US130008A - Improvement in apparatus for regulating the discharge of liquids from filters - Google Patents

Description

R. BERRYMAN. Improvement in Apparatus f'or'Reguiating the Discharge of Liquids from Filters.

No. 130,008; Patentedluiy 36,1872.

FFICE.

ROBERT BERBYMAN, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN APPARATUS FOR REGULATING THE DISCHARGE 0F II IQUIDS FROM FILTERS.

Specification forming part of Letters Patent No. 130,008, dated July 30, 1872.

Specification describing certain Improvements in Apparatus for Regulating the Discharge of Liquids from Filters, invented by ROBERT BERRYMAN, of Hartford, county of Hartford, State of Connecticut.

My invention relates to an apparatus, fully described hereafter, adapted to be used in movement of the vessel.

In the drawing, the figure illustrates one form of apparatus, which may be used in connection with sugar-filters.

A is a suspended beam or lever, at the opposite ends of which are links a a, the former being connected to a closed vessel, B, and the latter' supporting a disk for receiving detachable counter-weights.b.- An inlet-pipe, 0, at the bottom of r the vessel communicates, through a flexible pipe, d, with the dischargepipe of a sugar-filter, and a pipe, 0, at the top of the vessel, communicates, through a flexible pipe, f, with a pipe, g, in which there is a cook or valve provided with a handle or arm, h. The arm h is connected, by a rod, 1', to

. the outer end of a suspended lever, O, the other end of which is connected, by a link, 8,,

to the lever A. All the bearings of the links and levers are knife-edge bearings, and the fulcrums of the levers are so arranged that a very slight'vertical movement of the vessel B will impart to the arm h sufficient motion to open or close the cock in the discharge- Sugar-filters are washed by passing water into the top of the filter, so as to force out,

through a pipe at the bottom, the heavier liquor into'a suitable vat or vessel, the flow of the water into the vessel being continued until the saccharine matter in the filtering material has been removed. When it is found that the discharge-water contains so little sugar in solution that it is not profitable to rework it, the discharge-cock is closed and the waste-cock opened, so that the water can continue to flow until the filter is thoroughly cleansed.

Frequent and very careful tests are required to ascertain the amount of sugar in the discharge-water, and considerable loss often ensues from carelessness of the attendants in opening the discharge-cocks too soon in order to expedite the cleansing operation.

The above-described apparatus, which is intended to obviate these difficulties, is used as follows: The vessel B is filled with pure water, or with a solution of sugar and water, less in strength than that which it, is desirable to retain for reworking, and such a counterbalance-weight is placed at the opposite end of. the beam as to bring the latter into a position to close the cook in the dischargepipe 9. When solutions of any greater strength than that first placed in the vessel B are passed into the same, the vessel, owing to the greater weight of its contents, will descend and open the discharge-cock, permitting the liquor to flow through the vessel and into the vat. When the liquor which passes through the vessel is of a strength equal to or less than that used in first adjusting the vessel, the

latter, owing to the decreasedweight of its contents, will arise and assume its first position, and the discharge-cock will be closed. The attendant may then open the waste-cock and complete the washing of the filter without any loss of material.

The apparatus, slightly modified to suit the peculiar circumstances of each case, may be applied to evaporating pans, retorts, stills, and other apparatus where it is desirable that the passage of a solution from one vessel to another shall be arrested on the liquor attaining a determined density.

The vessel B may be suspended from a rest on springs, or may be counter balanced in any suitable manner; and other devices than those described may be employed for transmitting the motion of the vessel to the discharge-cock valve or its equivalent.

What I claim as my invention is- A vessel, through which the liquid from a filter or other vessel or receptacle may be passed to a discharge-pipe, suspended or otherwise supported so as to rise and fall as the weight of the contents is diminished or increased, and connected to a valve or its equivalent, which, on the movement of the vessel, is operated to regulate the flow of the liquid, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ROBERT BERRYMAN.

Witnesses:

ALBERT H. NORRIS, J. L. ROBERTS.

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