US3070009A

US3070009A - Burster imprinter

Info

Publication number: US3070009A
Application number: US638519A
Authority: US
Inventors: Jack J Kessler
Original assignee: Uarco Inc
Current assignee: Uarco Inc
Priority date: 1957-02-06
Filing date: 1957-02-06
Publication date: 1962-12-25
Anticipated expiration: 1979-12-25

Description

Dec. 25, 1962 J. J. KESSLER BURSTER IMPRINTER 5 Sheets-Sheet 1 Filed Feb. 6, 1957 Dec. 25, 1962 J. JLKESSLER 3,070,009

BURSTER IMPRINTER Filed Feb. 6, 1957 3 Sheets-Sheet 2 FUSE! Dec. 25, 1962 J. J. KESSLER 3,070,009

BURSTER IMPRINTER Filed Feb. 6, 1957 s Sheets-Sheet s United States Patent Ofiice Patented Dec. 25, 19%2 3,070,099 BURSzTER IMPRKNTER Each 5. Kessier, Qhicago, ilh, assignor to Uarco, incorporated, a corporation of Illinois Filed Feb. 6, 195"), $82. No. 638,519 2 Claims. (til. Hill-227) This invention relates to an imprinter for a continuous form stationery burster.

In many business ofiices, continuous form stationery is used for many operations. After some typing or other work is done on the forms, there generally remains some imprinting to be done just prior to bursting the strips into individual form lengths. in the past, a very simple imprinting roll and impression roll have been placed on a bursting machine to do this work. There have been serious limitations on the operation of such imprinters. The ierking of me paper in the bursting machine allows the imprinting to be done only when the paper is quiescent. This limits the location on the paper to a very short distance.

The present invention provides an imprinter which greatly enhances the usefulness of such apparatus and avoids the limitations mentioned above. It is, therefore, the principal object of this invention to provide a new and improved imprinter for continuous form stationery bursters.

Another object is to provide an imprinter of the character described capable of printing in any location on the form length.

A further object is to provide an imprinter which may be used to print continuously upon the continuous forms being sent through a bursting machine.

Other objects, features, and advantages of the present invention will be apparent from the following description t 3 is a view similar to FlGURE 1 showing particularly the rolls of inking and imprinting mechanism.

The particular stationery With which the present irnprinting apparatus may be used is best illustrated in FIGURE 2 wherein a continuous strip of stationery is prov with cross lines of weakening such as 4, so thathe strip may be divided in a bursting machine into individual form lengths. The bursting machine general- 13 employs a pair of front coacting rolls which feed the pa er forwardly to a faster running pair of rear rolls which grip the leading edge of the strip and burst it from the strip along the line of weakening. Such a bursting machine is shown in part at 5 and includes guide rods 6 and 7 as well as a feed-in roll 3 with a spring biased idler thereagainst for feeding the stationery into the burster. Reference is made to OCcnnell Patent 2,344 720 for the particular form of the bursting mechani and its opera-Lion.

in front of the bursting machine is placed an imprintmechanism supplied by an inking mechanism 13. with ink for the imprinting roll. As will be noted in 2, the stationery is led over a pair of pin wheel 'ecd members 122. and 12', which maintain the stationery in registry by engaging in the perforate feed bands 34 at either margin of the stationery. The drive to the pin wheel feeds is such that the speed of the paper through the imprinting stage is in timed relation to the speed of the paper in the bursting section. This drive is more clearly illustrated in FIGURE 1 wherein a continuous chain 15 obtaining its drive from a sprocket 16 on the bursting machine passes over a sprocket 17 on the inking mechanism from which all of the inking rolls and imprinting rolls are driven. The specific drive includes a gear lltl on the same shaft as the sprocket l7 and the drive is through gear 19, about which a supplemental gear 29 is rockabie by the bell crank 21 to mesh with the gear 22 directly on the shaft 23 of the imprinting roll 24. The impression roll 25 cooperating with the imprinting roll is driven by a gear as at the opposite end of the imprinting roll shaft so that the timed relation is always present.

The imprinting roll 24 is intended to be replaced readily by a different size of imprinting roll, and in order to accomplish this a handle 27 is attached to

slide menbers

28 and 25? at opposite ends of the imprinting unit so notched as to slide into the frame members 3t} and 31. A different size of imprinting roll will have a dif-; ferent size of gear 22, which may require the bell crank to be rotated in order to bring the driving gears into mesh.

Referring particularly to FZGURE 3, an inking mechanism 1]. is provided so that the imprinting can be continuous and quite extensive over the face of the stationery. Thus, a pool of ink is provided. with a sloping bottom 33 with adjusting pins thereon the usual way so as to control the ink placed on the surface of the fountain roller 35. The ink is transferred by ductor *6 to the ink roller 37 and thence from the vibrator roll to the form roller 39 so as to deliver it to the imprinting cylinder. The gear 13 from which the drive is obtained is in mesh with gear directly on the shaft of the vibrator roll and provides therefrom the drive for all of the ink rollers. Thus, a timed relation with the time of the burster is maintained.

Since the size of the imprinting cylinder may be changed, the location of the inking mechanism may also have to be shifted between the stationery imprinting mechanism la and the bursting mechanism 5. For this purpose, idler sprockets 4t} and are carried with the inking mechanism which is mounted upon a rack 42 movable by pinion when the handle 34 is turned. The drive relationship is always maintained even though the inking mechanism may then travel toward or away from the imprinting station. As will be noted in FIG- URE 2, the side members i-5 and 4d of the inking mechanism may slide Within the

side members

39 and 31 of the imprinting unit.

In order that the imprin g may occur continuously, the efect of the bursting resulting in jerking and moving of the stationery is damped out; there must be no movement of the stationery at the im nting roll and complete control of the registration is relied upon by the pin wheel feed. To dampen out all effect of the burster, a dancer roll 47 mounted in the vertical guide maintains a downward loop in the paper which absorbs all jerking of the paper by vertical movement of the dancer. It is known that bursting machines jerk the paper to provide tearing at cross lines of weakening therein and after a form is burst from the continuous web, it is fed forwardly faster than the web. Whenever the effect of bursting passes in a shock to the web just ahead of the imprinter, the dancer roll will move in its support to maintain the paper web between it and the imprinter taut thus dampening out any shock, and preventing any sliding of the paper relative to the imprinter.

The present invention provides a relatively inexpensive imprinting mechanism which can operate continuously and in any location on continuous form stationery. The drive is obtained from the bursting machine so that no additional power source is required, and in effect two operations may be accomplished as one.

The foregoing detailed description is given for cleargar ens J ness of understanding only and no unnecessary limita tions should be understood therefrom as modification will be obvious to those skilled in the art.

1 claim:

1. Imprinting apparatus for use with a continuous stationery strip with spaced cross lines of weakening fed into a bursting machine to obtain generally continuous imprinting, While performing bursting operations upon the strip, comprising: a bursting machine frame, spaced coacting pairs of bursting rolls mounted upon said frame for gripping said stationery strip to burst the same sequentially at said cross lines of weakening, said bursting machine frame having means thereon for supporting a pair of coacting printing rolls positioned to receive said strip of stationery in imprinting relation with the rolls in advance of said bursting rolls; positive feed control means including pin Wheels for feeding the stationery strip to the imprinting rolls, said feed pin wheels controlling advance of the stationery through the imprinting rolls; a dancer roll beyond the imprinting rolls and a support for said dancer permitting movement thereof by the stationery strip passing in contact with the dancer roll, said dancer being positioned to maintain a shock absorbing loop in the stationery strip between the imprinting rolls and bursting machine bursting rolls so that said feed control means may advance the stationery to the imprinting rolls free of shock from bursting operations upon the strip.

2. Apparatus for printing continuous form stationery simultaneously with bursting the stationery into form lengths, comprisin z a frame; coasting pairs of spaced bursting rolls mounted on said frame for gripping said stationery to perform bursting operations thereon; a printing mechanism mounted on the frame in advance of said bursting rolls and including coacting imprinting and impression rolls; positive feed means maintaining the stationery in alignment with the printing mechanism and for advancing the stationery toward said bursting roils; drive means connecting and driving the printing mechanism, positive feed means and bursting rolls in timed relation; an idler roll support between said printing mechanism and said bursting rolls; and an idler roll bodily movable mounted in said support, said stationery pass ing below said idler roll and supporting the weight of said roli whereby to maintain a loop in said stationery between the printing and bursting mechanism for preventing shock of the latter on the stationery from interfering With printing at the former as desired.

References Cited in the file of this patent UNITED STATES PATENTS