IMPROVEMENTS IN INJECTORS FOR RAISING AND FORCING FLUIDS
Year: 1874

page_text: LETTERS PATENT to Arnold Budenberg, of the City of Manchester,
Engineer, for the Invention of "IMPROVEMENTS IN INJECTORS FOR
RAISING AND FORCING FLUIDS."-A communication from abroad by
Bernhard August Schäffer and Christian Frederick Budenberg, of
PROVISIONAL SPECIFICATION left by the said Arnold Budenberg
at the Office of the Commissioners of Patents, with his Petition,
on the 26th January 1874.
I, ARNOLD BUDENBERG, of the City of Manchester, Engineer, do
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN INJECTORS FOR RAISING AND. FORCING FLUIDS," a communication to me
from abroad by Bernhard August Schäffer and Christian Frederick
Budenberg, of Buckau-Magdeburg, in the Empire of Germany, to be as
follows:-
These improvements have for their object the construction of a simple
form of injector which shall be capable of injecting fluids at varying
pressures, say from 12 to 150 lbs. to the square inch, with a single
spindle, which is the only adjustable part of the apparatus.

page_text: Now this Invention consists in arranging the three nozzles at suitable
distances from each other and securing them in such stationary positions
instead of making such nozzles adjustable in distance from each other
according to the steam pressure as hitherto practised.
A small passage or hole is formed in the spindle for a short distance t
from the point upwards which meets side holes or passages also formed
in such spindle in order that when it is screwed down into the steam
nozzle there shall still remain a small passage for the steam.
The method of working this injector may be described as follows:-
When the steam is first turned on by the ordinary cock or valve (the :
spindle being previously screwed down) a sufficient jet of steam passes
through the hole in the spindle to induce the water to flow into the
injector and to indicate itself by the overflow pipe; the spindle is then
screwed up to allow the steam to pass through the steam delivery nozzle
and so to force the water forward into the boiler, the quantity being
adjusted to the greatest nicety by simply turning the screwed spindle
until the overflow ceases to run.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Arnold Budenberg in the Great Seal Patent Office
on the 25th July 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ARNOLD
BUDENBERG, of the City of Manchester, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of January, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Arnold Budenberg, Her special licence that
I, the said Arnold Budenberg, my executors, administrators, and assigns,
or such others as I, the said Arnold, Budenberg, my executors, admi-
nistrators, 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 "IMPROVEMENTS IN INJECTORS

page_text: FOR RAISING AND FORCING FLUIDS," a communication to me from abroad by
Bernhard August Schäffer and Christian Frederick Budenberg, of
Buckau-Magdeburg, in the. Empire of Germany, upon the condition
(amongst others) that I, the said Arnold Budenberg, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, 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 Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Arnold Budenberg, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement :-
. These improvements have for their object the construction of a simple
form of injector which shall be capable of injecting fluids at varying
pressures with a single spindle, which is the only adjustable part of the
apparatus.
Now this Invention consists in arranging the three nozzles at suitable
distances from each other, and securing them in such stationary positions
instead of making such nozzles adjustable in distance from each other
according to the steam pressure as hitherto practised.
A small passage or hole is formed in the spindle for a short distance
from the point upwards which meets side holes or passages also formed
in such spindle in order that when it is screwed down into the steam
nozzle there shall still remain a small passage for the steam.
The method of working this injector may be described as follows:-
When the steam is first turned on by the ordinary cock cr valve (the
spindle being previously screwed down) a sufficient jet of steam passes
through the hole in the spindle to induce the water to flow into the
injector and to indicate itself by the overflow pipe; the spindle is then
screwed up to allow the steam to pass through the steam delivery nozzle
and so to force the water forward into the boiler, the quantity being
adjusted to the greatest nicety by simply turning the screwed spindle
until the overflow ceases to run.
In order that the said Invention may be the more readily understood
and carried into practical effect, I have hereunto annexed a Drawing

page_text: illustrating two modifications of the Invention drawn to about full
size.
Fig. 1 is a sectional view of onc modification shewing the injector in
its entirety, and Fig. 2 is a sectional view of so much of an injector as
is necessary to describe the other modification of my Invention. Fig. 3
is an exterior view of the combination or water cone, shewn apart from
the injector, and Fig. 4 is a sectional plan of Fig. 3 through the line
a-b. In all the views the same letters of reference are used to denote
similar parts.
The
A is the body of the injector containing the steam inlet B, the water
inlet C, and the overflow pipe D. E is the passage leading to the boiler
through the back pressure valve F; G is the steam nozzle provided with
a flange H, which is disposed and secured in a suitable annular recess
formed at the junction of the two main flanges of the body A, as
illustrated. This steam nozzle in Fig. 1 forms also the seating for a
valve I mounted upon a swivel J at the lower extremity of the screwed
spindle L, and by means of which valve the steam may be entirely shut
off and so dispense with a stop-cock or valve for the purpose.
spindle of this valve I has a small passage i formed in it from its point
up to side passages j below the face of the valve I, in order that when
such valve is raised off its seating the steam may first pass through such
passage i, and by playing into the cone of the water nozzle (herein-after
described) may so induce the lifting of the water in starting the injector.
The combination or water cone M is formed in two parts n and o, screwed
together, as seen more clearly in Fig. 3; the side openings p to allow
the escape of the overflow water being clearly shewn by the section
Fig. 4. This combination cone M is similarly secured in position to the
steam nozzle G, viz., with a flange m fitted in a recess, but formed in
this case between the two lower flanges, and a perfect joint is secured
between the water and overflow spaces by the packed piston joint N.
The spindle L being now screwed down as illustrated the action of this
injector is as follows:-In starting the injector the spindle L is first
slightly unscrewed to permit a sufficient jet of steam to pass down the
passage i and thus induce the water to enter the injector and to overflow
therefrom by the pipe D. The spindle is now still further unscrewed
until the parallel portion of the spindle of the valve I is clear of the
correspondingly parallel portion of the steam nozzle G (in which it fits
accurately) when the steam will be free to pass through the annular space

page_text: now surrounding such valve spindle and so drive the water forward through
the water nozzle M into the boiler; the unscrewing of the spindle L being
only continued until the water ceases to overflow at the pipe D. It will
thus be apparent that the steam water and overflow nozzles are all
fixtures in this Invention, being adjusted as to their length, width of
bore, and relative position in the course of construction, and according
to the quantity of liquid requiring to be injected, and that the only
adjustable part of the apparatus is the screwed spindle L.
In the modification represented by Fig. 2 it is essential to have a stop-
cock or valve to shut off the supply of steam, and in this case the
extremity of the screwed spindle L is made conical, and acts as the valve
for preventing the steam passing through the steam nozzle G until the
supply of water has been raised by the action of the small passage i.
In this modification to start the injector to turn on the steam until
the water overflows, when the spindle L may be unscrewed until
it ceases, as herein-before described.
I claim the construction of injectors with fixed nozzles, as arranged,
and in combination with an adjustable spindle and valve having a small
passage formed therein as and for the purposes herein-before described
and illustrated on the accompanying Drawing:
In witness whereof, I, the said Arnold Budenberg, have hereunto
set my hand and scal, this Twenty-fourth day of July, 1874.
ARNOLD BUDENBERG. (L.S.)