US656592A

US656592A - Loom.

Info

Publication number: US656592A
Application number: US66009597A
Authority: US
Inventors: Horace Wyman
Original assignee: Crompton and Knowles Corp
Current assignee: Crompton and Knowles Corp
Priority date: 1897-11-29
Filing date: 1897-11-29
Publication date: 1900-08-21
Anticipated expiration: 1917-08-21

Description

No. 656,592. Patented Aug. 2|, |900.

H. WYYMAN.

LOOM.

(Application led Nov. 29, 1897.)

.Mme-gym l mz' uo'mus Farms co. wotmlmo.. msnmcron. u. c.

No. 656,592. Patented Aug. 2|, i900.`

` H. WYMAN.

LOOM.

(Application led Nov. 29, 1897.)

(N0 MOdGL) 4 Sheets-Sheet 2.

1m: unam: niks co. Moro-uma., wAsMmuToN. o c.

No. 656,592. .Patented Aug. 2s, |900.`

. H. wYMAN.

LOOM.

{Application led Nov. 29, 1897.)

(No Mardel.)

4 sheetssheet 3.

k Cm

ms Nbmus Ferias co.. mow-umu.. wAsHmsrou. n. c

No. 656,592. Patented Aug. 2|,v |900.

H. .WYMAN.

' lLOOM.

' (Application led Nov. 29, 1897;);

(No Model.) 4 Sheets-Sheet 4.

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UNITED STATES PATENT OFFICEG HORACE WYMAN, OF TVORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON @E KNOWLES LOOM WORKS, OF SAME PLACE.

LOQM- SPECIFICATIGN forming part of Letters Patent No. 656,592, dated August 21, 1900.

Application filed November 29, 1897. Serial No. 660,095. (No model.)

Be it known that I, HORACE WYMAN, of Worcester, county of Viorcester, and State of Massachusetts, have invented an Improvementin Looms, of which the following description, in connection with the accompanying drawings, is a specification, likeletters and iigl ures on the drawings 4representing'likeparts.

This invention has for its object toimprove that class of loom designated under the term dobby and using movable shuttle-boxes. I having combined with the usual shed-forming pattern-surface and a shuttle-box patternsurface, each employing as its indicating-surface a suitable,pattern-chain, a multiplying mechanism, it having also a chain whereby any indicator carried by the shuttle-box pattern-surface may be made to repeatlitself any desired number of times.

This invention, while specially applicable to a dobby-loom, as above indicated, is also applicable to any usual or suitable type of loom using shed forming and shifting shuttle#` box mechanism.

On the occurrence of mispicks and other faults, which, if not corrected, would result in imperfections of the pattern, the loom isA stopped and the pattern-surfaces must be turned by hand to again bring their indicators at the proper points before the loom is again started. To insure this at one operation, I have combined with the said pattern-surfaces and said multiplying mechanism devices whereby whenever it is required to adjust said pattern-surfaces or multiplying mechanism, the loom being at rest7 the said patternsurfaces and multiplying mechanism may be moved in unison, and this movement may be in either direction to thereby insure the maintenance of the said surfaces and multiplying mechanism in the established'order requisite for the correct weaving of the pattern to be produced.

One part of this invention therefore consists in combining with the shuttle-box pattern-surface a multiplying mechanism to insure the repeating ot' any desired indication of the shuttle-box pattern-surface for any desired number of times, the chains of the shuttle-boX pattern-surface and said multiplying mechanism being mounted, as herein 4represented, on different cylinders adapted to be rotated about suitable shafts, the centers of motion of said pattern-surfaces and said multiplying mechanism being out of line. Preferably each of said cylinders and the shaft of the shed-forming pattern-surfaces will have a suitable hand-Wheel, whereby each of said cylinders or said shaft may be moved independently of the other, if necessity requires, by its own hand-wheel. The cylinders carrying the shuttle-box pattern-chain and the chain of the multiplying mechanism are sustained upon shafts held in bearings lso constructed, as will be hereinafter represented and described, that either of said chains may bereadily removed from the-end of'said cyl-` inder and overits hand-wheel without dismemberingtlie Chaim 'Another feature of the invention herein contained consistsin combining with said pattern-surfaces and multiplying mechanism devices under control of the operator whereby said pattern-surfaces and multiplying mechanism may be turned backward orforward in unison at one operation and without disturbance of the predetermined set or arrangement Qt' said parts necessary to produce the particnlar pattern which it is desired to weave `in the cloth to be produced.

In' this invention I have one and the same rotating shaft to operate the shuttle-box pattern-surface, the chain of the multiplying mechanism, and the shed-forming patternsurface, said shaft having, however, a plurality of worms, one of which engages a wormtoothed gearfast on a shaft carrying the shedforming pattern-surface, said gear at each r0- tation eifecting two step-by-step movements of the said shed-forming pattern-surface to indicate the formation of two sheds, the other of said worms having teeth of peculiar shape which engage the teeth of and rotate two worm-toothed gears, one cooperating with each of said cylinders, the teeth of this latter worm being so shaped or inclined that when one portion of said teeth engagethe teeth of one of said toothed gears that toothed gear will dwell or remain at rest, while the other toothed gear will be rotated, and vice versa, so that the shuttle-box pattern-surface or the chain of the multiplying mechanism, which- IOO one and then the next indicator thereon into operative position. The two worm-toothed gears which coperate with said shuttle-box pattern-surface and the support for the chain of the multiplying mechanism have connected to and adapted to rotate with them each one half of a suitable clutch device, the other cooperating half of such clutch device being connected to or moving with the cylinders carrying the shuttle-box pattern-chain and the chain of the multiplying mechanism, each of said clutch parts being under the control of a suitable lever, preferably of the first order, said lever being moved, however, by an indicator of the other chain, so that each chain controls through said levers the clutch employed to move the otherchain,and thereby eachchain may be moved whenever desired from or through the indicators of said chains, there preferably being an independent row of indicators on each chain for the purpose of controlling these clutches, so as to stop and start either of the chains at will. The worm which actuates the two worm-toothed gears is located between said gears and engages each of them, and these teeth of the worm are so shaped, as will be described, that when one worm-toothed gear is at rest the other will be moving, and vice versa; but at this same time the other worm, it engaging a Worm-toothed gear on the shaft carrying the shed-forming pattern-surface, rotates that shaft continuouslystep by step, said shaft having a movementof two steps for one step of either the shuttle-box pattern-surface or the chain of the multiplying mechanism. It will be understood thatlhe shuttle-box pattern-'surface will be moved only in the interval in which the chain of the multiplying mechanism is at rest, and vice versa.

Figure 1 in end elevation shows a sufficient portion of a loom with my improvements added to enable my invention to be understood,said iigure showing but a small part of the shed-forming pattern-surface and part of the chain of the shuttle-box pattern-surface, the chain of the multiplying mechanism being omitted, as it is shown fully in Fig. 3. Fig. 2 is a sectional detail in the line x of Fig. 1. Fig. 3 is a partial rear side elevation and section of the parts shown in Fig. 1, the line of 'section being across the shaft on which is mounted the cylinder carrying the shuttlebox pattern surface or chain in line fr and across the cylinder and shaft carrying the chain of the multiplying mechanism in the line :1:2 of Fig. l, Fig. 3, however, showing said chain in position, together with the shed-forming pattern surface or chain and two of the usual fingers of the dobby. Fig. 4 is a detail showing the shoe at one end of the lever, located between the chain of the multiplying mechanism and the clutch cooperating with the shuttle-box pattern-surface. Fig. 5 is a detail showing the two levers actuated by the shuttle-box pattern surface or chain and by the chain of the multiplyingV mechanism to effect the stopping and starting of the cylinder carrying the pattern surface or chain of the shuttle-box pattern-surface and the chain of the multiplying mechanism, so that any indicator on the pattern surface or chain for the shuttle-box may be repeated any desired number of times. Fig. 6 is a partial top or plan view and longitudinal section in the line :r4 of the parts shown in Fig. 5. Fig. 7 is a detail showing one of the two like disks connected to one or the other chain-carrying cylind'er and forming one of the clutchparts of the two like clutches to be designated. Fig. 8 shows an end view of the fingered end of the sliding collar forming part of the other half of one of said clutches. Fig. 9 shows part of the cylinder for supporting the shuttle-box pattern surface or chain, said figure showing the usual indicator-rolls and by dotted lines one of the special indicators movable -with said chain to indicate the stopping and starting of the cylinder moving the chain of the multiplying mechanism. Fig. 10 is a sectional detail view of the cylinder carrying the chain of the multiplying mechanism, together with part of said chain, the figure showing one of the high links which when in position to operate indicates and compels the clutching and starting of the cylinder carrying the chain ofthe shuttle-box pattern-surface. Fig. 11 isa top view of the chain shown in Fig. 10. Fig. 12 shows laid out one form of worm for actuating the worm-toothed gears having the clutch parts and being instrumental in rotating the cylinders carrying the shuttle-box pattern surface or chain and the chain of the multiplying mechanism; Fig. 13, a detail in plan showing the worm a2, the worintoothcd gears actuated thereby, and the collars sliding on the sleeves of said gears and for-ming parts of the clutches t-o be described, Fig. 14, a detail of the cylinder for carrying the chain of the shuttle-box pattern-surface; Fig. 14., a detail looking at the left-hand end of Fig. 14; Fig. 15, the cylinder carrying the chain of the multiplying mechanism; and Fig. 16, an end view of a sleeve on which is Xed a worm- IOO IIO

toothed gear, said ligure showing the end of f the finger @34. Fig. 17 is a longitudinal section of the parts shown in Fig. `16.

The part A of the framework herein shown is and Vmay be common, say, to the loom represented in United States Patent No. 217,589, dated July 15, 1879. In practice the shaft B may be considered to be substantially the same as the shaft indicated in said United States Patent No. 217,589 for carrying the shed-forming pattern surface or chain composed of parts 9l 27 29, adapted to actuate fingers d6, common to the dobby mechanism, fully described in said patent, where the said chains and fingers are designated by like letters; but instead of said pattern surface or chain a pattern-surface of any usual or suitable construction may be made and used to actuate any other usual jacks or hooks cornnionly employed in connection with shedforming mechanism to form sheds in the warp.

The framework A has a suitable bearing, as at A, through which is extended a shaft A2, (represented by dotted lines, Fig. 3,) said shaft having at its inner end a large gear A4, which may be connected and actuated by any usual or suitable pinion connected with or deriving its motion fram the usual crankshaft of the loom, as provided for in United States Patent No. 217,539. The outer end of the shaft A2 has fast upon it a bevel-toothed pinion A5, which engages a bevel-toothed pinion A6, fast on the lower end of a short shaft A7, (shown by dotted lines in Fig. 3,) said shaft having its bearings in a suitable stand or bracket A6, bolted in suitable manner to the frame A. The upper end of the shaft A7 has fast upon it a `hub of a disk B4, provided at one edge with a suitable notch to receive a tongue a, (see dotted lines, Fig. 1,) extended downwardly from a latch B6, pi voted at B6 on a disk B7, attached to a shaft Bs in line with the shaft A7, said shaft B8 being surrounded by a suitable spring B6, acted upon at its upperend by a collar B16, fast on said shaft B6, so that said spring normally acts upon said latch to keep its tongue in engagement with the notch in the disk B4, said two parts of the shaft being moved together in unison by or through the gears A5 and A6 whenever the loom is Working regularly; but should the loom be stopped for any reason and it be desired to rotate the part B6 of the two-part shaft B8 A7 then power appliedin this instance of my invention to a suitable hand-wheel C, (shown in Fig. 1,) connected to the end of a cross-shaft G, supported in the framework A and having at one end a bevel-pinion C2, may be turned, causing said bevel-pinion to engage a bevel-pinion `C6 on the upper end of the part B6 of said two-part shaft, and by applying sufficient force to said shaft C the friction of the spring B9 may be overcome and the shaft B6 turned, leaving the part A7 of the shaft at rest. This turning of the part B8 of the shaft is necessary at times, as will be hereinafter stated, to enable the different pattern-surfaces and parts deriving movement from said shaft to be rotated in unison in one or the other direction to correct mistakes, such as mispicks or other faults occurring in weaving.

\ The part B6 of the shaft is provided in this instance of my invention with two wormsviz., a worm and a worm @2. The worm a engages a worm-toothed gear a6 on the shaft B, before referred to, carrying the shed-forming patternchain, and rotates said shaft continuously. The worm-gearo.2 engages a wormtoothed gear d4, (see Fig. 13,) where said gear is shown in plan, said gear being secured to a sleeve @16, (see Fig. 17,) mounted loosely on a stud @5. (See Figs. 1, 3, and 13.) The worm @2 rotates said Worm-toothed gear d1 and its sleeve @16 intermittingly aboutsaid stud. The sleeve has iixed to its end opposite the wormtoothed gear a plate @66, (see Fig. 16,) having a notch @61. The sleeve @16 has mounted upon it a collar @62, having an Vannular groove @66 and a nger @64, said collar being free to be slid on said sleeve and cause said linger to move back and forth in the notch of said plate. The worm @2 also engages a second like worm-toothed gear @65, (shown in Fig. 13,) it being hid from view in Figs. 1 and 3 by the parts immediately in front of it. The gear @55 is fast on a sleeve @6, said sleeve being just the same as sleeve @16, before described, and the said sleeve @6 has at its front end a connected disk @66, having a notch d66, and the said sleeve a6 has mounted upon it loosely, between said worm-toothed gear @1"5 and said disk, a collar @66, having a finger d66, which enters the notch d66 in said disk, said collar having an annular groove @16. Both the said collars @62 and @i18 are free to be slid at suitable times, as will be described, on the said sleeves @16 @6, and said collars and sleeves form part of a clutch to be described. The sleeve @6 is mounted loosely on a stud @6X, corresponding with the stud @5, it being held at itsV right-hand end, Figs. l and 13, in a suitable bearing in a part @41, erected upon the framework. The stud @6 is extended through a second bearing in an extension d6 of the loom-frame. The stud @6X receives upon it a sleeve @16, having connected with it a chaincarrying cylinder @16, on which is' hung the shuttle-box pattern surface or chain b, it having any usual or suitable indicators, as 2, and a series of special indicators b', one of said indicators being shown by full lines in Fig. 1 and by dotted lines in Fig. 9. The sleeve @16 also has connected with its inner end a plate h6, having at its periphery suitable notches b1, which are adapted to be engaged by a projection extended from a locking-lever 7, said lockinglever operating to enter any one of'said projections and prevent the overrunning of the motion of the sleeve @16 and pattern surface or chain b and keep it at rest when not actuated positively. The disk h6 also has a series of spaces h5, which may be entered one or the other by the finger d66 at the end of the collar d66. The sleeve @16 has connected `to it at one end by a spline or key @66 (see Fig. 14a) a hand-wheel (126, and said sleeve, it surrounding the stud @6X, is eX- tended through a hole in and takes its bearing in the projecting arm @8, before referred to. Viewing Fig. 3 it will be seen that the shuttle-box pattern surface or chain b hangs on the cylinder @16 about the projecting end of the arm @6, supporting the said sleeve and its cylinder, and when the pattern-chain is to be removed it may readily be drawn off bodily (see Fig. 3) from the cylinder without unfastening the chain.

The stud @5 receives upon it a sleeve d, hav-V ing detachably secured to one end thereof a IIO for the collar @38.

hand-wheel d2, said sleeve .having at its opposite end a plate or disk d3, which in all particulars is the same as the disk b3 before described and carried at one end of the sleeve 0.16, said disk or plate d3 having a like series of spaces in which may be entered the linger o3* of the collar crS2 at desired times. The sleeve d also has as part of it a cylinder d', (see Fig. 15,) upon which is hung the multiplying pattern-chain cw, having at suitable intervals high links or indicators 015.

The disks or plates b3 and cl3 constitute eac one half of a clutch, the other halves being the collars u32 and e038, said collars having the lingers 0,34 and 0.39, and either one of the said sleeves d or al@ may be rotated at any desired time by simply putting the clutches into operation, and they may be left at rest for any desired time by putting the clutches out of operation.

The indicators h' on the shuttle-box pattern surface or chain b control the movement of the clutch part to start or stop the sleeve d, carrying the multiplying pattern surface or chain c, and the indicators 015, carried by thel chain o16 of the multiplying mechanism, control the collar @L38 of the clutch part instrumental to start and stop the sleeve al, carrying the shuttle-box pattern surface or chain.

In the operation of the loom the indicators 2 act in the proper order to lift one or the other of a series of levers 8, having attached rods 4, connected with and to operate any usual or suitable shuttle-boX-moving mechanism-such, for instance, as represented in United States Patent No. 227,667, dated May 18, 1880.

For putting into and out of operation the clutch parts referred to I have provided devices which I will now describe.

In a bracket c3 of the framework I have mounted a stud c2, confining it in position with a suitable set-screw cx. One end of the stud receives upon it loosely a lever c of the rst order, said lever being bent, as shown, to present a depending extremity c', which enters the annular groove com in the collar ass. The lever c has an upwardly-extended ear c4, (see Figs. 5 and 6,) and at theside of said ear the said stud c2 receives on it loosely an adjustable continuation c8 of said lever, said continuation having an upwardly-extended short arm c7, provided with a slot c6, through which is extended a screw c5, which is screwed into a threaded hole in said ear c4, so that by the loosening of said screw c5 the particular angles occupied by the end c of the lever c and the end of the continuation o8 may be Varied to insu re just the proper movement The continuation a8 of the lever c has a stud 010, on which is pivoted a shoe cl2, said shoe resting immediately above the chain c1? of the multiplying mechanism in position to be struck by an indicator C15 when it is desired to effect the clutching of the finger n35 of the collar das with the plate or disk b3 to start the sleeve o16 and chain h in motion,

- under said shoe.

the absence of a high link or indicator 015 from under said shoe c12 enabling a spring c, connected with the lever cs, to move said collar and effect the disengagement of the clutch referred to from the plate or disk b3 and leave the shuttle-box pattern surface or chain b at rest, so that the indicator then operative will insure that the shuttle, the position of which is controlled by said indicator, may be thrown any desirednumber of times. The shoe c12 is provided above its pivotal point 010 with a suitable spring 10, said spring yielding whenever the stress upon the said `shoe from any accidental cause would be more than it and the parts carryingV the shoe would bear without breaking. The stud c2 alsohas mounted loosely upon it, but at its opposite end, a second peculiarly-shaped lever f of the first order, it having a depending end f', which enters the groove @L33 of the collar w32, and the end of the stud c2, alongside of the ear f2 of the leverf, has mounted loosely upon it an adjustable continuation f3 of the lever f, said continuation having a slot like the slot c6 in the part c7 of the continuation o8, the slot of said continuation f3 receiving a suitable setscrew f4, which is inserted through said slot and screwed into the ear f2 of the lever f, said ear extending above the stud c2. The continuation f3 of the leverj' has a pivot or stud f5, upon which is mounted a shoe f6, a suitable sprin g f7 actin g on said shoe, as described of the spring 10 in connection with the shoe cl2. The shoe f6 stands above and in position tobe acted upon by the indicator h of the shuttle-box pattern surface or chain h, and when a special indicator b acts on the shoe f6 the lever f is turned to cause the finger 0,34 of the clutch L32 to enter one of the like spaces b5 of the plate or disk di, fast on the sleeve Cl, carrying the chain of the multiplying mechanism, and said chain is moved so long as said clutch is in engagement therewith, it being stopped whenever an indicator b' passes from The levers c and fare each acted upon to keep their shoes in contact with theindicators for moving them by like springs 014; The levers or fingers 3 turn on a stud 5, held by a screw 6 in a bearing l2. The plates or disks h3 and d3 are held locked in place, so that they will not be moved accidentally, by projections on usual levers 7 8, held normally in operative position by one common spring 14 connecting them.

When it is desired to change the chain b of the shuttle-box or the chain al of the multiplying mechanism for other chains having indicators arranged in a different order, then said chains may be easily slipped off from the sleeves carrying them over their attached hand wheels without dismembering said chains.

The springs f7 and 10 referred to serve to permit the breaking of the levers c orf whenever, by any disarrangin g of the parts,the said levers might not be free to move, orv should either clutch stick. y

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. the worm-toothed gears a4 and c55 and their sleeves and clutch parts; but said clutch parts do not engage and rotate the sleeves (Zand ctw except at times, controlled by the position of theizndicators on, respectively, the chains c1G an Th'e teeth of the worm a? are of peculiar shape. (See Fig. `l2, where it willbe seen that the portions marked 30 extend circumferentially about the hub of said worm and the portions 3l are placed at a steep inclination.) The portions 30 .are designated as dwell portions and the portions 3l as moving portions. When the dwell portions 30, covering substantially one-half` the worm, act on a Worm-toothed gear, that gear does not rotate, but the moving portions 31 at the other half of the worm,itengaging the other worm-toothed gear rotates it, so it will be understood that the worm a2 in its rotation moves iirst one and then the other of thetwo gears engaged by it. I have chosen this form of worm for the reason that the loom hereinsofar described is supposed to contain movable shu ttle-boXes at but one end of the lay,and the said shuttle-boxes may be moved only at every other pick; but should this invention be applied to a loom having shuttle-boxes at each end of the lay, said shuttle-boxes being adapted to be moved at each pick, then in each instance the worm a2 would have its teeth so constructed that at each rotation of` the said Worm its teeth, in connection with the teeth of the worm-toothed gears referred to, would turn both of said gears for one step at each half-rotation of the worm.

VI will also herein note that the shaft B is rotated, in this present instance of my in` vention, twice by or through the worm d', while the worm d2, as shown, operates once `either of the two worm-toothed gears a* and (L55, such order of timing being necessary in the class of looms herein described and having, as stated, a shuttle-box atbut one end of the lay.

The facility hereinbefore described for readily and easily removing the chains h and C16 without dismembering them is of very considerable importance to a loom-fixer, as it not only saves his time, but also prevents any loss of the parts of the chain, provided they are not immediately pnt togetheragain.

This invention is not limited to the exact shape of the clutch parts herein represented, and instead of the particular clutch parts I may employ any other usual or suitable clutch devices adapted for the purpose.

The worm-surfaces d and a2 on the gear- Vshaft are shown as made in separate sleeves lproperlyapplied thereto; `but this invention would not be departed from if the said wormsurfaces were all on one sleeve, one located `above the other.

Having fully described my invention, what I'claimas new, and desire to secure by Letters Patent, is-

l. In an organized loom, the following instru mentalities,viz: a shuttle-box pattern-surface.; a multiplying mechanism cooperating therein; a pattern-surface to determine the order of forming sheds; a rotating shaft prop vided with endless screw or worm surfaces; and worm-toothed gears arranged on opposite sides of said worm-surfaces and driven thereby to actuate the pattern-surface of the shed-forming mechanism, the shuttle-box pattern-surface, and said multiplying meehanism, means for rotating said shaft and a yielding clutch between said means and shaft, substantially as described.

2. In aloom, ashuttle-box pattern-surface; a multiplying mechanism coperating therewith', a pattern-surface to determine the order of forming sheds; a rotating shaft provided with endless screw or worm surfaces; worm-toothed gears arranged on opposite sides of and driven by one of said screw or worm surfaces, and clutches intermediate the said shuttle-box pattern-surface and multiplying mechanism and two of said worm-toothed gears, to move said shuttle-box pattern-surface and said multiplying mechanism alternately, and to also move the pattern-surface of the shed-forming mechanism, substantially as described.

3. In a loom, the followingl instrumentalities, viz: a shuttle-box pattern-surface; a multiplying `mechanism `coperating therewith; two worm-toothed gears, means to enable the said worm-toothed gears to engage and turn said shuttle-box pattern-surface or the said multiplying mechanism at desired intervals; a shaft provided with an endless screw or worm arranged between said gears constructed with a dwell and an actuating portion, to produce a dwell` alternately in the movement of each of said worm-toothed' gears actuated thereby for the purposesset forth.

4. In a loom, a shuttle-box pattern-surface,

ICO

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a multiplying mechanism eoperating therewith, a pattern-surface to determine the order of forming sheds, a rotating shaft provided with a plurality of worms, one of said worms engaging a worin-toothed gear to aetuate the pattern-surface of the shed-forming mechanism; two clutches, one coperating with the shuttle-box pattern-surface and the other with the multiplying mechanism, each having as a part thereof a worm-toothed gear, the second worm on said shaft having a dwell portion and arranged between and engaging and rotating both the worm-toothed gears coperating with the` said clutches to move the said gears alternately, substantially as described.

5. In a loom, a shuttle-box pattern-surface, a multiplying mechanism coperating therewith, a pattern-surface to determine the order of forming sheds, a rotating shaft provided with a plurality of worms, one of said ISO worms engaging a worm-toothed gear to actuate the pattern-surface of the shed-formin g mechanism; and two clutches, each having as a part thereof a worm-toothed gear, the second worm on said shaft arranged between and engaging and rotating both said wormtoothed gears and the said clutches, and means to automatically move said rotating clutches to effect the start-ing or stopping of either the said shuttle-box pattern-surface or said multiplying mechanism at predetermined times, substantially as described.

G. In a loom, a shuttle-box pattern-chain, means to support it, a cooperating wormtoothed gear; the chain of a multiplying mechanismLmeans to support it, and a coperating worm-toothed gear; and a patternchain to determine the order of formingsheds, a support for it, and a cooperating wormtoothed gear, the centers about which said chains turn being out of line; combined with a 'rotating shaft provided with a plurality of worm-surfaces, one of said worm-surfaces engaging the worm-toothed gear cooperating with the shed-forming pattern-chain; and the other of said Worm-surfaces engaging and rotating both the two worm-toothed gears 'cooperating respectively with the shuttle-box pattern-chain and the chain of the multiplying mechanism, substantially as described.

7. In a loom, a shuttle-box pattern-chain,

a sleeve supporting it provided with a handwheel, and a coperating Worm-toothed gear; the chain of a multiplying mechanism, and a sleeve to support it having a hand-wheel cooperating With it; combined with a rotating shaft provided with a worm-surface between and to engage and rotate both of said wormtoothed gears alternately, and clutches carried by said worm-toothed gears and engaging at intervals the-supports of said chains, substantially as described.

8. A shuttle-box pattern-chain, means to support it, a cooperating worm-toothed wheel; the chain of a multiplying mechanism, means to supportit,and a co peratin g worm-toothed wheel; a rotatable shaft, having a worm provided for portions of its periphery with dwell teeth and with inclined teeth, the inclined teeth being a continuation of the dwell teeth, said worm occupying a position intermediate said worm-toothed gears and engaging the teeth of the latter; clutches intermediate said worm-toothed gears and said chain-supporting means; and two levers, each of which is acted upon by the indicators of one of said pattern-chains to control the period of operation and of rest of the clutch coperating with the other of said pattern-chains, substantially as described.

9. In a loom, the following instrumentalities, viz: a shuttle-box pattern-surface having a row of indicators to determine the movement of a multiplying mechanism; a multiplying mechanism having indicators to determine the movement of the shuttle-box pattern-surface a worm having a dwell portion,

worm-toothed gears actuated thereby and moved alternately, and controlling the movement of the pattern-surface and multiplying mechanism, clutches driven by said wormtoothed gears; mechanismintermediate said two clutches and said shu tile-box patternfsurface and multiplying mechanism 'whereby the shuttle-box pattern-surface is enabled to con` trol the clutch for stopping and starting the multiplying mechanism, and the multiplying mechanism is enabled to control the clutch for starting and stopping of the shuttle-box pattern-surface, substantially as described.

l0. The sliding collar forming part of a clutch mechanism; means for rotating said collar, a pattern-surface, and a lever intermediate said pattern-surface. and collar, and engaging the latter, combined with a shoe pivoted on said lever and adapted to rest on Said pattern-surface, and a spring interposed between said lever and said shoe, substantially as described. n

ll. In a loom, a two-part power-operated shaft, a clutch intermediate said parts, two worm-surfaces and a bevel-gear C3, carried by the upper part of said power-operated shaft; a shaft carrying the shed-forming pattern-chain and a worm-gear thereon operated by one of said worm-surfaces; a sleeve having a cylinder carrying a' shuttle-box pattern surface or chain ,means to support said sleeve; a second sleeve having a cylinder carrying the chain of a multiplying mechanism, means to IOO ' support said sleeve out of line with relation IIO C2 engaging the gear C3 and adapted to be rotated by hand in either direction when the lower part of said power-operated shaft is held at rest and the loom stopped, whereby the upper part of said power-operated shaft and the parts actuated by its attached wormsurfaces may be turned in unison in either direction at will, substantially as described.

12. In a loom, the following instrumentalities, viz: a shuttle box pattern-surface, a wormtoothed gear, means connecting said gear and said pattern-surface; a shed-forming pattern-surface to determine the order of forming sheds, a worm-toothed gear in operative connection therewith; a rotatable shaft provided with two worm-surfaces, one of said worm-surfaces engaging the worm-toothed gear coperatin g with the shuttle-box patternsurface being provided with dwell and inclined teeth, substantially as described, to enable said shuttle-box pattern-surface to be moved from one to the next series of indicators and remain at rest, the operation of the other worm-surface and worm-toothed gear cooperating with the shed-forming patternsurface to move the latter for a distance equal to two series of its indicators before the shut# t1e-boX pattern-surface is again moved,` substantially as described.

13. In a loom, the following instrumentali-` ties, viz: a shuttle-box pattern-surface, a cooperating worm-toothed gear; a multiplying mechanism including a Worm-toothed gear; a pattern-surface to determine the order of forming sheds, a worm-toothed gear in operative connection therewith; a rotatable shaft disposed between the two first-mentioned toothed gears and provided withv two worm-surfaces, the worm-surfaces coperating with the two toothed gears of the shuttlebox pattern-surface, and the multiplying mechanism being constructed to present dwell and inclined teeth to enable the said wormfsurfaces to move alternately the said two worm-toothed gears for one step to actuate the shuttle-box pattern-surface or the multiplying mechanism alternately from one to the next indicator of its chain, while the worm-toothed gear of the pattern-surface destructed with a dwell and active portion to` provide for a dwell alternately and successively in the rotation of each of said Wormtoothed gears; clutch-surfacesrotating with said worm-toothed gears and each controlled by one of said pattern-surfaces, whereby one of said surfaces controls the movement of the clutch to start and stop the other pattern-surl face, substantially as described.

In testimonywhereof I have signed my name to this specication in the presence of two subscribing witnesses.

HORACE WYMAN.

Witnesses:

GEO. W. GREGORY, J. B. SYME.