US938381A - Impression apparatus. - Google Patents

Description

L. HUFFMAN.

IMPRESSION APPARATUS.

APPLIOATION ILED 1120.28, 190s.

Patented Oct. 26, 1909.

3 SHEETS-SHEET l.

INVENTOR Huffma/I L. HUFFMAN.

IMPRESSION APPARATUS.

APPLICATION FILED DBO. 2a. 190s.

' Patented Oct. 26,.1909.

3 SHEETS-SHEET 2.

WITNESSES A TTORNEY L. HU'FPM'AN. IMPRESSION APPARATUS. .APPLIUATION FILED Imc. 2a, 19043..V

938,381. Patented ocnfzs, 1909.

3 SHEETS-SHEET 3.

IN I/ENTOR To all 'whom it may concern."

Louis Horseman, or Tesorero, enranrogeizinesin.

MPRESSGN APPARATUS Specification of Letters Patent.

'timer-etes neeffie;

Application 'tiled December 2S, 1908. Serial No. effl.

Be itknown that l; Louis HUriiMAN, of the city of Toronto, in the Province of Ontario, Canada, have invented certain new and usetul linproveinents in Impression Apparatus, of which the. vfollowing` is a speciA tic-ation. v

'This invention relates to. apparatus in which rotary means are. employed to pro, duce a series of impressions at regular intervals on acontinuous band of material drawn 'through the apparatus at a substantially uniform speed. Such impressions may, for example, be printed ii'npres'sions as in aeylinder printing press, perforations as in a rotary perforator, or may amount-to a completey severing' of the material as in Ina-.- elunes for dividing a band of material into 1 sheets. In such apparatus, taking a. cylinder printing press as4 a concrete example, it has heretofore only been possible,V exoept in very imperfect manner and at a slow speed, to print impressions at intervals rep-vA resented byj the circumference of the cylinder, or aliquot parts thereof, and my objectl is to render it possible to iiiake, at will and with a given cylindei or cylinders, impressions atintervals other than said intervals 'whether'such impressions be in the nature journaled seg-ments, forming less than the complete periphery of the cylinder, ineai'is tor independently rotating each segment at an accelerated speed during part of each rotation, and ineans Jfor varying the length ot the are in which acceleration takes place.

ln my present invention I use two printing Cylinders carrying segmental printing means each adapted toi* a diii'ei'entiated motion during' part ot.' its revolution and set so that the second cylinder will print the blank spaees left by the. First. The driving mechanism drives the printiini` cylinders at a uniform speed during` the printing part of each revolution and may be setso that the irinting' part ot' a revolution be the saine more or less. within the limits oi adliust- I nient of the device. and the remainder of the revolution are made in equal periods of time. A blank is thus left on the paper .This means that they cannot he (l by the first cylinder Whicli'v'niay be lled in by the second cylinder; The paper is driven at a substantially constant 'and iiiiiti'irin speed and as the amount of paper required for two impressions varies with the length of the are in which printing ta place means are provided for lengthening or sliorteningtlie path ot the paper between the two printing cylinders.

Figure l is a side elevation 'of my i.ni provedmachine. Fig. 2 a plan View of the saine. Fig. 3 is a longitiidine.livrer` i il section.. Fig. e is an enlarged cross taken through the driving shaft(l lF g. 5 is an'elevation on the saine scale asliiilg. 4 of? the cam controlling the acceleratingiineaiis. Fig. 6 is a side elevation of parteione voi;

the clutches between the gearing and-the Fig. 'Z `is an elevation. of? fisa detail of partof the accelerating f fear.

n the drawings like letters ofieierence indicate corresponding parts in the y,dirtlerent figures. v. 4

A is the frame of the "machine .suitably shaped to support the diiterent parts., ln the frame are siiitably-jonrnaled tivo print-A ing cylinders B and C. Alinipression cylinders D and Eare joiirnaled respectively in suitable positions relative to the printing eylinders B and C.

F is the drivingshaft. vided with a gear wheel G driving liy nie.; of the gear train Hthe feed rollers l. and ny a gear train J the feed rollers'K. Fin-ripa per L passes between the feed rollers 4l he tween the two cylinders B and l) and the two cylinders C and' lil, thence through feed rollers K. s'long as'tlie shaft F run at constant speed the 'feed of the papery printingeylinders yB and C at a tljtterent. speed during a portion. ofeacli rotation.

' "en f gearingseeured to the driving; A secure this` variable rotary motion printing cylinders l *provide tl` which l will now describe;v and iiodieally accelerates the speed of the cylinders. @n the di. ngisli placed a pair of gear wher these ,gear wheels are giron. neetion with the shaft i." by

This shaft prov tit? itt)- spring actuated free'wheel clutches N, N', which enable the shaft to rotate the said gearsV but also allow the gears to run ahead4 off-theshaft when necessary clutches comprises the part shaft and provided with rollers b movable in Each of these wedge-shaped`recesses ,c formed by notching each fixedv part .at its periphery, so that the Vrollers are enga ed by thel inner peripheries rmedon the gears M, M';I

ofthe rings d Y 'See Figs.- 4 and 6. The bentpsprings e are gage gear pinions suitably held place and engage the [rollers b; and the parts a to press the said rollers toward the smaller ends of the recesses c. These clutches are very effective and act promptly withoutv permitting any slip or lost motion. Suitablyl inned to or otherwise! se- .cured to the gear w eels M, M', are the, disks O, 0': These disks carry'in suitalble guides theshdes P, P', each havinga rack f formed thereon. The rack lon the slides P, P', en Q., See Fig. 7.' Se-l cured to the'spindles g of the pinions Q, Q',

vare theRpinions R, R'. The pinion R eshes the connected gearing the gear M may e "`shaft. So also the slide P may be operatedy to cause the caused'torotate at a higher speed han the shaft F, assuming that at the 'time he disk ,0 carrying the slide P be rotating with the gearI M to rotate faster than the For the purpose of operating the slides P, P', I provide the following mechanism: T, T', are slides suitably carried in guides at each sideof the apparatus. Each slide carries a segmental cam ring h,'whicli is secured to a disk 'i .suably supported, so as to be rotatable in 'the slide T or T' by which it4 is supported. These disks z' are.centrally.cut out for the passage of the shaft F. Each disk i is provided with a slot j engaging a pin k fast on the frame yof the apparatus. The slides T, T', are connected together by across bar Z, which cross bar may be movedy longitudinally on the machine by an adjusting screw m carried by the frame of the apparatus. By adjusting the screw the slides T, T', are moved longitudinally of t e machine and at the same time the cam iings h are rotated in the slides. The slides P, P', are provided With roller projections n passing through slots in the disks O, O', into positions to engage the cam rings h. I will take the operation of the parts at one side only of the apparatus for Ithe purpose. of more definitely describing the operation.

"Referring particularly to Fig. 5 I show different positions of the roller n ofthe adjacent slide P, as ythis projection 1s being carried around bythe disk O'. It will be noted the slideT has Ibeen -advanced so :that

a fixed to the Ythe gear knrrangement it follows that the movement the cam ring is eccentric to ,the shaft F consequently th f projection as it rotates will come into engagement with the camring' at about the point indicated in dotted lines at the right hand,side of the drawing. As this. movement continues it will be seen .that the projection lis graduially drawn in toward the vshaft F until*A the projection escapes from the action ofthe cam ring at the 'poiiit'indicated in dotted lines at the left hand side of 'the drawing. This drawin in of the projection operates the' slide P' which as already described drives the opposite gear M ahead of the'shaft F.l Assoon as the projection n ofthe slide P -has escaped from t e, action of the cam ring h with which it cooperates the projection-p, onithe slide P at the opposite side ofthe machine has engaged the cam ring. L carried by the slide T and the slidelP i operated to cause a movement of ahead of the shaft. From thisv of either gearwheel M, M', during its period of lacceleration. is made in exactly the same time as its movement while rotatingI with the shaft, the relatively stationary controlling'means for causing the acceleration at one side operatingto accelerate the' gear at the-opposite side of the inachine and to return the projection n at the opposite side to a position ready to engage with the cam ring L at its own side of the apparatus.

. I is evident that the arc through" which the acceleration takes place is dependent on. the extent of the inward movement ofthe; projections n, and this depends upon the eccentricity of the cam rings relative to the shaft F. The rotative movement of the cam ring [L is necessary owingto the fact that each projection n must be maintained lunder the control of ,its cooperating cam ring ,until' the projection n at the opposite side is readyl for' engagement with its cooperating cam ring. If the cam! ringsl are concentric withV the shaft the cam rings must be rockedso that each roller n is under control of its cooperating cam ring through an arc'of 180 the shaft.

The features of the gearingv which Iare most important and which need to be clearly understood are the arrangement whereby the printing part of each revolution of each printing cylinder is made in the same period of time asthe non-printing part of the revv olution and the arrangement whereby the.

@sassi operation of one of the accelerating means returns the monsite accelerating means to a condition ready for action in its turn.

will bereadiiy seen7 it is thought, that the drawing inward of one oat the projections n., while theulisk on which it slides is rotating with the shaft., will advance the gear Wheel M or M at the opposite side of the gearing. The second project-ion n at the advancing side is then in its position closest to the au' and the actuation ot the slide Which carries it. by the pinion in. or Q will move the said projection out ready for action in its turn. The outward4 movement et this second projection u on the advancing disk has no retarding edect on the gear Wheel and die" t the iirst mentioned side since the dion H3.

ot .sh-att to 'just the saine extent. as its fiutward movement would tend to retard the r-a'heel and disk at thesaid iirst nienimned side et the gearing, and the two movements being equal and opposite `neutralize one aint-ther.

it is evident that the are et acceleration mustdepend on the extent of the inward movement ot the projections n; and the L in which the acceleration takes place time .'nust depend on the speed at which this ini. movement takes piace. 'tuneore ti t t acceierlning and non-acs et each rotation takes place saine t. the cani rings it must be set so that the desi ed. inward throw is givenwhich is obtained by the 'eccentricity of the can-i rings-and so that each projection n is' wntrnlled by its cam ring only through an arc equivaient to the are in which acceleration is to take place which is secured by havingv suitable proportion of the cam ring ,in position for engagement by the projection. Consequently to vary the arc ot' acceleration while having the acceleration take piace in the same time as the non-accelerating part of .i rotation ot a printing cylinder, tir-o adjustments are necessary the eccentricity of the cam rings must be variable to 'vary the inward throw of the projections IL and at the same time the cam .rings must rotate to vary the arcs ot' engagement with said projections. HOW this is donev has already been clearly described. lt is clear 'then that. for any arc ot' acceleration the time of acceleration set by the adjustment of the cam r I so that the accelerating and .non-:acelerating arcs e. the printing and non-printing parts ot each rotation ot each printing' cylinder) are passed through 1n equal times, Vwhich is essentialto the proper operation. ot' thedevice.

The. gear Wheels M, M', are meshed with gear pinions U', fast on independent shafts if', V", carrying the gears 0 and p. rthe. gear o by ay suitable train oit' gearing g drives the impression cylinder D and print- .r sl: on which it is carried is running aheady To insure M. so as to alternately run at a uniformspeed during part of each revolution and lat an accelerated speed during the remainder of each revolution. .The printing cylinders will be provided With segmental stereotypes or other printingmeans so placed thatthe printing impression of each printing cylinder willl take place during such time as it'is moving at its uniformspeedv which will from the mechanism described necessarily be at the same rate of speed as the travel of the paper. The impressions of the cylinders as the machine is arranged will also take place alternately, one` print-ing` While the other is missing. The printing cylinders are also properly spaced so that their impressions will alternate on the paper fed through the machine. 4lt follows that as the arc through which the printing movement of each printing cylinder takes place may be varied, and as the accelerated motion takes place in the same space of time as the normal motion of rotation it follows that when the accelerating arc is large and the printing arcsmall smaller printing plates may be employed, and that the impressions of each printing cylinder will he shorter in length and follow Aat shorter intervals... Consequently, in order that thesecond printing cylinder "may accurately fill in the gaps lett by t-he other print-ing cylinder it is necessary that there shall be more or less paper between the two printing cylinders according to the adjustment of the machine. I make this adjustment by causing the paper to follow a longer or shorterpath as may 'be necessary. Forthis purpose I provide a stationary guide roller s journaled on the frame of the machine and a movable guide roller This movable guide roller is journaled in slides u suitably guided at opposite sides of the machine. Each slide is formed as a rack and these racks are engaged by pinions o fast on a spindle fw journaled on the frame of the machine and provided with a crank handle a. The clamping screws are preferably provided for holding the slides yu as adjusted.

The. mechanism described I liud etten-tively accomplishes the object oit' my invention. The printing cylix'xders rotate at a uniform speed during the printing part of each rotation, and consequently they cooperate satisfactorily with thel paper, which can only successfully be fed at a unitorinrate ofA vide any means for varying `the rate of feed of the paper andthe output ofthe niachine in any superficial areav of printed surface will remain substantially the same at all adjustments. This is omethi'ng not heretofore accomplished. as far as I am aware., The impression Icylinders also being geared to the printing cylinders revolve synchronously therewithand thusthejys'ain'ev part of an' im! lo pressionl cylinder-willi ways cooperate with p a given partof one of .the printing segments. This is important lin p nting as it is usually necessary to pad certain'- portions of [the ini- -pression rollers to prodrficeniniform imprints. It will -befunderstood that `instead of stereotypes or el'eotrotypes thatperforating; di- `viding or other impression devices may be employed. y

lVh t I claim as my invention is l. n a. rotary printing press rotary print ing` means formingla segment bf a cylinder in combination'with means for driying said printing means'at a uniform speed durin the printing part of each rotation and at a di ferent speed during the non-printing part of eachA rotation; and means for varying the ,length of the are in which printing takes place without varying the speed during lprinting which remains relatively constant Ifor all settings of he device. A

9,. In a rotary p intiiig press rotary printing means forming a segment'of a cylinder inlconibination with means fdr driving said printing means at a uniform vspeed. during the printing part of each lrotation' and at a. different speed during the non-printing part of each rotation; and means for varying the length of the are in which printing takes place without varying theA speed dur-A ing printing, which remains relatively eonstant for all vsettings of theV device, the driving and adjusting means beingarranged to cause the noiipri'nting'part of eaehrotation at any give i setting to take place in the same length of time as the printing part of the rotation.

3. In a rotary printing press the'combination of segeinental rotary printing means; paper feeding means; a shaft; gearing between the paper feeding. means and the shaft; gearing between the printing means and thel shaft rotating the 'printing means ,at the same speedas the shaft during the printing part of each rotation; and means for driving the printing means at a different speedduring the non-'printing `part of each rotation.

4. In a rotary printing press the combi-l nation of segmental rotary printing means; paper feeding-means; a shaft; gearing between the paper feeding means and the shaft: gearing between the printing means andthe shaft rotating the printing meansY at the saine speed as the shaft during the 55 printing pa'rt of each rotation; means for speed during the non-printingpart of each rotation; and means for, varying the length of the are inV which printing Itakes place.

v 5. In a. rotary printing press the combina tion of segmental rotary printing palper feeding means; a shaft; gearing between the paper feeding vmeans and the s haft; gearing between the printingmeans yand the shaft rotatingthe printing means at the same speed as the shaft' during the printing ,part of each rotation.;..means for driving the` printing means at a different vspeed during the non-printingpart of each rotation; and an impression cylinder geared ehronism therewith.

I nation ofl rotary printingfnieans forming a segment of a cylinder; paper feeding'means operating at a luniforin speed; means for driving the printing means at the saine speed as the paper during the printing part of each rotation'and ata dili'erentY speed during the non-printing part of each rota? tion; and means for varying the` are in which -printing takes place without varying 'the speed.

7. In a rotary printing press the combinat'ion'of rotary printing means foi'miiig a segment of a cylinder; paper feeding 'means operating at a uniform. speed; means for driving the printing means at the same speed as the paper during the printing part of each rotation and at a different speed during the non-printing part 'of each rotation; and means 4for varying' the are in which the yprinting takes place without varying the speed, the driving and adjustable means being adapted to eause the non-printing part of each rotation to take place in the same length of time'as the printing part of the rotation.

S. In a rotary printing press a plurality of independent. segmental rotary printing" means, in combination with means for driving each of said printing means arranged to rotate the print-ing means. during the nonprinting part of each rotation, at a diti'eiei'it speed from the speed during'the .printing part of each rotation, the driving means' lieing also arranged to Cause impressions' of the printing means to alternate.

9. In a rotary lprintingpress a pluralittiv of independent segmental rotaryprinting means, in combination with means for driving each of said printing means arranged to rotate the printing' ineansduring the nonprinting part of each rotation at a different speed from the lspeed'duringthe printing pai-t of earh rotation.. the driving means being also arranged to Cause impressionant the printing means to alternate and to rause the non-printing part of each rotation of each printing means to take place in the drivihgthe printingmeans'at a different means;

withA the printing cylinder to rotate in syn- 6. Ina rotary printingv press the combiesegesi speeddnring the printing part of each rotar tion and at a differentspeed mirino" the non- 'printing part of each rotation, the driving means being arranged to cause the impressions of the printing` means to alternate.

l1. vIn' a rotary printing press a plurality 'of independentsegmental rotary printing means, in combination With means for driving each of said printing means arranged to rotate the printing means during the nony printing part of each rotation at a different speed from the speed during the printing part of 'each rotation, the .LA in@ means being also arranged to canse the impressions of l the printing means to alternate; and means for varying the length of the are in eaeh printing means in which printing takes place.

12.4In va rotaryr printing press a plurality of segmental rotary printing means, in com bination with means for driving each of said printing means at a uniform speed during the printing part of each rotation and at a different speed during the non-printing part of each rotation, the driving ineansbeling arranged to cause the impressions of the printing means to alternate; and means for varying the length of the arc in each printing means in which printing takes place.

13. In a rotary printing press a plurality of independent segmental rotary printing means, in Combination with means for driving each of said printing means at a uniform speed during the printing part of each rotation and at a ditlerent speedV during the non-printing part of eaeh rotation, the driv ing means being arranged to transe the impressions of theprinting means to alternate: and means for 'varying the length of the are 'in each rnfintingmeans in ivnieh printing y takes place without- Jarying the speed during priiiting which remains relatively eonstant for all settings of the device.

ll. ln a rotary printing press a plurality of independent segmental rotary printing means. in combination with means for drivin.;r each of said printing means at a uni forni speed during the printing part of each iotation and at a ditl'erent speed during the non-printing part of each rotation, the drivinomeans being arranged to rause the impressions of the printing means to alternate; and ineans for varying the length ot the are in each printiiig means in which printii'ig rause the non-printing parts of earh rotation of eaeh printing means at any given setting to take place in the same vlength of time as the printing part of the rotation.

15. In a rotary printing press a plurality of independent segmental rotary printing means, in combination with means for driving each of said printing means, arranged to rotate the printing means, during the nonprnting part of each rot-ation; at a dierent speed from the speed during the-printing part of eaeh rotation, the driving means beg, ing arranged to cause tli'e impressioirs of thel printing means to alternate; means for vvarying the length of the are in each printing means in which printing takesplaee; .paper feeding means; 'and means for Varying the length of the path of the paper between the two printing means. y

16. In a rotary printing press a plurality of independent segmental rotary printing means, in combination with means lfor'driving each of said printing means Iat a uniform speed during the printing partof each rotation and at a different speed during the non-printing part of eaoh rotation the driving means being arranged to cause the impressions of the printing means to alternate; means for Varying the length of the are in Ieach printing means in which acceleration takes place; paper feeding means; and means for varying the length of the'path of theA paper between the printing means.

17. In a rotary printing press 'provided with rotatable printing means, means, for

imparting a variable rotary motion to the 100 for aceelerating the gearing during part of each rotation to run ahead of the shaft.

` 18. In a rotary printing press provided with rotatable printing means, means for iniparting a variable rotary motion to the printing means comprising a shaft; gearing ,110

between said shaft and the printing means; a free wheel clutch driving conneetion between the shaft and the gearing; and means rotating with the'gearing for accelerating the gearing during vpart of each rotation tov run ahead of the shaft; and relatively sta-` tionary means controlling the niovenients of the accelerating means.

19. In a rotary printing press provided with rotatable printing means, means fer 129 in'iparting a variable rotary motion to the printing means comprising a shaft; gearing between said shaft and the printing means, a 'free Wheel clutch drivin g connection between the shaft and the gearing; means rotating 12 with the gearing for aeeeleratiiig 'the gearing during part of each rotation to run ahead of the shaft; and adpistable relatively stationary means controlling the movements of' l o the accelerating means.

nation of paper 20. In a rotary rinting press the .combiprinting means; a shaft geared to the'l paper eeding means; geari ncl the printing means; a free wheel clutch between the shaft driving connection between the shaft and the gearing; vmeans rotating with the gearing for rotation'to run ahead of the sha and relatively stationary means for controlling the ccelerating the gearing during art of each m'ovements of the aceele'natingmeans.

.l 21. In a rotary 'printing press the co'mbi-y nation ofy paper eeding means; rotatablev printing means; gearing vbetween the shaft nd the printing means; a free Wheel clutbh eeding means; rotatablev driving Vconnection between tbe shaft and the means for ail'jsting the controlling' means. p

to vary takes`p1ace.

Toronto thls 21 December, 1908.

.- LOUIS. HUFEMAN;

Signedin the presence of- D. S. "IovELL,

E. Mainarda.l

'the are 1through which acceleration(

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