.

At each end of the suspended lathe B, I place the shuttle-box D, having two or more shuttle -receptacles y y, and between the guides in front of each receptacle slides a picker-carrier 6, from the back of which ex tends a picker 7.

There are two picker-staves 8 9 at each end of the loom, which are operated by the separate scroll-cams 1O 12, which lift and suddenly release the staves, so that when released a spring 13 will swing each staff to throw the shuttle. I

Each lower picker-carrier 6 is connected directly by a strap 14 to the end of the staff 9; but the stick 15, which connects. the upper picker-carrier 6 with the staff 8, passes around a guide-pulley 16, these parts being so arranged as to throw the shuttles at proper time, the flexible straps or connections securing the proper movements of the pickers regardless of the swinging of the lathe independently of the picker-staff.

Heretofore attempts have been made to combine a shuttle stop-motion with the suspended lathe of a French loom, but so far as Iam aware without success. I have devised a'stop-motion attachment for this class of looms which I will now describe.

To the lathe B adjacent to each shuttlebox D is pivoted a two-armed lever E. If

there is more than one shuttle-receptacle, there is a lever E for each receptacle. ,One

arm17'of the lever E bears upon a sliding block 16, which extends to the shuttle-box, in

position to be forced outward as the shuttle enters the receptacle, thereby pushing back the arm 17 andilifting the other arm 18 of the lever out of position to contact with the shoul 5 der 6 of asliding rod 19. A flat spring 20 tends to throw inward the block 16, swinging the lever E with the same, and if the shuttle should not enter the receptacle the arm 18 in such case would make contact with the IO shoulder 17 and slide the sliding rod 19 in the direction of the arrow. This movement of the sliding rod carries its projecting end 190 into con tact with a shipper-lever, (not shown, carrying it out of engagement with its usual retaining-notch, thereby effecting the stopping of the loom. The stopping of the loom is not always sufficient to prevent damage to the fabric, especially when the stoppage does not instantly take place, and I therefore pro- 20 vide means whereby no injury will result even if the shuttle should remain in the warp. To this end I provide means whereby on the failure of the shuttle to enter its receptacle as the lathe completes its forward movement 2 5 the warp-beam will be positively turned-and the warp will be slackened. Different means may be employed for securing this result by the action of the stop-motion devices carried by the lathe. As shown, a lever 22, swinging upon a pivot 22 below the shaft of the beam F, carries a pawl 23, which engages a ratchet 24, so that when the said lever is swung in the direction. of its arrow by the forward movement of the rod 19, connected with the 3 5 lever, the beam F will be turned against the resistance of the usual friction devices and slacken the warp sufficiently so as to prevent any injury. -When there are two shuttlereceptacles and two stop-motion devices carried by the lathe, the shoulder 19 is wide enough to engage each of the arms 18, and the lever 22 is provided with a second pawl 25, which engages a ratchet upon the shaft of the beam G with the same effect of slack- 5 ening the lower warp.

It will be evident that the slack-motion device above described may be used in connection with looms of different characters from those illustrated, as may also be the movable race-plate 3, and that the stop-motion and multiple box may be used upon a French loom without the movable race-plate.

In practice in weaving two fabrics simultaneously it very often happens that one or more of the threads of the lower warp becomes broken, and if the fabric be of any considerable width it is very difficult to draw the end of the broken thread to one edge of the warp, and in order to obviate this difficultyI make use of suitable mechanism for drawing the broken thread to the edge of the warp without necessitating the insertion of the hand between the warp-threads. Various devices may be employed for this purpose, and such devices maybe applied to one or both shuttle-races. In the present instance the upper race only is supplied with mechanism for effecting the purpose described, although it will be obvious that such mechanism might be as readily applied to the lower shuttle-race.

Referring more particularly to Figs. 4: to 6, the inner edge of the upper race 3 is provided with'a recess 30 to leave an opening intermediate the reed-blades and the shuttle-race,and in this recess and in a plane slightly lower than that of the upper face of the race travels an endless band 31, provided upon its upper edge with projections or teeth 32. This band is supported near opposite ends of the shuttlerace upon band-wheels 33, journaled in the under face of the race, and the shafts of said band-wheels are projected and adapted to receive a key or crank, by means of which the wheels are rotated to impart movementto the toothed band. From the above it will be apparent that the toothed band normally remains stationary, and as its teeth are below the plane of the upper face of the shuttle-race they do not come in contact with the warpthreads while they remain unbroken. When, 90. however, one of the threads breaks, it drops or sags below the raceway and lies upon the band 31, and when the band is moved the broken thread is caught by one of the teeth and carrid to one side of the warp.

Without limiting myself to the precise construction and arrangement of parts shown, I claim as my invention 1. In aloom for weaving superposed fabrics, the combinationwith a lathe and reed,of a supplemental race-plate supported permanently and movable to and from the reed wholly in a plane below that of the upper warp, substantially as described.

2. In a loom for weaving superposed fabrics, I o 5 the combination with a lathe and reed, of a supplemental race-plate pivotally supported and adapted to be swung to and from the reed in a plane wholly below that of the upper warp, substantially as described.

3. In a loom, the combination of a lathe provided with shuttle-boxes, shuttle-stop-motion devices carried by the lathe comprising projecting arms and sliding contact-pieces extending intothe shuttle-boxes adapted to I15 actuate said arms, a rod provided with shoulders adapted to be engaged by the arms, and with a projection adapted to actuate stop IIO devices, a warp-beam and connections between the rod and warp-beam, whereby the beam is positively rotated by the movement of the rod.

4. The combination with the warp-beam of a loom, and stop devices carried by the lathe, of intermediate mechanism wherebythe beam 1 25 is positively turned by the operation of the said'stop devices, substantially as set forth.

5. The combination with a lathe and stop devices carried thereby, of a movable rod or bar 19, having a shoulder for contacting with I 30 the stop-motion devices and a lever 22 e011- toward the'ends of the 1athe,snbstantia11y nected with said rod, a pawl carried by said as described;

lever, a Warp-beam and a ratchet connected with the warp-beam and engaged by said 5 pawl, substantially as described.

6. In a loom the combination with the shuttle-race of mechanism whereby a brokenwarpthread may be brought to the side of thewarp, embodying devices for engaging broken [0 threads and means for carrying said devices two subscribing witnesses.

In'testimony whereof I have signed my name to this specification in the presence of WILLIAM WEAVER.

Images