US1226649A - Multiple copying-machine. - Google Patents

Description

1.1. FLAN'IGAN. MULTIPLE'COPYING MACHINE. APPLICATION FILED MAY ZI, I9l6 Patented May 22, 1917.

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APPLICATION FILED MAY 21, I916.

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- 1.1. FLANIGAN. MULTIPLE COPYING MACI'HNE- APPLICATION FILED IAY ZI IQIG- 1,226,649. v Patented Ma 22,1917.

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MULTIPLE caramel-mama.

Application me m 21, 1a 1a. Serial No. moms;

a duplicating band or apron stretched thereover, and. a removable impression device including a platen roll that is normally rolled over the bed in order to impress both the master sheet and the copy sheets on the gelatin apron that is supported by the bed.

My present improvements relate more particularly to an impression device of that type W'l'illCl'l employs a pair of paper gripping rolls that are separated to permit the introduction of one end of a paper sheet between them, and. one of which rolls is then lowered,'carrying the end of the paper sheet with it, into rolling contact with the duplicating band or surface to roll over and impress the paper sheet on the latter, thus constituting a platen roll. I'leretofore, so far I am aware, in platencarriages of this type, it has been customary'to mount the spring-pressed gripping'rol] of this pair in a, carriage frame that is slidable over the bed of the machine, and to mount the platen roll in and be en the anus of a bail-shaped yoke that i. is pivoted. in and swings rel atively to the carriage frame. A leading object of i'ny i)resent invention is to simplify and chcapen this construction by doing away with the pivoted yoke that carries the platen roll. mounting the latter directly in the tra e of the "carriage, mounting the springprL lv gripping roll with capacity for lmdily l uerul n'ui'ivcment 1n the carriage tram r providing fulcrum pomts and cam dc ices on the bed irameof the machine for cooperation with the platen carriage and the spindles of the two rolls so that, on tilt ing or swinging the platen carriage in one direction the two rolls may be bodily sepa? rated to allow the introduction of the paper sheet, and on tilting or swinging the platen arriage in the opp site direction the two rolls may grip the paper sheetand carry the latter, in properlysquared or alined osition, down onto the printing 1 bed. minor objects and advantages of the invention will be a parent to those skilled in the art from the ollowing description taken in connection with the accompanying drawings, forming a part of this specification, in which Figure 1 is a top plan view showing the platen carriage in starting osition at the head end of the machine, an i a sheet of paper introduced therein;

Fig. 2 is a longitudinal section taken on the line 22 of Fig. 1 a

Fig. 3 is a fragmentary side elevationshowing the platen carriageand the cooperating'stationary devices atthe head end of the machine for-efiecting the positioning of the platen carriage and the opening of the rolls for the introductionof the paper sheet; Fig. 4: is a detail vertical longltudinal section through thehead end of the bed and the platen carriage, showing the latter part-way advanced over the bed in the operation of rolling out a paper sheet thereon;

Fig. 5 is a side elevation of the parts appearing in Fig. 4, also showing the platen carriage in dotted lines in its initial or startingposition Fig. 6 is a sectional detail on the line 6-4) of Fig. 5, showing a brake applied'to the platen roll to prevent it from turning on its own axis until the paper sheet has been brought by it into contact with the printing bed;

Fig. 7 is a detail sectional view on the line turned down to form legs 12 and are secured to the plates by bolts or rivets 13. 14 desher ignates each of a pair of distance rods that rigidly connect and space the upper portions of the side plates 10 above the cross bars 11,

and form supports for a removable bed plate 15. and i, has attached to its opposite sides near This latter, as is best shown in Figs. 3'

chine frame by raising its forward end until its front end a pair of upstanding plates 16, each formed with an inwardly extendin horizontal attachment member 17 by whic it is'secured to the bed late '15 through screws or rivets 18, and a epending bracket 19 having a vertical slot by which the bracket straddles and rests upon the forward distance rod 14. To the opposite sides of the bed late 15 near its rear end are similarly attac ed depending brackets 21 that are horizontally forked or slotted, as shown at 22, to engage and rest upon the rear distance rod 14 under a horizontal sliding vmovement. The bed plate 15 carrying the 'de plates 16 and inte ral supporting rackets19 may be remove from t e mathe brackets 19 clear the forward distance rod 14, and then, by a slight forward movement, the rear brackets 21 are drawn clear of the rear distance rod 14. The bed plate is put in place by the converse of these opcrations performed in'the inverse order in a manner readily understood. The bed plate is preferably furnished with a cloth covering 23 stretched thereover and'suitably secured thereto; and the bed plate and its attached may readily be tilted up on its rear brackets 21 and the rear distance rod 14, operating as a hinge, to permit access to an underlying storage receptacle 24 su ported in straps or ban ers 25 between t e side plates 10 of'the mac ine frame.

Over the bed plate is stretched the usual gelatin duplicating apron or band 26, the end portions of which are wound on a pair of duplicate spools 27, one of which is located at the head end of the machine and constitutes the receiving spool while the other is located at the tail end of the machine and constitutes the delive spool. When the band has been exhauste from the delivery spool and wound up on the receivin spool the two is may be'removed an interdhanged and the band is then; rewound in the-same direction, or the spools may be left in place and the band rewound in the reverse direction.

The parts thus far described, with the exception of the vertical plates 16 hereinafter more particularlv described, are substantiallyiidentical with parts shown, described and claimed in my former Patent No. 1,197,617, dated Sept. 12, 1916; and as the specific structural etails of these parts are not concerned with my present invention,

- they need not be more fully described herein.

tion, my

As stated in the preamble of this specificapresent improvements have to do more particularly with a novel construction ofv impression device and cooperating sta tionary devices represented by the plates 16. for positioning the platen carriage and ef- P fectmg and controllin the opening and movements, of the rolls, whereby I um enabled to dispense with the employment of a pivoted hand le-operated yoke in the carriage frame for raising and lowering the platen roll.

Referringnow uiore particularly to the novel features wherein. my present invention resides, 28 and 29 designate the side frame is journuled the platen roll 34, on the ends of which are projecting spindles 35 that cooperate with substantially vertical slots 36 formed in the lower sides of the stationary plates 16 in a manner hereinafter more fully described. ()n the inner sides of the side bars 30 of the carriage frame are pivoted at 37 a pair of sector-shaped arms 38, in slot bearings 39 of which is mounted the gripping roll 40 that lies'in parallelism with the platen roll 34; said gripping, roll also being provided at its ends with spindles 41 which coiiperate withcam surfaces 42 and notches 43 formed in thepla'tes 16in the manner hereinafter described. gripping roll 40 is normally pressed toward The the lower ends ofvits beuringslots 39 by springs 44 in order to insure a proper grip-- ping action on the paper when tne'gripping 'roll is permitted to move toward the platen .roll in the operation of carrying the head end of thesheet down-onto the printing bed. The arms 38 are normally urged in a direction to carry the gripping roll to Ward the platen roll by means oftensile springs 45 connected at one end to the upper corners of the arms 38 and at the other end to lugs on the side bar 29 of the carriage frame. The extent of swinging movement of the arms-38 is limited in one direction b the engagement of a shoulder 46 on the ower edge of the arm 38 with a stop pin 47 carried by the end bar 30 of the carriage frame and in theother direction by the engagement of a similar shoulder 48 with the same stop pin. ()n the inner that engage notches 50 in the lower edges of the and bars 30 of the carriage frame to facilitate tiltin or rocking of the latter.

'Pivoted on the gulcrum pins 49 are a pair of arms 51 which support at and between their free ends an angle-shaped gage-bzrrifii'. that normally lies directly across the head end of the printing bed and serves to square the end edge of the paper sheet 33 when it is introduced into the impression device in the manner clearly shown in Fig. 2. The

pivoted supper ing armsfil of the gage-bar are supported normalor working position by pins 53in the inner sides of the plates 16, -as clearly shown in Fig. 2.

1 It, will ,be observed .that the entire im- -pression device may be bodily applied to ho'ivn in Figs. 2 and 3. During this move ment th 1 projecting, spindles of the platen no ll move up into engagement with the closed ends oi the slots 3'6, therehy lim iti ng the extent of tilting movement "of the frame and'preventin'g forward" or"backward l movementof the latterwhile in this position. At 0 same time the projecting spindles 41 0 the gripping roll ride over the inclined orcam smfaee's 42 again'st the pull of thesprings 45 until said spindles pass 'tl-iefroung'led ends of the cams 42 and fall fihtorthje'iiotehes 43 underthe tension of the.

spf'ings F15. The engagement of the spindles 41. with the notches 43 under the "ten- L siqn, of the springs 45 serves to hold the im- [press-ion, devJ'cein this position while the paperj sheet 33 is entered over the chute 32 between the separated rolls 3 k and and into engagement with the gage-bar 52-, all 'jas clesirly shown in Fig.2. The operator then grasps the handle 31 and, while holding the frame engaged with the fulcr nn pins 49'. tiltsthe frame down in the posisoon"as the spindles 41 of the gripping. If'oll have. passed out of the notehes lfl a'n'dpnth,

[ Huge-frame carries the grlppl'ng'roll ward the platen roll and pinchestti'e paper 7 sheet-between them under the actlon'of both urging said rolls townrdfeach other, and, co-

the springs 44 and As shown in F i s.

i and ithe slot hearing of the spindle of" m" 'ppin-gi-roll is made of .suliicient length'to usuro the gu-tionof the springs 44 to prdss thetwo rolls Into rolling contact with ear h 'l 'ell\veeu the two rolls het'ore the plrito'u roll has been lowered into contact with the, lief 1,1

securelyheld 'a-gzjainst angular displaceme'jt both" by the rolls 'a-url the gage-hm. Duriiig this finalmovement thelplnten r'oll 4 is n-i rm-:o from rota-tingbatikwardly (in t'he parts' assume the relative positions hon-indicated by dotted l-incsin' Fig. As"

said roll's u ndena tilting frame.

combination with. a printin support therefor. of arie-lmp ither- -or with the paper sheet iuterpos l phi-tween lheu The paper is thus grippold end lot-the sheet down onto the liedwhlle its j axis and thus drawing "the; forward edge of the sheet away from the a e-bar by a brake-disk 54 (Fig. '6) carrie y a. spnn arm 55 that is attached to one of the. en

bars 3001? the platen frame. This feature, h0wever,for1ns a part of the invention disclosed in m above identi ed, and isnot claimed herein. As soon as the platen. roll has pressed the end of the paper sheet onto' the rinting surface the handle 31 is raised $11 ciently to clear the notches 50 from the fulcrum pins 41!), whereupon the entireimpression' device, freed from its positioning imd rollfqrmer application, herein controlling devices at the head en'dof'the.

machine, may he pushed forward, as indieated in Fig. 5, thus impressing'the entire sheeton the printing surface...

' It is believed that the'foregoin description will make clear to those sl'ril ed i-n the art the novel structural features of, and the improvements and advantages secured by, the invention withoutnecessitating further detailed description. Manifestly, the details of striu-t'ure-aml arrangement may be more or less .varied without involving any departure from the principle of the inven tion, and hence I reserve all such detail changes and modifications as may fairly fall within the spirit and purview of the a.ppended claims. 1

I claim: w

1. In a multiple copying machine, the combination with a printing surface and a support thereforpof an impression device movable over said printingsurface andcomprism 'atiltahle frame. a pair of rolls carried thereby, and spring means normally urging said. rolls toward each other, and cos operating devices on said supp anthem of said rolls, respectively, to ,sepnri1te milv ints h "face and a. Jssitmdevice movable over said printing surf ,e and comp'risinn' u tiltahle frame, a-peir'ofrrlfllsi carried therehy. and. sp'ringmeans normally" 2. In; a "multiple eopyin operating devices on said supportjnnd one-0f v said rolls, respectively. serving tosepumte.

said rolls under a tilting movement of snid frame and hold the latter in tilted position for the intrmluetiou of a paper sl |eetl' )etween 1 combination with a priutingsuriace and. a} support therefor, of an"'-unpress10n device '7 mounted 'for lateral movement In shill frame.

and spring means normally urging said gigripl'iiiue roll. into contai-t with said platen roll, and cooperating devices on saidwslm-v pping roll, respectively, a tilting movable over said printing surface and cmprising a tiltable platen frame, aplaten roll journaled in said frame, a gripping roll mounted for lateral movement in said frame and having spindle extensions beyond the ends of said frame, spring meansapormally urging said gripping roll into contact with said platen roll, and stationary members lo-- cated at the opposite sides of the head end of said printing surface and formed with. cam surfaces engaging the spindle extensions of v said gripping rol to separate said rolls under a tilting movement of said frame.

5. In a multiple copying machine, the combination with a printing surface and a support therefor, of an impression device movable over said printing surface and comprising a tiltable platen frame, a platen roll journaled in said frame, a gripping roll mounted for lateral movement in said frame and having spindle extensions beyond the ends of said frame, spring means normally urging said gripping roll into contact with said platen roll, and stationary members located at the opposite sides of the head end of said printing surface and formed with cam surfaces engaging the spindle extensions of said gripping roll to separate said. rolls under a tilting movement of said frame, and also formed with notches beyond said cam. surfaces to seat said spindle extensions and hold said frame in tilted position withthe rolls separated for the reception of a paper sheet between them.

-(l. ln a multiple coyping machine, the fiffill'lbllllltlfill with a printing surface and a. support therefor, of an impression device movable over said printing surface and comprising a substantially rectangular tiltable frame, a pair of rolls carried thereby, and

' spring means normally urging said rolls toward each other, stationary members located at the opposite sides of the head end of said printing surface and provided with fulcrum bearings adapted to engage the end members of said frame, a. handle on said frame, and cooperating means on said stationary mem bers and one of saidrolls, respectively, serving, whensaid frame is tilted on said ful- -um hearings, to effect a separation of said 7 rolls.

7. In .a multiple copying machine, the combination with a printing surface and a support therefor, of a substantially rectangular tiltable platen frame movable over said printing surface, a platen roll journaled in and between the end members of said frame and formed with spindle extensions beyond said end members, a gripping roll mounted.

for lateral movement in said franie and'also formed with spindle extensions beyond said end members of the frame, spring means nor mally urging said gripping roll into contact with said p aten roll, a pair of-upstanding bracket plates located at the respectively, of the head end ing surface and provided with slots to enopposite sides, of said prints gage the spindle extensions of the platen roll,

cam surfaces to engage. the spindle exten said cam surfaces to seat said gri )pin spindle extensions m operating i said platen frame, said bracket lates the end mem am e on ers of said platen frame to efe and fulcrum bearings on adapted to cooperate withfsq fect tilting of the latter and the separation of said rolls.

8. In a multiple copying machine, the

operating devices on said support and one of said rolls, respectively, serving to separate 'said rolls under a tilting movement of. said located opposite the frame, and a gage-bar head end of said printing surface.

9 Ina multiple copying machine,

combination with a printin surface and a support therefor, of a tiitabe platen frame.

movable over said printing surface, a pair of rolls carried by said platen frame mount edfwith capacit for lateral movement relaa pair of rolls can and sprlng means normally tively to each 0t ier and formed with spindle extensions, spring means normally said rolls toward each other, a pair of upstanding bracket plates located at the '0 'posite sides, respect1ve1y, of the head en crum bearlngs for tilting said frame and with means cooperating with said 5 extensions to separate said rolls an said when tilted to a sheet, and a gage-bar pivotally mounted'on and between said bracket plates opposite the head end ofsaid printing surface.

10. In an impression device for multi le copying machines, the combination 0 a manually operated tiltableplaten frame, Ill operating handle rigidly connected to said frame, a platen roll'mounted directly. and rigidly in' opposite members of said frame, a paper gripping roll carried bsaid frame and mountedwith capacity for ateral movement toward and from sald platen roll,'-and lock spring means normally urging said grippingrectangular platen frame, an operating platen frame against bodily' movement position toreceive apaperurging *o I. said printing surface and provided with ft indlO.

sions of the gripping roll, and notches beyond roll handle mounted on one of the sidebars of said frame, a platen roll mounted directly and rigidly in the and bars of said frame, a pair of arms pivoted to the end bars of said frame, a gripping roll journaled in and between said arms, and spring meansacting on saidarms to normally urge said gripping roll toward said platen roll.

'said elongated bearings, springs normally urging the bearing portions of said gripping roll toward one end of said elongated bean ings, and other springs acting on said arms to normally urge said gripping roll toward said platen roll.

13. In animpression device for multiple copyin machines, the combination of a substantia 1y rectangular platen frame, an op erating handle mounted on one of the side bars of said frame, a platen roll journaled in and between the end bars of said frame a air of arms pivoted to the end bars .of

sald frame and formed with elongated bearings, a gripping roll, journaled in and between said elongated hearings-"springs normally urging the ,bearing;;p0rtions of said gripping roll toward one end of said elongated bearings, other springs acting on said arms to'normally urge said gripping roll toward said platen roll, and stop devices 'limiting the swing of said arms in both directions. p 14. In an impression device for multiple copying machines, the combination of a substantially rectangular platen frame, an operating handle'rigidly mounted on one of the side bars ofsaid frame, a platen roll mounted directly and rigidly in the end bars of said frame, a paper gripping roll carried by said frame parallel with said platen roll and mounted with capacity for lateral movement toward and from the latter, spring -means normally urging said gripping roll toward said platen roll, and a paper guide mounted on the other side bar of said frame.

JOHN J. FLANIGAN.

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