US140894A - Improvement in looms - Google Patents

Description

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` V Looms. No. 140,894. Patenred1u\y15,1873.

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GEORGE O ROMPTON, OF WORCESTEIL MASSACHUSETTS.

IMPROVEMENT IN LOOMS.

Specification forming part of Letters Patent No. 140,894, dated July 15, 1873 application tiled November 9, 1872.

To all whom it may concern:

Be it known that I, GEORGE GEoMPToN, of the city and countyof Worcester, in the State of Massachusetts, have invented an Improvement in Looms; and I do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention, sufiicient to enable those skilled in the art to practice it.

My invention relates partly to the arrangement of the driving and shipping motions of a loom, and partly to the arrangement of the harness motion. The harness motion is of that class in which upright harness-levers are employed; and my invention consists in the specific organization of the harness mechanism in connection with the mechanism that actuates it; and this, and the details of construction and arrangement of the general driving mechanism constituting my invention,

will be best understood from the description thereof. v

The drawing represents a loom frame and mechanism embodying my invention.

Figure l shows the loom in side elevation. Fig. 2 is an end elevation thereof. Fig. 3 is a plan.

a denotes the loom-frame.` b is the frame or part of the frame in whichy the harness motion is mounted. c d denote twoV of the upright levers of the harness mechanism pivoted at el, and connected at top and bottom with the top and bottom of the respective harness` leaves, and each having an outwardly-extending arm, j', to the outer end of which is joint- `ed a jack bar or lever, the weight of which carries it toward a pattern-cylinder, e, the pins of the cylinder raising the jacks to throwr them into position to be caught by the lifter-bar, while such jacks as remain resting upon the cylinder will be moved by the depresser-bar. At one end of the pattern-cylinder shaft is a crown-wheel, g, into the notches of which a pin, h, of a wheel, i, intermittently engages,

the wheelz'being on the upper end of avshaft,

k, carrying at' its lower end aubevel-wheel, l, driven by a bevel-wheel, m, on the shaft o, the crown-wheel connection enabling the pattern cylinder to be freely turned in either direction. On the shaft k that carries the pinwheel i, the pin of which intermittently engages with the wheel g of the pattern-cylinder, is a sleeve, w, which directly carries the wheel z', and immediately beneath this sleeve a* is a sleeve-cam, yi, the straight edge of which is adapted to bear when the cam is turned for operative action of the parts against a pin, z, on the shaft, and thus hold the parts and g in close'relation; but when the camsleeve is so turned as to bring its cam edge or incline against pine, this sleeve may be lowered on the shaft, and thus permit the sleeve .r also to be lowered to disengage the pinwheel from the wheel g. This enables the pattern-cylinder to be thrown out of engagement with the harness and other mechanism, so that the cylinder can be freely turned for repairs, inspection, &c.,witl1out the necessity of taking down the machine or any part of 1t.

To a crank-pin, p, extending from the wheel m, a link, q, is jointed, the opposite end of said link being jointed to an arm, r, of a rocker-lever fulcrumed on a shaft, s, the upright arm t of this lever, and a similar arm at the opposite end of the shafts, being jointed to the tops of levers u that carry the depresserbar c and evener'bar w, and the pendent arms .fr being jointed to the tops of leversy that carry the lifter and evener-bar z, the levers u' and y being pivoted upon a shaft, j. The levers a y are thrown outward and drawn inward by the rocking movement imparted to the lever-arm r by its connection with the shaft o, and by such movement of the lever the lifter, depresser, and evener-bars are reciprocated to successively distribute and even the harness-levers. The hooks of the jackj bars that are thrown ,upby the pins of the pattern-cylinder engage with the outer edge of the lifterbar z, causing the harness-levers, to which such hooks are connected, to be so moved as to raise the harness-leaves connected to such levers, and the hooks that are not raised are in position to catch the depresserbar and cause the levers connected therewith to be so moved as to depress the harnessleaves connected thereto, inward movement of the levers u y causing the innerY edge of the lifter-bar z, and the inner edge of the evener-bar w to bring the leversinto one plane and even the harness-levers. a2 denotes the main shaft of the loom, said shaft having a pinion, b2, meshing into and driving a gear on the shaft d2, the gear e2 meshing into and driving a pinion, f2, on the shaft o. At the outer end of the shaft a2 are three pulleys, g2 h2 ft2, the pulley h2 being a loose pulley, the pulley g2 being fast upon the shaft, and the the pulley i2 being a reversing-pulley, loose upon the shaft, but connecting with a gear, k2, fast upon the shaft, by a train of gearwheels, Z2 m2 n2, rotation of the pulley g2 by the driving-beltu1 turning the shaft a2 to drive the loom, and rotation of the pulley i2 by the driving-belt in the same direction reversing the movement of the main shaft. The loose pulley turns on a sleeve, upon the outer end of which is fixed a fly-wheel, 192, and the belt is made of such width that, when it is shifted from the loose pulley h2 to the fast pulley g2, it laps over and continues to drive the loose pulley, so that the rotation of the main shaft is governed by the momentum of the liy-wheel, while, when the belt is slipped back to the loose pulley, which is made wider than the fast pulley, the loom mechanism is instantly released from the momentum of the flywheel, enabling the brake to quickly stop the loom. The shipper-fork is connected to a shippenrod, q2, jointed at its outer end to one arm of a bent lever, T2, whose other arm is jointed to the upright shipper-lever s2.

When the lever is thrown in so as to rest against a shoulder, t2, to which it is held by a suitable spring, a2, the shipper-rod is drawn back, so that the fork holds the belt upon the fast pulley. Vhen thrown from such shoulder it is drawn outward by the stress of the spring and lodges against a shoulder, c2, causing the shipper-rod to be moved outward to force the belt onto the loose pulley. If the lever be released from this shoulder and forced out to the outer end of the slot wz, the shipper-rod will be still further moved, and will force the belt onto the reversing-pulley to reverse the motion of the main shaft and the mechanism directly driven by it.

a02 denotes a brake, made to partially encompass the periphery of a brake-wheel, y2, fast on the main shaft, this brake being on top of an arm, z2, pivoted at a3. The brake is jointed to one arm of a lever, b3, whose other arm is connected, by a rod, 03, with a vertical lever, d3, pivoted at e3, said lever di being connected at its top with a horizontal lever, f3, lying under the beam g3, and pivoted at h3, this lever f3 extending through the frame a, its outer end being just over an arm, i3, extending from the top of a vertical lever, k3, fulcrumed at Z3, the lower arm of the lever 7c3 bzeing drawn inward by the stress of the spring u When the shipper-lever is thrown in and into engagement with the inner shoulder t2, it presses against a projection, a3, from the arm fia, and throws back the lever k3. Ihe lever k3 and its connections with the brake are then loose, and the brake is held out'of contact with the wheel y2 by a slight spring. But when the shipper-lever is slipped from the shoulder t2 to the shoulder Q12 to slip the belt upon the loose pulley, it passes the projection n3, and the arm i3 is then thrown in by the stress of the spring u2, and a pin, g3, upon sald arm strikes the lever f3, throwing it back, and causing it to press back the lever 7c3, the movement of which draws up the brake-rod c3, and

causes the lever b3 to press the brake to the wheel, so that the movement of the shipperlever to shift the belt also automatically applies the brake to stop the main shaft.

The horizontal lever f3 has a projection, r3, which is struck by the lathe-dagger to knock off the loom, the lever extending through the frame, and having at its outer end an arm, s3, which lies against the end of a lever, t3, at the opposite end of which is a projection, u, lying against the shipper-lever.

When the lever f3 is struck by the dagger its end presses out the outer arm of the lever t3, thereby forcing the inner arm thereof against the shipper-lever, and dislodging it from the notch t2, the spring u2 then causing the shipper-lever to be thrown to the shoulder c2, and shifting the belt from the fast to the loose pulley, the movement of the shipper-lever causing the brake to be automatically applied, as before described.

n3 denotes the picker-shaft. Upon this shaft is an arm, w3, splined to the shaft so as to turn it, but sliding on the shaft, and having upon one side an inclined face, x3, and on the other side a straight face. Upon the shaft d2 are two opposite arms, ya, and, as the shaft turns forward to operate the lathe, the arms yB alternately strike the incline m3 and turn the shaft and throw the picker-staff; but when the shaft d2 is moving reversely the arms ya, in striking the back of the arm w3, slide said arm on the shaft, and impart no motion to the shaft, so that, in reversing the movement of the shaft d3 and of the mechanism of the loom, the picker-staff motion is inactive, and no shuttle is thrown.

I claiml. The combination and arrangement, substantially as shown and described, of the gears l m, shaft k, pin-wheel t', crown-wheel g, and pattern-chain or cylinder, with respect to the upright harness-levers, the jack resting upon the pattern-chain or cylinder, and the lifter, depresser, and evener-bars operated by the rocker-arms, levers u y and link q connecting the arm r with the wheel.

2. In combination with the loom mechanism, the pulley g2 fast upon the shaft a2, and the loose pulley h2 fast upon an auxiliary shaft which bears the fly-wheel p2, and a shipper mechanism holding the belt with relation to both pulleys, substantially as and for the purpose described.

3. In combination with the fast pulley g2, loose pulley h2, and reversing-pulley i2, a brake mechanism and a shipper mechanism, that in shifting the belt to the loose pulley applies the brake x2, and in shipping the belt to the reverse or fast pulley releases the brake, substantially as described.

4. The combination of the lever f 3, operated by the dagger to release the shipper-lever, with the lever d3 that applies the brake wz by means of the intermediate devices, substantially as described.

5. In combination with the shaft v3 that operates the picker-staff, the sliding cam or ineline w3 that is turned by the arms g3 on the shaft d2 in the forward movement of said shaft, but is slid upon said shaft by said arms With-

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