US1035353A

US1035353A - Loom.

Info

Publication number: US1035353A
Application number: US62202111A
Authority: US
Inventors: George H Jones
Original assignee: MONAGHAN MILLS
Current assignee: MONAGHAN MILLS
Priority date: 1911-04-19
Filing date: 1911-04-19
Publication date: 1912-08-13
Anticipated expiration: 1929-08-13

Description

G. H. JNES.

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A PPLIUATION HLED APBJQ, 1911.

1,035,353. Patented Aug. 13, 1912.

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:UNTTED STATES PATENT OFFICE.

GEORGE H. `JONES, OF GREENVILLE, SOUTH CAROLINA, ASSIGNOR. TO MONAGHAN MILLS, 0F GREENVILLE, SOUTH CAROLINA, A CORPORATION 0F SOUTH CAROLINA.

. LOOM.

Specification of Letters Patent. Patented Allg. 13, 1912.

-I Application led April 19, 1911'. Serial No. 622,021.

To all when, it may cof/wem:

Be it known that I, GEORGE H. JONES, a

`citizen of the United States, and 'resident of Greenville, in the county of Greenville and State of South Carolina, have invented .certain Anew and useful Improvements in the harness may be regularly operated andintermittently arrested at predetermined rintervals of time to admit of eXtra or filling cords being run across the goods by any number of odd picks. y

The object -o f the invention is to provide a simple form of apparatus to be applied to the standard form 'of loom for producing corded or cross-barred fabrics such as are e generally woven 011l looms having dobby heads, said mechanism being adapted to'be applied between the treadles and the harness' and involving an oscillating shaft having awdrum thereon connected with the respective treadles, a Fsecond drum thereon operatively,connected with the shedding harness,

panying drawings, in which,

Fi e 1 is a rear elevation of a loom embodying the invention, certain portions of the loom mechanism being omitted for the sake of clearness, Fig. 2 is an enlarged view, in elevation, of the actuating mechanism for controllin shed, Fig. 3 is a section on line 3 3 of Fig. 2, Fig. 4 is a horizontal section on line 4-4 of Flg. V2,'Fig. 5 is a perspective view of the ratchet and itsassociatedA pattern device, Fig. 6de an enlarged longitudinal section through the loom showing the relation of the parts in the normal shed forming operation, Fig. 7 is' a corresponding detail view illustrating the operation of unlocking the harness drum 'from its supporting shaft to producepa dwell in the shed forming operation, and 8 is a similarview tlie formation of the indicating the relation of parts just before the completion of the dwell.

. Referring to the drawings A indicates th loom frame provided with the usual harness E, E and treadles M, N actuated by cams L, L mounted upon cam shaft K.

Secured to the front and rear rails of the loom frame are two girths B,- B to which are secured brackets or hangers b, o. Journaled in bearings in the upper ends of the brackets o, b is a shaft a provided with collars d, d to prevent longitudinal movement of said shaft. J ournaled in. similar bearings on the lower ends ofjthebhangers b, b is a rock shaft y hereinafter rmore particularly referred to. JOn the outer ends of the rock shaft a are secured drums h which operate the usual selvage harness which is omitted for the sake of clearness, see Fig. 1.

' Fast to -the shaft a is a drumv to which are attached straps c running to the treadles M, N, by means of which said shaft is oscillated as said treadles moveup and down under the influence -of'cams L, L. Looselymounted onl theI shaft a is a second drum g engaged by straps j connected with vthe front and rear jack sticks G, G', which in turn are connected to the front and rear h arnesses.

One end of the drum g is provided with Y pressed pawls m, n, adapted to normally en- Y gage oppositely facing shoulders on a collar r'fast to the shaft a, and thereby 'lock drum gfto shaft a, as indicated in Fig. 6. Pawl n l1s provided with a tailpiece nfby. means of which said pawlv n may be rocked out of engagement with its coperating shoulder on collar 1' andthereby unlocgk drum g and collar a and permit shaft a to, oscillate while drum -g and the harness onnected thereto remain idle or stationary.

Pivoted on a short stub shaft-mf secured in astandard or bracket attached to' one of the. girths B, see Figs. 1 and 4, is a lever @,j .having a shoulder o" near its outer end,

which normally lies out ofthe path of travel ofthe tailpiece n of pawl n, but which, when projected into the path of movement of said tail-piece swings pawl 'it out of engagement with the coperating shoulder on collar 7', thereby unlocking drum g from said collar r and shaft a.

Projecting from the lett-hand hanger 7) is a stub shaft s upon whichis mounted a ratchet-wheel t to which is secured a pattern device, which in its simplest torni comprises a disk t', having thereon peripherally-spaced lugs or abutments u which, as the ratchet.\\'heel,t is rotated, successively engage and disengage the lever o to cause the latter to pass into and out. of coperative enga gement with the tail-piece oi pawl a. Obviously, in lieu of the pattern disk t', with the lugs u thereon, a chain wheel with pattern lugs thereon or other equivalent pattern mechanism may be employed. A

spring z, secured to the loom frame, bears upon the ratchet t and acts to prevent overthrow and any retrograde movement of the same.

Fast to rock-shaft y is a lever a1, having on its outer end a bowl or roller adapted to contact with the lower edge of treadle M. Likewise, fast to rock-shaft 7/ and laterally spaced from lever fvg is a second lever fr', to the outer end of which is pivoted a. pawl 1r coiiperating with the teeth of ratchetwheel 15, the parts being so adjusted and arranged that, as the treadle M moves downward, lever rocks the shaft y, thereby moving lever m and pawl w upward, so thatsaid pawl w rotates A ratchet-wheel t and pattern disk t forward one step, substantially equal to the length of one ratchet tooth. As the treadle M moves upward the weight of lever and pawl w rocks shaft-.y in the opposite direction, so that the end of pawl w falls behind the shoulder of the next succeeding ratchet tooth and the meeh anisi'n is in position for av subsequent operation, a suitable stop being provided to pre vent lever a; from following the treadlein its upward movement for more than the desired distance.

The operation of the apparatus as de scribed is as follows: Assuming that it is desired to weave a fabric with lling cords whichare run across the goods at, say, every eighth, ninth and tenth pick; during the preceding picks, the shed is formed inthe regular way for each travel ot' the shuttle by means of the normal operation of treadles M, N, which. are forced down. successively by cams L, L. The reciprocating motion of the treadles imparts a regular y oscillating motion'to shaft a, through straps 7'; and drum f, the oscillation of said shafta imparting a regular and alternating re ciprocation or" the. harness E, E by means of drum g and straps y', as will be understood, said drum being locked to shaft a by"pawls m, n on plate 0 engaging the shoulders Qn collar has in Fir. 6. Each downward movement of the t-readle M causes the end of said treadle to engage the end ot lever and rock the shaft i ther-eh)Y causing .lever a2' to move pawl 'w upward and rotate the ratchet-wheel t one tooth-space. The intermittent rotation of ratchet-wheel 25 eventually brings one of the lugs u into engagement with the lower edge of lever a, thereby lift-ing said lever fu into the path ot the tail a of pawl n, and, as said tail travels over the lever, causes a disengagement oi the pawl from the locking shoulder on collar r and permits the-'tail-piece as the parts reach t-he position shown in Fig. 7, to en gage the shoulder i". Said pawl a is thereby held out ot en gageinentwithits coactingshoulder on collar r, thereby releasing or unlocking plate 0 and drum g trom the shaft, so thatsaid drum y] remains stationary. The lug' u'remains in contact with lever o during a predetermined number of movements of t-readle M or picks ot the shuttle, depending upon the length ot the tace of said lugu and the number of teeth on the ratchet-wheel. During this engagement of the lug u w1th the lever 'u the drum g remains stationaryon the shat't a and the harness is caused to dwell or remain stationary while the treadles continue to rock up and down and the shaft a to oscillate, so that a number of picks ot' the shuttle may be effected to run the desired number of filling cords or yarns through the shed. Vhen lug u passes out of engagement with the lever e the latter will drop by reason ot' gravity, thereby disengagingthe shoulder a of said lever from the tail piece of pawl a and permitting the pawl to again engage its coperating shoulder .on the collar r during/the succeeding oscillation of said collar. The foregoing operation is repeated as each lug u passes into and. out of engagement with the lever e and during such operation the movement of the harness is arrested while the predetermined number ot picks is effected.

Having thus described my invention, what` I claim is ness; ashaft; means for operating the harness from the shaft; cam and treadle mechanism for oscillating said shaft; and means interposed between one treadle and the shaft and actuated by the treadle to etlect a disconnection of the harness-operating means and -the shaft and a consequent predetermined rest period of. the harness.

2. ln a loom, the combination of the harness; a. shaft; a loose drum en the shaft for operating the harness; means for normally locking the drum to the shaft; cam and treadle mechanism for oscillating said shaft; and means interposed between one treadle and the shaft and actuated by the treadle for periodically unlocking the drum from the shaft and effecting predetern'iined rest periods of the harness.

ln a loom, the combination of the harness; a shaft; a loose drum on thesliitt Jfor operating the harness; means for normally "i locking the drum to the shaft; cam and treadle mechanism for oscillating said lshaft; a lever for releasing said locking 4. In a loom, the combination of the har` ness; a shaft; a loose drum on the shaft for operating the harness; means for normally locking the drum to the shaft; cam and treadle mechanism for oscillating said shaft; a lever for releasing said locking means; a rotary pattern device coperating with said lever to engage the same with said locking means atpredetermined intervals; and means operated from a treadle to drive the pattern device.

5. In a loom, the combination of the harness; a shaft; a loose drum on the shaft for operating the harness; means for normallyT locking the drum to the shaft; cam and treadle mechanism for oscillating said shaft; a lever for releasing said locking means; a

. rotary pattern device coperating With saidy lever to engage the same with said locking means at predetermined intervals; a-ratchet l for moving the pattern device step by step;

and a pawl actuated by a treadle for rotating the ratchet, whereby predetermined rest periods of the harness are effected.

6. In a loom, the combination of the harness; a shaft; a drum on the shaft for reciprocating the harness; a collar fast to the shaft and having oppositely-directed shoulders; pawls on the drum normally engaging said shoulders to lock the drum to the shaft; cam and treadle mechanism for operating the shaft; and means interposed between one treadle and the shaft and actuated by the treadle to effect a disconnection of the harness-operating drum and the shaft, and a consequent predetermined rest-period of the harness.

7. In a loom, the combination of the harness; a shaft; a drum on the shaft for reciprocating the harness; a collar fast to the shaft and having oppositely-directed shoulders; pawls on the drum normally engaging said shoulders to'lock the drum to the shaft; cam and treadle mechanism for operating the shaft; a lever for releasing one of the pawls which lock the drum to the shaft; a rotary pattern device coperating with said lever to engage the same with said Alocking pawl at predeterminedlintervals; a ratchet for moving the pattern device step by step; and a pawl actuated by a treadle for rotating the ratchet, whereby predetermined ,restperiods of the harness are effected.

In testimony whereof I have signed my name to this specification in the pres/ence of two subscribing Witnesses.

GEORGE H.` JONES.

Witnesses:

DAvID JENNINGS, HENRY HoRNnR.