Improvements in Temperature Regulators.
Year: 1892

page_text: COMPLETE SPECIFICATION.
[Communicated from abroad by THE CONSOLIDATED CAR-HEATING COMPANY,
of Wheeling, West Virginia, United States of America.]
Improvements in Temperature Regulators.
I, HENRY HARRIS LAKE of the firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings in the County of Middlesex, 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:-
This invention relates to new and useful improvements in temperature regulators,
and the invention consists in the peculiar construction of the actuating mechanism
between the thermostat and the valve or damper to be operated.
The invention particularly consists in the means employed for transferring the
expansive force of a thermic cell into a rotary motion, and in utilizing that motion
to actuate the valve or damper, and
Further in the peculiar construction, arrangement and combination of the various
parts, all as more fully hereinafter described.
In the drawings,
Fig. 1 is a vertical, central section through my improved device.
Fig. 2 is a front elevation thereof.
Fig. 3 is a cross section on line x in Fig. 1.
Fig. 4 is a side elevation of the valve and connections.
Fig. 5 is a section through the shaft coupling.
A is the frame, B is a lever pivoted at the top and extending vertically to near
the bottom.
This frame is provided with a central aperture in which the hub C is
adjustably engaged, preferably by means of a screw threaded engagement. This
hub carries on its outer face the expansion chambers or thermic cells D, of which
there may be one or more.
These cells are connected by means of the stem E and neck F, centrally with the
lever B, preferably by forming in said lever an entering aperture a and the locking
slot b, as plainly shown in Fig. 2.
This lever is provided at its lower end with a lateral off-set or arm G, which is
provided on its inner face with a rack H, adapted to engage with a pinion I secured
to the upper end of the shaft J which is secured in a suitable vertical bearing in
the frame.
K is a coupling connecting the shaft J with the connecting shaft or rod L.
This shaft L is provided at its lower end with any suitable means of transferring
the motion to the valve or damper to be operated. In Figs. 1, 4 and 5, I
have shown it as applied directly to the valve stem M, to the upper end of
which is applied a coupling N into which the shaft L slidingly engages, a key-
way e being formed in the shaft and the screw b entering said key-way through
the coupling, all so arranged that the rotation of the shaft L will turn the
stem M through the coupling N, allowing a sliding movement of the coupling upon
the shaft L.
This stem I provide with a rapidly retreating thread so that when turned in one
direction the valve will quickly close, and when turned in the opposite direction the
valve will quickly open, the raising and lowering movement of the stem being
provided for in the construction described.
Where it is desired to carry the motion in a horizontal direction ( use the

page_text: bearing O having vertical and horizontal journals for the shafts L and P respec-
tively, motion being transmitted through one to the other by means of the bevelled
gear wheels Q and Q¹.
This construction allows me to dispense with a rigid frame connecting the ther-
mostat and valve casing, as it is not necessary with the shafts and gearing to have
the parts so exactly placed. The expansion and contraction is easily taken up in
the gears as is any slight displacement.
Having now particularly described and ascertained the nature of the said inven-
tion 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. In a temperature regulator, the combination of a frame, a thermostat, an
actuating lever, a rack on said lever, a connecting shaft and a pinion on said shaft.
with which the rack engages, substantially as described.
2. In a temperature regulator, the combination of a frame, a thermostat, a lever,
a lateral rack bar on said lever, a pinion with which said rack bar engages, a shaft
rotated by said pinion and a valve stem rotated by said shaft, substantially as
described.
3. In a temperature regulator, the combination with the thermostat acting to
rotate a shaft, a valve having a rapidly retreating thread, and a coupling having a
sliding engagement with the shaft or stem, substantially as described.
4. In a temperature regulator, the combination of the frame, the thermic cell,
the actuating lever B, a rack on the lever engaging a pinion for moving the
valve, the stem E, neck F, entering aperture and locking slot, substantially as
described.
DAL
1
" 1
HASELTINE, LAKE & Co....
45, Southampton Buildings, London, Agents for the Applicant.