US1236669A - Web-winding machine. - Google Patents

Description

R.,BURT.

WEB WINDING MACHINE.

APPLICATION FILED MAR. 9. ISII.

L286 669 Patented Aug. 14,1917.

2 SHEETSSHEET I.

R. BURT.

WEB WINDING MACHINE.

APPLICATION FILED MAR. 9. I911.

1 236,,69, Patented A11". 14, 1917/.

2 SHEETS-SHEET 2.

a ens atria non.

ROBINSON BURT, OF BUFFALO, NEW YORK, ASSIGNOR TO THE F. N. BURT COMPANY. LIMITED, OF NEW YORK, N. Y., A CORPORATION OF CANADA.

WEB-WINDING MACHINE.

Application filed March 9, 1911.

To all whom it may concern:

Be it known that I, ROBINSON BURT, a

citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Web-Winding Machines, of which the following 1s a full, clear, and exact description, such as w ll enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machlnes for taking up or winding continuous strlps of material, especially to machines of this character for operating upon a web of paper, cardboard or similar material.

One object of the invention is to produce a machine for efliciently forming a web nto a compact bundle or roll. Another obJect of the invention is the product1on of a practical mechanism to take up a web without injury thereto, notwithstanding the fact that the rate of delivery of the web thereto may vary. Another object of the nvention is the production of a simple device to guide the web as it is wound so as to produce a roll or bundle in which the edges of the convolutions aline with each other, avoidlng projecting portions. Another ob e ct of the invention is the efficient production of a tightly wound roll. Another object 1s to produce a mechanism of the character described which may be readily manipulated and controlled. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangements of parts whlch will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

Referring now to the accompanyln drawings which form part of this speci catlon, and in which similar reference characters refer to similar parts through the several views,

Figure 1 is a side view showing the machine;

Fig. 2 is a plan view thereof; and

Fig. 3 is a cross section taken on the line H of Fig. 2.

Although the present embodiment of this Specification of Letters Patent.

Patented Aug. 14, 191%.

Serial No. 613,403.

invention is adapted to take up or-wind a Web delivered from any suitable source, it is especially useful in connection with a slow and variable delivery, such as when a Web is delivered from a machine which produces continuous scores therein.

At 1 is indicated diagrammatically a machine for scoring a web. Said machine comprises feed rollers 2, 2, preferably belt driven so as to continuously operate, as ilustrated, between which the web is gripped when fed past rotary scoring rollers 3, 3, these latter producing parallel continuous scores 4, 4 in the web, as indicated by the dotted lines in Fig. 2. It is evident that the Web may be fed to the scoring machine from any suitable source of supply, and in the present embodiment it is preferred to provide a roll of web 5 centrally supported upon a shaft journaled in bearings 6 on a suitable framework 7. As the scoring machine operates, the feed rollers 2 draw the web from the supply roll 5 and the Web is delivered from the scoring machine to the take-up mechanism. The frame 7 may be of any suitable construction, but is preferably composed of metallic bars or tubing arranged as shown and providing elevated supports for the parts of the take-up mechanism, as well as for the roll 5. 8 represents a preferably horizontal table or support having a smooth upper surface. A bracket 9 secured to the frame supports a comparatively large guide roller 10 near one end of the table. The web, after leaving the feed rollers 2, passes around a guide roller 12, thence around the guide roller 10, from which it'passes over the smooth surface of the table to the winding mechanism hereinafter described.

As will hereinafter appear, the take-up mechanism for the web comprises, in its preferred form, a rotary drum or roller 16 upon which the web is continuously wound, and in order that the roll shall be tight and the sides thereof free from projecting portions of the web, a device comprising a plate 15 and web guiding members 15 is provided to guide and tension the web prior to its delivery to the winding roll. As this device to said application for a complete disclosure thereof. It should be noted, however, that the weight of the plate 15 is determined by the tension desired, and that it rests upon the web as the same. passes across the table 8.

After leaving the tension device the web passes to the winding mechanism which, in the present embodiment thereof comprises a horizontal drum or roller' 16 detachably secured between the squared ends of a horizontal spindle 17 and a stub shaft 18, which spindle and shaft are journaled in the frame 7. The drum or roller 16 is adapted normally to be driven in such a manner as to take up the web as it is delivered from the machine which has previously operated thereon.' It should be noted, however, that if, for any reason, the web should offer excessive or abnormal resistance to the rotation of the drum, the driving mechanism hereinafter described will temporarily become inefi'ective to drive said drum until normal conditions are again established.

For the sake of convenience in assembling, and in case repairs become necessary, the spindle 17 is operatively secured to a shaft 19, as by means of the coupling 20, the latter shaft being also suitablyj'ournaled upon the frame 7. Keyed or otherwise rigidly fastened upon shaft 19 is a friction disk 21 provided with a facing 22 of leather or other suitable friction material, and spaced a-suitable distance therefrom, a second disk 23 of similar construction is carried by the shaft 19, but is disposed thereon in opposed relation to said first disk, this second disk being also faced with leather, as at 24. In the preferred construction the disk 23 is loosely mounted upon the shaft 19 in order that it ma be shifted longitudinally thereof and is enabled to rotate said shaft by means of a spline or feather 25. A belt pulley 26 rotatably mounted on the shaft 19 is disposed between the opposed friction faces of the disks 21 and 23 and is provided' upon either side with flanges 27 and 28 adapted, respectively, to coact with said disks to thereby provide a friction clutch adapted to drive the drum 16, or, under certain predetermined conditions, to permit of the latter remaining idle. The speed of the pulley is preferably such that it tends to cause the drum to takeup the web at a faster rate than the same is delivered. A spring 29 disposed about the shaft 19 and bearing at one end against the hub 30 of the disk 23 and at the other end against an adjustable collar or abutment 31, normally tends to force the said disk into contact with the adjacent pulley face and then to move the latter into contact with the friction disk 21,- in which position the frictional contact of the parts may prevent relative rotation thereof. The collar 31, which is threaded upon the shaft 19, may be turned in either direction to adis provided with a groove 32 in which is loosely seated the forked end of a lever 33 pivoted to the frame, as at 34:, and provided at its opposite endwith a socket 35. An ad- ]ustingscrew 36 of small pitch is threaded into the frame 7 substantially perpendicular to the lever 33, and is formed at its outer end to enter the socket 35 and is adapted to be rotated by means of a crank'37. It will be seen that by imparting a slight movement to the crank in the proper direction the screw will transmit a slight movement to the lever, whereupon the disk 23 will recede a pro ortionate distance from the position to w ich it would be normally moved by the spring. This fine adjustment, by diminishing the effect of the spring, provides means for regulating the pressure between the friction members to the proper degree for enabling the winding drum 16 to take up the web at the same rate at which it is delivered thereto and with just the right amount of tension upon the web. As there is a tendency on the part of the winding drum to take up the web faster than the same is being delivered from the scoring machine, the resistance of the web against rotation of the drum is at times, s'ufiicient to cause the friction disks to slip upon the belt pulley, and thus prevent straining or tearing of the web. In operation, the supply roller 5 is loosely 1ournaled on its support 6 and the end of the web threaded, in this instance, through the scoring machine between the feed rollers 2, thence around the guide rollers 12 and 10 and between the plate 15 and the table 8, from which it passes to the drum 16 where on it is to be wound and to which the end of the web is suitably secured. The belt pulley now being put in motion and'the scoring machine started, the web will be delivered from the scoring machine and the rate of delivery may be varied more or les and may be slower than the-rate at which the web is being taken up by the roller 16. When such is the case, the tension of the web will cause the release of the friction mechanlsm, as explained above, thus temporarily putting the take-up deviceout of action. The action will, however, be again resumed when the tension on the web is sufficiently diminished. Thus the rotation of the drum 16 and the wrapping or winding of the\web thereon is governed by the rate of delivery of the web and the web is taken up as it is delivered, the take-up varying with the delivery and operating synchronously therewith.

It will therefore be seen that by means'of the above-described apparatus the several .130

objects of the inventionmay be accomplished in a thoroughly practical and efficient manner.

As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described. and all statements of the scope of the invention, which, as a matter of language, might be said-to fall therebetween.

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

1. In apparatus of the class described, web take-up means, comprising a drum, a drum shaft, a driving pulley loosely mounted on said shaft, a friction disk rigidly secured to said shaft and disposed upon one side of said pulley, a second friction disk slidably and non-rotatably secured to said shaft and disposed upon the other side of 7 said pulley, a spring tending to move said second frlction disk to cause frictional contact between said pulley and said disks and= drive said shaft, an adjustable abutment for said spring, a lever engaging said disk and adapted to diminish the efiect of said spring, and means for adjusting the position of said lever to determine the degree of diminution.

2. In an apparatus of the character described, in combination, means adapted to continuously deliver a web, a rotatable drum on which said Web is adapted to be wound, a shaft supporting said drum, a friction clutch disk fast on said shaft, a second friction clutch disk longitudinally movable on said 4 shaft, a driving pulley rotatably mounted on said shaft between said disks, said pulley having flanges adapted to cooperate with said dlsks, respectively, a spring adapted to press said disks and flanges together, means adapted to vary the tension of said spring, and means adapted to drive said pulley at a rate greater than the greatest rate of delivery of said Web.

In testimony whereof I aflix my signa-

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