US992694A

US992694A - Method of making paper.

Info

Publication number: US992694A
Application number: US61179211A
Authority: US
Inventors: Daniel A Smith; John P Mann
Original assignee: DISTR OF COLUMBIA PAPER Manufacturing Co
Current assignee: DISTRICT OF COLUMBIA PAPER MANUFACTURING Co; DISTR OF COLUMBIA PAPER Manufacturing Co
Priority date: 1911-03-02
Filing date: 1911-03-02
Publication date: 1911-05-16
Anticipated expiration: 1928-05-16

Description

1 A. SMITH & J. P. MANN.- METHOD OF MAKING PAPER.

- I APPLICATION FILED MAP. 2, 1911. I v 992594, Patented May 16, 1911.

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DANIEL a. SMITH,.OFDRUMMOND,MARYLA1TD, AND'JOHN r. MdNN," or wnsnrndron} msrnrcror COLUMBIA, assrenons ro ms'rnrc'r or COLUMBIA rerun ann: I raorunms coMrANY, or-wAsHmeroN; ms'rmo'r'or COL MBIA, A oonrona'rron or VIRGINIA.

mn'rnonor MAKING rArna.

Patented iua e, 1911.

Application filed March 2. 1911. Serial No. 611,792.

To all whom it may concern:

Be it known that we, DANIEL of Drummond, in the county of Montgomery and State of Maryland, and JOHN P..

MANN, of Washington, District of Columbia, citizens of the United States, have invented a Method of Making Paper, of which the following is a specification.

Our invention relates to the class of papermaklng, and is more especially an improved method of making paper upon a Fourdrinier machine to produce anornamenta-l finish with certain peculiar characteristics.

namental finish may be imparted to one side of the paper by dragging something over the surface of the wet web or layer of pulp before much of the water has; been extracted therefrom, the result of such operation being that some of the fibers of the wet web or layer of pulp are displaced and aggregated in irregularly disposed groups which are not 'afiected by the subsequent operations of the machine, whereby the finished paper has produced thereon or therein peculiar narkings in the nature of distinct lines usually varying in thickness and wavy,? giving an ornamental appearance.

These markings may be formed upon theentire surface of the paper by having the drag extend from one edge of the layer of pulp to the other, or said markings may be formed in stripes by having spaced apart drags. v a p In the present instance, therefore, our

present invention consists principally in the method of making paper with certain ornamental characteristics, and in the article itself; all as hereinafter fully described and particularly set forth in the appended claims.

In the. accompanying drawings showing means for carrying out, our improved method of making ornamental paper: Figure 1 is a plan view illustrating the method of producing a-paper in which the mark- A. SMITH,-

' finished paper.

ings cover practically the entire surface of the sheet of paper. Fig. Q'is a similar view illustrating the method of producing paper in whlch the markings form stripes on the surface of the paper. Fig. 3 is a sectional view on the line 3- 3 of Fig. 2.

In carrying out our method of producing paper having an ornamental finish We operate upon the wet web or layer of pulp at such a time during the making of the paper that some of the fibers of the pulp may be readily rolled, moved or displaced and aggregated or assembled in groups which substantially maintain this relation or condition during the subsequent operations of the machine, whereby such groups of fibers produce peculiar markings on the Of course the displacing and grouping of some of the fibers of the wet web or layer of pulp may be accomplished in various ways, for instance by permitting something to drag over the surface of the layer of pulp, the nature of the" groupings and resulting markings varying to some extent according-to the weight of the drag which may bensed.

In the-present instance we have shown the .method employed in connectionwith what is commonly known as a. Fourdrinier paper making machine, in which the layer of pulp from the shoes is supported on the movi g wire 5 for convenience in extracting excess of water during the progress of the layer of pulp to the rolls, and in the present instance the device for dragging the surface ofthe i layer of pulp is placed a short distance from the slices so as to act upon the layer of pulp before much of the waterhas been extracted therefrom.

In Fig. 1 there is shown a'simple drag,

consisting of a strip, 6, of suitable material,

preferably felt, which is supported atone end by a cross-bar 7, so that the other or free end or edge of the strip will rest upon" and drag over the surface of the layer of pulp 8. The crossbar issupported in any suitable manner a slightdistance above the layer of pulp (see Fig. so that only the.- outer or free end or edge of said strip will drag upon the layer of pulp. As the outer or free edge of the strip 7 drags upon-thou layer of pulp some of the fibers of the latterv are moved, rolled or displaced and a'g'g're gated or grouped in the form of lines, :'1,.'

which maintain this relation, substantially during the subsequent operations of the ma chine in finishing the paper. When the strip or drag extends clear across the sur face of the layer of pulp, as shown in Fig. .1 of the drawings, the entire surface of the paper when finished will have the markings aper produced by pearance.

In Fig. 2 of the drawings we have shown the employment of a drag in which several engaging or dragging edges, 10, spaced apart, act to displace and aggregate the fibers of the layer of pul 11 in the form of stripes 12, each stripe aving a number of groupings, as 13-, which particularly define the stripe in the finished paper. The

dragging edges or members 10 may be inde pendent-of each other, or separate strips,

but preferably they are formed from a singlestrip, as shown in the drawing, in which the single strip, 14, of suitable material,

formly as felt, is cutaway at its outer edge, at intervals, to form the drag members, said strip being supportedat its opposite or inner edge by a cross-bar 15, to which it is attached.- By forming the spaced apart edges or drag-members in this manner the body of the strip serves to hold said members at the proper distance apart so that the stripes formed thereby will be uniform. In this instance, as will be obvious, those portions only of the layer of pulp are acted upon .which pass beneath the spaced apart edges or drag-members 10, the fibers of the other portions ofthe layer of pulp that pass between the spaced apart edges or drag-members having their fibers practically unidistributed and forming plain stripes. 7 i

It will be understood, of course, that in both instances the layer of pulp is carried by the supporting-wire of the paper making machine, under the drag so that the latter will act upon the upper surface of'the layer of pulp, and by supporting the drag device shown in Fig. 2 stationary straight stripes will be formedon the finished paper, is indicated in said Fig.2. It will be understood, however, that to produce wavy stripes it would be necessary only to impart a laterally reciprocating motion to the drag, and this could be done in a very simple manner. Furthermore, the stripes 12, having the peculiar markings may be colored or tinted different from the intermediate plain stripes by simply applying color to the spaced apart portions 10, in which instance these portions would be of some fabric that would properly take the color mixture and distribute it. 1

thesurface of a wet web or layer of pulp to thereby cause some of the fibers to roll, move or become aggregated in groups which will subsequently produce well defined markings in the finished paper.

Having thus described our invention, what we claim as new and desire to secure by Let ters-Patent, is

1.. The method of making paper of ornamental finish, which consists in subjecting the wet web or layer of pulp to the action of a device which drags upon the surface thereof during the making of the paper.

2. The method of making paper of ornamental finish, which consists in subjecting the surface of the wet web or layer of pulp on the carrying-wire of a Fourdrinier ma chine to the action of a drag which displaces and aggregates some of the fibers of the pulp forming groupings which result in markings on the finished paper.

3. The method of making paper of ornamental finish, which consists in subjecting the wet web or layer of pulp to the action of spaced apart members which drag upon the surface of the layer of pulp to displace and aggregate some of the fibers thereof.

4. The method of making paper of ornamental finish. which consists in subjecting the upper surface of the wet web or layer of pulp on the carrying-wire of a Fourdrinier machine to the action of spaced apart devices which drag upon the surface of the layer of pulp to displace and aggregate some of he fibers thereof.

5. As a new article of manufacture, paper having markings thereon produced in the making of the paper by dragging the surface of the layer of pulp as itpasses between the slices and rollers to displace and aggregate some of the fibers of the pulp.

6. As a new article of manufacture, paper having stripes produced in the making of the paper by dragging portions of the surface of .the layer of pulp as it passes between the slices and rollers to displace and aggregate some of the fibers.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

DANIEL A. SMITH. JOHN P. MANN. Witnesses: NEILL S. BROWN, I JAMES W. HUGHES.