AN IMPROVEMENT IN CON- STRUCTION OF AN APPARATUS FOR OBTAINING AND APPLYING MOTIVE POWER
Year: 1871

page_text: LETTERS PATENT to Otto Trossin, residing 63, Schoenhauser Allee,
Berlin, (Prussia), for the Invention of "AN IMPROVEMENT IN CON-
STRUCTION OF AN APPARATUS FOR OBTAINING AND APPLYING MOTIVE POWER."
Sealed the 5th January 1872, and dated the 10th October 1871.
PROVISIONAL SPECIFICATION left by the said Otto Trossin at the
Office of the Commissioners of Patents, with his Petition, on the
10th October 1871.
I, OTTO TROSSIN, residing 63, Schoenhauser Allee, Berlin, (Prussia), do
3 hereby declare the nature of the said Invention for "AN IMPROVEMENT
IN CONSTRUCTION OF AN APPARATUS FOR OBTAINING AND APPLYING MOTIVE POWER,"
to be as follows:—
This is an improvement in construction of my former Invention, for
which the Royal Letter Patent has been granted under No. 2884 of last
year, and this apparatus is working after the same method with heated
compressed gas or atmospherical air.

page_text: The gas after being heated in a boiler drives the piston of a cylinder
passing on its way through a conical turning valve to let the gas enter
alternatively at both sides of the piston. After having worked in tho
cylinder the gas passes through a long spiral pipe, which is in a box of
cold water to have it cooled again, and then it (the gas) enters into a 5
large vessel, the store room. Inside of this vessel is an air pump, to
provide at first the machine witli sufficient compressed gas or air, and
afterwards to fill the boiler continually with cold gas from the stove
room.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Otto Trossin in the Great Seal Patent Office
on the 4th April 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, OTTO
TROSSIN, residing 63, Schoenhauser Allee, Berlin, (Prussia,) send.
greeting.
"
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of October, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Otto Trossin, Her special licence
that I, the said Otto Trossin, my exccutors, administrators, and
assigns, or such others as I, the said Otto Trossin, my executors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVEMENT IN CON-
STRUCTION OF AN APPARATUS FOR OBTAINING AND APPLYING MOTIVE FOWER," upon
the condition (amongst others) that I, the said Otto Trossin, my executors
or administrators, by an instrument in writing under my, or their, or one
of their hands and scals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal

page_text: plate, which places itself against the inner wall of the cylinder, so that
the gas cannot pass at the circumference of piston (9) however great the
pressure may be. The two ends of cylinder (B) are connected with each
other by the pipe (m), which communicates with the interior of cylinder
(B) through two valves (n, n¹). From the middle of pipe (m) leads a t
pipe (o) to the vessel (boiler), where it is closed by a valve opening into
the interior of the vessel. The two ends of another pipe (p) enters the
bottom of cylinder (B) through the valves (9, 9), which open into the
interior of cylinder (B), an air compression pump. At the junction of
the two piston rods (d and f) these are connected by a joint with a frame ]
(r) surrounding cylinder (B). From the right-hand side of this frame leads
a short rod (s) to the crank (4), to drive the crank shaft (u) and the fly
wheel (C). The just described parts, with the exception of the vessel,
the working cylinder (A) and fly wheel (C) are in a closed gas-tight
cylindrical box (D). Crank shaft (2) goes gas-tight through the wall of 1
box (D), what is done by the packing (v) outside of (D), by which the ring
(w) on the shaft (u) will be pressed against the wall of box (D) and close
tight the opening of the shaft (u). Turning valve (x) is pierced so that
it brings into connection the interior of box (D) with pipe (p) through
pipe (y). Is valve (2) turned a little, this connection will be closed, but 2
the common air will come into connection with the pipes (y and p) by
the pipe (2) (or the gasometer, if gas is applied).
The regulation of the machine is done by a conical turning valve (E)
[Folio 1, Fig. 2, a sectional view], which is in a cyl. (F). The
interior of (F) is connected by the openings (1 and 2) in its wall with 2
the cylinder canals (b, b). The axle (G) of turning valve (E) leads into
the interior of box (D) to the crank shaft (2). Here is a mitre wheel
fastened on it, which is worked by another smaller one on the shaft (u).
Axle (G) is interrupted at the point (H) by a spring in such a manner
that it may be shortened by the spring (3), which has for purpose to 3
close the valve tightly. Valve (E) has in its middle a canal (4) and
two deepenings (5 and 6). When turned round the canal (4) can bring
in connection pipe (a) with both of the cylinder pipes, and the latter
(5 and 6) can bring in communication the cylinder pipes with a pipe
that enters into a long serpentine cooling pipe (J), which is in a box (K) 3
filled up with cold water. Box (K) is provided with fresh cold water
from below by the force pump (L) in the same proportion as the warm
water of the upper part runs away through an off-pipc.

page_text: The packing (e) round the piston rod (d) is as follows:-Folio 1,
Fig. 3.-Rod (d) is surrounded by the cyl. (O), having on both ends a
border. One end of cyl. (O) is open and the other end has a bottom
with an opening in its centre. The cylinder (O) is larger than rod (d),
and the intermediate space is filled up by broad rings (P), just fitting
on the rod (d). These rings are all cut, and the cut sides are at some
distance of each other. As the rings are turned conically inside and
outside, one can be pushed a little over the other in the interior of
cyl. (O). This is done by another cyl. (Q), well fitting on the rod (d),
and pushed in a little into cyl. (O). Cyl. (Q) has on its middle part an
oval border. The pushing in of cyl. (Q) into cyl. (O) is done by means
of two screws (S, S,) opposite to each other, and which bring into
junction the borders of cyl. (O and Q). When the screws (S, S,) are
worked cyl. (Q) will be pushed into cyl. (O). The former presses upon
the conical rings (P), whereby they push themselves a little into each
other; but when the cut sides approach each other, the diameter of the
rings (P) will grow smaller, and in consequence will close gas-tight the
rod (d).
The regulator of the machine is as follows:-Inside of the gas feeding
pipe (a) is placed another short pipe (Z) closed at one end. At the other
end are two openings (8, 8¹,) at the circumference. Round this pipe is
another one (9) that can be pushed just over it. Behind this moves a
plate (10) on a small rod (11), which is fastened at the bottom of
pipe (Z). On the plate (10) are four pegs (12, 12', 13, 13'), and the
spring (14) keeps the plate on the place where it is in the Drawing. If
the valve (E) opens a cylinder pipe the gas goes from the vessel through
pipe (a), openings (8, 8',), pipe (Z), and valve canal (4) into cyl. (A).
While this is done the gas presses against plate (10) and extends the
spring (14), whereby the plate (10) is moved a little towards the pipe (9).
If the pressure of the gas is but little the peggs (12, 12,) will not touch
pipe (9), but if the piston (c) works quicker the pressure will be greater,
the pegs (12, 12',) will reach pipe (9) and push it more or less over the
openings (8, 8',) of pipe (Z), whereby these will be more or less closed
and the admittance of the gas will be regulated accordingly.
To lubricate the-heated parts of the machine melted sulphur may be
employed instead of oil.
If the machine is put to work fire is brought on the grate under the
11
1 11

page_text: vessel. Turning valve (E) in pipe (a) being shut now, the expansion
will increase and get for instanco that of two atmospheres, if the cold
air has been heated to 272 degrees. We now open the turning valve (E),
the heated air of the vessel will pass through pipe (a), valve canal (4),
and cylinder pipe (b) behind the piston (c) and drive the latter forward.
If piston (c) has made part of its way canal (4) will have passed the
opening (1) and therefore closed the cylinder canal (6). The heated air
shut up now inside the working cylinder (A) moves the piston (c) by its
expansion forward, and the air being before the piston goes out through
the cylinder canal (6') and deepening (5) of turning valvo (E) into the
cooler pipe (J). If the piston arrives at the end of its way the deepening
(5) covers quite the opening (2) and closes it. The engine working on
now, moved by those parts which are still in motion, will open the
cylinder canal (6') by valve canal (4). The heated air being in the
vessel now will go also through pipe (a), valve canal (4), and cylinder
canal (b) behind the piston (c) from the other side and drive it back.
The hot air remained before the piston will go out through canal (6) and
deepening (6) of valve (E) into the cooling pipe (J). The walls of this
pipe, being kept cold by the surrounding water, will cool the hot air
passing through, and having entered cold into box (D). By the working
of piston (c) the crank shaft (u) and the fly wheel (c) will be turned,
also the metre wheels, and with them the turning valve (E) to regulate
the engine. As the heated air of the vessel would be soon used, while
the machine is working new cold air is brought in by the compression
pump (cyl. B) to be heated. As it was said before, rod (f) of the
pump (B) is in connection with the piston rod (d). If therefore the
piston (c) moves to the right side the piston (9) of the pump will do
the same, and the air being before it will be compressed, but as soon as
the expansion of the air in the pump (B) is a little greater than in the
vessel it will lift up valve (n) and enter the vessel through pipe (m).
The empty space behind the piston (g) will be filled with atmospheric
air through pipe (2), valve (2), pipe (y), and (2) by opening of the
valve (g). If the piston (9) goes back the valves (n & g) will close
themselves, but the valves (n' & 9') will be opened. Through the first
the air, being now before the piston, will be pushed into the vessel;
through the latter (g') the empty space behind the piston (g) will also be
filled with atmospheric air through (Z, X, Y, & P). Since no air can
escape out of the machine and the compression pump (B) brings always
more air into it, the air in consequence will get compressed in the