Improvements in Electric Temperature Regulators.
Year: 1885

page_text: Improvements in Electric Temperature Regulators.
I, WILLIAM PHILLIPS THOMPSON, Fel. Inst. P.A. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, in the County of Lancaster, and
323 High Holborn, in the County of Middlesex, Civil Engineer do hereby declare
the nature of this invention (a communication from abroad by Charles Augustus
Tucker of Islip in the County of Suffolk and State of New York, United States
of America, inventor and manufacturer of Electrical Instruments) and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The object of this invention is a new and useful device for changing the air in
rooms, balls, churches, and other structures, by providing a sheltered chamber open
to the outer atmosphere, and a passage between it and the place in which it is
desired to regulate the temperature, and means to open and close such passage
automatically by the employment of an electric current.
Figure 1 is a front view of the improved temperature regulator.
Figure 2 is a cross sectional elevation of the same through the line x, x, of
Figure 1.
Figure 3 is a plan view of a portion of the same, the top of the frame removed,
to show the parts clearly.
Figure 4 is a detail view of a part of the movable slat b, and its bearing.
Figure 5 is a front view of an arrangement of thermometers adapted to be used.
with the regulator.
Figure 6 is a front view of a relay which may be used with the Temperature*
Regulator.
Similar letters of reference indicate like parts in all the drawings.
A is a frame of suitable size to fit into the opening designed, having outwardly
projecting portions y, z, and roof B, which is made preferably of glass, to form the
outer chamber D, which is enclosed on all sides but open at the bottom. This
frame A is usually made to fit into a part of a window or other suitable opening,
[Price 8d.]

page_text: and has the roof B far enough from it to leave the outer chamber D, as large as
may be desired.
In the frame are arranged vertical stationary slats, a, a, permanently fixed in
position diagonally across the frame, as shown clearly in Figure 3 and leaving open
spaces between them. The drawings show the slats a, a, made of glass, which is
the material preferred for use when it is desired to admit the light although other
materials may he used. Into the open spaces between the fixed slats a, a, are
fitted movable slats b, b, which are pivoted between the fixed slats, so that they
may be turned straight across the frame A to open the spaces between the fixed
slats, as is indicated by the dotted lines in Figure 3, and these slats b, b, are of
such size that when they are turned diagonally across the frame they will close
the spaces between the slats a, a. The object of having these pivoted slats stand
straight across the frame when the spaces are to be open, is to have them present
the least surface to the currents of air passing through the openings so that they
may not be turned thereby.
These pivoted slats b, b, are preferably made of metal, which is the material
indicated in the drawing, and thin brass plates are used which have been found to
produce good results. Into the top and bottom of these slats are fitted little
pintles f, preferably made of steel, and into the upper and lower parts of the frame
little metal bearings e are driven for the pintles, preferably made of brass, as is
shown in Figure 4, by which arrangement the pivotal movements can be made
with very little friction. To the tops of the slats b, b, arms d, d, are attached,
which pivot them all to the horizontal rod c, and this rod c is pivotally connected
at one end to the compound lever g, h, by means of the arm cl; and to a part of
the frame A a spring W is attached to draw the rod c in one direction to hold the
slats b, b, diagonally across the frame A, and close the openings between the fixed
slats.
To the arm of the compound lever an armature i is attached, near which is
located the electro-magnet E, in such position that when the armature is attracted
to the magnet the lever will draw the rod c far enough to bring the slats b, b,
straight across the frame. One wire k runs from the magnet E to the battery 1,
and a wire runs from the battery to the bulb of a thermometer; the other wire j
runs from the magnet to the tube of the thermometer, where it is hermetically
sealed at any desired degree of temperature indicated.
In case only one standard of temperature is provided for, only one thermometer
need be employed arranged as above described. But if several standards of
temperature are to be provided for, more 'than one thermometer is employed
arranged as shown in Figure 5. C is a frame on which two thermometers are
placed side by side, each of them having a wire preferably platinum, fused into
the tubes m, m, at a determined degree of temperature, in the drawing shown at 68
and 72 respectively; these tube wires meet at t, and are carried to a binding post
ass, where they are brought into electrical connection with the wire j. The bulb
wires o, o, are independently brought to the switch buttons p, p, which buttons are
placed in contact distance radially, of the switch q, and this switch is electrically
connected through the binding post. r, wire and battery 1, and wire k to the
magnet E, and thereby an electric circuit may be formed through either ther-
mometer. Two thermometers only are shown, but more may be arranged on the
frame C and employed in the same manner, where it is likely that greater variations
of temperature may be required at different times, as in sick rooms, or hospitals,
. etcetera. The advantage of using a separate thermometer for each standard of
temperature is, that each thermometer can then be made air tight, and the mercury
retained in vacuum, by which oxidation is retarded, and the thermometer will last
a long time.
To still further preserve the mercury in the thermometer, a relay may be
employed as shown in Figure 6, instead of placing the thermometer within the
circuit of the main battery. In the relay u represents the magnets, w³ an armature
carrying a contact point y' arranged in contact distance of the fixed point v¹. One

page_text: wire L of the relay is carried to the thermometer binding post r, the other wire of
the relay, through a small battery H is carried to the other post s; when the
mercury rises to the designated point, the electrical circuit is completed through
the wires L, L' and battery H, the magnets u are excited, attracting the armature w¹,
bringing together the points and y¹ which form electrical connection through
the main battery 1 and magnets E. By employing such a relay a very small relay
battery can be used, and only a slight spark through the mercury will be necessary
to operate the device, thus preserving the thermometers for a long time.
The thermometer frame C is adjusted on that level in the room at which it is
desired to have the temperature kept even, for example, on the level of a bed
etcetera.
The operation is as follows: When the temperature rises in the room to the
maximum point desired, the mercury in the thermometer tube rises, and when it
touches the tube wire it closes the electrical circuit, whereby the magnet E becomes
excited and attracts the armature i; which operates the levers g, h, drawing the
rod c, and holding the slats b, b, in position straight across the frame A, unclosing
the openings between the fixed slats a, a, and allowing the cold air to pass into
the room and the warm air to pass off through the outer chamber D, until the
temperature has been reduced, when the mercury again falls, breaking the circuit,
and the spring W draws the rod c and closes the openings.
с
The air chamber D not only protects the slats and passage from rain and snow,
but the air confined therein is also tempered before entering, and makes but little
disturbance on coming into the room; and by the arrangement of slats described
the friction in operation is so slight that very little battery power is required to
operate the device.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is
1. A temperature regulator consisting of an outer chamber D, frame A, slats a, a,
and b, b, the rod c, and its connections, in combination with a suitable electric
device for operating the same, arranged substantially as described and shown.
2. A temperature regulator, consisting of a frame A, chamber D, fixed slats a, a,
movable slats b, b, rod c, and its connections, in combination with a magnet E, and
battery 1, electrically connected with a suitable thermometer, substantially as
described and shown.
3. A temperature regulator consisting of a chamber D, frame. A, having fixed
slats a, a, movable slats b, b, and rod c, and its connections, in combination with
two or more thermometers connected from their tubes electrically through the
magnet E, and battery l, with the switch q, the bulb of each thermometer connected
independently with a button as p, substantially as described and shown.
•
4. A temperature regulator, consisting of a frame A, chamber D, fixed slats a, a,
movable slats b, b, rod c and its connections, in combination with a magnet E and
battery, electrically connected with a thermometer through a suitable relay,
substantially as described.