US2563149A

US2563149A - Carbon sheet supporting device

Info

Publication number: US2563149A
Application number: US33305A
Authority: US
Inventors: Walter A Anderson
Original assignee: Underwood Corp
Current assignee: Underwood Corp
Priority date: 1946-06-27
Filing date: 1948-06-16
Publication date: 1951-08-07
Anticipated expiration: 1968-08-07
Also published as: US2536524A; US2536525A; CH266928A; GB675466A; FR1015393A; DE901006C; US2630900A

Description

Aug 7, i951 w. A. ANDERSON CARBON SHEET SUPPORTING DEVICE Original Filed June 2'?,l 1946 2 sheets-shea 1 Aug. 7, 1951 w. A. ANDERSON CARBON SHEET SUPPORTING DEVICE 2 Sheets-Shee 2 Original Filed June 27, 1946 4. Maz;

TT/P/Vfy Patented ug. 7, i951 Y 2,563,149 K -cAEeoN SHEET SUPPORTING DEvrcE Walter A. Anderson, Bridgeport, Conn., assignor to Underwood Corporation,` New York, N. Y., a

corporation of Delaware original application June 27, 194,6, serial No,

679,722, now Patent No. 2,536,524, dated January 2, 1951. Divided and this application June 16, 1948, Serial No. 33,305

8 Claims.

' This invention is a division of application No. 679,722, filed June 27, 1946, now Patent No. 2,536,524, dated January 2, 1951, andrelatesto carbon-sheet anchorage provision in business machines, particularly also to such provision in to one line.

thereof.

bon.

association with facilities for front-feeding Workis. readily and conveniently applicable and resheets into printing vposition in iront of a platen. movable from the machine. Preparation of certain business papers or rec- In addition to the above Specifically notedk obords .calls in many instances for front-insertion jects, there are other objects r,whiclfi'in part are of a" work-sheet in a position behind a forelo obvious and in part are'vpointed out asthedemost, front-inserted sheet, for receiving busi- Scription of the preferred embodiment of the ness entries, such entries being usually limited invention proceeds. n f

The work-sheet behind the fore- Y Referring now'to'the drawings: most 'work-sheet' must receive its imprints i Figure 1 is a fragmentary right-hand side elethrough a transfer or carbon-sheet in front l5 vation of a Sundstrand Accounting MachineV carnage, embodying the front-feed facilities dis v'I'o 'reduce the handling of such carbon-sheet closed in said application No. 679,722, all Dar-ts toa minimum during the preparation of a sucbeing shown in theirV normal positions, cession of records or bills, it isof advantage to n Figure 2 is a-n enlarged sectional yView of a support or retain it on the machine, if provision Carbonfsheet anchorage bar, and an associated is also` made which will facilitate conveniently clip, Y front-feeding of the vnecessary work-sheets. Figure 3 is a sectional side elevation of the It is therefore an object of the present invencarriage shown in Figure 1, showing also a fragtion to provide for carbon-sheet support in admentary representation of a ca-rbon-sheet anvantageous cooperative association with efficient chorage device, all parts being in their normal facilities for front-feeding a work-sheet in front relations, y and a work-sheet in back of the supported car- Figure 4 shows in frontal aspect a portion of the carbon-sheet anchorage bar seen in Figure 2, It is a further object to provide an etcient Fgure is a right-hand fragmentary'sectional carbon-sheet supporting or anchoring device side elevation, illustrating the front-feed device which vis movable from a retired, carbon-sheet in Closed, sheet-holding position, together with tightening, to a carbon-sheet slackening position, the CalbOIl-Sheet Supporting feature 0f the 111- for facilitating substantially resistanceless frontvention, feeding of a work-sheet behind the supported Figure 6 is a front perspective illustration of carbon-sheet and without carbon-smudging, in the carbon-sheet anchorage fixture or attachcombination with an advantageously mounted ment, vand nlally,v frontffeed table having a path of movement be- Figure 7 is a View similar to Figure 5, but tween a retired and a'front-feed position which showingthe front-feed device and carbon-sheet is different and independent of saidV device. anchorage device in sheet-receiving position.

Y 1t is also an object to 'produce an efficient an- 40 Only so much of said front-feedfacilities are chorage` deviceV for the leading end4 of" a carbonshown and described( herein as are thought necsheet, such device being capable of carbon-sheet essary inthe presently featured invention. I -lowslackening movement automatically in coordiever, reference may be had to said prior applination with the conditioning movement of frontcation, if such 'is necessary rfor an understanding feeding facilities for a work-sheet tobe frontof the invention. y 1 fed in front of the anchored carbon. Referring now particularly to Figures land 3,

In association with the foregoing objects, it is the machine Lcomprises a paper-supporting cara further object to provide for movement of `a riage 2, comprising two spaced Lside-,walls lll carbon-sheet anchorage device from a normal to n between which a platen 'l is turnably accommoa displacedposition, not only for the purposeof 5o dated for paper-.feeding control, in a convenslackening the carbon-sheet, but also to make. tional manner. The side-walls .lll of the carpossible a more favorable angle for front-feedriage are rigid-ly interconnected jby means in-k ing a work-sheet therebehind, wherefore a workeluding rail bars H3, li ill, between which there sheety ,Se iront-fed requires also nless flexing f isetrack Structure 11.6 constituting, partei main frame-work of the machine and cooperataround the platen.

Another object -isfto provide an 'efficint anchorage device for the leading end of a carbon-V sheet. ,A still further object is to provide a carbonsheet anchorage device of simple structure which ingv through the medium of anti-friction elements H6 with the rail bars H3, ||4 to provide guidance for the carriage. The parts ||3,- H4 and ||6 are all disposed to accommodate lowslung guiding means for eilcient front-feeding of work-sheets, as will become evident later. Both end-plates of the carriage have flanged side covers indicated at |Ha in Figure 1.

Usually accounting machines are required to,

hold a minimum of one journal or record sheet,.

and a minimum of one ledger or statement sheet. In Figure 3 a record sheet is designated by .the reference character R, and a statement sheet by the reference character S. The record sheet R, see Figure 3, is rear-fed and receives a carbon record of entries made upon successively front-` fed statement sheets, therebeing a carbon-sheet, not shown, inserted therewith. The statement sheet S is front-fed because it requires very frequent handling, whereas the record sheets do not;

Record sheet holding and feeding devices Feed-rolls |34 bear normally resiliently upon the rear-side of the platen 1, below the level of a platen shaft H2, and other feed-rolls |35 bear normally upon the top-side of the platen, all to hold a record sheet R in typing position on the platen. Above the feed-rolls |34, extending between the carriage ends and inclined rearwardly, there is a sheet-supporting table |36 rigidly fastenedto the carriage ends |||.v The record sheet R is fed downwardly in front of said table |36, and rolled between said feed-rolls |34 and the platen, forwardly and upwardly, by turning the platen 1.

The bottom feed-rolls |34, of which there are a series alongside of each other, are supported on levers |56 pivoted upon a common pivot rod |51 that iscarried by a web |58 on the carriage. A cam shaft |6| is provided for cooperation with the levers |56 to cast the feed-rolls |34 a small distance from the platen. The means for turning the shaft is not shown. The feed-roll supporting-levers |56 have tapered tongues |63 reaching forwardly from the feed-rolls |34 in slightly spaced relationship to the platen, such tongues being instrumental to guide rear-fed sheets, such as the record sheets R, in a curved path around the underside of the platen.

Front-feed table and throat Figures 3 and 5 show a statement sheet S in position for receiving imprints from types I0. Paper-holding means in the form of feed-rolls |68 bear against the front-bottom side of the platen 1 to hold said statement sheet and also to assist in holding and feeding other sheets on the platen. Above the typing line, which is directly at the front side of the platen, a frontfeed guide or table |10, preferably of transparent material, bears rearwardly against the statement sheet S. With the front-feed table |10 in the position described, the type-bars |0 can rise freely for making the appropriate typing impressions. Usually after a single line-entry the statement sheet S is removed and another is Y k4v presented, the record sheet R remaining in the machine and being line-spaced in a usual manner by a turning movement of the platen.

As illustrated in Figure '1, in order to facilitate removal of one statement sheet S, and the introduction of another initsvplace, the paperholding means or feed-rolls |68 are cast olf the platen 1 to provide a wide-open front-feed throat, and the front-feed table |10 is displaced to a forwardly tilted position.

The transparent front-feed table |10 may .be co-extensivein length with the platen, and is secured along its upper margin to a stiff bar |1|.

.The bar |1| is carried at the opposite ends of the carriage by plates |13 which are pivoted to the adjacent side-walls of the carriage by means of pivot studs 14 which are located on an axis that lies parallel, to the rear and below the platen axis. Said pivot studs |14 render the front-feed table movable between a normal, retired position in back of the types I0, see Figures 1, 3 and 5, to a front-feed position seen in Figure '7.

Said feed-rolls |68 extend in a row along the platen and each is rotatively supported by two spaced arms |15 carried swingably upon a supporting shaft |16. Brackets |18 afford bearing supports for the shaft |16 and springs |11 associated with the arms |15 urge the latter, and thus the feed-rolls |68, constantly towards the platen. The feed-rolls |66 are released by a. rocking motion given the shaft |16 whenever the carriagek is conditioned for front-feeding, in a manner to be stated later.

The sheet S which is front-fed down between the platen and the feed-rolls 68, see Figure '1, take a wide sweep rearwardly below the tapered tongues |63 extending forwardly from the rear feed-rolls |34. Such wide sweep is given the sheets` by guiding elements |85, see Figures 5 and 7, situated between the feed-rolls |68, and below which the latter withdraw when released. The said Vguiding elements are augmented in their function by a paper shelf |06, which has a slight upward tilt to the rear. Spaced deilector elements |92, embodying narrow sheet-denecting shelves |92a at circumferentially reduced intermediate parts of the individual feed-rolls |68, are nested closely to the platen when said feed-rolls |68 are in applied position, but move an appreciable distance from the platen when the feed-rolls are cast off, that is when the carriage is conditioned for front-feeding worksheets as seen in Figure 1. During the release of said feed-rolls |68 the deilector elements |92 will all be moved downwardly by the engagement of the lower part of the reduced feed-roll sections therewith, but downward movement commences only after the feed-rolls have withdrawn below the deflector shelves |926.

Thus it will be seen that a work-sheet S is introduceable with ease into the open front-feed throat. See Figure 7.

Manual front-feed conditioning The front-feed table |10 and the feed-rolls |68, see Figure 1, are movable to front-feed position by an operating handle |95, carried on a composite slide structure generally designated by the numeral |66, and consisting of a flat stampedout slide |91 having a stitfening angle member |98 riveted to the former as indicated at 200. The composite slide |96 is carried upon the right side-wall of the carriage, slightly spaced therefrom, |by means of headed screw-studs 20| aises,4 121e extending. through, slots 202 in, the slide |91- Adocmmodated between the slide |91 and the 'arriagesidewall' III is a link member 203 which at its forward end has a pivotal connection with aF stud 205,` projecting from the right end-plate |13 of the front-feed table I,10,said stud 2nll5reach-v ing4 through aclearance aperture in the rightcar'- ria'ge'end =I I I; and in conjunction with said aperture Aaffording limits fort'opposite movement of the front-feed table. The linkl 203, near its rear, has guidance parallel to the slide |99. In the rearward position of the front-feed table, see Figure'll'an operating pin 209 projecting from the slide |91 is directly ybehind the rear end of 'the link 203. Therefore, when the Voperating handleVv |95 'is imparted a forward movement,k said link 203 will be displaced forwardly to swingthe front# feed table I 10 tothe front-feedv position seen in Figure' '1.

'In order to release thefeed-rolls |68 from the platen at the Sametime that the front-feed table |10 i's displaced forwardly, the aforesaidv feed-roll releasing shaft |16 has aflxed thereto, see Figure l, an upright arm 2|| having a forked' end embracing a projecting pin 2|3 on the slide |91. The composite slidel |93 is normally resiliently retainedin its rearward position by means of a springI 2 I4 anchored to the adjacent carriage wall In turn the link 293, and therefore also the connected front-feed table I 10 are resiliently a key.22 pivotedas at 223 on thecarriage, and

having a rearwardly extending arm` 224- underlying a lateral ta-bl225 on the latch arm 2I6.

Themac-hine embodies also means to open and close thev front-feed mechanism under carriage.

control, but the means for this is not shown. C'arlwltiolyJ and anchorage fixture therefor Ithas been said that some billing ,or accountingwork calls for front insertion of a work-sheet behind the foremost sheet, namely behind vtheY statement ysheet S. Such a work-sheetis given the designation- S' in` Figures 5 and7. Impres sions on this sheet-Sy. for a minimum of handling, are preferably made through the wmedium of acontinuous transfer or vcarbon-ply 319,.as supplied! from a roll 318 locatedat the rear of the platenthel ply extending from the roll to the front of'said sheetS.- Accordingly, see Figure 3, there` are mounted adjustably along a rod 315 on the carriage opposite carbon roll supporting `bracketsl 318 having pintles 311'reaching toward eachA other for supporting a carbon roll 318.

From sai-d roll` the 'carbon paper or ply 319 is passed.` :forwardlyf and downwardly'from the roll, underneath the bottom feed-rolls I 34', and upwardly behind the front-feed table over the topfeed-rolls |35'for anchorage ofa leading end' of the carbon-p lyon an anchorage device or fixture. generally designated by the numeralV 39|. The fixture 39| consists ofv a removable unit,A showniin Figure 6, comprising two widely spaced end-plates 392 connected by`a bar 393 having:y ends 394 -vrectangularly Vbent therefromvand rigid- -r lyfunited: with.- th'e endl plates 392 -byvscrewss395s and 33,67. A plate 391 is secured to the back of the bar 393, as. by rivets, not shown, and rises thereabove, a short distance to afford a clamping surface for engagement by a carbon-ply clamping rod 398 that'isT substantially co-extensive. with thebar 393.4 This rod 398 is supported at each of itsopposite: ends. on -a member 400, each ofwhich, as at 39,9., ispivotally carried on the adjacent endplateV 392, the rod andthe members forming a unitary, pivoted bail structure, and a contractile springxlll associatedwith each opposite member 400f beingv adapted; tourged the rod 398 into clamping, association in a corner formedby the top surfaceof thebar 3,93' and the front of the platef391gr the leading end of, the carbon-fply having previously been positioned between the rod 398 and the plate391.

flncertainfbusiness 'applications it is impractical' andsometimes unnecessary to use thecarf bon-ho `v`ingl xtures. For that reason suchv fix-v ture is constructedas a removable unit. SeeFigg-V uref?, Moreoven for reasons to be pointedout.it isdeslirablethatthe fixture 39| swing forwardly kinviglfal with thefforward displacement ofthe;

frontfeedjtablel, but in arp-ath and to a degreev different from that ofthe latter. Accordingly the end-platesf392 are formedA with open. saddles03ftot ovenpivot -pins 384. projecting inwardly from the oppositeside-wallsl -of thecarriage. Additionally said end-plates 392v are each'formed with an, open slot @05 for operative association with pins 460E 'extending inwardly from'n thelopposite plates |13 which support the front,` feed table |18. The slots. 305 are at the bottom; open-'mouthed as at 40511, so-that the fixture can bedropped readily into1p'osition on the carriage theV plate portions forming the saddles-403 at the opposite, ends: of 'the carriage. beingA` directed downwardlyjust in front of the usual mountingj collars A01 of the platen. See; Figures 5 andi?.-

Detentlevers 1308,'Y shaped at the bottom to reach atleast .partially underneath the pivot pins 2011;V and urged by the springs @0I to so reach underneathservetohold the entire fixture 39| remo l y assembledon the.. carriage.V The endlplates. `flgyjancithe Ydatent levers 'Ilfhavetapered entrance faces facilitating placement of the fixture upon the pivot. pins,fthe detent levers 308 duringxsuchfplacement. being momentarily yielding. Theixture .canbe-.removed readily and convenientlylby-exerting upward pressure thereon y therebyforcingsaid detent levers 998; from under thepivots 853. Pivotal support for v the det nt levers fililfisdV afforded bythescrews 39d.

which for this purpose are` shouldered- The A saddlesjgllili with the 'associated detent levers $08;y andnin Yconjunction with the: pivot pins 933i',- lconf stitutefrefsilient claspin means for readily-and..

side of.'v theplaten.;Y When vthe front-feed device.

vedgto openipositionas seenin Figure 7, the

carbon .anencrageV fixture'SQI, through the pins` fahdjis ,alsoV movedforwardly, .and slightly slackens thelcarbonl-Kply 39, to bulge from the platen.

thereby to relieve pressure from the underlying work-sheetS", andjto' prevent smudging ofsuch,

sheets when they are removedinserted, or read- J'llStedr.` The carbonfply'is slackened by reason ofthe, Pertieeler'eeihihrush ,Whishthe xiu're swings f* during the" opening movement "of the front-feeddevice. Such slackenlng is very littlel but yet effective. Obviously, similar to the table |10, the plate 391 constitutes a front-feed table; It will be noted that the pivotal axis for the table |10, as afforded by the pins |14, is chosen to give the table a movement downwardly and forwardly from retired to front-feed. position. This brings the table to an advantageous, 1ow` front-feed position. During front-feed table 're'- tiring, the lower edge of the-table moves upwardly and rearwardly to smoothen the inserted sheet S tightly against the platen. On the other hand, the pivotal axis for the carbon-sheet anchorage device 39| is so located that the anchorage bar 393 has an appropriate carbon-sheet slackening action as the machine is conditioned for front-feed.

It is to be understood that the slackening of the carbon-ply 319 provides clearance for front insertion of the sheet S', and, obviously the for ward tilting of the carbon anchorage fixture gives also a more favorable angle of introduction Yfor the sheet S', while it also reduces the necessary bend which the sheet must receive during insertion. The top edge of the plate 391 may serve as a gaging edge for the top edge of the sheet, but bottom edge gaging means, not shown, may be employed if this is found desirable.

The spring 40|, which serves the dual purpose of pressing the rod 398 into clamping contact upon the carbon-ply 319 and urging the lever 408 into fixture-holding position, exerts its force below the pivot stud 399 when the rod 398 is in carbon-holding position. The clamping rod 398 can be thrown off the plate 391 as indicated in dot-and-dash lines in Figure '1, by pushing linger tabs or flanges 4| 0 of the members 400 rearwardly. In so doing a pin 4|| on each member 400 rides over a hump on the upper end of the adjacent lever 408, and is nally caught in a detent notch 4|3 under the tension of the spring 40|. To apply the rod, forward pressure is applied to the tabs 4|0, forcing the pin 4|| out of detent notch 4|3 and over the said hump.

The clamp comprising the rod 398 and the plate 391 is released at intervals to draw the carbonply ashort distance upwardly and thereby to secure an unused transfer eld for use, the extending portion of carbon-ply being torn olfA generally designated by the numeral 4 4, see especially Figures 2, 4 and 6, are applicable to the fixture 39|. The clips are for-med of flexible sheet material and comprise a main body portionor web 4|5, from which there are bent to double over the web, a main spring prong 4|6 and two anking spring prongs 4|1. The clips are applied to the fixture downwardly over the rod 398 and the plate 391, the lower end of the prong 4|6 nally bearing resiliently against a beveled bottom edge of the bar 393, and the lower ends ofthe prongs 4|1 being forwardly bent to exert rearward and downward pressure on the rod 398. So many of the clips 4|4 are attached as may be required tofirmly anchor the carbon web 319.

The front-fed sheet S is positionable in correct lateral relation to other work-sheets by a left and/or right side edge gage 42|, secured to the square bar. |1|. For locating the work-sheet S', which is front-fed down behind thel carbon anchorage device 39|,Yone or two of the clips v4 |4A may be lprovided with side edge guides 4|8 which are bent rearwardly from the main web 4 5 of the clip 4|4.

The invention has been described with reference to the details shown in the drawings, but it is to be understood that variations in the construction and method of operation may be resorted to without departing from the spirit and scope of the invention.

What is claimed is:

1. In a business machine, the combination with a lplaten and a platen supporting framework, of a carbon-sheet anchorage attachment, clasping means oppositely on said attachment and said framework to hold said attachment removably on said framework, as well as swingably about an axis Ywhich extends parallel to the platen, :means including a bar on said attachment to secure a carbon-sheet to the attachment along a line extending substantially parallel to said axis. and means to restrict the said attachment for swinging between one or another position.

2. In a business machine, the combination with a platen and a platen supporting framework, of a front-feed device comprising a front-feed table, means to mount said front-feed device for foreand-aft displacement of said front-feed table, a. carbon-sheet anchorage attachment, clasping means to hold said attachment removably on said framework, asl well as swingably fore-and-aft about an axis which extends parallel to the platen, means for anchoring a carbon-sheet to said attachment along a line extending substantially parallel to said axis, and means on said attachment and said front-feed device for automatically establishing an articulate connection therebetween as the attachment is placed in clasped position on'said framework, whereby then a displacement of said front-feed device fore-and-aft results in a fore-and-aft swinging displacement of said attachment.

3. In a business machine having a platen, typing means adapted to type upon the front of the platen, a front-feed table mounted for movement from a rearward, retired position, in a path downwardly and forwardly to a position facilitating front-feeding ofa work-sheet, carbon-sheet anchorage means behind the front-feed table and mounted for displacement from a normal typing position to a front-feed position, forwardly and upwardly in a path different from said frontfeed table, to loosen slightly a carbon-sheet anchored to said anchorage means and hugging the platen around the front and bottom, and means tomove said front-feed table and said anchorage` means to' their respective front-feed positions c oncomitantly in their said respective paths.,

4. In abusiness machine having a rotatable' platen, typing means adapted to type upon the fronti-side of the platen along a typing line, paperholding means normally bearing againstgthe platen below and to the rear of the^ typing line.,

chorage means for movement between a typing and a front-feed position, pivotally about an` axis parallel to the platen and lying in the neighborhood of the typing line, and means to move said front-feed table from said out-of-Way position to said front-feed position and concomitantly to move said anchorage means from said typing position to said front-feedv position.

5. In a business machine having a platen; supporting means for the platen at theends thereof, a front-feed table, means including movable side members to mount said table on said platen supporting means for forward movement from a writing to a front-feed position, a carbon-sheet anchorage device comprising an elongate bar and end brackets rigid therewith, and means for readily and removably applying said anchorage device to said platen supporting means, and in a condition of operative association with said side members, said applying means comprising, pivot pins and open pivot seats oppositely on said end brackets and said platen supporting means, and a pin and a slot oppositely on at least one of said end brackets and one of said side members for providing an operative connection between said table and said anchorage device.

6. In a business machine having an elongate platen, a carbon anchorage device comprising, an elongate bar, a long, frail clamping rod mounted for swinging movement towards and away from said barV respectively to engage and release a carbon sheet, and a plurality of spring clips removably applied to said bar and rod at different locations therealong, to press the bar and rod resiliently together at the said locations for firm gripping of the carbon sheet.

7. In a business machine having a platen, means adapted to effect imprints along the front of said platen, a iront-feed table mounted for 10 movement from a rearward, retired position in a path forwardly and downwardly to a position facilitating convenient front-feeding of a worksheet, another front-feed table behind said rst one, means to anchor to this other table a carbonsheet supplied around the bottom of the platen, means to support said other table for movement from a retired position forwardly to a front-feed position, in a path independent from the first said table, and single means for moving both said tables from their retired to their front-feed positions.

8. In a, business machine, an openable and closeable front-feed throat, two front-feed tables, one to therear of the other, and both normally in retired rearward positions, means to anchor to the rear table a carbon-sheet supplied through said front-feed throat upwardly from the rear, means to support said tables for movement in diiTerent paths forwardly from their retired positions to positions for front-feeding work-sheets into said throat, and means for opening said front-feed throat and moving both said tables to their front-feed positions in a single operation.

WALTER A. ANDERSON.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS Number Name Date 1,801,495 Fleming Apr. 21, 1931 2,236,589 Anderson Apr. 1, 1941 2,349,693 Anderson May 23, 1944 2,363,989 Pittman Nov. 28, 1944 2,421,462 Muller June 3, 194'7