US749985A - Ho model - Google Patents

Description

No. 749,985. PATENTE'D JAN. 19, 1904.

A. B. DICK & E. BRASSEUR.

PAPER FEEDING APPARATUS. 1 4 APPLIOATION FILED AUG. 1, 1903. I

no MODEL. I 2 SHBBTS,SHBET 1.

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No. 749,985. PATENTED JAN. 19, 1904, A A. B. DICK & E. BRASSEUR.

PAPER FEEDING APPARATUS.

APPLICATION FILED AUG. 1, 1903.

NO MODEL. 2 SHEETS-SHEET 2 UNITED. STATES Patented January 19, 1904.

PATENT OFFICE.

ALBERT B. DICK AND ERNEST BRASSEUR, OF CHICAGO, ILLINOIS, ASSIGNORS TO A. B. DICK COMPANY, OF CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

PAPER-FEEDING APPARATUS.

SPECIFICATION forming part of Letters Patent N0. 749,985, dated January 19, 1904.

Application filed August 1, 1903.

To all whom it may concern.-

Be it known that we, ALBERT B. DICK, aciti- Zen of the United States, and ERNEST BRAS- SEUR, a subject of the King of Belgium, both residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Paper-Feeding Apparatus, of which the following is a specification. The object of the invention is to provide an automatic paper feeding apparatus which shall consist of few parts, compact'and durable in form, efiicient in use, and one in which the feeding of more than one sheet at a time shall be precluded.

A further object is to provide apparatus of this description which shall be relatively cheap of manufacture, which 'may be readily adjusted in use, and which shallafford ready provision for repair and renewal of interchangeable parts.

In carrying out the invention in an approved form we employ a series of rolls in juxtaposition to which may be placed a paper-tray upon which the sheets to be fed may be arranged and a bed or other device upon which the sheets fed by the rolls may be passed to the printing or other machine in which they are to be subsequently treated. Preferably these rolls are actuated from a common point, and, if desired, power may be transmitted from the mechanism in connection with which the feeding apparatus is employed. The feeding-rolls may be given either an intermittent or continuous motion in the direction of the printing or other apparatus, but combined with one or more of such rolls we employ a paper-stopping device, such as another roll or rolls, to which motion, also either intermittent or continuous, may be imparted, but in a contrary direction or a direction opposite to the printing or other apparatus. Between this roll (hereinafter referred to as the reverseroll) and one of the feed-rolls the paper to be fed is passed, the pile being in juxtaposition thereto, but only one sheet thereof (in the present instance the lowermost sheet) be- Serial No. 167,932. (No model.)

ing permitted to pass between the reverse-roll and the feed-roll coacting therewith.

In a preferred form-in which the invention may be embodied, but to'which such inven-' tion is not limited, we employ a system 'of three rolls operatively connected with the source of power above mentioned, the connections being so arranged as that there will be imparted to two of these feed-rolls an intermittent movement in the direction of the printingmechanism and to the third a continuous movement in the same direction. Co'- acting with one of these intermittently-operating feed-rolls is the continuously-rotating reverse-roll, between which and said feedroll the paper to be fed is designed topass. Said feed-roll and said reverse-roll are preferably adjustable relatively to each other in order toprovide for variation in the thickness of the sheets to be fed between the same.

In the drawings we have illustrated a form in which the invention may be advantageously applied to a stencil-printing apparatus, the feeding mechanism above referred to being adapted to pass the sheets of impression-paper therefrom and to the printing mechanism.

In the drawings, Figure 1 is an end view; Fig. 2, a side elevation looking from the left of Fig. 1; Fig. 3, a vertical section on the line 3 3, Fig. 1; and Fig. 4c a similar section on th line 4 4 of Fig. 1.

Referring to the drawings, in which similar letters denote corresponding parts, A A designate the side members of the frame, here shown as mounted upon a suitable base A Said frame and base may, if desired, be common to the paper-feeding apparatus and the printing or other mechanism with which such paper-feeding apparatus is combined. In the side member A of the frame is journaled the shaft a, upon which are mounted the sprocketwheel a, the continuously-toothed gear (0 the large stop-wheel a and the mutilated gear a, all having continuous rotary movement with the sprocket-wheel a. Coacting with the continuous gear a is a smaller gear a, mounted upon and rotating with the shaft 0, carrying the roll C, to which is thereby imparted a continuous movement in the direction of the print ing mechanism. Also mounted upon and secured to the shaft 0, but within the side member A of the frame, is a gear 0 Upon this shaft may also be mounted, if desired, a pulley coaeting with a belt for the purpose of transmitting movement to suitable rolls or other devices designed to act upon the sheets after they have been fed in the manner herein described. Such rolls or other devices not being part of the present invention will not be herein described in detail.

6 designates the shaft of the feed-roll E. The ends of this shaft are journaled in the side members A A of the frame, that end adjacent to the side member A extending through the same and being provided outside said side member with a gear a and a stop-wheel 0 both of which are keyed or otherwise secured to said shaft e. As clearly shown in Fig. 1, the gear 0 lies directly under and in cooperative relation to the mutilated gear a, while the small stop-wheel 6 lies directly under and in cooperative relation to the large stop-wheel a. The small stop-wheel e is provided with an car 6 having a concave surface corresponding to the curvature of the periphery of the large stop-wheel a This concave surface rides against the periphery of the latter during the major portion of the revolution of said large stop-wheel a The latter is provided, however, with notches or recesses a a, each forming shoulders on the periphery of said wheel. When during the revolution of said large stop-wheel a the notch (6 reaches the car 6 the edge of the latter enters said notch, so that the small stop-wheel is caused to rotate with said wheel 6& until said ear is again brought into juxtaposition with the periphcry of the latter at the notch a whereupon the concave periphery of the ear e of the small stop-wheel again slides in contact with the periphery of the large stop wheel a The teeth of the mutilated gear a cover a portion of the periphery of that wheel corresponding to the distance between the notches a a. These teeth therefore are brought into operative relation to the teeth of the gear 6 the moment the notch a on the large stop-wheel a and the ear (2 of the small stop-wheel 6 come into engagement, with the result that by means of said mutilated gear the feed-roll shaft 6. upon which both the gear 6 and small stepwheel a are mounted, will be rotated.

E designates a clutch on the shaft a, whereby after said shaft a has been brought to a stop the roll E may still be revolved thereon by the pull of the paper fed over said roll, as will presently be described.

F designates a bar, the ends whereof are mounted in the upwardly-extending portions f of the side frames A A. Secured to or formed integral with this bar are the depending arms f f.

G designates the reverse-roll shaft, one end whereof is mounted in the end of the arm f depending from the bar F. The other end of said shaft passes through a U-shaped recess in the end of the arm f, and keyed or otherwise secured to it at this end is a gear 9, meshing with a larger gear H, loosely carried by the shaft 6 of the intermittent feed-roll E and which in turn is driven by the gear 0 on the shaft of the constantly-moving roll C. Regardless, therefore, of whether the shaft of the intermittent roll E be moving or still there is a constant movement of the gear H, mounted on that shaft, and therefore of the gear 9 of the reverse-roll shaft G.

The paper-stopping device is here shown as comprising the reverse-rolls I. Instead of employing a reverse-roll continuous from end to end like the feed-roll E we prefer to employ two or more separated reverse-rolls, and these'are here shown as mounted upon the shaft Gr within the housings t, adjustably carried by the bar F. The forward edges of these housings serve to level the advancing edge of the pile. Preferably the reverse-roll shaft G will, as shown in Figs. 3 and 4, lie not directly above the feed-roll shaft e, but slightly forward of the same-2'. 6., toward the paper pile whereby greater efiiciency of the re verse-rolls is obtained in their coaction with the sheets above the lowermost sheet of the pile. Thebar F is therefore suitably adjustable in a horizontal plane, as are also the reverse-rolls I and the hangers J, in which with the arms f f the reverse-roll shaft G is mounted.

Z designates the shaft of an auxiliary intermittent feed-roll or separator-roll L. This shaft is journaled in the side members A A, one end extending through the side member A and being provided outside the same with the gear Z, meshing with an idler gear l, which in turn meshes with and is driven by the gear 6, carried by the shaft 6 of the intermittent feed-roll E. It will therefore be seen that both the intermittent feed-roll E and the auxiliary intermittent feed-roll L move and are still together. Like the intermittent feedroll E and its shaft, the auxiliary feed-roll L and its shaft are provided with a clutch, so that when the shaft has been brought to a stop the roll may still be rotated upon such shaft under the pull of the paper passing over the same.

In practice we prefer that the peripheries of the rolls C, E, and L shall be of rubber or other suitable substance and that in addition the periphery of one of these rollsas, for instance, the roll Lshall be longitudinally fluted, as illustrated in Fig. 4:.

M M designate gravity-rolls, preferably of metal and provided with milled peripheries. These are mounted upon a shaft 127., the ends whereof are journaled in hangers pivoted at m to the downwardly-projecting arms f f of the bar F. These gravity-rolls are arranged directly above the feed-roll C, their purpose being to hold the sheets in' contact with the lastnamed roll.

In practice a suitable paper-tray (not shown) will be employed, its end terminating near the intermittent feed-roll L. Upon such tray and upon said roll L the pile of paper is placed and pressed forward against and below the forward-curved corners of the housings of the reverse-rolls I. Power being appliedvas, for instance, by meansof the sprocket-wheel or other suitable connectionthe feed-roll C is set in continuous operation and the feed-rolls E and L in intermittent operation, thelatter being due to the coaction of the stop-wheels a and At each movement of the feed-rolls L and E the lowermost sheet of the pile is fed forward over the feed-roll L and between the feed-roll E and reverse-rolls I to a point Where it is seized and passed farther forward by the continuously-operating feed-roll C and the gravity-rolls M. The adjustment of the intermittent feed-roll E and the reverse-rolls I relatively to each other is such as to permit but a single sheet to pass between the same. Said reverse-rolls therefore operating in a direction contrary to that of the intermittent feed-roll E act upon the sheets above the lowermost sheet, pressing them backward, so as to preclude their being carried through the feeding apparatusc'. e. between the intermittent feed-roll E and said reverse-rolls. Should the sheets be of such length as that each intermittent movement of the feed-rolls E and L will not entirely pass the lowermost sheet beyond the point of coaction between said feedroll E and the reverse-rolls I, the continuous movement of the roll C will nevertheless draw such sheet along through the feeding apparatus, the clutches on the shafts of the intermittent rolls E and L permitting these rolls to be operated after the shafts have become still by the pull of the sheet.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is as follows:

1. In paper-feeding apparatus, the combination with a bed adapted to support a pile of sheets in a fixed plane and afeed-roll mounted below saidpile and coacting successively with the lowermost sheets thereof, of a paper-stopping device in operative relation to said feedroll and between which device and roll the paper to be fed is passed, and means for imparting movement concurrently to said device and said feed-roll, substantially as set forth.

2. Inpaper-feedingapparatus, the combination with a bed adapted to support a pile of sheets and a feed-roll mounted below said pile and coacting successively with the lowermost sheets thereof, of a rotary paper-stoppingdevice in operative relation to said feed-roll and between which device and roll the paper to be fed is passed, and means for imparting movement to said device, substantially as set forth.

3. In paper-feedin g apparatus, the combination with a bed adapted to support a pile of sheets and a feed-roll mounted below said pile and coacting successively with the lowermost sheets thereof, of an adjustable rotary paperstopping device in operative relation to said feed-roll and between which device and roll the paper to be fed is passed, and means for imparting movement to said device, substantially as set forth. I

4:. y In paper-feeding apparatus, the combination with means for supporting apile of sheets in an approximately horizontal plane and a feed-roll mounted below such pile and coacting successively with the lowermost sheet thereof, of a reverse-roll in cooperative relation to said feed-roll, and means for operating said feed-roll in one direction and said reverseroll in the opposite direction, substantiallyas setforth.

5. In paper feeding apparatus, the combination with means for supporting a pile of sheets in an approximately horizontal plane and a feed-roll mounted below such pile and coacting successively with the lowermost sheet thereof, of means for feeding such lowermost sheet to said feed-roll, a reverse-roll in cooperative relation to said feed-roll, and mechanism for operating said feed-roll in one direction and said reverse-roll in the opposite direction, substantially as set forth. 1

6. In paper-feeding apparatus, the combination with means for supporting a pile of sheets in an approximately horizontal plane, of a feed-roll and a separator-roll mounted below such pile and coacting successively with the lowermost sheet thereof, a reverse-roll in cooperative relation to said feed-roll, and means for operating said feed and separator rolls in one direction and said reverse-roll in the opposite direction, substantially as set forth.

This specification signed and witnessed this 26th day of June, 1903.

ALBERT B. DICK. ERNEST BRASSEUR.

Witnesses: i

W. G. ARN LD, R. R. HARRINGTON.

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