US1301123A - Change web-roll mechanism for printing-presses. - Google Patents

Description

s. G. eoss.

CHANGE WEB ROLL MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED NOV-13. I916.

Patented A r. 22,1919.

4 SHEETS-SHEET I.

Cl iANGE WEB ROLL MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED NOV-13.1916.

Patented Apr. 22, 1919.

4 SHEETS-SHEET 2- k 4 k Wm may m CHANGE WE'B ROLL MECHANISM FOR PRINIIN EEEEEEE s.

EEEEEEEEEEEEE 3- S. G. GOSS.

CHANGE WEB ROLL MECHANISM FOR PRINTING P RESSES.

APPLICATION FILED NOV. 13 I9I6.

Patnted Apr. 22, 1919.

I II

4 SHEETSSHEET 4- siren isms SAMUEL G. GOSS, OF GLENCOE, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CHANGE WEB-ROLL MECHANISM FOR PRINTING-PRESSES.

Application filed November 13, 1916.

To all whom it may concern:

Be -it known that I, SAMUEL G. Goss, a citizen of the United States, and a resident of Glencoe, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Change Web-Roll Mechanisms for Printing-Presses, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to change web roll mechanisms for printing presses and it has for its object the provision of a new and improved form and arrangement of mechanisms by which the web from a fresh roll in one position upon its framework is spliced to the web being fed to the press from another roll in another position, this result being effected preferably without slowing down the press. It is one of the objects of my invention to rovide a stripping mechanism which is effective to strip the leading end of the web from a fresh roll and to direct such web, in cooperation with suitable guiding means, into the bite of two pressing rollers which effect a suitable splicing of the two webs. It is another object of my invention to improve devices of this general type in sundry details hereinafter pointed out. The preferred means by which I have accomplished my several objects are illustrated in the drawings and are hereinafter specifically described. That, which I believe to be new and desire to cover by this application is set forth in the claims.

In the drawings Figure 1 is a side view of my improved mechanism, looking toward the ends of the web rolls;

Fig. 2 is a fragmentary view of the lower web roll as seen from the right in Fig. 1;

Fig. 3 is a diagrammatic view of a portion of the mechanism of Fig. 1, showing a changed position of some of the parts;

Fig. 4 is a fragmentary view showing the construction of the means for supporting and driving the belts by which a fresh roll is set into rotation;

Fig. 5 is a diagrammatic view showing a modified form of construction;

Fig. 6 is a view similar to Fig. 5, but showing a changed position of the parts:

Figs. 7 and 8 are views similar to Figs. 5

Specification of Letters Patent.

Patented AprJ22, 1919.

Serial No. 131,160.

and 6, but showing another modified form of construction; and

Figs. 9 and 10 are details, being views of means for driving in either direction the belts that are shown in Figs. 5 to 8, inclusive.

Referring to Figs. 1- to 4 in which corre- '18-19, respectively, mounted in suitable bearings 2021 supported upon the frame 15 substantially at the inner ends of arms 2223, respectively. The web 24 from the upper roll 16 is shown extending from the roll into the bite of two rollers 252-6 mounted in the framework 15 upon transversely-extending shafts 27-28, respectively. The rollers 25-26 are to be driven at the same surface speed as that of the web, but it is not believed to be necessary to illustrate such driving means.

When the web is being fed to the printing press or other web machine from a web roll in either of the two positions occupied by the rolls 161 7, a fresh roll is inserted upon a suitable spindle in the other position. Before the web is entirely exhausted from the roll inusc. the end portion of the fresh roll is trimmed and secured to the body of the roll by any suitable means adapted to be readily released when a slight force is applied thereto for that purpose. The end of.

the web is preferably secured in position by means of stickers or pastors 29 which are to be formed of light paper which is adapted to be torn across easily. Paste or gum of any suitable type is applied to the end portion of the web upon its outer face, substantially as shown at'30 in Fig. 2, being applied in sections whereby intermediate spaces are left by reason of which the driving means for the roll and the controlling means for the web may contact such parts without coming in contact with the adhesive material. Suitable strippers as hereinafter described are provided adapted to pass between the roll and the end of the webas the roll rotates for releasing the end of the web from the body of the roll. When the web is substantially exhausted from the old roll,

the new roll is set into rotation at the same surface speed as that of the web running from the old roll to the Web machine. Tnasmuch as the strippers are normally held out of engagement with the fresh roll ashereinafter described, the roll may be started into rotation when desired and maintained in rotation in readiness for splicing the leading end of the fresh roll to the web from the old roll. The strippers are then moved at the desired moment toward the fresh roll, serving in due time to pass between the end of the web and the body of the roll for releasing the end portion of the web from the roll. When the gummed end of the web of. the fresh roll is thus released, it

shoots outward along the strippers and along suitable guides into contact with the web from the old roll between the rollers 25-26, being drawn with the old web through the press or other web machine.

For stripping the end of a web from a roll and for directing the web from the fresh roll into contact with the other web between the rollers 2526, T have provided two strippers 3132 swingingly mounted upon the shafts 27-28, respectively, adapted to be swung toward and from a plurality of guiding devices 33 fixed upon a transversely-extending bar 34. Each of the strippers 31 32 comprises arms at its ends by which it is swingingl mounted about its shaft 2728. The stripper 31 is connected b means of a spring 36 with a suitable portion of the framework 15 such spring tending to raise the strip-per 31 into the position shown in Fig. 1. A latch 37 pivotally mounted upon the frame 15 cooperates with a notched collar 38 carried by one of the arms 35 of the stripper 31 for holding the said stripper 31 in its lowermost position against the action of the spring 36. A latch 39 also mounted upon the frame 15 serves in cooperation with a notched collar 40 upon one of the arms 35 of the stripper32, to hold the stripper 32 in its raised position as shown in Fig. 1. The latches 37-39 serve to hold the strippers 31-32 respectively well out of contact with a fresh roll which may be rotated by the means hereinafter described without danger of such strippers coining in contact with the end portion of.

the web. When, however, during the rotation of a fresh roll, it is desired to have the end of the web of such fresh roll released for the unwinding of the web,-the corresponding latch 37 or 39 may be released from operative engagement by a pull upon a cord 41 or 42 as the case may be.

The means for rotating a fresh web roll upon one of the spindles 18-19, when such roll has been prepared after the manner illustrated in Fig. 2, comprises a shaft 43 adapted to be drivencontinuously from the press or other machine with which the Web is being used. The shaft 43 is provided with a bevel gear L-LL which'meshes with another bevel gear 4C5 fixedly mounted upon a shaft 4:6. The shaft 46 in turn is connected by means of gears et'P-iB with a shaft 49 revolubly mounted in the framework 15. Revolubly mounted upon the shaft 4C9 are a plurality of sleeves 50 depending from which are a plurality of pairs of arms 51 connected by means of cross-bars 52. Between the bars 51 of each pair at their lower ends is revolubly mounted a sheave or pulley 53. Between each pair of arms 51 is fixedlymounted upon the shaft 49 a sheave or pulley 5a, the sheaves 53 and 5% being connected by means of an endless belt 55. One of the sleeves 50 is provided witha segmental gear 56 with which-meshes a segmental gear 57 pivotally mounted upon the frame 15. The segmental gear 57 has fixedly connected to it a lever 58 through the medium of which the gear may be rocked for swinging the arms 51 and the belts. 55 into and out of operative contact with a fresh roll upon the spindle 19 for rotating such roll. The shaft 43 is to be driven at such a rate as to ive the belts 55 a surface speed equal to, that of the web running through the web machine.

The shaft 4-3 is likewise provided with a bevel gear 59 which meshes with a bevel gear 60 mounted upon a short shaft 61 which is connected by means of gears 6263 with a shaft 64. The shaft 64: is provided with sheaves or pulleys 65 fixedly mounted thereon and adapted to drive endless belts 66, the upper ends of which are supported by sheaves or pulleys 67 revolubly carried between arms 68 swingingly mounted in pairs about the shaft 64. The arms 68 of each pair are connected by a cross-bar 69. The arms 68 and the belts 66 are adapted to be swun toward and from a fresh roll upon the spindle 18' by means of a segmental gear 70 operatively connected with said arms, said gear meshing with another segmental gear 71 which is connected by means of a link 72 with the segmental gear 57.

When the fresh roll 17 is inserted in the frame and is prepared as shown in Fig. 2, with the stripper 32 held in its uppermost position by the latch 39, the mechanism is then in readiness for a splicing operation. It will be understood that the gum or other adhesive material will not be-applied to the end of the web of the fresh roll until shortly before the splice is to be made in order to prevent objectionable drying of the gum. When everything is in readiness. the lever 58 is moved to the left in Fig. 1 carrying the belts 55 into contact with the roll 17 serving to give such roll a rotation in counterclockwise direction in Fig. 1 at the same surface speed as, that of the running web. At the desired moment, when the web is substantially exhausted from the roll 16, the latch 39 is thrown out of operative osition through the medium of the cor 42, permitting the stripper 32 to drop into contact with the roll 17. When the end of the web of the roll 17 reaches its uppermost position in the rotation of the roll, a portion of the stripper 32 passes between the end of the web and the body of the roll, serving to tear the pasters 29 and to release the end of the web for unwinding. The end of the web immediately shoots off at a tangent along the stripper 32 into contact with the web 24 between the rollers 2526 which press the two webs together so as to cause them to adhere to each other.

The operation of splicing the end of the web of a fresh roll 73 in position upon the spindle 18 is similar ,to that above described, the end of the web of such fresh roll being directed by the guides 33 into contact with the running web between 'the rollers 2526.

In Figs. 5 and 6 which show a modified form of construction, the parts which correspond in general to the parts already described are indicated by the same reference characters but with the addition of an exponent a. In the construction here shown the spindles 1819 are located farther apart than in the construction heretofore described, permitting the use of asingle driving means located between such spindles for rotatin a fresh roll' upon either of such spindles. his driving means in the construction shown comprises sheaves or pulleys 74 fixedly mounted upon a shaft 7 5 which is adapted to be driven in either direction as desired from the press or other web machine by the use of any suitable driving means, such, for example, as shown in Figs. 9 and 10 wherein 91 indicates a. bevel gear fixed upon one end of the shaft 7 5 and adapted to mesh with either of two bevel gears 92 and 93 loosely mounted upon a vertically-extending shaft 94 driven from any suitable source of ower. A. clutch device 95 of any ordinary construction is slidingly mounted on the shaft 94; between the said bevel gears 92 and 9.3 for connecting either gear as desired with the shaft, such clutch device being shifted by means of an ordinary pivoted hand lever 96. Arms 76 are sw'ingingly mounted about the shaft 7 5 carrying at their outer ends sheaves 0r pulleys 77 which are adapted in cooperation with the sheaves or pulleys 7 4 to support driving belts 78. Any suitable means is to be em loyed for swinging the arms 76 and the elts 78 in either direction about the shaft 7 5- for bringin the belts into operative engagement with a, resh roll upon either spindle as desired. The

, strippers 31 32 are mounted upon shafts 7980, respectively, in lieu of being mounted to swing about the shafts 27*28 as in the construction formerly described. A spring 81 is connected by means of an arm 82 with the stripper 31 for moving the stripper 31 yieldingly upward upon the release of the latch 37*. The shaft 79 is provided with an arm 83 which is connected by means of a link 84 with a lever 85 pivotally mounted upon the framework, the lever 85 being provided at its free end with a roller 86 adapted to engage the periphery of a roll in position upon the spindle 18. The shaft 80 which supports the strippe 32 is likewiseprovided with an arm 87 which is connected by means of a link 88 with a lever 89 pivotally mounted up n the framework and carrying at its free end a roller 90 adapted to engage the periphery of a roll upon the spindle 17 As will be readily understood, the rollers 86 and 90 serve to control the position of the strippers relative to the rolls and relative to the web being drawn from one or the other of said rolls, said rollers serving to limit the movement of the strippers toward the rolls so as to prevent the strippers from having objectionable contact with the rolls.

In Figs. 7 and 8, a modified form of construction is shown quite similar to that shown in Figs. 5 and 6, and like reference characters are used to indicate corresponding parts except for the addition or substitu-tio-n of an exponent b. In this construction a modified form of stripping devices 9192 is shown, adapted to be located within the space between two fresh rolls. In order to meet conditions, the ends of the strippers are curved slightly so as to permit of the strippers being moved out of the way of the web as the size of the roll diminishes.

What I claim as my invention and desire to secure by Letters Patent, is

1. The combination of a framework, means for revolubly supporting two web rolls on said framework on fixed axes thereon, a web guide between said rolls in close proximity to a full roll in either position, means adapted to be moved into and out of contact with either of said rolls at one side thereof for rotating said roll at substantially the same surface speed as that of the web being drawn from the other roll, and means adapted to be moved into operative position relative to a fresh roll to release the end of the web from the roll and direct the web along said guide to the web running from the other roll.

2. A web changing apparatus comprising means for supporting in operative position for alternative use a fresh roll and a roll in use, and a plurality of driving devices movable into engagement with the surface of a fresh roll in either position, respectively, to rotate such fresh roll in the proper direction and at the proper speed to enable it to be spliced to the web in use.

4 nannies 3. The combination of a framework, means for revolubly supporting two web rolls on said framework in close proximity to each other, two endless belts swingingly mounted adjacent to said rolls respectively, means for driving said belts substantially at the same surface speed as that of the Web each of said sheaves, a sheave revolubly mounted upon each pair of arms, endless belts mounted on sand sheaves, and means for swinging said arms in unison for carry-' ing said belts into and out of contact with said roll.

5. The combination of a frame, means for revolubly supporting a web roll on said frame, a shaft journaled on said frame adj acent to said roll, sheaves fixedly mounted on said shaft, a pair of arms swingingly mounted on said shaft on opposite sides of each of said sheaves, a sheave revolubly mounted upon each pair of arms, endless belts mounted on said sheaves, means for rotating said shaft for driving said belts, and means for swinging said arms in unison for carrying said belts into and out of contact with said roll.

6. The combination of a frame, means for revolubly supporting a web roll on said frame, a shaft journaled on said frame adjacent to said roll, sheaves fixedly mounted on said shaft, a pair of arms swingingly mounted on said shaft on opposite sides of each of said sheaves, a sh 'e revolubly mounted upon each pair of arms, endless belts mounted on said sheaves, means connecting said arms rigidly together, and means for swinging said arms for carrying said belts into and out of contact with said roll.

7. The combination of means for revolubly supporting in operative position at the same time a fresh roll and a roll in use, means for driving the fresh roll at a surface speed substantially equal to that of the webin use, a pair of coa'cting rollers adjacent to said rolls, means for stripping the leading end of the web from the fresh roll, and

means for guiding the leading end from a fresh roll in either position as it unwinds into the bite of said rollers.

8. The combination of means for revolubly supporting in operative position at the same time a fresh roll and a roll in use, means for driving the fresh roll at a surface speed substantially equal to that of the web in use, a pair of coacting rollers adjacent to said rolls, means for stripping the leading end of the web from the fresh roll, and a web guide extending from a point between said rollers into close proximity to said rolls for directing the leading end of the Web from a fresh roll in either position as it unwinds into the bite of said rollers.

9. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, means for stripping the end of said web from said roll, a pair of rollers adjacent to said r0ll,.and a web guide extending into the space between said rollers adapted in cooperation with said stripping means to direct the web into the biilze of said rollers as it .unwinds from said r0 l.

10. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing theend portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, a stripper pivotally mounted adjacent to one of said rollers and extending from said roller toward said roll adapted to strip the end of the web from said roll, and guiding means extending into the space between said rollers adapted in cooperation with said stripper to direct the end of the web into the bite of said rollers.

11. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, and a stripper pivotally mounted adjacent to one of said rollers and extending from said roller toward said roll adapted to strip the end of the web from said roll and to direct such web into the bite of said rollers.

12. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, a stripper pivotally' mounted upon the axis of one of said rollers and extending from said roller toward said roll adapted to strip the end of the web from said roll, and guiding means-adapted in codperation with said stripper to direct the end of the web into the bite of said rollers.

13. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, and a stripper pivotally mounted upon the axis of oneof said roll in either position at substantially the same surface speed as that of the web runningfrom the other roll, means for stripping the leading end of the web from the fresh roll, and g iding means adapted to direct the web from either roll into contact with the web from the other roll in the bite of said rollers.

15. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, a stripper pivotally mounted adjacent to one of said rollers and extending from said roller toward said roll in substantially tangential position relative to both adapted to strip the end of the web from said roll, and guiding means for dirooting the end of the web into the bite of said rollers.

16. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, and a stripper pivotally mounted on the axis of one of said rollers and extending from said roller toward said roll in substantially tangential position relative to both adapted to strip the end of the web. from said roll.

' 17. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly ecuring the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, and a stripper pivotally mounted about the axis of one of said rollers and extending from said roller toward said roll in substantially tangential position relative to both adapted to strip the end of the web from said rolland to direct it into the bite of said rollers.

18. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon-said roll, means for rotating said roll, a air of rollers adjacent to said roll, and a strlpper extending transversely of said frame adjacent to oneof said rollers and having arms revolubly mounted on the shaft of said roller, said stripper being adapted to swing about said roller in substantially tangential position relative thereto, to strip the end of the Web from said roll, and to assist in directing such web into the bite of said rollers.

19. The combination of a frame, means for revolubly supporting a web roll on said frame, means lightly securing the end portion of the web in position upon said roll, means for rotating said roll, a pair of rollers adjacent to said roll, a stripper pivotally mounted adjacent to one of said rollers and extending from said roller toward said roll.

in substantially tangentialposition relative to both adapted to strip the end of the web from said roll, and guiding means in substantially tangential position relative to said roll but slightly out of contact therewith adapted in cooperation with said stripper to direct said web into the bite of said rollers.

20. The combination of a framework, means for revolubly supporting two web rolls adjacent to each other on said framework, a pair of co-acting rollers revolubly mounted in close proximity to said rolls adapted to receive between them the web from either roll, means for rotating a fresh roll in either position at substantially the same surface speed as that of the web running from the other roll, means securing the end of the web of the fresh roll lightly in position upon the roll, strippers movably mounted adjacent to said rolls and movable into close proximity to said rolls respectively into substantially tangential position relative thereto, and guiding means in substantially tangential position relative to said rolls but slightly out of contact therewith adapted in cooperation with said strippers to direct said webs into the bite of said rollers.

21. The combination of, a framework,

means for revolubly supporting two web.

rolls adjacent to each other on said framework, a pair of co-acting rollers revolubly mounted in close proximity to said rolls adapted to receive between them the web from either roll, means for rotating a fresh roll in either position at substantially the same surface speed as that of the web running from the other roll, means securin the end of the web of the fresh roll light y infor alternative use a fresh roll and a roll in use, and a plurality of traveling belts movable into engagement With the surface of a fresh roll in either position, respectively, to rotate such fresh roll in the proper direction and at the proper speed to enable it to be spliced to the Web in use.

23. A Web changing apparatus comprising means for supporting in operative posi- 10 tion for alternative use a fresh roll and a roll in use, a plurality of driving devices movable into engagement with the surface of a fresh roll in either position, respectively, to rotate such fresh roll in the proper direction and at the proper speed to enable it to be spliced to the web-in use, and means connecting said driving devices together so that they alternately engage their respective rolls.

SAMUEL G. Goes.

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