US3371880A

US3371880A - Paper roll holder

Info

Publication number: US3371880A
Application number: US519726A
Authority: US
Inventors: William J Clisham
Original assignee: William J. Clisham
Current assignee: WILLIAM J CLISHAM
Priority date: 1966-01-10
Filing date: 1966-01-10
Publication date: 1968-03-05
Anticipated expiration: 1985-03-05

Description

March 5, 1968 w. J. cLlsHAM 3,371,880

PAPER ROLL HOLDER Filed Jan. 1o, 1966 Sw-w1 w,

United States Patent zdce 3,371,880 Patented Mar. 5, 1968 3,371,880 PAPER ROLL HOLDER William J. Clisham, 18 Boyd St., Bangor, Maine 04401 Filed Jan. 10, 1966, Ser. No. 519,726 Claims. (Cl. 242-555) ABSTRACT 0F THE DISCLOSURE This invention relates to a paper roll holder that permits each of a plurality of paper rolls mounted on a common shaft to pay off paper at a rotation rate that is independent of the rotation rate of the other rolls. Means are provided to position each roll axially along the shaft and independently retard the rotation of each roll.

My invention relates to a holder for rolls of paper and in particular to a holder to operate in conjunction with paper cutters, rewinding machines, embossing machines and the like. In paper working machinery it is desirable to perform operations on sheets of paper coming from more than one roll of paper at the same time. It is not possible, however, to mount paper rolls of different diameters and different widths or axial lengths on a common shaft because the largest diameter roll does not have to rotate as fast as the smallest diameter roll to deliver strip paper at the same linear velocity. The result of a plurality of different diameter rolls on a common shaft would be that the paper would be delivered at different linear velocities or some of the paper would bind and tear. In a paper cutter, for example, if several strips of paper are being cut into small sheets, the strips must move at the same linear velocity or the sheets will not be of uniform size.

It is an object of my invention to provide an improved Y paper roll holder which permits rolls of paper of different diameters to be mounted in side by side relationship on a common shaft.

It is another object of my invention to provide an improved paper roll holder which allows rolls of paper of different diameters and widths or axial lengths mounted in side by side relationship to rotate at different angular velocities.

It is a further object of my invention to provide a multiple roll paper holder in which each yroll is independently adjustable in position along a shaft without the use of intermediate supports or standards.

It is yet another object of my invention to provide a multiple roll paper holder having a common shaft on which each roll is independently retarded without the use of intermediate supports or standards.

My invention accomplishes these objects by construct*` ing a stationary shaft with a plurality of sleeves rotatably mounted on the stationary shaft. The rolls of paper are then mounted on the sleeves. Means are provided to adjust the position of each roll along the shaft so that the paper will line up with a following machine, such as a paper cutter. Each roll is also independently retarded with a friction wheel mounted on each of the sleeves.

The teachings of the invention produce a paper roll holder in which each roll of a plurality of rolls is free to rotate at an angular velocity which is independent of the angular velocity of the other rolls.

The prior art uses a paper roll holder comprising two stands or standards supporting a simple shaft which holds one roll of paper and turns with the paper roll. It is not practical to mount a plurality of these paper roll holders side by side to get the desired multiple source of supply of sheet paper strips because the room taken between the paper rolls by the standards and allowances for different roll widths would be excessive.

For example, if three paper roll holders of the prior art were placed side by side, four standards or supports would be the minimum required. Two would be end Standards each holding one end of the shaft; two would be intermediate standards each holding one end of two shafts. Because the width or axial length of the paper rolls varies, the intermediate standards would limit the mounting of rolls of paper which are wider than the spacing between the adjacent standards.

My invention obviates the necessity of intermediate standards by requiring only two end standards.

For a better understanding of the invention reference may be had to the accompanying drawings in which:

FIGURE l is a perspective view showing an application of my invention;

FIGURE 2 is a partial longitudinal section through the embodiment of the invention shown in FlG. l; and

FIGURE 3 is a detail of the construction of the end retarding wheels.

Referring to FIGS. 1 and 2, where like numerals refer to like parts, there is illustrated an embodimentof my invention applied to three rolls of paper 10, 12 and 14 of different diameters and different axial lengths, Each of the rolls is. mounted on one of three

sleeves

18, 20 and 22 which are carried on a shaft 16. The shaft 16 is supported by supports or

standards

36 and 38. The paper rolls are secured to the sleeves by removable collars such as the

collars

24 and 26, securing roll 10 to sleeve 18.

Removable rings 31 may be attached to the

end sleeves

18 and 22 to provide thrust bearing surfaces for lateral adjustment of the position of the paper rolls by any suitable means such as the lateral adjustment boxes 68 used with paper roll holders of the prior art. Lateral adjustment of the sleeves along the shaft is necessary to line up the paper sheets with following machinery, such as a paper cutter.

Friction wheels such as wheel 28 may be mounted on the

sleeves

18, 20 and 22 to retard the angular velocity of the paper rolls and prevent overrunning of the strip paper as the rolls are rotated by the paper being pulled off the rolls by a machine (not shown) such as a paper cutter.

The middle sleeve 20 can be adjusted along' the shaft 16 by means of a removable combination retarding and position adjustment clamp or carrier 5ft. The clamp 54 is secured to the shaft 16 by pin 80 or by any suitable means such as allen screws or keyways. A threaded member 56 is provided in the clamp 54 to engage a brake band carrier 78 to move the wheel 60` and thus the sleeve 20 along the shaft 16 and to hold the sleeve in the desired position along the shaft 16 while the sleeve rotates. The end of the threaded member 56 is engaged with a carrier for thrust and friction means such as the externally contracting brake bands 58 mounted about the friction wheel 60. The friction wheel 60 is provided with a groove dened by two flanges which function in a manner similar to thrust rings 31 to move the sleeve 20 along the shaft 16. The brake bands 58 may be tightened by means of screw 62 on the friction wheel 60 to provide the desired retardation to the paper roll 12.

The other end of the threaded member 56 is engaged with clamp or carrier 54 and is provided with a handle 59 and lock nuts 61.

It will be understood that to move the sleeve 20 along the shaft 16 ythe threaded member 56 is turned forcing the brake bands 58 sidewise against one of the anges or friction wheel 60. It is immaterial if the brake bands 58 are tight or loose during the positioning operation 3 as long as the brake remains in the groove of friction wheel 69.

The clamp S4 can be moved along the shaft 16 to accommodate paper rolls of different axial lengths. This feature of my invention is an improvement over the fixed standards of the prior art.

Although I have shown only one intermediate sleeve 20 it will be apparent that more sleeves can be mounted on shaft 16 by the use of more than one clamping device 54.

It will be noted that

paper strips

30 and 32 are being drawn off the bottom of the rolls and 12 while the paper strip 34 is being taken off the top of roll 14. This makes rolls 10 and 12 rotate in the direction indicated by arrows 37 and 41 and roll 14 rotate in the direction indicated by the arrow 4t). independent rotation of the paper rolls is desirable because paper has sides of slightly different quality. One side is the felt or watermark side; the other side is the wire side. The paper sides are so named because the paper during manufacture contacts felt on one side and wires on the other.

If for any reason one roll of paper is wound felt side out and the adjacent roll is wound wire side out it will be apparent that they can be made to unwind and deliver strip paper with the desired side facing upward if the paper rolls can be made to rotate in opposite directions. This is one of the results my invention accomplishes.

For example, if paper rolls 10 and 12 are wound wire side out and paper roll 14 is wound felt side out and if the rolls are placed on the shaft 16 so that the roll 14 will rotate clockwise by pulling the paper in the direction shown (as one looks endwise at the rolls from the standard 36) and rolls 1t) and 12 rotate counterclockwise, the

paper strips

36, 32 and 34 will all face felt side up as they move to the next operation.

It is also possible to play off paper from one roll with one paper side up and from one or more rolls with the other paper side up at the same time to meet specific mill orders.

It should be noted that the paper roll rotation can be determined by how one places it on the shaft. A change in roll mounting end for end will give a 360 change in the direction of the rotation. An end for end change in roll mounting also results in a change in paper payoff from the top to the bottom of the roll and vice versa.

It will be obvious that the independent rotation of each roll of paper, permitted by my invention, will allow roll 12 to turn faster than roll 10 and roll 10 to turn faster than roll 14 for a constant linear speed delivery of paper strips to the following machinery (not shown) which is drawing off the paper strips. The smaller a roll the faster it must rotate to keep its linear paper delivery equal to that of a larger roll.

The shaft 16 is held stationary by arms or outriggers 64 which engage facets 42 on shaft 16. The arms 64 may be hinged to assist the operation of changing rolls. The end brake or friction wheel, as wheel 28, are provided with externally contracting brake bands which are supported and prevented from turning by arms 66, The end brakes may be adjusted to provide the desired retardation to the end rolls 10 and 14 by tightening brake band adjustment screws 29.

In FIG. 2 it will be observed that the shaft 16 may be provided with a rounded or sharpened ends 45 to facilitate insertion of the shaft 16 in the sleeves 18, 2t) and 22. The sleeves are rotatably mounted on the shaft by means of bearings such as the bearing 50 and 52 of sleeve 18. The bearings are fastened to the sleeves by and suitable means.

The paper rolls are mounted on the sleeves in such a manner that the rolls will be carried by the sleeves and will rotate with the sleeves. One way this result may be obtained is through the use of removable collars such as the

collars

24 and 26 applied to paper roll 10. The

collars

24 and 26 may be provided with lugs 46 and 48 respectively, which engage the paper roll and prevent relative movement between the roll 1i) and the sleeve 18.

The

collars

24 and 26 and rings 31 may be removably mounted on the sleeves so that the paper rolls may be placed on the sleeves by sliding and sleeves into the paper rolls. After the sleeves are inserted in the paper rolls the removable elements such as

collars

24 and 26 and rings 31 may be positioned and held in place by any suitable means such as allen screws.

It should be noted that my invention may be easily adapted to hold one roll of long axial length by using but one sleeve almost as long as shaft 16.

Referring to FIG. 3 it may be seen that the sleeve 18 is allowed to move through the friction Wheel'28 by means of the slot or keyway 72 in the sleeve 18 and the key 70 in the horizontally xed rotatable friction wheel 28. The same arrangement is used to allow movement of sleeve 22 along the shaft 16. As previously mentioned, the end friction wheels are provided with externally contracting brake bands which are held in place by rigid arms 66 as best seen in FIG. l. Any intermediate friction wheels, such as wheel 6i), do not require a slot arrangement because the wheel 60 is carried on the sleeve 20 and is attached to it by any suitable means such as welding.

My invention has the additional feature of allowing a plurality of rolls to be mounted on the shaft 16,4 each in the manner of roll 12, if the slot arrangement is not desired.

It can be seen from FIGS. 1, 2 and 3 that I have provided an improved holder for paper rolls that will permit more than one roll of paper to be mounted on a single shaft even though the rolls are of different diameters and different axial lengths.

My invention also eliminates the need for intermediate supports between the end standards.

It will, therefore, be apparent that there has been disclosed a multiple roll paper holder which is more versatile than the single roll paper holders of the prior art.

Since numerous changes may be made in the above described apparatus and different embodiments of the invention may be made without departing from the spirit and scope thereof, it is intended that all matter contained in the foregoing description as shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. In a roll holder for paper working machinery ernploying a shaft and means for supporting the shaft, the improvement comprising:

a plurality of sleeves rotatably mounted on the shaft;

means to retard the rotation of the sleeves;

means to position the sleeves along the shaft;

at least one of the sleeves carrying a friction wheel;

means to prevent shaft rotation;

means to position at least one of the sleeves axially along the shaft, said means mounted on the shaft; means to retard the rotation of at least one sleeve,

said means mounted on the shaft;

at least one of the sleeves retarded and positioned by means which can selectively apply friction to the friction wheel and move the friction wheel axially along the shaft.

2. A combination retarding and positioning means for a rotatable sleeve mounted on a stationary shaft comprising:

a wheel attached to said rotatable sleeve;

thrust means to move the wheel axially along the shaft;

friction means cooperating with said wheel to apply friction to said wheel;

a carrier for said friction and thrust means; and

means to removably fasten said carrier to the stationary shaft.

3. The combination retarding and positioning means of claim 2 in which the friction means includes at least 5 one externally contracting brake band disposed about the Wheel.

4. The combination retarding and positioning means of claim 3 in which the Wheel is provided with a groove in which a brake band is disposed.

5. The combination retarding and positioning means of claim 4 wherein means are provided to vary the position of the carrier for the friction and thrust means relative to the position of the means to removably fasten the carrier to the shaft.

References Cited UNITED STATES PATENTS 2,531,913 11/1950 Kaim 242--75.4 3,194,713 7/1965 Comet 242-684 X LEONARD D. CHRISTIAN, Primary Examiner.