ImPROVE- MENTS IN TAPS OR COCKS
Year: 1871

page_text: LETTERS PATENT to Samuel Whitaker, of Liverpool, in the County
of Lancaster, Licensed Victualler, for the Invention of “ImPROVE-
MENTS IN TAPS OR COCKS."
Sealed the 1st December 1871, and dated the 5th June 1871.
PROVISIONAL SPECIFICATION left by the said Samuel Whitaker at
the Office of the Commissioners of Patents, with his Petition, on
the 5th June 1871.
I, SAMUEL WHITAKER, of Liverpool, in the County of Lancaster,
Licensed Victualler, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TAPS OR Cocks," to be as follows:-
My Invention relates to a tap or cock suitable for general purposes
but especially valuable for use in stock vessels from which liquids have
to be frequently withdrawn, inasmuch as it is "non-dripping" and
durable. The body may be made of any desired external form; inter-
nally in the chamber or space formed to contain the valve a surface
surrounding the exit way is trued up. A disc valve with an opening

page_text: therethrough is arranged to work against the said trued surface, the
valve being fitted on the end of a thrust guide spindle, and kept in
position by a spiral or other spring pressing on its back. The thrust
guide spindle is led through the body of the tap or cock to the outside
and provided with an operating lever or handle. By moving the lever t
or handle the spindle and valve are caused to turn and the aperture
in the valve thereby brought opposite the exit passage, and outflow
allowed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Whitaker in the Great Seal Patent Office
on the 5th December 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
WHITAKER, of Liverpool, in the County of Lancaster, Licensed
Victualler, send greeting.
.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of June, in the year of our
Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Whitaker, Her special licence,
that I, the said Samuel Whitaker, my executors, administrators, and
assigns, or such others as I, the said Samuel Whitaker, 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 “IMPROVEMENTS IN
TAPS OR COCKS," upon the condition (amongst others) that I, the said
Samuel Whitaker, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and scals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same 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.

page_text: NOW KNOW YE, that I, the said Samuel Whitaker, 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, reference being had to the accompanying
5 Sheet of illustrative Drawings and to the letters and figures marked
thereon, that is to say :—
: .
My Invention relates to a tap or cock suitable for general purposes
but specially valuable for use in stock vessels from which liquids have
to be frequently withdrawn, inasmuch as it is non-dripping and durable.
The body may be made of any desired external form; internally in the
chamber or space formed to contain the valve a surface surrounding
the exit way is trued up. A disc valve with an opening therethrough
is arranged to work against the said trued surface, the valve being fitted
on the end of a thrust guide spindle, and kept in position by a spiral
or other spring pressing on its back. The thrust guide spindle is led
through the body of the tap or cock to the outside and provided with an
operating lever or handle. By moving the lever or handle the spindle
and valve are caused to turn and the aperture in the valve thereby
brought opposite the exit passage, and outflow allowed.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 represents a side elevation of a tap, constructed in accordance
with my Invention, closed; Fig. 2, a longitudinal section of the same tap
open; Fig. 3, a transverse section at the line A, B, Fig. 1; & Fig. 4, a
front elevation. Like letters denote the same parts in all these views.
The body of the tap is here shown made in two parts, marked a and a¹
joined by male and female screw threads, the part a being preferably
formed at the delivering end as delineated; b, valve chamber with trued
face at d; e, disc valve fitted to work against d; f, spring pressing e
against d; g, thrust guide spindle with operating lever handle h and
square end to fit into e; i denotes a spiral spring which I prefer to use
although it may be dispensed with to assist in closing the tap, or to
render it self-closing. By moving the lever handle h from the position
shown in Fig. 1 to that delineated in Fig. 2 the thrust guide spindle g
and the disc valve e are caused to turn, and the opening in the latter
brought opposite the outflowing passage, and withdrawal of liquid
allowed. By moving h in the contrary direction the opening in e is
carried round opposite the solid part of d and the tap closed.

page_text: Having now described the nature of my said Invention, and parti-
cularized the same, I claim, taps or cocks constructed substantially
as set forth and delineated.
In witness whereof, I, the said Samuel Whitaker, have hereunto'
set my hand and seal, the Second day of December, in the
year of our Lord One thousand eight hundred and seventy-
one.
Witness,
J. T. KING,
Patent Agent,
Liverpool.
SAMUEL WHITAKER. (L.S.)