USRE17843E

USRE17843E - Edward e

Info

Publication number: USRE17843E
Authority: US
Publication date: 1930-10-21

Description

Oct. 21, 1930. I MASTQN Re. 17,843

IYICEFOR HOLDING ROLLS ,OF' PAPER Original Filed July 1.924 2 Sheets-Sheet 1 ZdmrdZ/Vm/z Oct. 21, 1930. I 1 E. E. MASTON Re. 17,843

DEVICE FOR HOLDING ROLLS OF PAPER 7 o i i l Filed July 5, 1924 2 Sheets-Sheet 2 [7 27 V I t v m l :1 ll I, I" II I I II II I ll thepresent Invention 1s tO'PI'OVldB a device Reissued Oct. 21, 1930 v UNITED STATE PATENT OFFICE RDwARD E. MASTON, OF WILMETTE, ILLINOIs ssIGNOR romIDswRsr BOX comm,

- or cIIIcAco, ILLINOIS, CORPORATION OF INDIANA.

DEVICE FOR HOLDING ROLLS or Firm 0rigina1 No. 1,659,276, dated February 14, 1928, Serial 110.7%,205, filed July 5, 1924. Application for reissue filed February 14, 1930. Serial No. 428,525.

The invention relates to devices for holding rolls. of paper and the like In the operation of machines to which a strip of paper is fed from a large supply roll, such as a machine for making faced corrugated board, a desideratum has been to avoid the stoppageof themachine or lack of supply incident to the removal of the empty spools and placement of full rolls in feeding position. The primary object of by which a full rollmay be placed in its owrative position, before. the roll. from which the machine is being supplied has been run off, and in readiness to be threaded into the machine without interrupting the supply. 11

general, this device embodies means for temporarily supporting a full roll in one position in readiness .to be fed to the machine without interruption of the supply, and

means for transferring the full roll to the normal position of the supply roll while it is being run off and after the empty spool has been removed. Another object of the invention is to provide a device of this character by which the paper will be constantly kept under the desired tension .to prevent overrunning.

The invention consists in the several novel features hereinafter set forth and more particularlydefined by theclaims atthe conclu'sion hereof. I A

In the drawings: Fig. 1 is a side elevation of a structure embodying the invention,

showing a full roll in its temporary position in readiness to be supplied to the'machine while the roll from which the paper is being run, is nearly empty. Fig. 2 -is a similar view showing the transfer mechanism in position to transfer the full roll to the normal operative positionof the supply roll. Fig.

' 2 is a detail of the pocket-bearings 'inthe supporting frame. Fig. 3 is a front elevation. Fig. 1 is ase ction taken on line 4 -4 of Fig. 2. Fig. 5 is a detail of thebraking or retarding device.

. The invention isexemplifiedin a structure comprisin a supporting frame composed of similar si es 7 which are rigidly cross-connected by a was, and are adapted to rest upon the floor.

Adjacent their rear ends the frame sides 7 are provided with aligned recesses which form open or pocket-bearings 9 "for a shaft 10, which is usually provided with cones 11 I to form a spool pr reel on which the paper 12 is wound, is adapted to rest and run in, and to be lowered into and be raised out of said bearings. The shaft 10 of each roll of paper is supported, and held in bearings 0 9 while the roll is. being unwound'by the feed-rolls of the machine to be supplied with paper. Each shaft 10 is provided adjacent one end, with a grooved pulley 13 for a friction or braking device which sufliciently retards the rotation of the shaftto prevent the roll from overrunning or to applythe desired resistance to the paper according to the requirements of the machine supplied.

Each braking device consists of a ring fitting l inner periphery of the ring-sections. "By adjusting the screw 17- the'friction of the ring on the pulley may be regulated to put the desired tension On'the paper. A pair of I

arms

22 and 23 project from ring-section 15 of the'brake-ring and are adapted to engage co-acting stop-pinsas hereinafter set forth.

The supporting frame is also provided adj acent its front end with aligned recesses 24: which form open or'pocket-bearings for the shaft 10 of a second paper roll. These frontbearings are positioned to hold a full roll before the supply roll held in bearings 9 has been run off. The stop-arm 23On the braking device of a shaft held in bearings 24 will engage a stop-pin 25 projecting from one of the frame-sides 7 so that while the roll is being thus supported the desired friction will be applied to the paper-to "prevent it from overrunning or to put the desired tension thereon according to the requirements of the machine to which the paper is supplied. The

' tohave a full roll in readiness to be threaded rigidl into the machine as soon as the roll carried in bearings 9 isempty and consequently there will be available an uninterrupted supply ofpaper. Each shaft 10 is provided with a series of annular grooves 27 which when the shaft is placed in bearings 24, receive the teeth of a pinion 28 which is mounted on a shaft 29 carried in a bearing 30 on one of the frame-sides. This shaft 28 has a polygonal end 30 so that it may be turned by an ordinary wrench to transversely adjust the shaft 10 to bring the roll into correct transverse alignment with the machine. A similar device is provided to adjust the shaft 10 of a roll of paper supported in the bearings 9.

Mechanism is provided totransfer a roll from bearings 24 to bearings 9,, after the roll carried by the latter is empty and its shaft 10 has been removed. This mechanism comprises a transverse rockable shaft 32 which passes through bearings 7 in the frame-sides and a pair of lifting arms 33 which are attached to said shaft. A tiltable trans er-device which is adapted to transfer ashaft 10 with a roll thereon from bearings 24 to bearings 9 while. the roll is being run off into the machine, comprises a shaft 34 which is pivotaily mounted in the distal ends of lifting arms 33 and a pair of transfer arms 35 fixed to shaft 34. The upper end of eachv arm 35 is forked as at 35 to straddle and hold a shaft 10 during a transferring operation. An operating arm 36 fixed to shaft 34 is adapted to slip into and be shifted by a long piece of pipe serving. as a lever. Anoperating arm 37 is rigidly fixed to shaft 32 and is also adapted to pass into and be' shifted by a long piece of pipe or lever. The framesides 7 are provided with aligned open bearings or recesses 38 and 39 which are adapted to support the shaft 34 in two alternative positions. The forward swing of the arms 35 is limited by a stop-pin? so that in transferring a roll to bearing 9 the transfer arms if will be arrested in correct position to deposit the roll-shaft 10 in bearings 9.

A stop pin 40 is provided on one of the arms 35, which when the arm is lifted to 7 transfer a roll-shaft 10 in bearings 24, will pass into position to engage. arm 22 of the raking device toprevent the roll from unwinding while its shaft is being sustained and transferred by the transfer arms 35 to bearin 's 9.

'. .The' operation will be as follows: I a Ashaft 10 with a full roll of paper thereon will be placed into pockets 24. The brakearm 23 on the brake-ring carried b said shaft will engage the stop-pin 25 on t e one of the frame-sides 7, while the shaft remains in (pocket 24, so that the paper will be kept un er proper or necessary tension to supply the machine; The paper 'may be connected to supply the machine as soon as this roll is held in pockets 24. While the paper from this roll is being drawn into the machine, its shaft 10 will be transferred to pockets 9 with out interruption in the paper supply. This transfer is effected by first rocking shaft 34 into the position shown by full lines in Fig. 2, by meansof a lever applied to arm'36. Then arm 37 of the lifting device will be 0perated to position shown by dotted lines from the position shown by full lines. This will lift shaft 10 sufiiciently to clear pockets 24 and bring stop-pin 40 into active relation With brake-arm 22 to keep the paper under tension during its transfer. A lever will then be applied to arm '36 to swing the transfer arms 35 together with shaft 10 and its roll into position shown in full lines of Fig. 1

and so that the shaft will rest and be rotatable in pockets 9. The front ends of said pockets are inclined to permit the shaft 10 to be swung into said pockets by .tlI'lllS 35. One side 35 of each ft :1: 35 is cut away to per.-

mit the fork to pass under a shaft 10 in pockets 24, the other side being adapted to oe arrested by the shaft. This-transfer is accom pli-shed without interrupting the paper supply. The transferred roll will be completely,

runoff while its shaft remains in pockets 9 and arms 35 remain connected thereto. Be-

be placed in pockets 24 inreadiness to be connected to the machine the instant or be fore' the supply from the roll in" pockets. 9 becomes exhausted. Next the empty shaft 10 will be removed from pockets 9 and the roll will be transferred from pockets 24 as before described.

i The irivention exemplifies a mechanism for handling rolls of paper'whereby a'full roll may be successively placed in readiness to supply a machine'and then transferred into position to be run off and in which provi sion is made for braking the rolls at all times and during the transfer thereof. 0

arms pivoted to swing between the bearings and having means at their upper ends to support a shaft, and means for operating the arms to lift a shaft out of one of the. bearings so that the arms may be swung to transfer theshaft to the other bearing.

2. In mechanism for handling rollsof pa- '95 fore this roll is exhausted, a full roll will The invention 1s not to be understood as reper and the like, the c ombination of a supporting Structure provided with open bearings for simultaneously supporting two shafts .one in front'of theother, a pair of transfer .port a shaft, means for shiftingthe arms to lift a shaft out of one of the bearings, and

" and having means at their upper ends to supmeans for swinging said arms'to transferthe lifted shaft to the other bearing.

3. In mechanism for handling rolls of paper and the like, the combination of a sup-,

porting structure provided with open bearings for simultaneously supporting two shafts one in front of the other, a pair of transfer arms pivoted-to swing between the bearings .port a shaft, means for shifting the transfer arms to lift a shaftout of one of the bearings comprising a rock shaft and a pair of arms, and means for swinging thev transfer arms to transfer the lifted shaftto theotherbearing.

4:. In mechanism for handling rolls of pa- ;per and the like,' the combination of a supporting structure provided with open bearings for simultaneously supporting two shafts one in front of the other, a rock shaft, a pair of transfer arms connected at their lower ends to the rock shaft and provided at their upper 'ends with means to support a shaft, means for shifting the rock shaft and transfer arms to lift a shaft out of one of the bearings, and means for swinging the transfer arms to transfer the lifted shaft to the other bearing.

- 5. In mechanism for'handling rolls of paper and the like, the combination of a sup porting structure providedwith fixed open bearings for simultaneously supporting two shafts; ransversely grooved, one infront of the other, a pinion mounted on the structure and adapted to engage the grooved portion of one of the shafts, said pinion being operable to shift said one shaft axially relatively to the other,and means for transferring one of the shafts from one bearing to the other.

6. In mechanism for handling rolls of paper and the like, the combination of a supporting structure'provided with bearings for simultaneously supporting two shafts, one in front of the other, a brake pulley mounted respectively on each of said shafts to rotate therewith,a braking device for each of said brake pulleys and adapted to cooperate therewith to retard rotation of its shaftfsaid braking device being constructed independently of the supporting structure, means for effecting'the transfer of a shaft from one of the bearings to' the other, and means cooperating with said braking device during the transfearing operationfor preventing rotation of said braking device with said brake pulley 7 whereby a substantially constant retarding effect will be maintained upon the shaft being transferred.

I In mechanism for'handling rolls of pa- I per and the like, the combination of'a supporting structure provided with bearings and means cooperating with said braking device duringthe transferring operation for preventin rotation of said braking device withsaidilorake pulley.

8. In mechanism for handling rolls. of paper and the like, the combination of a support- I ing structure provided with spaced bearings adapted to successively support a shaft, a brake pulley .I hounted to rotate with said shaft, a braking device forsaid brake pulley adapted to cooperate therewith-to retard rotation of the shaft, said braking device comprising an adjustable, unitary brake band constructed so as tobe separable from the supporting structure, means for effecting the transfer of the shaft from one of the bearings to the other, and means cooperating with said brake band during the transferring operation for preventing rotation thereof with said brake pulley whereby a substantially constant tension is maintained on said brake pulley to retard the rotation of said shaft.

9. In mechanism for handling rolls of paper and the like, the combination of a supporting structure provided with spaced bearings adapted to successively support a shaft in each of-two positions, a brake pulley mounted to rotate withsaid shaft, a braking device for said brake pulley adapted to cooperate therewith to retardirotation of the shaft, said braking device comprising a unitary brake band constructed so as to be separable from the supporting structure, mechanism including a pair of levers for effecting the transfer of the shaft from one of the bearingsto the other, and means cooperating with said brake hand during the transferring operation for preventing rotation thereof with said brake pulley whereby tension is at all times maintained on said brake pulley to retard the rotation of said shaft. 9

10. In mechanism for handling rolls of paper and the like, the combination "of a supporting structure provided-with means for simultaneously supporting two rolls in position to supply a machine, a device for successively transferring the rolls from one Position to the other, and means for braking the rolls while they are being transferred, said means comprising a brake pulley for each of said rolls and mounted to rotate therewith, a braking device independent of and separable f m" anism associated with said transfer device,

said supporting structure and said brake pulley for maintaining said braking device 1n operative braking condition duringthe transferring operation.

Signed at Chicago, Illinois, this 11th day of February, 1930.

EDWARD E. MASTON.

CERTIFICATE or CORRECTION.

Reissue Patent Na. 17,843. Granted October 21, 1930, w

EDWARD E. MnsToN;

It is hereby certified that the above numbered to "Mid-West BnxCompany, of Chicago, Illinois, whereas said patent should have been issued to Mid-West Box Company, of V Chicago, Illinois, a corporation of Delaware, said corporation Being assignee by mesne assignments of the entire interest in saidinvention, as shown by the records of assignments in this office; be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 9mm of DecernberyA. o. 1930.

patent was erroneously issued a corporation of Indiana",

M. J. Moore,

(Seal) Acting Commissioner of 7 Patents.

and that the said Letters Patent should anism associated with said transfer device,