US1322715A - merrill - Google Patents

Description

I). 'II MERRILL.

TERRY LOOM.

APPLICATION FILED AUGJIS. IQHL.

5 snms snszr I.

. Patented NOV. 25

( F. MERRILL-1 TERRY LOOM. APPLICATION FILED AuG.15. 191a.

' Patented Nm'. 25, 1912).

5 SHEETS *SHEET 2.

I7LU6 7 "bf/07 Charles 27127677" ZLZZa 'C. F. MERRILL.

TERRY LOOM.

APPLICATION FILED AUG. 15. 1918.

Patented Nov. 25, 1919.

5 SHEETS-SHEEI 3.

I7 v0 67 116/0 7 7 5 6%Z65 Ffferrzi c. F. MERRILL.

, TERRY LOOM. APPLICATION FILED AUG-l5, 1918.

Paitented Nov. 25, 1919.

5 SHEETS-SHEET 4.

C. F. MERRILL.

TERRY LOOM.

APPLICATION FILED AUG. 15, 19M].

Patented Nov. 25, 1919.

5 SHEETS--SHEEI 5" 67m? "563 Fiver-r656 mechanism.

by the line 9 fiTATEti in one i inner ornrii.

QHSEE-IES F MERRILL, OF NORTH ADMIS, MASSACHUSETTS, BSQSIGNOR TO DRAPER. CQEJJEGELATION, 6F HOEEDALE, MASSACHUSETTS, J5 COIEPORATIGN OF MAINE.

TEBRY-LGQM.

Application filed August 15, 1918.

To all whom it may concern:

Be it known that 1, CHARLES F. Element, of North Adams, in the county of Berkshire, in the State of Massachusetts, have pattern mechanism employed in terry looms for determining the weaving of the terry and plain portions of a fabric to the desired eXtent, and. sequence; to the letting hack of the fabric under the control of the pattern mechanism in changing between plain and terry weaving so as to avoid slaclrnoss in the fabric at these places, and also during the plain weave to secure closeness and compactness; and to the connec tions between the patternmechanisin and the heat-up motion.

The improvements are illustrated in the accompanying; drawings in which Figure 1, is a side view of the pattern Fig. 2 is a vertical section in the plane indicatedby the line 2 -2 in Fig. l. 3, is a vertical section in the plane indicated by the line 33 in Fig. 1. Fig. i, is a vertical section in the plane indicated by the line i-i in Fig. 1. Fig. is a vertical section in the plane indicated. by the line 55 11F ig. 1. Fig. 6, is a vertical section in the plane indicated by the line 6-6 in Fig. 1. Figs. 7 to ll, views of the beatup motion and the tal e-up and the connections between the transmitting levers of the pattern mecl'ianisni and the beat-up motion andthe take-up. Fig.7 is a plan view of the pat tern mechanism. Fig". 8, is a vertical section of the i) ltl1P H10ti )11 shaft with its actuating mechanism in elevation. Fig. 9, is a vertical section in the plane indicated 9 in Fig. 10. Fig. 10, is a plan View of the pattern mechanism, beatnp motion, and let-back motion. Fig. 11, is a vertical section of the loom, illustrating the beat-up and let-back motions. Fig. 12, is a detail section of a part of the-transmitting devices between the pattern mechanism and the let-back. Fig. 13, is a vertical section in theplane indicated by the Specification of Letters Eatent. Fafi enfiygfi Ngv, 25, 11 fl' qi,

serial No. seems.

line 13-13 in Fig. 10. Fig. 14%, is detail view of the pattern lever stop.

In terry looms for Weaving double pile fabrics such as Turkish towels itis impel tant that sections of plain fabric should be woven as well as sections of the pile fabme since it is customary to make the ends of each towel with alternating stripes or plain and terry fabric. In accordance with the present invention pattern mechanism, is employed which automatically governs the change between plain and terry weaving and the extent and distribution of each ya--' riety.

As has long been customary, the terry weaving for toweling has been effected through varying the forward extent of the beat-up movement of the reed. For severalv picks of the shuttle the reed moves forward toward the tell of the cloth-partially only so that a gap is left between the picks of weft and the fell of the cloth. Then, the

reed is given its full forward movement thus beating up the several picks at once. Theterry warp at the full beateup of the reed is under slight tension whereas the ground warp remains under its full tension. Hence the portions of the terry warp threads which are between the group of picks and the fell of the cloth are looped on both sides of the fabric as the full beatiip of the reed takes placenThis has long been customary in forming the terry loops. When plain Weaving is done the reed has its full beat-up movement following each pick and, hence, no loops are formed in the terry warp. Therefore, to change between terry and plain Weaving simply requires that'the 1 beat-up motion should be regulated so that during plain weaving the reed has full forward beats following every pick whereas during terry weaving there is a sequence of partial forward beats of the reed followed by a full forward beat. In accordance with the present invention there are connections the "fabric occurs at the junction between the two varieties of weave. In accordance with the present invention the take-up is co- Also, during the plain weave the fabric is woven loosely as compared with the terry weave and, accordingly, to render the plain weave compact the pattern mechanism is so organized as to let back the fabric at recurring intervals during the plain weave.

in describing the improved mechanism in detail, the pattern mechanism, the beat-up motion, and the let-back motion, will be set forth in the order named.

Pattern m-cchrmism.-Referring to Fig. 1, the crank-shaft 20, of the loom has a bevel gear 21, engaging a bevel gear 22, at the lower end of a vertical shaft 23. 'At its upper end this vertical shaft has a bevel pinion 2 iueshing with a bevel gear wheel loose on a 1 horizontal shaft 26, but normally clutched thereto. Fast on the shaft 26, is a cylindrical hub 27, (Figs. 1, and 6) having a crank stud 28. This hub and crank stud. cotiperate with a star wheel. 29, so as to r0- tate the star wheel step by step and to lock it against rotation except when. engaged by the crank stud.

The .ar wheel 29. is loose on a shaft 30. Fast with the star wheel. is a sprocket wheel 31, carrying multiplying pattern chain 32, with projections 83, which in this instance are shown equally spaced. When through the rotation of the sprocket wheel 31, a pattern cam 33, reaches its uppermost position, it encounters shoe 34, of a centrally pivoted lever 35. thereby elevating" the shoe and tilting the lever. This lever at its end opposite the shoe has a fork 36, engaging; the ,ieripheral groove oi a sleeve 37, which is solined to the shaft 3 Normally, the sleeve 3, is maintained in the idle position shown in 1, by aspring 38, interposed between a collar 39, fixed to the shaft 30, and a star wheel 40, carried by the sleeve 37. hen.

however, the lever 35, is tilted by a cam on the multiplying chain the star wheel 40, is moved to the right (Fig. 1) compressing the spring 38. This brings the star wheel 40, into cooperation with a cylindrical hub 41, fast on the shaft 26. anl a crank stud 42, carried by said cylindrical hub. Accordimrly, the shaft 26. which during the normal running of the loom is continuously rotated) imparts a step by step rotation to the shai't 30, such a step being given each tinie'a cam on the multiplying" chain tilts the lever 35.

Theshaft 30, has fast on it a sprocket 5.01.43, which carries the main pattern 4. Accordingly, the main pattern cnain is fed step by step at intervals dependtern chain is fed one step for a large num.

ber of picks, in the specified instance illustrated, one step for every twenty-four picks.

The main pattern chain has two sets of earns 45, and 46. These cams are in the form of rollers each loosely'turning on a round of the pattern chain. The forward set of cams 4-5, coiiperate with a transmitting let-back lever 47. As shown in Fig. 2. the lever 47, has a depending foot'48, which is adapted to be encountered by the cams 45, so that the lever is lifted in turn by each cam 45. This front lever 47, controls the let-back motion. lVhen the let-back lever 47, is lifted by one of the cams 45, the cloth is let back.

The rear set of cams 46, on the main pattern chain coope ates with a second lever 49, also pivoted at its outer end and having a depending foot 50, in the path of the cams. This rear transmitting lever 49, is operatively connected with the beat-up motion. Whenever this lever is lifted by one of the cams 46, the reed is given full forward beats, and plain weaving; is done.

The cams 45, and 46, are so distributed on the pattern chain as to produce the lengths and sequence of the terry andplain weaves and to let back the cloth at the desired places.

Before explaining the beat-up and let back motions and the connections between the same and the transmitting levers, certain special features of the pattern mechanism will be mentioned.

Although the mainpattern chain is fed one step in the direction indicated by the arrows in Fig. 2, for a number of picks, nevertheless the chain is long especially for large towels. Accordingly looping means areprovidcd for holding up the bottom of the chain in loops. The descending run of the chain passes down upon an outwardly inclined fixed support 51. Certain of the chain rounds have outwardly projecting pins 52, at both ends as shown in Fig. 1. These pins 52, coiiperatc with two fixed loopers support for one set of the pins 52, and it inclines downwardly from its outer end iu wardly. The links of the pattern chain are directed by the guide plate 51, to the outer ends of the supporting loopers as Each looper is a guide and asagna The chain links which with the pins 52, pass he loo-pars 53, until a round ives which are caught and pers; then another sequence passes downwardly between covers, till another roundliaving pins 1 sto ped by the loopers. Hence, the action the loopers in connection with the L ling pattern chain with occasional outwardly ii-ejecting pins is to gather the botom of the chain into a series of loops as vn in Fig. The upward run of the ern chain lifts step by step away from be nner ends of the loopers 53, andjas his upward run is completely withdrawn ..troni the loopers the weight of the loops of tbe chain supported by the loopers suffiees to cause the chain loops to-ride inwardly down the inclined loopers.- The result is that the chain loops itself on the loopers in the manner indicated in Fig. 2.

It is desirable that the patternchains should be susceptible of hand control particularly in startin up the loom with pat tern chains for di'erent sizes and patterns of towels and also to bring them into time when needful. -For this purpose a forked hand levero, (Fig. 1) is employed. The lower forked end of this hand lever enga 'cs circumferential grooved clutch collar 05, splined to the shaft 26. Normally this clutch collar is maintained in clutching engagement with gear 25, by a spring 56. When is desired to adjust the pattern mechanism the hand lever 54, is rocked so as to move the clutch collar 55, away from the gear :35, which as heretofore stated, is loose on. the shaft 26. A hand wheel 57, is fast on tbs outer end of the shaft 26. Accordingly,

wnen the clutch 55, is removed from the gear by the hand lever 54, the shaft can be turned by hand with the same upon the pattern chains as when the Wait turned by power.

Also, in order that the main pattern chain may be adjusted with respect to the multicliain, the lever 35, (Fig. 1) V is pro- 7 with an upward exteniiling handle 58, b means or which the sprocket wheel 40, n be brought into coperative engagement with the crank stud 42, when there is no cam. position to tilt the le er When the sprocket wheel 40, is thus brought into cooperation with the crank stud 42, by the hand e 58, the turningof the shaft 26, by tile handle 57, feeds the main p ttern movable gear cover 59, (Fig. 3) is pro- "l for covering the gears 24, and 25, and tar wheels and the actuating devices intermediate between them and the Klie cover 59, has hinges 60,, {Fig of the multiplying chain in 1, and 5) connecting it with the fixed inclos es ing casing 61, so that it may be turned up out of the way when access" to the covered parts is desired.

A fixed shouldered stop 6:2, Fig. 2) limits the downward swing of the levers a7, and 49. J0

At its bottom the multiplying chain passes around an idle sprocket wheel 63, turning on a stud 64:, carried by a bracket 65.

Beat-Lap motima-There are several known ways in the art of giving the partial '75 and full forward strokes to the reed. This may be done by moving the crank shaft forward and back; by varyingthe effective length of the connection between the crank shaft and the lay; or by a movement of the so reed itself on the lay, Whatever arrangement is adopted in this respect the effect is to vary the beat-up movement of the reed. In the particular loom illustrated in the drawings, the variation of the beat-up moveas ment is accomplished by moving the reed on the lay through the rocking of a beat-up motion shaft A, -Tlie connections between this beat-up motion shaft A, and the reed are substantially as shown in United States so Letters Patent of Bardsley No. 937,139,

October 19, i909, in which the beat-up motion shaft corresponding to shaft A, of the present case is designated by the numeral 11.

During the terry weave the shaft A, is rocked by a cam B, on the back shaft C. This shaft, as common in terry looms, is geared to the cam shaft of the loom so as to run continuously and so that the speed ratio corresponds with the number of picks for each full forward beat of the reed. This ratio may be anydesired. A common ratio is Sllfill'illlfiblillt'i reed is held from full forward movement. for two picks and then beats up to its full extent following the third pick.

A cam lever D, at its front end is loosely hung on the rock shaft and at its rear end 7 has a roll a, traveling in the groove of cam C. The lever B, is adapted to be coupled 11c and uncoupled from the shaft A. During the terry weave it remains coupled to the shaft A, and hence the shaft is rocked back and forth at every revolution of the cam C. The cam-is so shaped that the shaft A, is rocked for every full beaturp stroke of the reed, in the illustrated instance, at every third forward beat of the lay.

lln order to do plainweaving the cam lever D,'is uncoupled from the shaft A. 129 When thus uncoupled the cam lever at its forward end simply turns idly on the shaft A; and the shaft is maintained in such position that the reed at every forward beat makes its full stroke. The coupling and uncoupling of the cam lever to the beat-up motion shaft A, are automatically effected by the rise and fall of the transmitting lever 9, controlled by the set of cams 46, on

the main pattern chain 44.

Fast on the beat-up motion shaft A, is a crank arm E, having a slot 7). A latch F, is pivoted to the cam lever'D. Its latching tooth 0, always occupies a slot d, in the cam lever D. The latch is swung in one direction by a spring G. When this spring is free to act it projects the latch tooth into .the slot 7), in the. arm E, thereby locking the cam lever to the shaft A, so that said shaft is then under the control of cam C. In

order to stop the cam actuation of the shaft lover I, pivoted at its middle upon the shaft A. The other end of the lever 67, is connected by a wire 68, with the inner free end of the lever 49. This wire between the levers 49, and- I. extends through a fixed coiled wire sheath 69, and fixed guides 70.

, point and holds the lever uplifted until the \Vhen the transmitting lever 49, is lifted by one of the cams 46, on the main pattern chain the latch is withdrawn from the arm E, the reed always has its fullv forward beat, and plain weaving is done. When, however, the lever 49, is no longer supported by a cam 46, of the main pattern chain it drops and the spring G, causes the latch to reengage the arm E, and the terry weave is resumed. Each cam 46, dwells at its highest next feed step of the main chain 44.

By having a succession of cams 46, on the pattern chain so that the transmitting lever 49. is maintained uplifted at successive steps of the main pattern chain, the plain weave action continues uninterruptcdly. Vhcn the rounds of the pattern chain have no cams 46, the transmitting lever 4-9. is down and terry weaving is done.

The connections between the beat-up motion shaft A, and the reed J. arc shown in Fig. 11. In principle they are similar to those of the Bardslcy patent mentioned above. At each side of the loom, the shaft- A. has a crank arm 7'. connected by a slotted link to a toggle link 71, pivoted at its middle to a bracket 1'. carried by the lay L. The toggle link 71, is also pivoted to a second toggle link j, pivotally connected to a swinging arm Z', to which is fastened the bottom rail 7, of the swinging reed. These parts 7, {7. 71, 1', j, and Z. are at each side of" the loom. A spring JII. connected to the rear end of each toggle link 12, acts to straighten. the toggle, as shown in Fig. 11. so that the reed is then looked and is prevented from swinging. When the high part of cam B, acts on lever D, the shaft A, is rocked in the direction of the neighboring arrow (Fig. 11), when latched to said lever, as shown in Fig. 11,. thereby breaking the toggle it, j,'

"8, 9, and 11), holds the shaft A, in the posi tion shown in Fig. 8, with an adjustable stop 11, carried by the shaft resting on a fixed girt 0, and the toggle h, j, is straight-, cned by the spring m.

The spring H, is connected at one end to the cam lever D, and at the other end to a depending foot 6 of the arm E, which is fast on the shaft A.

The arm E, likewise has a headed stud 32, fast on its inner end which extends through a slot q, in the cam lever D and prevents any lateral displacement of said lever. The

slot 9', is long enough to permit the play of the cam lever without affecting the beat-up motion shaft during the plain weaving.

Let-back motion.-Tl1e take up mechanism illustrated is similar to that shown in reissued United States Letters Patent, to Nevin Reissue No. 12.9%, April 20, 1909. Only enough of this mechanism is shown to enable the connections between the same and the pattern mechanism to be understood;

As in said Nevin patent the prime gear N, of the take-up gear train for rotating the take-up roll 0, meshes with a pinion P, which is loose on a drive shaft Q. This drive shaft has a worm wheel R, fast there on which is driven from. a worm shaft S,

constantly rotated from the cam shaft. A

clutch sleeve T, splined to the shaft is normally kept in clutching engagement with the pinion by means of a spring U, so that during the normal operation of the'loorn the take-up roll is continuously rotated. The gearing between gear N, and the takeup roll 0, is not shown, being identical with that of said Nevin patent. In order to let back the cloth and warps, the clutch sleeve T. is removed from engagement with the pinion I and. accordingly, the stretch on the cloth and warps rotates the gear N. and pinion l. bm-kwardly to the desired extent. In all of these respects the mechanism is like that. of the aforesaid Nevin patent.

In accordance with the present invention the unclutching movement of the clutch T, is effected by the cam rolls 45, on the main pattern chain lifting the .transmittting let- I wire 71. connected with,

to a forked clutch lever Z6, which cooperates with the clutch T. Whcn the transmitting let-back lever 47, is lifted by one of the cams l5, ofthe main pattern chain the said forked clutch lever 76, is moved in the proper direction to unclutch the take-up thereby per niitting the cloth and warps to let back. llhen a lifting cam 45, passes from beneath the lever 47, it drops and the spring restores the clutching engagement with the take-up train of gears and the take-up action upon the cloth and warps continues.

The cams 45, on the main pattern chain are so located that the take-up train of gears is released to let back the cloth and Warp on changing from the terry Weave to the plain weave, and again on changing from the plain Weave to the terry Weave.

Also, the clutch T, is shifted the cloth and Warp from time to time during the plain: Weaving. In the particular embodiment illustrated the cams -15, are arranged on the main pattern chain during the plain weavin one after the other on the succeeding roun s of the pattern chain so that the let-back action occurs during plain weaving at each step given to the main pattern chain, that is to say "whenever a. cam on the multiplying chain swings the lever 35. in the illustrated construction this occurs at every twenty-fourth pick.

lhe main pattern chain dwells in the position shown in Fig. 2; and if then a cam i5, is presented it is at the uppermost part of the sprocket Wheel 43. The foot 48, of the lever 47, is just at the right of this uppermost earn as indicated in Fig. 2. Conse quently, the lever 47, is down and the takeup is in action. At the next step of the main pattern chain the cam 45, (as shown in ig. 2) rises, encounters the foot 48, thereby raising the lever 47, and permittin the cloth and warps to let back, but immediately thereafter moves to its highest position passing completely from under the foot 4.8, and therefore, permitting the lever 4:7, to immediately drop. Accordingly, the let-back action occurs once only for each cam 4C5, of the main pattern chain.

Mode of opemzfz'om-Assuming that terry weaving is being done, the beatnpmotion shaft A, is rocked by the cam B, after a predetermined number of picks so that the read is given its fullforward stroke beating up several picks of Weft at once and henw forming the terry loops. Also, during the terry Weave the take-up acts uninterruptedly. Also during the terry Weave,

the pattern mechanism driven from the v crank shaft of the loom continues in action giving step by step motions to the multiplying chain and hence less frcquen step by step motions to the main pattern chain.

The change from the terry Weave to the ,When the last cam to let hack lever loosely plain Weave is determined by the cams 46, on the main pattern chain. When one of those cams l6, lifts the lever l9, the cam lever, D, is unl'atched from the beat-up motion shaft A. As a consequence, the cam actuation of said shaft ceases and it stands in a position to cause the reed to beat fully forward after each pick. The cam 46, holds the lever 49, up until the next forward movement of the pattern chain and, if a longer portion of plain Weave is required, cams it), are successively brought into action to maintain the lever 49, uplifted until the desired length of plain cloth has been Woven. 46, passes from beneath the lever 49, the cam lever D, is again cou plcd to the beatup motion shaft A, and the terry Weave is resumed.

It is important that the clothand warps should be let back in changing from terry to plain Weaving and during the plain weaving in order that the plain weaving may be compact and closely joined to the terry Weave. The letting back is effected by the second set of cams 45, on the main pattern chain in cooperation With the let-back lever 4.7. When one of the cams 25, approaches its highest point it raises the lever l7, and then permits it to drop. This lifting of the let-back lever results in unclutching the take-up mechanism from its drive shaft so that the strain of the cloth and warps causes the take-up to let back sufficiently to render the cloth compact. The let-back having occurred the take-up is immediately rcclutched to its driving mcchanisn'i. The cams 46, are so arranged on the pattern chain that the letback occurs at intervals throughout plain Weaving. Also the cams 46, can be so arranged that the cloth and warps are let back in changing from plain Weaving to terry Weaving.

The patternchains can be adjusted and timed by hand by means of the hand levers 54:, and 58, and the hand Wheel 5?.

I claim- 1. A terry loom having a beatup motion shaft, a continuously running cam, a cam lever loosely hung on said shaft and acted upon by said cam, a crank arm fast on said shaft, a coupling latch carried by said cam lever, a spring acting to move said latch to couple the cam lever and crank arm togather; a limiting slot in the cam lever, a stud on the crank arm extending into said slot and a spring connecting the lever and arm, in combination with pattern controlled means for moving said latch to uncouple the cam lever from the crank arm When plain weaving is to be done.

2.-A terry loom having a beat up motion shaft, a continuously running cam, a cam hung on said shaft and acted upon by said cam, a crank arm fast on said shaft, a coupling latch carried by said cam lever, and a spring acting to move said latch to couple the cam lever and crank arm together, in combination with pattern con trolled nieans'for moving said latch to uncouple the cam lever from the crank arm when plain weaving is to be done.

3. A terry loom having a beat-up motion shaft, a continuously running cam, a cam lever acted upon by said cam, a coupling latch carried by said cam lever, and a spring acting to move said latch to couple the cam lever and shaft together, in combination with pattern controlled means for moving said latch to uncouple the cam lever from the shaft when plain'weaving is to be done.

4. A terry loom having a beat-up motion shaft, a continuously running cam, a cam lever acted upon by said cam, and a coupling latch carried by said cam lever normally couplingthe cam lever and shaft together,

6. A terry loom having a take-up mecha-' nism including a pinion, a drive shaft and a clutch splined to said shaft and normally engaging the pinion, in combination with a clutch actuating lever movable to disengage said clutchv from said pinion, and pattern mechanism controlling the action of said lever.

7. A terry loom pattern mechanism having a multiplying chain with cams, a

sprocket wheel for said chain, driving mechanism imparting a step by step movement to said sprocket wheel. and chain, a main pattern chain having two setspof cams, a

. sprocket wheel for said main cha1n,'intermittently acting driving mechanism controlled by the cams on the multiplying chain and acting to move said main chain step by step, and two transmitting-levers actuated by said two set-s of main chain cams re spectively, in combination with mechanismcontrolled by one of said levers to change between plain and terry weaving, and mechanism controlled by the other lever to disconnect the take-up from its drive to let back the cloth and warps.

S. A terry loom pattern mechanism'having a main pattern chain having two sets of cams, a' sprocket wheel for said main chain, intermittently acting driving mechanism to move said main chain step by step,

and two transmitting levers actuated by said two sets of main chain. cams respectively, in combination with mechanism con trolled by one of said levers to change between plain and terry weaving, and mechanism controlled by the other lever to let back the cloth and warps.

9. .A terry loom pattern mechanism having intermittently acting driving mechanism to move said main chain step by step, and two transmitting levers actuated by said two sets of main chain cams respectively, one of said levers being maintained in active position by a cam during the dwell of the pattern chain, and the other lever moving back and forth as one of its controlling cams passes it, in combination with mechanism controlled by the first of said levers to change between plain and terry weaving, and mechanism'controlled by the other lever to disconnect the take-up from its drive to let back the cloth and warps.

.10. A terry loom pattern mechanism having, in combination, a multiplying chain with earns, a sprocket wheel for said chain, driving mechanism imparting a step by step movement to said sprocket wheel and chain, a main pattern. chain, a sprocket wheel for J said main chain, intermittently acting driving mechanism controlled by the cams on the multiplying chain and acting to move said main chain step by step, and a transmitting lever actuated by said chain cams.

11. A loom pattern mechanism having a multiplying chain with cams, a driveshaft therefor, a gear loose on said shaft for driving it, a clutch normally connecting said gear and shaft, a hand moved clutch lever for disconnecting said clutch and gear, and a handle on said shaft for turning it when so disconnected, in combination with a main pattern chain, a movable wh'eel'connected with said main pattern chain and adapted when moved to be driven by said shaft, and a lever controlled by the cam on the multiplying chain to move said wheel into engagement with said shaft, said lever also having a handle to enable said engagement to be hand efi'ected.

. 12. A. loom pattern mechanism having a multiplying chain with cams, a drive shaft therefor, a gear loose on said shaft for driving it, a clutch normally connecting said ear and shaft, a hand moved clutch lever or disconnecting said clutch and gear, and a handleon said shaft for turning it when so disconnected, in combination with a main pattern chain, a movable wheel connected with said 'main pattern chain and adapted when moved to be driven by said shaft, and a lever controlled by the cam on the multiplying chain to "muye said wheel into engagement with said shaft. ,l I.

13. A loom pattern niechanisni having a main chain, a multiplying chain with cams, and a lever controlled by the cams on the multiplying lever to bring said main chain into action, said lever also having a handle to enable the action of the main chain to be hand eflected.

14. A loom pattern mechanism having a multiplying chain with cams, a main pattern chain controlled by the cams on the multiplying chain, and an automatic drive forsaid chains, in combination with hand controlied means for disconnecting the automatic drive and for adjusting the time of both chains and the time relation between the two chainsp signed my name.

CHARLES F. MERRILL

Images