US437896A - Machine - Google Patents

Description

G. KAPFENBERGER. PAPER SLITTING MACHINE.

No. 437,896. Patented Oct. 7, 1890.

(No Model.)

Q} H M l Inventor "1 W SW Attorney UNHED STATES PATENT OFFICE.

GUSTAV KAFFENBERGER, OF CLEVELAND, OHIO, ASSIGNOR TO THE CENTRAL PAPER AND FIBER COMPANY, OF SAME PLACE.

PAPER-SLITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 437,896, dated October '7, 1890.

Application filed June 19, 1890. Serial No. 356,004. (No model.)

To all whom it may concern.-

Be it known that I, GUSTAV KAFFENBERGER, of Cleveland, Ouyahoga county, Ohio, have invented certain new and useful Improvements in Paper-Slitting Machines, of which the following is a specification.

This invention pertains to that class of machines employed for slitting wide webs of paper into narrower webs, the operation being performed by drawing the paper from a roll between shearing-disks, which run together and perform the cutting of the paper. This class of slitting-machines is very often used in connection with paper-making machines, and also with machines for cutting the slitted webs up into sheets, and it is the ordinary custom to utilize the frame-work of the papermaking machine or sheet-cutting machine as parts of the frame-work for the paper-slitting machine. Given the case of a paper-machine delivering its wide continuous web through a slitting-machine, which divides that web into two or more narrower webs, and given the desire to alter the width of the narrower webs, it becomes necessary, with ordinary slittingmachines, to break the web of paper and re adjust the slitters to the new conditions and then start the web of paper again.

The object of my invention is to provide a slitting-machine which will enable changes to be made in the width of slitting without the necessity for breaking the web of paper or of interrupting its continuity of progress.

My improvements will be readily understood from the following description, taken in connection with the accompanying drawings, in which-- Figure 1 is an end elevation of a paper-slitting machine exemplifying my improvements, the end there shown being hereinafter designated the head or head end and the portion to the left of that figure being hereinafter designated as the front and that to the right as the rear of the slitting-machine; Fig.2, a front elevation of the structure, the shafts, cutting-disks, and boxes pertaining to the front cutting-disks being removed and the shifting-bar 18 being shown in vertical section; Fig. 3, a plan of the structure on a reduced scale, a portion of the top front shaft with its cutting-disks being broken away and the tumb1ing-gear and its arm being omitted; Fig. 4, an elevation of the rear end of the machine, showing the arrangement of gearing, this view being upon a smaller scale than Fig. 1; and Fig. 5, an enlarged plan, half diametrical section, of one of the top cutting-disks.

In the drawings, 1 indicates the frame or leg portions, which portions may with propriety be looked upon as any appropriate portions of the ordinary paper-making machine or sheet-cutting machine, the office of these frame portions being to rigidly support a horizontal cylindrical bar; 2, a horizontal cylindrical bar supported by the frame portions and fixed against rotation therein; 3, a bracket fixed near each end of this bar and secured firmly thereto, as by set-screws or the like, and adapted to be adjusted rotarily .upon the bar and then firmly fixed, these brackets having a triangular form; 4, journal-boxes secured to the front and rear edges of these brackets near the base thereof and preferably arranged for vertical adjustment thereon, as by bolts and slots, as illustrated; 5, shafts journaled in these boxes, these shafts forming the front and rear bottom slittershafts; 6, slitter-disks, of ordinary form, secured to these shafts and adapted for adjustment along the same; 7, a shaft journaled in bearings formed in the upper extremities of the brackets and adapted for partial rotation therein; 8, horizontal arms rigidly secured to this shaft near the ends thereof and projecting to the front and rear thereof; 9, journalboxes secured to the extremities of these arms and arranged, preferably, for vertical adjustment thereon, the same as the boxes of the lower slitter-sha-fts; 10, shafts journaled in the boxes E) and forming the front and rear top slitter-shafts; 11, slitter-disks secured to the rear top slitter-shafts and arranged for adjustment along the same, these top slitter-disks being preferably of an improved construction hereinafter explained; 12, similar slitter-disks on the front top slitter-shaft5 13, Fig. 1, a line representing the web of paper passing between the slitters without being acted on by the slitters; 14, a hand-lever rigidly secured to the head end of the top shaft 7 and serving as a means for rocking that shaft, the handle of the lever being provided with a detent-pin; 15, detentholes upon the appropriate frame portion adapted to be engaged by the detentrpin of the hand-lever 14; 16, a disk mounted upon the head end of the top shaft 7 and adapted for partial rotation thereon; 17, facial cams or inclines upon the outer face of this disk; 18, a shifting-bar reaching across from one top slitter-shaft to the other and engaging circumferential grooves in the ends of those shafts, the middle of this'shifting-bar passing between jaws formed in the head end of the top shaft 7, and pivoted therein by a pin at right angles to the shifting-bar, the inclines 17 engaging the rear of the shift ing-bar; 19, a hand-lever on the disk 16, to serve in rotating that disk; 20, a rod extending from end to end of the machine and projecting at each end thereof, this rod being illustrated as being disposed axially within bar 2; 21, a lever fast on the head end of rod 20; 22, a pin projecting outwardly from the face of this lever through a slot in the hand lever 14; 23, a spur-pinion fast on the tail end of each of the slitter-shafts; 24, an arm secured to the tail end of rod 20 and forming a tumbling journal-box; 25, a tumbling pinion whose spindle is mounted in such journal-box, this pinion being adapted to engage with the pinion of either bottom slitter-shaft, according to which way the tumbling arm is turned; 26, a sprocket-wheel fast upon the spindle of the tumbling pinion and serving to exemplify a means for giving rotation to the tumbling pinion; 27, Fig. 5, the hub of one. of the top slitters, this hub having a collar at its head end and being adapted for adjustment along its slitter-shaft 10; 28, the usual gib seated within this hub and engaging the usual spline in the slitter-shaft; 29, the collar-nut screwed on the tail end of the slitter-hub 27; 30, a counterbo'red slitter shell, its rear end fitting the smaller portion of the slitter-hub, so as to slide thereon, while its co'unterbored portion fits the collar of the slitter-hub; 31, the slitting-cutter having the form of a convex ring clamped againsta suitable shoulder on the slitter-shell; 32, a ringnut screwed on the slitter-shell and serving to clamp the cutter-ring to place; 33, an annular recess formed within the slitter-shell and boundedendwise by the rear end of the counterbore and by the rear face of the collar on the slitter-hub; 3a, a spiral spring disposed within this recess, abutting against the collar of the slitter-hub and pressing against the rear wall of the counterbore and tending to press the shell endwise as far as permitted by nut 29; 35, a set-screw screwed through the collar of the slitter-hub and impinging on the gib, the slitter-shell being notched to straddle this screw; 36, Fig. 3, springs upon the top slitter-shafts tending to press those shafts endwise rearwardly, these springs, however, not being essential; and 37, Fig. 2, a set-screw in the front leg, serving to exemplify means for holding the bar 2 against rotation.

By an inspection of Fig. 1 it will be obvious that the device presents the aspect of two sets of slitters through which the paper passes, both sets being shown in the figure as out of action. If hand-lever let be moved to the right, the top structure will be rocked and the set of front slitters 12 will come down and engage with their lower slitter-disks, and the paper will therefore be slitted by the front slitters. While the front slitters are in action the rear slitters are open, and they may be adjusted to any desired width of cutting. To throw the differently-set rear slitters into action it is only necessary to move the lever 14 to the left. This closes the rear slitters and opens the front ones, and the new-slitting begins at once without interrupting the progress of the web of paper. In this way the idle set of slitters may be adjusted while the other set is at work, and there need be no breaking of the web. The slitter-shafts may of course, as usual, be provided with any desired number of slitter-disks. The salient feature of the double arrangement of slitters is that one slitter-shaft of each set is upon one side of the web of paper, while the other slitter-shaft of each set is upon the otherside of the web, either set being opened or closed, as desired.

The boxes at and 9 of the slitter-shafts are made adjustable vertically on the housings which support them, in order to permit an adjustment of the degree of lapping of the disks of the acting set of slitters. Such adjustment is not essential, but will be found Very useful.'

In Fig. 1 the web of paper 13 is shown as extending horizontally, and the two shafts 5 of the lower slitters are accordingly disposed in a horizontal plane. But quite frequently the Web of paper runs upwardly, as from the calenders to the sheet-cutter, and the inclination of the web is apt to vary under different conditions of setting of the parts which deal with the web, and it therefore becomes desirable that the plane of the shafts 5 may be accordingly adjusted. To efiect such ad j ustment it is only necessary to loosen the brackets 3 on bar 2 and then tip the entire slitter structure till the plane of shafts 5 is substantially parallelwith the planein which the web of paper moves, after which the brackets are to be made firm again. For unchaugw ing conditions as to the plane in which the paper moves suchadjustment would of course not be called for.

Rotary motion is to be given to tumbling pinion 25, as by means of slack sprocket-chain on sprocket-wheel 26. Pinion 25 will therefore be in constant rotation, and when in the position indicated by Fig. 4, both sets of slitters being open and out of use, this pinion revolves idly. When aset of slitters is closed, the pinions 23 of that set become engaged and the two shafts of that set of slitters become thereby intergeared. Sim ultaneous with the closing of a set of slitters the pinion 25 is thrown over into engagement with the pinion 23 on the lower shaft of the closed slitters, whereby the closed slitters become positively driven. This effect is due to the fact that when hand-lever 14 is moved to close a set of slitters it moves lever 21 through medium of pin 22, and the movement of this lever turns rod 20 and throws the tumbling arm 24 over in the desired direction. The set of slitters which is open of course stands idle and ungeared.

By inspecting Fig. 5 it will be seen that spring 34 is nicely housed within the slittershell and tends to press the cutting-ring 31 to the left. When this cutting-ring engages, as usual, the face of the lower cutting-slitter, the spring presses the slitters into proper shearing engagement; but when a set of slitters is opened, the springs 34 will no longer be limited in their action'by the engagement of the top slitters with the bottom slitters, and consequently the top slitting-cutters will be moved into a plane beyond the plane of the face of their lower slitting-cutters. Hence when an attempt is made to close these slitters, the peripheries of the disks will make contact and refuse to go into interlapping closure. I therefore make provision by means of which the top slitters may be retracted en dwise before being closed, so as to permit of the interlapping. The shafts 10 of the top slitters are capable of moving endwise in their journal-boxes. The shifting-bar 18 engages both these shafts, and if that bar be pulled endwise of the slitter-shafts both slitfer-shafts will be moved endwise and the slitters will be in position for interlapping closure. Facial inclines 17 engage behind the shifting-bar, and the movement of hand-lever 19 thus causes the inclines to act on the shifting-bar and to pull the shafts endwise. Assume that the shifting-bar is capable of bodily movement and that the cams effect such bodily movement when the hand-lever 19 is operated. Proper movement of the hand-lever will therefore retract the top slitters, all of them, and allow either set to be closed. Restoring the hand-lever 19 to normal position would permit the shafts to resume their normal positions, and springs 36, Fig. 5, may be employed to effect such restoration of the shafts; but it is preferable to pivot the shifting-bar at its center and arrange the inclines 17 reversely, so that the action of hand-lever 19 when moved in one direction is to oscillate the shifter-bar and move one set of top slitters into normal position and retract the other set of top slitters, while the movement of the hand-lever in the other direction does the reverse. By this means the springs 36 may be dispensed with. Hand-lever 19 requires no detent, it being only requisite to throw the lever in the desired direction as far as the ends of the inclines will permit.

I claim as my invention- 1. The combination, substantially as set forth, of two slitter-shafts provided with slitting-disks and arranged upon one side of a Web of paper to be slitted, a pair of rocking housings supported upon the opposite side of said Web, slitter-shafts j ournaled in said rock ing housings and provided with slitting-disks adapted for coaction alternatively with the first-mentioned slitter-disks, and means for rocking said housings and bringing either of their sets of slitters into action with the opposing slitters.

2. The combination, substantially as set forth, of two slitter shafts provided with slitter-disks and disposed upon one side of a web of paper to be slitted, a pair of rocking arms mounted upon the other side of said web, journal-boxes secured to said rocking arms and arranged for adjustment thereon to and from said slitter-shafts, slitter-shafts journaled in said adjustable boxes and provided with slitter-disks, and means for rocking said arms and bringing one of said last-mentioned shafts toward one of the first-mentioned shafts and simultaneously separating the other two slitter-shafts.

3. The combination, substantially as set forth, of supporting-frame parts, a horizontal bar supported thereby, a pair of brackets mounted on said bar and arranged for adjustment rotarily thereon and provided with journal-boxes, two slitter-shafts journaled in the boxes of said brackets and provided with slitter-disks and disposed at one side of a web of paper to be slitted, rocking housings supported by said brackets on the other side of such web of paper, slitter-shafts journaled in said rocking housings and provided with slitting-disks, and means for rocking said housings so as to bring a selected set of slitters into conjunction.

4. The combination, substantially as set forth, of two slitter-shafts provided with slitting-disks and with spur-pinions, a pair of rocking housings, two slitter-shafts journaled in said rocking housings and provided with slitter-disks and spur-pinions, a tumbling journal-box, a spur-pinion carried by said tumbling journal-box and adapted by the movement of the journal-box to gear alternativeiy with the spur-pinion on said first-mew tioned slitter-shafts, and means for rocking said rocking housings and said tumbling j ournal-box to cause a selected one of said firstment-ioned spur-gears to engage with the gear of the tumbling jou rnal-box and with the gear one of the slitter-shafts carried by said rocking housings.

5. The combination, substantially as set forth, of a pair of slitter-shafts provided with IIO slitting-disks, a pair of opposing shafts prointo operative conjunction with] the other vided with slitting-disks adapted for coacslitter-shafts. tion with the first-mentioned disks, said lastmentioned shafts being arranged for enclwise GUSTAV KAFFENBERGER' 5 movement, and means, substantially as de- \Vitnesses:

scribed, for moving the last-mentioned shafts M. E. BATTLES,

endwise and for bringing them alternatively R. P. FLOOD.

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