Improvements in Steam-heaters.
Year: 1895

page_text: Date of Application, 22nd Oct, 1895-Accepted, 7th Dec., 1895
Improvements in Steam-heaters.
I, WILLIAM HENRY CURTIS of 97 Haiper Avenue, Detroit, Michigan, United
States of America Gentleman, do hereby declare the nature of this invention and
in what manner the saine is to be performed, to be particularly described and
ascertained in and by the following statement
The invention consists in the construction of a steam heater intended for use in
drying lumber, heating buildings etc., and belongs to that type in which the an 15
forced through a heating chamber to the place where it is intended to be used.
The invention particularly consists in the construction of a heater comprising
hollow bases, suitable steam supply and drip pipes and a series of nested heating
oi adiating pipes, connected thereto, the pipes being so constructed and arranged
that they are approximately of equal length so as to produce as nearly as possible
a perfect and even steam distribution, and further to take care of the expansion
and contraction without damage to the apparatus
The invention further consists in the construction, arrangement and combination
of the various parts, all as more fully hereinafter described.
In the drawings, Fig. 1 is a perspective view of my heater composed of a series
of like sections, coupled with a fau for forcing the air current through the heating
chamber.
Fig 2 is a sectional perspective view of one section of the base, and Fig 3 is a
sectional elevation though the base to illustrate the manner of diaming the
sections.
I prefer to make my heater in divisions each complete in itself, having a suitable
steam supply and drain pipe, so that the size or heating area may be vailed by
simply adding to or taking away the desued number of sections Such constiuc-
tion also enables me to control the heat in the various divisions separately, so that
I may regulate the temperature of the au in the heater as desned, or so that I
may, if necessary use part of the division for exhaust steam and for live steam.
As all of the divisions are alike a description of one will suffice for all.
A is the fan for forcing the air into the heating chamber B
In this dying
chamber I have shown four heater divisions: each consists of the separate hollow
base sections C C'. These base sections have an in lined bottom a which is
adapted to discharge into the tough or dian at the sides, as plainly shown in
the drawing
E is a drain ol
D is the steam supply pipe leading into the base at one side
drip pipe connected to the troughed portion of the bases The top of the base
sections are provided with a number of series of aligned apertures c.
In these apertures are secured the risers F of the radiating pipes, the outer
11sers being connected by the horizontal pipes G, while the inuer uses are
connected though a series of loops or return coils H, so construct as to give to
each pipe as nearly as possible a uniform passage for the steam and also to provido
nhinged connection between the heating pipes supported upon the base sections,
so as to take up satisfactorily the expansion and contraction thereof, without
danger of breaking the joints.
By an inspection of Fig. 1 it will be seen that the first of the inner pipes for the
coile has but one coil while the inner pipes have a gradually increasing number
of coils to give the effect above described.

page_text: The effect of this constanction is to make a series of aligned nested radiator
sections, supported apon -and connecting the two separate base sectious of each
division.
It is evident that any number of these divisions may be arranged side by side
and that if a separate valved controlled drain and steam pipe is provided that the
beat in each may be separately controlled
Where a series of these divisions are arranged in a single heater I preferably
place the diaphragmns between the division and prevent the air from going too
freely through the otherwise unobstructed space beneath the bases.
With this construction I get a large steam space in the base sections sufficient to
supply uniformly all the radiating pipes connected thereto and i also get the full
benefit of the radiation from the base sections in addition to the uniform radiation
from all parts of the system.
In Fig. 3 I show a diam pipe M for one box section C and a separate drai
pipe for the corresponding section C, inclined suitably for drainage. These
pipes have suitable controlling valves as shown
Having now particularly descubed and ascertamed the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim 16.
1. A steam heater compissing two hollow base sections, a steam supply, drain
pipes for the bases, and asses of nested radiating pipes connecting the tops of
the base sections, having horizontal sections to take up the expansion and
contraction.
2 A steam heater comprising two hollow base sections, a steam supply entering
one section, drain pipes and a series of nested radiating pipes connecting the top of
the base sections, the radiating pipes being of substantially uniform length.
3. A steam heater comprising two separated bollow base sections, steam supply
and drain pipes, a nested series of aligned radiating pipes connecting the tops of
the base sections, outer connecting pipes being substantially inverted U shaped,
the inner pipes comprising a number of loops or return bends, to produce a
substantially uniform length of all the pipes.
4. In a steam heater, the combination of the casing a selles of divisional
heaters therein, each comprising separated base sections a series of nested aligued
radiating pipes connecting the tops of the bases, the base sections having the
inclined bottom a the trough b and the steam supply and drain pipes.
5. In a steam heater, the combination of the casing, a series of divisions, each
comprising the separated hollow base sections. the nested radiator pipes connecting
the base sections, and the diaphragms I between the base sections.
Dated September 6th 1895
WILLIAM HENRY CURTIS.
Haseltine, Lake & Co.,
45 Southampton Buildings, London, W C., Agents for the Applicant