Evening journal., 1897-08-17
NEW HOT-AIR MOTOR.
It's Inventor Wants to Locate
in Wilmington.
WILL LOOK AROUND FOR A SITE
A NEW AND GREAT INVENTION
WHICH WILL REvOLUTON1ZE
THE LOCoMTION OF ENGINES.
ONE WILMINGTON MAN SUB
SCRIBEs FOR CAPITAL STOCK.

'SCRIBES FOR CAPITAL STOCK.
Should a sufficient number of enter
prising citizens in Wilmington be in
duced to subscribe to stock for an en-
terprise which is considering the feast
bility of locating here, there will come
to this city an invention which will en-
tireiy revolutionize hOt-air motors. The
patentee of the new motor. Paul Roedi-
ger, of Philadelphia, desires to locate
in this city, and has been in communi-
cation with President Lawton, of the
Board of Trade for several days.
Mr.. Lawton has fully explained the
workings and the merits of the inven-
tion to many citizens, and several have
signihed their Willingness to take stock,
in the concern, among them being
Josepl. l.. Carpenter, Jr, President Of
the Farmers Bank. He has already
purchased $4,000 worth Of stock Mr.
Roediger will be in Wilmington on
Thursday and will be shown several
buildings which may be suitable fer
making the engines.
The engine represents wonderful sim
plicity, and yet great effectiveness in its
construction. Il has but few parts,
which are readily taken apart. and as
quickly assembled again, and a single
gas jet, burning one cents worth OF gas
per hour, is sufficient to generate one
horsepower.
The gas flame is applied to the lower
part Of the uprigh Il cylinder. The
upper inside of this is fitted with a pis-
ton which moves in a space covering
about one-third Of the tubes length.
Moving below this in the same cylinder
is a plunger consisting Of an air-tight
cylinder with a small air-space between
the plunger and the walls of the tube
| The upper exterior of this latter is
wrapped with pipes for the purpose of
maintaining a cooling current OF water
The action of the heat on the air in the
lower part of the cylinder moves the
plunger and heated air is then forced
into the upper end where it is imme-
diately chilled and drives the plungeI
down again and at the same time the
piston is forced up. THESE two MOVING
parts act on an eccentric ingeniously
arranged so that neither is on the cen
| ire az the moment each helping tn,
other at this critical part Of the cycle.
IL requires about three min
utes' time to put the engine in opera
tion after the heat has been turned on
but one of the novel features Of this
motor is that it will run, under load
for the same length Of time after th'
gas has been turned of, so that practi
lcaiiy- no time is lest IN getting unde
way. The engine is automatic and needs
no skilled attendant With two Of thes,
! power-generating cylinders mounted OF
the same shaft, the fy-wheels may b,
dispensed with. Then the motor may
be operated at a distance by means o.
an electrical touch buttCn regulating
the flame.
There cannot possibly be an explo
sion or danger Of any character. WheI
the engine is under full headway it car
be almost instantly stopped by the mer,
opening Of a valve. which allows tn
hot air to escape from the interior o
the cylinder
Mr.. Roediger will bring one Of thl
smaller motors to Wilmington oi
Thursday and it will be put on exhibi
tion in Mr. Lawton's window