US498917A

US498917A - Device for sprinkling traveling bands

Info

Publication number: US498917A
Authority: US
Publication date: 1893-06-06
Anticipated expiration: 1910-06-06

Description

(No Model.)

0. MODOWE LL, DEVICE FOR SPRINKLINGYTRAVELING BANDS.

No. 498,917. Patented June 6, 1893.

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UNITED STATES PATENT OFFICE.

CHARLES MCDOWELL, OF PHILADELPHIA, PENNSYLVANIA.

DEVICE FOR SPRINKLING TRAVELING BANDS.

SPECIFICATION forming part of Letters Patent No. 498,917, dated June 6, 1893.

Application filed October 14, 1892,

To all whom it may concern.

Be it known that I, CHARLES MCDOWELL, of the city and county of Philadelphia, State of Pennsylvania,haveinvented an Improvement in Devices for Sprinkling Traveling Bands, of which the following is a specification.

My invention relates to devices for sprinkling or wetting traveling carriers, aprons or dekles, for the purpose of cleansing the same and keeping them soft and pliable; and it consists of certain improvements which are fully set forth in the following specification and are shown in the accompanying drawings.

My invention is primarily intended for spraying or wetting with water or other liquids, any traveling band, apron or carrier which it is desired to keep clean, or to maintain in a moist or pliable condition.

My invention is particularly applicable to paper making machinery for the purpose of cleansing the traveling dekles and keeping them in a constantly moist and pliable condition, and also for the purpose of cleansing the Fourdrinier wire at the point where it comes in contact with the dekles, so as to prevent particles of pulp, and bubbles, slime or froth from being communicated to the dekles by the wires, or from adhering to the wire and filling up the meshes.

In the manufacture of paper any particles of pulp, bubbles 0r slime allowed to remain upon the dekles are liable to cause serious injury in the formation of the paper, as well as harm to the couching roll and injury to the wire. Such particles of pulp, 850., if permitted to adhere to the dekles when they leave the Fourdrinier wire, may drop off upon the web in process of formation, resulting in the production of holes, and weakened spots, or fractures in the already formed paper. If on the other hand, such particles adhere to the dekles and become dried thereon, they will form lumps or uneven places on the surface of the dekles, which will cause an unevenness in the running of the dekles, and will often produce break downs. Such particles of pulp if carried to the couching roll may cause serious injury to the jacket of the roll and to the wire. It is desirable, therefore, that the dekles should be kept clean. Mechanical brushes or devices for wiping the moving dekles are objectionable since they serial No. 448,816. (No model.)

tend to wear away the dekles, and to make them rough and dry. It is also desirable that the dekles should be kept moist and pliable, so that they will run more smoothly, will be less liable to crack or peel, and will press with a more even and uniform pressure upon the Fourdrinier wire. This latter is very desirable, since it produces a cleaner and more even edge in the paper, so that there is less loss in trimming the dekle edge and the paper is consequently wider.

My invention is designed to' accomplish all of these objects without causing any injury to the machine or any interruption of its op eration.

I shall now refer to the drawings for a description of the construction and operation of the apparatus by which I carry out my invvention.

Figure l is a side elevation of a paper making machine having my improved sprinkling and cleansing devices applied. Fig. 2 is a longitudinal sectional View of a portion of the machine on an enlarged scale. Fig. 3 is a vertical sectional view on the line ac-a: of Fig. 2. Fig. 4 is a similar View on the line yy of Fig. 8. Fig. 5 isa horizontal sectional View on the line zz of Fig.3. Fig. 6 is a perspective View of a detached sprinkling and cleansing device, and Fig. 7 is a similar View in detail of a portion of the same.

A is a paper machine of any desired character.

B are the dekles, which are located in the usual manner one on each side of the machine, and are carried by the drums b.

O is the Fourdrinier wire which carries the pulp.

E is a water nozzle or sprinkler located adjacent to the point at which the dekle comes in contact with the Fourdrinier wire. This nozzle or sprinkler is arranged to sprinkle and cleanse both the dekle and the wire at the point where they come into contact, one with the other, so that any lumps or particles that might be present at that point will be removed, and the dekle will bear evenly and firmly upon the wire. It will be understood that a nozzle or sprinklerE will be employed for each dekle.

For the purpose of thoroughly cleansing the dekle and wire, I prefer to construct the sprinkler E as shown in Figs. 2, 6 and 7, conthe employment in a paper making machine of a sprinkler or nozzle arranged at the point where the dekles and the wire come into contact for the purpose of cleansing the dekles and wire without regard to the specific construction of the sprinklers themselves. The nozzle sprinkler E by washing the wire also serves to keep clean the wire tightening rolls L; and also prevents lumps of pulp being carried under the couch roll M.

For the purpose of thoroughly washing and moistening the dekles, I employ upon each one a second sprinkler F, arranged about the dekle, so as to throw a spray upon all four sides thereof. The sprinkler F consists preferably of a hollow l'] shaped box having its inner surfaces provided with small perforations and provided at its ends with inclined projecting portions 9, also provided with perforations so as to throw a spray upon thelower face of the dekle, as if through the sprinkler.

Each sprinkler F may be provided with a deflecting hood or basin G to catch the drippings and such particles of pulp, &c., that may be washed oif. The deflecting hood or basin may be connected by a pipe or tube H with the save all. These deflecting hoods or basins catch the water and washings and prevent them from falling upon the pulp or the wire which if permitted, would result in injury to the paper.

For the purpose of more effectively washing off the dekles, I prefer to form the perforations in the sprinklers F inclined so that the spray will strike the surface of the dekle at an angle. The perforations in the top portion of the sprinkler I prefer to construct as shown in Fig. 3, the perforations in one half from the center inclining outward in one direction and those in the otherhalf inclining in the opposite direction. By so arranging the perforations it is apparent that the spray from the top of the sprinkler F will be thrown upon the top surface of the dekle outward so as to carry off any particles of pulp, &c., thereon. The perforations in the side portions of the sprinkler are preferably inclined downward so that the spray will act downwardly upon the side portions. The perforations in the sprinkler E may be similarly arranged at an inclination. Water may be supplied to the sprinklers E and F in any convenient manner. I prefer, however, to employa pipe J connected with the sprinkler F and extending around over the drum b and connectin g with the sprinkler E. The pipe .I receives water from a supply hose or pipe I as at h, and is provided with valves 2', j by which the supply of water to either sprinkler F or E may be shut off. Thus either sprinkler may be used independently of the other. The pipe H may be provided with arms K, K, by which it may be applied to the machine. The sprinkling device may thus be made disconnectable so that it may be applied to any machine. My invention contemplates the use of either of the sprinklers E or F without the other.

WVhile I prefer the details of construction which have been shown, I do not mean to limit myself to them as it is apparent that they may be varied without departing from the invention.

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

1. In combination with a paper making machine, a water nozzle or sprinkler arranged adjacent to the point of contact of the dekles with the wire, whereby the dekles and wire may be sprinkled and cleansed at their point of contact.

2. In a paper making machine the combination with the moving wire and the dekles, of sprinklers arranged near to the point of contact of the dekles with the wire, provided with a series of perforations adjacent to the dekles, and with a second series of perforations adjacent to the wire.

3. The combination with the dekle of a paper making machine, of a sprinkling head arranged about the dekle and provided with perforations adjacent to the four sides thereof.

4. The combination with the dekle of a paper making machine, of a sprinkling head having a perforated portion adjacent to the upper surface of the dekle and depending perforated portions adjacent to the sides of the dekle.

5. The combination with the dekle of a paper making machine, of a sprinkler arranged adjacent to the dekle, and a basin or deflector adjacent to the sprinkler for catching the drippings from the dekle.

6. In a paper making machine, the combination with the dekles and moving wire, of a sprinkler arranged adjacent to the point of contact between the dekle and wire and a second sprinkler adjacent to the dekle at a distance from the first.

7. In a paper making machine the combination with the dekles and moving apron, of a sprinkler arranged adjacent to the point of contact between the dekle and apron, a second sprinkler adjacent to the dekle at a distancefrom the first, and a common supply pipe connecting said sprinklers.

8. A sprinkling device for traveling bands, aprons 850., consisting of the pipe, provided with the valves, and the sprinklers E and F carried at the opposite ends of the pipe.

9. A sprinkling device for traveling bands, aprons, 650., consisting of the pipe, provided with the valves, the sprinklers E and F car- ICS ried at the opposite ends of the pipe, and the In testimony of whichinvention I have here: basin or deflector, carried by the sprinkler F. unto set my hand.

10. A sprinkling device for traveling bands,

aprons, &c., consisting of the pipe provided CHARLES MCDOWELL 5 with the valves, the sprinklers E and F cztr- Witnesses:

i'ied at the opposite ends of the pipe, and at- ERNEST HOWARD HUNTER,

taching arms carried by the pipe. 0. M. DIETTERIOH.