US2692137A - Machine for separating paper sheets from interleaved carbon sheets - Google Patents

Description

Oct; 19, 1954 K. K. K EFFER MACHINE FOR SEPARATING. PAPER SHEETS FROM INTERLEAVED CARBON SHEETS Filed Sept. 27, 1952 5 Sheets-Sheet l K. K. KEFFER Oct. 19, 1954 MACHINE FOR SEPARATING PAPER SHEETS FROM INTERLEAVED CARBON SHEETS Filed Sept. 27, 1952 5 Sheets-Sheet 2 AW/Away Oct. 19, 1954 KEFFER 2,692,137

MACHINE FOR SEPARATING PAPER SHEETS FROM INTERLEAVED CARBON SHEETS Filed Sept. 27, 1952 5 Sheets-Sheet 5 5g 2 ser Z T 5 5 a2;

i :9 2 5 5 I we 1 4 i 6 5/ b u U U J Oct. 19, 1954 K. K. KEFFER MACHINE FOR SEPARATING PAPER SHEETS FROM INTERLEAVED CARBON SHEETS 5 Sheets-Sheet 4 Filed Sept. 27, 1952 INVENTOR Oct. 19, 1954 K. K. KEFFER 2,692,137

MACHINE FOR SEPARATING PAPER SHEETS FROM INTERLEAVED CARBON SHEETS Filed Sept. 27, 1952 5 Sheets-Sheet 5 1 15-15 ENTO R e W Y d Q FQNEY Patented Oct. 19, 1954 MACHINE FOR: SEPARATING PAPER SHEETS FROM INTERLEAVED CARBON SHEETS Kenneth K. lieffer, NewHolland'. Pa..

Application September 27, 1952, Serial No. 311,829

18 Claims; 1

My invention. relates broadly to. machines; for" separating paper. sheets from interleaved carbon sheets and more particularly to, an improved method-and apparatus for rapidly separating paper. sheets. from interleaved carbon sheets with minimum handling of the sheets.

One of the objects of my invention is tozpro- 'vide an improved method for separating paper sheets'from interleaved carbon sheets by which the paper and. the carbon sheets are removed in opposite directions from an interleaved sheet pack;

Still another object of my invention is. to provide. an improved method for separating paper sheets from interleaved carbon sheets which con sists in vertically suspending the interleaved sheets and alternately withdrawing the paper sheets andthe carbon sheets from the suspended pack of sheets-by longitudinal movement in opposite directions.

Another object of my invention is to provide animproved machine for separating paper sheetsfrom interleaved carbon sheets having means for alternately withdrawing'the paper'and carbon sheets in opposite longitudinal directions from.

interleaved forms by operations which; require minimum handling of the sheets Still another object of my invention is to provideaconstruction of paper separating machine operating upon normally folded forms and em'-- ploying positive drive. means for withdrawing the sheets from the. interleaved forms within a minimum of physical overall area of space andwith'i avery substantial saving in-labor.

Still another object of my invention is to pro-- vide an arrangement of adjustable rack for suspending interleaved paper and carbon sheetforms in a position by which alternate paper and carbon sheets may be withdrawn from the susfrom interleavedcarbon sheets in multiple fold-- ed office forms wherein the machine is readily adjustable to accommodate a wide variety of sizes and. number. of interleaved sheets requiring separation.

Other and further objects of my inventionreside inthe improved method of interleaved sheet separationand machine for efiecting such. sep

aration as'set' forthmore. fully in the.specifica.-

tion. hereinafter following by reference to the accompanying, drawings, in. which:

Figure 1. is-a-perspective view of thesheet sep arating machine of my" invention. showing the? mechanismzfor. removing 2' one: of: the: sheets from". the interleaved carbon-and paper multiple fold ingforms; Fig. 2 is'a verticallongitudinal view taken through the. machine shown: in.Fig-; 1;: Fig. 3 is an enlarged. fragmentary view" of: one. end. of. the separating; machineillustrating the manner in' which the carbon sheet is removed from the interleaved carbon and paper.-sheets;;-

Fig. 4 is a horizontal sectional view taken sub.- stantially-on line-4-t of Fig. 2; Fig. 5: is a. top plan view of the separating machine;: Fig. 6. is an: enlarged vertical sectionalviewtaken-1 transversely of. the adjustable suspension. bars and.

: showing the manner.- of suspending. the'multiple interleaved carbon and paper sheet forms; Fig; 7 is an; enlarged; elevational view showing; the manner of' driving: the coacting. rolls employed for. Withdrawing the paper or carbon vsheetswfrom the interleaved. multiple; forms suspended: on the adjustable rackof the-separatingmachineg Fig.

8 is a transverse sectional. view taken: through.

one set: of thecoacting: rollers,- and' showingthe manner of mounting the rollers. for mutual ad justment with respect to each other. and; the; manualmeans for initially revolving the: rollers; while feeding: a paper or carbon. sheet therebetween, the. rollersbeing partially broken away to illustrate the resilient surfacing thereof; Fig; 9 isaview similar to the-view illustrated in Fig. 8;

but. showingtthe coacting, rollers separatedfor the introduction of a sheet therebetween preparatoryto thewithdraw-al thereof fromthe folded suspended interleaved pack.;.Fig. loris across seertional view taken substantially on. linex-e.--st.

of Fig. 8; Fig. his a cross sectional view'taken. substantially on line l|--l-I ofFig. 9'; Fig. lzis-across; sectional viewtaken; substantially on. line l2.-I2 of Fig. 9 and. illustrating the coacting:v rollers separated for the'introduction; and feed-- ing of a sheet therebetween; Fig; 13xis-a detail view showing v one of.- theroller suspension links;

mounted-for eccentric adjustment; Fig. lrl-is' a: vertical sectional view. taken on line M-Hl Ofi Fig. 13; and: Fig. 15" is a detailview illustrating the manner oiimounting thetransverse bars con.-

stituting. the" rack ofithei separating" machine. for

suspending the, multiple. interleaved carbon and paper. sheet ofiioe; forms. preparatory to' separation of. the. fiormsausing. the method and"; machine of: my. invention;

Heretofore. in; the' art? machines proposed; for

separating: carbon and paper sheets? in oiiice= tabulating. accounting, and: statistical data.

- forms, haverrequired: very substantial: labor and:

time in the operation of such machines and have necessitated very substantial floor space for the installation of the equipment. Such prior apparatus has depended upon gravity forces in its operation and has been subject to the disadvantages of adherence of the paper sheets due to the generation of static electricity incident to the movement of the paper sheets which has often resulted in shutdown of the equipment. Such prior machines have been of an inconvenient height from the floor resulting in inconvenience to oiiice workers and in separating the carbon sheets have necessitated the withdrawal of the carbon sheets by hand from the waste position which at best results in an untidy condition for both the workers and the office in which the machine is operated.

Moreover, such prior machines must have been built to accommodate office forms of a prescribed size and have not been readily adaptable to office forms of a different size. Such prior ma chines have performed the separating function by movement of the carbon and the paper sheets in the same direction, requiring a halting of operation as soon as a congested condition of waste carbon beneath the machine is reached.

In the method and apparatus of my invention I eliminate all of the difficulties hereinbefore experienced and provide a machine of convenient height and size for ofilce installation which is readily portable for operation in any desired location in the ofiice.

The machine of my invention includes an adjustable rack adapted to readily receive a folded pack of interleaved carbon and paper sheets of a wide variety of sizes and number of interleaved forms. The rack is readily adjustable to enable the forms to be spread apart and suspended thereon in a position in which the paper and carbon sheets may be alternately introduced into feed roll assemblies at opposite ends of the machine and driving forces applied to the feed roller assemblies for positively withdrawing the paper sheets in one direction and the carbon sheets in the opposite direction. The operation is rapidly performed with minimum of handling. The paper sheets with the tabular data thereon are delivered at one end of the machine for fan folding into a compact space for future use and/or filing, while the carbon sheets are delivered to the other end of the machine for reclaiming or for deposit into a refuse receptacle. The entire operation is performed so rapidly that labor up to 800 percent and time up to 1700 percent has been saved by the method and machine of my invention as compared to an operation of a manual character.

Referring to the drawings in more detail, reference character 2 indicates the frame of the paper and carbon sheet separating machine having vertically disposed standards la, lb, to and id terminating at their lower ends in supporting rollers or casters 2a, 2b, 2c and 2d. The standards la, lb, lo and Id each have sleeves designated at 3a, 3b, 3c and 3d adjacent their lower ends immediately'above the rollers or casters for providing connecting means for the horizon tally extending frame 4. The standards Ia, lb, lo and id carry adjustable sleeves 5a, 5b, 5c and 5d thereon which may be selectively set in position on the standards and provide connecting means for the horizontally extending frame 6. The horizontally extending frame 6 is vertically adjustable on the standards Ia, lb, I c and id by shifting the sleeves 5a, 5b, 5c and 5d thereon to the position at which the fan-fold sheets suspended on the machine may he supported by means of horizontally extending bars 64 and 65 which depend from the frame 6 by means of brackets 64a and 84b and 65a and 65b. The bars 54 and 65 serve to support the lower loops of the fan-fold sheets at the looped ends thereof relieving the weight of the sheets and facilitating the separating operation described more fully hereinafter. The bars 64 and 65 establish substantially tangential contact with the depending looped ends of the fan-folded multiple interleaved sheets. The standard la supports a bracket 1' for the driving motor 8 and also forms a mounting means for control switch 9 which controls the power supply to motor 8 from the lower leads ii].

The standards la, lb, I0 and id also provide mounting means for the adjustable sleeves Ha, i lb, i to and Hal which may be selectively located in a predetermined vertical position on the standards to provide supports for the horizontally extending frame consisting of connecting members [2a, [2b, We and iifd. The connecting members Ila and 12b extend longitudinally of the frame of the machine and provide mounting means for the spacially transverse bars I4 with intermediate limiting separator sleeves !5 located therebetween. The hOllZOl'1- tally extending frame 42, [2b, !2c and 5212 is vertically adjustable and the transverse bars it are spacially adjustable to accommodate the machine for operation on a wide variety of multiple paper and carbon interleaved fan-fold packs as they are completed on a tabulating or a statistical machine, the vertical adjustment providing for packs of different lengths as the sheets are suspended downwardly in a vertical position on bars M and the adjustable spacing between bars M serving to accommodate fan-fold packs of dif ferent numbers of interleaved. sheets. The length of transverse bars 14 between the longitudinally extending frame members 1211 and 52b is selected so that they are of a suitable dimension to accommodate such length of sheets constituting the fan-fold sections as the machine may be required to accommodate over a variety of different kinds of ofilce machines.

The standards to, lb, lo and Id serve as supporting means for coacting rollers which serve to withdraw the paper and carbon sheets in opposite directions at the top of the machine. Standards Id and 10 respectively support frames l6 and ii at the top thereof. These frames are each divided into upper and lower sections, that is, [Go and 56b; and Ma and i'ib, respectively. The lower sections I61) and l'lb provide mounting means for the two pairs of spaced coacting drawing rollers 28a and Ebb and 210: and 21b for drawing paper through one end of the machine from the interleaved fan-fold sheets suspended on the rack constituted by transverse bars 5.

At the other end of the machine, frames 58 and J9 are mounted on the upper ends of standards la and lb and serve as mounting means. for the pairs of coacting rollers 22a and 22b and 23a and 23b which operate to draw the carbon sheets from the interleaved sheets on the rack constituted by bars l4 through the opposite end of the machine.

The pairs of coacting rollers carried by the- 'frames at the top of the machine are driven through intermediate gears 2 and 25, respectively. The construction of each of the sheet withdrawing units. at opposite ends of the Ina chine is symmetrical and a description of one of 5. the units: as set forth in Figs 7-14 will be s'ufil cient for purposes of explaining the:- details of both units;

Referring to Figs, 7-14 it will. be observedthat the upper'rollers 20a and am of each of the coacting' sets of. rollers are resiliently supported in bearingswhich float with respect to the hearings: in which th lower coacting rollers 20b and" 2th are mounted. This isaccomplished by providing vertically disposed slots led and its in the lower section 161) offrame it and aligned slots lid and l 'lein lower. section Nb of frame ll within which blocks 26 and 27, and 23 and 29, respectively; are resiliently suspended by means of coil springs shown at 3.0; The coil springs 39 are located between. recesses countersunk beneath the upper sections Ilia and Ila of the frames l6 and I? and extending into recesses formed in the blocks 28, 21, 28 and 29. The blocks 26, 27, 28 and 2:9 eachhave a pin member shown at 25a, 28a and 29a depending from the bottom thereof andvariably' projecting into bores at it) and IT) in the lower sections l?) and 17b, for example, to serve asguides for the vertical movement of the floating roller of each of the coacting sets of rollers; Thus the top roller of each of the coacting sets of rollers-moves toward and away from the bottom' coacting roller while being maintained in vertical alignment therewith. Each of the rollers such as c and 20b for example are provided with resilient coatings 28a and 29b. The upper rollers of each of the sets of coacting rollers are journaled as shown for example at 284a, in the lower sections i617 and [lb of frames l6 and ll.

In Fig. 11 I have shown the journals for thalower rollers at 28b and 2H). It will be understood that the manner of assembling the other units is identical.

The shafts for the lower rollers'of each of the coacting sets of rollers are each provided with gears as shown for example at 20c and Z l'c which, in this particular arrangement, are intermeshed by means of gear 24. The arrangement at the opposite end of the machine is the same as shown more clearly in Fig. 5 where intermediate gear meshes with the gears" which drive the lower rollers of each of the coacting sets of rollers.

The bearings for the upper roller of each of the coact-ing sets of rollers as illustrated in Figs. 7-12, for example, are vertically adjustable. This is accomplished by suspending the shaftwhich carrice the upper roller of each of the sets of co acting rollers on links 3!, 32, 33 and34, shown in more detail in Figs. 13 and 14. Each link is co centrically mounted by an arrangement of angularly shiftable shafts shown at 35; 3'5 3'? and- 38. The shafts are journaled in the upper sections We, Ila, 18a and Ida of the frames l6, l'l l8 and i9, respectively. Each shaft carries an eccentric sleeve-like cam, represented at 35 and 36-, and 35" and 36", adjacent opposite ends thereof operating within apertures in the upper portions of the suspension links so that as the shaft, shown at 36 for example, is revolved the linksand the rollers associated therewith are effectively raised or lowered in a vertical'direction. The rotation of shafts 35, 36, 37 and'38 is accomplished by means of manually operated levers shown atllii, dd, 4!, ti", d2, 52' and 43, 43 for respectively controlling the adjustment of each end of the upper roller of the coacting' sets of rollers for setting the spacial relatlonof' the nip of the: rollers for most effectively oper'ating upon' the-paper and'carbon sheets.

The: assemblyof the sets of rollers within the" mounting 'frames is readilyaccessible forre'pair,

adjustment and replacement of parts as the up per section of each mounting frame is readily removable and replaceable with respect to the lower section by means of the screw lie for ex ample in the unitshown in Figs. 7-12.

The feeding of the carbon'or paper'sheets into the nip of thecoact'ing rollers is initially accomplished by means of a manually operated hand wheel 44 or 45 which is mounted on the shaft of the lower roller represented at 20b and 22b and serves to revolve the gear 200 and 220 imparting movement to all of the other coacting rollers for a sufiicient time period to enable the paper or carbon sheet to be started through the machine. If the paper or carbon sheet has been started through the coacting rollers, switch 9 is operated, operating motor 8 which drives belt 46 operating over pulley 41 carried" by shaft 231)" which revolves lowerroller 23b and gear 23c as sociated therewith. Rotative movement is transmitted through an intermediate gear 25 to gear 220 on shaft 221)" which carries roller 22b. Shaft 221)" carries bevel gear 48 which meshes with interleaved carbon and paper'sheets shown at 54'- suspended in fan fold arrangement on the transverse bars l4. Similarly the carbon sheet represented at 55 in Fig. 3 is manually fed between the nip of rollers 22a and 22b to-start the carbon paper therethrough and between rollers 23aand 23b and thereafter the motor started for drawing 'the carbon sheet through the machine in the opposite direction.

I provide a guide at each end of the machine for directing the paper into the paper feed rolls as represented at 56 in Fig. 2, where the guide is supported on opposite ends on frames it and ll and braced in an intermediate position by means of bracket 51. The paper sheet 53 glides over the roundedsurface'ofguide 56 entering the nip of rollers 213a and 206. As the paper passes through coacting'rollers 2 la and?! lb it'is guided over a similar guide surface, which I have represented at 58, supported'by intermediate bracket 59. Similarly, the carbon paper 55 is guided, as represented in Figs. 2 and 8, over a guide surface represented at 60 supported between frames I8 and I9 and braced in an intermediate position by bracket 6|. The carbon paper as it passes through the coacting sets of rollers 22a, 22b, 23a

gitudinal direction toward the left as indicated F in Fig: 3.

It will be understood that in starting the machine the paper sheets are fed through the" co- 'acting'sets of rollers 21a and 2Ib, and 2ll'aand thereby imparting motion to roller 2%.

20b, and thereafter the positive drive of the motor takes over and the paper sheet is zipped rapidly through the machine and out of the fan fold form to a position where the paper sheets may he refolded and filed away for future reference. On the other hand, the carbon sheets after being initially fed through rollers 22a. and 22b and 23a and 23b are then positively withdrawn from the fan fold suspension by operation of the motor 8.

The transverse bars Hi do not fill the entire length of the longitudinally extending members 52a and i222 and adequate space is allowed for special adjustment of bars l4 along members H20! and E22) as shown for example in Figs. 1-5 and 15. When the machine is used for separating fan fold forms of a predetermined size and number of sheets the sleeves l5 maybe set in a predetermined position by means of set screws shown at 55a to accommodate the machine for the predetermined size of interleaved fan-fold sheets.

In lieu of the complete withdrawal of one sheet in advance of the withdrawal of the adjacent sheet, I may expedite the separation process by starting the withdrawal of one sheet in one di rection and then as soon as the free end of the immediately adjacent sheet is accessible the withdrawal of the said adjacent sheet can be started thereby accelerating the separation process.

Moreover, I may arrange the machine of my invention so that single pairs of rolls may be employed for withdrawing the sheets in lieu of the compound arrangement of rolls utilized for withdrawing the sheets. In certain instances, I may withdraw both paper and carbon sheets in sequence, through the same end of the machine, by first withdrawing a sheet of one characteristic and next withdrawing the sheet of the other characteristic.

While I have described my invention in certain pref rred embodiments, I realize that modifications and improvements may be made and I desire that it be understood that no limitations upon my invention are intended other than may be imposed by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. A machine for separating paper sheets from interleaved carbon sheets comprising a rack for suspending fan folded multiple interleaved paper and carbon sheets with the free ends of said sheets accessible adjacent one end of said machine and positively driven sheet withdrawing means disposed at each end of the machine, one of said means being operative to grip and withdraw paper sheets from said interleaved sheets in one direction and the other of said means being operative to grip and withdraw the carbon sheets in the opposite direction.

2. A machine for separating paper sheets from interleaved carbon sheets comprising a frame supporting roller feed means at each end thereof, a plurality of adjustably spaced lateral bars mounted on said frame intermediate said roller feed means said bars being spaced to receive and support fan folded multiple interleaved paper and carbon sheets with the free ends of the sheets terminating at one end of said frame in a position from which the individual sheets may be separately introduced into said roller feed means and said paper sheets removed from said fan folded sheets in one direction and said car- 8 bon sheets removed from said fan folded sheets in the opposite direction.

3. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 2 in which said roller feed means are each constituted by two pairs of coacting rollers geared to each other, both of said pairs of coacting rollers at one end of the machine acting to move the paper sheets through one end of said machine and both of the pairs of coacting rollers at the other end of the machine operating to move the carbon sheets through the last mentioned end of the machine.

4. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 2 in which each roller feed means includes a manually operated controller for revolving said roller feed means for initially feeding said sheets between the nips of said roller feed means.

5. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 1 in which a guide member is interposed between one end of said rack and one of said sheet withdrawing means for directing the said sheet into the sheet withdrawing means.

6. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 1 in which a guide member is located between each end of said rack and each of the sheet withdrawing means, one of said guide members operating to direct and guide paper sheets and the other of said guide members operating to direct and guide carbon sheets.

'7. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 1 in which said positively driven sheet withdrawing means are operated by the same motor device and gear means driven by said motor device for operating one of said sheet withdrawing means through the other of the sheet withdrawing means.

8. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 1 in which said rack consists of a plurality of transversely disposed space bars supported at opposite ends, said bars being adjustable in spacial relation to accommodate fan folded multiple interleaved paper and carbon sheets of differing dimensions and plies.

9. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 2 in which said roller feed means are each constituted by two pairs of coacting rollers wherein one roller of each coacting pair is vertically adjustable toward and away from the other coacting roller for facilitating the gripping of said sheets between the nips of the rollers.

10. A machine for separating paper sheets from interleaved carbon sheets comprising a vertically extending frame, a horizontally disposed frame adjustable to selected positions on said vertically extending frame, said horizontally disposed frame including a pair of longitudinally extending spaced members, a multiplicity of transversely disposed bars supported at opposite ends by said longitudinally extending spaced members, limiting separators between said bars for limiting the approach of one bar with respect to an adjacent bar, said bars serving to suspend fan fold multiple interleaved paper and carbon sheets with the free ends of said sheets accessible adjacent one end of said frame, paper sheet removing means carried by one end of said frame and carbon sheet removing means carried by the other end of said frame.

11. A machine for separating paper sheets from interleaved carbon sheets comprising a frame, a motor carried by said frame, a set of coacting rollers journaled adjacent one end of said frame, a separate set of coacting rollers journaled adjacent the other end of said frame, manual means for each set of said rollers for independently revolving each set of said rollers, means operated by said motor for driving both of said sets of coacting rollers, a rack carried by said frame intermediate said sets of coacting rollers for suspending fan fold sheets of interleaved carbon and paper sheets with the free ends of said sheets terminating in a position accessible to each of said sets of coacting rollers, whereby said paper and carbon sheets may be alternatively introduced through the sets of coacting rollers and withdrawn from said interleaved fan folds, the paper sheets moving in one direction and the carbon sheets moving in the opposite direction.

12. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 11 including guide means associated with each of said coacting sets of rollers and interposed between said rack and the respective sets of coacting rollers whereby the paper and carbon sheets are independently directed into the hips of the sets of coacting rollers.

13. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 11 in which said sets of coacting rollers include manual means for revolving said rollers independently of the driving forces imparted thereto from said motor.

14. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 11 in which said sets of coacting rollers each includes a lower roller and an upper roller and adjustable eccentric means for controlling the position of the upper roller with respect to the lower roller while maintaining the vertical alignment of said upper roller with respect to said lower roller.

15. A machine for separating paper sheets from interleaved carbon sheets as set forth in claim 1 in which said sets of coacting rollers each includes a lower roller and an upper roller and manually controlled means for adjusting the position of the upper roller with respect to the lower roller while maintaining the vertical alignment of said upper roller with respect to said lower roller.

16. The method of separating paper sheets from interleaved carbon sheets in a fan folded multiple interleaved paper and carbon sheet pack which consists in spreading the fan folded multiple interleaved sheets in a horizontal direction, suspending the fan folded sheets vertically with the interleaved paper and carbon sheets accessible from the top thereof and withdrawing the paper sheets and carbon sheets alternately in opposite longitudinal directions from opposite ends of the fan folded pack while maintaining the fan folded sheets in suspension.

17. The method of separating paper sheets from interleaved carbon sheets in a fan folded multiple interleaved paper and carbon sheet pack which consists in spreading the fan folded multiple interleaved sheets in a longitudinal direction, suspending the fan folded sheets vertically with the interleaved paper and carbon sheets accessible from the top thereof, positively gripping the free end of the paper sheet and forcefully withdrawing the paper sheet from the interleaved suspended pack, thereafter gripping the free end of the next succeeding interleaved carbon sheet and forcefully removing the said carbon sheet in the opposite direction while maintaining the interleaved sheets in suspended position and recycling said operations until all of the interleaved paper and carbon sheets are removed from the suspended pack.

18. A machine for separating paper sheets from interleaved paper and carbon sheets comprising a rack for suspending fan folded multiple interleaved paper and carbon sheets with the loops thereof depending downwardly and means adjustably supported on said rack and establishing substantially tangential contact with the looped ends of said fan folded sheets for supporting said fan folded sheets at the depending ends thereof.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 354,208 OSullivan Dec. 14, 1886 1,616,363 Gammeter Feb. 1, 1927 1,666,165 Christophel Apr. 17, 1928 1,901,306 Knowlton Mar. 14, 1933 2,341,636 Luehrs Feb. 15, 1944 2,368,68 Sherman Feb. 6, 1945 FOREIGN PATENTS Number Country Date 506,228 Germany Feb. 19, 1929

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