US872464A

US872464A - Cutting and feeding mechanism for printing-presses.

Info

Publication number: US872464A
Authority: US
Inventors: Ralph C Seymour
Original assignee: Individual
Current assignee: CB Cottrell and Sons Co
Priority date: 1905-12-30
Filing date: 1905-12-30
Publication date: 1907-12-03
Anticipated expiration: 1924-12-03

Description

PATENTED D1303, 1907.

y R. 0. SEYMOUR. CUTTING AND FEEDING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED 1030.30, 1905.

5 SEEETS-SHEET l.

mummmm I HHHIEII II II II I i ll II II PATENTED DEC. s, 1907.

I No. 872,464.

. R. GQSBYMOUR. I CUTTING AND FEEDING MECHANISM FOR'PRINTING PRESSES,

5 SHEETS-SHEET 3.

'APPLIGATION FILED DEO.30,1905.

al a

PATENTED DEC. 3; 1907.

R. U. SEYMOUR. CUTTING AND FEEDING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED DEG.30,1905

- Wzewraw m U M E S 0 R CUTTING AND FEEDING MECHANISM FOR PRINTING PRESS ES.

APPLICATION FILED DEO.30,1905.

5 SHEETS-SHEET 5.

mwwemh Mew UNITED STATES PATENT oEE ro RALPH o. sEYMonR, on NEW YORK, N; Y, ASSIGNOR-TO o. BLco'r'rnELna SONSGOMPANY;

OF NEW YORK, N. x, A CORPORATION 0E NEW JERSEY.

CUTTING AND FEEDING MECHANISM noErnmrrNerREssns: I

To all whom it may concern:

Be it known that I, RALPH O. SEYMOUR, a citizen ofthe UnitedStates, and resident of the borough of Manhattan, in the city and State of New York, have invented a new and useful Improvement in Cutting and Feeding Mechanism for Printing-Presses, of which the following is a specification.

My invention conslsts 1n improvements in cutting and feeding mechanism for printing presses and has for its object to provide cer- (3) I arrange the axis o the cutterv either ob lique to or at'right angles to the line of travel of the advancing web and the axis of the web carrier at right angles to the line of travel of the advancing web, the web carrier being either mounted eccentric to or concentric with the axis of the said cutter; (4) I preferably arrange the Web carrier on an axis eccentric to the axis of the cutter whereby the web carrier maybe brought into closer proximity to the impression cylinder of the printing mechanism at the timeof feeding the advance edge of the web thereto than the cutter blade, and (5) I drive the web carrier from the rotary cutter by a mechanism so arranged that the speed of the web carrier will be varied with respect to the speed of the out ter during one revolution thereof for permittin the web carrier to be driven at the same surface speed as the cutter at the time of cut and at a greater speed than the impression cylinder at the time the web carrier is feeding the advance edge of the web thereto.

. In the accompanying drawings, Figure 1 is a partial front view of one of a pair of rotary cutters which is arranged out of parallelism with the advancing web,.the web carrier shown in connection therewithbeing shown in parallelism with the advancing-web and eccentric to the axis of the said cutter, Fig. 2 is a top plan viewof the same, Fig. 3 is a detail longitudinal section through a stationary support and its adjacent parts at Specification of Letters Patent.

Application filed December 30-1905. Serial No. 293.924.

one 'end of the cutter and web carriers, Fig.

Patented mega-1907.

4 is a similar view through ,the stationary support and its adjacent parts at'the other end of the cutter and web carriers, a portion of the gearing for driving the rotary cutter being. shown therein, Fig. 5 is" a transverse section taken in the plane of the line AA of Fig.1, this view also illustrating a portion of the other cutter ofthe pair of cutters, the

parts -being'in the position'which they assume as the sheet is being cut from the web,

Fig. 6 is a partial transverse section taken in the plane of the line B''=B of Fig. *1, Fig. 7 is a section taken in the plane ofthe line AA of Fig. 1, showing the parts in the position which they assume when the cutter has been rotated a half revolution, Fig. 8 is a similar section showing a portion of the first impression cylinder of a printing mechanism, the parts beingin the position which vthey assi-.me when the web carrier is feeding the adv: nce edge of the web to the grippers on the first impression cylinder, Fig. 9 1s a partial front view of a rotary cutter which is arranged in arallelism with the advancing web, the web carrier shown in connection therewith being also arranged'in parallelism with the advancing web and mounted eccentric to the axis of the said cutter, Fig. 10 is a top plan view of the same, Fig. 11 is a transverse section taken in the plane of the line C0 of Fig. 9, this view also illustrating the cylinder which carries the cutting block. which coaots with the rotarycutter blade, the parts being in the position which they assume as the sheet is being cut from-the web, and Fig. 12 is a similar section in which thecutter is arranged in parallelism with the advancing web and the web carrier shown in connection therewith is also arranged in parallelism with the advancing web and mounted concentric with the axis of the said cutter. The first impression cylinder of the printing' mechanism is denoted "by 1 and it is shown as being provided with a set of grip"- shaft '7. The

blades

24, 25, of the pair -pers 2 which may be opened at the required v of rotary cutters are arranged to coact with fwhich meshes with the gear 27. The gear 28 is driven from a gear 32 fixed to rotate with the first impression cylinder 1 and connected by any suitable driving mechanism, not shown herein.

The axes of the cutters in the form shown in Figs. 1 to 8 inclusive, are arranged oblique to the line of travel of the web 3 and the cutter blades 24, are arranged out of parallelism with the axes of their carriers and-in lines which are spiral or oblique relatively to a line parallel with such axes so as to produce the required shearing cut on the web whereby the cut will be made at right angles to the web; This arrangement isthe well known Cottrell type of cutter such as is shown, described and claimed in United States Letters Patent No. 391,949,

dated October 1888 entitled paper cut ting machine, and granted to Calvert B.

Cottrell.

To permit shorter length of sheets to be passed through the cutting mechanism than has heretofore been possible, I make the cutter carrier for the blade-25 of crankform,

its

shaft sections

34, 35, being in alinement and its offset portion 36 at the ends of the

crank arms

37, 38, forming a support for the said cutter blade 25. The

shaft sections

34,35, are mounted to rotate in

stationary supports

39, 40, carriedv by the framing26 of the machine. The gear 27 is shown as fixed to the shaft section 34 and the gear 28 as fixed to the shaft section 35 of the cutter carrier, exterior to the framing 26.

The web carrier is shown herein as ajpin carrier and has its axis arranged at an angle to the axis of the, cutter carrier but at right angles to the lin e\ of travel of the web, the said carrier comprising two arms 41, 42, mounted on the stationary supports 39, .40 eccentric to the. axis of the cutter carrier, the said arms being connected by an offset portion 43 located adjacent toand back of the cutter blade 25.

The web carrier is driven from the cutter carrier in the present instance by providing the

crank arms

37, 38 of the cutter carrier with rearwardly extended

branches

44, 45, having elongated slots 46 and providing the arms 41, 42 of the web carrier with rearwardly extended

branches

47, 48,

inwhich stud shafts

49, 50 are mounted to rotate, the said stud shafts being provided with eccentric cams 51 located in the elongated slots 46 of the branches 44', 45, of the cutter carrier.

The

stationary supports

39, 40 have fixed thereto

gears

52, 53, concentric with the axis of the web carrier and eccentric to the axis of the cutter carrier, around which gears are fitted to travel in mesh therewith, gears 54, 55, fixed to the stud shafts'49, 50, carried by the web carrier. These parts are so related that as the cutters are rotated at the same speed as the surface speed of the impression cylinder, the movement of the web carrier will be retardedduring the first half of the revolution of the cutters after the preceding "sheet has been severed from the web and will be accelerated during the second half of the revolution. This webcarrier because of its being mounted eccentrically to the axis of rotation of the cutter carrier, will describe a circular path which will be beyond the path of the cutter when passing the set of grippers on the impression.cylinder. It is-also desirable that the path of the web carrier shall be at or within the path of the cutter at the point where the two cutters co-act to'sever thesheet from the web.

The type of'web carrier shown herein is a pin carrier and the pins are denoted by 56 and they are mounted to slide in the offset portion 43 of the pin carrierl The movements of these pins are controlled by a rockshaft 57 which is provided with an arm- 58 connected to spring'actuatedmeans 59 tending to slide the pins outwardly into-engagement with the advance edge of the web at the time the precedingsheet is cut therefrom, and an arm 60 carrying a roller 61 arranged to be engaged by a stationary cam 62 fixed in the present instance to the stationary sup-.

port 40 of the framing 26. v This cam 62 is so arranged that the pins 56 will be held in their withdrawn position until the sheet is about to be severed from the web when the pins will be released and permitted to engage the advance edge of the web.

In operation, it is to be understood that the rotary cutters are being driven at the ism, an impression cylinder of which is shown same surface speed as the printing mechan-.-

herein, and that the web 3 is to be driven at the same speed as the cutters at the time of .cut, the means for driving the web not being shown herein as it forms part of a co-pending application filed by me of even date herewith Serial No. 293,923. The driving connection between one of the cutters and the web carrier is such that as the sheet is being severed from the web, the web carrier is being driven at the same speed as the cutter. As the cutter is rotated the first half of its revolution, the speed of the web carrier is gradually retarded owing to the eccentric (L111 connection between the cutter and web carriers. The speed of the web carrier is then accelerated beyond the surface speedof the cutter during the second half of its revolution so that the advance edge of the web is fed into pression cylinder than the cutter blade atthe time that the advance edge of the web is fed' int0,the grippers.

In the form shown in Figs. 9 to 12 inclusive, the axis of the cutter is arranged at right angles to the lineof travel of the Web instead of obliquely thereto as in the form shown in Figs. 1 to 8 inclusive, and the cutter is herein provided with a serrated blade 25* which is arranged parallel to the axis of the cutter. -In.the form shown in Figs. 9, 10 and 11, the web .carrier is mounted eccentric to the axis of the cutter so as to bring the web carrier beyond the path of the. cutter blade as the web is being 'fed to the first impression cylinder. In the form shown in Fig. 12-, the web carrier is shown as mounted concentric with the axis of the cutter.- In all of these forms the driving connection between the cutter carrier and the web carrier is such as to retard and accelerate the speed of the web carrier with respect to the constant rotary speed'of the cutter.

Bymaking the cutter carrier of crank form it will be seen that shortsheets may be fedthrough the cutters-to the printing mechanism without varying the speed of the cutters.

What I claim is:

1. A rotary cutter and a web carrier driven thereby and located. at the back of the cutter blade, the axis of rotation of the cutter being at an angle to the axis of rotation of the web carrier. v

2. A rotary cutter and a rotary Web car rier driven thereby and located at the back of the cutter blade, the axis of therotary cutter being oblique to the line of travel of the advancing web and the axis of the Web carrier being arranged at right angles'to the line of travel of the advancing web.

3. A rotary cutter, a web carrier arranged to rotate therewith, said web carrier being located at the back of the cutter blade, and

.means for retarding and advancing the web carrier.

4. A rotary cutter and a rotary web carrier driven thereby located at the back of the cutter blade, the driving connection between the cutter and web carrier being such that the movement of the web carrier is retarded and accelerated during one revolution ofthe cutter. v

.5. A rotary cutter and a rotary Web carrier mounted eccentrically to the axis of the cutter whereby the circular path of the web carrier extends beyond the circular 'p ath of the cutter during part of the revolution of the cutter.

6. A rotary cutter arranged to travel at a predetermined speed and a rotary web car rier arranged'to travel. at varying speeds;

7. A rotary cutter arranged totravel at a predetermined. speed and-a rotary web carrier arranged to travel at a speed greater than the cutter during one part ofthe movement of the web carrie'r.

8. A rotary cutter arranged to travel at a predetermined speed, a rotary web carrier travel ata greater speed than the cutter during part of the revolution of the web carrier. 9. The combination with an impression cylinder of a printing mechanism, of a rotary -cutter driven at the same surface speed as the im ression c linder ri ers on the im res- P y 5% PP P sion cylinder and a rotary web carrier mounted eccentrically to the axis of the rotary cutter whereby the circular path of the web carrier extends beyond the circular path of the cutter at apoint adjacent to theimpression cylinder.

10. The combination with an impressioncylinder of a printing mechanism, of a rotary cutter driven at the same surface speed as the impression cylinder. gripperson the impression cylinder, and af -rotary web carrier arranged to travel at a greater speed than the speed of the impression cylinder when the carrier is in proximity to the grippers.-

11; The combination with an impression cylinder of a printing mechanism, of a rotary c'utter driven at the. same surface speed as the impression cylinder, grippers on the impression cylinder and a rotary web carrier mounted eccentrically to the axis of the cutter whereby the web carrier is brought into closer roximity to the impression cylinder than the cutter, the said rotary web carrier beingarranged to travel at a greater surface speed thanthe impression cyllnder when the carrier is in proximity to the grippers on the impression cylinder.

'12. A rotary cutter and a rotary Web cari rier arranged to travel at, the same speed as the cutter at the moment of cut and at a greater speed thanthe speed of. the cutter at another point in the revolution of the web 1 carrier and cutter.

13-. A rotary cutter arranged to travel at a predetermined speed, .arotary: web carrier and means for graduallyretarding the speedof the web carrier during one part of its revo lution and gradually accelerating its speed during another art of its-revolution, the surface speeds oft e cutter and web carrier being the same at the moment of cut.

14. A rotary cutter, means for drivin it at a predetermined speed and a rotary we carrier driven from the rotary cutter at varying speeds.

15. A pair of rotary cutters having their blades arranged to ooact with each other, one of the cutters being of crank form having an plll'sgt portion forming a support for its cutter 16. A pair of rotary cutters having their blades arranged to coact with each other, one of the cutters comprising two shaft sections spaced apart and in alinement with each other, two crank arms and an offset portion forming a support for the cutter blade. I

17. A rotary cutter carrier mounted in a stationary support and a rotary web carrier mounted on a stationary support, the said web carrier having a geared connection with the stationary support and a cam connection with the cutter carrier whereby the speed of the web carrier isvaried with respect to the speed, ofthe cutter carrier.

18. A rotary cutter carrier mounted in a stationary support and a rotary web carrier mounted on the stationary support, the said web carrier having a geared connection with the stationary support and an eccentric cam connection with the cutter carrier whereby the speed of the web carrier is varied with respect to the speed of the cutter carrier.

19. A rotary cutter carrier mounted in a stationary support and a rotary web carrier mounted on the stationarys'upport eccentrically to the axis of the'cutter carrier, the said web carrier having a geared connection with the support andafcam connection with the cutter carrier whereby thespeed of the web carrier is varied with respect to the speed are different A rotary cutter carrier mounted in a stationary support and a rotary web carrier mounted on the stationary support eccentrically to the axis of'the cutter carrier, the said web carrier having a geared connection with the stationary support and an eccentric cam connection with the cutter carrier whereby the speed of the web carrier is varied with respect to the speed of the'cutter carrier and their rotary paths are different.

21. A rotary cutter-carrier of crank form having its shaft sections mounted in a stationary support and a rotary web carrier. mounted-on the stationary support, the said web carrier having a geared connection with the stationary support and an eccentric cam connection with the cuttercarrier whereby the movement of the web carrier is varied 35. of the cutter carrier and their rotary 'paths with respect to the movement of the cutter carrier.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this 28th day of;

F. GEORGE BARRY,

' FREDK. HAYNES.