Year: 1887

page_text: Date of Application, 13th Oct., 1887
Complete Specification Left, 13th July, 1888
Complete Specification Accepted, 17th Aug., 1888
I HENRY COLE WILLMOTT of 23 Leighton Terrace; Kentish Town, London, N.W.
Commercial Traveller, do hereby declare the nature of this invention to be as
follows, reference being also had to the accompanying sheets of drawings, in which
Figure 1 is a plan of the device according to my invention, Figure 2 is an elevation
of the same with the plug removed, and Figures 3, 4 and 5 are details to be herein-
after referred to :-
My Invention has reference to that class of taps or cocks known as compound taps
or cocks, employed for drawing off two or more dissimilar fluids, and allowing of the
mixture and discharge of the same in predetermined proportions, in and through the
outlet of said taps or cocks, and which improvements will be found especially suitable
for the purposes referred to in the Specification of my Invention dated 3rd August
1887 No. 10701.
In accordance with my Invention, I form the body of the improved tap or cock A
as shewn in the accompanying drawings, so that the main orifice is parallel with and
opposite to the inlet stem B-At right angles, or at any radial angle to the inlet stem,
I form upon the body of the tap or cock, a union or branch C provided with a
suitable screw thread for attachment to a pipe or the like. A tapered plug D, shewn
detached in Figure 3, having two ways or passages E and F of different areas, is
fitted to the tap or cock in the ordinary manner, the passage E in the plug corre-
sponding to the horizontal inlet and outlet orifice is of rectangular form, that within
the plug, corresponding to the radial union or branch before referred to, is also rect-
angular, the ratio of the area of the different passages E and F, being in direct
proportion to the predetermined degree of admixture of the fluids passing there-
through. The circumferential length of the orifices should be equal, the difference of
the area of said orifices being made in width only. Instead however of using the
tapered plug above mentioned, a packed plug may be substituted therefor with equal
advantage,

page_text: In order to prevent the fluids from mingling within the body of the tap or cock,
the radial orifice within the plug is formed with a bend, so that the fluid passing
through it, mixes with the other fluid within the spout of said tap or cock, and
is thereby prevented from flowing back into the horizontal inlet orifice.
JAMES STEVENSON,
Gray's Inn Chambers,
20, High Holborn, London, W.C.,
Agent for Applicant.
I, HENRY COLE WILLMOTT of 23 Leighton Terrace, Kentish Town, London N.W.
Commercial Traveller, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
My invention has reference to that class of taps or cocks known as Compound taps
or cocks, employed for drawing off two or more dissimilar fluids, and allowing of
the mixture and discharge of same in predetermined porportions in, and through the
outlet of said taps or cocks, and which improvements will be found especially
suitable for the purposes referred to in the Specification of my invention No. 10701
dated 3rd August 1887.
Referring to the accompanying sheet of drawings, Figure 1 represents a plan of
the improved tap or cock according to my invention. Figure 2 is an elevation of
same with the plug removed; and Figures 3. 4. and 5 are details of the plug, to be
hereinafter referred to.
In carrying out my invention I form the body of the improved tap or cock A
as shown in the accompanying drawings, so that the main orifice is parallel with,
and opposite to the inlet stem B. At right angles or at any radial angle to the
inlet stem B aforesaid, I form upon the body of the tap or cock A a short branch (
provided with a union a, by means of which a pipe or the like may be attached
thereto. A tapered or packed plug D-shown detached in Figure 3-having two
ways or passages E and F of different areas, is fitted to the tap or cock in the
ordinary manner. The passage E in the plug corresponding to the horizontal inlet
and outlet apertures B and G is of rectangular form, as is also the way or passage F

page_text: corresponding to the radial branch C above referred to; the areas of the two ways or
passages E and F being in direct proportion to the predetermined degree of admixture
of the fluids passing therethrough.
The circumferential length of the ways or passages E and F should be equal, the
difference of areas being due to the widths thereof.
In order to prevent the fluids from mingling within the body of the tap or cock A,
the two apertures are separated by a partition or wall f, so that the fluid passing
through the aperture F, mixes with the other fluid within the spout G of said
tap or cock A, and is thereby prevented from flowing back into the horizontal inlet
orifice.
Instead of the aperture F being rectangular as aforesaid, I may make it of any
other desired shape to suit different circumstances; one form of said aperture is
shewn in Figure 3 and by the diagram Figure 6, in which it will be seen that it
is formed narrower towards the upper end, and inclined somewhat from the vertical
plane.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The improved compound tap or cock for drawing off two dissimilar fluids, and
allowing of the mixture and discharge of same therefrom in predetermined proportions
substantially as herein set forth.