Improvements in Piston Slide Valves for Fluid Pressure Engines.
Year: 1890

page_text: Date of Application, 25th Aug., 1890
Complete Specification Left, 5th Mar., 1891-Accepted, 25th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Piston Slide Valves for Fluid Pressure Engines.
MAX JOSEPH HEINZMANN, 3 Kirchenstrasse, Lübeck, Germany, do hereby
declare the nature of this invention to be as follows:-
The improvements in these piston slide valves for fluid pressure engines consist
therein, that the piston slide valves as marked A & B in the drawing with
exception of the largest cylinder N will be taken with on the not working sides of
the pistons into cylinders H & M and that by means of the corresponding positions
of the winches O P Q of the at side lying engines the piston slides let the out-
going steam of their own engines, for instance at first between the piston slide A
& the winch C, get into the next larger cylinder M on the one side E of the
piston D and behind themselves the piston slides let the steam escape to the other
side between piston D and piston slide B and so on untill at last the steam escapes
from the largest cylinder N near I into the open air or into the condenser.
In the single acting compound, driplex, quadruplex &c. engine as designed by me
the sphere of action is as follows:
The steam gets in through i, is moved by the slide h, which is worked by the
eccentric winch E; close to the piston the steam enters into the cylinder H through
canal and at the end of the stroke it will let it escape into steam-compartment
(receiver) C as well as behind the piston of the cylinder H; in the same time the
steam approaches the piston-slide m; the latter let the steam get in through the
canal d near the piston into cylinder M and at the end of the stroke it let the steam
escape into the steam-compartment (receiver) as well as behind the piston of the
cylinder M, in the same time also here the steam approaches the piston-slide n.
At last the steam will be conveyed by the slide n through the in-going steam-canal g
before the piston into cylinder N and let out at the end of the stroke through the
pipe a, which is connected with the back part of the piston of the cylinder N
through pipe k.
The piston-slides are of a length, which is composed of the lengths of the outer
cover and of the width of the in-way canal and inner-cover.
The winch O has to serve the winch P as eccentric and the winch P has to serve
winch Qin the same way; the positions of which to each other require the turning
direction to the arrow p.
If one intends building a two cylindric compound engine it is only necessary to
leave out the winch Q and the largest cylinder N as well as the slide-cylinder
with slide n of the smaller cylinder and let the out-going steam escape behind the
slide m into the open air or into the condenser.
Dated this 15th day of August. 1890
MAX JOSEPH HEINZMANN,
3, Kirchenstrasse, Lübeck, Germany, Engineer.
COMPLETE SPECIFICATION.
Improvements in Piston Slide Valves for Fluid Pressure Engines.
MAX JOSEPH HEINZMANN, Engineer, at Dippoldiswalde in Saxony, Germany,
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:-
The dgs. referred to are those filed with the Provl. Specification.
The manner of invention and operation on the fluid pressure engine in question is

page_text: In the beside each other lying cylinder, M beside H and N beside M the
piston C D and X of the other side are driven forward in the direction of the
arrow E. C is driven by high pressure-steam, piston Dris driven by the exhaust-
steam, coming out of cylinder II and piston X by the exhaust-steam out of
cylinder M. As the pistons move backward they are surrounded by an equal
pressure of steam, because the exhaust steam, flowing off before the piston com-
municates with. both sides of the piston no over-pressure. steam is acting upon. the
other side of the piston.
As receptacles for the steam flowing out of cylinders H and M on the steam
filled. side of the piston serve besides the space on the empty sides of the pistons C
and D the receivers R and T. The high pressure steam enters through pipe F. on
the slide G, which, by means of the eccentric crank K allows the steam to pass in
and out through the canal L to cylinder H.
As an invention I regard the appliance of the piston-slides A and B, which are
pushed: along the empty sides of the pistons C and D and which allow the exhaust
steam of their own engine to pass between the piston-slide and the piston into
cylinder M. through canal S and into cylinder N through canal U on one side of
the piston. and to pass out again on the other side,, until at last the steam passes
through pipe J in the air and through pipe V behind the piston X.
The piston-slides have that length only, which. is composed of the length-measure
of the external lap, the breadth of the admission-canal and the internal lap.
The crank-pin O serves as in engine with cylinder H, for engine with cylinder M
and crank P crank P serves just as crank pin K in engine with cylinder H,. for
engine with cylinder N and crank Q. The positions of the cranks to each other
condition the turning directions towards arrow W.
Constructing a two cylinder compound engine one leaves out the crank Q and
the largest cylinder N as well as the cylinder with slide B next to the smaller
cylinder and allows the exhaust-steam to escape behind slide A out of the engine
or into the condenser as well as behind the piston D through: a. separate pipe.
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 :
The improvements in piston slide valves for single acting fluid pressure engines
so constructed that the piston-slides are pushed along on the empty sides of the
piston with the exception of the largest cylinder and which by aid of the corre-
sponding positions of the cranks of the beside each other lying engines allow
the exhaust-steam of their own engine to pass between the piston slide and
piston into the largest cylinder or engine respectively on one side of the piston
& to pass out again on the other side until at last the steam passes out of the
largest cylinder into the air or into the condenser.
Dated the 28th of February 1891.