US637113A

US637113A - Loom.

Info

Publication number: US637113A
Application number: US72088199A
Authority: US
Inventors: Henry I Harriman
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-06-17
Filing date: 1899-06-17
Publication date: 1899-11-14
Anticipated expiration: 1916-11-14

Description

Patented Nov. l4, I899. H. l. HABRIMAN.

LODM.

(Application filed June 17, 1899. p

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No. 637,|l3.

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(Application filed June 1'7. 1899.1 "No Model.) 7 Sheets-8heef 7,

his c/ iiforneys.

UNITED STATES PATENT OFFICE.

HENRY I. I'IARRIMAN, OF NEW YORK, N. Y.

LOOM.

SPECIFICATION forming part of Letters Patent No. 637,1 13, dated November 14;, 1899. Application filed June 17, 1899. Serial No. 720,881. (No model.)

To ctZZ whom, it ntay concern:

Be it known that I, HENRY I. HARRIMAN, a citizen of the United States, residingat New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Looms, of which the following is a specification, reference being bad therein'to the accompanying drawings.

The invention relates to weft-replenishing looms on the order of that which is presented in United States Letters Patent granted to me June 13, 1899, No. 626,834.

My patent just referred to describes and claims certain automatic instrumentalit-ies which are under the control of weft-indicating devices that act to institute the operation of the said instrumentalities when the work: ing-weft supply assumes the predetermined condition calling for a replenishment thereof. These instrumentalities when brought into place operate to occasion a suspension of the weaving, and they effect the replenishment of the said working-weft supply during such suspension, after which the weaving is resumed. The said patent presents also provisions for pick-finding, by means of which to secure for the reception of the first pick of fresh weft after the replenishment a reopening of that shed in the round or cycle of shed formations which was deficient in its supply of weft or filling at the time of the detecting action of the weft-indicating devices which brought about the weft replenishment.

The present invention comprises various improvements which are applicable to the loom of my patent above mentioned. The said improvements will be described with reference to the accompanying drawings, in which latter the preferred embodiments of the same are illustrated. For convenience in making clear the connections and relations in which the improvements are intended or are capable of being employed I have shown herein certain portions of the instrumentalities and mechanism of my patent, certain features being as in my application for United States Letters Patent filed May 8, 1899, Serial No. 715,907. 7

Having reference to the drawings, Figure 1 thereof is a view showing in front elevation portions of a loom having applied thereto the preferred embodiment of my present inven- -which are represented in Fig. 6.

tion. Only such parts of the loom are shown as are required to appear in order to assist in presenting the nature and relations of the invention, the remainder being omitted in order to secure clearness. Fig. 2 is a view in elevation of the change end of the said loom. Fig. 3 is a view showing the hopper or magazine in rear elevation. Fig. tis a view showing certain portions of the loom in rear elevation. Fig. 5 is a view showing in plan the shedding-cams and certain of the parts which are concerned in the working thereof and in pick-finding. Fig. 6 isaview showing in side elevation the weft-fork at the change end of the loom and certain parts which cooperate therewith. Fig. 7 shows in plan the parts Fig. 8 shows in perspective part of the framework of the loom and a modified arrangement of picking mechanism. Fig. 9 isa View, on an enlarged scale, showing a portion of the lay and certain parts applied thereto. Fig. 10 is a view in section on line 1O 10 of Fig. 4 on an enlarged scale. Fig. 11 is a view of cam-disk n and its ratchet n Figs. 12 and 13 show modified forms of the cam-disk of. Figs. 14: and 15 are elevations of the main-and auxiliary weft-fork devices, respectively.

The drawings show the end frames at a of an ordinary plain loom, aswell as portions of the breast-beam a thereof, portions of the front and rear cross-girths a and a respectively, portions of the crank-shaft b and the cam-shaft c, and the driving gear-wheels b and c on the said shafts. They show also the lay-beam d, a lay-sword d, and one of the pitmen or connecting-rods d joining the lay with the crank-shaft b.

I have herein illustrated the features of my present invention as embodied in connection 7 with instrumentalities for effecting replenish ment of the working-weft supply by ejecting ordischargin'g from the lay the spent or failed shuttle and substituting a reserve shuttle. It is to be understood, however, that the main features of my invention are not limited to use in connection with instrumentalities of this precise character or class.

I will first describe briefly the weft-replenishing instrumentalities.

As in my prior patent and application, I have shown herein a store of reserve shuttles arranged in a hopper or magazine, which is represented at e, the same being located adjacent to the breast-beam at the supply end 01' change end of the loom. The shuttles in the said hopper or magazine are indicated at ff, Figs. 1, 2, and 3, while the working shuttle upon the lay is indicated at f in Figs. 2 and 9.

At the time at which the spent or failed working shuttle f is ejected or discharged from the lay it is contained within the shuttle-box at the change end or supply end of the loom and compressed between the swell or hinder g and the shuttle-box front h. (See Figs. 2 and 9.) The binder g is borne against by the protector-finger g, the latter being mounted on an arm 9 of the protector-shaft. (Not shown.) For the purpose of relieving the pressure of the swell or binder 9 against the working shuttle f in order to facilitate the operations of lifting the shuttle-box front, inserting the reserve shuttle, and restoring the shuttle-box front to position the rocker g is provided, it being mounted on the lay at the under side of the lay-beam, adjacent the outer end of the protector-shaft, one arm of the said rocker being arranged to act against the said arm 9 The rocker g is operated at the required time in the working of the replenishing instrumentalities through the agency of a connection 9 extending therefrom, made flexible in part to enable it to pass around a direction-changing guide-sheave at 9 adjacent to the fulcrum of the lay, and joined to a lever g, that is actuated by means of a cam g on the so-called change-shaft m.

For the purpose of providing for the withdrawal and replacement of the shuttle-box front h the said front is mounted on the forwardly-extended arms of a rocker h, which is pivoted at 77, in suitable bearings at the rear of the lay-beam, the rocker being held in its normal position with the front 71 in place by means of spring lbs. The rocker h is moved at the proper time through the agency of a connection it", extending from its rear arm and made flexible in part to pass around a direction-changing sheave at g, the said connection being joined to a lever 71. operated by a cam h on the change-shaftm.

For the purpose of ejecting the spent or failed shuttle from the shuttle-box at the change end or supply end of a loom after the shuttle-box front It has been lifted an ejector-plate -i is mounted to slide forward and back beneath the swell or binder g. For the actuation of the said ejector t' a rocker t" is connected therewith, the said rocker t" being mounted in bearings t at the rear of the laybeam and being acted upon by a spring i which serves to hold the ejector in its retracted or real-most position, the said rocker being moved at the proper time through the agency of a connection 2' made flexible in part and passing around a direction-changing guide-sheave at g and engaging with a lever 2' operated by a cam i on the changeshaft m,these ej ector-operating arrangements being substantially as in my application for Letters Patent filed May 8, 1899, Serial No. 715,907. I j I For the purpose of transferring the bottom reserve shuttleffrom the hopper or magazine 6 to the shuttle-box on the lay after the discharge of the spent or failed shuttle from the latter an injectorj is provided, the same being mounted on a supporting-arm j, which is pivoted, as at 7' at a point adjacent to the fulcrum of the lay. The injector is moved at the proper time by a connection 7' extending from arm j to a leverj operated by a camj on change-shaft m. The said cam is constructed to occasion an excess of movement of the injector in order to insure that thelatter in being moved to meet the lay shall find the latter, a spring being employed as a part of the connection between arm j and leverj in order that it may yield when theinjector brings up against the lay. At its upper end the injector is furnished with rearwardly-projecting curved armsf", constituting supports on which a shuttle may lie as it is being carried rearward from the hopper or magazine 6 to the lay. Fingersj are provided on the injector for engagement with the bottom shuttle in the hopper or magazine in the rearward movement of the injector,'these fingers being pivoted atj upon the injector and acted upon by a springj which permits them to yield as they make contact with the lowest shuttle in the hopper or magazine as the injector returns forward, the injector being thereby permitted to pass unobstructedly beneath the stack of reserve shuttles as it returns to its normalposition. (Shown in Fig. 2.) Theshuttle-supporting armsj of the injector are disposed to occupy a forwardly-inclined position in the normal position of the latter, and the lower portion of the shuttle-passage in the hopper or magazine 6 is inclined rearwardly, the bottom of the said hopper or magazine being inclined downward forwardly, whereby to retain the bottom shuttle from misplacement. As in my application aforesaid when the injector stands in its normal position at rest the rear portions of its arms extend beneath the stack of reserve shuttles in the hopper or magazine. The bottom shuttle of the said stack rests on the bottom of the hoppera slight distance above the upper sides of the said arms, whereby all the shuttles are supported.

As thus far described the devices are or may be substantially as in my patent aforesaid, except in the respects in which, as indicated above, they are as in my said application.

For the purpose of holding the ejector i locked in its rearward position out of the way of the shuttle at all times except when the shuttle-box front h is lifted I have combined with the same, in accordance with one portion IIO a rocking shuttle-retainer comprising,

of my present'invention, a lock, which herein is designated la. The said lock consists, in the form thereof which is shown in the drawings, of a curved finger attached to or forming part of the rocker h. In the normal position of the rocker h the said locking-finger it projects into a hole in the ejector. When the rocker h is turned to lift the shuttle-box front, the said locking-finger 7c is withdrawn from the said hole, thereby leaving the ejector free to be carried forward for the purpose of engaging with the shuttle and ejecting the latter from the shuttle-box.

For the purpose of more completely assuring against untimely backward movement or escape of the bottom shuttlef from within the hopper or magazine 6 I have combined with the opening which is provided at the rear of the said hopper or magazine, in accordance with another portion of the present invention, as shown in Fig. 3, wings or fingersl Z on a rockshaft 1, the said rock-shaft being mounted in bearings Z Z provided on a support l at the rear of the hopper or magazine and provided with an arm I", with which is connected one end of a spring, as Z By means of the said spring the wings or fingers Z lare maintained in a position to oppose rearward movement of the bottom reserve shuttle in the hopper or magazine. The said win gs or fingers, however, are permitted to yield as the said shuttle is carried rearwardly by the action of the ejector. The innermost of the said wings or fingers has the outer edge of the same made beveled or inclined, as shown in Fig. 3, in order that as the bottom shuttle is transferred from the hopper or magazine to the lay the filling end issuing from the eye of the said shuttle, it previously having been made fast to a suitable filling-end holder, may slip downwardly and inwardly past the said wing or finger without being detained or broken.

It will be perceived that, asin my prior pat.- ent, the replenishing devices are under the operative control of the change-shaft m. As in the said patent, for the purpose of enabling the change-shaft to be operated at the required time it is provided with a sprocketwheel m, and a sprocket-chain m extends around the said sprocket-wheel and also around a second sprocket-wheel m loose on a rotating loom-shaft, herein the cam-shaft c, a clutch being employed in connection with the said mechanism for the purpose of permitting the change-shaft to be placed in and out of driving relations with the cam-shaft. One portion of the invention comprises improvements in the said clutch and in the controlling or operating means therefor. In the present embodiment of the invention the members of the said clutch consist of a movable dog m that is pivoted upon an arm m fast with the sprocket-wheel m and a tooth m, that is provided at the periphery of a disk m fast upon the camshaft. A spring m acts on the dog with a tendency to bear its engaging end into the path of rotation of the 'tooth, and when such spring is permitted to act the engagement of the dog with the tooth causes the sp rocket-wheel m to rotate in unison with the cam-sh aft, and thereby occasions the rotation of the change-shaft through the connections which have been described.

For the purpose of determining the times of engagement of the dog with the tooth and of its disengagement therefrom I provide a controlling device in the form of a clutchdog disengageiy'which itself is under the operative control of the weft-indicator devices.

I have shown a simple form of clutch-dog controller ordisengager herein at n. It consists of a slide mounted to move endwise through fixed bearings n n on the loom-frame. The rear end of the said disengager is designed to cooperate with the tailof the clutch-dog. A spiral spring 92 surrounding the slide and compressed between a bearing n and a collar n fixed on the slide, acts with a tendency to retract the rear end of the disengager out of the way of the clutch-dog.

It is to be understood that in practice the construction and arrangement of the clutch devices and controller or disengager may be varied somewhat.

As a convenient means of actuating the clutch-dog disengager under the operative control of the weft-indicator devices I provide the cam-disk a This cam-disk in some of its characteristics and relations bears a similarity to the cam-disk of my prior patent. It is mounted upon a pivot 72 on the loom-frame in position to engage with the said disengager. It is furnished with projections 17, M, which are separated by intervening depressions. The cam-disk n stands normally with one of its projections in engagement with the clutch-dog disengager, as

in Figs. 2 and 11. By the said projection the disengager is maintained in position to hold the clutclrdog m disengaged from the clutchtooth in, and consequently the change-shaft remains at rest. During this rest of the change-shaft the clutch-dog stands with its tail under the end of the disengager it, as in Fig. 2. An advance of the cam-disk n to the extent of one step will present a depression thereof to the clutch-dog disengager n. This will permit movement of the latter under the action'of spring m and by such movement of the disengager the clutch-dog will be left free to be moved by its spring m into the path of rotation of clutch-tooth m As soon as the clutch-tooth comes around in the rotation of the camshaft and engages with theclutch-dog the change-shaft will be caused to begin to rotate. Thereby the working of the various instumentalities which are under the operative control of the said change-shaft willbe instituted. As long as a depression of the cam-disk remains presented to the end of the clutch-dog disengager the latter will remain in its inoperative position, the clutch devices will remain in operation, and the to tation of the change -shaft will continue. "When, however, a subsequent advance of the cam-disk brings a succeeding projection on the cam-disk around against the disengager, i t forces the latter into operative position again. \Vhen next after this happening the clutchdog comes around to the disengagcr, as it passes the disengager its tail will wipe against the latter, the result being to turn the clutchdog on its pivot and disengage it from the clutch tooth. Following this action the change-shaft will come to rest, while the tail of the clutch-dog is still in contact with the disengager, as in Fig. 2.

The cam-disk n is moved intermittingly under the operative control of the weftindieating devices. The means of effecting and controlling such movement may be varied to meet the requirements of practice. For example, the said cam-disk is provided with a ratchet-wheel at, (shown in dotted lines in Fig. 2 and in full lines in Fig. 11,) the said ratchet-wheel being engaged by a pawl n carried by an arm n on the indicator rockshaft n. The said indicator rock-shaft is shown provided, as usual, with an arm 11 extending up into position to .be acted against by the forward end of the slide a of the usual weft-fork 02, adjacent to the driving end of the loom. A spring 01 connected with the tail of pawl 02. and with arm a operates to hold the pawl in engagement with ratchet-wheel it. Each time the said slide a is pushed forward in consequence of the engagement of the usual gooscneck 71 with the said weft-fork n the indicator rock-shaft is rocked and operates to advance the camdisk a one step.

So long as the working weft-supply continues in proper condition the cam-disk will not be moved. Assuming, however, that in the flight of the shuttle toward the driving end of the loom no weft is laid in front of the weft-fork at, the engagement of the gooseneck a with the tail of the said weft-fork n in the next ensuing forward beat of the gooseneck will cause the indicator rock-shaft n to be rocked and the cam-disk or" to be advanced one step, carrying the projection u away from the forward end of the clutch-dog disengager 7t and bringing the next succeeding depression of the cam-disk in line with the said end. This permits 'spring a to advance the disengager into its inoperative position, freeing the clutch-dog and allowing it to be placed by its spring in position to engage with the clutch-tooth m with the result that the change-shaft is set in motion and the weft-replenishing instrumentalities are brought into action. The subsequent advance of the cam-disk 07. which brings the next projection n around into action against the clutch-dog disengager, and thereby provides for the disengagement of the clutchdog from the clutch-tooth, is arranged to occur shortly prior to the completion of the rotation of the change-shaft and at or near the completion of the working of the instrumentalities which are under the operative control of the change-shaft. In some cases the said subsequent advance of the cam-disk a may be effected by other means than that which is disclosed herein. Preferably, however, especially when employing weft-fork devices such as now are in use, as a, due, I utilize the said weft-fork n and the described intermediate devices for occasioning each of the successive movements of the cam-disk.

The actuating mechanism for the weft-replenishing instrumentalities is arranged to extend the operations of such instrumentalities throughout a predetermined period corresponding with more than two revolutions of the crank-shaft of the loom, and consequently the action of the weft-indicator devices will be repeated one or more times before the first pick of fresh weft is laid in a shed of the warps. Each of such repetitions of the said action of the weft-indicator devices will result in advancing the cam-disk one step. The spacing of the cam projections it apart on the cam-disk n is calculated, therefore, according to the number of such actions during the period while replenishment is being effected, and preceding the first pick of the fresh shuttle, in order that the last of such actions preceding the first pick of the fresh shuttle may bring a projection 12 around to act upon the disengager n and move the same into position to disengage the clutchdog m from clutch-tooth m.

The extension of the operations of the weftreplenishing instrumentalities throughout a period corresponding with a predetermined number of revolutions of the crank-shaft greater than two is provided for, partly with the object in view of affording ample opportunity for the performance of the various operations which are incident to the replenishment of the workingweft supply and of securing the desired ease and safety of action in effecting such replenishment.

An object in view in the case of the loom of my prior patent is to cause the first pick of fresh weft after the replenishment of the working-weft supply to he introduced into that shed in the round or cycle of shed formations which was deficient in its supply of weft or filling at the time of the detecting action of the weft-indicator devices which brought about the weft replenishment.

I provide in the loom of my prior patent means for suspending the weaving at the time of replenishment during a plurality of shed formations, beginning the count with the said shed, and for resuming the weaving in season to enable the first pick of fresh weft to be laid into a reopening of the said shed.

The suspension of the weaving is effected in the patent by arresting the picking, which renders it possible to extend the operations that are incidental to weft replenishment through as many revolutions of the crankshaft as may be desired. I have herein projoined to the tail thereof a connection 0 ex-v vided an improved arrangement for enabling the picking to be arrested. The said arrangement is shown in Figs. 1 and 2. In the said figures, 0 designates the picking-tappet at the change end of the l0om,the same being mount ed, as usual, upon the cam-shaft c.

The picking rock-shaft is designated. 0'. The arm at the rear end of such rock-shaft carrying the bowl for engagement with the said tappet is designated 0 while a depending arm at the forward end thereof is designated 0 An arm 0 is hung loosely to a ing 0 on the forward end of the picking rock-shaft 0 (see dotted lines in Fig. 1) and carries a dog 0 constructed to engage with arm 0 Herein the said dog is formed with a hole or notch therein, as in dotted lines in Fig. 1, to receive the free extremity of arm 0 and is drawn into engagement with said extremity when the arms are near together by means of a spring 0 connected at one end with the dog and at the other with the arm 0 The arm 0 isconnected by the lug-strap 0 with the picker-staff 0 at the change end of the loom.

For the purpose of disengaging the dog 0 from arm 0 when required the said dog has tending upward and thence partway around a direction-changing guide-sheave 0 suitably supported on the loom-frame, the rear end of the said connection being joined to a lever 0 The said lever is provided with a pin or roller 0 bearing against the periphery of the cam 0 on the change-shaft m. The said cam is termed by me the picking-c011 trolling cam When dog 0 is engaged with arm 0 the picker-staff 0 is actuated every time the picking rock-shaft 0" is rocked by means of tappet 0. When the dog is disengaged from the said arm, the picker-staff remains at rest.

The cam o is shaped to hold the dog o out of engagement with the arm 0 until just prior to the resumption of the normal working of the loom. This resumption is caused to take place at the proper time to cause the first pick of the fresh shuttle tobe made through a reopening of the shed which was deficient at the time the weft-fork n acted to institute the working of the weft-replenishing instrumentalities. As in my prior patent, this reopening of the same shed may be at the end of a single roundor cycle of shed formations or at the end of a multiple of such rounds or cycles,according to the circumstances in practice.

The detecting action of the weft-fork n and cooperating devices occurs only after the flight of the shuttle from the change end of the loom to the driving end thereof. It is apparent, therefore, that if the weft should first prove deficient in the flight of the shuttle in the reverse direction'. 6., from the driving end of the loom to the change endthere would be a delay of one pick before'the said weft-fork and cooperating devices would act. In the loom of my prior patent there would be a new shed formation for the said pick. Consequently, inasmuch as the pick-finding instrumentalities which have been described thus faroperate only to recover the shed which was opened for the pick of the shuttle fromchange end to driving end, the true shed would not be recovered in the event of breakage or failure of the Weft in the flight of the shuttle from driving end to change end in the absence of special provision therefor.

My present invention comprises devices by means of which I am enabled to secure a recovery of the true shed in case the deficiency of weft presents itself in the flight of theshuttle from driving end to change end. These-devices I will now proceed to describe.

I provide auxiliary weft-fork devices which are arranged to operate after the flight of the shuttle from the driving end of the loom to the change end thereof. The said auxiliary weft-fork devices comprise the weft-fork 19, (see Figs. 1, 2, 6, and 7,) the slide p, supporting the said weft-fork, the gooseneck p and the actuating-cam p onthe cam-shaft. When the gooseneck 19 engages the weft-fork p, in case of absence of weft after the flight of the shuttle from the driving end of the loom to the change end, and forces the supporting-slidepf forward, the said slide presses-forward the arm 19 which last has its upper end arranged in front of the said slide and its lower end pivoted to the front cross-girth a The said arm p is connected with devices by means of which to occasiona modification in the working of the shedding cams or tappets. This modification of the said working is intended to cause the first pick of fresh weft to be received in the shed which was found to be deficient by the action of the auxiliary weftfork devices. In order to secure this result, it is necessary to compensate for the fact that the auxiliary weft-fork devices act for the pick next in advance of that for which the regular weft-fork devices act. The presentation of the said shed at the proper time to receive the said first pick of fresh weft may be eifectuated variously in practice. In the present embodiment of the invention I have provided for temporarily arresting the rotation of the shedding tappets or cams. Thus I have so arranged that when the auxiliary weft-fork devices act in consequence of a deficiency of weft in the shed after the flight of the shuttle from the driving end of the loom to the change end thereof a dwell in the shed formations for a period corresponding with one pick is occasioned. In other words, in this embodiment of the invention the procession of shed formations is caused to fall behind one step, and thereby I offset the fact that the regular weftfork does not act until after the pick next succeeding that in which the deficiency of weft first manifests itself.

The dwell in the shed formations is occasioned herein by means of devices operating to leave the shedding tappets or cams at rest for a period corresponding with one pick.

The shedding tappets or cams are designated q q q, Figs. 1, at, and 5. The shedding-treadles are shown at q q q. The tappets or cams q q q are mounted on the jackshaft g which last is driven by means of a train of gears g g g and q. The gear q is mounted on the cam-shaft c. It is loose thereon and provided with a clutch-face (1 A clutch-sleeve g is feathered upon the camshaft and is constructed and arranged to engage with the clutch-face The said clutchsleeve is under the control of a shipper-lever q. A spring q acting on the said shipperlever, holds the clutch-sleeve normally in engagement with the gear q, and thereby the jack-shaft is driven. The shipper-leverq is mounted to swing horizontally on a pivot q applied to the rear cross-girth (1 To the rear end of shipper-lever a dog q is hung,with capacityto move vertically about a pivot the said dog being acted upon by a spring (1 tending to hold the free end thereof raised. \Vith the said dog is connected one end of a connection 13 ext-ending from the arm 17*, the said connection being made flexible in part to enable it to pass around the direction-changing guide-sheaves p 19. From the guide-sheaves the connection 235 extends upwardly to the dog 1 hen the auxiliary weft-fork p is engaged by the gooseneck p and the slide 1) and arm 19 are pushed forward, the pull which is transmitted through the connection 11 draws down the free end of the dog q into the path of rotation of a side tappet g on a disk (1 fast on change-shaft m. This occurs at a time when the change-shaft m is standing still; but the dog is held in its depressed position by means of a latch 1 acted upon by a spring q". lVhen subsequently the change-shaft is set in rotation through the dictation of the regular weft-fork n and the devices cooperating therewith or controlled therefrom, the said side tappet (1 acts against the dog q, and thereby turns the shipper-lever (1 on its pivot and disengages the clutch-sleeve g from the gear g. This disconnects the jack-shaft g from the cam-shaft and arrests the rotation of the former, with its shedding tappets or cams. After the withdrawal of the clutch-sleeve from the gear 1 the continued rotation of the former in unison with the cam-shaft brings the outerv faces of its teeth around into position to bear and slide against the outer faces of the teeth of the clutch-faceq of gear q. The two sets of teeth are of such length, measured circumferentially, that they hold the clutch members apart until after the completion of approximately one revolution of the crank-shaft of the loom. The faces of the teeth of the clutch-sleeve are made inclined, in order to permitsaid teeth to slip gradually into the spaces between the teeth of the clutch-face Q7 of gear Q6, and thereby diminish the shock which is incident to the rengagement of the clutch members. Sufficient play between the teeth of the two 0pposing sets is provided for to permit of easy entrance of each set of teeth among the other set.

In order to enable dog q to be moved by its spring (1 out of the path of rotation of the tappet (1 after the latter has occasioned the required movement of the shipper-lever q", a second tappet (1 is provided on the disk q, it acting on the latch (1 at the proper time to disengage the latter from the said dog g.

It is necessary that the auxiliary weft-fork devices should be rendered inoperative after the regular weft-fork devices have been brought into action In cases in which the deficiency of weft occurs in the flight of the shuttle from the change end of the loom to the driving end and is duly detected by the regular weft-fork devices it is unnecessary for the auxiliary devices to act at all. So, also, in cases of deficiency occurring in the flight of the shuttle from the driving end to the change end, the auxiliary weft-fork devices, after they have acted and have operated to modify the working of the shedding instrumentalities, should be prevented from acting a second time subsequently to the ensuing detecting action of the regular weftfork devices.

Vith the foregoing ends in view I have provided the following instrumentalities for controlling the working of the auxiliary-weftfork devices: Upon the indicator rock-shaft n is made fast an arm 71 (See Figs. 1, 2, 6, '7, and 15.) This arm extends rearwardly adjacent to and below the slide 19 for the auxiliary weft-fork 19. Through one of several holes n in the said arm passes a wire a, carrying a collar 92 thereon above the arm, the said wire being attached at its upper end to a lever n, which is pivoted at n on the slide 1). The rear end of the said lever is bent laterally (see Figs. 6 and 7) and extended above a pin a, projecting rearwardly from the weft-fork. The detecting action of the regular weft-fork devices in rocking the indicator rock-shaft 12 serves to raise arm n and, through the described connections, operates to turn lover a, so as to cause it to bear upon the pin 01 This tilts the auxiliary weft-fork 1), so as to prevent its tail from being engaged by the gooseneck 19 The goosenecks 12 and 19 act for successive picks; but in order to enable the regular weft-fork devices to operate through the lever 01 to prevent the auxiliary weft-fork p from becoming engaged by gooseneck p the cam 71 for actuating the main gooseneck 71, is made with adwell, which holds the latter forward at each beat thereof until after the auxiliary gooseneckp has been advanced to feel for the auxiliary weft-fork 1). (See Fig. 14:.)

It has been stated herein that the spacing of the cam projections it apart on the camdisk a is calculated according to the number of actions of the weft-indicator devices during the period while replenishment of the working-weft supply is being effected and preceding the first pick of the fresh shuttle. The particular form of the said cam-disk which is shown in Fig. 2 has been fixed by the fact that the illustrated loom has been designed with especial reference to the employment of either two, three, or six harnesses, the parts being constructed and combined to restart the picking and the normal working of the loom after a suspension thereof, including the sixth shed formation, beginning the count with the shed formation preceding the detecting action of the regular weft-fork devices. The seventh shed is a repetition of the said first shed whether two, three, or six harnesses are employed, (six being a multiple of both two and three,) and consequently in cases where the deficiency of weft occurs in the said first shed the weaving will be resumed by the pick through the seventh shed without any break in the continuityof the weave of the fabric being produced.

I have herein represented provisions for operating three harnesses; but this is merely by way of illustration, and the manner of utilizing the invention in connection with other numbers of harnesses will be obvious without further explanation.

In the present case in order to secure the resumption of the normal working of the loom in seasonfor the seventh pick the changeshaft is driven from the cam-shaft by driving connections giving the change-shaft half the speed of the cam-shaft, thereby causing the change-shaft to make one revolution to four revolutions of the crank shaft. The gooseneck 01 engages with the regular weftfork and acts to move the Weft-fork slide n forward in the loom at about the time of the second pick of the failed shuttlet'. 6., the pick back from the driving end of the loom to the change end thereof. The next four picks (by which should be understood also revolutions of the crank-shaft) are occupied by the working of the replenishing instrumentalities, the actual picking of the shuttle being arrested in consequence of throwing out of action the picking devices at the change end of the loom, after which the normal working of the loom is reinstituted in season for the seventh pick.

Having reference to Fig. 2, it will be seen that the first advance of cam-disk n (it occurring at about the time of the second pick) will carry the acting projection 01? away from clutch-dog disengager n and bring a depression in line with the latter which will permit the disengager to assume its inoperative position. The second advance of the cam-disk (it occurring at about the time of what ordinarily would be the fourth pick) still leaves the depression in line with the disengager. The third advance of the cam-disk (it occurring at about the time of what would ordinarily be the time of the sixth pick) brings the next projection 11 around, so as to cause the clutch-dog disengager to be pushed rearwardly. This disengages the clutch-dog m and renders the change-shaft m inoperative.

Vhen using a number of harnesses other than two, three, or six, I contemplate sometimes varying the relative speed at which the change-shaft is driven through change in the proportions, &c., of the driving connections in order to restart the picking and normal working of the loom at the end of a round or cycle of shed formations or a multiple of such round or-cycle. When this is the case, the spacing apart of projections n will be varied proportionately. I prefer, however, to retain in theloom the same driving connections and continue to drive the change-shaft at the same relative speed as provided for herein and to secure the required different number of shed formations prior to the resumption of weaving by permitting the weft-indicatingdevices to act idly one or more times before the clutch is permitted to act. This may be effected by simply increasing the circumferential length of projections of, as indicated-in Fig. 12, so as to permit the cam-disk n to be advanced one or more times before the succeeding depression is brought around into position to receive the end of the clutch-dog disengager. This will permit the regular working of the loom to continue with the failed shuttle for two, four, or more revolutions of the crankshaft after the first detecting action of the weft-indicator devices before the working of the loom is modified and the weftreplenishing' instrumentalities are brought into action. In some cases an intermediate projection, as a Fig. 9, may be provided on the cam-disk a This will act after the weftreplenishing instrumentalities have begun to work andhave ejected the failed shuttle. It

\ will move the clutch-dog disengager to unclutch the change-shaft and suspend the weftreplenishing operations for two, four, or more picks, after which the movement of the camdisk that is occasioned by the action of the weft-indicator devices will bring the next depression of the cam-disk around in position to allow the clutch-dog disengager to resume its inoperative position. The change-shaft thereupon will be clutched to the camshaft again and the working of the replenishing instru mentalities will be proceeded with to completion.

The speed-changing devices, by means of which the speed of the loom automatically is reduced for the performance of the weft-replenishing operations and afterward is restored for the resumption of the normal working of the loom, are herein as in my prior patent. They comprise the cam-disks r and s on the change-shaft 'm, the arms 4 and s, acted upon by the said cams, the belt-shifters r and 5 with which the said arms are connected, the springs 4: and s acting to move the belt-shifters in opposition to the said cams,

the fast-speed driving-band r, the slow-speed driving-band 8 the usual fast and loose band-pulleys r and 4- respectively, on the driving-shaft b, for cooperation with the fastspeed driving-band T and the supplemental fast and loose band-pulleys s and s, respectively, on the said driving-shaft, for cooperation with the slow-speed driving-band s. A pin 25 or its equivalent is applied to the front of the lay-beam below the inner end of the shuttle-box at the change end of the lay to catch and detain the inner end of the ejected shuttle as the latter falls from the shuttleboX. This pin acts to uphold the said inner end of the shuttle, so that the outer end of the latter shall descend first.

The usual shipper-handle for use in stopping the loom by hand when required is shown at a, Fig. 1.

The tines of the weft-forks in the form thereof which is illustrated in the drawings extend downward from or close to the pivotal supports of the weft-forks. This gives a better distribution of the weight than in the case of ordinary weft-forks and lessens the tendency of the tail of the fork to rebound upwardly away from the gooseneck in running the loom at high speed. The forks are shown set as near the lay as possible in order that the weft may be brought into contact with the tines thereof as early as possible in the forward beat of the lay, so as to permit early working of the goosenecks. In order to enable the heads of the goosenecks to engage with the tails of the said weft-forks, the said heads are extended rearwardly in the form of rigid hooks, as shown, the said heads being also arranged at a height above the top of the working shuttle on the lay in order to avoid making contact with the said shuttle in case it should lie on the raceway in front of either gooseneck at the time of the advance of the lay.

Fig. 8 illustrates a modified pick-governing arrangement, such as is capable of being employed with another form of picking mechanism. In Fig. 8 the pickingtappet 0 acts against a bowl or roller 0 and thereby depresses a treadle 0 which is pivoted upon a horizontal pivot-pin 0 to a bracket 0 fastened to the rear cross-girth a IVith the front end of the said treadle is engaged the strap 0 the latter passing over the guide pulley o and being connected with the pickerstafi" 0 at the change end or supply end of the loom. For the purpose of rendering the said picker-staff inoperative when required relative lateral shift is provided for between picking tappet or cam 0 and the bowl or roller 0 Herein the said shaft is provided for by mounting the said bowl or roller 0 upon a support 0 which is pivoted on treadle 0 at o by a vertical pivot, so as to be free to swing laterally. For the purpose of swinging the support 0 on treadle 0 so as to move the bowl or roller 0 into and out of operative position with relation to the picking tappet or cam o, the said support is provided with a lateral arm 0 to which is connected by a pin 0 a short link 0 The rear end of the said link 0 is connected by a horizontal pivot at 0 with a slide 0 working through a slideway in the rear cross-girth a. The rear end of the said slide is forked and carries a crosspin 0 working in a longitudinally-extending slot 0 in an arm or lever 0 The said arm or lever is pivoted at 0 to a bracket 0 fixed to the rear cross-girth a, and carries a pin or roller 0, bearing against the periphery of the picking-controlling cam 0 on the changeshaft on. A spring 0 connected with the arm or lever 0 holds the pin or roller 0 into contact with the said cam. In the normal or working positions of the parts the pivoto is in horizontal alinement with the pivot 0 of the picking-treadle 0 I do not lay claim, broadly, herein to the combination, with the Weft-indicating devices, weft-replenishing instrumentalities, &c., of pick-finding instrumentalities operating to recover the true shed corresponding with the first deficient pick in each direction, nor to pick-finding instrumentalities under operative control of the change-shaft to shift the shedding mechanism to reopen the required shed, inasmuch as claim thereto is made in my pending application, Serial No. 726,732.

I claim as my invention 1. In a loom, in combination, the ejector, and the lock whereby the same is held in its inoperative position.

2. In a loom, in combination, the movable shuttle-box front, the ejector, the lock Whereby the ejector is held in its inoperative position, and operating connections whereby the lock is caused to engage with the ejector While the front is in working position and to release the same when the front is withdrawn.

3. In a loom, in combination, the shuttlebox front, means for withdrawing the same from adjacent the shuttle and afterward replacing the same, the ejector, a rocker connected with the said ejector, means to operate the said rocker to cause the ejector to expel the shuttle from the shuttle-box after the withdrawal of the shuttle-box front, and a movable lock to hold the ejector in its retracted position until after the withdrawal of the shuttle-box front.

4. In a loom, in combination, the movable shuttle-box front,the ejector, the ejector-lock, and the rocker whereby the said front and lock are operated.

5. In a loom, in combination, the changeshaft, change instrumentalities under the operative control thereof, a rotating loom-shaft, power-transmitting connections intermediate said loom-shaft and said change-shaft including a movable clutch-dog and a clutch-tooth to be engaged thereby, Weft-indicating devices, and a clutch-dog disengager cooperating with the said clutch-dog under the opere'aila V ative control of the said weft-indicating devices to thereby regulate the working of the change-shaft.

6. In a loom, in combination, the changeshaft, change instrumentalities under the operative control thereof, a rotating loom-shaft, power-transmitting connections intermediate the said loom-shaft and said change-shaft including a pivoted clutch-dog and a clutchtooth to be engaged thereby, weft-indicating devices, and a clutch-dog controller cooperating with the said pivoted clutch-dog to regulate its engagement with the said clutch-tooth and itself operatively connected with the weftindicator devices,whereby the Working of the change-shaft is governed.

7. In a loom, in combination, a rotating loom-shaft, weft-replenishing mechanism, driving connections intermediate the said loom-shaft and said mechanism including a pivoted clutch-dog and a clutch-tooth to be engaged thereby, weft-indicatin g devices, and instrumentalities under the operative control of the said weft-indicating devices to regulate the engagement of the said pivoted clutchdog with the clutch-tooth.

8. In a loom, in combination, a rotating loom shaft, weft replenishing mechanism, I

driving and operating connections intermediate the said loom-shaft and said mechanism including a pivoted clutch-dog and a clutchtooth to be engaged thereby, weft-indicating devices, a cam-disk operated therefrom, and a clutch-dog-controlling device operated from the said cam-disk to regulate the engagement of the clutch-dog with the clutch-tooth.

9. In a loom, in combination, the Weft-indicating devices, the cam-disk operated therefrom, the sliding clutch-dog disengager in engagement with the said cam-disk, the rotatingloom-shaft,weft-replenishing mechanism, and driving and operating connections for said mechanism intermediate the same and the said loom-shaft including a pivoted clutchdog and a clutch-tooth to be engaged thereby.

10. In a loom, in combination, automatic Weft-replenishing mechanism, the pickerstaff at the change end of the loom, the picking rock-shaft and its arm, a loosely-hanging arm connected with the said picker-staff, a movable dog to operatively connect the said arms at their free extremities, and a pickingcontrolling cam in operative control of the said dog to disconnect the said arms at the time of weft replenishment.

11. In a loom, in combination, automatic weft-replenishing mechanism, the pickingcontrolling cam, the picker-staif at the change end of the loom, the picking rock-shaft and its arm, the arm loosely hung from the said rock-shaft, the pivoted dog to connect the said arms to move together, and connections from the said picking-controlling cam to the said pivoted dog to move the latter and disconnect the said arms at time of weft replenishment.

12. In a 100111, in combination, weft-indicating devices operative when the condition of the working-weft supply necessitates replenishment thereof, a change-shaft, instrumentalities under the control of the said devices to operate the said change-shaft, weft-replenishing instrumentalities under the operative control of the said change-shaft, a pickingcontrolling cam connected with the changeshaft, the picker-staff at the change end of the loom, the picking rock-shaft and its arm, the arm loosely hung from the said rock-shaft, the pivoted dog to connect the said arms to move together, and connections from the said pickin g-controlling cam to the said pivoted dog to move the latter and disconnect the said arms at time of weft replenishment.

13. In a loom, in combination, Wef -indicating devices detecting for picks of the shuttle in both directions, Weft-replenishing instrumentalities operating under the control of the said weft-indicating devices, pick-governing instrumentalities brought into operation by the detecting action of said weft-indicating devices for the pick in one direction and acting 0 to modify the picking, and shed-governing instrumentalities brought into operation by the detecting action of said devices for the pick in the opposite direction, and acting to modify the shedding, all cooperating to recover the true shed corresponding with the first deficient pick in each direction.

14. In a loom, in combination, weft-indicating devices operative for the pick in one direction when the condition of the working weft supply necessitates replenishment thereof, replenishing instrumentalities and pickgoverning instrumentalities under the operative control of the said devices, auxiliary weft-indicating devices operative for the pick in the other direction, and shed-governing instrumentalities under the operative control of the said auxiliary devices.

15. In a loom, in combination, weft-indicating devices operative for the pick in one direction when the condition of the workingweft supply necessitates replenishment there of, the change-shaft, operating mechanism therefor under the operative control of the said devices, weft replenishing instrumentalities and pick-governing instrumentalities under the operative control of the said changeshaft, auxiliary Weft-indicating devices operative for the pick in the other direction, the shedding-tappets and their operating means, and shed-governing instrumentalities in operative connection with the said change-shaft and under the control of the said auxiliary devices.

16. In a loom, in combination, weft-indicating devices operative for the pick in one direction when the condition of the workingweft supply necessitates replenishment there of, replenishing instrumentalities and pickgoverning instrumentalities under the operative control of the said devices, auxiliary weft-indicatin g devices operative for the pick in the other direction, shed-forming mechanism, and instrumentalities operating under the control of the said auxiliary devices to occasion a temporary dwell of the said shedforming mechanism.

17. In a loom, in combination, shed-forming mechanism having a driving-clutch, a clutchshipper, a shaft having combined therewith shipper-actuating means whereby to effect a temporary unshipping of the said clutch, and weft-indicator devices operating to control the actuation of the said clutchshipper by the said means, whereby the Working of the shed-forming mechanism is modified.

18. In a loom, in combination, the shedforming tappets and their driving connections including a clutch, a clutch-shipper, the change-shaft and its shipper-actuating means arranged to effect a temporary unshipping of the said clutch, and weft-indicator devices operating to control the actuation of the said clutch-shipper by the said means, whereby a temporary dwell in the working of the shed-forming mechanism is occasioned.

19. In a loom, in combination, weft-replenishing instrumentalities, shed-forming mechanism, instrumentalities to occasion a relative shift of the order of shed formations, and weft-indicating devices operative for a pick in one direction to institute the working of the weft-replenishing instrumentalities, and for a pick in the other direction to institute the working of said shifting instrumentalities;

20. In a loom, in com bination,weft-indicating devices operative for a pick in one direction when the condition of the working-weft supply necessitates replenishment thereof, replenishing instrumentalities and pick-governing instrumentalities under the operative control of the said devices,auxiliary weft-indicating devices operative forapick in the other direction, shed-forming mechanism, and instrumentalities under the control of said auxiliary devices operative to occasion a relative shift of the order of shed formations.

21. In a loom, in combination, shed-forming mechanism having a driving-clutch, a clutch-shipper, a dog movablyconnected with said clutch-shipper, a latch to retain the said dog in operative position, a rotatable shaft provided with tappets for engagement with said dog in its operative position to actuate the clutch-shipper and with said latch to allow the dog to assume its inoperative position, and weft-indicating devices operative to move said dog into its operative position for engagement by its tappet.

22. In a loom, in combination, the shedding-tappets, driving connections therefor including a clutch, a clutch-shipper, a dog movably connected with said clutch-shipper, a latch to retain the said dog in operative position, a rotatable shaft provided with tappets for engagement with said dog in its op erative position to actuate the clutch-shipper and with said vlatch to allow the dog to assume its inoperative position, and weft-indicating devices operative to move said doginto its operative position for engagement by its tappet.

23. In a loom, in combination, weft-replenishing instrumentalities, shed-formin g mechanism, instrumentalities to occasion a relative shift of the order of shed formations, weft-indicating devices operative for a pick in one direction to institute the Working of the weft-replenishing instrumentalities, and for a pick in the other direction to institute the working of said shifting instrumentalities, and means to suppress the operation of such devices in the latter case after the operation thereof in the former case.

24. In a loom, in combination, weft-indicating devices operative for a pick in one direc-.

tion when the condition of the Working-weft supply necessitates replenishment thereof, replenishing instrumentalities under the operative control of the said devices, auxiliary weft-indicating devices operative for a pick in the other direction, shed-formin g mechanism, instrumentalities under the control of said auxiliary devices operative to occasion a relative shift of the order of shed formations, and means under the operative control of the main weft-indicating devices for suppressing the action of the auxiliary devices after the former have acted.

25. In a loom, in combination, weft-indicating devices detecting for picks of the shuttle in both directions, pick governing instrumentalities brought into operation by the detecting action of said devices for the pick in one direction and acting to modify the picking, and shed governing instrumentalities brought into operation by the detecting action of the said devices for the pick in the opposite direction, and acting to modify the shedding, all cooperating to recover the true shed corresponding with the first deficient pick in each direction.

26. In a loom, in combination, weft-indicating devices detecting for picks of the shuttle in both directions, Weft-replenishing instrumentalities operating under the control of the said weft-indicating devices, speed-controlling devices operating to temporarily reduce the speed of the loom during replenishment, and appliances also under the control of said weft-indicating devices and operating to recover the true shed corresponding with the first deficient pick in either direction.

27. In a loom, in combination, Weft-indicating devices detecting for picks of the shuttle in both directions, weft-replenishing instrumen talities operating under the control of said weft-indicatin g devices, speed-controlling devices operating to temporarily reduce the speed of the loom during replenishment, pickgoverning instrumentalities brought into operation by the detecting action of the said weft-indicating devices for the pick in one direction and acting to modify the picking, and shed-governinginstrumentalitiesbrought into operation by the detecting action of the said weft-indicating devices for the pick in the opposite direction and acting to modify the shedding, whereby the true shed correresponding with the first deficient pick in each direction is recovered.

28. In a loom, in combination, weft-indicatin g devices operated for the pick in one direction when the condition of the working-weft supply necessitates replenishment thereof, the change-shaft, operating mechanism therefor under the operative control of the said devices, weft-replenishing and pick-governing instrumentalities under the operative control of the said change-shaft, speed-controlling devices also under the operative control of the change-shaft and acting to temporarily reduce the speed of the loom during replenishment, auxiliary weftindicating devices operative for the pick in the other direction, the shedding mechanism, and shed-governing instrument-alities in operative connection with the said change-shaft and under the control of the'said auxiliary devices.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY I. HARRIMAN.

Witnesses:

CHAS. F. RANDALL, LEPINE HALL RICE.