US326687A

US326687A - Edward gilbert sparks

Info

Publication number: US326687A
Authority: US
Publication date: 1885-09-22
Anticipated expiration: 1902-09-22

Description

(N0 Iviadel.)

E. G. SPARKS.

PREPARATION OF PARAPPINB OE WAX PAPER.

Patented Sept. 22, 1885.

IN'VBNTOR:

(5 5 'a/wg BY ATTORNEYS.

WITNESSES Elm re STATES ATENT FFEQEC EDNVARD GILBERT SPARKS, OF NEW YORK, N. Y.

PREPARATION OF PARAFFINE OR WAX PAPER.

SPECIPICATIQN forming part of Letters Patent No. 326,687, dated September 22, 1885. Application filed December 13, 1884. (No model.)

To aZZ whom it may concern:

Be it known that I, EDWARD G. SPARKS, of the city, county, and State of New York, have invented certain new and useful Improve ments in the Preparation of Pal-affine or \Vax Paper, of which the following is a full, clear, and exact description.

This invention relates to the preparation of paper for various preservative purposes, and more especially for the exclusion of moisture or air and dampness when the paper is used as a wrapper or cover. Paper has had such preservative character given to it by coating or incorporating with it wax or other fatty n1attersuch as paraffine-and is usually known as wax-paper, which will be the term here used in describing the invention. The process heretofore used for such purpose has been to run the plain paper over a roller covered with melted wax in such manner that it would be only smeared with the wax on its one side or surface, said wax afterward being forcibly pressed into and partially through the paper and incorporated with it, one side of the paper being thus left unprotected with the wax. v

My invention produces a superior waxpaper in which both sides are thoroughly and evenly coated with the wax, and in which the wax is placed upon the surfaces of the paper just where it is needed without fully filling the body of the paper. \Vax-paper thus made may be applied with the same advantage, either side outermost, and, by not filling the body of the paper with wax, a saving in wax is made, and consequently a saving in the cost of manufacturing the wax-paper.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a longitudinal sectional elevation of an apparatus for making wax-paper in accordance with my invention; Fig. 2, a face view of a roller-guide for the paper used in the vat or trough containing the melted wax with attached means for adjusting said roller when introducing the paper or for vary ing the immersion of the paper in the wax. Fig. 3 is a view upon a larger scale than shown in Fig. 1 of certain scrapers used to remove the surplus wax from the paper; and Fig. 4, a

sectional View of a piece of my improved waxpaper.

A in Fig. 11. indicates the roll or webbing of paper to be waxed mounted on a suitable drum or reel, A, carried by the frame of the apparatus at the one end thereof, and B is a winding-reel arranged at a proper distance apart or at the opposite end of the apparatus for taking up the paper after it has been waxed, and for drawing the paper through the apparatus. The paper roll or webbing A is caused to first pass up and over a loose guide-roller, G, and from thence down and under a further loose guide-roller, 1), in the trough E, which contains the melted wax and which forms the wax-bath. This guide or roller D is so arranged that when the process is being carried outit is wholly or mostly submerged in the melted wax b or" the bath, whereby the paper in passing down to and up from said roller has both its sides or surfaces exposed to the wax, and so that when it leaves the bath it is waxed on both sides instead of only on one side, as heretofore. Said roller D is adjusted to its proper position in the bath. and provision made for easy adj ustmcut of the paper when setting up a new roll by hanging the roller in a frame, G, which is made capable of being moved up or down within grooved ways 0 in the ends of the trough to give a proper immersion of the roller, and to raise it out of the wax when setting up a new roll of paper. After the paper leaves the bath it is passed up between two series. H H, of opposite side scrapers, (I, each series or frame of scrapers, which are here shown to occupy a slightly-inclined position, having any number of scrapers arranged one above the other, and the scrapers in either frame being so arranged that they are intermediate of and project in between the scrapers of the other series or frame, thus causing the paper, as it passes up between the two sets of scrapcrs,to move in a zigzag course. This flexing of the paper is important to secure a perfect removal of the surplus wax and to give a coating of the required thickness and evenness on the opposite sides or surfaces of the paper, and such flexing action and strain on the paper is made adjustable to meet different require ments. This may be done by making the one frame or series, H, of scrapers fixed, and the other frame or series, H, adjustable by a slide and set-screw, as shown, or otherwise, to or from the fixed frame. In this way the thickness of the wax left on the paper by the pressure of the scrapers may be regulated to the greatest nicety and the surplus wax be returned to the bath. Both the wax in the trough and the scrapers for removing surplus wax may be heated by steam-pipes e in the trough and frames carrying the scrapers, or the same may be otherwise heated, as desired. From the scrapers the waxed paper passes up over one or more guide-rollers, I, to the takeup and draft-reel B. This reel is set at a suitable distance from the scrapers to allow of the wax cooling or setting on the paper before the paper is wound on the reel. WVax-paper thus made will, as shown in Fig. 4, be much superior, and may be produced much cheaper, it being evenly coated with the wax a a on its opposite sides, Without the body of the paper A being fully filled with the wax, thus applying the wax where it is-required, and saving it where the same is not needed, and insuring .a unifrom thickness of wax or coating on both sides of the paper alike. It may here be observed that the scraper-frames H H are shown in the drawings immediately over or projecting at their lower ends down into the upper space of the trough E on the delivering side of the roller-guide D. These frames, which are set at a suitable distance apart, with the one, H, of them adjustable along the main frame, as by an attached slotted sliding support, f, and setscrew gto vary the distance of the frames apart, or rather the projection of scrapers on them between each other, are kept sufficiently heated by the steam-pipes e, or otherwise, to heat or warm the scrapers (1, so that the wax on the paper during the passage of the latter between the scrapers will be kept warm or in its melted condition to insure the smooth or proper laying of the wax on opposite sides of the paper simultaneously and removal of surplus wax therefrom and return the same back to the trough.

The scrapers d d, which may have a chiseledge, as shown, and be secured by angular back extensions to the inner faces of the frames H H, should be of a length or width on their edges to take in the whole width of the paper passing in between them.

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

1. The scraper-frames H H, constructed upon their inner faces with alternately-projecting blades 01 and with heating-pipes 'arranged behind the blades, substantially as shown and described.

2. The combination, substantially as described,of the scraper-frames HH, each frame having projecting scraper-blades and heatingpipes, whereby the blades will be heated and the waxed paper will be heated upon both sides simultaneously and be scraped upon both 7 sides as it passes between the frames, as set forth.

3. In an apparatus for preparing waxed paper, the combination, as herein described, of

the following instrumentalities, namely: a

tank for containing the hot wax, a device within the tank for simultaneously conducting both sides of the paper into contact with the hot wax, and heated scraper frames with hot blades arranged above the tank for simultaneously heating the waxed paper on both sides and also scraping the waxed paper on bot-h sides during the passage between the scraperframes, as set forth.

EDWARD GILBERT SPARKS. Witnesses:

EDGAR TATE, CHAS. T. SOHIVELY.