US678294A - Loom. - Google Patents

Description

"0.673,294. Patented my 9, |901. w. F. DRAPER a c. F, noPEn.

L 0 l l Application ma. mr. ao,-19o1.)

(No Model.)

Ill Hl no. 678,294. Patented my 9,'l9ol.

w. r. nnAPEn a c. r. noPEn.

' LOOM.

l (Application filed Mar. 20, 1901.) .(Nn Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT OFFICE.

WILLIAM F. DRAPER AND CHARLES F. ROPER, OF HOPEDALE, MASSACHU- SETTS, ASSIGNORS TO DRAPER LAND, MAINE. l

COMPANY, OF SAME PLACE AND PORT- Loom.

srncrrrcairron forming part of Letters ratent No. 678,294, dated iuiy e, 190i.

Application filed March 20, 190]..

To ctZZ whom t may 'concern/.-

Be it known that we, WILLIAM F. DRAPEE and CHARLES F. RQPER, citizens of the United States,- and residents of Hopedale, in the county of Worcester 'and State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specificatiomlike characters on the drawings representing like parts.

This invention has for its object the production of an organized loom of great simplicity in its construction and characterized by increased accuracy and definiteness of operation.

Our invention is particularly adapted for looms provided with mechanism 'for automatically replenishing the filling when necessary, as will appear more fully hereinafter; but some of its features are also valuable with a plain loom of ordinary construction.

A filling-replenishing mechanism largely depends for its successful operation in actual practice upon an accurately or definitely positioned shuttle at the instant the filling is changed, whether the shuttle be changed with the fresh supply of illing or the filling be replenished in the shuttle. In order to attain such accuracy of position of the shuttle or to prevent breakage of mechanism if such position is not attained, various devices have been proposed and applied-such as binders, shuttle-checks, and feelers-to determine if the shuttle is properly positioned, improper positioning of the shuttle acting through the feeler to prevent operationof the filling replenishing mechanism. Protector mechanism is also a component part of all looms as now constructed to effect the stoppage thereof if the shuttle is improperly boxed or is not thrown entirely through the shed.

In an application filed May 9, 1900, and bearingSerial No. 16,052 (th`e invention of one of us) a novell form of shuttle-checking meansV is described and broadly claimed, depending upon the mechanical principle that 'if a moving body is brought into engagement 5o with a body at rest of substantially the effective weight of the moving -body the latter Serial No. 62,039. (No model.)

will be brought'to rest at .the moment of ini-v pact, while the motion is transferred to the body which was at rest. The practical embodiment of such principle applied to a shuttie-check results in stopping short the flight of the shuttle at a definite place-Viz., in the shuttle-boX-without rebound or overrunning. In lour present application we have shown such shuttle-checking means with filling-replenishing means, and as the shuttle is stopped bythe former at a definite point-in other words, accurately positioned-we are enabled to absolutely dispense with a shuttlethrown with sufficient force to strike the checking means a blow hard enough to effect the proper operation of said checking means, and as the speed gradually decreases when the power is shut off, as at noontime, it be- -came necessary to provide means for automatically stopping the loom before the critical rate of speed is reached, meaning thereby such a rate as will prevent proper operation of the shuttle checking means. Ve have accordingly provided means operative upon a predetermined decrease in the running speed of the loom to automatically stop the same, which means we refer to as speedcontrolling means. Inconnect-ion with such means we prefer to employ suitable brake mechanism which will operate substantially simultaneously with the speed-controller to `prevent the loom from gradually running down or turning over unduly after the power has been cut off therefrom. By the coperation of the speed-controller and sh little-checking means protector mechanism is superfluous, and consequently we are enabledto dispense therewith. rIhus we have an automatic IOO loom provided with illing-replenishing mechanism operative without the usual protector mechanism and shuttle feeling devices, greatlyreducing the number of parts and simplifyingthe construction verymaterially. On an ordinary loom without illing-replenishing mechanism such speed-controller is also of great utility for reasons above stated.

The various novel features of our invention will be hereinafter described,and particularly pointed out in the following claims.

Figure l is a top or plan view of a portion of a loom centrally broken out to save space, provided with automatic iilling-replenishing mechanism and embodying one form of our present invention. Fig. 2 is a left-hand side elevation thereof, kthe filling replenishing mechanism at the opposite side of the loom being omitted. Fig. 3 is an enlarged View, in side elevation, of one form of speed governor or controller. Fig. 4i is a top or plan View of a portion thereof, and Fig. 5 is an enlarged front elevation of the shuttle-checking means at one end of the lay.

In the organized loom herein illustrated the iilling-replenishing mechanism is arranged to operate prior to complete exhaustion of the filling in the shuttle, breakage of the filling operating in usual manner through a fillingfork to effect actuation of the stopping mechanism.

Referring to Fig. l, the main frame A, breast-beam A40, lay A3, the filling-feeder F for the filling-supplies, shown as iilling-carriers b, the transferrerf, the operating or controlling rock-shaft d, rocked to effect the operation of the tilling-replenishing mechanism, the notched holding-plate N, the shipper NX, the pivotally-mounted feeler-arm fx fgx, the stop 11X, against which the arm f2X is held by a spring, (not shown,) the shuttle-box B, slotted in its bottom at 10, the shuttle-box BX, having an aperture 3 in its front Wall, through which the feelerfX enters, and the self-threading shuttle S, having a slot 4in its side wall, whereby thefeeler can feel the filling in the shuttle, are and may be all as in United States Patent No. 662,320, granted November 20, 1900. So, too, the slide m, on which is mounted the filling-fork mx, the vibrating wefthammer lV, the slide-bar c, latch-carrier o5, fulcrumed thereon, controlled by the arm fzx of the feeler, and the arm d3, fast ou the rockshaft d to be engaged by the slide-bar when moved outward to rock said shaft and effect actuation of the filling-replenishing mechanism, are as in said patent. The end n2 of the knock-olf lever u n2 passes under the upper end of the arm (Z3 and lies in the path of the outer end of the slide m, the arrangement shown being such that when the fork mx detects absence of filling the outward movement of the slide m will operate the knockoif lever to release the shipper N and stop the loom.

The operation of the lling-feeler fx is substantially as described in the patent referred to and it is not necessary to further describe the same herein.

The picking mechanism may be of any suitable character, and herein only the pickers P P are shown, they operating in connection with the shuttle-checking means, which latter will be briefly described, referring to Figs. l and 5.

A momentum member E, preferably made of metal and recessed at its inner face, as at e, to receive the back ofthe picker,is mounted on pivots eX, extended through ears e' at the lower end of the member and supported on lugs e30 on the end of the lay, Fig. 5.

To limit movement of the member E, a controller, shown as an arm e2, is fulcrumed on the lay at @3,'and at its free end it is provided with a longitudinal slot e4 to receive alateral stud e5, projecting from the momentum member, the ends of the slot limiting the swinging movement of the said member in both directions. Normally the momentum member is beyond the picker and adjacent thereto, and when the shuttle in its liight engages the picker the latter is brought against the momentum member, the momentum of the shuttle being transmitted thereto through the intermediate picker and the member E swings outward, while the shuttle is brought to rest at the proper and definite point in the shuttie-box without any rebound or overrunning. Mounting the inertia or momentum member so that its-center of gravity is between its fulcrum and the slot of the controller the said member will normally resume its position shown in Fig. 5 and at the left-hand end of Fig. l, and it will return thereto after the shuttle impact and stoppage. It will be understood that checking means will be provided at each end of the lay, as shown in Fig. l.

The operation of the momentu11i-checking means will not be affected by allowable changes in the running speed of the loomsuch variations as would naturally occur in a large mill-and so, too, the shuttle may vary somewhat in width without interfering with the operation of the stopping means.

It has been found in practice that the shuttlc-check should have an effective weight at least equal to the weight of the shuttle, so that the latter will neither follow the check after striking nor rebound, and the check is so pivoted that it automatically returns by gravity to its normal position after the lay has passed the filling-changing position-that is to say, after the lay in its traverse has reached the position in which filling is automatically replenished-this being substantially at the front center in looms provided With filling-replenishing mechanism. This shuttle-checking means is not claimed herein per se, as itforms the subject-matter of claims in the other pending application hereinbet'ore referred to.

While it is true that the ruiming speed of the loom may vary somewhat without inter- IOO IIO

fering with the action of the shuttle-checking means described, it is also true that when the speed decreases to or passes beyond a predetermined or critical point the shuttle-checking means will not operate properly-as, for instance, when the power is shut off-because the shuttle will not be thrown hard enough to permit coperation with the checking means. The power is not shut off instantly, but gradually, and the gradual slowi'u g down of the loom speed would result in a failure of the checking means to operate before the loom had stopped, with the result that the shuttle would probably be improperly boxed for a number of picks. To prevent such an occurrence, and also to prevent as far as may be the stoppage of the loom with the shuttle in the shed, we have combined with the other instrumentalities forming a part of the loom means operative upon a decrease in the ruiming speed thereof to a predetermined rate to automatically stop the loom, and one embodiment of our invention is illustrated herein.

Referring to Figs. 2, 3, and 4, the loom side has mounted to slide upon it the usual frog FX, provided witha catch or contact member f5, held in place between the side guides f6, and the arm f7 is adjustably secured to the frog by a bolt f8, Fig. 4, projecting forward to cooperate with a knock-off lever fg, (see Fig. 2,) pivoted on the loom-frame below the breast-beam and adapted to engage and release the shipper when the frog' is moved in the direction of the arrow 30, Fig. 3. A dog f 1 is pivotally mounted on the lay in a bracket f, as herein shown, the free end of the dog traveling back and forth upona deector (112, which is' adj ustably secured to the top of the frog by screws 18, Fig. 4, extended through longitudinal slots C113 in the deflector, the latter at its forward end being bent upward, as at dm, the top of the upturned portion being substantially on a level with or slightly above the upper transverse edge of the contact member f5. When the lay beats up, the point of the dog travels along the front portion of the deector and then up and over the lifted end d, and so long as the speed of the loom is high enough the end of the dog will jump the gap bet-Ween the deflector and the member f5 of the frog and will pass over said member f5 without engaging the same, and, manifestly, as long as this condition of affairs continues the frog will remain in lits normal inoperative position. When, however, the running speed of the loom decreases sufficiently to permit the end ofthe dog to drop after it passes the end d of the deflector, it will then hit the contact-piece f5 and the frog will be moved forward in the direction of the arrow 30, to thereby swing the knock-off arm fg and release `the shipper. The speed-controlling means herein shown may be designated as of the hit-and-miss type, the member f 10 thereof missing the contact member of the frog until the speed has decreased to a certain rate, after which it will hit said contact member and move the frog. As shown in Figs. 2 and 3, the dog flo has projecting from its under side a stop projection f, which by engaging an adjacent part of the lay or the lay-sword A12 will prevent improper depression of the dog. By adjusting the deflector relatively to the piece f5 the length of the gap is regulated. The higher the speed at which lthe loom is to operate the longer the gap, and vice versa. Any other suitable form of speed-controlling mechanism may be eml ployed provided that it will operate Ato automatically effect the stoppage of the loom when the running speed thereof has decreased to a predetermined point. With such a controlling mechanism the loom is stopped before its speed decreases to such a rate that the operationl of the picking mechanism is rendered uncertain or inaccurate.

When looms are run at high'speed, the momentumy of the various operating parts is usually sufcient to turn the loom over one or more times after the belt has been shipped, and to prevent such turning over and to stop the loom as promptly as possible we prefer to use brake mechanism in connection 'with the other features hereinbefore referred to, and in Fig. 2 we have illustrated a brake mechanism substantially such as is shown and described in United States Patent No. 653,153, granted July 3, 1900, wherein a brake-Wheel CX is secured to or forms a part of the fast pulley C5, rigidly secured to the crank-shaft CG, the belt-shifter B2 (onlypartly shown) serving to shift the belt (not shown) from the fast pulley to the loose pulley 0^ when the shipper is released. A brake D, mounted on an arm D13, pivoted to the loom side, is connected by a rod du with the frog FX, the forward end of the rod being slotted at elle to receive a stud d17 on the frog. The brake-actuator d, fulcrumed at a2 on the loom side and having an upturned toe d', is'and may be as in said Patent No. 653,153, the actuator being moved by the action of a weight W when released by operation of the stopping means, as in said patent, the toe or. acting upon an adjustable stop 50 and the connecting-rod dl. When the dog flo engages the contact-piece f5 and moves the frog forward, the brake mechanism will be instantly rendered operative to stop the loom and substantially simultaneously with the release of the shipper N 'by or through the knock-off lever fi. The brake will also be set independently of the movement of the frog by or through the actuator a and its weight W, as

in Patent No. 653,153, referred to, or as in Patent No. 593,070, dated November 2, 1897, whichshows and describes in more detail the structure of the brake mechanism.

So faras we are aware, it is broadly new to IIO in the running speed thereof, and we believe it to be broadly new also to provide a loom with means to stop the latter automatically upon a decrease in the speed therepf to a predetermined rate, and accordingly our invention is not restricted to the precise construction and arrangement of parts herein shown and described nor to the particular construction of the various mechanisms which form the elements of the combinations set up in the following claims, as we have shown one practical embodiment of our invention without attempting to show or describe various changes or modifications which may be made by those skilled in the art without departing from the spirit and scope of our invention.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a power-loom, means operative upon a predetermined decrease in the running speed thereof to automaticallystop the loom.

2. In a power-loom, stopping means therefor, and aspeed-governor for said means, operative upon decrease of the running speed of the loom to a predetermined rate to automatically eil'ect the actuating of the stopping DIQtHS.

3. In a power-loom, stopping mean s,includ ing a shipper, a speed-governor, and devices actuated thereby upon a predetermined decrease of the running speed of the loom to release the shipper and stop the loom.

4. In a power-loom, brake mechanism, and means operative upon a predetermined decrease in the running speed of the loom to render the brake mechanism operative.

5. In a power-loom, a driving-shaft, fast and loose pulleys thereon, a brake to coperate with the fast pulley, a shipper, and means operative upon a predetermined decrease in the speed of the driving-shaft to move the shipper into stopping position, and to set the brake.

G. In apoWer-loom, a member to control the starting and stopping of the loom, normally inoperative brake mechanism, and means operative upon a decrease in the running speed of the loom to a predetermined rate to move the controlling member into stopping position and to render the brake mechanism operative.

7. A loom, havingin combination, picking mechanism, means which by or through its inertia stops the shuttle in a substantially definite place in the shuttle-box while the running speed of the loom is above a predetermined rate, and means operative at substantially such rate of speed to automatically stop the loom, whereby stoppage of the loom with the shuttle in the shed is prevented and the use of protector mechanism obviated.

8. A loom having, in combination, a picker, a movable check arranged to take up the momentum imparted bythe shuttle to the picker and to stop the shuttle correctly boxed, while the speed of the loom exceeds a predetermined rate, mechanism to automatically provide the shuttle with fresh filling when correctly boxed, means to determine the time of operation of said mechanism, and means operative upon decrease in the speed of the loom to substantially the predetermined rate to automatically stop the loom, whereby protector mechanism and shuttle-feeling means are obviated.

0. In a loom, a shuttle, stopping means, shuttle-checking means, comprising a momentum absorbing member the effective weight of which is at least equal to that of the shuttle,and an impact memberinterposed between said momentum-absorbing member and the shuttle, the momentum of the latter being transferred to the momentum-absorbing member by or through the impact member,leaving the shuttle at rest correctly boxed, and means operative to automatically stop the loom upon a decrease in the speed thereof to a rate below which the proper operation of the picking mechanism will be prevented.

10. In a power-loom, the lay, stopping means, including ra shipper, and releasing means for the latter, including a member carried by the lay, and a normally inoperative member with which the member on the lay cooperates upon a decrease in the running speed of the loom to a predetermined rate.

11. In a power-loom, the lay, the shipper, and releasing means therefor, including a dog pivotally mounted on the lay, a frog, and a deflector to engage and deiiect the tip of the dog at each beat of the lay and prevent its engagement with the frog While the speed of the loom is maintained above a predetermined rate.

12. In a power-loom, the lay, a dog pivotally mounted thereon, stopping means, a frog to control the operation thereof, and a detlector near the frog and in the path of the dog, the latter jumping from the defiector over the frog at each beat of the lay until the speed of the loom decreases to apredetermined rate, whereupon the dog will engage the frog and therethrough operate the stopping means.

13. In a power-loom, stopping means, and a hit-and-miss controller therefor, said controller being maintained inoperative to effect the actuation of the stopping means while the speed of the loom exceeds a predetermined rate.

14. In a power-loom, mechanism to provide fresh supplies of filling, means to effect the operation thereof upon failure of the filling or exhaustion thereof in the shuttle to a predetermined extent, the lay having a shuttlebox, a shuttle to receive a supply of filling when definitely positioned in the shuttle-box, picking mechanism, means which by or through its inertia stops the shuttle in the shuttle-box in such definite position, and means operative upon decrease of the running speed of the loom to a predetermined rate to automatically stop it.

IOO

15. In a loom, a shipper, the lay having a shuttle box, a shuttle picking mechanism therefor, means which by or through its inertia stopsthe shuttle accurately positioned in the shuttle-box, mechanism to replenish the filling when the latter fails, or is exhausted to a predetermined extent in the shuttle,said mechanism being operative only when the shuttle is accurately positioned in the shuttle-box, brake mechanism for the loom, and means operative upon a predetermined decrease in the running speed of the loom to release the shipper and to render the brake mechanism operative.

16. In a loom, a shipper, ymeans controlled by an abnormal condition of the filling to release the shipper, and means operative upon a predetermined decrease in the running speed of the loom to release the shipper, to stop the loom.

17. In a loom, a shipper, means controlled by an abnormal condition of the filling to release the shipper, means operative upon a predetermined decrease in the running speed of the loom to release the shipper, to stop the loom, and normally inoperative brake mechanism rendered operative upon actuation of either of said means to release the shipper.

18. A loom having, in combination, means operative upon a predetermined decrease in the running speed thereof to automatically stop the loom, a shuttle-box, a picker, Aand a momentum shuttle-check cooperating therewith to stop the shuttle at a substantially detinite place inthe shuttle-box While the loom is running at the proper speed, the effective Weight of the check being at least equal to that of the shuttle.

19. A loom, having in combination, means operative upon a predetermined decrease in the running speed thereof to automatically stop the loom, a shuttle-box, a picker, a momentum shuttle-check which stops the shuttle at a substantially definite place in the shuttle-box While the loom is running at proper speed, the effective weight of the check being at least. equal to that of the shuttle, and means to control the check.

` 20. A loom having, in combination, a movable Weighted check adapted to take up the momentum and be moved into abnormal position by impact of the shuttle on the picker, thereby stopping the shuttle at a substantially definite place, the effective weight of the checkbeing at least equal to that of the shuttle, means to limit such movement of the check, and means operative to automatically stop the loom upon a decrease in the running speed thereof to a predetermined rate.

21. A loom having, in combination, a picker, a Weighted swinging momentumcheck mounted beyond the picker and normally adjacent thereto, thebloW of the shuttle on the picker being transmitted thereby to the check, swinging the latter and stopping the shuttle in a substantially definite place,

and means operative upon a predetermined decrease in the-running speed of the loom to automatically stop the same.

22. A loom, having in combination, a shuttle, means to actuate it, a momentum-check which stops the shuttle in a substantially delinite place, the effective weight of said check being at least equal to that of the shuttle, and means operative upon a predetermined decrease in the running speed thereof to automatically stop the loom.

23. In a poWer-loom,'brake mechanism, means operative upon a predetermined decrease in the running speed of the loom to 'render the brake mechanism operative to quickly stop the loom, a shuttle, means to actuate it, and a momentum-check which stops the shuttle in a substantially denite place, the effective Weight of the check being at least equal to that of the shuttle.

24. A loom provided with mechanism to automatically replenish the filling When the shuttle is in a definite position, a picker, a

movable check normally adapted to rest adjacent the back thereof, the effective Weight of thecheck being at least equal to that of the shuttle, and means to control the check when moved, the momentum of the shuttle being transmitted through the picker to the check, so that the check moves While the shuttle is brought to rest in position to receive a supply of filling, combined with means operative upon a predetermined decrease in the running speed of the loom to automatically stop the same.

25. A loom, havingin combination, the lay, a picker, a check pivotally mounted on the lay beyond and adjacent the picker, the effective Weight of said check being at least equal to that of the shuttle, the pivotmf the check being located eccentric to its center of gravity to cause its return automatically to normal position, means to limit the movement of said check due to impact of the shuttle upon the picker, the shuttle stopping at a 'substantially definite place as a result of the impact, and means operative upona predetermined decrease in the running speed of the loom to automatically stop the same.

26. A loom, having in combination a lay, a shuttle, a check Which is moved away from its normal positionby theimpact of thek incoming shuttle and which returns automatically to said position after the lay has passed the front center, and means operative upon a predetermined decrease in the running speed of the loom to automatically stop the same.

27. A power-loom having, in combination, a lay, a shuttle, a check which is moved away from its normal position by the impact ofthe incoming shuttle, and which returns automatically to said position after the lay has passed the front position, stopping means for the loom, brake mechanism and a speed-governor operative upon decrease of the running IOO IIO

shuttle-box, brake mechanism, a shipper, and means, operative upon a predetermined decrease in the speed of the driving-shaft of the loom, to move the shipper into stopping position and to set the brake.

In testimony whereof We have signed our names to this specification in the presence of two subscribing Witnesses.

WILLIAM F. DRAPER. CHARLES F. ROPER.

Witnesses:

GEORGE OTIs DRAPER, ERNEST W. Woon.

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