AN IMPROVED VALVE OR TAP FOR LIQUIDS AND OTHER PURPOSES
Year: 1874

page_text: LETTERS PATENT to Frederick Hazeldine, of Lant Street, Borough, in
the County of Surrey, for the Invention of "AN IMPROVED VALVE OR
TAP FOR LIQUIDS AND OTHER PURPOSES."

page_text: may be round, square, or of any suitable shape, and the valve seat is
carefully planed or dressed. The valve consists of a hinged plate, the
face of the said valve being carefully planed or dressed, or covered with
india-rubber, leather, or other suitable material. The back of the valve
is provided with a slotted groove into which fits loosely the end of a
screw in such a manner that by screwing or unscrewing the valve shall
be opened or closed as required, the said screw passing through the
outer casing of the valve. When closing the valve the screw is screwed
home, thereby bringing the face thereof against its planed seat and thus
forming a perfectly tight joint.
on the 14th August 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
HAZELDINE, of Lant Street, Borough, in the County of Surrey, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of February, in the
year of our Lord One thousand eight hundred and seventy-four, in
the thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Frederick Hazeldine, Her
special licence that I, the said Frederick Hazeldine, my executors, admi-
nistrators, and assigns, or such others as I, the said Frederick Hazeldine,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVED VALVE OR TAP FOR LIQUIDS AND OTHER PURPOSES," upon the
condition (amongst others) that I, the said Frederick Hazeldine, my
executors or administrators, by an instrument in writing, under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same

page_text: was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.
NOW KNOW YE, that I, the said Frederick Hazeldine, do hereby
declare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement :—
The objects of this Invention are to secure as herein-after described
great simplicity and efficiency in valves.
The nature of the said Invention and the means whereby I effectuate
the above objects, and in what manner the same is to be performed or
carried out in practice will be most readily understood by the following
description wherein reference is made to the accompanying Drawings,
as follows:-
Figure 1, elevation of a form of my valve adapted for use as a ball
tap or valve; Figure 2, vertical section of Figure 1; Figure 3, vertical
section of a modification of Fig. 1.
In the said Drawings A is casing into which the valve B works.
This casing may be round, square, or of any suitable shape, and the
valve seat C carefully planed or dressed.
When my tap or valve is to be used as a ball tap or valve the details
which I have not shown in the Drawings (as they will be sufficiently
well understood from the Drawings and description of the ball tap or
valve) will be these:-The valve consists of a plate hinged direct to
the casing, and it is desirable that this hinge should be constructed as
hereafter particularly described, the face of the said valve being carefully
planed or dressed, or covered with india-rubber or leather, or other
suitable material. The back of the valve is provided with a rebated slot
or groove, into which fits loosely the end of a screw, so that by screwing
and unscrewing the valve shall be opened or closed as required, the said
screw passing through the outer casing of the valve. When closing the
valve the screw is screwed home, thereby bringing the face thereof
against its seat, and thus forming a perfectly tight joint.

page_text: Figures 1, 2, and 3, represent my Invention as applied to ball taps or
valves especially applicable to cisterns for constant service. In these
Figures the valve B is provided with a screw spindle a, the end of this
spindle a being similar to that before described. 6* is a groove
answering to the rebated slot or groove aforesaid. This groove 6* is
formed in the lever b which is hinged to the casing A at c, so that in
effect and action the valve B is hinged to the casing A. At the end of
the lever b the ball float d is placed. The end A* of the casing A in
Figs. 1, 2, and 3, is made as a separate piece screwed into same in order
.to facilitate taking to pieces. The screw on the spindle a works in a
corresponding thread in the orifice in said piece A* through which the
screw spindle a works.
The action of my spindle arrangements shown in Figures 1, 2, and 3,
is this: When the cistern is being filled the liquid enters at e and flows
into cistern at f, but on the rising of the water to its proper level the
ball float d with the lever b rises, and the end of the lever to which the
screw spindle is attached presses against the screwed spindle a at the
other end of which is the valve B, making it thus in action and effect a
hinged screw valve, and when the cistern is filled the valve B is pressed
home to its seat and cutting off all supply to the cistern by opening f.
In Figure 3 the action is similar to that of Figure 2, but instead of the
lever pressing against the spindle a it pulls the same with the valve B
to its seat, the head of water at opening e helping to press home the
valve.
In some cases if thought desirable the arrangements shown in
Figures 1, 2, and 3, may be varied by dispensing with the screw on the
spindle a, also dispensing with the peculiarly formed end thereof which
fits in groove on lever b, such groove being likewise dispensed with.
Having now particularly described and ascertained the nature and
object of my said Invention, and in what manner the same is to be
performed or carried out in practice, I hereby declare that I claim the
said Invention of "An Improved Valve or Tap for Liquids or other
Purposes," in which great simplicity and efficiency in valves are aimed
at, and whether my improved valve or tap be fitted as an ordinary tap or
as a ball tap, as the same is herein-before described and illustrated by the
accompanying Drawings. It being understood that the details of con-

page_text: struction "per se "and apart from the purposes of my said Invention, as
herein-before stated, are not claimed by me, and that I do not limit
myself to precisely the same details.
set
In witness whereof, I, the said Frederick Hazeldine, have hereunto
my hand and seal, this Twelfth day of August, in the year of
our Lord One thousand eight hundred and seventy-four.
FRED. HAZELDINE. (L.S.)
Witness,
T. MORGAN,
Secretary,
Inventors' Patent Right Association, Limited,
21, Cockspur Street,
S.W.