US56682A - Improvement in machines forpolishing enameled paper - Google Patents

Description

UNITED STATES PATENT OFFICE.

WILBUR F. WRIGHT, OF NASHUA, NEW HAMPSHIRE, ASSIGNOR TO HIM- SELF AND EDWIN BLOOD, OF NEWBURYPORF MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR POLISHING ENAMELED PAPER.

Specification forming part of Letters Patent No. 56,682, dated July 24, 1866.

To all whom it may concern:

Be it known that I, WILBUR F. WRIGHT, of Nashua, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Machines for Polishing Enameled Paper 5 and l do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, makinga part of this specification, in which- Figure l is a side elevation. Fig. 2 is a central vertical section. Fig. 3 is a plan or top view.

Similar letters of reference indicate corresponding parts in all the iigures.

This invention consists in the employment of two sets of rollers, the burnishing-roller in cach set revolving at a higher velocity than its supporting-roller, and with the burnishingroller of one set revolving at a greater speed than that of the other set, whereby the polishing operation is more effectually performed than if only a single set were used.

The invention further consists in the arrangement with regard to two such rollers, one of which is a burnishing-roller and rotates at a higher velocity than the other, of two pressure-rollers, whereby the paper is prevented from becoming wrinkled as it passes into the machine, and is at the same time partially smoothed by pressure preparatory to bein g polished or burnished.

To enable others to understand the construction and operation of my invention, I will proceed to describe it with reference to the drawings.

A is a suitable supporting-frame of iron or other suitable material, and which sustains the working parts of the machine. Projecting l, downward from each side of the central part of this frame A is a hanger, a, and with its shaft working in suitable bearings formed in the lower end of these hangers is a transverse roller, B, on which the enameled paper is wound previous to being fed into the machine.

Situated transversely at the front or forward end of the frame A, and one above the other, are two feed and pressure rollers, C and D, which may be of iron. The shaft of the upper roller, D, works at each end in vertically-adinstable bearings c, as shown more clearly in Fig. l, in order that it may be adjusted to press with any desired degree of pressure upon the paper as it passes between the said rollers. Upon one end of the said shaft of the rollerD is fixed a large spur-wheel, d, while upon the opposite end of the shaft of the lower, roller, C, is fixed a small gear-wheel, e.

E is a revolving cylindrical brush, which is placed in front of the roller C and parallel therewith, and has upon one end of its shaft a pulley, f, by means of which it is revolved by a suitable belt acting upon the said pulley. This brush E is so placed as to brush the outer surface of the paper as it passes to the rollers C D and remove any particles of dirt or dust that may have adhered thereto.

Situated transversely in the upper and central part of the frame A is the paper roller F and the steelburnishing-roller G. The roller F is made of compressed paper, whereby its surface is enabled to exert a greater frictional or adhesive action upon the under surface of the sheet of paper to carry it under the burnishing-roller than it would if made of wood or metal, and has its shaft supported by and working in fixed bearings in the sides of the frame A, one end of the said shaft of the roller F being furnished with a small gear-wheel, g, which is connected by means of an intermediate gear-wheel, h, with the gear-wheel c ofthe pressure-roller C. The burnishing-roller G is made of steel, very smooth and polished, and placed over the paper roller F and parallel therewith, and has the ends of its shaft working in adjustable bearings similar to the bearings c of the roller D. Upon one end of the shaft of this burnishing-roller Gris a bandwheel, j, and upon the opposite end of the said shaft is a spur-wheel, k, which meshes into the spur-wheel d, attached to the shaft of the roller D, as hereinbefore set forth, the spurwheel 7c being considerably less in diameter than the spur-wheel d, in order to give an increased velocity to the wheel k, and consequently to the biunishing-roller G, as will be presently further explained.

Situated near the rear end of the frame A, behind the rollers F G and parallel with the saine, is another set or pair of rollers, consisting of a lower roller, H, and an upper burvrushing-roller, I, of steel. The lower-roller,

H, is made of compressed paper, in the same manner and for the same purpose as the roller F, and has the ends of its shaft working in fixed bearings in the sides of the frame A. Secured upon one end of the shaft of this paper roller H is a small gear-wheel, m, which is connected by an intermediate gear-wheel, n, with the gear-wheel g on the shaft of the roller F. The gear-wheels 6 g 7L m n are all oi' the same dian'leter, so that the rotation of the lower iron roller, C, communicates an equal and uniform motion 'to the paper rollers F and H.

rlhe burnishing-roller I is made of polished steel, in the same manner as the bnrnishingroller G, and is placed over and parallel with the roller H, in the saine way that the roller G is placed over the paper roller F, and has the ends of its shaft working in adjustable bearings r, similar to the bearings c and i of the rollers D and G.

s is a gear-wheel fixed upon one end of the shaft of the burnishing-roller I, and meshing into another gear-wheel, u, which turns on a pin or pivot projecting out from one side of the frame A, and meshes into the gear-wheel 7c on the shaft of the burnishing-roller G. The gear-wheels s and u are smaller than the gearwheel 7c, in order that the burnishing-roller I may have a higher velocity than the other burnishing-roller, G.

J isa transverse roller situated in the rearmost end of the frame A, and upon which the paper is rolled as it passes from the machine. Upon one end ofthe shaft of this roller J is a band-wheel, o, which is connected with a pulley, w, on the shaft of the burnishing-roller I by means ot a belt, a', so that the rotations of the said burnishing-roller revolve the roller J.

rIhe surface of the paper having been previously covered or coated with the enameling substance or material, and being in a dry condition and in the form of long sheets or pieces, is wound upon the roller B. The outer end of the paper is then passed around the lower iron roller, C, between the said roller C and the other iron roller, D, then back between the rollers F G, and then between the rollers H I, after which it is attached to the roller J the enameled surface of the paper being uppermost as it passes between the said rollers. Motion is then communicated to the several rollers in the directions shown by the arrows in Fig. 2 by means of a suitable belt acting` upon the band wheel or pulley j of the polishingroller G, while another belt, acting upon the pulley y, rotates the brush E. The paper is unwound from the roller B, and, passing around thefront side of the roller G, comes in contact with the revolving brush E, which brushes off any dirt or dust that may have adhered thereto. The paper then passes between the iron rollers G D, which not only spread it out evenly, and thus prevent it from gathering into wrinkles, but also, by subjecting it to considerable pressure, partially smooth the surface ofthe same. Passing thence between the paper roller F and the burnishing-roller G, the said biu'nishing-roller, moving` at about five times the velocity (more or less) of the roller F, polishes or burnishes the enameled surface of the paper by the friction thereon of its revolving surface; or, in other words, the enameled surface of the paper is polished by the continuous rubbing` action upon it of the burnishing-roller G. Passing from this set or pair of rollers F G, the paper passes between the rearinost set or pair, H I, where the polishing process is completed by the burnishitlg-roller I, which acts upon the'surface ofthe paper in the same manner as the burnishing-roller G. The velocity of the bnrnishing-roller I being ten times (more or less) that of the paper roller H, or twice that of the other bnrnishingroller, G, gives a more finished gloss or polish to the partially-burnished surface of the paper than would be obtained by the use of a single burnishing-roller. rlhe paper, passing from the rollers H I, is wound upon the roller J, which may be removed when the entire sheet or piece of paper is polished and wound thereon.

What I claim as new, and desire to secure by Letters Patent, is-

El, substantially as herein set forth, for the purpose specilied.

WIL'BUR F. WRIGHT. Witnesses:

J. P. S. OTTERsEN,

B. F. GEORGE.

I A .l i.

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