Improvements in Means or Apparatus Employed in Heating Railroad Cars or other similar Vehicles.
Year: 1888

page_text: Date of Application, 10th Sept., 1888
Specification Accepted, 12th Oct., 1888
COMPLETE SPECIFICATION.
Improvements in Means or Apparatus Employed in Heating Railroad
Cars or other similar Vehicles.
DANIEL DANA SEWALL of Portland in the County of Cumberland, State of Maine,
one of the United States of America, Manager of the Sewall Safety Car Heating
Company of Portland in the same State, 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 has for its object to construct a car heating apparatus of that class
using steam from the locomotive, which is conveyed from ear to car through a main
steam pipe.
in accordance with this invention the main steam pipe is extended from end to end
of the train, being joined between the cars by couplings such for instance. as
shown in the Specification of British Patent No. 7510 dated May 25th 1887, granted
to one James Hale Sewell.
In each car several steam radiators are employed, as for instance one beneath each
seat, which are connected with the main steain pipe suitable valves being employed to
admit steam to the radiators.
Another pipe or conduit is arranged beneath the car which serves as a receiver for
the water of condensation from the several steam radiators.
This pipe is suitably pitched, and at its lowest point is provided with a valve
or a trap of any suitable construction, trap shown in aforesaid Specification
No. 7510 of 1887 being preferable.
and
Figure 1. shows in plan view a car heating apparatus embodying this invention
Figure 2 an end view showing one of the steam radiators.
Figure 3. is a diagrammatic view indicating the general arrangement of the
apparatus in side elevation taken in a direction at right angles to Figure 2 but to a
smaller scale but the general arrangement may be modified to meet the requirements
of the particular description of carriage to which it may be fitted.

page_text: The dotted lines A. represent the side walls of a car, and the dotted lines
transversely arranged seats.
the
The main steam pipe is preferably arranged beneath the car, it being coupled to
the next car or to the locomotive by suitable couplings.
Several branch pipes a extend vertically from the main steam pipe, said pipes
connecting at their upper ends with radiators c.
An independent radiator c is arranged beneath each seat, and the branch pipe a¹
joins it at the highest point as best shown in Figure 2.
From the highest point the pipes of the radiator incline in opposite directions
towards the ends, from which points they return by oppositely-inclined pipes toward
the centre so that the highest and lowest point is substantially at the centre.
The branches a are each provided with valves as c¹ for controlling the passage of
steam.
Leading from the lowest points of the radiators, are branch pipes e² which empty
into a single pipe c³ preferably arranged beneath the car beside the main steami
pipe.
The pipe 3 extends only from end to end of each car, and is pitched from the ends
downward toward the centre, so that all water of condensation will travel toward the
centre at which point a steam trap of any suitable construction is attached.
It will thus be seen that an independent radiator is provided beneath cach
transversely arranged seat and an independent valve is provided for each one, while
all water of condensation collects in a single pipe or conduit and is conveyed to a
steam trap.
I do not desire to limit my invention to the particular construction herein shown
as many slight changes might be made.
In lieu of the pipe c³, I might place a trap on the return pipe of each radiator, or
the return pipe of the radiator might empty into the main steam pipe.
In lieu of a trap I may employ a valve.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In a car heating apparatus, the main steam pipe, combined with the several
branch pipes a¹, and the radiators, substantially as described.
2. In a car heating apparatus, the main steam pipe, branch pipes a', combined with
the transversely arranged radiators, and valves e, substantially as described.
3. In a car heating apparatus, the main steam pipe, and radiators, combined with
the receiving.pipe e, substantially as described.
4. In a car heating apparatus, the main steam pipe, and radiators pitched as
shown, combined with, the branch pipes a entering at the highest point of the
radiators, substantially as described.
5. In a car heating apparatus, the main steam pipe, branches, radiators, pipes &
and pipe pitched as described, substantially as described.
6. A car heating apparatus constructed and arranged substantially as described.
Dated the 10th day of September 1888.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.