Improvements in Injectors for Raising and Forcing Water and other Liquids.
Year: 1889

page_text: Date of Application, 7th Oct., 1889
Complete Specification Left, 13th Jan., 1890-Accepted, 15th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Injectors for Raising and Forcing Water and
other Liquids.
JAMES ASHTON FLETCHER SAMUEL FLETCHER JACKSON FLETCHER Brass Founders,
Borough Brass Works Ashton-under-Lyne in the county of Lancaster do hereby
declare the nature of this invention to be as follows :-
:-
The object of our invention is to improve the construction of injectors and to
render them automatic in their action without sliding nozzle, automatic valve, or
casing dividing the first or lifting overflow from the second or ordinary overflow; the
terms first and second overflow in automatic injectors are well understood. We form
our injector with the usual, steam, lifting, combining, and delivery nozzles and attain
our injecting power whilst the outlet from the first water or lifting cone is in
communication with the chamber surrounding the outlet end of the combining cone
and the inlet end of the injecting cone or delivery nozzle, hitherto the first or lifting
overflow has been entirely shut off from the ordinary overflow chamber immediately
the injector has started either by automatic valves or a closed casing; we keep the
two chambers in continuous communication both delivering their lifted and combined
fluid into one and the same chamber and do not separate them by either valves or
casings in any way either before or after the injector is at work.
It is obvious to maintain our injected column we must exclude the atmosphere from
being drawn into the instrument we therefore attach a valve on the injector overflow
outlet which automatically opens with a rush of steam or water from the instrument
and automatically closes when such supply ceases or a vacuum is maintained in the
casing.
We can if necessary, that is in instances where the water is liable to contain foreign
substances place a cock valve or other opening & closing device between the injector
and the aforesaid vacuum valve so that when the injector is started and at work such
cock or valve can be closed and the automatic vacuum valve aforesaid opened or taken
away for cleansing or repairs whilst the injector is at work.
The vacuum valve or cock aforesaid need not be screwed directly on the injector
casing but may be in communication thereto by pipes or fittings.
Date 1000
JAMES ASHTON FLETCHER.
SAMUEL FLETCHER.
JACKSON FLETCHER.
COMPLETE SPECIFICATION.
Improvements in Injectors for Raising and Forcing Water and
other Liquids.
JAMES ASHTON FLETOHER SAMUEL FLETCHER JACKSON FLETCHER Brass Founders
Ashton under Lyne in the County of Lancaster, do hereby declare the nature of this
invention and in what manner the same is to be perforined, to be particularly described
and ascertained in and by the following statement:—
The object of our invention is to improve the construction of injectors, and to
render them automatic in their action without sliding nozzle, automatic valve, or
casing dividing the first or lifting overflow from the second or ordinary overflow;
the terms first and second overflow or first and ordinary overflow in automátic
injectors are well understood!
We form or construct our injector with the usual steam, lifting, combining and
delivery nozzles, and attain our injecting power whilst the outlet from the first water

page_text: or lifting cone is in communication with the chamber surrounding the outlet end
of the combining cone, and the outlet end of the injecting cone or delivery nozzle.
Hitherto the first or lifting overflow has been entirely shut off from the ordinary
overflow chamber immediately the injector has started either by automatic valves or
a closed casing.
We keep the two chambers in continuous communication both delivering their
lifted or combined fluid into one and the same chamber, and do not separate them..by
either valves or casings in any way, either before or after the injector is at work.
It is obvious to maintain our injected column we must exclude the atmosphere from
being drawn into the instrument; we therefore attach a valve on the injector overflow
outlet which automatically opens with a rush of steam or water from the instrument
and automatically closes when such supply ceases or a vacuum is maintained in the
casing,
We can if necessary, that is in instances where the water is liable to contain
foreign substances, place a cock valve or other opening & closing device, between the
injector and the aforesaid vacuum valve so that when the injector is started and
at work such cock or valve can be closed and the automatic vacuum valve afore-
said opened or taken away for cleansing or repairs whilst the injector is at work.
The vacuum valve or cock aforesaid need not be screwed directly on the injector
casing but may be in communication thereto by pipes or fittings.
The annexed drawing fig. 1 shows a sectional elevation of our improved form of
injector for working with live steam, fig. 2 is a plan in section of fig. 1 through A.B.,
our injector for working with exhaust steam is on the same principle excepting
that the sizes are modified to allow for difference in steam and water supply, part
marked on the drawing is the first or lifting overflow, part D is the ordinary
injecting overflow, by reference to the drawing it will be observed these overflows
both lead freely to the overflow chamber and branch E without interruption either
by division in the casing or automatic valve, delivering water into chamber E: to
overflow branch E we attach a vacuum or automatic valve G secured to casing F by
a union nut & nipple H H, this union nut, nipple or ring enables us to keep the automatic
valve always in an upright position irrespective of the position of the injector, so that
the loose valve J can always fall to its seating by gravitation aided by the vacuum.
formed in the injector, or we may place a light spring between valve J and nut K
to press the valve sufficiently to its seat so that the power of the injector may
force it away whenever necessary, or the spring may be inserted in the space
bored for the spindle in the put K the other parts of the injector are of the
ordinary principal, L being the steaming nozzle, M the lifting nozzle, N the com-
bining nozzle, O the delivery nozzle, the union nuts and tails P are sometimes
substituted for flanges so also may the union nut H connecting the overflow valve G.
Having now particularly described the nature of our said invention and in. what
manner the same is performed; we would have it clearly understood that we are
aware vacuum, snifting, or hand valves or cocks have already been attached to the
overflow outlets of injectors, but such valves & cocks have not been in communication
directly with the first lifting overflow as described in our invention we declare
that what we claim is as follows:-
Firstly. Constructing injectors in such a manner that the first and second overflows
deliver into the same chamber, branch, or casing, and such overflows are not
separated by valves, partitions or other devices either when the injector is starting or
at work.
:
Secondly. Constructing and working injectors without division between the first.
and second overflows either permanent or intermittant.
Thirdly. Cutting down slitting or drilling holes in divisions or taking out automatic
valves existing in present injectors so that the two overflows are in constant com-
munication to an automatic or hand valve or cock or other opening & closing device
on the overflow outlet.
Fourthly. An automatic or hand valve or cock or other opening and closing device

page_text: arranged so as to close up the first or lifting overflow C and the second or ordinary
injector overflow D simultaneously.
Fifthly. The arrangement of an automatic valve as described connected to the
injector body by a union coupling, nut, flange, tube or other suitable arrangement in
such a manner that the valve J or other opening or closing instrument will always
gravitate to its seat or bearing.
Sixthly. The arrangement of injectors feeding boilers by exhaust or live steam
substantially and as set forth in the accompanying drawings and this specification.
Dated this Third day of January 1890.
JAMES ASHTON FLETCHER.
SAMUEL FLETCHER.
JACKSON FLETCHER.