US867778A - Printing-press. - Google Patents

Description

No. 867,778. PATENTBD OCT. 8, 1907.

J. P. AMBS.

PRINTING PRESS. APPLIOATION FILED MAY 2a 1900 2 SHEETS-SHEET 1.

Wi tnessese I @z No. 867,778. 7 PATENTED OCT. 8, 1907.- J. F. AMES.

PRINTING PRESS.

APPLICATION-FILED MAY 29, 1906.

- z SHEETS-SHEET 2.

"QihQsSESr J% a 2? 7 UNITED strings PATENT onsron:

Jonri- FREEMAN dMEsoF PORTLAND, OREGON. f

. p 1" P I LITING-PRESS To all whom 'it may concern:

Be it known that '1, JOHN FRnEMAiI AME-S, a citizen of the United Stat-cs. residing at Portland, inthe county I of Multnomah and State of Oregon, have invented new." and useful Improvements in Printing-Presses, of which bags, shhcts and the like ofdiffereut 'sizes' and to brands of different sizes. 1

' The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accomhanying drawings, in which. i

Figure l ,is a side elevation of the invention. Fig. ,2

' Fig. 3 is a side elevation of part of the machine from the side opposite to that shown in Fig. 1. Eig. 4'is a side -clevation partially diagrammatic of a modified form of the invention. l

printing on fabric for'use in the manufacture of bags; the fabric being wound on a roll, fed through the press, printed at regular intervals, andpafter being printed, delivered for subsequent dividing into various lengths.

I A represents a suitable frame, 2 the form cylinder,-

carrying the type and characters by which an impression is transferred to thesurfaces of the fabric to be printed on, and 3 the impression cylinder between which and the form cylinder the said fabric is adapted to be passed in order to receive the impression. The

form cylindercarries all the ,printingmatter it is desired to print. 4 i e 1 Associated with the form cylinder are one or more ink-applying mechanisms or r its i by which any desirednumberp'f colors may be applied to the printing surface on the form cylinder. The printed matter on cylinder 2, representing a form'or brand,-is indicated .at5'.- v

The form cylinder is drivencontinuously and may 1 L5 be operated from any suitable source of power through shaft 43 carrying a small pinion 44' engaging the gear 45 on the cylinder shaft lfi. The impression cylinder 3 i is positively driven in-unison with the form cylinder bythe gear 13 on shaft 16 meshing gear 47 on the impression cylinder. ,The latter is covered with felt or other substance commonly employed for receiving the impress of-the type, and this felt may be attached to the roller in any suitable manner.

/ The cloth, if it is desired to printon cloth, is wound asacontinuous strip in a roll and is fed from the roll between the cylinder carryingrthe printing form and Specification of Letters Patent. Application filed May 29, 1906. Serial No. 319,336. I

is a sectional view of same, partially diagrammatic."

LilliLVG shown the-press asparticnlarly:adapted rd ,Patented Oct. 8, 19 O7.

the impression cylinder. As the two cylinders are connected by gears and move on the surface at equal speed, it will-be seen that; the revolution of the cylinders with th'e cloth between them when the' printing form contacts with the impression cylinder, would operate to move-the cloth forward a distance equal to the width or length; of the brand. It is not desirable however to rely on the intermittent contact of the two cylinders to advance the cloth through the press, since after each impress by the form, should then cloth be allowed to come to a stand-still there would be a smudge of ink at the beginning of each'contact of the form and the cloth; moreover the cloth would likely'be drawn forward unevenly and result in an uneven ,brand on the finished bag; furthermore'such intermittent action of the cloth doe s not advance the cloth spfficiently be-' tween eachlimprint to allow for borders, cuttingfseams &c. of the imprinted bag blanks which aresubsequently severed from the strip, 50, in order to advance the clothsufliciently before and after each impression, and overcome smudging l provide means to feed the cloth prior to and subsequent to each imprinting operation and at a unison speed with that of the form cylinder and'by means independent of the frictional contact of theform and impressioncylinders. t On opposite sides of the impression cylinder 3 are the rollers 48-49, 'Fig. 2. Roller 48 is journaled in: arms 50 locked to the rock-shaft 51. Roller 49 'is journaled ini the arms 52 which are pivoted to arms 50 at 53. By means of set screws 54 the two rollers are adjusted'so as both tocontact simultaneously with, and with equal pressure-on the impression cylinder 3: the one roller to bear on the cloth before it passes beneath and to L feed iteto 'the type-form, the other to bear on the cloth p after it has passed t e form and to aid in stripping the cloth from the form and prevent its following the form cylinder around. These rollers 48-49 are of'suflicient weight that when they rest on thecloth which is sup l ported on the impression cyliirden-the cloth willdbe I fed forward authe, s ame rate of s eed at which the form i cylinder revolves'since the latter and the impressioncylinder turn in unison through the engagement of .the gears. 13- 47 as described, This contact of the rolls 48-49 with the impression'cyli'nderis periodic and is regulated according to the width of the bag blank; for small Joags, it is less, while for large .bags it is more and their contact with the impression cylinder issuch thatthe cloth isset inmotion ,long enough v ahead of the contactof the type form with the cloth .105 and is prolonged sufliciently after the type form leaves thetcloth to prevent smudging and to advance the cloth the required bag blank distance. This intermittent contact of the feed rollers with the impression cylinder to sofeed the cloth as thus described, is ef- 11Cv fected, through the medium of anadjustable and ex' pansible:camii55 lon shaft11G periodically engaging a printing into blanks for 50 lb. flour roller 56, on an arm 57 keyed to rock shaft 51. Roller 56 is pressed always into the path of the cam through theagency of spring 58. s 1

Cam 55 is important since it is eircumferentially ex tendible or contractible by reason of the pivoted concentric sectors composing it, to offer a more or less extended contact surface to roller 56. The several sectors are slotted as at 59 and are adapted to be locked in suitable mutual relation by the lock screws or bolts 60.

The size of'the cam is commensurate with the maximum and minimum sizes of the different bags to be printed. In actual practice I have adapted a press to print a continuous length of cloth to be cut into individual blanks for small salt-sacks, and also to print with the utmost precision a strip to be subdivided after sacks. By opening out the cam sectors, the period of contact with roller 56 is prolonged to cause the feed roller to re- -mainout of contact a corresponding.length of timewith the constantly revolving impression cylinder.

- By closing up the cam sectors theoperation of the feed roller is lengthened and hence a greater quantity of cloth is run through the press during and between each revolution of the form cylinder. Obviously with the press running at a constant ra te of speed, the pe riod that the cloth would remain at rest between each impression for a small bag would begreate rfthan for a large bag. l

. -In my structure the feed roller can be set,' "by adj List;

ing the sectors of the cam properly, so as to cause the feed roller to contact regularly at any desired place on the peri h ry of the im ressiohc linderl The im- P f? P 3.

portance and the reason of this function of variableness, as I-term it, will be apparent shortly.

I My invention is for feedinga web to be printed with a large or small brand at regular intervals and which web is subsequently to be cut, into desired lengths: to

accomplish this purpose, I use in conjunction with the feed roll the expansible cam which is not only adjustable to permit of longer or shorter lengths of material being fed into the machine, but it is also variable iii that the cam sectors can be so changed or arranged, or turned on their pivots, as to alter the point ofconta'ct of the feed roll with the impression cylinder. The ability to make theyariationin the point of contact is absolutely essential to the successful operation of the mechanism.

lt'is obvious that if the cam was fixed on the shaft andthe time and point of contact of the feed roll with be impossible when printing and feeding acontinuous web, to adjust theprinting to its proper position since no two brands would be exactlythe same dimensions and the border at each side of the printed matter would ion as to insure the right not always be thesaine. By having a cam made up of movable sectors, I can vary the relative points of contact of the form and iinpr ss ion cylinders in such fashsize border irrespective of the size of the'brand,.' i

The imprint is given by the form cylinder at some time before the beginning and after the-end of the contact of the cam with the roller 56 although that'is not so important as that the engagement of the form-with the cloth should be subsequentto the starting in motion of the cloth so. as to prevent smudge as before stated.

. In order to properly direct theweb into position beby hand. device to feed automatically a coniiniionswch of any tween the cylinders and in line with the printing form, the arms 50 are connected at the rear by a cross bar til having a series of holes 62 for the receipt of the guide pins 63 which can be separated more or less or shifted from side to side according to the width of the slripiiiid the relative location of the brand on the form cylinder.

Having set the web and its roll in motion in the feeding operation, itis desirable to check the further progress of the web between the type and impression cylin- 'der as soon as the rollers 48-4.) are lifted. OillOlWlSO there is a tendency for the web to continue in motion after the feed should stop, by reason of the momentum given to it with the result that the brands will not be imprinted at uniform or proper distances apt H. l have therefore provided the rear ends of the Zll'illS 50 with a. clampbar 64 which is adapted to cooper-ale with the stationary cross bar 65 to grip the web each time the feed is interrupted. When the feed roller 48 is out of contact with the impression cylinder, the bars 64-65 are engaged with the web and the latter is positively hold againstmovement. When the roller48 engages the inipression' cylinder, the clamp bars (54- 65 are separated to release the web and the same can feed forward. T11 is engagement of the web by the grippers 64--G5on lho feed'side of the cylinders, or in other words'ihe arresting of the progress of the imprinted porl ion of the web,

is'quite different from checking the progress of the web on the deliveiy side of the cylinders or off or the web has been printed. In the latter case there is nothing to prevent the web biinching up between the stop means and the c yliiiddrs; it is liable, if not certain, to result in the brands either going on 'crooked or in their not being properly spaced. v

In Fig. 4 is indicated a modification of my feeding arrangement adapted to a press of'ihe type commonly used for printing cloth or other-1miteri=d in colois. Usually the separate sections or sheets are fed-in singly I have shown how it is possible iOlHlilIli my sort of fabric to'a press of this description and print lhc same at regular intervals. Us'ii-allyiho impression cyl inder'ofthis type of press is from two to three times the size of the form cylinders, and the latter with their se\'- eral ink applying devices are arranged circiimfeiieiil lillly of the impression cylinder; the separate pieces to be printed being held by grippers on the impression cylinder. In my rearrangement of a,prcss of this type, I do not arsethese grippers buteinploy a feed roller 48 having a movement to and from'the impression cylinder to grip the web periodically and posiiivelyfeed the same forward. Thi'sfeed roller is operated in the same manner as first described. I may employ a stripping roller 49 and the web gripping means 6465. lhe

. adjustable cam 55 is now placed on the impression cylindershaftand operatesa crank arni 57 which rocks the shaft 51, which latter carries the arms 50 in which the I L feed roller 48Cis ournaled'. A spring similar to spiing 58 of Fig: l, but whichis not shown in Fig. 4, acts to hold'the feed roller normally to the impression cyli r- The stripping roller 49 is adjiistably carried by the arms 50 and the gripper 04 operates alternately with the feedroller'to arrest positively the advance of thedniprinted web to the cylinders. The adjustment of the stripping roller 49 is effected by means of the se'tscrew 49 as plainlyshown in Fig. 4. Thus it Wlllb0 seen 'gthat by my particular combination of form cylinder, an impression cylinder and a feed device movable toand from the impression cylindenl am able to apply my invention' to a great variety of presses already in use.

It is possible that various changes and modifications may be made in my invention without departing'from the principle thereof andI do not wish to be understood as limiting myself to the specific construction nor the specific uses therein described.

-' tween the cylinders and alternately with said feeding means to arrest the progress of the material.

2. In a printing-press, the combination witlrthe form cylinder, of an impression cylinder, and variable and ad-- justable means for intermittently feeding aficontinuous strip of material between said cylinders, said feed means including a roller movable to and from one or said cylinders. I

' 3. Inla printing-press the combination of continuously "operating form and impressioncylinders, of adjustable means operated by said cylinders for feeding material. intermittently thereto, said adjustable means; including a roller movable to and 'from theimpression cylinder.

4. In a printing press, the 'combinati )nwiththe ioi-m and impression cylinders, of means for operating them cpntinuously, means including a roller movable to and from the impression cylinder for feeding material intermit tently ,to' said cylinder, and means for adjusting: the feed of the material to the size of the brand and the desired border arou d the brand on the materialto he'p-rinted.

5. Ina p in'ting-press, the combination with constantly rotating form and impression cylinders, of means operating in unison with the cylinders .and including a roller movable to and from the impression cylinder to intermittently feed material thereto, and means including an ex-- I pendent of the rotation of the cylinders.

pan'sible cam for varying the amount 'of this'feed inde 6.- In a printingpress, the combination with form and impression cylinders, of means includingqa roller movable to d from one of said cylinders and-operating in unison therewith tp 'feed material 'thereto, and means for varying the amount of feed independent of the speed of the cylinders; f I I 7. in a-printing press, the combination with form and impression cylinders, of means operating in unison therewith to feed material intermittently thereto, and means .for varying the amount of feed independent of the speed of the strip of fabric and independent of the contact of and impression cylinders, 0g

of the cylinders, said last named means including a circumferentially ex'pansible cam. r

, S. In a printing press, the combination with form and impression'cylindersbetween which a doritinuous strip of" -fabric is adapted to be passed, ofmeans'for Operating the cylinders continuously, meansengaging the entire width i'the form and impression cylinders,to advance the strip step by step, and means for varying the length of iieed of 9. In aprinting press', the 'combination with .the form periodically to advance mate rial betweenthe cylinders and means for varying the; interval between the. said periods of contact.

10. In a printing press, the combina ion with the form and impression cylinders, of a feed roller-movablet'o and from the impression'cylinder and contacting therewith periodically to advance material between the cylinders and means ;for varying itheintervalbetween the said periods of contact, said last named means comprising an expunsible cam.

v I .11. in a printing-press, the combination with the form sevnrs it i a feed roller m'ovahle to and y from the impression, cylin er and contacting therewith.

and impression cylinders, of a feed roller, an oscillating support for said roller, said'roller arranged to'contact with the impression cylinder to advance material between the two cylinders, and means for operating the said oscillating support and means for varying the point of contact and also the period of contact of said roller with the im'- pression cylinder. A 1

12. In aprinting-press,- the combination with the form and impression cylinders of a feed roller, an oscillating support for said roller, said roller arranged to contact with the impression cylinder to advance material between the two cylinders and means for operating the said oscillating support, said last named means including an expansible cam. r I

13. In a printing-press, the'combination with the form and impression cylinders, of a feed roller, an oscillating support for said roller, said roller adjustably mounted on "said oscillating support and arranged to contact with the impression cylinder to advance material between the two cylinders, means for operating the said oscillating support, said last named means including an expansible cam, and said oscillating support provided with means for guiding the. material between the'cylinders. 14. In a printing-press, the combination with the form and impression cylinders, oftwo rollers movable to and from the impression cylinder and on opposite sides of the form cylinder, .and meansoperating conjunctively with the form cylinder-to operate'said rollers.

15. In a printing'press, the combination with the form .and impression cylinders, of two rollers movable to and from the? impression cyllnderand on-opposi te sides of the form cylinder and means operating conjuncti'vely with the term cylinder to operate said rollers, saidlast-named means including a cam on thelform cylinder shaft.

16./In a printing-press, the combination of a suitable frame, form and impressioucylinders, an oscillating support journaled in said frame, a roller carried by said 'sup port and movable into contact'witli the impression cylinder to feed material between the cylinders, a second roller carried by saidsupport'and arranged contiguous to the impression cylinder and on. the opposite side of the form cylinder to strip the printed material from the form, and

means to {oscillate said. support. I

17. In a printing-press, the combination of formand impression cylinders, a movable" support, two rollers carried .by said support and arranged onopposite sides of the form cylinder and movable into and out of contact' with the impression cylinder, .and means to operate said support.

' 18. Inu printing-press, the combination of form-and impression cylinders, a movable support, two rollers carried by saithsupport and arranged on opposite sides of the form cylinder and movable into and out of contact with the impression cylinder, and means to operate said support, said last-named means including an expansible cam on the shaft of the form cylinder.

19. In a printing-press, the combination ottorm and. impressionrylinders, an oscillating support, a feed roller carried .by said support and. r'novableinto and out of contact with theimpression cylinder, a perforated bar-cal ried by said support-with pins fitting the perforations therein for guiding ,the materiabbetween the cylinders,

and means operated conjunctively with the form cylinder -for oscillating said support.

20, In a printing-press, the. combination of form and.

impression cylinders, an oscillating support, a feed roller carried by said "support and mpvable into and out of con- 'tact with theimpression cylinder, a perforated bar carried by said support withpins fitting the perforations therein for guiding the material'between the cylinders,

and means operated o'njunctively with the formcylinder for oscillatingsaid support, and a stripping roller carried by said sppport and arranged proximate to the impression cylinder on the opposite side of the form cylinder.

21. In aprinting press, the combination of a form cylinder and its shaft, an impression cylinder, a feed roller,

a movable support for said feed roller, an arm connected withsaid support, and a' carn comprising a plurality of adjustable sectors on the form" cylinder shaft engageable with said arm to operate said feed roller.

roller.

impression cylinders of a feed roller arranged to contact &

22. In a printingqn'ess, the combination of .a form cylinder and its shaft, an impression cylinder, :1 feed roller. a movable supportfor sa-id feed roller. an arm connected with said support, and a cam on .the form cylinder-shaft engageable with said arm to operate'said feed roller, and

astripping-roller adjustably carried by said support and arranged on the opposite side of the impression cylinder. 23, In a printing-press. the combination of a form cylinder and its shaft. an impressionc ylinder, a feed roller, a movable support for said roller, :1 rock shaft on which said support is mounted. an arm on said rocl shaft. and an expansible cam on the form cylinder 'shaft engageable with said arm to operate the feed roller. 7 k :24. In a printingpress. the combination of a form cyl. inder and shaft. of an impression cylinder, :1 feed roller, a movable support for said roller. a rock shaft on which said support is' mounted. an arm on said rock-shaft, and an expansible cam on the form cylinder shaft engz geable with said arm to operate the feed i( e and a stripping roller pivotally and adjustably moungfisn said feedroller support and arranged on the opposite side of the impres-' sion cylinder.

25. In a printing-press, the combination with form and with the impression cylinder, means for moving said roller to and from said cylinder synchronously with the rev olution of the form cylinder, and a stripping roller on'. the other side of the impression cylinder movable in unison with said feed roller.

26. In a pi-intingpress, the combination with the form and impression cylinders, of afeed'roller, an oscillating support for said roller, said roller arrange to contact with the impression cylinder'to advance material between thetwo cylinders means for operating the said oscillatin: support, and astripping roller adjustablyconnccted with said support and movable in unison with the'feed 27. In a printingpress, the combination'with form and impression cylinders of a feed rollel arranged to contact witlrthe impression cylinder, means for moving said roller to and from said cylinder synchronously with the revolution offthe form cylinder, and grip'mechanism. oper= 'ated alternately with the feed roller for checking the movement of the materiaL- 28. In a printing-press. the combination with ferm and impression cylinders of a feed rollen arranged to contact with the impression cylinder, means for moving\ said roller to and fromsaid cylinder synchronously with the revolution of the form cylinder, grip mechanism operated alternately with the feed roller .for checking the movement of the material, and means including ,anienpansible cam for operating-said feeding and gripping means. 7 2!). -In a web-printing press, the combination with the form and impression cylinders, of a feed device movableto and from the impression cylinder and co-acting with said impression cylinder to grip the web between said dea feed device movable printing press, the combination with the to and from the impression cylinder and co-actlng with said impression cylinder to grip the web between said device and said impression cylinder to feed the web posh lively to the cylinders, and meansfor varying the period of contact of said deviccwith said impression cylinder to permit longer or shorter lengths of web to be fed to the cylinders.

31. The combinationwvith form and impression cylindcrs, of a feed roller movable to and from one of said cylinders to feed material between said cylinders, and means alternating with the action of said feed roller to arrest the feed of the imprinted portion of the web to the cylinders.

32. In a web printing press, the combination with the form and impression cylinders, of a feed device movable to and from the impression cylinder and coacting with said impression cylinder to grip the web between said device and said impression cylinder to feed the web positively to the cylinders, and intermittently actuated means operating prior to the entry of the unprinted part of the web between the, cylinders to arrest the feed of the web.

33. In a web printing press, the combination with the form and impression cylinders, and means to convey the web intermittently therebetween, of. a gripping device acting on the web for "positively checking the forward .movement of the web between each imprinting operation said gripping device positioned to grip the web prior to its entry between the form and impression cylinders, and means to operate it alternately with said web conveying means. x

- 34. Tile combination with'a web printing press, and

means for feeding the web intermittently, ofi a gripping dc vice acting on the web alternately with the imprinting operations to arrest the movement of the web said grip ping-device comprising two coacting jaw members positioned to engage the web prior to its being imprinted,one of said ja'w members being yieldingly supported, and means to move the other jaw m'embcr towards and from the first.

35. The combination with a web printing press, and means for feeding the web intermittently,'of a gripping device acting on the web alternately with the imprinting operations to arrest the movement of the web, and means including an expansible cam for operating-said gripping device said gripping device comprising two coacting jaws, one of said jaws being yieldingly supported and the'other. mounted on a rockable support.

36. In a web printing press, the,combination of form and impression cylinders. means for feeding a web intermittently, a gripping device acting on the web to arrest its movement, and an expansible cam on the shaft of one 01: said cylinders to operate said gripping device said gripping device comprising two coacting jaws, one of said jaws yieldinglyt supported and support;

-In testimony whei-Qf I have hereunto presence of two subscribing witnesses.

. Witnesses: I

FRA NK STONE, KnN'r M. AUSTIN.

set my, hand in JOHN FREEMAN AMES.

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