US289955A

US289955A - Oaepets

Info

Publication number: US289955A
Authority: US
Publication date: 1883-12-11
Anticipated expiration: 1900-12-11

Description

(Nb Model.)

Elm 289,955.

W. HQBAIR STO W. V v LOOM FOR WEAVING GARPETS;

%TNESSES: i i

3 Sheets-Sheet 2.

Patented Den. 11, 1883.

BY a 7-.

ATTORNEY.

N. PETERS. MW Wilmin ton. at.

(No Model.) s Sheets -Sheet 3.

W. H. BAIRSTOW.

v LOOM 1 0R WEAVING OARPETS. No. 289,955. 'Patented De orll, 1883.

WITNESSES: INVENTOR:

' B-Y h ATTORNEY.

f ITED ST TES PATENT 7 forms.

\VILLIAllI H. BAIRSTOl/V, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HORNER BROTHERS, OF SAME PLACE.

LOOM FOR WEAVING'KCARPETSF SPECIFICATION forming part of Letters Patent No. 289,955, dated December 11, 1883.

- Application filed December 30, 1881. (No model.) Patented in England March 29, ISTZlfXo. 1,252.

To aZZ whom it may concern:

Be it known that 1, WILLIAM HENRY BAIR- slow, a subject of Great Britain, residing at the city and county of Philadelphia, State of Pennsylvania, have invented a new. and useful I1nprovement in Looms for Weaving Carpets. &c., which improvement is fully set forth in the following specification andaccompanying drawings, in which Figure 1 is avertical section on line as m, Fig. 3, of the parts at the right-hand end of my loom. Figs. 2 and 3 are views of opposite sides of the loom, partly broken away, Fig. 3 being partly sectional on line 2 z of Fig. 1. Fig. 4 is-a vertical section of the'loom 011 line y y, Figs. 2 and 3. Fig. 5 is avertical section of the loom from back to front on line z z, Fig. 4, looking in the direction indicated by arrow 1. Fig. 6 is a vertical section of the loom from front to back on line 2 z, Fig. 4, looking in the direction indicated by arrow 2. Fig. 7 is a detached view of the picking-hammers in side elevation, and illustrating their respective positions. Fig. 8 is a side view of a modification, to be hereinafter referred to. Figs. 9, 10,11, 12, andl3 show difterentforms of cams or tappet-wheels.

Similar letters of reference indicate corresponding parts in the several figures.

. My invention consists of a loom more-particularly adapted for weaving carpets, having an independent or additional back, which,

when worn out or cut, will not release the front or upper surface of the carpet, the construction and operation of the loom being hereinafter fully set forth.

Referring to the drawings, A represents the driving-shaft, to which power is applied in any, suitable manner, and which carries apinion, A, meshing with a toothed wheel, B, keyed or otherwise secured to a shaft, 0, the

- two shafts being suitably mounted on the frame of the loom.

On the shaft 0 is secured a bevel-pinion, D, which engages with .the bevel-wheel I) of the wire-motion, theremaining portion'of which motionis of the usual construction, and forms no part of theflpresent' invention. 1 E represents a change-wheel fixed to the shaftO, and F represents a change-wheel which meshes with the wheel '15, and is secured to a crank-shaft, G, which is properly mounted on the frame of the loom, and receives power from the shaft 0 through the medium of the wheels E F.

To the crankshaft is attached one end of connecting-rods H, whose other ends are pivoted or hinged to the lay J, whereby by the rotation of the crank-shaft the proper 'advancing and returning motions are imparted to said. lay. V v

Q Q represent the shuttle-boxes. The lefthand box Q is carried by a frame, S,Which is fixed to oris a continuation of thelay, and moves back and forth with it. The-right-handbox Q is carried by a separate frame, S, sustained by-a lever, f, which is fulcrumed at its lower end on the lay-sword shaft V. This frame S moves forward with and abreast of the lay for about two-thirds of the stroke of the latter, when it stops and remains stationary while the lay is completing its forward stroke and until the lay again comes abreast of it on its back stroke, when it again moves with and abreast the picking, but in beating up it advances a less distance than the lay, so as to leave more room for the wire-motion. The movement of the frame Sis derived from a canrWheel, WV, on the end ofthe shaft G, with which it is connected by means-of a pitman, d, having a slot, (1', which is fitted on the end of the shaft G, and also having a roller, 6. which rides in the cam-groove of said wheel NV.

The shuttle-boxes Q Q are adapted for working two shuttles, one shuttle carrying afine thread and theother shuttlea coarse thread,in order to weave the independent back of the carpet hereinbefore referred to.- 'The boxes slide vertically on rods 'i i fixed to the frames S S.

In order to lift and drop theright-handbox Ma vertical direction. The lower end of the rod 0 is jointedto one end of a lever, N,which is mounted on a vertically-adjustable bracket, M, connected to the frame of the loom, the

other end of said lever havinga roller or stud which is engaged by a cam, K, 011 a shaft, L. which is mounted on the frame of the loom and receives motion by means of a toothed wheel, L, meshing with a pinion on the shaft (J. The cam K is connected to the shaft L by a setscrew, so that it may be adjusted or set on said shaft. In the position shown in Fig. 3 the shuttle-box Q is dropped so that its upper compartment stands opposite the shuttle-race; but when the shaft L has turned a half-revolution the box Q, will be lifted,so that itslower compartment will coincide with the shuttle-race. The left-hand shuttle-box Q slides on rods i i in the frame S, and has a forked rod, Fig. l, jointed to it, the same as the rod 0, for the box Q, already described. The lower end of this rod is bifurcated, Fig. 2, and embraces the shaft Y, to guide the rod in its vertical movement.

To the rod isjointed alink, 0, Fig. 4,whose length is adjusted by a coupling, 1., similar to that provided for the rod 0,al ready described. By turning the coupling P the box Q may be adjusted vertically. The link 0 connects the rod 0 with one end of a lever, N, Figs. 2 and 4, which is fulcrnmed at M, and whose other end bears a roller which is acted on by two cams, K K, fixed to the face of the treadleboxwheel U, which wheel is mountedloosely on the shaft Land rotated by a pinion, b, fixed on the end of the shaft C.

In the position shown in Fig. 2 the upper compartment of the shuttle-box Q is in coincidence with the shuttleraee. nearest cam K encounters the lever N, the box Q, will be lifted until its lower compartment coincides with the shuttlerace, and this lifting and dropping will occur twice to each revolution of the wheel U; or a cam, K, might be fixed on the shaft L instead of the cams on the wheel U, if desired.

I will now describe my picking-motion, by means of which the two shuttles are driven in the proper order. The order provided for in the construction shown in the drawings is as follows, starting with both shuttles in box Q at the right: first, upper shuttle from right; second, lower shuttle from right; third, upper shuttle from left; fourth, upper shuttle from right; fifth, lower shuttle from left; sixth, up-

pershuttle from left. These movements correspond to one revolution of the wheel U and to two revolutions of the shaft L.

R R are the two picker-sticks, and r r the picker-straps, Fig. 4, attached to arms T T on the picking-shafts T T, which shafts extend backward just inside of the side frames, I I.

Mounted on the shaft L are four pickinghammers, 7c 7t 75 7t. Each shaft T has a short projecting arm or tappet, 1, which stands in the way of the picking-hammer at its side of the loom, so that as one of these hammers strikes it it is depressed, thereby quickly oscillating the shaft T and causing the arm T to move correspondingly and jerk the pickerstick B, so as to throw the shuttle, all substan- As soon as the tially in the usual manner. I arrange the shafts T T to slide endwise slightly, so that their tappets t may sometimes clear the picking-hammers, and thereby miss a pick; and I provide means for sliding them back and forth in a predetermined order. In the construction shown four hammers, 7: 7r 7t 7t", (see Figs. l 5, 6, and 7,) two at each side of the loom, are l placed upon the shaft in three radial lines- I that is to say, hammer 7; on the left-hand side on one radial line, hammer L" at the righthand side at an angle of one hundred and twenty degrees to hammer 7r. IIa-mmers 7c and i 7:" are placed on the same radial line upon opposite sides of the loom and at an angle of one hundred and twenty degrees to both hammers 2 7a and 7;. The right-hand shaft T is engaged by an armfm, on a shaft, 11, the end of the arm I entering between two projections 011 the shaft I T. The shaft 71 extends to about the center of 1 the loom, Fig. 4, and there bears an arm 1), the end of which is engaged by a cam, 11, on a gear-wheel, 2:, which is driven by a pinion, w, on the shaft L. On the left-hand side of the wheel 22 is another cam, a, set oppositelyto the cam a. and acting on another arm,p, on a shaft, n, extending to the left-hand side-of theloom, where its arm m engages the left-hand picking-shaft T. The wheel 1; makes one revolution to two of the shaft L, and the cams a a are so set that as the two hammers 7;" 7c desccnd one cam throws its arm 9 or 1) forward, thereby sliding the corresponding shaft T forward until its tappet t clears its hammer 75" or 7.1, while the hammer on the other side of the loom acts on the other tappet t. At the next revolution of the shaft L the other of the first two hammers will act, and the one which be fore acted will clear, thus causing the two hammers 75" 75 to affect alternate picks. The hammers 7a 7a always act on the tappets.

Another way of working the shafts n a is to provide horizontal arms q q, as shown by dotted lines in Fig. 5, in place of the arms 1) 12, Fig. 5, and to link these to two of the heddle-levers g and 71, whose ends are shown in Fig. 4, the arms 1) p being removed or disconneeted.

To adapt my loom for weaving Brussels earpets, the pinion b is not fixed to the shaft 0, but is fixed to the end of the crank-shaft G, and gears with an idler, c, which meshes with the wheel U. In such case I prefer that the shaft 0 shall not project beyond the frame of the left-hand side of the loom, and that the pinion b be mounted on the crank-shaft and gear with the aforesaid idler, which is vertically adjustable on a plate, 8, the latter being horizontally adjustable and fixed to the frame I, all as shown in Fig. 8, so that differentsized pinions maybe accommodated.

Figs. 9 to 13, inclusive, show different forms of the cam-wheels or tappet-wheels in the treadle-box at the left-hand side of the loom, these wheels being those commonly used to actuate the treadle-levers used for manipulating the healds or heddles. By a proper manipnlation of the heddles I effect an interlock: ing of the warp and weft, by which the independent back is woven.

Figs. 9 and 12 show the tappet-wheels used in weaving three-shot, and Figs. 10 and 11 are tappet-wheels for four-shot, velvet. The tappets shown in Figs. 9 and 11 work the gears containing the fine chain for three and four shot velvet, respectively, and Figs. 10 and 12 show the tappets for. the back-chain- The fine chain which acts as a binding-chain for the worsted is free from the back when the shuttle containing the thick thread is thrown across, therefore the fine chain, being buried, cannot by any means come in contact with any surface to cut and chafe it, and thus release the worsted hence this construction gives great strength and wearing quality to the fabllC.

In Fig. 13 is shown a tappet-wheel for dividing the back-chains whenweaving threeshot velvet. One-half the chain rises at the same time as the lash and remains up while the two shots across the front are woven, which makes an interlocking of chain and weft and. holds the worsted fast.

The fabric having an independent or additionalback is the subj ect-matter of another application for Letters Patent filed by me on the 8th day of May, 1882.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the following parts: the lay J,-shaft A, pinion A, crank-shaft G, rods H, change-wheels E F, shaft 0 and toothed pinion thereon, the wheel B, lever f, shuttlebox frames S S, pitman d, cam WV, shuttleboxes Q Q, rods 0 0, levers N N, camsK K,

shaft L, toothed wheel L, link 0, wheel U, 0'

and pinion b, all constructed and arranged to operate substantially as and for the purpose set forth.

2. The combination of the following parts:

the lay'J, shaft A, toothed pinion A, crank- .shaft G, rods 11, change-wheels E F, shaft 0 all arranged to operate substantially as and for the purpose set forth.

3. The combination of the shuttle-boxes Q Q, each arranged for two shuttles, the rods 0 0, levers N N, cams K K, shaft L, toothed wheel L. shaft 0 and pinion thereon, link 0, wheel U, pinion b, means for operating the shaft 0 and for supporting the shuttle-boxes,

the picker-sticks B R, picker-straps r a", picker-shaftsT T, provided with arms T T and t t, picking-hammers, constructed as described,

and mounted on the shaft L, the shafts n 02, provided with arms m m and p p, gear-Wheel 1;, provided with the cams u a, and the pinion w, all arranged to operate substantially as and for the purpose set forth.

\VILLIAM HENRY BAIRSTOW.

Witnesses:

J OHN A. WIEDERSHEIM, A. P. GRANT.