IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF APPARATUS FOR ASCERTAINING THE TEMPERATURE WITHIN CLOSED OR OTHER VESSELS PROVISIONAL SPECIFICATION
Year: 1883

page_text: LETTERS PATENT to Henry Stopes of Southwark Street in the County of
Surrey, Engineer and William Crockford of Peters Street Mile End, in the
County of Middlesex, Brewer for an Invention of IMPROVEMENTS IN THE
CONSTRUCTION AND ARRANGEMENT OF APPARATUS FOR ASCERTAINING THE
TEMPERATURE WITHIN CLOSED OR OTHER VESSELS
PROVISIONAL SPECIFICATION left by the said Henry Stopes and William
Crockford at the Office of the Commissioners of Patents on the 22nd March
1883.
HENRY STOPES of Southwark Street in the County of Surrey, Engineer and
WILLIAM CROCKFORD of Peters Street, Mile End in the County of Middlesex,
Brewer, "IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF
APPARATUS FOR ASCERTAINING THE TEMPERATURE WITHIN CLOSED OR OTHER
VESSELS
"
"
This invention has for object "improvements in the construction and arrange-
ment of apparatus for ascertaining the temperature within closed or other vessels
and relates to so constructing and arranging such apparatus that the thermometric
instrument can. be inserted or withdrawn from a closed vessel or laterally below
the surface of liquid or semi liquid contents of an open vessel or mash tun without
allowing any fluid to escape from or enter such vessel notwithstanding any
difference in pressure (in the case of a closed vessel) between the contents of the
vessel and the external atmosphere.
For this purpose we use a thermometer provided with an external metal case so
constructed as to expose a portion of the thermometer near the lower end and also
in proximity to the scale.
Between these two parts the thermometer is packed air tight within its enclosing
case so that fluid may not pass between them-
In the vessel the temperature of whose contents is to be ascertained is formed an
opening furnished with a union joint or screw connection; to this is affixed an

page_text: ordinary cock or sliding valve of such a construction that when open, it shall. have
a good clear way sufficiently large to admit the encased thermometer, on the outer
end of this cock or valve is mounted a somewhat lengthened neck piece (with its
axis coinciding with that of the cock or valve before mentioned) and terminating
in a gland, stuffing box or similar contrivance capable of receiving, air-tight, the
smooth tube forming the case of the thermometer.
The application is as follows:-
The cock or valve being shut the lower end of the thermometer case is soundly
packed in the stuffing box, the cock or valve is then opened and the thermometer
thrust into the vessel.
When it is required to withdraw the thermometer it is drawn outward through
the stuffing-box until it is beyond the valve or cock which is then closed and the
thermometer can after closing of the valve be removed from the stuffing box if
desired.
Thermometers packed within enclosing cases as described may be used also in
other ways.
In some cases the vessel the temperature of whose contents is to be ascertained
may have formed in it a hole wherein is fixed a thimble or pocket of material that
is a good conductor of heat which protrudes into the contents of the vessel, the
thermometer being inserted in this thimble.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Stopes and William Crockford in the Great Seal Patent
Office on the 11th September 1883.
HENRY STOPES, of Southwark Street, in the County of Surrey, Engineer, and
WILLIAM CROCKFORD, of Peter's Street, Mile End, in the County of Middlesex,
Brewer, IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF APPARATUS
FOR ASCERTAINING THE TEMPERATURE WITHIN CLOSED OR OTHER VESSELS
This invention has for object improvements in the construction and arrangement
of apparatus for ascertaining the temperature within closed or other vessels, and
relates to so constructing and arranging such apparatus that the thermometric
instrument can be inserted or withdrawn from a closed vessel or laterally below
the surface of liquid or semi-liquid contents of an open vessel or mash tun without
allowing any fluid to escape from or enter such vessel notwithstanding any
difference in pressure (in the case of a closed vessel) between the contents of the
vessel and the external atmosphere.
For this purpose we use a thermometer provided with an external metal case so
constructed as to expose a portion of the thermometer near the lower end and also
in proximity to the scale.
Between these two parts the thermometer is packed air tight within its enclosing
case so that fluid may not pass between them.
In the vessel the temperature of whose contents is to be ascertained is formed
an opening furnished with a union joint or screw connection,-to this is affixed an
ordinary cock or sliding valve of such a construction that when open it shall have
a good clear way sufficiently large to admit the encased thermometer; on the outer
end of this cock or valve is mounted a somewhat lengthened neck piece (with its
axis coinciding with that of the cock or valve before mentioned) and terminating
in a gland stuffing box or similar contrivance capable of receiving air-tight, the
smooth tube forming the case of the thermometer.
Fig 1 of the drawings illustrates in vertical section the application of our
invention to a cask or vessel and shews the upper part of the thermometric
instrument fixed in position for ascertaining the temperature of the contents of
such vessel.
Fig 2 is a horizontal section of the cock or valve, and
Fig 3 is an elevation of the lower end of the case enclosing the thermometer.
a is a portion of the upper part of the vessel the temperature of whose contents
is required to be ascertained. The thermometer is contained in an enclosing metal
case or tube b, so constructed as to expose a portion of the thermometer at or near
its lower end as at c and also in proximity to the scale as at d, between which
parts the thermometer is packed air tight within its enclosing case b by filling the
space intervening between the thermometer and the metal or other casing with
india rubber tubing or other substance and in some cases also with a stuffing
gland is a union joint or screw connection extending through the top of the
vessel (a) and having affixed to it an ordinary cock or sliding valve f constructed
with a passage g sufficiently large when open to give a good clear way, for the
insertion into the vessel of the encased therinometer. The cock g is formed with
a lengthened neck piece terminating in a gland or stuffing box i for receiving
packing to hold air tight the smooth tube b forming the case of the thermometer.
The application is as follows:-
The cock or valve f being shut the lower end of the thermometer case b is
soundly packed in the stuffing box ȧ the cock or valve f is then opened and the
thermometer thrust into the vessel a.

page_text: When it is required to withdraw the thermometer from the vessel a it is drawn
outward through the stuffing box i until it is beyond the valve or cock f which is
then closed, after which the thermometer can be removed from the stuffing box i if
desired.
Fig 4 illustrates the application of our invention to the side of a vessel or mash
tun below the surface of the liquid or semi liquid contents so that the thermometer
can be inserted or withdrawn in the manner described with reference to Fig 1, but
laterally so as not to allow fluid to escape.
Thermometers packed within enclosing cases as described may be used also in
other ways.
In Fig 5 is shewn a modification in which the vessel a (the temperature of whose
contents is required to be ascertained) has formed in it a hole wherein is fixed a
thimble or pocket k of material that is a good conductor of heat which protrudes
into the contents of the vessel the thermometer 7 being inserted in the said thimble
or pocket k.
Having described the nature of our said invention and the manner of carrying
it into practical effect we would have it understood that what we consider to be
novel and original and therefore claim as secured to us under the Letters Patent
first herein before in part recited is,―
1. The use for ascertaining the temperature within closed or other vessels of
apparatus constructed arranged and operating as hereinabove described with
reference to and illustrated by the drawings Figs 1 to 3 and Fig 4.
2. The use for ascertaining the temperature within closed vessels of a thermo-
meter provided with an external metal case so constructed as to expose a portion
of the thermometer near the lower end and also in proximity to the scale the
thermometer being between these two parts packed air tight within the enclosing
case so that fluid may not pass between the thermometer and the case substantially
as described.
In witness whereof I the said Henry Stopes have hereunto set my hand and
seal this eleventh day of September in the year of Our Lord one thousand eight
hundred and eighty three.