US1572704A - Paper feed - Google Patents

Description

Feb. 9 1926. 1,572,704

c. E. CARPENTER PAPER FEED Filed May 28, 1923 4 Sheets-Sheet 1 INVENTOR Z M ii M m ATTORNEY Feb. 9,1926. 1,572,704

C. E. CARPENTER I PPPPPPP ED BY 5 z a: E a fn'roRNav Feb. 9 1926. 1,572,704

c. E CARPENTER PAPER FEED Filed May 28, 1925 4 Sheets-Sheet s ATTORNEY Feb. 9 1926. 1,572,704

0. E CARPENTER PAPER FEED Filed May 28, 1923 4 Sheets-Sheet 4 INVENTOR ATTORNEY Patented eh. Q, i926.

tame

reins.

CHARLES E. CARPENTER, OF NEW YQRK, N. Y.

PAPER FEED.

Application filed May as,

To all whom it may concern:

Be it known that it, CHAnLns E. CARPEN- ran, a citizen of the United States, and resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Paper Feed, of which the following is a specification. y The general object of the present invention is to provide improved mechanism, characterized by its simplicity and effectiveness, for connecting the end of a web of paper in a fresh or full size roll, to the web of papenbeing drawn from another roll, so as to permit a continuous feed of a web which is drawn from one supply roll until that roll is exhausted or ,practically exhausted, and is then drawn from a fresh roll without stopping the travel of the web or unduly reducing its normal speed of travel. 7

My invention is characterized by the provision of two sets of stationary bearings for the supply rolls arranged side by side so that the web feeding mechanism of the printing press or other mechanism to which the paper Web is fed may draw from a roll mounted in either set of bearings and provisions for. moving the web passing from a nearly exhausted supply roll mounted in either set of bearings against the peripheryof a fresh roll mounted in the other set of bearings, to thereby'start the fresh roll into rotation by frictional contact with the web drawn from the expiring roll, and to attach the web on the.

fresh roll to the web from the eigp-iring roll, as by means of paste previously applied to the outer end of the web of the fresh roll.

In a preferred construction the web shifting provisions comprise a pair of web shifting rolls journalled in asingle oscillating frame which may. be irotated' tocause one web shifting rollto' shift the web from the roll in one set of bearings into-contact with the roll in" the other set of hearings,- or to cause 'thepther web shifting roll to engage the web from the roll in the last mentioned setof bearingsand' move it into contact with the periphery of the roll in the first mentioned setofibearings. The invention is characterized .not only by its simplicity and reliability, but by the comparatively 1923. Serial lilo. 641,873.

small amount of space which it requires,

and by the fact that it may be readily construeted in various forms as required to accommodate the different dispositions of the two supply rolls convenient or desirable with different types of printing presses 'or different press room space conditions.

' The web shifting rolls, which are advantageously faced'with yielding material, contact withthe web along the full width of the latter, and the force with which either web shifting roll presses the Web from an expiring roll against the periphery of .a fresh supply roll, has no appreciable effect on the tension applied to the web ter in which I have illustrated and described a preferred embodiment of my invention.

Of the drawings:

Fig. 1 is an elevation of a portion of a newspaper press equipped with my invention; 7 m

Fig. 2 is an elevation angles to Fig. 1; v

Figs. 3, 4, 5,6 and 7 are diagrams representing successive conditions of operation and the corresponding adjustments of the web shifting mechanism.

Figs. 8 and 9- are elevations taken at right angles to one another showing a modi fied form of web shifting-mechanism;

Fig. 10 is a somewhat diagrammatic elevation of a second modification of the web shifting mechanism; I

Fig. 11 is an elevation part1 broken away and in section of a modifie form of taken at right the rocking frame supporting the web shifting rolls;

Fig. 12 is a partial elevation, and Fig. 13

is an end View of another modification of web shifting roll supporting frame; and

. Fig. '14 is a partial side elevation, and

Fig. 15. an elevation at right angles to Fi rolls; and

' printing rolls B serve as feed rolls for draw- 14 illustrating anotherarrangement for supporting and adjusting the web shifting Fig. 16 is an elevation of a portion of a web shifting roll supporting an adjusting mechanism.

In the drawings, and referring first to the construction illustrated in Figs. 1 to 7, inclusive, A represents. side frame members of a printing press. Each side frame A is provided with a bearing D for the corresponding end of the mandrel or shaft E of a web supplyroll F and with another similar bearing d for the corresponding end of the mandrel or shaft E of the roll 7. The

ing a web of paper over the usual compensating roll G into the press from a supply roll F or f as shown in Figs. 3 to 7.

As shown the bearings D are located at a level below that of the bearings d, and are horizontally displaced from the latter, but

this arrangement is not essential and may be varied as required to best suit the general design of the press or the space conditions in which the press is employed; The only essential relation of the bearings D and d is that the two sets of bearings should beside by side and separated from one another by a convenient distance. The distance between the two sets of bearings may conveniently be made just great enough to permit twofull rolls F and f to be mounted in the bearings D and d respectively at the same time, but where the available space is restricted the two sets of bearings may be spaced somewhat closer, in which case a fresh roll cannot be put in place in its bearings until the roll in the other side of the bearings is partially exhausted. The bearings D and d maybe of i the usual type employed to support the paper supply rolls of presses, and the frame work may be provided with the usual instru- -mentalities for getting the rolls into, and

holding them in proper position {m their bearings, and for putting the proper braking or tension force on the r lls. 4 .e

The web shiftingv mec anism in the form 50 illustrated in Figs. 1 to 7, comprises a. pair of parallel web shifting rolls H and h each having shaft portions at its ends which are Journalled in an oscillating frame. This frame as shown comprises agrock shaft I journlalled at its ends in the side frames A, and having arms I secured to it adjacent its ends at the inner sides of the respective side frames. The ends of the shafts of'the web shifting rolls H and h are j ournalled in the arms I.

ings provided on one of the side frames A. Advantageously the shaft J is provided with a hand wheel at each end so disposed and located as to readily permitof the rotation of the shaft'J by an operator standing at either side of the rolls F and f mounted in the bearings D and d, to adjust the web shifting'rolls H and iuback and forth into their different operating positions. The web shifting-rolls H and h are advantageously provided with yielding faces, and may comprise body portions formed. of rubber or the like. Advanta-geously, in some cases, printing rolls having bodies of the usual composition employed for that purpose, may .be employed as the web shifting rolls H and h.

In the contemplated'mode of operation of the apparatus shown in Figs. 1 to 7, the web shifting rolls H and it normally occupy the on the roll F, and thereafter supply the feed rolls B with web drawn from the rolls F, the rock shaft I is rotated to move-the web shifting rolls H and h from the positions occupied by themin Fig. 3 intothe positions in which they are shown in Fig. 4. Asthe web shifting roll it is thus swung about the axis of the shaft I, it moves the web being drawn from the roll 7 into contact with the periphery of the rollF'with such contact pressure as toistart the, roll F into rotation by the frictional engagement of the periphery of i the roll F by the web from the roll f. "When the consequent rotation of the roll F brings the outer end of the web on that 'roll into contact with the web from the roll f, the paste K unites the webs and breaks the grease or other fragile bond by whlch the outer end of the. web on the roll F was previously connected to 'the body of the roll, and the web from. the roll F is thendrawn betweentheyfeed rolls In practice the roll F is preferably so placed initially as to require nearly a complete turnof the roll F to bring the outer end of the web on that roll into contact with the web from the roll f, thus reducing the tension on the web from the roll f required to bring the roll F up to i the proper speed. When the web from the nearly exhausted roll 7 is attached to the web fro-m the fresh roll 'F, the web from the nearly exhausted roll may be broken orcut by the attendant in the usual manner, or if ithe operation is properly timed so that the shaft which is journalled in suitable bear-. prefiously used supply roll is almost entirely exhausted at the time the webtherefrom is connected to the fresh roll, the web tension may be relied upon to tear the web passing from the previously used roll f-free from. the mandrel E of that roll.

After the web feed from the roll F is thus started, the shaft I may be turned lllitfik from the position shown in Fig. 4 into that shown and when thebearings D and d are closer together, the fresh roll f may be put in place as soon as the diminishing diameter of the roll F permits the new roll 7' to be put in place without having its periphery engage the web passing from the roll F.

Fig. 6 illustrates the condition of the apparatus withthe roll F nearly exhausted,

and with the fresh roll f in place and with paste K applied to the outer surface of the outer end of this web. To start feeding from the fresh roll f, the rock shaft I is then adjusted in the counter clockwise direction to bring the web shifting rolls H and it into the positions shown in Fig. '7. As this adjustment of the web shifting roll occurs, the roll H engages the web from the nearly exhausted roll F and moves it into contact with the periphery of the fresh roll 7 thereby setting the latter into rotation and eventually causing its web to be united by the paste K to the web from the nearly exhausted roll F. As the roll F was previously set into rotation and had its web connected to the previously exhausted roll f.

As soon as the two webs are thus united, the web from the roll F, if the latter is not entirely exhausted, is broken between the roll H and mandrel of the roll F. Aften as the operation of the press continues.

In practice I find that when the simple mechanism disclosed, is operated in the manner described, it is possible to bring it the fresh roll up to a very substantial angular velocity during the permissible turning movementof the fresh roll of something less than 360, without subjecting the web from the roll nearing exhaustion to a dangerous tension. As a result it is possible to start feeding the web from a. fresh roll by the use of my invention while still operating the press at a considerable speed, and in some cases I consider it unnecessary to make any reduction in the normal speed of an ordinary newspaper press in starting to feed the press from a fresh roll, Those skilled in the art will readily recognize that my apparatus is substantially simpler in construction and operation than the mechanisms now in use for shifting the web feed from an exhausted roll to a fresh roll without stopping the web feed. A highly desirable characteristic of the invention is that it permits of practically any relative v may be employed with paper rolls the initial or maximum diameter of which varies substantially.

It will be obvious that many variations in the formof the web shifting mechanism may be made. For example, as shown in Figs. 8 and 9, the arms IA in which the web shifting rolls H and 'h are mounted may each be carried by a short stubshaft I which is journalled in the corresponding press side irame A and is providedat its outer end with a sprocket wheel I. The two sprocketwheels I are each connected by a sprocket chain L to a corresponding sprocket wheel Mi carried by a shaft M which extends across the machine and carries a worm gear M by which the shaft M may be rotated to thereby rotate the two arms TA in unison through the sprocket chains L and sprocket wheels I and M. The shaft M may be rotated manually but as shown is rotated by a shaft JA which carries a worm in mesh with the gear M and is driven by an electric motor U.

The general mode of operationof the up paratus shown in Figs. 8 and 9 is essentially the same as that of the form of apparatus first described. With the cooperating sets of bearings D and 03 arranged side by side as shown in Figs. 8 and 9, the web when drawn from either of the supply rolls will not engage either of the web shifting rolls in the normal condition of the latter at least except when the supply roll from which the web is being drawnis nearing exhaustion, whereas, in the arrangement first described the web is at all times in contact with the web shifting roll i which thus serves as a guide roll, but this difiershoe is 'due to the difference in the location of the bearings for the supply rolls rather than to any difference between the web shifting mechanism of Figs. 8 and 9.

In the modified form of apparatus illustratedin Fig. 10, the Web shifting roll H has its ends journalled 'infarms 0 carried at the opposite ends of the rock shaft the angular position of which may beadjusted manually by a lever P secured to one end of the shaft and provided with a bolt P cooperating with a stationary tooth segment Q to lock the rock shaft in any position-into which it may be adjusted. The web shifting roll It is carried by the arms of a rock shaft OA separate from, but similar to the rock shaft 0 and similarly provided with a lever P, bolt P and locking segment Q, for effecting its angular adjustments. The two rock shafts O and 0A are so relatively arranged that theweb shifting 1 roll h may be swung from its full line position toits dotted line position to bring the web from an expirin roll f into contact with the periphery of a roll F, while the web shift ng, roll H may be similarly adusted to move the web from an expiring roll into contact with the periphery of afresh roll f.

In the construction illustrated in Fig. 11, the rocking frame in which the web shifting rolls H and h are mounted comprises trunnion shaft extensions I carried by end members IB. The two. end members IBare rigidly connected by rods I and the rolls H and h which are hollow surround the rods I. The rolls H and h as shown each comprise a tubular core H of metal which sup ports the composition body or face of the roll. The rocking frame is provided with suitable bearings for the rolls H and h. As conventionally illustrated the bearings are in the form of collars I on the rods 1,

over which the ends of the tubes H extend,

though in practice I contemplate the use of roller bearings for the rolls Hand h.

It may be desirable in some cases at least, a

to have the axis of oscillation of the rocking frame in which the rolls H and h are mounted, at one side of the'plane including the axes of the rolls H and h, as in the construction shown in Figs. 12 and 13, which differs from 7 that shown in Figs. 1 and 2 in that the ends of the rock shaft 10 of Figs. 12 and 13 are thus displaced. The construction shown in Figs. 12 and 13 also differs from that shown in Figs. 1 and 2, in that the .body of the shaft IC is laterally displaced from the axis of oscillation of the rocking frame to avoid contact therewith of the web passing between the web shifting rolls.

In the modification illustrated in Figs. 14 and 15, the roll H is journalled at its ends in the upper ends of arms ID, one at each side of the machine, and each turning on a pivot or stud I'- projectingfrom theinner side of 'the corresponding side ,frame AA. Each arm ID is provided at its rupperend with a gear segment I in mesh with'ja s ur gear R carried by a shaftkR extending across the machineand journalled at its ends 1n the side frames AA. Associated with the shaft R are suitable provisions for angularly adjusting the shaft to give the roll H its desired adjustments. The provisions shown for this purpose comprise a worm gear R carried by the shaft R adjacent one end. The gear R is in mesh with a worm carried by an operating shaft J mounted on the corresponding side frame AA and provided with a hand wheel for manual rotation. The roll it in the construction shown in Figs..14-. and 15, is supported and operated by parts exactly similar to those provided for supporting and adjusting the roll H.

In the arrangements shown in Figs. 8, 9, 10, 11, Hand 15, the means for supporting and adjusting the web shifting rolls H and h comprise nothing which can come in contact with the web of paper passing between the web shifting rolls H and h in any adjustment of the latter, whereas, in the somewhat simpler constructions shown in Figs. 1,2, 12

' and 13, the'rocking frame supporting the web shifting rolls may be angularly adjusted into a position in which the web will engage the body of the shaft Ice 10. The extent of angular movement which must be given to the rocking frame to adjust the web shifting rolls H and ;h into theirdifferent required positions depend, of course, upon thegeneral design of the roll stand in which the supply rolls F and f are mounted and the direction in which the web passes from the supply rolls to the guide rolls or web advancing mechanism engaged by the web. Those skilled in the art will understand that different ones of the forms of construction illustrated, or other modifications in form which will occur to those skilled in the art, may be preferable for use in connection with different'types of roll stand. T

The fact that with my invention in any of the forms illustrated, the web shifting rolls may each engage the web across the full -width of the latter, and that the force with which a web shifting roll presses the web from the expiringroll against the periphery of the fresh roll does not appreciably effect the tension on the web being advanced,

makes it possible to secure a thoroughly good paste bond between the web from the fresh roll and the web from the expiring roll across the full width of the web. In starting to feed from a fresh roll, the latter, is preferably. started into rotation without subjecting it to the braking force usually employed in normal operation to retard the .full rotation and thereby put the-web un-' der the desired tension- As soon as the paste bond between the web from the new and 'old rolls is. formed and drawn into the printand gear drive illustrated in Figs, 1, 2, 8, 14 and 15, it may be advisable to provide a yielding element somewhere in the operating mechanism. For example, as shown in Fig. 16, the worm gear 1 instead of being rigidly connected to the shaft I, may be connected thereto by a spring T shown as in the form of a helix with one end '1" connected to the worm gear and the other end T connected to the shaft I.

While in accordance with the provisions of the statutes, I have illustrated and described the best forms of my invention now known to me, it will be apparent to those skilled in the art that many changes in form may be made without departing from the spirit of my invention, and that certain features of my invention may sometimes be employed to advantage without a corresponding use of other features.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In web feeding mechanism, the combination with web advancing means, of two sets of supply roll bearings each set being adapted to hold a roll of web material while the web of that roll is delivered to said advancing means, and mechanism for utilizing the pull of the traveling web from a nearly exhausted roll mounted in either set of said bearings to set into rapid rotation a fresh roll mounted in the other set of bearings, said mechanism comprising a pair of web shifting rolls located at opposite sides of the traveling web and having yielding web engaging surfaces, and means for adjusting said web from a roll being exhausted and. mounted in either set of said bearings against the periphery of a fresh roll mounted in the other set of bearings.

2. In web feeding mechanism the combination with web advancing means, of two sets of supply roll bearings, each set being adapted to hold a roll of web material while the web of that roll is delivered to said advancing means, and means for moving the travelling web being fed from a nearly exhausted roll mounted in either set of bearings into yielding contact with the periphery of a fresh r011 mounted in the other set of bearings to thereby set the fresh roll into rotation and effect a paste bond between the travelling web and the web of the fresh roll.

3. In' web feeding mechanism, the combination with web advancing means, of two sets of supply roll bearings each set being adapted to hold a roll of web material While the web of that roll is delivered to said advancing means, and mechanism for utilizing the pull of the traveling Web from a nearly exhausted roll mounted in either set of said bearings to set into rapid rotation a fresh roll mounted in the other set of bearings, said mechanism comprising a pair of web shifting rolls located at opposite sides of the traveling web and having yielding web engaging surfaces adapted to engage the traveling web across the full width of the latter, and means for adjusting said web shifting rolls to press the traveling web from a roll being exhausted in either set of said bearings against the periphery of a fresh roll in the other set of bearings.

4. In web feeding mechanism, the combination with web advancing means, of two sets of supply roll bearings each set being adapted to hold a roll of web material While the web of that roll is delivered to said advancing means, and mechanism for utilizing the pull of the traveling web from a nearly exhausted roll mounted in either set of said bearings to set into rapid rotation a fresh roll mounted in the other set of bearings, said mechanism comprising a pair of web shifting rolls located at opposite sides of the traveling web and having yielding web engaging surfaces adapted to engage the traveling web across the full width of the latter, means for adjusting said web shifting rolls to press the traveling web from a roll being exhausted in either set of said bearings against the periphery of a fresh roll in the other set of bearings, and means for adjusting said Web shifting rolls including a yielding pressure transmitting element.

Signed at New York, in the county of New York and State of New York, this 25th day of May A. D. 1923.

CHARLES E. CARPENTER.

Images