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PATENTED AUG lb 1871 AM PHOTOLITHOGRAPHIC CO A): (OSBOPNeS PROCESS)
UIVTITED STATES PATENT OFFICE.
COLLINS KNOWLES OF BOSTON MASSACHUSETTS.
IMPROVEMENT IN WASH-BOWLS.
Specification forming part of Letters Patent No. dated August 15 1871.
To all whom it may concern:
Be it known that I COLLINS KNOWLES Of Boston in the county of Suffolk and State of Massachusetts have made a new and useful invention having reference to Wash-Bowls or Sinks; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawing of which
Figure 1 is a front elevation and Fig. 2 a vertical section of a wash-bowl its discharging-conduit valves and valve-operating mechanism as applied together and a shelf or slab and provided with my invention. Fig. 3 is a horizontal section taken through the forked lever to be hereinafter described.
The object of my invention is to enable a per-son at pleasure to either close or open the vent of the bowl.
In the drawing the said bowl is shown at A as applied to a marble slab B in the usual manner the mouth of the bowl opening through the slab. At the lower end of the educt or vent-pipe a of the bowl is a strainer b. A tubular valve case C is screwed on the vent-pipe a there being within and across such case a partition d through which concentrically with the case is a circular hole e. The top of the said partition is a seat for the upper or disk-valve D fixed on the upper end of a stem or rod f From the opening e an ajutage or short pipe g extends downward into the case and below the partition and into and fits to the bore of a short tube E arranged to fit to and slide vertically within the bore of the case C or that part of it which is be-low the partition. The tube E is a cylindrical valve open at each end its seat being the lower side of the partition. The said tube E also covers two slots h made in opposite sides of the valve-case to receive the screws i by which the prongs k of a forked lever F are pivoted to the tubular valve E. Two bars 1 m extend diametrically across the tubular valve E and serve to support the stein of the disk-valve which goes down through them has a shoulder n to rest on the upper of them and is held in place by a nut o screwed upon its lower part and against the lower bar. The forked lever F arranged as shown has its fulcrum p in an arm q extended clown from the slab and is pivoted to a sleeve
Cr placed concentrically upon the lower part of a vertical shaft H arranged in a bearing I fixed to the slab. The said shaft H at its upper end is provided with a milled head r which projects both above and below the slab. A screw or stud s is extended from the shaft or spindle H into an inclined slot t formed in the sleeve as shown.
By revolving the shaft in one direction the sleeve will be raised and it will be moved down-ward when the shaft is turned the opposite way such movements serving to effect through the forked lever vertical movements of the disk-valve and the tubular valve. When the tubular valve is up to its seat the disk-valve will be off its seat to enable water to escape from the bowl provided there may be any therein. The tubular valve will prevent the discharged water from escaping laterally through the openings or slots of the valve-case the ajutage aiding in directing such water away from the upper end of the tubular valve and the seat thereof.
A coupling K for a waste-pipe is screwed on the lower end of the valve-case.
One object I have had in view in making my invention has been to get rid of the plug and its lifting-chain as generally employed in stationary basins wash-bowls or sinks such plug being for estopping the vent of the bowl or sink.
I claim
1. The combination and arrangement of the disk and tubular valves D E with the slotted valve-case C and its perforated partition d the valves being connected as described.
2. In combination therewith the forked lever F the oblique-slotted sleeve 0- and the spindle or shaft H all constructed and applied together in manner and so as to operate substantially as explained.
3. The combination of the valve apparatus substantially as described with a wash-bowl or vessel and the vent thereof; as set forth.
4. The arrangement and combination of the ajutage g with the disk and tubular valves and the slotted valve-case and its partition all combined and arranged in manner as specified.
COLLINS KNOWLES. Witnesses :
R. H. EDDY
J. R. SNow.
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