US691899A - Machine for washing sugar. - Google Patents

Description

Patented 1an. 28, |902. L. mms. MACHINE FOR WASHING SUGAR.

(Application tiled June 7, 1899.)

2 Sheets-Sheet l.

(No Model.)

Tn: Nonms PETERS do, FNoaLl'rNo., WASHINGTON. u. c.

No. a9|,a99. Patented 1an. l23, |902.

L. FucHs. y MACHINE FUR WASHING SUGAR.

(Application filed June 7, 1899.) V (No Model.) 2 Sheets-Sheet 2.

llN-rTEn STATES PATENT OFFICE.

LUDWIGFUCHS, OF LUNDENBURG, AUSTRIA-HUNGARY.

MACHINE FOR WASHING SUGAR.

SPECIFICATION' forming part of Letters Patent No. 691,899, dated January 28, 1902. Application filed June 7,1899. Serial No. 719,694. (No model.)

T0 all whom t may concern.'

Be it known that I, LUDWIG FUCHS, a subiect of the Emperor of Austria-Hungary, residing at Lu ndenburg, in the Province of Moravia, in the Empire of Austria-Hungary, have invented certain new and useful Improvements in Machines for Washing Sugar; and I do hereby declare the following to be a full, clear, and exact description of the in- Vention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked. thereon, which form a part of this specification.

This invention has relation to appliances for washing or clearing sugar, and more particularly to that class of appliances comprising a swinging spray-pipe adapted to be swung into and out of the centrifugal and provided with a cut-olf device operating to cut od the supply of clairce from the spraypipe when the latter is swung out of the ceutrifugal.

My invention has for its object means for adjusting the length of the spray-pipe relatively to the height of the basket Aof-the cen- Y trifugal.

It has for its further object a peculiar coustruction of spraying-nozzle and the combination therewith of means whereby the area t0 be covered by the clairce can be varied within certain limits.

Finally, the invention has for its object the combination, with the swinging spray-pi pe, of a peculiar cut-off device.

That my invention may be fully understood, I will describe the same in detail, reference being had to the accompanying dravings, in which- Figures 1 and 2 are fragmentary vertical sections of a centrifugal equipped with my improved washing appliances. Figs. 3 and Il are fragmentary top plan views of Figs. l

and 2, respectively, shown partly in section, the spray-pipe being shown as swung out of the centrifugal; and Fig. 5 is a detail sectional view of the outer end of the spray-pipe and its nozzle.

On the head of the centrifugal A is arranged a plate ct, adjustable toward and from the axial space of said centrifugal by means of bolts a', passing from the head of the centrifugal through slots o? in said plate and carrying suitable lock-nuts. The plate u, has ,secured thereto or formed integrally therewith a tubular union b, screw-threaded intel'- nally at its upper flanged end for the reception of a valve-,seat plug b' for a cone-valve o, moving freely in the union l) and being provided with guide-ribs o. To the plug b is screwed a `coupling-sleeve b2, by means of which the clairce feed-pipe c is coupled to union b in a well-knownvmanner. The spraypipe d extends into the coupling b and has an attenuated screw-threaded portion d fitting the aforesaid internal -screwthreaded portion of union b, the inner end` of said attenuated extension lying close to the ribbed stem of valve o, and the pitch of the screwthreads and the travel of the valve o to its seat are so adjusted that when the pipe d is swung around an arc of a circle of about one hundred and eighty degrees in one direction the pipe d will move into union b sufficiently to carry the valve 'u to its seat in plug b', and thus cut od communication between the clairce feed-pipe c and said pipe d. On the other hand, when the valve fu is seated the portion of greater diameter of pipe ol abuts against a shoulder b3 in tube l), with a view to provide a second cut-olf in case of leakage at the valve. The spray-pipedextends through a flanged sleeve d2, by means of which and a coupling-sleeve (Z3 it is coupled to the tubular union l), as more particularly shown in Fig. 3.

The spray-pipe d is an angle or L pipe made in two sections screwing into each other, as shown so that the leg d5 d6 may be len gthened or shortened relatively to the height of the mass of sugarin the basket of the centrifugal. Although I prefer the construction described, it is obvious, however, that the spray-pipe d may have formed thereon the casing or barrel of a stop-cock, as shown at d4, Fig. 4, and the union-pipe b, constructed in the form of a stop-cock plug having a port leading into said casing and so located relatively to the inlet of pipe d as to be out of register therewith when the said pipe is swung out of the centrifugal, Fig. 4,and in register when swung into the centrifugal, Fig. 2.

In the arrangement shown in Fig. 3 the IOC valvefhas free play in cylinderb and is of a well-known construction, the arrangement being such that when the spray-pipe d is swung out of its operative position, Fig. l, into the position shown in said Fig. 3the said pipe d will be screwed into cylinder b and move the valve fto its seat to cut off the clairce from the spray-pipe. When, on the contrary, the spray-pipe is swung into its operative position, Fig. l, the said pipe is screwed out of cylinder b and .caused to recede from the valvef, the latter being then unseated by the pressure of the clairce in pipe c.

The nozzle end of the angle-pipe CZ is formed at right angles to the section d3, so that when said pipe is swung into the 'centrifugal the nozzle `will face the inner wall thereof. The

nozzle portion 7c of pipe d has an internal, spiral fluid-passage Zd, and in the otherwise,"y smooth bore of said portion Zt is fitted an internally-screw-threaded sleeve h, into which is screwed a conical plug g. Onto the nozzle portion 7c of pipe OZ is screwed the sprayingcap l, provided in its outer face with a conical axial recess Z2 in communication with a similar recess Zl in the inner face, concentric` with the cone of plug g. The spraying-cap Z has. a Iiange or projection h' encompassing the recess Z' and forming a central fluid-chamber fm and an encompassing packing-chainber for the reception of a suitable packinggasket m. Inasmuch as the clairce is fed to the spraying-nozzle under pressure, it acquires a swirling or rotary movement as it flows through the spiral passage 7c' and thence into chamber m about the cone of plug g and issuing from the cap Z is converted by the eX- tern al'conical recess Z2 in said cap into a cone. It is obvious that if the diameter of said external recess Z2 is in proper proportion relatively to the height of inner wall of the basket of the centrifugal the cone of spray will cover the entire area of said wall in a vertical direction and a similar area in a horizontal direction, hence a much greater area than could be covered by a perforated spray-pipe. On the other hand, by adjusting the plugg nea-rer to or farther from the outlet-port in cap Z the volume of clairce sprayed onto the sugar can be varied, while the nozzle can readily be adjusted to the height of the sugar in the basket by screwing the leg member @Z6 into or out of the leg member d5 of spray-pipe d, as will be readily understood. Finally, by adjusting the support a for the union-pipe b toward or from the axis of the centrifugal the nozzle of spray-pipe d can bebrought nearer 1.o or farther from the inner wall of the basket andthe sugar therein, and thereby distribute the clairce over a greater or less area with greater or less force.

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

1. The combination with the basket of a centrifugal machine, of a clairce feed-pipe and a spray-pipe connected therewith to re- Volve on a horizontal axis and to be turned into and out of said basket, a valve-chamber in the connection between the two pipes, a valve-seat therein, and a valve arranged to be moved off its seat by the pressure of the liquid in the clairce feed-pipe and to be moved to its seat by the spray-pipe when turned out of said basket, substantially as set forth.

2. The combination with the feed-pipe c and spray-pipe d provided with an external screw-thread, of the union?) provided with a corresponding internal screw-thread, a coupling coupling union b to pipe oZ so as to enable the latter to turn freely, a valve-seat plug b' screwed into the opposite end of union b and coupled to feed-pipe c so` as to adapt the latter to turn freely and the cone-valve fu, substantially as and for the purpose set forth.

3. The combination with the basket of a centrifugal machine, of a, clairce feed-pipe E extending over the top of said basket beyond l its inner wall, a spray-pipe connected with said feed-pipe to revolve about a horizontal `axis,'an^d to swing into and out of the basket,

said spray-pipe of such a length as to bring its spraying-nozzle about midway of the inner vertical wall of the basket, said spraying nozzle organized to distribute the clairce over the full length of the inner wall of said basket, and a valve in the connection of the two ypipes adapted to be unseated by pressure in the feed-pipe and lo be positively seated by the spray-pipe when turned out of the basket, substantially as set forth.

4. The combination in a machine such as `described with the spray-pipe CZ, a sleeve itted in theout-let thereof, a directing-cone tted fluid-tight in said sleeve, and a spiral groove between the pipe and sleeve; of a cap secured to said outlet of pipe d, said cap hav-v ing a conical recess in its outer and inner faces concentric with the directing-cone and in communication with each other, and a chamber between said cone and capin communication with the aforesaid spiral groove.

5. The combination with the basket of a centrifugal machine, of a clairce feed-pipe extending over the top thereof beyond its inner wall and adjustable toward and from the latter, a spray-pipe connected with the inner end of said feed-pipe to be swung into and out of said basket, a valve-seat in said connection and a cut-off valve adapted to be moved from its seat by pressure on the claircepipe and to its seat by the spray-pipe when swung out of the basket, for the purpose set forth.

vIn testimony that I claim the foregoing as my invention I have signed my namein presence of two subscribing witnesses.

LUDWIG FUCHS.

Witnesses:

J osier1 RUBERCH, ALvEsTo S. HOGUE.

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