US1254541A - Warping-machine. - Google Patents

Description

A. SAULNIER.

WARPING MACHINE. APPLICATION r|LED1uNE2\,1915.

Lmm. Patented. Ia-1.221918. 4

4 SHEETS-SHEET l.

Engg.

A. SAULNIER. wAnPmG MACHINE.

APPLICATION FILED IUNEZI, I9I5. n d

Patented- Jam 22, 1918.

4 SHEETS-sneer 2.

Wzness:

A. SAULNIER.

WARPING MACHINE.

APPLICATION FIL ED 1uNE21-.1915.

Patented Jan. 22, w18.

4 SHEETS-SHEET 3.

A. SAULNIER.

WARPING MACHINE. AAPPLICATION FILED .IUNE2I. I9I5-v LQMML l mente@ Jan. 22,1918.

4 SHEETS-SHEET 4.

ensuite SAULNIER, or WALTHAMMASSACHUSETTS, Assiettes,

uur une,A

sy ivrnsun ,Assiettey MENTS, To inneren CORPORATION, or nornoenn, MnssaeHUsr-:rrsn Con-Pone? TION OF MAINE..

' WAR'BING-MACHINE.

Specification of Letters-Patent. Patil/uitg@ Jiu-1, 22, 1

Applicationld .Tune 21, 191,5. SerialNo. 35,241.

To all whom z't may concerne Be it known that I, ARsENE SAULNIER, a

citizen of the United States, residing.l at` lValtham, in the county of lVl1ddleseX,State of Massachusetts, haveinvented a certain new and useful lmprovementin `Warping Machines, of which the following is a speciltication, reference being hadtherein to the accon'ipanying drawings.

The invention `provides means for enabling the attendant upon a warping maf chine to distinguish betweeitaJ stoppage ofy 'the VWinding operation dus to the action of the stop-motion devices which are employed for detecting breaking or failure of the in-4 dividual Warp-yarns, and a stoppage due to the action oi' the measuring devices. lltL provides means for preuening thek attend-` ant from inadvertently restarting thewind-.-

Ving operation in case such operation has beenl arrested through the action ofthe measuring devices. This means comprises an automat-ic lock for the shipper deriees bywhich the said devices are locked automatically in unshippcd condition after being tripped through the action of the measuring means, out which leaves the shipper devices un-4 locked and capable of being operated to reship the driving connections` into action in case the stoppage of they machine Was` due` to the action of thestop-,motion devices em-` ployed for detecting` breaking or failure of warp-yarns.;

An illustrative embodiment of theinteir,

tion is ,shown in the drawings, in Vwhich latter* Figure 1 is a partly-sectional side elevation ot' a portion of a warping machine hav ing` the said embodiment.applied thereto, the driving power beingion.

F 2 is a similar View showing the shine` per devices in unshipped andlocked condition.

Fig. 3. Sheet l, is a lView of the" lock, ete,

Fig'. .6, Slieetcis sideelevation of the.

clock KVand lock of -the preceding gures,..

Fig.. 7 isanglelevatien tl ereofffrointhe viert-thereof..

`Fig. 9 is a side elevation of certain parts 55 of the warping machine, includingthe yarn. stop-motion but omitting the measuring `roll and most of Vthe gearing of the clock.

Having reference to the drawings,-

@ne side-frame lV of a warping inachineis shown in Figs. l and 2,. and in connection) thenewith are shown measuring7 stopping, and shipper-devices of Well-known construc-1 tion andarrangemlent, and in additionthe illustrative embodiment aforesaid of the inf` Vention. The said measuring` devices com;-y prise the measuring roll *2 lwhich is-rotatedw through the Contact' of the traveling "yarns, With `its. periphery, thenotched hub er scroll 10, and the motion-transmittingconnections by Whichthe.rotation of :measuring roll 2 serres to cause the notched hub or scroll tot rotate.` The said vconnections comprise; the Worin ton one journal, ,3, of the n'ieasuring roll, the Worin-wheel 5 engagedby the said 75 Wei-'mand fasten the oneend of afshort shaft supported in bearing 7, theiworm 8 en the other end ot' such short shaft, and theV Worm-wheel 9 fast with the notched hub or scroll and engaged by thesaid Worm'.v The 80 hub or scroll and the worn'i-u'heel` Q'are supe;` portedby a stud ll upon Wliichtheyare adapted to rotate., One element'of the saidy stopping devices consistent the; indicating lever l2, mounted pivotally upona long stud( 13 standing out from the side-framel- The said indicating lever ispcontnolledi-in usual; manner by `the hub or scrolllO. Thus; one arm et' the said lever isloverweighted so as to cause, as usual, a lug IQfT-thatfprojects from `the saidarm to `bear aga-inst. the: `pes.` riphery ,of thenctclied hub or scuolllO. and i to enter a notch when theilatte-r isfpresentedf tothe lug by `the rotation of the Ahub or scroll. The lever 12 is, in practico, so related 95 to the vibrator or feeleriQB. Q3 of the ideiice's employed to stop the machineWhen-a `yarn breaks or runs out-thatso long asthe even# Weighted arm is supported by the periphery-- of the hub or 4scroll its otheiqarm is clear 100 of the vibrator vor feeler, but when Va notch in .thehubcr .Scroll is presented in position to receive the lug lZarthe movement of-` the later which carriesgsaid ,lug Iinto such notch swings .,itsethcr arm. into position torche; stru-ctfthe vibratori-ir ,teelr- In Fig. 9 the overweighted arm is supported vby the .pe-1 ripheuy the vbuttior Screlh .as ust- Einen@A i ,v rockshaft 25 of the vibrator or feeler.

tioned, and the other arm, which has an upwardly facing hooked end, is held thereby belowthe path of movement ot' aV lateral projectionon an arm 24 that vis fixed uponC the onsequently, the vibrator or feeler is permitted to vibrate yor swing unobstructedly. Vhen a notch inthe hub or scroll is presented in position as just mentioned so that the lever in 12 is permitted to turn, the said hooked end is raised so as to intersect the said path of movement. The resulting engagement of the varm 24 of the Vibrator or feeler with the obstructingarm of the indicating lever 12 15 results in the actuation of intermediate devices and the tripping of the shipper-devices and unshipping ofthe drivingmeehanism of the machine. T he yarn-stop-motion with its vibrator or feeler and tripping devices are not shown in Figs. `1 to 8. Various oonstructions thereof are well-known in the art, and those with which the invention is combined in practicegmay be of any convenient and approved character and construction.

275 fin Fig. 9 thebars 23, 23, of the vibrator or feeler there shown yare arranged to coperate in usual manner with swinging dropwires 26, 26, mounted pivotally in connection with 'supports 27, 27',v and in practice ofhung upon the respective yarns that are beingwound in themachine. The required f" vibratory movement Vis communicated to the vibrator or feeler by means of a rotating grooved cam 28, a lever 29 that is engaged and actuated by the'said cam, and give-away connections between the said lever and an arm 25a that is fixed upon thev roekshatt 25 ofi the Vvibrator or feeler.' The said give-k away connections comprise inthis instance toV a bar 30 that-is connected pivotally by its lower end vtothe lever 29,-and a second bar V31 that is connected pivotally by its upper endvto the arm 25, the said bars being engaged with each other. The two bars are overlapped with each other and the head of the bar 30 occupies a depression formed in one side face of vthe bar 31 between a squareshoulder 31 and afbeveled shoulder .31", the end 'of the said head being squaret 60 ott 'tor engagement with the said square shoulder 31a and the head being also formed with a beveled shoulder to tit the beveled shoulder 31". The head of the bar 30 is retained normally in the said depression by the tension ot' an expanding spiral spring 32 surrounding a pin 33 projecting :troni-the bar 31 through a longitudinal slot 34 in the head of the bar 30, the said spring being confined and compressed between the head of the bar 30 and a shoulder yor head'on the pin 33. The two barspass through a guide 35 that is tixedly attached to the machinerame 1, the said guide being located below the head of the bar 30. `At the back of the bar 30 it is furnished with a shoulder 30a for co-aotion with the outstanding toe of a tripping lever 36 which is pivoted to the machine-frame 1. In the operation of the machine, as the rotating cam 2S moves the lever 29 and bar 30 upward the head of the said 70 bar acts against the square shoulder 31'1 ot the bar 3l so that movement is transmitted to the b ar 31 and arm 25 to the vibrator or eeler, swinging the bars 23, 23, of the latter toward the right in Fig. 9. As the lever 29 and bar 30 are moved downward by the action of the cam, the bar 31 and arm 25a are moved in the same direction, partly by gravity and partly as a result of the engagement ofthe beveled Shoulders with each other, and thereby the vibrator or teeler is swung with yielding force toward the drop-wires 2G, 2G. In case the movement ot the vibrator or eeler toward the dropwires should be arrested by a dropped dropwire the arm 25a and bar 31 will be arrested in their downward movement and bar 30 will slip upon bar 3l. Normally the shoulder 30u of the bar 30 passes down at one side of the toe of the tripping lever 3G, but 90 when the bar 31 is held from movement downward so that the bar 30 slips thereon the movement of one beveled shoulder upon the other spreads the two bars apart. Bar

31 rests against one side of the lixed guide 95 35. Consequently as the two bars are forced apart by the interaction of the beveled shoulders the bar 30 is shifted over toward the tripping lever 3G so that in the continued downward movement of the bar 30 its shoul- 100 der 30a engages with the toe of the trippinglever 36 and aetuates the said tripping-lever to call the shipper-devices into action to bring about the unshipping of the driving power of the machine. lVhen, subsequently, the lever 29 and bar 30 are moved upward the said bar slips upward upon the bar 31 until the head of bar 30 renters thc depression in the bar 31, after which the two bars move in unison in actuating the vibrator or feeler. Certain of the parts of the shipper-devices with which the features ot the invention are connected in operation are shown. They are in this instance of a construction'and arrangement in common use, 11.5 although they may be of any other preferred construction, ete. The said shipper-devices include the usual shipper-rod or detent bar 14 having its upper end arranged to work in a slot 15 in a holding plate 16 projecting 120 outward from side-frame l, the said upper end being shouldered at one side for engagement with the bottom of the said holding plate at one end of the slot 15. The lower end of the said shipper-rod or detent-bar is shown as connected pivotally in usual manner with an arm 18 of a rockshaft 19, the latter being mounted in bearings in the opposite side-frames and having connected therewith an arm 20 on which 13o Y endwise by its spring c. w v

shipper-rod ordetent bar as soon as-disingente. In' the case 'f the illustrated construction this is accomplished through the action of the tripping-lever 3G. The Vlatter has a lateral projection forv engagement with the shipper-rod or detent-bar, and when the tripping-lever is actuated through the engagement therewith of the shoulder 3()a of the downwardly moving bar-30 the said projection moves the shipper-rod or detent-barY out of engagement with holding-plate 16. This dislodging of the shipper-rod or detent bar releases the shipper-devices and accordingly they act to unshipfthe driving connections and sostop the operation'of'the machine. This takes place without'calling the bolt b into action. 1t will be observed that therefore' when released by the action of the yarn-stop-motion devices in case of failure or breakage of a yarnthe shipper-devices are not locked by the lock b, and the driving connections can beshipped-on again at the will of the attendant merely by pressing down upon the treadle 22, thereby restarting the machine. The freedom of the treadle to be depressed will indicate to the attendant the fact that the stoppage was due to yarn failure or breakage.

VFor the purpose of automatically locking the shipping-devices in unshipped condition when the machine ,is stopped automatically under the dictation of the measuring devices, I combine the bolt b operatively with the latter devices. This is accomplished in the present instance by furnishing indicating lever 12 with aztripping linger m. The latter is arranged so that while lug 12a is engaged by the periphery of hub or scroll -10 and the lever is held thereby in inoperativeposition, the finger m is kept retracted from latch f and entirely clear of the same, as in Figs. 1 and 3, but also so Vthat when a notch of hub or scroll l0 is presented in position to be entered by the lug the resulting'movement of the indicating'lever 12, in addition to calling the yarn-stop-motion mechanism into play to dislodge the shipperrod orY detent bar from the holding-plate, will carry finger m against latch f so as to unlatch the bolt and permit it to be moved The rising of the lodged. will carry the hole o into line with the acting end of bolt b, and as soon as such hole and acting end register with each other the now unlatched bolt will enter the hole.

See Fig. 2.V The vshipper-devices will be locked thereby in unshipped condition, and

cannot be operated by the attendant to restart the machine until after the bolt has Ybeen withdrawn kfrom holeV o and thereby disengaged from the shipper-rod or detent bar.Consequent'ly Van attempt of the attendant to restart the machine by-pressing down upon the treadle 22 will fail. The inability to move the-shipping devices to restart the' machine will render apparent the fact that the stoppage was due to the automatic action of the measuring devices and not due to detection of breakage or failure of a yarn.

The spring c may be of suiiciently strong tension to actuate bolt b to dislodge the shipper-rod or detent bar from holding engagement with the under-side of holdingplate 16 immediately upon the unlatching of the said b olt, without depending upon the yarn-stop-motion.devices being called into action through interaction of indicating lever 12 and the vibrator or feeler.

The hub or scroll 10 of the so-called warper clock, as herein described, may be constructed and combined so as to act simply to bring about the automatic stopping of the machine when the length of yarns required for a warp has been wound. In such case the said hub or scroll may have only one notch. The drawings show a clock of the kind used in a lease-warper, that is to say designed to stop the machine automatically at intervals to permit leases to be struck and successive sets of lease-threads to be introduced among the threads of a warp, and finally stop it when the entire required length of warp has been wound. For these purposes, the hub or scroll 10 has formed in its periphery longitudinal grooves 10, 10a equidistant from one another, and it also is formed with a deep radial notch 10b at the end of one of the said grooves. The periphery of the hub or scroll is grooved circinnferentially, also, as shown in Figs. 7 and 8, to receive the end of the lug 12. the groove being formed spirally around the hub or scroll and terminating at the deep notch 10, so that in successive revolutions of the hub the lever 12 will be caused to travel gradually to the outer end of the hub. To permitthe lever to travel outward and subsequently be moved inward again to the desired starting position, its hub-portion or sleeve is mounted upon a long pivotal stud 13 projecting from side-frame 1, with capacity to slide lengthwise of the latter. W'ith this construction, as is well-known, the winding is started with the lug 12a of the lever 12 entered into the spiral groove at a distance inward from the outer end of the hub or scroll proportioned to the length of warp required, and each time that in the rotation of the hub or scroll a groove l()n isppresented to the lug 12"L the indicating lever becomes effective to call a stoppage of the machine.V This permits the attendant to strike the leases and introduce the leasing threads, the machine being restarted each lill Ylili all dii

till

nana-,aai

justment ot' the linger either upward into such a position thereon that its acting end will not disengage the latch when the lug l2a enters a groove '10a and will effect disengagement only when the said lug enters the tinal notch 10h; or downward into such a position thereon that the finger will disengage the latch every time the lug l2a enters a groove as well as when it enters the iinal notch.

When automatic stoppage takes place in the case of an ordinary warping machine it is not always apparent to the attendant what has operated to occasion the stoppage. The stoppage may have been brought about by the action of the yarn-stop-motion, or it may have been brought about by that of the clock. ln the majority of cases it will be due to the operation of the yarn-stop-motion, and-as this is expected by the attendant she ordinarily proceeds accordingly. That is to say, she will lookl to ascertain if a thread .has broken and will undertake to nd and mend the same. Usually, in the endeavor to locate a broken thread, the attendant starts up the machine in ordento draw the threadsiorward so that she may catch sight of the broken end in case the breakage should have taken placeybetween 'the wai-per and the creel. The restarting of the machine draws the broken end forward into view. ln case the machine has not been stopped by the yarn-stop-motion but by the action of the clock, this restarting not only entails a loss of time but it draws forward an excess quantity of yarn from the creel and winds the same, thereby winding a length ol warp exceeding the predetermined length. My invention obviates these drawbacks. When a warping machine is equipped with the invention, the attendant is at once informed, in attempting to restart the ma.- chine following an automatic stoppage, whether such stoppage was brought about by the yarn-stop-motion or by the clock. It it was brought about by the yarn-stop-motion she is able to actuate the shipper devices to restart the winding. li it is brought about by the clock, she finds the shipper mechanism locked and is unable to restart `the machine.. No time is lost in ascertaining whether or not a yarn has broken or mechanism of the machine,

failed, and there is no winding oit an excess length.

l claim as my invention l. In a warping-machine, in combination, a roll engaging with the yarns and having combined therewith a device operated thereby for registering the length of yarns passing through the machine, means for occasioning stoppage by unshipping of theA driving-power on passage of a predetermined length of yarns, the shipper-devices for the driving mechanism ot the machine controlled by such means, a yarn-stop-,motion also controlling the said shipper-devices, and a lock by which the said shipper-devices are locked automatically in unshipp'ed condition when tripped through the actiono'l the said means but left unlocked and capable of being operated to reship the driving connection's into action when tripped on breakage orfailure oi a yarn.

2. In a warping-machine, in combination, the shipper-devices of such machine, a yarnstop-motion adapted to cause unshipping ot' the driving-power in case of yarn failure, a shipper-lock, and devices for registering the length of yarn, arranged to act through the feeler connections ofthe yarn-stop-motion to cause unshipping when a predetermined length has been warped, and operatively combined withthe saidshipper-lock to call the latter into action at such time ,to lock the shipper-devices with the driving-power unshipped.

3. In a warping-machine, in combination, theshipper-devices of lsuch machine, a yarnstop-motion' adapted to cause unshipping of the driving-power in case of yarn failure, a shipper-lock, and yarn measuring devices arranged to act through the. feeler connections of the yarn-stop-motion to occasion .unshipping when a predetermined length oi yarn has been warped, and operatively combined to call thesaid shipper-lock into action at Vsuch time to lock the shipper-devices with the driving-power unshipped. y

Ll. ln a warping-machine, in combination, the shipper-devices ol. such machine, a shipper-lock, a yarn-stop-motion adapted to cause unshipping of the driving-power in case of yarn failure, and yarn measuring devices including a roll engaging with the yarn in its passage and a lever that acts through the l'eeler connections of the yarn-stop-motion to occasion unshipping when a predetermined length of yarn has been warped and also acts to call said shipper-lock into action at such time to lock the shipper-devices with the driving-power unshipped.

5. In a warping-machine, the combination with the clock-mechanism, the indicating member 'through which said mechanism brings about stoppage, and the manuallyoperated shipper-devices for the driving of a locking dewhereby the lock is released to lock the shipvice for locking said shipper-devices with the driving power unshipped called into operation through the said indicating member.

6. In a warping machine, the combination with the clock mechanism and the manuallyoperated shipper d evices for the driving mechanism of the machine, of a lock for the shipper devices and a latch controlled by said clock for holding the lock inoperative during the regular working of the machine,

per devices in unshi p )ed position when said devices have been tripped by the clock.

7 In a warping machine, the combination with @the clock mechanism, the indicating lever, and the shipper devices, of a lock for the shipper devicesholding the latter inoperative during the regular working of the machine and a latch yfor the lock controlled by said indicating lever through adjustable means, whereby the operation of said latch by the clcck may be varied, as and Yfor the purposes described. Y A

8. In a Vwarping machine, the combination with the clock Vmechanism and the shipper devices unshipping automatically when released, of anautomatically actuated locking device retained in inoperative condition by means controlled bysaid clock mechanism and adapted when released by said mechanism to move the shipper devices into position for unshipping and also to lock the same in unshipped position, as and-for the purposes described. i

9. InawarpingV machine, in combination, shipper-devices, clock mechanism, an indicating lever controlling the shipper-devices,

a shipper-lock, and Vmeans intermediate the lever and the shipper-lock through which the lever calls the shipper-lock into action, said means adjustable to render the shipperlock idle. Y

10. In a warping machine, in combination, shipper-devices, an indicating lever controlling the shipper-devices, clock mechanism constructed to produce movements of the indicating lever of different extents, and av shipper-lock adapted to be controlled by the indicating lever,'ca1led into action by a movement of said lever of a given extent andrleft idle in case of a movement of less extent. n i

11. In a warping machine, in combination, shipper-devices, an indicating lever controlling the shipper-devices, clock mechanism constructed to produce movements of Ythe indicating lever of different extents, a

shipper-lock, and a latch for the shipperlockoperated to free the latter in case of a movement of given extent of the indicating lever and remaining in control thereof in case of a movement of less extent.

12. In a warping machine, in combination, the shipper-devices thereof, a yarn-stopmotion adapted to occasion unshipping of the driving-power in case of yarn-failure, yarn-measuring devices, including an actuating roll and a scroll that are rotated by the yarn in its passage and a scroll-lever that renders said yarn-stop-motion devices effective to occasion unshipping when a predetermined length of yarn has passed, and a Shipper-lock which also is called into action by the scroll-lever at such time to lock the shipper-devices with the driving-power unshipped.

13. In a warping machine, in combination, a yarn-stop-motion adapted to occasion unshipping of the driving-power in case of yarn-failure, measuring devices including an actuating roll and a scroll that are rotated by the yarn in its passage and a scroll-lever that renders said yarn-stop-motion effective to occasion unshipping when a predetermined length of yarn has passed, the shipper-devices of said machine including a detent-bar, as ll, and means caused by the scroll-lever to engage with the said detentbar to lock the shipper-devices with the driving-power unshipped.

let. In a warping machine, in combination, a yarn-stop motion adapted to occasion unshipping ot' the driving-power in case ol yarn-failure, the shipper-devices of said machine including a detent-bar, as Il, a shipper-lock adapted to engage with said detent-bar to lock the shipper-devices with the driving-power unshipped, a detent normally keeping said shipper-lock out of engagement with the detent-bar, and measuring devices including an actuating roll and a scroll that are rotated by the yarn in its Vpassage, and a scroll-lever that renders said yarn-stop-motion effective to occasion unshipping when a predetermined length of yarn has passed and that also operates said detent to free the shipper-lock for engagement with said detent-bar to lock the shipper-devices with the driving-power unshipped. n

15. In a warping machine, warp measuring mechanism, stop-motion mechanism comprising a longitudinally movable shipper rod having a shoulder, a plate engaging said shoulder to prevent unshipping movement of said rod and thus maintain the stop-motion mechanism inoperative, a knock-off lever for said rod, a latch to engage said rod in and maintain it in unshipped position, and means made operative by the measuring mechanism upon the completion of a predetermined length of warp to actuate said knockoff lever and cause said latch to engage said rod.

16. In a warping machine comprisingl warp measuring mechanism, warp-end absence or failure detecting mechanism, stopmotion mechanism actuated both by said measuring mechanism upon the completion of a predetermined length of warp and by said detecting mechanism upon the absence or failure of a' warp-end comprising a starting and stopping member, locking means cooperating with said member, and means actuated by the measuring mechanism upon its actuation of the stop-motion mechanism to cause the locking means to lock the starting and stopping member in inoperative position.

17. A warping machine comprising warp measuring mechanism, stop-motion mechanism actuated both by the measuring mechanism upon the completion of a predetermined length of warp and by the absence or failure of a warp end, means to lock the warping machine against restarting actuated by the measuring mechanism upon the completion of a predetermined length of warp, and means to prevent the warping machine from being so locked when the stopmotion mechanism is actuated by the absence or failure of a warp end, said means including an element controlled by the warp measuring mechanism.

18. ln a warping machine, in combination, shipper-devices, clock mechanism, an indicating lever controlling the shipper devices, a shipper-lock, and means intermediate the lever and the shipper-lock through which the lever calls the shipper-lock into action.

19. In a warping machine, in combination, a yarn-stop-motion adapted to occasion unshipping of the driving power in case of yarn-failure, registering devices including a scroll and a scroll-lever that renders said yarn-stop-moticn effective to occasion unshipping when a predetermined length of yarn has been registered, the shipper-devices of said machine including a detentbar, as 14C, and means caused by the scrolllever to engage with the said detent-bar to lock the shipper-devices with the drivingpower unshipped.

20. In a warping machine, in combination, a yarn-stop-motion adapted to occasion shipping of the driving-power in case of yarnfailure, the shipper-devices of said machine including a detent-bar, as 14, a shipper-lock adapted to engage with said detent-bar to lock the shipper-devices with the drivingpower unshipped, a detent normally keeping said shipper-lock out of engagement with the detent-bar, and registering devices including a scroll and a scroll-lever that renders said yarn-stop-motion effective to occa` sion unshipping when a predetermined length of yarn has been registered and that also operates said detent to free the shipperlock for engagement with said detent-bar to lock the shipper-devices with the drivingpower unshipped.

In testimony whereof I affix my signature.

ARSNE SAULNIER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

Corrections in Letters Patent No 1,254,541.

Itis hereby certified that in Letters Patent No. 1,254,541, granted January 22, 1918, upon the application of Arsne Saulnier, of Waltham, Massachusetts, for an improvement in warping-Machines, errors appear in the printed specification requiring Correction as follows: Page 6, claim 7, line 17, beginning With the Word holding strike out all to and through the Word machine line 19 .same page and claim, line 19, after the Word look insert the words holding the Zaifere'noperative during the regular working of the machine and; and that the said Letters Patent should he read With these Corrections therein that the same may conform to the record of the ease in the Patent Oiee. l

Signed and sealed this 22d day of April, A. D., 1919.

r F. W. H. CLAY,

Acting @ornmz'ssz'oner of Patents.

[SEAL]

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