US596939A - Cleansing apparatus for paper-making machines - Google Patents

Description

(Nu Model.)

l/V VE/VTUI? Arromv W Q \M Patented Jan. 4, 1898.

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IVILLIAM Ii. MILLSPAUGH, OF PULTENEY, NEW YORK, ASSIGNOR OF ONE- IIALF TO THE DEMING COMPANY, OF SALEM, OHIO.

CLEANSING APPARATUS FOR PAPER-MAKING MACHINES.

SPECIFICATION forming part of Letters Patent No. 596,939, dated January 4, 1898.

Application filed September 22, 1896. Serial No. 606,650. (No model.)

TO (ZZZ Zbhm it may OOH/067%: cylinders or parts which come in contact with Be it known that 1, WILLIAM H. MILLS- the pulp should be kept scrupulously clean PAUGH, a citizen of the United States, residand clear from adhering pulp and the various ing at Pulteney, in the county of Steuben and foreign substances, such as resin or clay con- 5 5 State of NewYork,haveinventedcertain new tained in pulp made from wood and other and useful Improvements in Cleansing Appafibrous materials. Otherwise the parts afore= ratus for Paper-Making Machines; and I do said would shortly become coated or clogged hereby declare the following to be afull, clear, by such deposits and their efficiency seriously and exact description of the invention, such impaired. To overcome this difficulty,,wash- 6o 1 o as will enable others skilled in the art to which ing by hand has been resorted to. Likewise a it appertains to make and use the same. solution of sulfuric acid has been used upon My invention relates to the art of paperthe making-wire, followed generally by the making, having more particular reference to application of a bruslnthis being necessarily machines used in this connection, and espeatedious and unsatisfactoryoperation at best, [5 cially to cleansing apparatus constituting part the acid when used having a deleterious efiect of such machine. upon the wire and all parts with which it In the manufacture of paper by modern comesin contact. Heretoforeit has also been methods and means it is essential that the mathe practice to locate at suitable points upon chine employed should be rapid, continuous, the machine transversely-arranged shower- 2c and practically automatic in its operation, an pipes perforated so as to direct water in a example of such machine being furnished in multiplicity of independent streams upon the that known as the Fourdrinier type. In parts to be cleansed. This system, however, this class of paper-making machines is emis known to require a large volume of water, ployed a continuously operated system of necessitating the use of correspondingly large 7 5 2-5 strainers, agitators, conveyers, guide tension, centrifugal pumps and filtering apparatus and couch rolls, together with presses, driof proportion ate size. Furthermore, such ers, calendering and cutting appliances for shower-pipes are necessarily superficial in operating successively upon wood-pulp or their action, since their internal pressure, and other fibers previously converted into the consequently their safety, demands that per- 3o semiliquid condition. Highly important, if foratlons therein must not occur more frenot the chief element of such system, is its quently than about four or five to the inch, making-wire, consisting of an endless web of while the meshes of an ordinary making-wire wirecloth having ahorizontal or working face number no less than seventy to the inch, and traveling upon suitable transverse bearings the felt conveyers are even more closely 35 from the breast-roll to the couch-rolls, while woven.

in train with the latter and similarly sup- The main object of my invention, thereported is a first or wet felt and a second or fore, is to facilitate the removal of all extra dry press-felt, also of great importance, each neous and foreign substances or deposits from being endless and serving to convey papermaking-wires, felts, screens, rolls, or other 0 o pulp to suitable rolls used for compressing pulp-bearing and pulp-contacting parts of a the web and extracting water therefrom. A paper-making machine without retarding or dandy-rolWis also employed, consisting of a interrupting their continuous use and operwire cylinder, located above the making-wire, ation. This I accomplish by the employment revolved by contact with the web beneath and of a sheet of water or other fluid forcibly di- 5 45 bearing upon its surface letters, figures, or rectedthrough or againstparts operated upon designs in relief for the purpose of impressing in an unbroken sheet or spray as distinguished or water-marking the web as it passes. In from a multiplicity of streams.

the operation of such machines it is a matter Further, my invention contemplates andinof prime importance that the meshes of the eludes the employment of a series of inde- I00 50 making-wire, the texture of the felt-c0nveypendent spraying-nozzles, a supplypipe comers, the wires of the dandy-roll, and any other municating with each, a valve-plug common to all of the nozzles, a consequent reduction in the volume of water used, a proportionate decrease in the size and power of pumps required, and a more efficient system generally.

The invention will be hereinafter particularly described, and pointed out in the claims.

In the accompanying drawings, which form part of this specification, and whereon corresponding letters of reference indicate same parts in the several views, Figure l repre' sents in plan view'the closed end of a common supply-pipe, the handle end of a continuous valve-plug, a hanger or support for the latter, and one attached nozzle, while broken away, but in alinement therewitlnis shown in horizontal section similar parts, including a secondary stop for valve-plug at opposite or inlet end of the apparatus. Fig. 2 is a central vertical section through the supply-pipe, one attached nozzle, and valveplug for the latter, taken on the line 2 2 of Fig. 1; and Fig. 3 is an end view of the invention, showing its supply-pipe, valve-rod handle, and an adjustable stop in the latter for limiting its relation.

Reference being had to the drawings and letters thereon, A indicates a supplypipe broken at intervals in its longitudinal center by a series of outlets B, closed at one end by a screw-cap C, and at its opposite end provided with a coupling or an elbow D, communicating with a source of water-supply. Throughout the length of pipe A and immediately over its outlets B are mounted a series of corresponding spraying-nozzles E,eaol1 having a flanged base F and an opposite hinged member G, constituting a coupling that surrounds said pipe, and is secured by a set-screw H. The body of nozzle E is bored centrally by a water way or channell, communicating at one end with outlet B aforesaid, at this point surrounded by a packinggland J and at its opposite end opening into a cylindrical valve-chamber K. The surface of valve-chamber K is broken by a dischargeport L, formed by a milling-tool directed to one side of its longitudinal center and at an angle to its cutting-line, thus producing the spraying-lip M, which presents an acute angle to action of the stream when in use.

Passing directly through valve-chamber K in each of the nozzles E is a continuous Valve rod or plug N, common to all nozzles in the series. At suitable intervals this plug N is perforated by ports 0, the inlet ends of which are somewhat enlarged, as at P, and are adapted to register with channels I of the nozzles. At each end of all nozzles E is provided a stuffiing-box consisting of a screw cap or follower Q, bearing an internal gland-annulus R, for acting upon and compressing an elastic or other packing-gland S, surrounding the valve-rod. This rod or continuous valveplug N is thus supported in the nozzles E, but receives additional support in suitable hangers T near its ends or at intermediate points, and is rotated by a handle or crank U, fixed to one end. In a boss V, upon the handle U, is located an adjustable screwstop WV, adapted to engage the surface of pipe A, and thus limit rotation of the valve-plug, while near its opposite end same rod carries a secondary stop X, also provided with an adj Listing-screw Y, for engaging the surface of pipe A with like effect, the rod itself being of a paper-making machine at any or all points where needed, being at all times .in connection with a piston or plunger pump for throwing clean Water or other fluids, and especially efficacious in the following uses: first, when located in connection with the return portion of the making-wire in position to spray through its meshes; secondly, when similarly located with reference to the wet and dry press-felts; thirdly, when arranged above the dandy roll and sometimes the couch-rolls; and, fourthly, when placed above the gathering-cylinder of a wet machine, the washing of rolls or cylinders mentioned being from the'outside in rather than from the inside out.

It will be noted also that the nozzles E employed may be increased or decreased in number, according to the width of the machine and their special requirements. They are generally equidistant, however, and are by preference spaced about five inches apart, but two being shown in the drawings for purposes of clearness.

The operation of this invention is the same whether applied to a Fourdrinier machine, to a particular portion thereof, to a cylinder machine, or to any other service wherein a similar sheet or spray of fluids is desired, and it will therefore suffice to describe its use and operation in one connection only, selecting for the purpose an endless making-wire, although the saving eftected by the use of my invention upon the expensive felt conveyers made of pure wool is even greater.

\Vater, either hot or cold, pumped into main supply-pipe A under a pressure from forty to fifty pounds instantly enters all channels I through the registering outlets 13, each throttled by the imperforate portion of common valve rod or plug N. A partial rotation of said rod or plug through the agency of its handle V now serves to simultaneously open all ports 0, establishing communication between them and their respective spraying-lips M, against which latter the several streams forcibly impinge and from which they are discharged in as many thin sheets having diverging sides. These sheets of coarse spray are thus projected directly upon and through the meshes of the making-wire as it returns after having delivered its web to the couchrolls, with the effect of thoroughly removing ICO all adhering fibers, sediment, or foreign matter and preparing the wire for a fresh supply of stuff as it continues on its circuit.

The position and location of nozzles E with relation to each other and with relation to the work imposed upon them determine the point at which the outer edges of their respective discharges meet to form one unbroken sheet, such point by preference being the surface sprayed. Nith reference to rod N it is obvious that a partial rotation one way or the other, limited by its graduated stops XV X ,regulates the quality of spray produced, permitting a coarse or a fine discharge, according to requirements. A complete half-rotation of same rod also serves when desired to reverse the normal. position of constricted ports 0 for the purpose of clearing them at times from sediment which may accumulate therein and tend to choke them.

Having thus described the construction and operation of my invention, What I claim is 1. In a paperanaking machine means for delivering to parts thereof a cleansing fluid in one continuous sheet, substantially as described.

In a paper-making machine a nozzle for delivering a cleansing fluid in one continuous sheet, substantially as described.

3. In a paper-nmking machine aseries of valved nozzles for delivering a cleansing fluid in one continuous sheet, substantially as described.

4;. In a paper-making machine aseries of nozzles controlled by a common valve rod or plug for delivering acleansing fluid in one continuous sheet substantially as described.

5. In a papenmaking' machine the combination with, a common supply-pipe, of a series of nozzles for delivering a cleansing fiuid in a plain continuous sheet, substantially as described.

6. In a paper-making machine the combination with a common supply-pipe, of a series of nozzles communicating therewith, a continuous rotatable valve rod or plug bisecting said nozzles, and a graduated stop forlimiting such rotation substantially as described.

7. In a paper-making machine the combination with a common supply-pipe, of a series of nozzles communicating therewith, a continuous rotatable valve rod or plug bisecting all nozzles, a handle for rotating said rod or plug having a graduated stop, and a secondary stop, substantially as described.

In testimony whereof I subscribe my signature in presence of two Witnesses.

IVILLIAM H. MILLSPAU GH.

lVitnesses:

UHARLES 0. Rooms, FRED J. EMENY.

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