US169712A - Improvement in elevators for saccharine liquids - Google Patents

Description

E. P. LAREE.

ELEVATORS FOR SACCHARINE LIQUIDS.

Patented Nov. 9, 1875.

INVENTOR.

WITNESSES:

62 6: f M ii;

ATTORNEY.

MPETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D. C.

NIT D TATES EUGENE P. LA E O PHILADELPHIA, PENNsYLvANIA, ASSIGNOR OF HALF His nrenr'ro EAYMoND CAPE,

or SAME PLACE,

IMPROVEMENT IN ELEVATORS FOR SACCHARINE LIQUIDS.

Specification forming part of Letters Patent No. 169,712, dated November 9, 1875; application filed October 14, 1575.

To all whom it may concern:

Be it known that I, EUGENE PROSPER LA- REE, of the city and county of Philadelphia, in the State of Pennsylvania, have. invented a. certain new and useful Improvement in Elevators for saccharine Liquids, of which the following is a specification:

The object of my invention is to provide a simple and convenient apparatus for elevating saccharine liquids from one defecating pan or boiler to another, so as to obviate the slow and injurious operation of ladling, and thereby to economize time and labor, and improve the quality of the clarified liquid; to which end my improvement consists in the combination of a screw-conveyer and an inclosing casing with a steam-engine, which rotates the screw-conveyer, and an ejector, operated by the exhaust-steam of the engine, as hereinafter more fully set forth.

In the accompanying drawings, Figure l is a vertical longitudinal central section of an elevator for saccharine liquids embodying my improvement; Fig. 2, a vertical transverse section of the same at the center of the steamsupply pipe; Fig. 3, an end view of the same; and Fig. 4 a view in elevation of the delivery-nozzle.

To carry out the object of my invention I provide a screw-conveyor, A, which is formed upon or secured to a hollow shaft, A, and is mounted in hearings in a casing, B, within which it is titted neatly, so as to revolve without undue friction. A receiving-nozzle, B, is formed upon the lower portion of the casing, and a delivery-nozzle, B is secured to one end thereof, the other end being closed by a plate, 13. The diameter of the delivery-nozzle is reduced gradually toward its outer end, upon which a flange is formed for the attachment of a discharge'pipe. A hub, N, is formed at the center of the inner end of the deliverynozzle to serve as a bearing for the hollow shaft, A, and is united to the nozzle by arms I), so as to admit of the passage of the saccharine liquid to the discharge iiipe.

The screw-conveyer extends from the de livery-nozzle B to a transverse partition, B which divides the casing B into two compartments, the larger of which serves for the reception of the screw-conveyer, and the smaller to contain a rotary steam-engine, secured noon the hollow shaft A,which passes through a bearing in the partition B In this instance the engine shown is of very simple construction, consisting of a series of curved arms, 0, which are united to a hub, 0 between two disks, C A steam-supply pipe, 0, leads into the engine-compartment and an exhaustopening, 0, therein, furnished with a hinged valve, 0 which opens outward, communicates with an exhaust passage, 0 terminating at an opening, 0, in the end plate B of the casing. The opening 0 isimmediately opposite the open end of the hollow shaft A, so that the exhaust steam from the engine passes thereto and escapes into the delivery-nozzle of the casing, through a contracted nozzle on the end of the shaft. The arrangement of the shaft and delivery-nozzle, as above, serves to form an ejector, which is operated by the exhaust steam. The office of the valve 0 is to prevent any flow of the saccharine liquid into the engine-compartment.

In the operation of the apparatus, which rests by its feet 13 upon the bottom of the defecator or boiling pan, the rotation of the engine imparts a corresponding movement to the screw-conveyer, which elevates the liquid from the pan into the casing and discharges it into the delivery-nozzle and discharge-pipe. The exhaust steam escaping from the contracted nozzle of the shaft tends to form a vacuum in the casing, and thereby correspondingly facilitates the action of the screwconveyer.

By the use of my apparatus I am enabled to discharge the contents of a large pan with great celerity, and the liquid being discharged in a solid stream, the injurious efl'ects of exposing it in small portions to the atmosphere (as in ladling) are avoided.

It is obvious that the form of engine employed is innnaterial, as it may be varied without departing from the spirit, of my invention; and I do not, therefore, confine myself to any specific construction thereof.

I claim as my invention, and desire to secure by Letters Patent 1. The combination of a screw-conveyer, an

PATENT QFFIG E- ONE- 2 I meme inclosing-easingmid anejeotor, substantially .3; The combination of the easing, divided asset forth. into two compartments, the exhaust-passage, 2. The combination of aiscrew-conveyer and and the exhaust-valve, substantially as set a rotary engine, both secured upon a hollow forth.

shaft, which receives the exhaust steam at EUGENE P. LAREE. one end agd discharges it from they other, into Witnesses:

easing inclosin'g the conveyer and engine, J. SNOWDEN BELL, substantiallyasset forth. RAYMOND GAPE;

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