Improvements in Thermostats for Incubators and 'the like.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Thermostats for Incubators and 'the like.
JAMES RIDDELL BROOKS of 59 Kingston Road, Wimbledon, Electrical
Engineer and ERNEST HENRY WILLIAM TRIPE of 8 Oak Villas, Merton
Park, Surrey Printer do hereby declare the nature of this invention to be as
follows:-
The regulator consists at its base of a small reservoir (A) attached to which is
a brass tube (B) which is intended to pass through the water tank of incubator,
chamber or vessel (shewn in C) at the top of the tube is affixed a brass receptacle (F)
sealed at its top by a brass plate; soldered to this brass plate is a thin flexible
plate (E) E&F together forming an expanding chamber; at the back of this
chamber there are fixed two pivots (G) which support the base (D) of the damper
rod (H) which rests over the top of the chimney of the lamp (I). For fixing the
temperature of the incubator, chamber or vessel, a leaden weight (J) is attached
to the rod (H) and can. be moved either to the left or right, by which means the
pressure on the expanding.chamber can be increased or decreased.
The mechanism of our invention thus constructed is as follows:-The cone (A)
being charged with chemicals, such as spirits of wine, ether, bi-sulphide of carbon,
gasoline, or other vaporizable chemical, which boils at a given temperature; the
said chemicals being absorbed by a porous substance such as ordinary blotting
paper or other suitable absorbent material. The chemicals referred to cominence
to vaporize at a temperature of .about 95 degrees Fahrenheit 'then rising up 'the
tube (B) to the expanding chamber (E F) causes 'the 'flexible plate (E) to expand
and by so doing causes the rod (H) to rise, thus lifting up the damper (K) which
allows any excess of heat to escape, thereby ensuring the temperature of the
incubator, chamber or vessel, remaining at the required degree of heat. In our
invention the expanding chamber.is fixed on the exterior of the incubator, chamber
or vessel, thus obviating the difficulties encountered, when the same is placed in
the interior, in which event, the entrance of cold air into the chamber which
requires to be at a certain heat, acts as an additional force in raising the damper (K)
causing the temperature to be lowered, instead of being retained 'at the required
degree. Our invention being placed outside the incubator, vessel, or other
chamber is not susceptible to the influences of the additional force of cold air
referred to, as directly the vapour contained in the expanding chamber comes into
contact with the cold atmosphere, it condenses and in this condition flows back into
the reservoir (A) thus causing the damper (K) to fall and thereby keeping 'the
temperature in the incubator, chamber or vessel at the required degree of heat.
We claim for our invention, that it has a double acting capacity, 'the temperature
of the chamber requiring to be at a certain heat, being regulated both from the
interior and the exterior of the incubator, chamber or vessel.
Dated this. 5th day of October 1896.
JAMES RIDDELL BROOKS.
ERNEST H. W. TRIPE.

page_text: JAMES RIDDELL BROOKS of 59 Kingston Road, Wimbledon, Surrey Electrical
Engineer and ERNEST HENRY WILLIAM TRIPE of 8 Oak Villas, Merton Park,
Surrey Printer, 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 :-
The invention is illustrated by drawings accompanying the Provisional
Specification.
The thermostat consists at its base of a small reservoir (A) attached to which
is a brass tube (B) which is intended to pass through the water tank of incubator
chamber or vessel (shown in C); at the top of the tube is affixed a brass
receptacle (F) sealed at its top by a brass plate; soldered to this brass plate is
thin flexible plate (E) E & F together forming an expanding chamber; at the
back of this chamber there are fixed two pivots (G) which support the base (D)
of the damper rod (H) which rests over the top of the chimney of the lamp (1).
For fixing the temperature of the incubator, chamber or vessel, a leaden weight (J)
is attached to the rod (H) and can be moved either to the left or right, by
which means the pressure on the expanding chamber can be increased or
decreased..
The
The mechanism of our invention thus constructed is as follows:-The
cone (A) being charged with chemicals, such as spirits of wine, ether, bi-
sulphide of carbon, gasoline, or other vaporizable chemical, which boils at a
given temperature; the said chemicals being absorbed by a porous substance
such as ordinary blotting paper or other suitable absorbent material.
chemicals referred to commence to vaporize at a temperature of about 95 degrees
Fahrenheit, then rising up the tube (B) to the expanding chamber (EF)
causes the flexible plate (E) to expand and by so doing causes the rod (H) to rise,
thus lifting up the damper (K) which allows any excess of heat to escape, thereby
ensuring the temperature of the incubator, chamber or vessel, remaining at the
required degree of heat. In our invention the expanding chamber is fixed on the
exterior of the incubator, chamber or vessel, thus obviating the difficulties.
encountered, when the same is placed in the interior, in which event the entrance
of cold air into the chamber which requires to be at a certain heat, acts as an
additional force in raising the damper (K) causing the temperature to be lowered,
instead of being retained at the required degree. Our invention being placed
outside the incubator, vessel, or other chamber, is not susceptible to the influences
of the additional force of cold air referred to, as directly the vapor contained in
the expanding chamber comes into contact with the cold atmosphere, it condenses
and in this condition flows back into the reservoir (A) thus causing the damper (K)
to fall and thereby keeping the temperature in the incubator, chamber or vessel at
the required degree of heat.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
(1.) The general arrangement, construction and combination of parts forming
our improvement in thermostats for incubators and the like, all acting and operating
substantially as and for the purposes hereinbefore described and shown.
(2) In incubators and the like, the temperature regulating device consisting of

page_text: reservoir (A) containing gasoline, bi-sulphide of carbon, or other vaporizable
chemicals, brass tube (B) and expanding chamber (E. F) all constructed and
operating substantially as hereinbefore described and shown.
Dated this 6th day of January 1897.
JAMES RIDDELL BROOKS.
ERNEST HENRY WILLIAM TRIPE.