US2970784A - Method of deleaving and bursting continuous form stationery - Google Patents

Description

Feb 7, 1961 J. J, KEssLER 2,970,784

METHOD OF DELEAVTNG ANO BuRsTTNG CONTINUOUS FORM STATIONERY Filed oct. 19, 195s 2 sheets-sheet 1 J. J. KEssLER 2,970,784 METHOD oF DELEAVTNG AND BuRsTING CONTINUOUS FORM STATIONERY 2 Sheets-Sheet 2 Feb. 7, 1961 Filed oct. 19, 195e ,TME

METHOD OF DELEAVING AND BURSTWG CONTINUOUS FORM STATIONERY Jack J. Kessler, Chicago, Ill., assigner to Narco, Incorporated, a corporation of Illinois Filed Oct. 19, 1956, Ser. No. 617,077 3 Claims. (Cl. 242-562) This invention is concerned with a method of handling interleaved continuous-form stationery and more particularly with the method of separating such stationery into individual form lengths while removing the carbon strips from interleaved relation with the stationery.

This application is a continuation-impart of my copending application Serial No. 544,197, tiled November 1, 1955.

Many business offices use a large amount of continuous form stationery interleaved with one-time carbon strips. After the stationery has been written upon by one type or another of writing machine, the carbon strips must be removed from the stationery st-rips so that it may be discarded. Additionally, the stationery strips are often divided at cross lines of weakening into individual form lengths.

Generally the procedure followed by most business oces in separating the continuous form stationery into its components has required the use of two machines. The stationery is rst put through a deleaving machine which separates the stationery strips from the carbon strips. The carbon strips are discarded and the stationery strips thereafter handled individually. Any of the stationery strips requiring to be broken into its individual form lengths was thereafter put through a bursting machine which would separate the strip into its individual form lengths. Each stationery strip was put through the bursting machine in sequence since the machine can ordinarily handle but a single strip at one time.

The method of the present invention uses the bursting A machine that is ordinarily found in most business oices using-continuous form stationery. The method of operating the machine, however, is different from that previously practiced since the deleaving of the stationery and the bursting of the stationery strips is handled in a single machine.

It is therefore the principal object of this invention to provide a new and improved method for deleaving and bursting continuous-form stationery.

A further object of the mventlon 1s to prov1de a method of handling continuous-form stationery such that deleaving of carbon strips and the bursting of stationery strips into form lengths may be carried on simultaneously.

A still further object of the present invention is to provide for the bursting and deleaving of continuousform stationery with a single bursting machine so as to eliminate the need for a separate deleaving machine.

`Other objects, features and advantages of the present invention will be apparent from the following description'of a preferred embodiment of a machine for carrying out the method, as illustrated in the accompanying drawings, in which:

Figure 1 is a' diagrammatic side elevational view of the operative parts of a bursting machine illustrated as carrying out the first steps of the invention;

` Figure 2 is a fragmentary elevational view of the movable plate on the lower pack tray,

`Figure 3 is a fragmentary plan view of a portion of the'trimming device and stationery employed in the machine and 'in the method;

4Figure 4`is a view similar to Figure 1 showing addi- 2,973,784 Fatented Feb. 7, 1961 tional steps in the method of the present invention; and

Figure 5 is a fragmentary plan view of a portionof the weight rack on the upper pack tray.

`In order to illustrate the method of operation of the' present invention, the drawings diagramrnatically illustrate parts of a five-part continuous-form stationery as it would be handled in the apparatus. In Figure 1, illustrating the rst steps in the invention, the top three stripsV of the stationery are illustrated whereas the bottom twoz"v strips are left off for clarity of illustration in the drawings. ln general, the method of the invention contem-` plates that the continuous-form stationery will be handied in the bursting machine to both burst the top std-4 tionery strip and deleave the carbon strips. Addition-v aiiy, the machine is used to trim the perforated feed b'ands` from the margins of the continuous stationery.

The bursting machine used with the invention may be of conventional form, and, as illustrated in Figure 1,: may have a pair of front coacting bursting rolls 4 and S driven at a peripheral speed slightly in excess of the peripheral speed of the adjacent rear coacting bursting` rolls 6 and 7. in operation, the front bursting rolls gripping the leading edge of the stationery strip willy cause it to part from the strip along a line of weakening", so that an individual form F may be burst from the strip S which is fed toward the front bursting rolls by' rear rolls 6 and 7. A support 8 between the rolls" prevents the stationery strip from sagging-prior to its entry into the bight of the front rolls.

'the bursting machines are usually equipped with a' trimming device generally indicated 9 including alower roll iti against which the upper cutter ll, more clearly illustrated in Figure 3, rolls in order to remove the feed band l2 from the stationery strip S. n

in following the method of the present invention, thev continuous-form stationery, after being filled out by a. writing machine, is placed upon a shelf or pack tray 13"' at the rear of the bursting machine and is led from th'ej shelf upwardly to the bursting machine. In the present illustration, the top stationery strip Sis 'shown adja-,l cent a carbon strip C and the third strip S" is the next` adjacent stationery strip and the fourth strip is a carbony strip C. Only these four strips are shown in Figure'l'j so that the operation will be clear although it should bef understood that the illustration is concerned with a iive"vv part form which would include tive strips in all, two' of which are carbon strips. The stationery is led upwardlyf over a pair of guide rods i4 and 15 to a driven roll 16"` with an idler 17 bearing thereagainst. From the drivenif roll 16 the stationery advances through the trimmer 9" where the marginal portions or feed bands 12 are removed from all of the strips and'then directed down-VV wardly to a wastebasket or similar receptacle. The three superposed strips pass onwardly toward the bursting rolls;` however, the carbon strip C and next stationery strip S pass over an idler roller i and are deflected down-1y wardly against a chute guide 20 so that they travel downwardly as indicated by the arrow and refold in a zigzagf form into the pack 2i. The pack 2l is conveniently supported on a shelf or lower pack tray 22 on a fratriewhich also supports the shelf 13. At the point that the carbon strip and stationery strip S were deflected, the" uppermost stationery strip passed on intothe bursting" rolls.

The stationery has been controled during ithe initial. steps just described not only by the feed rollers of the; bursting machine, but also by the weight rack 35 and movable or adjustable plates 36 and 37 on the upper andv lower pack trays respectively. The weight of the rack" 3S rests directly on the pack of stationery on ,the upper" tray 13 thus resisting any tendency for the pull of the' rollers 16 and 17 to unfold more than one fold of'sta-'l tionery at a time. The weight may be varied by changing the size of weight rod 38 as desired. Ambient temperatures and moisture .conditions as Well as size and. kind of paper involved may influence the amount of weight desirable for satisfactory operation. The rack 35 has ears 39 loosely embracing the plate 36 in order to permit only vertical movement of the rack.

The other control of the stationery during the precedixig' steps is the refolding' control afforded by the movable plates 36 and 37. As will be noted in Figure 1, each plate may be adjusted in position between extreme positions 36a to 366 and 37a to 37b respectively. It is desirable to adjust the lower space into which the p ack refolds as well as the upper space, to just slightly in excess of the pack width. Such adjustment aids in controlling orderly unfolding and refolding into the zigzag folded pack form. Also it should be noted that the stationary plates 34 and 44 always form one Wall of the pack receiving tray and are always in fixed relation to rolls 24 and 29. This latter arrangement aids in carrying out the additional steps of the method here involved.

In structure, the movable plates 36 and 37 are secured for sliding movement on the upper tray 13. As best seen in Figure 2, the plate 37 is provided with finger-like tabs 40 loosely gripping the respective edges of the tray 13. The movable plate 36 is provided with similar tabs 41. v

,Following the above steps of the method, the top stationery strip has been deleaved from the continuousform stationery and burst into its individual form lengths in the machine. The remainder of the stationery has been refolded into a zigzag pack with a carbon strip uppermost. All of the strips have been trimmed and are now free of the marginally punched feed band.

The next step in the method is illustrated more clearly in Figure 4. The carbon strip C, the second stationery strip S', and an additional carbon strip C are shown in this illustration although in a live-part form there is the lower-most stationery strip which is not illustrated. The pack 21 has been lifted from the lower shelf 22 to the upper shelf 13 to prepare the pack 21 for passage through the machine in the next step of the deleaving and bursting.

The supporting structure for the shelves 13 and 22 is provided with a pair of standards 23 supporting a `narrow roller 24 driven through appropriate gears 25 and a motor26 supported on a plate 27. The carbon strip C, which is uppermost on the pack 21, is wound about the roller 24.V The stationery strip S immediately below the carbon strip C is carried over the guide rods and into the bursting rolls in the same manner as the stationery strip S was in the illustration of Figure 1. The rolls of the bursting machine and the roller 24 which is used to wind up the top carbon strip are both driven in timed relation so that the top two strips, namely the carbon strip C and the stationery strip S' are pulled from the pack 21 at the same rate. Pulling the top two strips from the pack 21 causes the remaining strips to be lifted so that they may refold in a new zigzag pack 2S on the lower shelf 22 as illustrated for the carbon strip C'.

In order to assist the carbon strip C' and the lower stationery strip (not shown) to refold on the shelf 22 within the zigzag pack 28, a driven roller 29 is positioned above the pack 28 to help advance the strips. The strips are merely passed over the roller 29 and are not gripped in a positive drive manner; however, sulficient frictional driving force is applied to the strips to aid in their advancement. The positioning of the zigzag packs on the upper and lower trays against the stationary plates 34 and 44by use of the adjustable plates 36 and 37 permits the angle of wrap of the carbon strip C around the roller 29 to remain within tixed limits even though the length of the forms put through the machine may vary. This feature has been found to contribute toA accurate and satisfactory feeding and refolding without launching up the carbon. The weight tray 35 may also `the roller 29 in timed relation to the carbon take-up roller 24 and the feed rolls of the bursting machine. The fixed position plate 34 prevents the strips passing over roller 29 from becoming fouled with the pack 21.A

In the operation of the method as illustrated in Figure 4, the top carbon strip is removed from the pack by being wound upon the roler 24. The next adjacent stationery strip is taken through the bursting rolls and burst into its individual form lengths. There remains on the lower shelf 22 a zigzag pack comprising the uppermost carbon strip and the lowermost stationery strip which may be put through the machine again exactly in the same Way as illustrated for the pack 21 in Figure 4.

Thus, in the present invention, a single bursting machine is equipped to both deleave and burst the strip of continuous-form type. The operations required in order to handle a multipart form are decreased by one over the methods previously employed and a corresponding amount of time is saved. Also, the business office saves the expense of a deleaving machine since the deleaving may be carried on with their bursting machine with very slight modification.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, for some` modifications will be obvious to those skilled inthe art.v

I claim: l. The method of deleaving and bursting marginally punched continuous form stationery interleaved with onetime carbon, comprising in sequence the steps of ad-.

the bursting rolls immediately following said trimming;l deectmg the balance of the interleaved stationery andcarbon strips away from the top strip and folding said balance in a zigzag pack; then separately gripping and pulling the carbon andstationery strips upwardly from the pack in timed relation causing the remaining interleaved strips to turn over into an adjacent refolded pack; discarding the carbon strip and bursting said uppermost stationery strip in said bursting rolls.

2. The method as specified in claim 1 and including the further steps of winding the carbon strip upon a roll and driving said roll and the bursting rolls in timed relation to pull the uppermost carbon and stationery strips from the pack at the same rate.

3. The method as specified in claim 1 and includingthe further step4 of laterally directing interleaved strips remaining upon pulling the uppermost carbon and stationery strips from the pack to refold in a zig-zag pack.

References Cited in the le of this patent UNITED STATES PATENTS UNTTED STATES PATENT oFFTcE CERTIFICATION OF CORRECTION Patent No.` 2,970,784 p February 7, 1961 Jack J., Kessler 1t is hereby certifiedthat error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.

the grant, lines 2 and ll, and in the heading to the printed specification, lines 4 and 5, for "Narco, incorporated" read Uarc'o, Incorporated en.

Signed and sealed this 18th day o July 1961, --w

C SEAL) Attest:

ERNEST W. SWIDER DAVID L. LADD Attesting Officer Commissioner of Patents

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