US2280224A - Carbon deleaving machine - Google Patents

Description

April 21, 1942 J. E. EUTH CARBON DELEAVING MACHINE Filed July 28, 1941 3 Sheets-Sheet 1 i Il April 21, 1942. J, E EUTH `2,280,224

CARBON DELEAVING MACHINE Filed July 28, 1941 3 Sheets-Sheet 2 April 21, 1942. J, E, EUTH 2,280,224

CARBON DELEAVING MACHINE Filed July 28, 1941 3 Sheets-Sheet 3 /zvemzor.' @y j/2n E'Zu'zz,

5M zam, ma 3 Patented Apr. 21, 1942 cannon DELEAvmG MAcmNE `John E. Enth, Chicago, lll., assigner to United Auitsographlc Register Co., a corporation of lllino Application Julyzs, 1941, serial No. 404,435

9 Claims.

This invention relates to machines for separating carbon strips from continuous-form stationery strips after a writing operation, and more particularly to a machine which is automatically controlled and will refold the stationery strips into separate zigzag folded packs.

The primary object of the invention is to provide an automatic-deleaving machine which may be placed in rear of a'tabulating machine or the like, and will automatically deleave and refold the stationery at whatever rate it is passed through the tabulating machine.

A further object of the invention is to provide improved guide-means for refolding the stationery under the influence of gravity and to provide'improved'guide-means for handling stationery of various widths.

Another object of the invention is a machine in which the carbon strips may be drawn through the machine and the friction between the carbons and stationery strips will.` be sufficient to propel the stationery into the guide device.

Another object of the invention is to provide feed-rolls for advancing the stationery to a rotary cutter and another set 4of feed-rolls for pulling the carbon laterally `over biased turnbars, both sets of feed-rolls and cutter mechanism being driven by a single motor which is controlled automatically by the tension of the paper advancing to the machine.

The invention is illustrated in a preferred embodiment in the accompanying drawings, i

which: l

Figure 1 is a broken side elevational viewof a machine embodying the invention; Figure 2 is a machine by means of a pair of rearsets-of feedrolls II -through a rotary cutter I2 and thence folded packs I1.

to provide l fragmentary top plan view of the same; Figure 3, a fragmentary side elevational view showing the automatic switch; Figure 4,a fragmentary view of the opposite side of the machine from that shown in Figure 3 and showing part of the gearing; and Figure 5, a fragmentary sectional view, taken as indicated at line 5 of Figure 2.

In the embodiment illustrated, a main frame is formed by cha rel members 6 connected by suitable cross-r 1 on which sheet metal curved guide-members 3 are laterally adjustable to vaccommodate various widths of stationery. A pack 9 of continuous-form stationery interleaved1 with carbon strips may be supported on asuitable shelf I0 and the stationery drawn into the rear of a tabulating machine from whence it may be drawn under tension tothe top of the deleaving machine. I

The stationery' is drawn into the deleaving As shown in Figures 2 and 5, a pair of rearwardly extending brackets I8 support and form bearings for carbon feed-rolls I9 which are driven from a shaft 29 by means of spur gears 2|. Above each driven roll I9 is a cross-bar 22, on which is loosely journalled a cylindrical presser roll 23. The weight of the rolls 23 provides sufflcient pressure on the carbon strips I4 to produce a satisfactory feeding operation. As shown in Figuresl and 5, a guide-member 24 is suspended from the brackets I8 and serves to guide the carbonstrips `I4 away from the frame of the machine and permits them to drop into a wastebasket 25. An adjusting lock nut 26 with an arm 21 permits the guide-member to be swung voutwardly to a desired fixed position.

The stationery is drawn into the deleaving machine, directly from a tabulating or typewritving machine, as stated above, by a feeding and cutting mechanism carried by plates 28 at the top and front of the machine. An electric motor 29 is mounted on a front bracket and drives a shaft 3 0 by means of a belt 3|. The shaft 30 is provided with a gear 32 which meshes with a gear 33 on the lower cutter roll shaft 34, as shown in Figure 3. V The gear 33 also meshes with a spur gear 35 on the upper cutter roll shaft 36 so that the cutter shafts will rotate together at the same rate of speed. The .cutter rolls I2 are laterally adjustable on the shafts 34 and 36, so that they trim off marginal binding strip 31 which may hold the carbon sheets I4 and stationery strips I5 together prior to the deleaving operation.

As shown in Figure 4, the opposite end of the shaft 34 is provided with a miter gear 38 which meshes with the miter gear 39 on the shaft 20 and drives` the carbon feed-rolls I9. The shaft 34 is also provided with a spur gear 40 which meshes with a` larger idler gear 4I`which meshes witha spur gear 42 on the lower feed-roll shaft 43. Fixed to the gear 42 is a spur gear 42a which feed-rolls will be driven in timed relation to Y serted under the feed rolls Il Withdraw the carbon laterally from the advancing stationery.

In order that the deleaving machine may be operated automatically in timed relation to an associated tabulating machine or any other machine which may be operating intermittently, an automatic control is provided which is responsive to the tension on the stationery beingV Lwhenever the tension in the strip is not suiiicient to hold arm 52 in the position shown in Figure 1, the arm will drop and cause the cam 49 to tip the mercury switch and thereby energize the motor and start the feed-rolls and cutter mechanism to operate. When suilicient ten.- sion develops in the advancing interleaved strip, it will raise the arm 52 and the motor will automatically be shut oiI by the mercury switch, as will be readily understood.

In the embodiment illustrated, the carbon is withdrawn laterally from the path of the stationery by means of turn-bars I3 which are removably mounted in a U-shaped rack 53 which has a supporting member 54 secured to a crossbar 55 extending between the channel members 6 of the main frame. I'he turn-bars are shown disposed at an angle of 45, so that the carbon may be withdrawn at right angles to the path of the stationery.

As shown in Figures 1 and 2, a special supporting guide is also provided for the stationery after it passes the turn-bars. A supporting bar 56 is iixed to the cross-bar 55 and frictionally grips a laterally adjustable rod 51, which has one end turned upwardly, as indicated at 58. A series of L-shaped guide-fingers 59, separated by a spacing washer 5l, may be gripped in position by a winged nut 5I. The lingers 59 serve to support one marginal edge portion of the stationery as it passes from the turn-bars to the guide-members 3. At the front of the machine, the ilrst passes over a table 6'2 which is slotted at 53 and is provided with laterally adjustable guides 54.

In the embodiment illustrated, only three continuous-form strips with two interleaved carbon strips are shown, although more turn-bars I3 are provided than necessary for such stationery. It will be understood, however, that the machine may be enlarged by providing additional guides and the deleaving operation performed in exactly the same Way.

The deleaving machine is loaded after suilicient stationery has travelled from the pack 9, and through the tabulating machine to permit a three or four foot length to extend beyond the feed rolls II. 'I'he end of the strip is inbe fed through by power and all of the strips projected over the turn-bars I3. The power to the motor is then shut oil.' by an ordinary line switch (not shown). 'I'he free end of the strips may then be turned back over the feed rolls II and the bottom stationery strip with its superposed carbon strip is threaded between the lower and the paper may' tum-bar I3 and the support 53. The stationery strip is threaded over the lower roll in the guide frame I6 and directed over the front guidemembers 8 to refoldng position. The adjacent superposed carbon strip is then turned over the lower bar I3 and directed between the nearest carbon feed roll shaft I9 and presser roll 23. In the same way, the next lowest stationery strip and its superposed carbon strip is threaded between the two lower turn-bars I3, and after the stationery strip is directed into the next chute, the carbon strip is turned up over the adjacent turn-bar and is threaded between the carbon feed rolls. The top stationery strip may be threaded straight through and directed into the third chute. After smoothing out the various strips, the line switch may be turned on again and the feeding controlled by the automatic switch.

In operation, the interleaved stationery is drawn by the rear feed-rolls II, under tension, into the machine. If the tension increases sufciently to raise the arm 52, the motor will be shut off by the mercury switch to avoid danger of tearing the paper. While the motor is operating the rear feed-rolls I I, the rotary cutters I2 and the carbon rolls 23 are driven in timed relation. 'I'he carbon passes over the turn-bars and is withdrawn laterally by the carbon rolls where they drop down over the guide 24 and into the wastebasket 25. The pulling of the carbon also helps to carry along the stationery so that it passes between the guides 8 Where it is directed down into zigzag folded packs Il.

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 in the art.

I claim:

l. A machine for deleaving carbon strips from interconnected continuous-form stationery strips, comprising: a frame to which marginally connected stationery strips may be drawn under tension; a rotary cutting mechanism mounted on said frame to trim oir a marginal binding edge of said stationery strips fed therethrough; feed-rolls for advancing the strips through the cutter mechanism; guide-means for directing the stationery strips into separate zigzag folded relation; power-means for driving said cutting mechanism and feed-rolls in timed relation; and control-means for energizing the power-means, said control-means having an arm resting on the strips advancing to said fjrame so as to make the control-means responsive to the tension on said strips.

2. A device as specied in claim 1, in which the feed-rolls, in rear of the cutter mechanism, engage only the carbon strips.

3. A device as specified in claim 1, in which angularly biased turn-bars are provided between the stationery strips so that the carbons may be drawn laterally from the path of the stationery strips, and the feed-rolls will engage the carbon strips after they have been deleaved from the said stationery strips.

4. A machine for deleaving carbon strips from interconnected continuous-form stationery strips, comprising: a frame over which continuousform stationerystrips interleaved with carbon strips may be drawn under tension; feed-rolls adapted to engage the carbon strips and separate them from said stationery strips; guide-means for directing the separated stationery strips into lfor controlling said drive-mechanism. v l 5, in which wardly under the influence 'of gravity; electric power-means for driving the feed-rolls; and `a advancing to the frame so that the starting and l zigzag folded relation -as theyadvance downinterctxmnecsted :continuous-'forni v -stationery strips, comprising: a frame over which continucontrol-switch for said power-means having an f operating arm resting on the interleaved 'strips' stopping of the machine is responsive to the tension on said strips.

5. A machine for deleaving carbon strips from interconnected continuousform stationery strips, comprising: a frame over which continu-l ous-form stationery strips interleaved with carbon strips may be drawn under tension; a pair of rear feed-rollsfor Aadvancing said interleaved d strips; a pair of carbon feed-rolls adapted vto engage the carbon strips and separate .them from the stationery strips; unitary electric drivemechanism .for driving both sets of 'feed-rolls lin timed relation; land an electric.v switch, responsive to .the tension in the interleaved stationery,

6. A device as specified in claim angularly biased turn-bars are disposed in advance of the rear feed-rolls so that the carbon strips vmay be withdrawn laterally from the stationery strips, and the carbon feed-rollsare horizontally disposed at a right angle to the rear feed-rolls.

ous-form stationery strips interleaved with carbon strips may be drawn under tension;` a pair of rear feed-rolls for advancing lsaid interleaved strips; a pair of carbon feed-rollsv adapted to engage the carbon strips and separate them from the stationery strips;` angularly biased turn-bars in advance of therear feed-rolls for directing the carbon strips laterally out of interleaved relation; guide-means for directing the separated stationery strips vinto' zigzag folded relation as they advance downwardly under the influence of gravity; -electric power-means for driving the f' feed-rolls; and a control-switch for said powermeans vhaving an operating armv resting on the interleaved strips advancing to the frame so that the starting'and'stopping of the machine 1s responsive to the tension on said strips.

8. Avdevice as specied in' claim 7, in which the guide-means includes a` plurality of curved sheet metal Strips which are laterally adjustable 7. A machine for deleaving carbon strips `from on cross-barsprovided on' the frame of the ma- 9. A device as lspecified in claim 7, in which a U shaped adjustable guide is provided, adjacent tothe carbon feed-rolls, to direct the carbon strips laterally away from the machine`

Images