US757484A - Paper-feeding device. - Google Patents

Description

No. 757,484. ATENTE'D APR.19,1904.

' T. G. & J..E. MGGIRR.

PAPER FEEDING DEVICE.

APPLIGATION FILED DBO. 22, 1902.

0 MODEL. v

UNITED STATES Patented April 19, 1904.

PATENT OFFICE.

THEODORE G. MoGIRR, OF NEW.YORK, AND JOSEPH B. MOGIRR, OF BROOKLYN, NET V YORK; SAID THEODORE G. MOGIRR ASSIGNOR TO AMERICAN RAPPING AND BOX MACHINE COMPANY, OF NEW YORK, N. Y.

PAPER-FEEDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 757,484, dated April 19, 1904;

Application filed December 22, 1902. Serial No. 136,091. (No model.)

To all whom it may concern:

Be it known that we, THEODORE G. MGGIRR,

residing at 211 Vest One Hundred and For-.

stacked one on another and placed upon a suitable support or platform.

Our invention is adapted more particularly to those varieties of paper-feeding devices where sheets are automatically fed-as, for instance, in printing-presses.

The object of our invention is to provide an automatic paper-feeding device that will be capable of dischargingasingle sheet of paper from the stack, the paper registering before going into contact with the printing-roll.

In the drawings, which form a part of this application, Figure 1 is a sectional view of the paper support and feeding means. Fig. 2 is a plan view of the same. Fig. 3 is a detail modification of feed mechanism, and Fig. 4is another modification.

In all the figures corresponding parts are designated by corresponding reference characters.

The support or platform 1 has suitable side walls .to hold the paper in position anda bottom or base plate 2, having a series of openings therein, as at 3, through which protrude the paper-feeding means 4. The latter may consist, as is shown in Fig. 1, of sets of segmental rolls secured to the several shafts. The segment-rolls 4 have a rubber or other frictional circumference or face 5 to engage the paper 6, said rolls 4 operating through the openings in the platform 2 in such a manner that when they make a revolution the rubber-covered frictional face 5 engages the lower paper, and while it grips the bottom sheet italso lifts the 'pile from the platform or support, which ac- Over the discharge-rolls 7 and operating therewith are stationary eccentric retainingrolls 8, having theirface or outer circumference covered with rubber or other suitable material, which will exercise a drawing tendency upon the paper as it passes beneath them. These retaining-rolls 8 by reason of their axes being eccentric to their outer circumference can be moved into any degree of frictional contact with the high-speed discharge-r0117 that may be necessary to prevent a second sheet of paper from going through or between the two sets of rolls 7 and 8.

If during the operation of the device two sheets should stick together and be moved from the pile, the friction betweenthe bottom sheet andthe roll 7 will be much greater by reason of the character of the surface of roll 7 than the friction between the bottom sheet and the sheet immediately above it, so that as the last-named sheet meets roll 8 it will be arrested for the time being until the segmental rolls4 again act to feed a sheet, when they will feed the previously-arrested sheet to the action of the roll 7 a To the forward end of the feeding device is arranged a bracket 9 oneithervside of the same and having a rod 10 extending downwardly through each bracket, each provided with a collar 11 and a coil-spring-lEZ. The two rods 10 are preferably made integral with a connecting-rod 13, while secured thereto or aflixed in any suitable way are two depending arms 14, which when in their lower position protrude below the travel of the paper from the feeding device. The collar 11 and the spring'12 hold the fingers or arms 14 always in position to arrest the forward movement of the sheet and subsequently release and deliver it at a predetermined time to the machine for further operation.

Secured in the frame of the feeding device 1 is a rapidly-revolving roll 15, which engages the roll 16 on the arm 17, said arm being suitably pivoted to the frame and having its rear end engaging in a cam 18, as shown in Fig.

2, while on the forward end of said arm is a stud or projection 19, which is outside of the path of travel of the paper, but in line with the depending rods or arms 10. The said stud or projection 19 raises the rod 10, and thereby the depending arms 14.

After leaving the rolls 7 and 8 the paper is carried upon belts or tapes 20 on the rolls 21 and 22, where it is carried up to and its further progress is arrested by the depending arms 14, which hold the same in proper position and in proper alinement to be discharged. Thus it will be seen that at a predetermined time the cam 18 will operate the arms 17 and cause the fingers 14: to withdraw and at the same time bringing into contact the rolls 16, carriedby the arms 17, with the continuous rapidly-revolving roll 15, by means of which the paper is fed either to a press, ruling. or other machine. Every sheet is taken from the same place each time, whereby a perfect register is so as to operate the arm 17 at the proper time for the particular purposes to which the de- I vice may be employed.

In Fig. 3 is shown a modified form of dej vice in which the feeding means consists of a series of concentric rolls 23, such concentric rolls to take the place of the segmental rolls shown in Fig. 1. In this form the concentric rolls 23 have a working travel to advance the sheet of paper to the discharge-rolls 7 and the retaining-rolls 8, these rolls 23 having a suitable frictional feeding-face and are rotated and stopped in such a way that their influence upon the paper is identical to that described by the segmental rolls 1. In this instance instead of going out of engagement with the paper the said rolls 23 remain inactive while the discharge-rolls 7 are finishing the discharge of the sheet, the effect being precisely similar in every respect upon the paper. The

evident that the continuous length of the combined cam-faces 26 may be made greater or less to accomplish the desired feed of the paper, as will appear hereinafter.

A shaft 27, having thereon a gear 28, which is free to turn upon said shaft, has projecting from its inner face a spring-actuating device,

as follows: The gear 28 at a suitable place has an opening therein into which is inserted a stud 29, provided with a collar, while the opposite free end extends through a suitable nut, which not only secures the spring 30 between the nut and the collar, but permits of adjustment, so that the tension on the spring can be made greater or less as the circumstances may require, while to the free end of the stud is secured a frictional block or shoe 31.

Secured to the shaft 27 and adjacent to the gear 28, just described, is a disk 32, having a channel-way 33 therein of just a little smaller dimension than the shoe 31, said disk being secured in any suitable way to the shaft. Thus it will be seen as the gear 28 rotates it causes the stud 29 to ride upon the cam-flanges 26, which have been previously set so as to regulate the distance to be traveled by the roll 23, and thereby depress the stud 29, and the shoe 31 will frictionally lock said disk 32 to the gear 28, because of the action of said cam, and cause the shaft to revolve as long as the stud is in contact with said cam, and thereby feed the paper. Thus it will be seen that the length of time the gear and the disk are in engagement depends upon the length of the cam-face presented to the stud 29, of course it being understood that the rolls 23 travel through the same arc as the disk 32, both of which canbe regulated by the cam 26, before mentioned.

In Fig. 4 is shown another form or modification, whereby the sheets of paper are fed by concentric rolls, as was described in Fig. 3; but the means for actuating the rolls differ in the following particulars: The shaft carrying the rolls 7 has on its outer end a disk 34:. On the face of said disk there is a segment-slot 35, into which is fitted means for retaining at a desired point one end of a link 36. In this form of feeding device all the several shafts under the base or platform 2 have large gears keyed thereto with idlers interposed between them, as shown in dotted lines, Fig. 1. Only the first one of the series would have two gears instead of one, the outer one being free to turn on the shaft 37 and carries on its face a suitable number of pawls 38, which engage a ratchet-wheel 39, which is secured to the shaft 37. The outer gear 40 meshes with a rack 11,

which is supported in any suitable way, so that by the operations of the disk 34 motion is imparted to the rack through the link 36, above referred to. Thus it will be seen that J IO regulated by the link with respect to the segment-slot 35.

While that form of device which is preferred is shown, yet we do not wish to be limited to that particular form shown, as those skilled in the art can vary the same without departing from the essential features herein shown. For instance, the belt may be dispensed with in some instances and the paper fed along a flat surface until it contacts or is arrested by the arms 14. Again, our device is-applicable to work from the top of a pack or mass of paper instead of from the bottom, as shown, in which case only a reversal of mechanism would be necessary where it is so desired, all of which modifications or arrangements come within the purview of our invention. Again, with the form shown in Figs. 3 and 4 the walls and supports shown in Fig. 1 could be entirely dispensed with, in which case the paper would remain supported upon the rolls only.

What we claim is- 1. In a paper-feeding device, the combination of a support for a pile or mass of paper or other material, said support having a stationary bottom or supporting-floor provided with a series of openings, a series of rolls having a part of their circumferential surface adapted to project through the openings in the floor during the rotation of said rolls to thereby lift the mass of paper or material from the stationary floor and feed a sheet forward, and means for rotating said rolls.

2. The com binati on with means for sup porting a pile or mass of paper or other material and selecting and feeding forward the suc cessive sheets to a discharge-roll one after another, of an eccentrically-mounted roll for regulating the discharge, of means for automatically arresting the movement of these sheets, and subsequently releasing and delivering them at predetermined intervalsr 3. The combination with meansfor supporting a pile or mass of paper or other material and selecting and feeding forward the successive sheets, a gaging device situated abovesaid means and comprising a roll eccentrically mounted, means for supporting and conveying such successive sheets in their further move-- ment, and means for automatically arresting the movement of these sheets and subsequently releasing and delivering them at predetermined intervals.

i. In a paper-feeding device, the combina tion of a support for a pile or mass of paper or other material, said support having a stationary supporting-floor provided with aseries of openings, 2. series of rolls having segmental portions adapted to project through the said openings in the floor to raise or lift the entire mass or pile of material from the stationary floor and feed therefrom a single sheet, and means for'rotating said rolls.

5. In a paper-feeding device, the combination of a stationary support for a pile or mass of paper, a series of rolls for intermittently bodily lifting said pile or mass and selecting and moving from said pile or mass a single sheet, a high-speed feeding-roll adjacent the series of rolls for engaging the selected sheet and feeding it rapidly from the pile or mass, and a gaging device disposed adjacent the high-speed roll for preventing the discharge of more than a single sheet.

6. In a paper-feeding device, the combination of astationary support for a pile or mass of paper, a series of rolls for selecting and moving from said pile or mass asingle sheet, a high-speed feeding-roll adjacent the series of rolls for engaging the selected sheet and feeding it rapidly from the pile or mass, and an eccentrically-mounted roll for regulating the discharge of sheets from the pile or mass.

7 In a paper-feeding device, the combination of a support for a pile or mass of paper or other material, said support having a stationary floor provided with a series of openings, a series of rolls having a part of their circumferential surface adapted to project through the openings in the floor during the rotation of said rolls to thereby lift the mass of paper or material from the stationary floor and feed a sheet forward, a high-speed feeding-roll for drawing the sheet from the pile or mass and means for rotating said rolls.

8. The combination of a support for a pile or mass of paper or the like, a series of rolls having segmental portions to engage and feed sheets of paper at intervals, means for operating the segmental rolls, an eccentricallymounted roll for regulating the number of sheets to be fed by the segmental rolls, means for arresting the forward movement of the sheets, and devices having portions outside the path-of travel of the paper adapted to engage said means at suitable intervals to move the same and permit the sheets to pass.

' In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

D. M. FRELEIGH, W. NIETSCHKE.

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