Improvements in Motor Carriages.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Motor Carriages.
I, GOTTLIEB DAIMLER, of Cannstatt, in the Kingdom of Wurttemberg, German
Empire, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in motor-carriages and has for its
object to provide a mechanism by means of which the heat produced by the
motor can be used for heating the interior of motor carriages, such as buses,
trams and the like. The simplest way of using the heat of the motor for heating
the carriage would be to connect the motor casing with the interior of the
carriage by means of conduits or pipes, so that a direct transmission of the heat
produced within the motor is rendered possible.
In many cases this would not be practicable for the reason that the fumes of
the motor would enter the casing and consequently the interior of the carriage,
thus filling the same with a bad smell. In the case of my invention a device
for cooling the circulating water can be advantageously employed, which device
also serves to supply warm air to the interior of the motor carriage.
For this purpose I provide in the front portion of the carriage a heater, which
may be in the form of a shallow box provided with a number of horizontally
arranged tubes open to the atmosphere at their front ends and leading to an
air accumulator box. The atmospheric air entering these tubes becomes heated
by the water contained within the box and is conducted thence to a hot air
accumulator box from where it can be conducted further into the carriage.
The heater is connected to the water jacket of the motor by pipes suitably
controlled, so that a constant circulation of the water will take place and a
constant heating of the cold air entering the tubes and crossing the heater is
effected, while the water is correspondingly cooled.
In order to make my invention more clear, I refer to the accompanying
drawing, in which a motor-carriage provided with my arrangement for heating
the carriage is represented schematically.
The motor m is located in front of the seat a of the driver, while the body b
of the carriage is situated behind the driver-seat. The motor is enclosed within
a casing c. A flat heater d is fixed to the front wall of this casing c. This
flat box d is traversed by a large number of horizontal tubes e. Tubes ff lead
from the water jacket of the motor cylinder to the heater d, any suitable
regulation mechanism may be employed for effecting a constant circulation of
the water, as required.
The tubes e are in front open to the atmosphere. Their inner ends are open
to an air accumulator box g. A pipe serves to connect this accumulator box
with the body b of the carriage. A regulation device k of suitable construction
is arranged within the pipe h for the purpose of regulating the quantity of
heated air passing through this pipe. In the drawing represents a fan or
ventilator fixed to the shaft n and effecting a strong air draught through the
cooling pipes e. By means of this fan my mechanism forms not merely a

page_text: heating device for the carriage, but even effects a reliable ventilation of the
same.
1000
Por Carriages.
I, GOTTLIEB DAIMLER, of Cannstatt, in the Kingdom of Wurttemberg, German
Empire, Engineer, 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 improvements in motor-carriages and has for its
object to provide a mechanism by means of which the heat produced by the
motor can be used for heating the interior of motor carriages, such as buses,
trams and the like. The simplest way of using the heat of the motor for heating
the carriage would be to connect the motor casing with the interior of the
carriage by means of conduits or pipes, so that a direct transmission of the heat
produced within the motor is rendered possible.
In many cases this would not be practicable for the reason that the fumes of
the motor would enter the casing and consequently the interior of the carriage,
thus filling the same with a bad smell. In the case of my invention a device
for cooling the circulating water can be advantageously employed, which device
also serves to supply warm air to the interior of the motor carriage.
For this purpose I provide in the front portion of the carriage a heater which
may be in the form of a shallow box provided with a number of horizontally
arranged tubes open to the atmosphere at their front ends and leading to an
air accumulator box. The atmospheric air entering these tubes becomes heated
by the water contained within the box and is conducted thence to the hot air
accumulator box from where it can be conducted further into the carriage.
The heater is connected to the water jacket of the motor by pipes suitably
controlled, so that a constant circulation of the water will take place and a
constant heating of the cold air entering the tubes and crossing the heater is
effected, while the water is correspondingly cooled.
In order to make my invention more clear, I refer to the drawings sent in
with the Provisional Application, in which a motor-carriage provided with my
arrangement for heating the carriage is represented schematically.
The motor m is located in front of the seat a of the driver, while the body b
of the carriage is situated behind the driver's seat. The motor is enclosed within
a casing c having on one side a shallow or flat box d. This flat box d is traversed
by a large number of horizontal tubes e. Tubes ff lead from the water jacket
of the motor cylinder to the heater d, suitable regulation mechanism may be
employed for effecting a constant circulation of the water, as required.
The tubes e are in front open to the atmosphere. Their inner ends are open
to an air accumulator box g. A pipe h serves to connect this accumulator box g
with the body 6 of the carriage. A regulation device k of suitable construction
is arranged within the pipe h for the purpose of regulating the quantity of
heated air passing through this pipe. In the drawing represents a fan or
ventilator fixed to the shaft n and effecting a strong air draught through the
cooling pipes e. By means of this fan my mechanism forms not merely a
heating device for the carriage, but even effects a reliable ventilation of the
same,

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
-
1. In motor-carriages, the combination of the body of the carriage with the
motor casing, pipes connecting the casing to the body of the motor, for the
purpose and substantially as described.
2. In motor-carriages, the combination with a condenser d, tubes f f¹ con-
necting the same to the water jacket of the motor cylinder, pipes e traversing
the condenser open to the atmospheric air and leading to an air accumulator
box, pipe connecting the hot air accumulator box with the interior of the
carriage, means to regulate the hot air current passing through the pipe h, a
ventilator fixed to the motor shaft n, substantially as and for the purpose
described.
Dated this 12th day of January 1900.
BOULT, WADE & KILBURN,
Agents for the Applicant.