and Feeding Steam Boilers.
Year: 1886

page_text: and Feeding Steam Boilers.
I, CHARLES SPENCER MADAN, of Mansfield Chambers Saint Ann's Square Man-
chester, Engineer, do hereby declare the nature of my invention for IMPROVEMENTS IN
INJECTORS FOR RAISING AND FORCING FLUIDS AND FEEDING STEAM BOILERS to be as
follows:-
My Invention relates to an improved combination and construction of Injectors,
rendering them capable of delivering the fluid acted upon at a much higher tempera-
ture than is usual in the ordinary apparatus. My Invention consists in dividing the
combining nozzle of an Injector into two or more portions, leaving spaces between the
portions, the whole being so arranged that when the nozzles are in their places the
divisions in the combining nozzle are in a chamber from which the air is permanently
excluded during the working of the Injector. The jet then behaves as if the com-
bining nozzle were continuous.

page_text: Improvements in injectors for Raising and forcing Fluids
and Feeding Steam Boilers.
I, CHARLES SPENCER MADAN of Mansfield Chambers, Saint Ann's Square Man-
chester in the County of Lancaster, Engineer 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 :-
My invention relates to an improved combination and construction of Injectors
rendering them capable of delivering the fluid acted upon at a much higher tempera-
ture than is usual in the ordinary apparatus.
My invention consists in dividing the combining nozzle of an Injector into two or
more portions, leaving spaces between the portions, the whole being so arranged that,
when the nozzles are in their places the divisions in the combining nozzle are in a
chamber from which the air is permanently excluded during the working of the
Injector the jet then behaves as if the combining nozzle were continuous, and when
working is interrupted, the Injector will start more easily and promptly than is the
case with other forms of Injectors.
:
The construction will be best understood by reference to the accompanying drawings,"
in which the figures are longitudinal sections through the centre of three different
arrangements of my improved Injector; similar letters refer to similar parts in all
of these figures.
A. A. A. is the body or casing provided internally with suitable seatings for the
various parts, B is the steam nozzle, C the combining nozzle, D the delivery nozzle.
The novelty of my improved Injector consists in the construction and location of
the combining nozzle C, this may be either made in one piece, or divided into two or
more parts as at C C in Fig. 1, one of which C is preferably made solid with the
body or casing, and the other C adapted to be removed when required.
The combining nozzle C when formed in one piece, as in Figs. 2 and 3, may be
perforated by one, two, or any suitable number of holes c. c., in which case it may
advantageously be made removable in its entirety; or it may be both divided and
perforated as shewn dotted in Fig. 1.
The divided or perforated, or, divided and perforated combining nozzle may be
placed either in a permanently closed chamber R as in Figs. 1 and 2; or it may be
placed in a chamber permanently separated from the Overflow O, but in free.com-
munication with the liquid connection L as in Fig. 3.
Injectors constructed as shewn in Figs. 2 and 3 may be started by simply turning
on full steam, when the jet is at once established, and on working being interrupted
re-starting is greatly facilitated by the relief afforded to the jet by the said divisions
or perforations cc of the combining nozzle C. the jet when established behaves
precisely as if the said divisions or perforations did not exist, and the combining nozzle
was continuous, but has nevertheless the advantage of delivering its liquid at a higher
temperature than is the case with continuous combining nozzles. When it is desired

page_text: that the Injector be made capable of lifting it's liquid from a lower level than that at
which it is fixed an ordinary lifting attachment E may be added to the Injector proper,
having a seating e, and corresponding seating b, on the steam nozzle B which forms the
steam valve.
Having now particularly described and ascertained the nature of my invention and
in what manner the same is to be performed, I declare that what I claim is :-
(1.) In Injectors the hereinbefore described construction and use of a combining
nozzle divided into two or more parts, or perforated by one or more holes, or both
divided and perforated and placed in a permanently closed chamber.
(2.) In Injectors the hereinbefore described construction and use of a combining
nozzle divided into two or more parts, or perforated by one or more holes, or both
divided and perforated, and placed in a chamber permanently separated from the over-
flow, but in full communication with the liquid connection.
CHARLES SPENCER MADAN.