US634681A - Loom. - Google Patents

Description

No. 634,68I. Patented 001.10, 1399t T. BRNDLE & M. D. vSTEERE.

Loom. l (un Model.) @Dumm Mdm' 21' 1899') 3 sheets-sheet l.

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AN0. 634,68. f Y Patented 001.10, 1399.

u T. BmN-LE @L M. STEERE.

Y Loon. (N0 Model.) @www med m' 21"599') 3 sheets-sheet 2,

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No. 634,681. Patented oct.' m, 1393.

- T. BmnnLE @L M. n. STEERE.

LOOM.

(Application mea Feb. 21, 1699.)-

3 Sheets-Sheet 3,

(No Model.)

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UNITED 'STATES PATENT OFFICE.

THOMAS YBRINDLE lAND MERRILL o. sTnERR, oF Pnwruonizfr, Rr-Ionn ISLAND. l Y

LOOM.

SPECIFICATION forming part of Letters Patent Np. 534,681, dated october 1o, 1899. replicas@ nea raam 21,1899.' serai No. questa;` or@ more.) y

To all whom it may concern:

Be it known that we', THOMXS BRINDLE and MERRILL O. STRERE, of Pawtucket, in'

the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Looms, `of which the following is a specification. v

This invention has relation to looms, and

has for its object to increase the capacity and which operate the lay c on the left sideof the' efficiency thereof.

The invention consists in the novel features of construction and arrangement which we will now proceed to describe and claim.

' Of the accompanying drawings, forming a part of this specification, Figure l represents a front elevation of a loom constructed in accordance with our invention with parts broken away. Fig. 2 represents a vertical sectional view thereof. Fig. 3 represents a plan view of part of the shafting, both ythe lays beating up together and then receding together. Fig. 1 represents a detail perspecruns longitudinally of the loom, substantially' in the center thereof, and has cranks d' CZ* connected by pitmen. d2- cl2 to the respective.

lays o o. When the pulley b is driven by powerimparted f rom the belt, the crank-shaft will be revolved and will operate to rock thelays. Those cranks d' cl'l which operate the lay c on the right side of the loom are, as seen in the drawings, set at a half-turn or one hundred and eighty degrees from the cranks d' d',

. loom, so that the two lays when the crankshaft d is'revolved alternately approach and recede from each other. This arrangement equalizes the strain and rack due to the operation of vtheulays, since the forces due to the l) designates the drive-pulley,

inertia of the lays and connecting parts act in opposite directions and tend to neutralize or balance each other. Each side of the loom is provided with suitable harnesses e e, having heddles, through which the warp-threads pass to form the shed, the number of these harnesses being subjected to variation to suit requirements, as will be readily understood.

The harnesses ein the arrangementshownA are mounted in suitable guides on the loomframe and positively operated in a familiar manner by bell-cranks e2 e2, connected 'by links v es es with the harnesses and by longitudinal -rods e4 with harness levers or jacks j, hooked at their upper ends and fulcrumed on a rod' f. The two sets of levers or jacks f f for pperating the harnesses on the two sides of the loom are operated by two sets of path-cams g g 0n a cam-shaft g', the levers having rolls occupying the paths in said cams. The shaft g is mounted in suitable bearings attached to the loom-frame n, and is provided with a bevel-'gear g2, which meshes witha bevel-gear runs longitudinally of the loom, and said shaft 71', mounted on the end ofv a shaft h, which h is connected by suitable gearing y y' y2 with the driving or belt pulley?)` on the crankshaft d, so that when the latter is rotated the shaft h will be revolved and will operate the cams g. Y

Our invention, further, contemplates an improvement particularlyV adapted to narrow-ware looms-such as those for weaving tape, webbing, fringe, ribbon, She-with a ness 'of such looms, and to thisend we provide constructions as follows 7o and m represent shuttles arranged in two banks, the one above the other, on the-lay c, the said shuttles being'positively driven, as is usual in narrowmechanism to be hereinafterdescribed. 7c m'v are shuttle guides 'or races attached by screws 7134 795 and 'm4 m5 to the top portion or back frame c3 of the lay. Between the shuttlc-guides of each series are located the reedspaces occupied by the reeds 7a2 m2. The shuttles are moved, as is customary, across the lview to increasing the capacity and eectiveware looms, and by'ineansof a novel driving f rced-spaces from ono pair of shuttle guides or rests to the next pair, so as to pass the weft or filling thread through the shed formed in the warps by the harnesses. It will be noted that the reeds 7a2 belonging to the upper set or bank of shuttles are located diof warp-threads, and t t represent guide rods or rolls for the warp-threads. u u represent the two breast-beams carrying breast-rods 'u' o', over which the finished fabrics pass. Any suitable or approved forms of take-up and leto may be provided, and the same being farectly above or opposite the shuttle rests orA miliar in the art need not be described.

guides provided for the lower set of shuttles, and, vice versa, the reeds m2 of the lower bank are located opposite the shuttle-rests of the upper bank.

Each of the shuttles 7c m is provided with an individual rack kGfm/G, the racks of the upper bank being on the lower side of the shuttles and those of the lower bank being on the upper side of the shuttles, and located in slots in the inner or adjoining guides k. m of each shuttle-bank are small gear-pinions 7e3 m3. Two of these pinions are provided for each shuttle, and the screws 765 m5, which att-ach the inner guides 7c m' to the lay-back e3, serve as shafts or pintles for said pinions. Located between the upper and lower sets of pinions 7c3 m3 and running longitudinally of the layc is a singleI rack-bar o, having racks o o2 on its upper and lower edges engaging the teeth of the two sets of pinions 7937??,3. At intervals along the rack-bar o the latter' is formed with slots o3, occupied by headed screws or guidestuds 04, screwing into the lay, whereby the rack is guided in its longitudinal movements,

vt-he studs being preferably surrounded by rollers o5. The screws o4 may also serve to attach to the lay a guard-strip 0G, covering the outside of the rack-bar and having offsets or lips 07 covering the outside of the rack-bar between the shuttle-guides 7c m', said guardstrip effectually preventing access of dust to the rack-bar. It will be seen that the reciprocation of the rack-bar 0 operates both sets of sh uttles 7cm simultaneously across the reedspaces in front of the reeds 7a2 m2.

For the purpose of operating the rack-bars o on the two sides of the lay mechanisms are provided consisting of shafts 'i i, provided with bevel-gears i i', meshing with a bevelgear h2 on the shaft 71,. Each shaft 'L' has at its outer end a crank i2, operating in a verti` cal slot formed in a slide j. The latter is mounted in suitable guides on the loom-frame and is connected with opposite ends of the rack-bar 0 by means of rods j and straps 3'2, the latter of which pass over suitable guidepulleys p p on the lay c. -The shaft 7i is rotated from the belt-pulley b by the connections before described, and its rotation imparts motion to the crank i2, and it in turn 4reciprocates the slide j, thereby moving the rack-bar 0 to and fro in the lay c. The gearing is suitably proportioned to move the rackbar once for each backward oscillation of the lay.

q Q represent the warp-beams for supplying the warps to the banks of shuttles. s s represent tension-weights for thc several sets fabric in sight `and permits ready access to each fabric. The arrangement, furthermore, prevents the chang of the warp-threads in the two sets of reeds, which would occur were the fabrics superposed or formed one directly above the other andthe top threads of one shed allowed to cross the bottom threads of another shed. W'e are thus venabled to use different kinds and colors of yarn for the upper and lower fabrics, a proceeding which would be attended with great disadvantages were the warps superposed, as described.

Our improved construction of 'rack-gearing for operating the shuttles is simple and easy-running, and it has the advantage of putting the rack in sight and giving easy access thereto. 'Ve prefer to run the racks on the two sides of the loom lin opposite directions to effect a balance, this being accomplished by setting the wrist-pins t2 on either side of the loom in opposition, as shown in Fig. 3. This balance, together with that provided by mounting the lays to operate in opposition, enables us to run the loom at a higher speed than heretofore and produces very even fabrics.

It will be seen from the foregoing that by means of our improvements the outputof a loom may be greatly increased.

Such of the operating parts of the loom as are well known and not essential to the illustration of our invention have been omitted in the drawings.

We claim- 1. A loom having a suitable frame, two lays located on opposite sides of the loom, a single crank-shaft having cranks for operating said lays,and connections between said cranks and the lays, the said cranks and connections being constructed and arranged to operatein opposition.

2. A loom having a suitable frame, two lays located on opposite sides of the loom, a single crank-shaft having two sets of cranks for operating the respective lays, the cranks of one set being mounted ou a half-turn with respect to the cranks of the other set, whereby the lays are caused to alternately approach IOO and recede from each other, and ptmzm con- In testimony whereof We have axed our meeting said cranks with the lays. signatures in'presence of two witnesses.

3. The combination with the lay-back and THOMAS BRINDLE; the shuttle-guides lo m' and the intervening MERRILL O. STEERE 5 reeds, of the rack-bal' o, and the dust-guard Witnesses:

strip o6 having offsets or lips o'7 covering the H. M. FILLEBROWN,

' rack-bar between said guides k m. ALLAN F. GRANT.

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