US352493A - Charles smith - Google Patents

Description

(No Model.)

o. SMITH.v DANDY ROLL POR USB IN PAPER MAKING.

Patented Nov. 9, 1886.

.l v. l

N4 PETERS. Phololilhug'lphul'. Washington. D. C4

UNITED STATES 'PATENT Trice.

CHARLES SMITH, OF BELLEVILLE, NEI/V JERSEY, ASSIGNOR TO THE EAST- W'OOD VIRE MANUFACTURING COMPANY, OF SAME PLACE.

DANDY-ROLL FOR USE IN PAPER-MAKING@ SPECIFICATION forming part of Letters Patent No. 352,493, dated November 9, 1886.

Application tiled June 25, 1886. Serial No. 206,183. (No model.)

the same, reference being h ad to the accompanying drawings,and to letters of reference marked thereon,which form a part of this specification.

Theobject of this invention is to prevent the frothy matter which ordinari] y Works th rough the meshes of the wire covering of the dandyroll, fromthe imperfectly-formed paper upon which said roll is working,from hardening and thus clogging the meshes, so that the functions of the roll are materially interfered with, the

cleansing of the roll often madenecessary, andv the manufacture of paper greatly retarded.

A further object is to relieve the paper impressed by the dandy-roll from undue pressure, and to secure amore perfect and even or regular impression.

The invention consisis in the arrangements and combinations of parts, substantially as will be hereinafter set forth, and finally be embodied in the clauses of the claim.

Referring to the accompanying drawings,in which like letters indicate corresponding parts in each of the several figures, Figure l is a front elevation of the dandy-roll and accompanying mechanism, the former being broken away to show a certain pipe therein. Fig. 2 is asectional view taken through line Fig. 3 is a face view of a bearing for said pipe, a section being taken through the pipe at line y. Fig. 4. is a section on linezthrough the pipe,to show a face view of a certain collar by means of which the dandy-roll is prevented from moving longitudinally on the shaft or pipe. Fig. 5 illustrates the construction of the said shalt or pipe, on an enlarged scale; and Fig. 6 illustrates a modied construction, which will be duly explained.

In said drawings, A indicates the dandy-roll, which is of any ordinary construction, but is preferably made in accordance with the invention set forth in Letters Patent of the United States issued August 12, l884,and numbered 303,401, to which reference is had, that a perfect understanding of the general construction of the roll may be gained. Said dandy-roll is carried by a fixed shaft, b, which is connected with asupply, ci, and extends longitudinally through the roll, being preferably square or quadranguiar and provided with a series of perforations, by which the water is evenly distributed along the interior of the roll.

I prefer to form the perforations (marked b b in Fig. 5) at the under side of the shaft or pipe, as by that means the water or spray falls only on the roll as it (said roll) engages the paper on the wire-cloth, the water thus being prevented from being forced through the meshes of the roll-covering in drops, which, falling on the soft paper, areliable to spot the same, and thus impair its value.

To relieve the paper from an excess of weight,which would tend to crush it, I have formed the shaft b quadrangular, as indicated in Figs. 2, 3, and-l, though it may be of other shapes, and on the same have arranged a slotted journal block or bearing, c, upon which the dandy-roll may revolve, under the influence of the paper f and cloth g of the machine, in the usual manner. The slot in said bearing may be provided with springs, as the one in Fig. 6, to prevent undue freedom or looseness of motion. By this construction it will be evident that the said wire-cloth and paper thereon do not sustain the weight of the shaft b and the water therein, but only the rol1,whicl1 is free to adjust itself to the cloth, and thus bears evenly thereon, so that a more perfect impression is secured throughout the length of the paper.

By means of the adjustable collars or stops e e the dandy-roll may be moved laterally in either direction on the shaft, and be then secured in place in accordance with the position of the Wire-cloth thereunder.

The tloW of water to the perforated shaft b is' controlled by asuitable valve, n, Fig. l, which 'may be of any ordinary construction.

Departures from the constructions above described may be made without avoiding the scope of this inventionfas, for example, the

slot may be transferred to some other part, and the shaft under some circumstances may be round in section.

Having thus described the invention, what claim as new is* 1. In combination with a dandy-roll, apipe, b, therein, having perforations on the under side only, substantially as and for the purposes set forth.

2. The combination of the dandy-roll and a shaft supplying Water to said roll, said roll having a vertically-movable relation to said shaft, substantially as set forth.

3. In combination, the tubular and perfo# rated shaft, and dandy-roll having a movement on said shaft in a direction at angles thereto, substantially as described.

4. The combination, with the dandy-roll, of the perforated shaft and slotted journal, said parts being arranged and adapted to operate substantially as set forth.

5. The combination, with the fixed quadrangular shaft, slotted journal-bearing, and dandy-roll, al1 said parts being arranged and adapted to operate substantially as and for the purposes set forth.

6. In combination with a fixed perforated pipe connected with a suitable supply-pipe having a valve to control the flow of water therethrough, the perforations being on the under side of said pipe only, a dandy-roll, and a slotted journal-bearing, c, said parts being arranged and adapted to operate substantially as set forth.

In testimony that I clailn the foregoing I have hereunto set my hand this 22d day of June, 1886. Y

CHARLES SMITH.

Witnesses:

CHARLES H. PELL, OSCAR A. MICHEL.

Images