Improvements in and connected with Locomotive-engines.
Year: 1894

page_text: Date of Application, 25th Oct., 1894
Complete Specification Left, 10th June, 1895-Accepted, 3rd Aug., 1895
PROVISIONAL SPECIFICATION.
Improvements in and connected with Locomotive-engines.
We, HEINRICH DEGENER, of Rummelsburg near Berlin, Engine-driver, and
ROBERT DEISSLER, of 2, Elsen Strasse of Treptow near Berlin, in the Kingdom
of Prussia, German Empire, Civil Engineer do hereby declare the nature of this
invention to be as follows:-
This invention relates to locomotive-engines and has for its purpose to enable
the engine-driver to regulate the draught for the fire without acting thereby on the
blast-pipe.
It has been found a serious drawback in locomotive-engines, that, if the latter
are running with high speed, the draught produced by the blast-steam is by far too
strong, and it results therefrom, that the fuel is torn through the flues without
being fully consumed and exhausted. There arises thus a considerable waste of
fuel, the latter being, as is well known, a rather costly material.
The purpose proper of our invention, therefore, is to do away with the said loss
of fuel, and we attain our purpose by arranging below the chimney and around the
blast pipe a hopper-like casing that on the whole of its circumference is provided
with apertures, through which the fire-gases coming from the furnace are passing
into the chimney. Within the said hopper-like casing we arrange another casing,
having also apertures, and being moreover adapted to be partly rotated within the
outer, fixed casing.
We wish to call special attention to the fact, that said two combined casings are
arrarged not above the blast-pipe, but are surrounding the same in such a way,
that the blast steam coming from the united exhaust-pipes may freely pass
directly into the chimney without coming in the least in contact with the said
two casings.
The inner of the two casings may be moved by means of any intermediate
mechanism from the cap of the engine, and is turned more or less so as to close the
apertures of the outer casing more or less, if the speed of the engine exceeds the
normal one. Therefore, in spite of the stronger action of the waste-steam,
the strength of the draught may be kept on its normal degree, so that any waste of
fuel is effectively prevented.
The outer casing may at the same time be used as a spark-arrester, in that
separate small plates corresponding in size to that of the apertures may be arranged
in front of the said apertures. We prefer to fasten the said separate plates below
the respective apertures, and to arrange them so that they extend upwards in an
inclined direction.
We wish it to be understood, that the movable inner casing may be operated not
only mechanically by hand, but also automatically from the valve-gearing.
Dated this 25th day of October 1894.
HEINRICH DEGENEK,
ROBERT DEISSLER,
By Geo. Thos. Hyde,
Agent for the Applicants.

page_text: in and connected with Locomotive-engines.
We, HEINRICH DEGENER of Rummelsburg near Berlin, Engine-driver, and
ROBERT DEISSLER of 2, Elsen-strasse of Treptow near Berlin, in the Kingdom
of Prussia, German Empire, Civil Engineer do hereby declare the nature of our
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 locomotive-engines, and has for its purpose to enable
the engine-driver to regulate the draught for the fire without acting thereby on the
blast-pipe.
It has in locomotive-engines been found a drawback, that, if the quantity of live-
steam with which the cylinders are charged at each stroke of the piston exceeds
the normal one (which always is the case if an ascent is to be overcome or the
train is a heavy one) and the quantity of blast-steam is thus increased corre-
spondingly, the draught resulting from, or produced by, that blast-steam is so
strong a one, that the fuel is torn away from the grate, and carried away through
the smoke-stack, without being properly burnt or exhausted. There arises thus in
those cases a considerable waste of fuel, the latter being, as is known, a rather
costly material.
The purpose proper of our invention, therefore, is to do away with the said loss
of fuel, and we attain our object by surrounding the blast-nozzle with a casing
extending upwards, and having the whole of its circumference provided with
apertures. The latter form a way or ways for the furnace-gases passing from the
flues into the smoke stack. Said casing is combined with another casing, arranged
either inside or outside the former, and being adapted to be turned.
Said second
casing is also furnished with apertures and the ribs left between the apertures of
that casing are as broad as to be able to close the apertures of the other casing. The
way or ways for the furnace-gases may thus be narrowed or even completely closed
without affecting in any manner the way for the blast-steam. We wish to call special
attention to the fact, that said two combined casings are arranged not above the
blast-pipe, but surround the same, in such a manner, that the blast-steam on coming
from the exhaust-pipe may freely pass directly into the chimney.
We have shown one mode of construction in the accompanying drawing, in
which a designates a hopper-like bi-partite casing arranged below the smoke-stack A,
and surrounding the blast-nozzle B. Said casing is provided with a greater
number of apertures a', and contains, or encompasses a similar casing b, that may
be turned by the inediation of a lever e fulcrumed at c¹ to a suitable pivot of the
smoke-box C, and taking through a suitable slot of the casing a. Said lever c is
connected with a rod d extending rearwards into the cab of the locomotive-engine
so as to enable the driver to operate the movable casing b.
The free surfaces of all the apertures a¹, or b¹ respectively, combined are at least
equal to the free section of the smoke-stack A at the narrowest part of the same,
and there is thus no throttling whatever of the furnace-gases as long as the
apertures a and b coincide. If, however, the casing bis turned for a certain
angle, the apertures of the casing a will then be covered, or narrowed, or even
closed respectively, to a corresponding extent, and the sucking action of the blast-
steam will, therefore, be correspondingly altered, as above explained.
The engine-driver may thus lessen the draught for the furnace as soon as there
greater quantities of waste-steam tban normal ones are exhausted by the blast-
nozzle B, and in consequence thereof unburnt particles of fuel are carried away
from the grate. There may thus by the use of our improved draught-regulator a

page_text: great saving of fuel be obtained, as every particle of the latter can fully be
exhausted.
The outer casing may well be used as a spark-arrester, in that small plates a
corresponding in size nearly or wholly to that of the apertures a', and having an
inclined position with regard to the outer surface of said casing, may be arranged
in front of said apertures. We prefer to use for said plates the small pieces
of metal that have served for producing the apertures a¹ as represented in.
Figure 3.
We wish it to be understood that with respect to the configuration of the two
casings we do not confine ourselves to that shown in the drawing; the outer shape
of the casings may well be altered without departing from our invention; provided,
one of the casings may be turned within or around the other.
Having now particularly described the nature of our said invention, and in what
manner the same is to be performed, we declare that what we claim is :-
1. In a locomotive-engine, the combination with the blast nozzle, of a fixed
casing surrounding said nozzle, and a rotatable casing arranged inside or outside
said fixed one; said two casings having apertures, and non-perforated intermediate
portions adapted reciprocally to narrow or close said apertures, for the purpose as
described.
2. In a locomotive-engine, the combination with the blast-nozzle, of a fixed
casing surrounding said nozzle, and a rotatable casing arranged inside or outside
said fixed one; said two casings having apertures, and non-perforated intermediate
portious adapted reciprocally to narrow or close said apertures, the said fixed
casing being furnished with plates corresponding in size nearly or wholly to the
apertures, and being arranged shortly in front of the latter, for the purpose as
described.
3. In a locomotive-engine, the combination with the blast-nozzle, of a fixed
casing surrounding said nozzle, and separating the smoke-box from the smoke-
stack, and of a rotatable casing arranged inside said fixed one; said two casings
being of hopper-like configuration, and having apertures, and non-perforated
intermediate portions adapted reciprocally to narrow or close said apertures, for
the purpose as described.
Dated this 10th day of June 1895.
HEINRICH DEGENER,
ROBERT DEISSLER,
By Geo. Thos. Hyde,
1, Broad Street Buildings, London, E.C., Agent for the Applicants.