AN IMPROVED DEVICE FOR CLEARING THE VENTS OR DISCHARGE PIPES OF WASH BASINS AND OTHER SIMILAR RECEPTACLES
Year: 1875

page_text: LETTERS PATENT to Alexander Melville Clark, of 53, Chancery Lane,
in the County of Middlesex, Patent Agent, for the Invention of
"AN IMPROVED DEVICE FOR CLEARING THE VENTS OR DISCHARGE PIPES OF
WASH BASINS AND OTHER SIMILAR RECEPTACLES." -A Communication
from abroad by John Savage Hawley, of Stapleton, in the County
of Richmond, and State of New York, United States of America.
COMPLETE SPECIFICATION filed by the said Alexander Melville
Clark at the Office of the Commissioners of Patents, with his
Petition and Declaration, on the 31st August 1875, pursuant to
the 9th Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
MELVILLE CLARK, of 53, Chancery Lane, in the County of Middlesex,
Patent Agent, send greeting.

page_text: OTHER SIMILAR RECEPTACLES," and have petitioned Her Majesty to grant
unto me, my executors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn Declaration that it has
been communicated to me from abroad by John Savage Hawley, of
Stapleton, in the County of Richmond, and State of New York, United
States of America.
NOW KNOW YE, that I, the said Alexander Melville Clark, do
hereby declare that the following Complete Specification, under my hand
and seal, fully describes and ascertains the nature of the said In-
vention, and in what manner the same is to be performed, in and by
the following statement, reference being had to the accompanying Sheet
of Drawings, and to the letters marked thereon, that is to say :-
This Invention has for its object to furnish a simple, convenient, and
inexpensivo device for clearing the vents or discharge pipes of wash
basins, stationary wash tubs, or other receptacles, should they become
accidentally stopped.
The Invention consists in an improved vent clearer formed by
attaching a rubber cup to a handle, as hercin-after fully described.
The annexed Drawing shows a longitudinal section of the improved
vent clearer.
A is a handle, upon the lower end of which is formed a disc or enlarge-
ment a'. To the disc a¹ is attached a rubber cup B by a screw and
washer, or by any other convenient means. The cup B may be made
in the form of half a hollow sphere, as shown in the Figure; or the cup
may be made cylindrical in form, or of any other desired shape.
In using the device a small quantity of water is allowed to flow into
the basin or tub, so as to cover the discharge orifice. The cup B is
then placed in the basin or tub around the discharge orifice, and the
handle A is forced downwards suddenly so as to force the water beneath
the cup B into the discharge pipe with a sudden impulse, which dislodges a
the obstruction and allows it to be carried off by the outflowing water.
This device is simple and inexpensive, can be used by any one, and will
enable the discharge pipes to be cleared without the trouble, annoyance,
and expense of calling in a plumber every time said pipe becomes
clopeed

page_text: Having described the nature of the Invention, and the manner
of performing the same, I declare that what I claim as new and desire
to secure by Letters Patent is, an improved vent clearer, formed by
attaching a rubber cup B to a handle A, substantially as herein shown
and described.
In witness whereof, I, the said Alexander Melville Clark, have
hereunto set my hand and seal, this Thirty-first day of August,
in the year of our Lord One thousand eight hundred and seventy-
five.