US2107647A - Printing press - Google Patents

Description

L. Q. PRESBY PRINTING PRESS Feb. 8, 1938.

Filed Oct. 31, 1955 6 Sheets-Sheet 1 Even/Z02 1367 0 ygl z esy,

Feb. 8, 1938.

L. Q. PRESBY 2,107,647

PRINTING PRESS Filed Oct. 31, 1955 6 Sheets-Sheet' 3 Inve 72 2 0 a": Leroy Q. PPes5g, by 7M Wu IMAM Feb. 8, 1938 L. Q. PRESBY PRINTING PRESS 6 Sheets-Sheet 4 I! IHIIIII L. Q. PRESBY PRINTING PRESS Feb. 8, 1938.

Filed Oct. 51, 1935 6 Sheets-Sheet 5 InveW/Zor: rLr oy QLPres 27g, 33 'hw Ll wf iduw M7 V cflfi ys.

Patented Feb. 8, 1938 UNITED STATES PATENT OFFIQE PRINTKNG PRESS Leroy Q. Presby,

Melrose, Mass,

assignor to Application October 31, 1935, Serial No. 47,597

16 Claims.

My invention, which relates to printing presses, will be best understood from the following description when read in the light of the accompanying drawings of an embodiment of the invention, the scope of which latter will be more particularly pointed out in the appended claims.

In the drawings:-

Figure 1 is a side elevation of a machine constructed according to the invention;

Fig. 2 is a side elevation of the printing couple, with associated parts, shown at the right hand end of Fig. 1, parts being in section;

Fig. 3 is a side elevation according to Fig. 2 as viewed from the opposite side of the machine, parts being in section;

Fig. 4 is an end elevation of the printing couple, with associated parts, as viewed from the right of Fig. 5 is a section on the line 5-5 of Fig. l on an enlarged scale;

Fig. 6 is a plan, on an enlarged scale, of the strip guiding and tensioning means of Fig. 1;

Fig. 7 is a section on the line 'l'! of Fig. 6;

Fig. 8 is an enlarged fragment of the frame showing a detail of the bearing for the shaft of the print roll;

Fig. 9 is a section on the line 99 of Fig. 5, with parts omitted;

Fig. 10 is a section on the line il3lii of Fig. 5, with parts omitted;

Fig. 11 is a section on the line Iiil of Fig. 2, with parts omitted;

Fig. 12 is a section on the line [2-42 of Fig. 3, with parts omitted and parts moved to a different operative position;

Fig. 13 is a section on the line !3i3 of Fig. 5, with parts omitted;

Fig. 1.4 is a section on the line i i-44 of Fig. 2, with parts omitted;

Fig. 15 is an elevation, on an enlarged scale, of the clutch release mechanism of Fig. l; and

Fig. 16 is an end elevation of the mechanism of Fig. 15.

Referring to the drawings, the press illustrated comprises a pair of standards I at the upper ends of which on opposite sides are mounted the spaced, longitudinally extending channel-irons 3. Supported on. these channel-irons above the standards are printing couples having the print rolls 5 and presser rolls 1 for operating upon a narrow strip 9 of sheet material which is drawn from a reel l I, and, after being printed and dried, wound. upon a reel l3.

As illustrated, the print rolls and presser rolls are carried by frames comprising the side members i5 and fl (Figs. 4 and 5). As the construc tion of each frame and printing couple is similar only one will be described.

As shown, the print roll 5 is located between the side members of the frame and is carried by a shaft H9. The bearings for this shaft comprise lower bearing blocks 2! inserted in the side members of the frame, and upper bearing blocks 23, the latter being hingedly connected to said side members at 25, as best illustrated in Figs. 2 and 8. The upper half 23 of the bearing is shown as provided with a boss 2'1 formed with a bore 29 in which is reciprocally mounted a plunger 3i, the latter having an enlarged head 33 fitting the bore and being formed with a tapered end 35 which is received in a correspondingly shaped recess in the adjacent side member of the frame. A compression spring 37, positioned in the bore 29 and surrounding the plunger 3|, acts on the head 33 normally to hold its tapered end 35 in this recess to lock together the halves of the bearing. At its opposite end the plunger projects from the boss 21' and is provided with a head 39 which may be gripped to retract the plunger against the pressure of the spring and withdraw the tapered end 35 from its recess. This enables the upper half of the bearing to be swung into its dotted line posi tion shown in Fig. 8, in which position it rests on the horizontal portion 4| of the frame.

The above described bearing construction allows the print roll to be readily removed from the frame, and, when the upper half of the bearing is swung into its dotted line position, affords a preliminary rest for the print roll in removing it from or inserting it in the frame, because when in its dotted line position the upper bearing half has its bearing surface facing upward, allowing the shaft !9 of the print roll to rest in it, as shown in dotted lines in Fig. 8.

As illustrated, for adjusting the print roll 5 longitudinally thereof between the guide members of the frame, a reduced endportion of the shaft 19 is provided with a pair of collars 43 and 45 (Fig. 4), the latter of which is formed integrally with a worm 47 forming part of the mechanism hereinafter described for operating the doctor knife 48 (Figs. 5 and 13), sufiicient space 49 (Fig. 4) being left between the bearing for the shaft and the worm to permit this adjustment. An arm 5| is pivotally mounted at its lower end on a pin 53 (Figs. 3 and 4) supported in lugs 55 carried by the adjacent side member iii of the frame. The upper end of this arm is bifurcated, as indicated at 51 (Fig. 3), the arms of the bifurcations carrying pins 59 which fit between the cellars 43 and 45. Extending transversely through the arm 5I, in screw-threaded relation .aerewith, is a screw 5!. This screw at its left hand end, as viewed in Fig. 4, bears against the outer face of a lug 53 carried by the side member I 5 of the frame. The arm BI is urged to the left, viewed in Fig. 4, by a spring 65 attached at one end to the arm and at its opposite end to the side member I5 of the frame. This construction provides, in an obvious manner, that by rotating the screw BI by means of its knurled head 61, the shaft I9 and the print r011 carried by it may be adjusted lengthwise.

The two printing couples are driven by a shaft 59 extending longitudinally of the bed of the machine and mounted in bearings II on the frames of the several printing couples. This shaft is provided with a belt pulley I3 (Fig. 2) about which passes a belt 75 driven by a motor II. On the shaft 69, at each printing couple, is splined a longitudinally shiftable worm I9 held in adjusted position lengthwise of the'shaft by a housing 8i (Figs. 2 and 11). The ends 83 of this housing abut with the ends of the worm, a ball thrust bearing 85 for taking up the thrust of the worm on the housing being interposed between one end of the worm and the adjacent end wall of the housing. The housing may be shifted longitudinally of the shaft, for adjusting the worm, by means of a screw 3-1, which screw is in screwthreaded engagement with the downwardly projecting lug e9 formed integrally with the housing, the screw being rotatably supported in lugs fit formed integrally with theadjacent side member I? of the printing couple frame. .For conveniently rotating the screw it is provided at its end with a handle member 93.

Meshing with the worm I9 is a worm wheel 55, which operatively is formed integrally with a spur gear 9? (Figs. 2-and 11) meshing with a spur gear 99 fixedly carried by the shaft- I9 of the print roll. This construction provides, that when the worm is shifted longitudinally of the shaft, by rotation of the screw 81, the print roll will be rotated so as to adjust it ahg-ularly relative to the shaft 69.

The presser roll I is carried by a shaft IUI which is mounted on the ends of arms I03 pivotally connected to the side members I5 and I? of the frame at I95. As illustrated, these arms are connected by a bar III'I formed integrally therewith extending across and above the top of the frame. Also extending across the top-of the frame below thebar I! is a bar I09 integrally formed with the side members of the frame. The bar I0! is perforated, as indicated at HI (Figs. and 9), and through this perforation extends a vertical rod H3 which is of less diameter than the perforationand is rigidly secured at its lower end to the bar- I09. This rod its upper end is screw-threaded and carries a nut I I5 serving as the upper abutment for a compression spring N1, the lower abutment for which is afforded by a collar I I9 siidably mounted on the rod. Pivoted to this collar at I ZI are the upper ends of links I23 which at their lower ends are pivoted at I25 to the upper ends of links I21, the latter at their lower ends being pivoted at I29 to spaced. lugs I3I formed integrally with the upper side of the bar I03.

It will be observed, that by the construction just described, when the partsare in the position shown by the drawings, the spring I I1 is effective to press the .arm I03 downward to holdv the presser roll yieldingly in engagement with the r print roll, or yieldingly in engagement with the sheet which passes between the two rolls.

as shown, the right hand linkI2'I, as viewed in Fig. 5, is extended upward to form an arm I53 to which is pivotally connected a bar I35, the bar extending from the arm I33 associated with one printing couple to the corresponding arm associated with the other printing couple. The bar I35, as shown, is provided with convenient handle means I3? which may be gripped by the operator for reciprocating the bar. As shown (Figs. 2 and 5) the two links I2! are connected by a bar its having at opposite ends arms I4I integrally connected with the links. By moving the bar I35 to the left, as viewed in Fig. 2, the links IE? will be swung about their pivots I29 which will move the collar IIS downward beyond the short limit of expansion of the spring II! to render the spring inoperative to press the bar I51 carrying the presser roll downward. struction described, it will. be .observedforms a toggle comprising the links I23 and links I27, and moving the toggle beyond its dead center position, that is to say, the position in which the pivotal connections IZI, I25, and. alignment, the spring will automatically move the collar H9 downward to the limit of expansion of the spring. As will. be clear from Fig, 2, the bar 39, which connects the two links I2'l,

is positioned sufliciently far from the rod II3 to 5;

enable the presser roll T to be moved upward sufficiently to permit the print roll to be removed from its bearings, that is to say, it is permitted to move upward a distance of at least about the radius of the print roll. I23 are integrally connected by a bar I43 which carries a set screw I45 the end of which is adapted to contact with the rod H3. This set screw is adjusted to causeits end to contact with the rod when the pivotal connections IZI, I25, and I2?! mounted in a hollow boss I49 formed integrally with the side members of the housing. Upon release of the toggle above described, the spring I5I, which acts on the plunger I4! and is of lesser strength than the stout spring II'i, is effective to raise the presser roll I out of cooperation with the print roll 5.

For guiding the sheet, each printing couple has associated with it a guide (best shown in Figs. 4, 9, and 14). This guide comprises a flat bar I 53 having upwardly projecting end portions I55, which latter are slotted at I52 and secured to the presser roll supporting arms I 53 by screws I59 passing through the slots so that the bar I may be adjusted vertically. The sheet rests upon the upper surface of the bar I53. Slidably supported in the upwardly extending portions I55 of the guide is a rod I5I,'to which latter may be adjustably secured. members I 53 which loosely engage with the opposite edges of the sheet. These members I63 are recessed at I65 (Fig. 9) so as slidably to fit the bar I53. At their upper portions they are split, as indicated at Ifii, and through the split portions pass screws I59 which serve ,to clamp the members to the rod in adjusted position longitudinally thereof. For moving the two members simultaneously longitudinally of the bar I53 to secure a. fine adjust- In fact, the mm n I29 are in As shown, the two links ;3.

ment, the rod I6! at one end is screw-threaded into a nut I1I (Fig. 14) which is rotatably mounted in one of the upwardly extending members I55, this nut having a knurled head I13 so that it may be conveniently rotated.

The worm 41 for operating the doctor knife 48 meshes with a worm wheel I15 (Figs. 3, 4, and 10), which worm wheel is rotatably mounted on a pin I11 carried by the lug 63 on the side member I5 of the frame. The worm wheel is provided with a hub, which at its end is provided with an eccentric pin I19 on which is mounted a roller 58L As shown, the roller is fitted into a slot I33 formed in the arm I85 and extending longitudinally thereof, this arm I85 at its lower end being mounted for oscillation on the pin 53 hereinbefore referred to. At its upper end the arm I85 carries" a projecting pin I81 which, as best illustrated in Fig. 5, fits between a pair of collars I89 on and fixed to a reciprocating shaft liii which carries the doctor knife (Figs. 5 and 13). Rotation of the worm wheel E15, therefore, causes oscillation of the arm I85 about its pivot afforded by the pin 53, and this oscillation, through engagement of the pin I81 with the collars I89, reciprocates the shaft IQI, and therefore reciprocates the doctor knife. Rotation of the shaft is urged by means of weights I93, which are carried at the ends of arms I95 projecting radially from the shaft. By securing the arms I95 in different adjusted positions radially of the shaft, by means of the set screws I91 screw-threaded in the ends of the shaft and bearing against the rods I95 which project through holes in the shaft, the pressure of the doctor knife on the print roll may be varied.

As shown, the shaft I 9! is mounted on bearings I99 which are slidably mounted on guides 2IlI carried by the side members of the frame. Screws 253 screw-threaded into the frame, and having their inner ends swiveled to the bearings I 99, are effective for adjusting the bearings, and hence the shaft I9I and doctor knife, toward or away from the print roll.

The reel I3, as shown, is rotated by a belt 205 driven from a pulley 251 adapted to be clutched to the shaft 69. As illustrated (Fig. 15) this clutch is of a common type having friction disks 269, the latter being situated between the pulley 201 and the end disks 2H and 2I3, the latter of which end disks is fixed to rotate with the shaft 69, while the former, and the friction disks and pulley as well, are rotatably mounted on the shaft. By pressing the disk 2 toward the disk 253, by means'of the collar 2I5, slidably mounted on the shaft, and the interposed thrust bearing 2I1, the pulley 201 is caused to rotate with the shaft. When the collar 2E5 is moved to the left, as viewed in Fig. 15, the clutch thus formed will be thrown out, and the pulley will not rotate with the shaft.

As illustrated, for sliding the collar 2I5 along the shaft 69, the side member I1 of the frame of the left hand printing couple, as viewed in Fig. 1, is provided with a projecting bracket 2I9 (Fig. 15) carrying a laterally projecting pin 22I on which is pivotally mounted a bell crank lever having the arms 223 and 225, and also pivotally mounted thereon is an arm 221. As shown, the end portion of the arm 225 is slotted, as indicated at 229, and through this slot passes a screw 228 which rigidly attaches the arm 225 to the arm 221 so that the latter arm and the arm 223 in substance form a bell crank lever of adjustable angle. As illustrated in Fig. 16, the lower end of the arm 223 is bifurcated, and is secured to the collar 2I5 by pivot pins 230. The bracket 2I9, as shown, has an upwardly extending member 23I which serves as the lower abutment for a compression spring 233, the upper abutment for which is afforded by a nut 235 screw-threaded on the end of a rod 231, the lower end of the rod being pivotally attached to the arm 221 at 239. By this construction the spring 233 forces the collar 2I5 to the right, as viewed in Fig. 15, so as to hold the pulley 201 clutched to the shaft 69, the clutch pressure being regulated by adjusting the nut 235 longitudinally of the rod 231. Conveniently this pressure is such as to allow the pulley 201 to slip under normal operation so as to maintain under tension the strip being printed and to compensate for the increasing diameter of the roll of strip on the reel.

As shown, pivoted at 24I to the side member I1 of the printing couple frame adjacent the pulley 201 is a lever 243, the upper end of which is pivotally attached to the rod I35 operated to release the spring pressure on the presser rolls of the printing couples. The lower end of the lever 243 is formed to provide a cam surface 245, which is effective to engage with and depress the roller 241, mounted on a laterally projecting pin 249 on the end of the arm 221, when the bar I35 is moved to the left, as viewed in Fig.

15, and thus throw out the clutch for the pulley 201. Thus when the bar I35 is moved to the left, as viewed in Fig. 1, to relieve the spring pressure on the presser rolls, which will stop the feeding of the strip, the clutch for the pulley 201 is thrown out, and the reel 1, which winds be again presented to the drier, and finally passes over a roll 25I and is led to the winding reel I3.

Heretofore considerable difficulty has been ex-- perienced in properly tensioning and guiding narrow strips to winding reels. This problem has been satisfactorily solved by the guide illus- As illustrated, this trated in Figs. 1, 6, and 7. guide comprises a bar 253 having a laterally projecting, cylindrical pin 255 which is rotatably and adjustably received in a perforated boss 251 on the end of a supporting arm 259 carried by the bed of the machine. The set screw 2G5 serves to hold the pin 255 in its adjusted longitudinal and rotative positions. Laterally projecting from the bar 253 are a plurality of spaced cylindrical bars 26I which extend through perforations in a bar 253, this bar being adjustably slidable on the bars 26I and being secured in adjusted position by set screws 265. In operation the bars 253 are adjusted so that the sheet loosely fits between that bar and the bar 253. As

best shown by Fig. '1, the bars 23I are so positioned that the sheet contacts with those bars through a small arc, so as to exert friction on the sheet, which is done by making the middle bar of each group of three adjacent bars offset toward the sheet with relation to the two side bars of that group.

As shown, the drier comprises a funnel 261 provided with an air heater 269, preferably of the electric type, through the interstices of which the air entering the lower openingZ'Hcontrolled by the damper 213 is forced by the electric motor driven fan 215. 'I'helower pass of the strip, as illustrated, passes through openings 21'! in the walls of the funnel. The top of .the funnel is open so that heatedair rising from the funnel dries the upper passes of the strip. The width of the funnel transversely of the sheet is slightly greater than the width of the sheet so as to permit free passage of air past the lowerpass of the strip, and the strip is so guided as to have its printed side lowermost.

, For permitting ready removal of the presser roll shaft lill from its supporting arms I03, conveniently the latter are formed with large openingss219 (Fig. 12) into which enter the reduced end portions 28! (Figs. 4 and 12) of theshaft.

referably, the shaft is mountedv on the arms I 03 in ball-bearings 283, one of which is shown in Fig. 12 as removed from the arm. As will beobvious, by moving the bearing to the leftv from its position shown in Fig. 12, the outer periphery of thebearing will be received in the opening 219, while the reduced end of the shaft will enter the opening 285 of the bearing. When the bearing is thus inserted in the opening 219, it will abut with the shoulder 28-! on the shaft, which will preventit from moving farther toward the presser roll. For retaining the bearings in the openings 219, the arms I03 carry covers for the openings. As illustrated, these covers are in the form of flat plates 289 secured to the arms by removable screws 29!. If desired, one or both of the covers may be notched as at 293 (Fig. 3) for receiving the upper screw 29!. This enables the cover to be swung downward, about the lower'screw as a pivot, upon loosening the upper screw, into its position shown in Fig. 12, so as to expose the bearing and permit its removal from the arm As shown, the ink pan 295, into which the print roll dips, is carried on the end of a vertically positioned rod 291 (Fig. 4) slidably mounted in a perforation 298 formed in a horizontal bar 299, which bar is formed integrally with the side members. l5 and I! of the printing couple frame. Conveniently, the rod 297 is circular, and is prevented from rotating by a rod 398 secured to the pan and'extending through and slidably fitting a perforation in the bar 299. As shown, the rod 291 is formed on one side thereof with rack teeth 3! with which meshes a rack pinion 303, the latter being carried by a shaft 395 rotatably mounted at opposite end portions in the opposite side members l5 and I! of the frame. By rotating the shaft 395, by means of its handle knob 36'! at the side of the frame, the ink pan may be raised and lowered. As shown, for holding the ink pan in adjusted positions, the shaft 305 has fixed thereto a ratchet wheel 309 with'which meshes a releasable pawl 3| 1 (Fig. 3).

It will be understood that wide deviations may be made from the form of the invention herein described without departing from the spirit of the invention.

I claim:

1. In a device of the character described, a

print roll, a presser roll, a movable mounting for the latter for moving the presser roll into and out of cooperation with the print roll, and a work guide carried by said mounting.

2. In a device of the character described, a print roll, a presser roll, a movable mounting for the latter for moving the presser roll into and out of cooperation with the print roll, spring means for moving said mounting to holdsaid presser roll resiliently in cooperation with said print roll, a releasable abutment for said spring means, and a Work guide carried by said mounting.

3. In a device of the character described, a frame, print roll removablymounted on said frame, a presser roll cooperating with said print roll, a mounting for said presser roll movably carried by said frame whereby the presser roll may be moved away from said print roll to permit removal of the latter from the frame, and a work guide carried by said mounting.

4. In a device of the character described, a frame, a print roll reinovably mounted on said frame, a presser roll cooperating with said print roll, a mounting for said presser roll movably carried by said frame whereby the presser roll may be moved away from said print roll to permit removal of the latter from the frame, spring means acting on said mounting having a releasable abutment which when released is movable to permit such movement of said mounting, and a work guide carried by said mounting.

5. In a device of the character described, a frame, a print roll carried by saidframe, a presser roll cooperating with said print roll, bearings for said presser roll, a. swinging support mounted on said frame and carrying said bearings, means urging said support to swing said presser roll away from said print roll, and a releasable toggle mechanism operatively acting between said frame and swinging support for holding said presser roll in operative relation to said print roll.

6. In a device of the character described, a k

frame, a print roll carried by said frame, a presser roll cooperating with said print roll, bearings for said presser roll, a swinging support mounted on said frame and carrying said bearings, means urging said support to swing said presser roll away from said print roll, 'a spring for holding said presser roll in operative relation to said print roll against the effort of said means, an abutment for said spring, and a releasable toggle for said abutment.

7. In a device of the character described, a frame, a print roll carried by said frame, a presser roll cooperating with said print roll, bearings for said presser roll, a movable support mounted on said frame and carrying said bearings, means urgingsaid support to move said presser roll away from said print roll, and a releasable toggle mechanism operatively acting between said frame and movable support for holding said presser roll in operative relation to said print roll, said toggle mechanism when released permitting movement of said support a distance at least the radius of said print roll. a

8. In a device of the character described, a frame, hearings on said frameya print roll mounted on said bearings, afpresser roll cooperating with said print roll, a mounting carrying bearings for said presser roll, which mounting is movably mounted on said frame, a spring operatively acting on said mounting for holding said presser roll resiliently in cooperation with said print roll, and means forming a releasable abutment for said spring for permitting free movement of said mounting transversely of said print roll a distance of at least the radius of said print roll to permit removal of the latter from its bearings by motion transversely thereof.

9. In a device of the character described, a print roll, a presser roll, a mounting carrying bearings for said presser roll movable transversely of said print roll, a spring operatively acting on said mounting for holding said presser roll in resilient cooperation with said print roll, an abutment for said spring, and means forming a releasable toggle for supporting said abutment.

10. In a device of the character described, a print roll, a presser roll, a mounting carrying bearings for said presser roll movable transversely of said print roll, a spring operatively acting on said mounting for holding said presser roll in resilient cooperation with said print roll, means forming an abutment for said spring, and means fornnng a toggle support for said abutment for transmitting the effort of said spring to said mounting.

11. In a printing press, a plurality of driven instrumentalities for operating upon a web, one at least of which is a printing couple having a print roll and a presser roll between which the web passes and which feed the same, and another of which is driven by means including a clutch, spring means for yieldingly urging said rolls into cooperation, and a single operator con trolled means for rendering said spring means inoperative to interrupt feeding of the web and for throwing out said clutch for interrupting operation of the other instrum-entality.

12. In a printing press, a plurality of driven instrumentalities for operating upon a Web, one at least of which is a printing couple having a print roll and a presser roll between which the web passes and which feed the same, and another of which is driven by means including a clutch, a spring for yieldingly urging said rolls into cooperation, means for transmitting the effort of said spring comprising an abutment for said spring, a toggle supporting said abutment, and a single operator controlled means for breaking the toggle to interrupt feeding of the web and for throwing out said clutch for interrupting operation of the other instrumentality.

13. In a printing press, a printing couple comprising a print roll and a presser roll for operating upon a web and for feeding the same, spring means for urging said rolls resiliently into cooperation, a reeling mechanism for the web, driving means for said couple and reeling mechanism including a clutch for establishing and interrupting operation of the latter, and a single operator controlled means for rendering said spring means inoperative to interrupt feeding of the web and for throwing out said clutch for interrupting operation of said reeling mechanism.

14. In a printing press, a printing couple comprising a print roll and a presser roll for operating upon a web and for feeding the same, a spring for urging said presser roll toward said print roll, means for transmitting the effort of said spring to said presser roll comprising an abutment for said spring, a toggle supporting said abutment, a reeling mechanism for the web, means comprising a clutch for driving said reeling mechanism, and a single operator controlled means for breaking the toggle to interrupt feeding of the web and for throwing out said clutch for interrupting operation of said reeling mechanism.

15. In a printing press, a printing couple comprising a print roll and a presser roll for operating upon and feeding a web, means urging separation of said rolls, means for holding said rolls in cooperating relation against the effort of said means which urges them to separate, a reeling mechanism for the printed web, driving means for said reeling mechanism including a clutch, and a single operator controlled means for substantially simultaneously throwing out said clutch for interrupting operation of said reeling mechanism and rendering inoperative said means which holds said rolls in cooperating relation for interrupting feeding of the web.

16. In a printing press, a printing couple comprising a print roll and a presser roll for operating upon and feeding the web, means urging separation of said rolls, means comprising a toggle for holding said rolls in cooperating relation against the effort of said means which urges them to separate, a reeling mechanism for the printed web, driving means for said reeling mechanism including a clutch, and a single operator controlled means for substantially simultaneously throwing out said clutch for interrupting operation of said reeling mechanism and breaking said toggle for interrupting feeding of the web.

LEROY Q. PRESBY.

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