US1147250A - Stop-motion for looms. - Google Patents

Description

C. D. LANNING.

STOP MOTION FOR LOOMS.

APPLICATION FILED MAY8,1908.

1,147,250. Patented July 20, 1915.

2 SHEETS-SHEET l.

WITNESSES: IN V EN TOR.

g A 54 66 GAE/1:5 0. Lannhzg 5 5W wm 40 29% ATTORNEYS.

c. n. LANNING.

STOP MOTION FOR'LOOMS.

APPLICATION FILED MAY 8, 1908'.

Patented July 20, 1915.

2 SHEETS-SHEET 2.

1 v Char/e5 D. Lawn/n BY v ATTORNEYS.

GEAR/LES D. LANNING, 015 BOSTON, MASSACHUSETTS.

STOP-MOTION FOR LOOIVIS.

Specification of Letters Patent.

Patented July 20, 1915.

Application filed May 8, 1908. Serial No. 431,597.

To all'whom it may concern:

Be it known that 1, CHARLES D. LANNING, a citizen of the United States, residing at Boston, in the county of Suffolka'nd State of Massachusetts, have invented an improvement in Stop-Motions for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. I g

This invention relates to stop motions and particularly pertains to warp stop .motions for looms, although as regards-certain features thereof it may be of general application for stop motion purposes. I

In order that the principles of the invention may be fully understood, I have typified one embodiment thereof in the accompanying drawings, wherein- Figure 1 is a vertical transverse section of a loom embodying my invention; Fig. 2 is a plan view,-partially in section, of the knock-0d device showing its relation to the parts operative upon warp fault and weft failure; Fig. 3 is a front elevation of o the mechanism shownin- Fig. 2; Fig. 4

is a View, mainly in front'elevation, of one side of a loom to which my invention is applied; and Fig. 5 is a detail of a portion of the means for stopping the loom upon Warp fault. I

An important feature'of my invention is to provide a warpfistopdrop bar feeling mechanism free from any positive connection with the main driving parts of the loom. In this manner extremedelicacy of contact between the feeler and an indicating drop bar may be secured. In the preferred embodiment of the invention, not only is the feeling mechanism free of positive connection with the main driving mechanism of the loom, but also withv the loom stopping or warp stop stopping mechanism proper. Thus the drop bars are relieved of all mechanical strain from either the driving or the stopping mechanism of the loom.

In the present embodiment of my invention I combine a mechanical warp stopping device of similar form with the usual type of weft stopping mechanism. The warp stop feeling mechanism and the warp stop stopping mechanism proper are herein represented as independent of the lay'movement and as actuated by a common means which herein is, a half time or weft, cam. Preferably, and as herein shown, not only are the warp stop feeling,,mechanism and the warp stop stopping mechanism proper disassociated from the lay movement of the loom and actuated by the said weft cam, but the same is also true of the weft stop stopping mechanism. the feeling movements of the feeler are gravity actuated so that contact of the feeler with an indicating drop bar will not damage the latter. -I have, in the present type of my invention, disclosed simple but effective means whereby, in looms equipped with the usual weft stop ,mechanism comprising a weft fork and a weft fork carrierjand means actuated by the movement of said carrier to release the, shipper handle, the same shipper handle releasing means can be'used as part of an independently cotiperative warp fault detecting and loom stoppingmechanism without affecting said weft fork carrier. The reciprocatory or vibratory member other than the lay, and which in this type of the invention is the weft hammer lever, is not only a portion of the weft stop mechanism, but is also a part of the warp stop mechanism, the latter being in its action independent of the weft stopg' mecha nism including'the weft fork and weft fork carrier. I

Referring more particularly to the drawings, the frame of the loom is indicated at 1, it being of any suitable construction. My invention is herein represented as applied to a loom of the type disclosed in the U. S. patent to Coldwell & Gildard, No. 690,636, Jan. 7, 1902, although it will, of course, be apparent that the invention may be applied to any desired type of loom. I have herein indicated warp drops 2 adapted to be mount ed upon the warp threads, 3, which may be suitably supported upon leasing members 4:

adapted (Fig. 4:) to be removabl'y supported in end castings 5, preferably adjustably secured to brackets 6 bolted to the end frame of the loom. If desired, the leasing members 4; may be received in partial lower bearings As herein represented,

- closed in my 7, being held therein by upper partial bearings 8 carried upon bell crank levers 9 pivoted at 10 upon ears uprising from the casting 5, the construction being such that by movement of the indicated bell crank lever 9 to the left viewing Fig. 41 the upper partial bearing 8 may be elevated, thus permitting removal of the respective leasing member. As represented in Figs. 1 and 1, each drop bar is provided with spaced members receiving between them guiding bars 11-11 bolted at opposite ends to the castings 5 and serving together with the lower guiding bars 11 to tie the castings 5-5 together.

By the provision of guide bars, such as 11, below the path of movement of the feeler to be hereinafter described, not only is an indicating drop bar effectively guided in its indicating movement but it is supported both above and below the path of movement of the fecler, and therefore is better adapted to withstand the feeling contact or stroke of the feeler. One of the members of each drop bar is slotted as indicated at 12 to receive rods 13, whereby the drop bars are confined in place. Said rods are inserted through openings in the castings 5 and are held in position by means of detachable pieces 14: bolted over the ends of such openings. By loosening and turning aside or lifting either piece 1-1, the corresponding rod 13 may be removed, thus permitting removal of the drop bars, as disco-pending application No. 287,866, filed Nov. 17, 1905. As indicated most clearly in Fig. 1, each casting 6 is provided with a transverse slot 15 permitting adjustment of the castings 5 toward and from the front of the loom.

From the foregoing description, it will be apparent that the leasing members or warp thread supports 1, the drop bar guide 11, 11' and the rods 13 are all supporte upon the castings 5 which are, in the manner previously described, tied rigidly together. Frequently it is desirable to adjust the position of the said parts to meet the require-- ments of position made necessary by the number of harnesses in the loom. By the described construction, I am enabled, by adjusting the castings 5 in the brackets 6, easily and quickly to adjust as a unit the several parts referred to with relation to the harness supports and without any adjustment of the main driving mechanism of the loom. Moreover, as will be more fully described, the shaft whereon the feeler is supported is likewise carried by said castings 5 and is adjustable with the parts above referred to as a unit.

The cloth roll may be operated by a ratchet gear 16, with which engages actuating pawl 17 pivotally mounted at 18 upon a reciprocatory member 19, herein a weft hammer, pivoted at 20. and adapted to be operated by means of the half time cam 21 on a cam shaft 22, whereby upon alternate beats of the lay the upper arm 23 of the weft hammer is reciprocated to feel for the weft fork 21 upon the weft fork carrier 1 may employ any suitable means, as a holding pawl 26, to prevent reverse movement of the ratchet gear 16. A shipper device of any suitable type is represented (see Figs. 2 and 3) at 27, normally positioned in the usual notch 28 in the breast beam and suitably actuated to stop the loom, as by a knock-off device or lever 29 pivoted at 30 upon the 100m frame. If desired one knock-off lever may be provided to cooperate with the weft stop mechanism and a second knock-off lever to cooperate with the warp stop drop bar feeling mechanism. As represented most clearly in Fig. 2, the weft fork carrier is provided with a portion 32 adapted to impinge upon the knock-off 1ever 29 to stop the loom. 1 may, if desired, suspend the operation of the take-up mechanism upon the occurrence of weft failure, as by providing a lever 33 pivoted at upon the loom frame and engaging the hold-- ing pawl 26, to withdraw it from engagement with the ratchet gear 16, the upper end of said lever 33 being engaged by the weft fork carrier 25 for that purpose. The lever 38 may be so formed that the knockofl lever may be actuated upon the occur rence of a warp fault without interrupting the take-up mechanism. In such event, the knock-off lever 29 is moved from the position indicated in Fig. 1 to the right viewing said figure without movement of the weft fork carrier 25, and hence without movement of the holding lever 26. 1 preferably apply my invention to those looms wherein the previously existing knock-off lever cannot be moved without affecting the take-up, by providing a second knock-off lever, with which cooperates only the drop bar feeling mechanism, and which in turn acts upon the shipping mechanism without affecting the take-up, the previously existing knockoff lever then cooperating only with the weft fault detecting mechanism.

In order to stop the loom upon the occur rence of a warp fault without the use of the lay as a cotiperating element, I employ a movable member which herein is the weft hammer lever 19. Inasmuch as the weft hammer lever, cam and shaft constitute a portion of the train of mechanism for stopping the loom in the event of weft failiu e, I am thus enabled greatly to simplify the parts. Preferably I bolt (see Figs. 1, .2 and 3) a casting 35 upon the knock-off lever and pivotally mount upon said casting. a hunter or lever 36 (see Fig. 1). Herein 1 bolt upon one side of the weft hammer 19 an auxiliary member 37, having head 38 adapted to impinge upon the hunter 36 when the same is not rendered inoperative in the manner hereinafter described, thereby to operate theknock-off lever to stop the loom. If a second knock-off lever be provided, the casting35 and bunter or lever 36 will be mounted thereon instead.

As already stated, one of the objects of my invention is to provide a drop bar feeling mechanism adapted to contact with an indicating drop bar with extreme delicacy and with but very little pressure, so that the drop bar is not deformed or otherwise injured. Preferably I accomplish this result by rendering the drop bar feeling mechanism entirely free from any positive con nection with the main driving means of the loom, and also in this embodiment of the invention by rendering it free of any positive connection with the loom stopping or warp stop stopping mechanism proper. Specifically this is accomplished by so constructing and mounting the parts that the feeling movements of the feeler are imparted thereto by the force of gravity. In the described embodiment of the invention, the drop bars are arranged in a plurality of banks, herein two, and it will be noted that the feeling contact of the feeler with an indicating drop bar in either bank is accom plished by the force of gravity acting upon' the said feeler. Thus, wherever the indicating drop bar may be situated, the contact of the feeler therewith is not occasioned by l the positive action thereon by any portion of the loom driving mechanism, but is solely a non-positive gravity actuated contact. I herein employ a feeler having a path of movement so related to the drop bars that when the latter are normally positioned, they are not encountered by such feeler, but whena drop bar is abnormally positioned, it is encountered thereby. In the present embodiment of the invention, I have represented a feeler 39 fast upon a rock shaft 40 mounted upon knife edge bearings 41 extending inwardly from the lower portions of the castings 5, the rock shaft 40 being suitably recessed upon its under side, as indicated in Fig. 4, to receive such knife edge bearings. By supporting the rock shaft upon the castings 5, I may, as previously indicated, adjust saidrock shaft as a unit with the other members supported upon said castings. The feeler 39 at its upper end is provided with a plate or member 41 adapted upon each oscillation of the feeler to pass between the upper and lower guide bars 11, 11, thereby encountering an abnormally positioned drop bar in either bank.

Preferably I employ means to. remove foreign matter, such as lint, from the plate or member 41 of the feeler. While this may be accomplished inany suitable manner, I have herein (see Fig. l) mounted a suitable strip of felt 41 in a suitable support 41", so that the lower edge of the felt contacts with the upper surface of the plate or member 41 during its movements. In this manner the accumulation-of lint not only upon the plate or member 41, but upon the. ad j acent parts of the loom to which in its feeling stroke it 'mightbeconveyed by the plate or member 40 is prevented. Since, as will be more fully described, the feeler is acted upon in one direction of its movement by the half time or Weft cam 21, its movement is slow and therefore during such movement it may be thoroughly and cleanly wiped by the action of the wiper 41. p It will be apparent that the indicating drop bar in its indicating movement is guided, as previously stated, both by the upper and by the lower guide bars 11, ll,

and that such drop bar is firmly presented to the action of the feeler. As previously stated, in the present embodiment of my invention, the feelerreceives ,a non-positive gravity actuated feeling movement, andthus encounters the indicating drop bar with the minimum of strain. While this result may be accomplished in any desired manner, I have herein for the purpose provided (see Fig. 1) a counterbalance lever 4F2havinga recessed fulcruming portion 43 preferably integral therewith and sufliciently pro longed, as indicated in Fig. 4, to afford an effective support forthe lever. The fulcruming portion 43 'of the lever is received upon a knife edgebearing 44 suitably secured tothe frame of the loom. Oneend of the lever 42 is secured, as by a link 45, to the arm 46 of the lever 39, an adjustable weight47 being, if desired, mounted upon that arm of the lever 42 to which the link 45 is attached. If it be desired to adjust the members carried by the castings 5 with re lation to the harness supports, I in practice shorten or lengthen, as the case may be, the

effective-length of the link 45, herein represented as having a screw threaded portion 45 engaging a socketed portion 45 directlv pinned to the arm 46 of the lever 39; This may be done by removing the pin connection at the lower end of the link 45 or that at the upper end of the socketed portion 45". No other adjustment of the parts is neces sary preliminary to the adjustment .ofl-the castings 55 and the parts carried thereby in the brackets 6. p

The construction and arrangement of the parts are such that'the weight of the arm of thelever 42 to which the link 45is con-.

nected tends constantly to depress the arm 46 and to move the feeler into feeling po sition, indicated in full lines in Fig. 1, with extreme delicacy of action and lightness of contact with an abnormally positioned drop I bar.

Rising from the lever 42 and preferably formed integral therewith is a lever arm 49 extending into the path of rotation of the weft cam 21. The arm 50 of the lever 42 is herein loosely connected with a link or rod 51, the opening in the arm 50 which receives the link or rod 51 being of suiiicient diameter to permit the movement of the arm 50 freely upon the link or rod 51. Spaced nuts 52 and 53 are mounted for adjustment upon the lower screw threaded portion of the said link or rod 51. The upper end of the said link or rod 51 is connected to the hunter or lever 36, the latter heing provided, as indicated in Figs. 1, 2 and 5, with a shoulder 54 adapted, when the hunter drops or descends, to he brought in contact with the under face of a lip 55 upon the casting 35, thus limiting the downward movement of the hunter beyond a substantially horizontal line. The said nuts are so spaced as to permit the movement of the arm 50 in a downward direction without imparting a positive downward movement to the hunter 36, which, together with the link or rod 51, is depressed by the action of gravity. It will thus he apparent that the feeler mechanism proper is non-positively connected to the warp stop stopping mechanism or loom stopping mechanism proper, which in the present embodiment of the invention may he comprehended hy the hunter 36 and the parts directly associated therewith, and including rod 51, to effect the stopping of the loom through the action upon the hunter of the weft hammer 19 and the consequent action of the hunter upon the knock-0K lever 29. It will furthermore he apparent that the warp stop feeler mechanism, the warp stop stopping mechanism proper and the weft stop mechanism not only are disassociated in their action from the lay movement of the loom, but that they are actuated by a single cam utilized for that purpose, which, in the present form of the invention, is the half time or weft cam 21 customarily provided for the actuation of the weft stop mechanism, which so far as the present invention is concerned may he of the usual type. It will furthermore he apparent that by the clescrihed construction, I combine with the usual weft stopping mechanism in a simple manner an effective mechanical warp stopping device.

In the operation of the parts, the weft cam 21 in its rotation in the direction of the arrow thereon actuates the weft hammer lever 19, so that the members 23 and 37 thereof feel for the weft fork 24 and the hunter 36 respectively. If either the weft fork 24 or the hunter he depressed, the knock-off lever is actuated to stop the loom. In order thus to effect the stoppage of the loom upon the event of warp failure, the hunter 36 has been allowed to descend by reason of the depression of the arm 50 of the lever 42 by the preceding rotation of the weft cam 21, which, engaging the arm 49, withdraws the arm 50 from the nuts 52, thus allowing the hunter 36 to fall or he depressed hy the action of gravity. lhe opposite arm of the lever 42, being thus elevated hy the depression of the arm 50, and moving the feeler 39 to the left, viewing Fig. 1, imparts the non-feeling movement to the feeler.

Immediately upon the disengagement of the cam 21 from the arm 49, by reason of the continued rotation of said cam, the arm of the lever 42 to which the link 45 is connected, is lowered by the force of gravity and thus depresses the link 45 and the arm 46, and imparts the feeling movement to the feeler 39. If in such feeling action the plate or member 41 encounters an indicating drop bar, the descent of the said arm of the lever 42 to which the link 45 is connected, is interrupted, the edge of the plate 41 remaining in contact with the indicating drop bar, but with an extremely delicate contact or pressure. Inasmuch as the descent of said arm is interrupted, the arm 50 is not elevated, or at least is not fully elevated, and therefore the end thereof is not brought into contact with the nuts 52. Thus the hunter 36, which has previously descended under the action of gravity, remains down, and hence, when the cam 21 in its continued rotation engages the weft hammer lever 19 and rocks the same, the arm37 thereof encounters the depressed hunter 36 and acting through the knock-off lever 29 stops the loom. If, however, none of the drop hars had descended to an indicating position, then immediately after the depression of the arm 50 by the cam 21 acting upon the arm 49, the opposite arm of the lever 42 (when the cam 21 has passed from engagement with the arm 49) descends to its full extent under the action of gravity, imparting the full feeling movement to the feeler 39 and elevating the arm 50 of the lever 42. The end of said arm 50 encounters the nuts 52 upon the link 51 and elevates the hunter 36 above the path of movement of the arm 37 upon the weft hammer lever. Thus the running of the loom remains uninterrupted.

Having thus described one type or emhodiment of my invention, I desire it to he understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims.

1. A loom having drop hars mounted upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, and a device to contact with the feeler and to remove lint and dirt therefrom.

2. A loom having drop bars mounted upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, and a wiper extending into the path of movement ofsaid feeler so as to contact therewith during the movement thereof, to remove lint and dirt therefrom.

3. A loom having drop'bars supported upon the warp threads, said drop bars being provided with spaced legs, a feeler having a path of movementto intercept an abnormally positioned drop. bar, and means positioned respectively above and below the path of movement of said feeler and. adapted to enter between the. spaced legs of an abnormally positioned. drop bar to support such drop bar against. the contacting movement of the feeler. a

4:- A loom having :side frames, a vertically positioned bracket adjustably connect ed to each side frame so as to be movable toward and fI'Om thGYhZLIIIGSS supports, leasing members for the warp threads and guiding means for the drop bars mounted upon said brackets, the latter having inwardly turned portions below said guiding means constituting bearings a feeler rockshaft mounted upon said inwardly turned portion s, and afeeler mounted upon said rockshaft. l

5. A loom having a lay, drop'bars supported upon the warpthreads, feeling mechanism rendered operative by an indicating drop bar, loom stopping mechanism the weft cam shaft, the weft cam thereon, connections between said: feeling mechanism and said loom stopping mechanism, said connections being directly operated upon by said cam, and supplemental connections between said cam and said loom stopping mechanism. i

6. A loom having drop bars mounted upon the warp threads thereof, a feeler having a pathof movement to intercept an indicating drop bar, and mechanical means to contact with and to remove lint and dirt from the said feeler prior to its interception of the path of movement of an indicating drop bar.

7. A loom having a lay, drop bars supportedupon the warp threads, feeling me'chanism having a gravity induced feeling movement and rendered operative by an indicating drop bar, loom stopping mechanism, cam 21, connections between said feeling mechanism and said loom stopping mechanism operated upon by said cam 21, weft hammer 19 also operated upon by said cam 21 and weft fork 2 f operated upon by said weft hammer 19-, theconnections between the feeling mechanism and'the loom stopping mechanism being distinct from the said weft fork.

8. A loom having a lay, drop bars supported upon the warp threads, feeling mech- 95 anism rendered operativebyan indicating drop bar, loom stopping mechanism, cam 21, a train of lost-motion connections between saidfeeling mechanism and said loom stopping-mechanism, said train of connections including members having lost motion be tween them, said train of connections being operated .upon by said cam 21, wefthammer 19 also operated by said cam 21, and means operated by said weft hammer for operat-' ing the loom stopping mechanism in the event of warp failure.

9.A'loomcomprising loom driving mechanism, warp thread supported drop bars, a drop bar feeler, a counter-balance weighted actuator for said feeler connected thereto at its weighted endand adapted freely to impose upon said feeler its counter-balancing movement, and thereby to impart a feel ing stroke thereto, the weft cam shaft, means directly operative by the weft cam shaft to impart to said feeler and counterbalance actuator a positive return movement and means independent of the lay to stop the loom in the event of detection of an indicating drop bar by the feeler.

10. A loom comprising loom driving mechanism, warp thread supported drop bars, a drop bar feeler rendered operative by an indicating drop bar, and a counter-balance actuator for said feeler separately mounted with respect thereto butoperatively connected thereto and a cam upon the weft cam shaft adapted periodically to impartfthe non-feeling movement to the feeler.

11. A loom comprlsmg warp supported member and said feeler to impart feeling movement to said feeler, and connections between said member and said warp stop shipping meohanism, weft stop mechanism, including a weft fork, and a single cam for actuating said weft stop' mechanism andsaid warp stop shipping mechanism, said connectionsbetween said member and thewarp stop shipping me'chanismbeing independent of the weft fork.

12. A loom comprising warp supported drop bars, a feeler having a path of movement adaptedito be intercepted by an abnormally positioned drop bar, and mecha nism, the feeler having connections independent of the laywith said stopping mech anism and including a gravity actuator and a co-acting member having lost motion with respect to each other. f f 13. A loom comprising'warp supported drop bars,

a feeler having a path of novement adapted to be intercepted by-an abnor' tions between the gravity actuated member and the stopping mechanism including a part having lost motion with respect to said gravity actuated member during the feeling movement of the feeler.

14. In a loom having a lay, a shipper handle, means to retain said shipper handle in loom operating position, and means adapted to throw said shipper handle to loom stopping position; the combination of warp fault detecting and loom stopping devices comprising a shaft, a rotary cam thereon, a weft fault detector and a movable carrier therefor, operative connections between said rotary member and cam and said weft fault detector and carrier adapted to be actuated by the rotary cam to stop the loom upon the occurrence of a weft thread fault, and independently cooperating warp thread fault detecting and loom stopping devices including drop bars mounted upon the warp threads, a feeler having a path of movement to intercept an abnormally positioned drop bar, a gravity actuator connected to said feeler to impart gravity induced feeling movement thereto, said warp thread fault detecting and loom stopping devices being operatively related to said rotary cam, thereby to stop the loom upon the occurrence of a warp thread fault, but operatively inde pendently of the movable carrier on which said weft fault detector is mounted.

15. A loom comprising a lay, a reciprocatory member mounted independently of therl ay, ashipper device, means to retain the same in loom operatingposi-tion, aknockoff device adapted to release the shipper device from said retaining means, weft thread fault detecting means, devices co- ;operating therewith and with said reciprocatory member, whereby the knock-off device is moved and the loom is stopped upon theoccurrence of weft failure, drop bars mounted upon the warp threads, a feeler having a path of movement to intercept an abnormally positioned drop bar, means independent of said weft thread fault detecting means and of. said. devices cooperating therewith and adapted to cooperate with said feeler and with said reciprocatory member and including a gravity actuator, whereby the knock-oft device is moved and the loom is stopped upon the occurrence of warp failure, and a common cam for operating said reciprocatory member and for moving said feeler.

16. A loom comprising warp supported drop bars, a feeler having a path of movement adapted to be intercepted by an abnormally positioned drop bar, a member having gravity induced movements to impart the feeler movements to saidfeeler, loom stopping mechanism proper, and an operating connection independent of the lay between said loom stopping mechanism proper and said feeler and including member having lost motion with respect to each other.

17. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a knockoff device adapted to release the shipper device from said retaining means, a weft fork, a weft fork slide whereon the same is mounted, said slide being adapted to be moved by the reciprocatory member upon the occurrence of weft failure thereby to move the knock-01f device, drop bars mounted upon the warp threads, a feeler having a path of movement to intercept an abnormally positioned drop bar, a gravity actuated bunter mounted upon the knock-off device, and lostmotion operative connections between said feeler and bunter whereby upon the occurrence of warp fault the bunter is permitted to bep-ositionedby gravity in the path of movement of the said reciproeatory member, said operative connections including two members having lost motion with respect to each other. 18. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a lznock off device adapted to release the shipper device fromsaid retaining'means, a weft cam upon the weft camshaft to actuate said reciprocatory member, operatively independent connections between said reciprocatory member and the knock-off device, whereby the latter may be operated in the event either of weft failure or warp fault, drop bars mounted upon the warp threads, a feeler having a gravity actuated feeling movement adapted to be intercepted by an abnormally positioned drop bar, connections whereby the non-feeling movements of said feeler are imparted by said weft cam, and operative connections between said feeler and the knock-oft device.

19. A loom provided with drop bars supported upon thewarp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, the feeling 'movements of said feeler being gravity induced to insure light contact of the feeler with an indicating drop bar, loom stopping mechanism rendered'operativeby said light contact of the feeler, the weft cam shaft, the weft cam thereon, and operative connections whereby the non-feeling movements of said feeler are imparted thereto by said weft cam.

20. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a knockoff device adapted to release the shipper device from said retaining means, a shaft, a cam thereon to actuate said reciprocatory member, connections between said reciprocatory member and the knock-off device to stop-the loom in the event either of weft failure or warp fault, drop bars mounted upon the warp threads, a feeler adapted to be intercepted by an abnormally positioned drop bar, a gravity controller and a lost motion connection between the latter and the knockoif device, said feeler being operatively positioned with respect to said cam to receive therefrom its non-feeling movement.

a from said retaining means, a shaft, a cam thereon to actuate said reciprocatory member, connections between said reciprocatory member and the knock-off device, whereby the latter may be operated in the event either of weft failure or warp fault, connections to operate the knockoff device in the event of warp failure including a weft hammer, drop bars mounted upon the warp threads, a feeler having a path of movement adapted to be intercepted by an abnormally positioned drop bar, said feeler being positioned with respect to said cam to be 0perated thereby, and operative connections between said feeler and said knock-off device, said operative connections being independent of said weft fork.

22. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a knock-off device adapted to release the shipper device from said retaining means, a shaft, a cam thereon to actuate said reciprocatory member, drop bars mounted upon the warp threads, a pivoted feeler having a path of movement adapted to be intercepted by an abnormally positioned drop bar, a lever distinct from but operatively connected to said feeler and to the knock-01f device, said lever being operatively related to said cam, whereby the feeler may receive a-positive, nonfeeling movement, and provisions whereby said feeler may receive a gravity actuated feeling movement. I

23. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a knookoff device adapted to release the shipper de vice from said retaining means, the weft shaft, the weft cam thereon to actuate said reciprocatory member, a bunter operatively related to the knock-off device, drop bars mounted upon the warp threads, a feeler having a path of movement adapted to be intercepted by an abnormally positioned drop bar, provisions whereby upon each movement of rotation of the said weft cam the bunter is brought into the path of movement of the reciprocatory member, and the feelerhas a non-feeling movement imparted thereto, weft stop mechanismand operative connections between the same and said cam.

24. A, loom provided with drop bars sup ported upon the warp threads thereof, feeler having a path of movementto intercept an indicating drop bar, the feeling movements of said feeler being gravity induced to insure lightcontactof the feeler with an indicating drop bar, a weft cam shaft, the weft cam thereon, connections between said feeler andflsaid cam to 'impart the non-feeling movements to saidzfeeler,

and loom stopping mechanism rendered .op Y

erative by said light contact of the feeler withan indicatingdrop'bar; I v i '25. A loom comprising av lay, a reciproca tory member mounted independently of-the lay, a shipper device, means to retainthe same in loom operating position, a knock-01f device adapted to release theshipper device from said retaining means, a shaftya cam thereon to actuate said reciprocatory member, drop bars mounted upon thewarp threads, a feeler operatively connected'with the shipperv device and having a path of movementadapted to be intercepted by an abnormally positioned drop bar, a hunter operatively connected to the knock-0E device, gravity actuated .means whereby said bunter is brought into the path ofmove ment of the reciprocatory member upon each rotation of the-said cam, and connections between said gravity actuated means and thebunter, the arrangement of said;

parts permitting intermittent positive actu ation of said said cam. 1

26. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operatingposition, a knock-off device adapted to release the shipper device from said retaining means, the weft cam shaft, the weft cam thereon to actuate said reciprocatory member, a bunter operatively related to the knock-off device, drop bars mounted upon the warp threads, at feeler having a path of movement adapted to be intercepted by an abnormally positioned drop bar, a gravity actuated member connected to the feeler to impart non-positive feeling movement thereto, said member being so positioned that upon each rotation of said cam the feeler has imparted thereto a drop bar, cam 21, counterbalancelever 42,

gravity actuated means by d9, 50 positioned below said cam and adapted to be directly impinged upon by said cam 21, 100111 stopping mechanism proper including rod 51 and lost movement connections between said rod 51 and said lever 42, 50.

28. A loom comprising among its instrumentalities drop bars supported upon the warp threads, feeling mechanism rendered effective to stop the loom by an indicating drop bar, weft cam 21, counterweighted lever 42, A9, 50 adaptedto be directly impinged upon by said weft cam 21, link 45 connecting said lever and feeling mechanism, loom stopping mechanism proper and connections between said lever and said loom stopping mechanism proper.

29. A loom comprising among its instrumentalities drop bars supported upon the warp threads, feeler mechanism rendered effective to stop the loom by an indicating drop. bar, weft cam 21, lever d2, d9, 50 positioned below said cam and intermittently impinged-upon by said cam, loom stopping mechanism proper, connections between said lever 42, 50 and said loom stopping mechanismv proper, weft hammer 19 also operated by said weft cam 21, and means operated by said weft hammer for actuating the loom stopping. mechanism proper in the event of warp failure;

30'. A loom comprising among its instrumentalities, drop bars supported upon the warp threads, feeler mechanism rendered effective to stop the loom by an indicating drop bar, loom stopping mechanism proper, a train of connections between said loom stopping mechanism proper and said feeler mechanism and including lever A2, 4L9, 50, weft cam 21 acting upon said connections, and a supplemental connection operated by said weft cam and actuating said loom stopping mechanism proper in the event. of either weft or warp fault.

31. A loom comprising among its instrumentalities drop bars supported upon the warp threads, feeler mechanism rendered effective to stop the loom by an indicating drop bar, cam 21, counterbalance lever d2, 49, 50 positioned below said cam and adapted to be directly impinged upon by said cam 21, loom. stopping mechanism proper including rod 51 and operative connections between but permitting relative movement of said rod 51 and said lever 42, d9 and 50.

32. A loom comprising among its instrumentalities drop bars supported upon the warp threads, feeler mechanism rendered efiective to stop the loom by an indicating drop bar, cam 21, a counterbalanced lever positioned below said cam and adapted to be directly impinged upon by said cam 21, loom stopping mechanism proper including rod 51 and lost motion connections between saidrod 51 and said lever.

33". A loom having side frames provided with bracket, supporting members, a pair of opposite upright brackets, one pair of said parts having slots directed toward the harness supports and the other pair of said parts having bolts entering said slots, whereby said brackets may be adjusted to ward and from said harness supports, leasing members for the warp threads, and guiding means for the drop bars carried by said brackets, the latter having inwardly directed lower ends, a feeler rockshaft mounted upon said ends, and a feeler mounted upon said rockshaft.

34-. A loom having side frames provided with bracket, supporting members, a pair of opposite upright brackets, one pair of said parts having slots directed toward the harness supports and the other pair of said parts having bolts entering said slots, whereby said brackets may be adjusted toward and from said harness supports, leasing members for the warp threads, and guiding means for the drop bars carried by said brackets, the latter having inwardly directed lower ends, constituting bearings, a feeler rockshaft mounted upon said ends, a feeler mounted upon said rock shaft, a weft cam shaft, a weft cam thereon, a member operated by said weft cam, and adjustable connections between said member and said feeler.

35. A loom having side frames provided with bracket, supporting. members, a pair of opposite upright brackets, one pair of said parts having slots directed toward the harness supports and the other pair of said parts having bolts entering said slots, whereby said brackets may be adjusted toward and from said harness supports, leasing members for the warp threads and guiding means for the drop bars carried by said brackets, the latter having inwardly direeted lower ends, constituting bearings, a feeler rockshaft mounted upon said ends, a feeler mounted upon said rockshaft, a weft cam shaft, a weft cam thereon, a counterbalanced lever operated by said weft earn, and adjustable connections between said lever and said feeler.

36. A loom having a lay, drop bars supported upon the warp threads, feeling mechanism rendered operative by an indicating drop bar, loom stopping mechanism, the weft cam shaft, the weft cam thereon, connections between said feeling mechanism and said loom stopping mechanism, said connections extending below said cam and cam shaft and being operated upon by said cam, and supplemental connections between said cam and said loom stopping mechanism.

37. A loomcomprising loom driving mechanism, warp thread supported drop bars, a drop bar feeler vrendered operative by an indicating drop bar, a pivoted counterbalance actuator for said feeler, the weft cam shaft, and a cam thereon adapted periodically to impart non-feeling movements to said feeler, saidactuator being pivoted substantially directly underneath the said actuating cam.

38. A loom provided with drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp fault, means positively to impart non-feeling movement only to said feeler and gravity actuated means to impart feeling movements to said feeler, a weft hammer, a cam cooperating therewith and connections to said feeler to permit the actuation of said stop mechanism proper through said weft hammer in the event of said warp fault.

39. A loom provided with drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp fault, mechanism actuated to impart positive non-feeling movements to said feeler and receiving gravity induced feeling movements, and a connection between said mechanisms having gravityv induced movements.

40. A loom provided with drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp fault and gravity actuated means independent of the lay and operatively connected to the feeler to effect the actuation of the stop mechanism proper in the event of warp fault, said 1 means including a weighted lever having a link connection to said feeler, and a lost motion connection to said stop mechanism proper.

41. A loom provided with drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp fault and gravity actuated means independent of the lay and operatively connected to the feeler to effect the actuation of the stop mechanism proper in the event of warp fault, and

a cam so positioned with respect to the gravity actuated means that it intermittently contacts therewith to impart positive, non-feeling movements to the feeler.

42. A loom provided with drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp fault, gravity induced means independent of the lay and operatively connected to the stop mechanism proper, positive connections between the feeler and said gravity induced means, sa d connections having a fixed path ofmove;

ment whether or not warp. fault occurs, and a cam so positioned with respect to said gravity actuated means that it intermittently contacts therewith to impart positive, non-feeling movements to the feeler.

413 A loom provided with a plurality of banks of drop barssupported upon the warp threads thereof, a single feeler having a path of movement to intercept an indicating drop bar in either bank, stop mechanism proper active upon warp fault, a cam positively to impart non-feeling movement only to said feeler, and gravity actuated means to impart feeling movements to said feeler and having connections to permit the actuation of said stop mechanism proper in the event ofwarp fault, said cam being so positioned with respect to the gravity actuated means that it intermittently contacts therewith to impart positive non-feeling movements to the feeler.

44. A loom provided with drop bars supported upon the warp threads thereof, a

cept an indicating drop bar, stop mechanism proper active upon warp fault and gravityactuated means independent of the lay and feeler having a path of movement to intercept an indicating drop bar, stop mechanism proper active upon warp-fault, gravity-in duced means independent of the-lay and connected to the stop mechanism proper, said gravity-induced means including a lever havingportions at opposite sides of its pivot respectively connected to the feeler and to the stop motion proper and having a cam actuated projection, and a cam so positioned with respect to said lever that it intermittently contacts with said projection, thereby to impart positive, non-feeling movements to the feeler.

46. A loom provided with a plurality of banks of drop bars supported upon the warp threads thereof, a feeler having a path of movement to intercept an indicating drop bar in either bank, mechanism actuated to impart positive non-feeling movements to said feeler and receiving gravity-induced movements, said mechanism including a 90 feeler having a path of movement to interlever connected at one side of its pivot. With In testimony whereof, I have signed my said feeler, stop mechanism proper to which name to this specification, in the presence of the lever is connected at the other side of its two subscribing Witnesses.

pivot, and a cam positioned to contact in- CHARLES D. LANNING. termittently only with said lever, thereby to Witnesses:

impart positive, non-feeling movements to EVERETT S. EMERY,

the feeler. IRVING U. TOWNSEND.

Copiesvof this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C.

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