US1203275A - Web-printing machine. - Google Patents

Description

D. J. SCOTT.

WEBPRINTING MACHINE.

APPLICATION FILED APR. !0, 1915.

Patented Oct. 31, 1916,

7 SHEETSSHEET I.

nvenfoz D. J. SCOTT.

WEB PRINTING MACHINE.

APPLICATION FILED APR. 10, 1915.

Patented Oct. 31, 1916.

7 $HEETSSHEET 2.

D. J. SCOTT.

WEB PRINTING MACHINE.

APPLICATION FILED APR. 10.1

Patented Oct. 31, 1916.

[SHEETS-SHEET 3.

. I I u l I I I I l l I aim mam 5 wvewto'c v n. J. SCOTT.

WEB PRINTING MACHINE.

'PLICATION FILED APR-10,1915- 1,203,275. Patented Oct. 31,1916.

ISHEETS-SHEET 4.

' 5] wvewfo-z D. J. SCOTT.

WEB PRINTING MACHINE. APPLICATXON FILED APR. 10, 1915.

- 1 QGS VE a Patented Oct. 31, 1916.

I SHEETS-SHEET 5.

5] save M20:

D. J. SCOTT.

WEB PRINTING MACHINE.

APPLICATION FILED APR. 10, 1915.

gnuemfoz YSHEETS SHEET 5.

Patenteci Oct. 31, 1916.

n. J. SCOTT. WEB PRINTING MACHINE.

APPLICATION FILED APRMO. 1915.

1,203,275. Patented Oct. 31,1916.

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'rnn STATES? PATENTJOFF 3 DAVID J. soccer, or PLAINFIELD, NE -JERSEY, ASSIGNOR To s-ABE LA SCOTTAND DAVID J; soo'r'r, EXEC-UTORS or WALTER sco'r'r, DECEASED; orzenamrmm), NEW

JERSEY.

To all 'lLll-OWL it may concern I 'Be it known that I,- DAVID J. SCOTT, a. citizen of the United States, and resident of Plainfield, in the county ofITnion and State of New Jersey, have invented certain new and useful Improvements in "Web-Printing Machines, of which the following 15 a spec1-- The present invention relates to Web.

printing machines whether of the rotary or flatbed type, but is especially advantageouson arotary lithographic machine either printing directly from lithographic plates on the impression receiving material, or; printing by the offset process, that is,

through the medium. of a. transfer membe carryin a rubber blanket.

In al lithographic presses the process of inking np'the plates, and, in offset pres es also the process of inking up the blanl et, requires the operation of the press so that the printing plateshall be dampened and inked in the same way as whenthe press is in actual operation during printing, soas. to bring out the details of the work properly. I Since this preliminary inking up operation is apt to last forsome time- 1n some cases as long as 10 or 15 minutes at a stretch-a considerable amount of paperis wasted -because, while no printing is being done, the threaded Web continues to be forwarded through the press. This can be avoided by breaking the web when the machine is being run for thepurpose of ink Also it is obvious thatthe delivery mochaing up the forms, but this has the disadvan-- tage that it requires the web to berethreaded before the actual printing can take place.

nism, or certain parts thereof, bear a timed relation to the printed matterupon the web since folding or cutting must only take place in the margins between the printed matter, and that therefore when threading upthe;

"web again care must be taken to restorev this proper timed relation between the printing A means and the delivery means. In order to rethread the press it' is customary therefore to'stop-the press and such actiomin a litho-.

V a graphic press, involves gumming .upph-the plate to prevent the fornrfrom" oxidation while the press is standing, andaga'm washing ofi the gum before starting up and printing.

[ It is the object of the presentinvention to WE -,PRInTmGMACHIN provide means whereby the printing luathe Web, so that the \vaste ofpaper, due to theincidental operation ofworking. on the plates, may be reduced to a minimum. i

irccordingly one feature of the invention consists in a web pr nt ngmachine.compris:

ing web printingmezrns and web forwarding means through which a \vebisthreaded. to-

Specification of Letters Patent, IIH ItciitO L 1, 6.

Application filed April 10, 1915. Serial No. 20 ,402.

gctherivith means for drivingsaidprints ing: and foriva rding means a t correct I relative speeds or in timedrela-tion topr intand forward the :iveb and .means wherebythe printing means -ma v bev drive r without-- 'printingand fonwarding the threaded webzi and without unthreadingthe web.

The printing .means may be ofany type suitable for printing a web and the forward-.- ing'mea'ns may consist offending oi-fpullingf. rollers or of a delivery mechanism, or fr both. Suitable driving connections.arepror. vided. of any type fordi'iving the printing,

meansjand the forwarding. means or deliv ery means'in tuned relation. 7

The deliver v mechanism maynbe of any approved form and may. be adapted to de-' liver the web insheet formyeither in a folded or unfolded condition. y

The means folpermitting the operation of the printing members .ivithout printing 'or advancing thefltln eaded wcbjmay consist of well-known means for tripping theprinti mg members or may comprise meansfor I l I separating said members orcyhnders of any;

suitable constructmn, together with .means of any suitable; charactenfor stopping'gthe a:

forwarding of the web. Said means fo'nf stopping the forwarding of} the, web Qmay',

nism, but preferably. shown a. clutch is utilized which clutch may be of any apposed at any suitable point 'in the driving connections between the printing, means and the forwarding means and may render idle either the pulling'orfeeding rollsor the (169 L ven i m an Pa t er Q9 consist'of any suitable devices forstopping, the moving parts, a simple forinaof' whi ch would be the renio'valgoi' uncouplingof a gear or belt or other transmission mecha- C 1' ro v'ed form. This clutch may be inter;

aEsT AVAlLABLE COP.

Any suitable means may be utilized to operate the tripping and web stopping means and such means may be actuated sepai;atel v by the pressman but in the preferred form. as herein disclosed, a common operating means is provided whereby the impression is tripped and the threaded web is stopped.

Other features of construction, combination of parts and arrangement of elements will appear as the specification proceeds.

1n the accompanying drawings the invention is disclosed in sevemlnngeieand preferred forms from which, lioweverfchanges may be made without departing from the legitimate and intended scope of the invention as expressed in the appended claims.

In the said drawings: Figure 1 is a diagrammatic side elevation of a printing machine having a former folder embodying the invention, Fig. 2 is a diagrammatic side elevation of a .fprinting machine embodying the invention having a flat delivery. Fig. 3 is a diagrammatic side elevation of a machine similar to the one shown in Fig. 1 but disclosing a different means for stopping the advance of the web. Fig. 4 is a diagrammatic side elevation of a machine similar to the ones shown in Figs. 1 and 3 but disclosing a different means for stopping the advance of the sheet. Fig. 5 is a diagrammatic side elevation of a different type of printing machine embodying a modified form of the invention. Fig. (3 is a diagrammatic side elevation showing a printing means different from that disclosed in Fig. 5 and showing a former folder. Fig. 7 is a detail view of one means for stopping the advance of the web. Fig. 8 is a detail view of a breaker knife for severing the web.

Similar characters of reference indicate corresponding parts throughout the several views.

In Figs. 1, 2, 3 and 4 the printing means consist of two printing couples. A and B which are adapted to print and perfect a. web, each couple consisting in this instance of an impression cylinder 1, a transfer cylinder '2, a plate cylinder 3, together with the usual inking devices 4 and dampening mechanism 5. Adjacent to each impression cylinder is a trip shaft 6 which, by means of wellknown connections such as 7, cause the impression cylinder to move in the sliding boxes 8, thereby permitting the impression and blanket cylinders to become separated or to be brought together.

Power is supplied to the machine in any suitable way not shown, and the two printing couples A and Ii are geared together in a well-known manner, here indicated as a shaft 10, having bevel gears 11 which mesh with corresponding bevel gears 12 with which moves spur gears 13 meshing with similar spur gears on the impression cylinders 1, from which latter motion is trans- .mitted to the other cylinders in a known manner.

(onfining now our attention to Fig. 1, C represents a delivery here shown as a former folder of any suitable character, the cylinders and rollers 11 of which are driven from a shaft 15 through the train of spur gears 16 and throughbevel gears 1'7, upright shaft 18, bevel gears 19 and shaft 20, 21 and feeding rollers, the from the upright '22 indicating pulling or latter of which is driven shaft 18 through the train of gears 23 terminating in the-inteimediate 24. The rotation of the roller 22 is controlled hgaclutch l). The shaft 15 is driven from th'eshaft' 10 by means of the train of gears 25.

The clutrh D is in the present instance controlled by means of the connection 26, bell crank 27, rod 28, bell crank 29, rod 30 secured to the bell crank 31 on one of the shafts 6 being trip shafts the two trip f er by means 0 preferably connected toget the lever 32 as shown.

The web E comes from the source of sup ply 33 and is guided over suitable rollers to the impression cylinder 1 of the couple A, thence by suitable means to the impression cylinder 1 of the cou le B, and thence by means of suitable gui e rollers to the pulling or feeding rollers 21 and 22, and thence to the delivery C.

. When either of the trip shafts 6 is operated the two impression cylinders 1 will be separated from their coacting transfer cylinders and at the same time motion will be transmitted through the connections 30. 29. 28, 27 26 to the clutch D, which results in the stopping of the rotation of the positively driven roller 22 whereby all movement of the web ceases. If the machine as a whole is now operated with the parts tripped and the web stopped but in threaded position, it is obvious that no printing or feeding of the web will take place but that, nevertheless, the timed relation between the delivery and the printing machine will be maintained. The tension on the paper roll is sufficient to prevent the running cylinders 1 from feeding the web by friction on account of wrap of web around cylinders 1.

In Fig. 7 there is shown a detail view of the parts relating to roller '22 controlled thereby. In the'prescnt instance the intermediate 24 meshes into a sliding gear 34 of double width, said gear being loosely mounted upon the stud 35. Connected to this gear 34 is a, clutch 36 adapted to engage with a member 37 fast on the stud 35. The stud 35'carries the positively driven ulling roller 2' When therefore the mem r 36 is pulled ut of engagement with the member 37 the rotation of the roller 22 will cease. The'meons for actuating this clutch consists in the present the clutch D and/the instance of two bell cranks arrangedat right angles to each other. ()ne bell crank 38 has one arm connected to thei' nember 3 6 and has a pivotal movement on the cen'ter39. The

other arm. 39 of thi s,bell crank. is engaged by an arm of the bell crank l pivoted at 11 The other arm 12 of this Joell crank is suitably connectedtq the rod .26.

.scribed connection with Figs. 1 and 7,

which intermediate2lireceives its motionfronrthe gear 45, The gear 45 is driven by means of shaft i6, bevel gears 47, and shaft {18 which in this case 'is virtually an exten- .sionof the shaft, 10. The clutch D is, as

before,,controlled by the connections 26, 27,

2,8, 29 and 30, leadingto the trip shaft 6.

. In the form shown inFig. 3; the elements are substantially the same as thoseshown in Fig. 1, except that here the clutch. D is in tel-posed in the shaft 18 so that when it is disengaged from its 'companionmember the roller 22 will befstopped as will also the r0ller 14,. while the-cylinder, 140 will continue to operate in timed relation with the printing means. The connectionsfor driving the' parts in. unison and for controlling the operation of the clutch are the same in this figure as in.Fig. l. In this form therefore onlya: part of the folder is rendered inactive. T p I y y In Fig. 4. the general arrangement is the sameas in Figs. 1 and 3but in this instance the clutch D,is interposed in the shafting 15 so thatwhen it is uncoupled'from its companionthe folderv C-asa wholewill be stopped, as'well as' the roller 22. When this construction is used'the clutch .D is so arranged that itcan be thrown in only when the elements ccmprising thedelivery bear the proper. timed ,relation to the [printing means, This is vdone by providing the clutch members at proper circumferentialpositions .with respect to' each, other. The connections for controlling the clutch in this instance comprise the members 28,; 29 iLIldBO.)

.In Figs. 5 and 6 the printing couples are of a different character'from that shown in the first .four figures of the drawing.

In Fig. 5 the, printingmeans consist of two printing couplesA and B, ea'ch couple comprising an impression cy1inde1i49, a. lithographic form' carryingl cylinder 50, together with suitable inking means 51 a'nddampening mechanism 52. Theitwo impression cyl-Z inders 49 are here shownjas being geared to- I gether and theaveb. E is led first between .the' impression and plateg cylinders" of couple A and then between thelinipi'essiondridplate cylinders of-cou 1e .jB'r, and thence to the -deli'very by suita 1e means.

turn controls the roller 22. The remainder of the delivery is suitably driven from the gear 55 in a suitable'manner not shown. The clutch D here controls the roller 22 in the same manner as described in connection with Figs. 1 and 7 and the clutch is actu ated by connections 26, 27, 28, 29 and30 as before, connecting to the trip shaft 6.

- In Fig. 6 the printing mechanism consists of two blanket cylinders 56 Wl1lCl1"lCl3 as printing and impression cylinders with rela-' tion to each other, the said blanket cylinders receiving an impression from the plate cylinders57. Here the web E'is led in'between the twojcylinders 56 and thence to the delivery C. The delivery C is of the same construction asshownand described in connection with Figs. 1 and 7 and the clutch is controlled by the same connectionsas previously described. The means for driving the delivery 0 and the roller 22 consists of the shaft 15 and a suitable train gears 58 which connect to one of the cylinders 56.

In Figs. 1, 5 and G a web severing means 59 is disclosed adjacent to the-rol1er.22. This Web severing means is a breaker knife having preferably a. serrated edge, ass'hown inFig. 8, and is mountedon an arm which is pivotallysupported at 60. This breaker knife can be conveniently operated at the same time that the clutch D is operated by providing the extension 61 between the rod 26 and the breaker knife so that when the machine is tripped and the web is stopped the Web may be broken or s'evered, at that point. y I V In Fig. 3 the breaker knife 590 is located adjacent tothe cylinder 1&0. and is actuated by a suitable connection 591 which extends observed, howevcr,"that this severingofthe web does not necessitate a rethreading of it through the machine.

.aVVhat is claimed, is: T g 1. A \vebprmtmg machine comprising:

means through which R. web is threaded,

.means fordriving said printing and for- ;warding means to print and forward the web, and means permitting the'drivlng'of the"printing means without printing and forwarding. and withoutfunthreading the threaded web.

webprinting means and web forwarding printing means 2. A web printing machine comprising: printing means and delivery means through which the web is threaded, means for driving the printing and delivgry means thereby printing and delivering the web, and means permitting the driving of the printing means without printing or delivering and without unthreading the threaded web.

3. A web printing machine comprising: and delivery means through which the web is threaded, means for driving the printing and delivery means thereby printing and delivering the web, and means permitting delivery means without printing or delivering and without unthreading the threaded web. t

4. A web printing machine con'iprising: printing means, web forwarding means through which the web is threaded, means for "driving said printing and forwarding means thereby printing and forwarding the web, means for tripping the printing means, andv means for stopping the advance of the threaded web without unthreading the same.

A web printing machine comprising: printing means and delivery means through which the web is threaded, means for driving the printing and delivery means thereby printing and delivering the web. means for tripping the printing means, and means for stopping-,.the delivery of the threaded web without unthreading the same.

6. A web printing machine comprising: printing means and delivery means through which the web is threaded, means for driving the printing and delivery means thereby printing and delivering the web, means for tripping the printing means, and means for stopping the delivery of the threaded web without stopping the printing means and without unthreading the web.

7. A web printing machine comprising:

a .l I printing means, web forwarding means through which the web is threaded. means for driving said printing and forwarding means thereby printing and forwarding the web, means for tripping the printing means, means for stopping the advance of the threaded web without unthreading the same, and a common operating means for the tripping and stopping means.

8. A web printing machine comprising: printing means and delivery means through which the web is threaded, means for driving and printing and delivery means thereby printing and delivering the web, means for tripping the printing means,'means for .'topping the delivery of the threaded web without nnthreading the same, and a common operating means for the tripping and stopping means.

9. A web printing machine comprising: printing means and delivery means through which the web is threaded, means for driv the driving of the printing and ing the printing and delivery means thereby printing and delivering the web. means for tripping the printing means. means for stopping the delivery of the threaded web without stopping the printing means and without unthreading the web, and a common operating means for the tripping and stopping means.

10. A web printing machine comprising: printing means and delivery means through which th e'web is threaded, means for driving the-printing and delivery means thereby printing and delivering the web, and means permitting the driving of the printing means without printing or delivering and without unthreading the threaded web and without disturbing the time relation between the printing means and the delivery means.

11. A web printing machine comprising: web printing means, web forwarding rollers and delivery means through which the web is threaded, means for driving the printing and deliver\' means and the forwarding rollers. thereby printing, forwarding and dclivering the web, means for tripping the printing means, and means for stopping the rotation of the forwarding rollers whereby the web remains threaded, unprinted and stationary.

12. A web printing machine comprising: web printing means through which a web is threaded, means for driving said printing and forwarding means to print and forward the web, means for permitting the driving of the printing means without printing and forwarding the threaded web. and means for severing the web at a point beyond the forwarding n'ieans.

1;). A web printing machine comprising: web printing means and web forwardin' means through which a web is threadet means for driving said printing and forwarding means to print and forward the web, means for tripping the printing means, means for stopping the action of the web forwarding means, and means for severing the web at a point beyond the forwarding means.

H. A web printing machine comprisinw;

web printing means and web forwarding means through which a web is threaded, means for driving said printing and forwarding means to print and forward the web, means for tripping the printing means, means for stopping the action of the web forwarding means. means for severing the we; at a point myondthc forwarding means, and a common operating device for the tripping. stopping and severing means.

if). A web printing machine comprisin": web printing means and web forwarding means, through means for driving saidprinting and formeans and web fm'warding' which a web is threaded? 1 Ill warding, means to print and forward the web, and means permitting the'driving of the printing and forwarding means without printing and forwarding and without an threadingthe threaded web.

16. A, web printing machine comprising: weh printing means and web forwarding means athrough which a web is threaded,

means for driving said printing and forwarding: means to print and forward the threaded web, and means permitting the driving of sand printing means'whlle the web remains threaded, unprinted and stationary.

17. weh printing machine comprlsingz \reh printing means and web forwarding.

means, through which a web is threaded, means for driving: said printing and forwarding: means to print and forward the i v I \Q threaded web, and means permlttmg the driving of said printingand-gforwarding means while the web remains thre'aded, un-

printed and stationary.

181 A web printing machine comprising: web printing means and delivery means, through which a web is threaded, means for driving said printing and delivery means to print and deliver the threaded Web, and means permitting the driving of said printing and delivery means While the Web remains threaded, unprinted and stationary.

Signed at 'Plainfield, in the county of Union and State of New Jersey this eighth day of April A. D. 1915.

DAVID J. SCOTT.

Witnesses:

ARTHUR E. CRONE, CARL E. DRANGE.

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