Improvements in Injectors.
Year: 1890

page_text: Date of Application, 14th July, 1890
Complete Specification Left, 3rd Apr., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Injectors.
We, FREDERICK JOHN BORLAND, of 46 Market Street, Manchester, in the
County of Lancaster, Engineer, RALPH RUPERT WOOD, of Marple Bridge, in
the County of Derby, Bleacher, and WALTER CARTER, of Marsden Square,
Manchester aforesaid, Carrier, do hereby declare the nature of the said invention to
be as follows:-
Our invention relates to what are commonly termed, re-starting injectors, in
which there is an opening in what is called the combining cone or nozzle, through
which fluid can have free vent as well as at the ordinary overflow, when the injector
has been stopped, or the jet has failed, and while it is automatically re-starting
itself; this outlet from the combining nozzle being so arranged as to be closed by a
selfacting valve when the jet is established, but which opens to give free vent to
get up the full velocity of the jet when it has failed, and is to re-start again.
Our invention consists in the improved arrangement and construction of the
parts by which the injector is less costly to make and more effective in action.
The injector casing is made with the usual junctions for steam, water, overflow
and delivery, which may be flange junctions or the ordinary screw union junctions.
It is also constructed in two parts to be screwed or otherwise secured together.
The steam nozzle is as usual made separate and is inserted at the steam branch
of the casing.
The first part of the combining nozzle is made solid with the casing, but may be
made separate and screwed or otherwise secured therein.
The second part of the combining nozzle is connected at its large end by radial
arms with a ring screwed upon its exterior to screw into the casing, the two parts
of which are at this point screwed or are otherwise secured together.
There is a space left between the first and second part of the combining nozzle,
which forms the supplementary overflow outlet, into a chamber formed within the
casing.
The under side of the ring, and a shoulder formed upon the exterior of the
second part of the combining nozzle are faced to form a valve seating for a disc
facing or valve made upon the end of a tube that can slide freely upon the
cylindrical exterior of the second part of the combining nozzle-and which valve
facing when moved against the seating upon the ring and shoulder upon the
exterior of the second part of the combining nozzle will close the chamber into
which the supplementary overflow first comes, but when this valve moves away
from its seating, the outlet from that chamber is opened and the liquid and
steam can pass out through the ordinary overflow chamber.
The valve tube has or may have a facing at both ends so that it will be
right when placed upon the exterior of the second part of the combining nozzle
whichever end is up.
The ordinary overflow outlet is between the end of the second part of the
combining nozzle and the receiving and discharging nozzles which are or may be
formed solid with the casing or separate therefrom and screwed or otherwise
secured therein.
Dated this Twelfth day of July 1890.
PETER J. LIVSEY,
Agent.

page_text: . COMPLETE SPECIFICATION.
'Improvements in Injectors.
We, FREDERICK JOHN BORLAND, of 46A Market Street, Manchester, in the
County of Lancaster, Engineer, RALPH RUPERT WOOD, of Marple Bridge, in
the County of Derby, Bleacher, and WALTER CARTER, of Marsden Square,
Manchester aforesaid, Carrier, 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 :-
Our invention relates to what are commonly termed re-starting injectors, in
which there is an opening in what is called the combining cone or nozzle, through
which fluid can have free vent as well as at the ordinary overflow, when the
injector has been stopped, or the jet has failed, and while it is automatically
re-starting itself; this outlet from the combining nozzle being so arranged as to be
closed by a selfacting valve when the jet is established, but which opens to give
free vent to get up the full velocity of the jet when it has failed, and is to re-start
again.
Our invention consists in the improved arrangement and construction of the parts
by which the injector is less costly to make and more effective in action.
The injector casing is made with the usual junctions for steam, water, overflow
and delivery, which may be flange junctions or the ordinary screw union junctions.
It is also constructed in two or three parts to be screwed or otherwise secured
together.
The steam nozzle is as usual made separate and is inserted at the steam branch
of the casing.
The first part of the combining nozzle is made solid with the casing, but may be
made separate and screwed or otherwise secured therein.
The second part of the combining nozzle is connected at its large end by radial
arms with a ring screwed upon its exterior to screw into the casing, the two parts
of which are at this point screwed or are otherwise secured together.
There is a space left between the first and second part of the combining nozzle,
which forms the supplementary overflow outlet, into a chamber formed within the
casing.
The under side of the ring, and a shoulder formed upon the exterior of the
second part of the combining nozzle are faced to form a valve seating for a disc
facing or valve made upon the end of a tube that can slide freely upon the
cylindrical exterior of the second part of the combining nozzle, and which valve
facing when moved against the seating upon the ring and shoulder upon the exterior
of the second part of the combining nozzle, will close the chamber, into which the
supplementary overflow first comes, but when this valve moves away from its
seating, the outlet from that chamber is opened and the liquid and steam can pass
out through the ordinary overflow chamber.
The valve tube has or may have a facing at both ends so that it will be right
when placed upon the exterior of the second part of the combining nozzle which-
ever end is up.
The ordinary overflow outlet is between the end of the second part of the
combining nozzle, and the receiving and discharging nozzles which are or may be
formed solid with the casing or separate therefrom and screwed or otherwise
secured therein.
}
Fig. 1 is a longitudinal section;
Fig. 2, is a cross section at A-B Fig. 1, and
Fig. 3 is a cross section through the second part of the combining cone, and th
ring that carries it at the point C-D Fig. 1.
The casing of the injector is made in two parts a, and a¹, to screw together nea
the line C D but may be made in three parts with the end for the steam junction
screwing into the other part of the casing.

page_text: b, is the steam nozzle which fits into the junction a*, upon the casing a, for
steam.
6', is the short connection for the steam supply pipe, and 6, the screw to unite
the pipe b', to the casing a, so that when screwed up tightly the steam nozzle b, is
held firmly in its correct position.
c, is the larger part of the combining cone formed solid with the casing a, but it
may be formed separate from the casing and screwed therein. When the cone c,
is solid with the casing the latter may be reduced in diameter, so that there will be
no cavity round the exterior of the nozzle c, if preferred.
The interior of the casing a, is screwed to receive a screwed ring c¹, which
carries by three radial branches c³, the lower part of the combining cone c³. The
under side of this ring c¹, and a shoulder c, are ground to form a seating for a
valve formed by a tube d, having a facing d', upon each end.
This tube valve can slide freely upon the exterior of the lower part of the
combining cone c³.
The tube d, has a valve or disc facing d', at each end in order that it may be
placed upon the cone c³, either side up.
c, is the outlet between the two parts of the combining cone c, and ³; e, is
the ordinary overflow outlet, and f, is the receiving or discharging cone or passage.
a², is the branch upon the casing a, for water.
a, is the branch on casing a', for overflow, and a*, is the branch for the delivery.
Each branch has a tube for connection with a pipe, and a union screw nut as
shown and as described in reference to the steam branch b, but flange junctions may
be used.
When the two parts a, and a', of the casing, are unscrewed and separated, access
is given to the valve and lower part of the combining conc.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is.
1. The combination of the nozzles of an injector, with the casing and a valve
for opening and closing the outlet from the supplementary overflow, substantially
as hereinbefore described and illustrated by the drawings.
2. The construction of the second part of the combining nozzle with a ring and
with valve facings, and its combination with a valve, sliding upon its exterior, and
with the casing of the injector, substantially as hereinbefore described and illustrated
by Figs. 1 and 3 of the drawings.
Dated this and dar of Auril 1891
PETER J. LIVSEY,
Agent.