US1625239A

US1625239A - Feeding mechanism for ruling machines and the like

Info

Publication number: US1625239A
Application number: US100699A
Authority: US
Inventors: Broadmeyer Albert
Original assignee: WO Hickok Manufacturing Co
Current assignee: WO Hickok Manufacturing Co
Priority date: 1926-04-08
Filing date: 1926-04-08
Publication date: 1927-04-19
Anticipated expiration: 1944-04-19

Description

P 1927' A. BROADMEYER FEEDING MECHANISM FOR RULI-NG MACHINES AND THE LIKE Filed April 8, 1926 4 Sheets-Sheet 1 a *Qa gwuentoz dlber'f Brandi: er

April 19, 1927. 1,625,239

A. BROADMEYER I FEEDING MECHANISM FOR RULING MACHINES AND THE LIKE Filed April 8, 1926 4 Sheets-Sheet 2 I If fllberl' Braadme Er wk 7 I I attorney 1 2 9 9 A. BROADMEYER FEEDING MECHANISM FOR RULING MACHINES AND THE LIKE Filed April 1926 4 Sheets-Sheet 3 1,625,239 l 1927' A. BROADMEYER FEEDING MECHANISM FOR RULING MACHINES AND THE LIKE Filed April 8, 1926 4 Sheets-Sheet 4 too % I dlberl- 51224511178 Patented Apr. 19, 1927.

NE'EE STATES PTENT FFIQE.

ALBERT BEOADIVIEYER, OF HARRISBURG, PENNSYLVANIA, ASSIGNOR TO THE W. O.

I-EICKOK MANUFAOTIJRING COMPANY, OF HARRISBURG, FENNSYLVANIA, A COR- POBATION OF PENNSYLVANIA.

FEEDING- MECHANISM FOR RULING MACHINES AND THE LIKE.

Application filed April 8,

The present invention relates particularly to means for effecting and controlling the movement of sheets in ruling apparatus and the like.

6 One of the principal objects is to provide novel means of a simple and effective character, whereby two sheet moving means or devices can have different timed relations, while operating at predetermined speeds.

1 Another and important object is to provide novel means whereby one instrument, as

for example, the first feeder of a duplex machine, can be thrown out of operation, while the remaining mechanism continues, in order that the sheets already in the apparatus will pass through the same.

In the accompanying drawings 2-- Figure 1 is a diagrammatic plan view of the lay-out of an L ruling machine, showing the location and general arrangement of the novel mechanism.

Figure 2 is a detail side elevation on an eniargedscale, looking in the direction of the arrow A of Figure 1,

Figure 3 is a detail cross sectional view tail-ten on the line 3-3 of Figure 2,

Figure 4 is a sectional view on the line -'l4 of Figure 3,

Figure 5 is a sectional view on the line 5-5 of Figure 3,

Figure 6 is an inner face view of the head on the driven shaft section,

Figure 7 is a similar view of the head on the driving shaft section.

Figure 8 is a detail longitudinal sectional view through the connection between the driving shaft section and the cam sleeve,

Figures 9 and 10 are inner face views of the two connecting heads of the driving shaft section and cam sleeve,

Figure 11 is a sectional view on the line 11-11 of Figure 5,

Figure 12 is a sectional view on the line 12-12 of Figure 11,

Figure 13 is a cross sectional'view taken on the line 1313 of Figure 1, and on an en larged scale,

Figure 14 is a plan view of the structure shown in Figure 13.

Figure 15 is a longitudinal sectional view through one of the suction rollers,

Figure 16 is a sectional view on the line 16-16 of Figure 15,

1926. Serial No. 100,689.

Figure 17 is a detail sectional View of the controlling valve for the first feed roller.

The invention is disclosed in the form of an L ruling machine, in which sheets are first moved under ruling pens in one direction, and are then caused to move in a right angular direction beneath a second set of ruling pens to rule lines thereon at right angles to the first lines. The lay-out of such a machine is disclosed in Figure 1, wherein feeder is shown diagrammatically at 17. This delivers sheets to the first ruling machine 18, and from the ruling machine 18, the sheets are delivered to a turner or direction-changing device, indicated at 19. From this apparatus 19 they are fed to a second ruling machine 20. Inasmuch as the feeder 17 and ruling

machines

18 and 20 may be of well-known character, it is believed to be unnecessary to show and describe them in detail, as their make-up is well-known to those skilled in the art.

The feeder 17 preferably employs a rotary suction feeding roller 21, such as that disclosed in my prior Patent, No. 1,494,303, dated May 13, 1924. An embodiment of the same is illustrated in Figures 15 and 16, wherein a driven shaft 22 has adjustably mounted thereon the roller 21. This roller is provided with rows of peripheral suction ports 23 in communication with bores 24 that in turn communicate with suction passageways 25, the bores and passageways opening through one end of the roller. The roller is journaled in a head 26, having a suction port 27, with which the inner ends of the passageways 25 successively aline. The port 27 is in communication with a suction pipe 28 leading to asuitable suction or exhaust pump 29, driven by any suitable means. In this pipe 28, and preferably at the sheet turning mechanism 19, is located a controlling valve casing 30. As shown in Figure 17, tlii valve casing contains a plunger valve 31, having a reduced portion 32 that is movable to a position to allow communication between the pump 29 and the suction roller 21, and is movable to a different position to cut off communication between the said pump 29 and roller 21 and open a vent 33 to the pump.

.The sheets, after passing the ruling machine 18, are carried by endless tapes 34 into the sheet turning mechanism 19, and are fed therefrom to the second ruling machine 20 by a suction roller 35. This suction roller is preferably of the same construction the suction roller 21 above described. The suc tion roller 35 has an exhaust conduit 36 leading to a valve casing: 37, and from said 'alve. using a conduit 38 leads to a suction or exhaust pump 39.

Extending across the path oi the sheets carried by the tapes 34. is a stop bar 40, and as shown in Figures ii} and l-l. secured by brackets it to this bar, is a suction pipe 42. having depcmling nozzles 43 with open lower ends, these norzlcs overlying lhe tapes l-l in advance ot the atop bar. The nozzles pre'le ably have forwardly evtendiiu; guide lingers at with upturned tree terminals if that direct the sheets carried by the tapes 5H: beneath the nozzles and against the stop har ell). Referring now to Figure t, the valve ltl5lll 1 3'? contains a plunger valve in having a reduced portion -15? that. i movable into and out of position to ati'ord conn munication between the suction conduit sections as and 38 and thus connect the teed rollerj'lo to the pump 30. The valve 46 also has a free end provided with a passageway 1118 that opem throne-h ite lower end. and has a lateral port 49 that is movable into communieation with the conduit 38 leading: to the pump 39 when the reduced portion el moves npvmrdly to cut ott communication between the

conduit section

36 and 38. This lower end oi the valve is connected by a pipe 50 with the suction pipe 4-2.

Journaled on the rear end. of the machine is a main drive sl'iatti section 51. operated by any suitable means. and having lived there to between its ends a collar or head Another head 53 is lined to the inner end of the shalt section 51. Slidabl and rotatably mounted on the drive shaft section 51, between the heads 5:; and an. is a alcove fi l, one end of which may be knurled. ae shown at torming a handpiece. so that it may be readily moved. The other end of the sleeve rarries a cam 56, and this earn is provided with a pin 57. adapted to engage in any of a series of "sockets 5S lor1ne l. in the head. or collar 52. The cam is normally held locked to the collar by means of a coiled spring 43$) interposed between the knurled end of he sleeve F iaud the head as lifted to the shaft section at. Riding on the cam on, aa illustrated in Figure l. in the bearing; member (-30 oi a rocker arm 61. and this rocker a 111 has a link connection (:12 with the valve ll). Obviouely. therefore. upon each rotation of the driving; shaft section T l, the valve 31 is moved to opened. and then to closed position.

Alined with the inner end of the driving shalt section 51 is a driven. shaft section 63. *which as shown in Figure ll. has tixcd to it ahead 6% provided with a peripheral groove 65. The head 53 of the driving shalt section 51 has a longitudinally disposed driving pin (it; adapted to engage a driven pin ti'i' slidably mounted in the head (3-.1; and extending across the groove (55. Thin pin is norn'ially held in its projected position or in thepath ot' the pin on by a leaf spring lit). The pin (ST is provided with a notch (l9. one lace (it which is inclined. as shown at'lt) in Figure 12. it rock shall Tl. located alongside the shalt sections :31 and ti l (see Fig. 3) is provided with a cranl: arm 73 carrying a croes head '72 at its free end. and this head has a tapered -hoe 7*! adapted to enter the groove (59 oil the pin (3?. as shown in Figure 1:2. so as to he engaged by the inclined taco it) of the pin. (,iOllStttllt-Ellll) the rotation of the head will cause the pin to be withdrawn out ot the. path of the driving pin tilt. thus disconnecting the sha'tt 33 :lroin the shalt 51. The head Til. when in a position to have the shoe Tl engage the pin (37, is also in the path of pins projecting troni the periphcry of the head (ii. and these pins therciorc will abut against the head 73 and positively stop the rotati n oi the driven shatt f ection (33.

This driven -=hatt section carries a am To. on which rides the bearing element 77 ot' a rockc arm TH. and this arm has a link connection T!) with the valve 31 that con trols communication between the pump it and the "feeder suction roller The rocker arm To, as shown more particularly in Figure :3, also serves to opcra" a sheet counter. for example a register illustrated at St and the operating shall 81 thereof has a crank arin connection 82 with the rocker arm '78. The driven shai't section 8? turthermore is preteral'ily provided with an eccentric til} operating a pitn'ian hat. and this pitman actuatcs a swinging pawl 85 operating on a ratchet wheel 86. The ratchet wheel carries a sprocket wheel 87, having an endless sprocket chain 88, and this; sprocket chain is provided with one or more lugs 89 adapted to swing an arm 90. and 'lor example. operate a circuit closer Ell oi the alarm or other device. The operation ot' all these inetrnin ntalitics is obvionely controlled by the clutch actuation shoe Tlthat moves the driven pin (3T out oi engagement with the driving pin (ill or permits it. to have uch ei'i{. ;a renient.

The operation of the apparatus ie aa :tollowe. Aeeunning that all the parts are in operation. it will be evident that auction ii: periodically created in the suction. roller Lil, and thus in a manner readily ui'ideratooi'l. said suction roller will deliver sheets ten ceesively to the tirst ruling machine ltl. Paesing trom this ruling; machine. these sheets will be succesaively carried bythe tapes 3i against the stop bar ll), and inasmuch as suction is periodically created in till 1 iii liZtl the second roller 0-), the sheets at right angles from their first direction of movement and send them to the second ruling machine 20.

Inasmuch as the controlling valves for the first suction roller 21 and second suction roller are actuated by the common driving shaft 51, each of the cams that operatethe valves will be given one movement upon each rotation of the shaft. Their timed relations, however, can be altered. Thus, by sliding the sleeve 54, the pin 57 of the cam 56 can be disengaged from one of the sockets 58, and engaged in another socket. Thus the cam can be fixed in different positions about the shaft. On the other hand the cam 7 6, which operates the valve 31 controlling the first machine, will always be in one fixed position with respect to the driving shaft 51, since there is but one driving pin 66, and one driven pin 67. The two cams therefore, hough operating at the same speed, can have their relative positions altered, and the timing of the operation of the two suction rolls correspondingly altered. If, however, it is desired to stop the initial feed of the apparatus, itis only necessary to cause the crank arm 72 to swing downwardly, so that the shoe 74E will enter the annular groove 65, whereupon as the parts continue to operate, the pin, 69 will be withdrawn from the path of the pin 66, and the driven shaft 63 stopped. This obviously stops the operation of the valve 31, and the arrangement is such that the valve is stopped in its closed position, with the pump 29 out of commui'iication with the suction roller 21. The initial feed is consequently stopped, but the remainder of the apparatus continues in operation, so that the sheets already fed from the machine, continue on through. It will also be noted that when the driven shaft section 63 is stopped, the counting or registering mechanism is also stopped, so that there is no danger of the erroneous counting of sheets when the initial feed of sheets is stopped.

From the foregoing, itis thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art, without further description, and it will be understood that various changes in the size, shape, pro-portion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

What I claim is:

1. In apparatus of the character set forth, the combination with two instrumentalities forsuccessively operating on sheets, of a drive shaft, cams driven by the shaft for periodically operating said instrumentalities, and means for connecting and disconnecting this roller will start.

the cam that operates the first instrumentality.

2. In apparatus of the character set forth, the combination with two instrumentalities for successively operating on sheets, of a drive shaft, cams for periodically operating said inst-rumentalities, one being driven by the shaft, aclutch between the other cam and the shaft, and means for operating the clutch to cause the latter to be connected to and dis connected from the shaft.

3. In apparatus of the character set forth, the combination with two instrumentalities for successively operating on sheets, of a drive shaft, cams for periodically operating raid instrun'ientalities, means for adjustably connecting one of the cams at dilferent positions to the shaft, a clutch between the other cam and the shaft for connecting it thereto in a fixed relation to the shaft, and means for operating the clutch.

4:. In apparatus of the character set forth, the combination with mechanisms for opcrating on sheets, of feeding means for delivering the sheets successively to the mech anisms, operating means for the feeding means including a shaft, and actuating devices for the respective feeding means driven thereby, and means for connecting and disconnecting the actuating device of the first feeder while permitting that of the second feeder to continue in operation.

5. In apparatus of the character set forth, the combination with mechanisms for operating on sheets, of feeding means for delivering the sheets successively to the mechanisms, operating means for the feeding means including a shaft, an actuating device for one feeder rotatable with respect to the shaft and having means for fixing it thereto in different positions about the shaft, a second actuating device for the second feeder, and means for connecting and disconnecting the actuating device of the first feeder while permitting that of the second feeder to continue in operation.

6. In apparatus of the character set forth, the combination with mechanisms for operating on sheets, of feeding means for delivering the sheets successively to the mechanisms, operating means for the feeding means including a shaft, a sleeve rotatably mounted on the shaft, an actuating device carried by the sleeve, means for fixing the sleeve and device to the shaft in difierent positions about the latter, a second actuating device for the other feeder, and a clutch for connecting the second device to and disconnecting it from the shaft.

7. In apparatus of the character setforth, the combination with mechanisms for operating on sheets, of feeding means for delivering the sheets successively to the mechanisms, operating-means for the feeding means including a shaft, a sleeve rotatably mounted on the shaft, an actuating device carried by the sleeve, means for fixing the sleeve and device to the shaft in diti'erent relations about the latter, a second actuating device for the other feeder, and a clutch tor connecting: the second device to the shatt in a tilted 1ircdetermined relation and disconnecting it from the shaft to permit; the latter and the first device to operate iiu'lependentlv ol" the second.

5%. la apparatus oi the character set torth. the combination with mechanism 'lor operating; successively on sheets, of a Feeder tor l lirering sheets siu'cci'isivelv to the mecnaziism. sheet wanting: means. a common operating clement For the feeder and the count ingmechanism. and means for stopping the 'leeder and counting means to stop the teed oi? sheets to the mechanism While permitting the latter to continue operation on the sheets alread led and counted.

9. in apparatus ot the character set forth, the combination with mechanism tor operatng successivel v on sheets, of a feeder for deliveriiug sheets successively to the mecha' nism, sheet counting means, a drive shalt, means tor operating the teeder and countinn' means including a cam, and means for "hitching the cam to and unclutching it from the shaft to stop the feeder and counting mechanism in order to stop the feed of the sheets to the mechanism while permitting the latter to continue operation on the sheets alread ted and counted.

10. In apparatus of the character set forth, the combination with two mechanisms tor operating: on sheets. of a teeder for delivering; sheets to the first mechanism, a second feeder tor translerrilur sheets from the first mechanism to the second mechanism. a counting mechanism operating with the first 'tktdtl! and means tor stopping the operation of the first teeder and counting mechanism. \vhilc permitting the second feeder to operate and transfer to the second mechanism the sheets already counted and fed to the first mechanism.

ll. In apparatus of the character set Forth. the combination with tWO mechanisms tor successively operating on sheets. of a i'cedcr for delivering sheets successively to the first mechanism, a feeder or transferring sheets :trom the first mechanism to the second mechanism. common driver for both 'l'eeders. an actuating); device for each feeder driven by the driver, and means for clutchinn and unelutching the driver and driving element ot the first feeder, While permitting the second to continue operation to transfer to the second device the sheets already ted to the first device by the first feeder.

' 12. In apparatus of the character set forth, the combination with two mechanisms tor successively operating on sheets, of a suction oaaeso roller tor delivering" sheets successively to the first mechanism, a second suction roller tlor trans'li'erring sheets from the first mechanism to the second mechanisn'l, a suction controlling valve tor each suction roller, operating: means tor the respective valves, including an actuating device for each, and means tor -itopping one of the actuating devices while permitting: the other to continue in operation.

1 in apparatus of the character set :l'orth, the combination with. two mechanisn'ls for successively operating on sheets, ol a suction roller t'or delivering sheets successively to the first mechanism, a second suction roller for transferring: sheets from the first mechanism to the second mechanism, a suction controlling valve tor each suction roller, operating means for the respective valves, including: an actuating device for each,.and means tor stopping the actuating device of the con trolling: valve tor the first suction roller while permitting the actuating device for the transfer roller to continue in operation.

l-l. In apparatus U1li-tl19 character set torth, the combination with two mechanisms tor successively operating on sheets, of a first suction roller for feeding sheets to the first mechanism. a second suction roller tor transferring sheets from the first to the second mechanism, a suction controlling valve for each roller, av drive shaft, cams for operating the valves driven by the shaft, and means for fixing the cams to the shajlit in difiterent relative positions. about the sai'ne to change the relation otoperat-ion ot the valves.

15. in apparatus of the character set forth, the combination with two mechanisms tor siurcessivelv operating on; sheets, ot a first suction roller tor feeding sheets to the first mechanisn'i, a second suction roller lortrans fer-ring sheets from the first to the second mechanism, a suction controlling valve for each roller, a drive shatt, cams tor operating the alves driven by the shaft, one oi. said cams being slidahly and rotatably mounted on the shaft, andv interlocking;- devices carried by the cam and shafttor fixing: the latterin ditterentpositions thereto and around the same and in different relations to the other cam to change the relation of the operation of the valves.

16. In apparatus oi the character setforth,

the (Oll'llililltltlOIlWVltll tvvo mechanisms for v successively operating on sheets, of a first suction roller for feeding sheets to the first mechanism, a second suctionroller for transferring sheets from the first to the second mechanism, a suction controlling alive for each roller. a drive shaft, cams for operao ing the valves driven by the shaft, anda clutch for connecting: and disconnecting one of the cams and the shaft.

17. In apparatusofthecharacter set forth,

the combination with two mecl'ianisms for successively ope 'ating on sheets, of a first suction roller forfeeding sheets to the first mechanism, a second suction roller for transferring sheets from the first to the second mechanism, a suction controlling valve for each roller, a drive shaft, cams for operating the valves driven by the shaft, and a clutch for connecting and disconnecting the cam that operates the controlling valve for the first suction roller.

18. In apparatus of the character set forth, the combination with two mechanisms for successively operating on sheets, of a first suction roller for feeding sheets to the first mechanism, a second suction roller for transferring sheets from the first to the sec ond mechanism, a suction controlling valve for each roller, a drive shaft, cams for operating the valves driven by the shaft, a clutch for connecting and disconnecting the cam that operates the controlling valve for the first suction roller, and means for securing the cam for the valve of the second suction roller at different places about the shaft to vary the relation of operations of the two valves.

19. In apparatus of the character set forth, the combination with two mechanisms for successively operating on sheets, of a first suction roller for feeding sheets to the first mechanism, a second suction roller for transferring sheets from the first to the second mechanism, a suction controlling valve for each roller, a driving shaft having a head, a sleeve rotatable and slidable on the driving shaft and having a cam for actuating the valve of the second suction roller, said sleeve and head having interlocking means, for holding the sleeve, and cam fixed to the shaft in different positions about the same, a cam for actuating the valve of the first suction roller, and means for detachably clutching the second cam to the shaft always in the same relation thereto.

20. In apparatus of the character set forth, the combination with a driving shaft, of an actuating cam slidably and rotatably mounted on the driving shaft, said shaft and cam having means that detachably interlock to hold the cam on the shaft in different adjusted relations about the same, and means for maintaining the means in interlocked relation.

21. In apparatus of the character set forth, the combination with a driving shaft, of a sleeve slidably and rotatably mounted on the driving shaft and having a cam fixed thereto, said shaft having a head and said sleeve and cam having means that detachably interlock with the head to hold the cam on the shaft in different adjusted relations about the same, and a spring on the shaft bearing against the sleeve and maintaining the means in interlocked relation.

22. In apparatus of the character set forth, the combination with a rotatable driving member, of a rotatable driven member, an actuating cam carried by the driven member, abutting elements carried by the two members for transmitting motion from one to the other, one of said elements being movable on its member into and out of the path of the other, and means movable into and out of the path of the movable element to cause its retraction from the path of the other element.

23. In apparatus of the character set forth, the combination with a rotatable driving member, of a rotatable driven member, an actuating cam carried by the driven member, abutting elements carried by the two members for transmitting motion from one to the other, one of said elements being movable on its member into and out of the path of the other, and a, shoe movable into and out of the path of the movable element to cause its retraction from the path of the other element.

24:. In apparatus of the character set forth, the combination with a rotatable driving member, of a rotatable driven member, an actuating cam carried by the driven member, abutting elements carried by the two members for transmitting motion from one to the other, one of said elements being movable on its member into and out of the path of the other, a shoe movable into and out of the path of the movable element to cause its retraction from the path of the other element, and a stop carried by the driven member and movable into engagement with the shoe to stop the driven member when the elements are disengaged.

25. In apparatus of the character set forth, the combination with a driving shaft, of a driven shaft alined therewith, an actuating cam on the driven shaft, an abutment on one shaft, an abutment slidably mounted on the other shaft and movable into and out. of the path of the first abutment to cause the driven shaft to be driven by the driving shaft or be freed therefrom, a swinging arm having a shoe movable into the path of the sliding abutment to slide the same out of the path of the first abutment, and a stop on the driven shaft that engages the shoe to stop the driven shaft and cam when said shoe is engaged with the sliding abutment.

26. In apparatus of the character set forth, the combination with a ruling machine, of a suction roller for delivering sheets thereto, a second ruling machine, a suction roller for transferring sheets from the first to the second ruling machine, a suction controlling valve for each suction roller, and means for operating the valves in predetermined time-d relation.

27. In apparatus of the character set forth, the combination with a ruling maill) chine, ol a suction roller for delivering sheets thereto, a second ruling machine, a suction roller tor transferring sheets 'l'lOlU the first to the second ruling machine, a suc- 29.111 apparatus of the character set forth, the combination with a ruling machine, ot a suction roller for delivering sheets thereto, a second ruling machine. a suction roller for transferring sheets from the first to the second ruling machine, arsuction controlling valve for each stlctioirroller, a driving shaft, valve-operating 6211118601]- ncctcd to the shaft and operating at the same speed, and means for relatively adj ustingthe cams on the shaft to vary the relation of the operation of the valves.

St). in apparatus of the character forth, the combination with a ruling 1nachine. of a suction roller for delivering sheets thereto, a second ruling machine, a suction roller for transferring sheets from the first to the second ruling machine, a suction controlling valve for each suction roller, a driving shaft, valve-operating cains operated by the shaft, and'nieans for connecting and disconnecting the shaft. and one of the cams vvhilc the other continued in operation.

31. In apparatus oi the character set forth, the combination with a ruling niachlnc, ot' a suction roller for delivering sheets thereto, a second ruling machine, a suction roller for transferring sheets from the first to the second ruling machine, a suction controlling valve for each suction roller, a driving shai't, valve-operating canis operated by the shaft, and means for connecting and disconnecting the shaft and the cunt that operates the controlling valve of the first suction roller.

32. In apparatus ol': the character set forth, the combination with a ruling 1nachine, ot a suction roller for delivering sheets thereto, a second ruling machine, a suction roller for translcrring sheets from the first to the second ruling machine, a suction controlling valve for each suction roller, a driving shaft, a cam rotatahlv niountedcn the shaft and operating the valve of the second suction roller, means for fixing the can to the shaft at dilierent positions about the same, a -a1n for operating the first suction roller, and clutch means for detachably connecting the second cain to the driving shaft in a predetermined lined relation.

In apparatus oi the character set forth, the combination with a ruling machine, of a suction roller for delivering sheets thereto, a second ruling machine, a suction roller for transferring sheets from the first to the second ruling machine, a suction controlling valve for each suction roller, a driving shaft, a cam slidahlv and rotatahly mounted on the shaft and Optl'tltlllg" the valve of the second suction roller, detachable interfitting means on the shaftand cam for fixing the cum to the shaft at ditlerent positions about the same, a driven shaft, a carn on the driven shaft for operating the first suction roller, clutch means for connecting and disconnecting the driving and driven shafts, and means for stopping the driven shatt when the driving shaft is at a standstill.

In testimony whereof, I aflix my signature.

ALBERT B R OA 1) MEYER.