Improvements in Injectors
Year: 1890

page_text: Date of Application, 12th May; 1890-Accepted, 14th June, 1890
Improvements in Injectors;
A communication: from abroad by LOUIS SCHUTTE, of Philadelphia, in the County' of
Philadelphia, State of Pennsylvania, United States of America.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E.,. of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street,, Manchester, both in
the County of Lancaster, and 323, High Holborn, in the County of Middlesex, Civil
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:-
This invention relates to that class of jet' apparatus which comprise as the leading
elements an actuating-nozzle, a combining-tube in which the actuating-fluid' and the
fluid to be moved are brought in contact,, and a discharge-tube expanding, in the
direction of the delivery.
The objects of the present invention are,, first, to provide the instrument. with such
inlet and outlet passages and means for attaching pipes thereto in. a. variety of
positions and directions that the attachment of the instrument is greatly facilitated,
the use of extra elbows avoided, and space economised ;, second,, to provide improved.
facilities for the ready adjustment of the instrument to the performance. of the
particular duties required, and to admit of these adjustments being effected by
unskilled labour. without the. possibility, of placing, the parts in an inoperative
position.
In the accompanying drawing, the Figure represents a longitudinal central section
through a steam-injector having the improvements incorporated therein..
Referring to the drawing:
A represents the body of the instrument, B the nozzle for the actuating-fluid, C'the
combining tube or nozzle, and D the discharge-tube. With the exception of the
peculiarities hereinafter described, the parts are of ordinary construction and arrange-
ment, the nozzle B being arranged to deliver the actuating-fluid centrally into and
through the mixing tube. C, which in turn delivers through the tube D' in the
direction indicated by the arrow.
In order to adapt the instrument for the convenient application of the discharge-
pipe in different positions, as may be required under different circumstances, the
body A is provided at one end with the two delivery-openings, E and E', having their
axes at right angles to each other the first passing through the side of the body and
the second passing through its end directly opposite the discharge-tube D. The two
openings are made of equal diameter and threaded alike, in order that one or the
other may be closed at will by means of a plug G provided for the purpose. The
discharge-pipe may be screwed into either one of the openings, as circumstances may
demand, and the other opening closed by the plug.
In order to permit the application of the steam-supply pipe in different positions,
there are provided, at the receiving end of the apparatus, two internally-threaded
openings H and H¹, one in the end and the other in the side. These openings are of
equal diameter and threaded alike, so that the steam-supply pipe may be inserted in
the one or the other, as occasion requires. A plug I is provided for the purpose of
closing one or the other of these openings, as required.
By providing the instrument with the two openings for the receiving-pipe and the
two openings for the discharge-pipe, and with the plugs adapted for transposition, as
described, the same is adapted for ready attachment in all, or nearly all, positions
which will be encountered, at the same time avoiding the employment of the extra
elbows and other connections which are frequently demanded by the ordinary con-
struction, and which are for many reasons objectionable.

page_text: In order to permit the adjustment of the instrument for the performance of its
duties under different conditions, a reversible spindle J is provided which may be
threaded into the plug 1, or into other suitable support. This spindle has its two
ends of different diameters, and is provided with a central collar and screw-threads a
on both sides of the collar, so that it may be turned end for end at will, and screwed
into position with one or the other of its ends projecting into the actuating-nozzle B,
as occasion may require. By the use of the larger end, the steam-passage through
the nozzle B is reduced. When a large supply of steain is demanded, the spindle may
be entirely removed.
It will be perceived that by means of the removable and reversible spindle three
distinct adjustments may be given the instrument as regards the quantity of the steam
supply. It will also be observed that these adjustments may be effected by unskilled
persons without danger of rendering the instrument inoperative.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
1. In an injector having a steam-nozzle, a mixing tube and a discharge-tube, an
external body enclosing and sustaining said parts, said body provided at its discharge
end with duplicate threaded delivery-openings at right angles to each other, and with
a plug changeable from one to the other of said openings at will.
2. In an injector containing a steam-nozzle, a mixing-tube, and a discharge-tube,
an internal body enclosing and sustaining said parts, said body provided at its end
with duplicate openings at right angles to each other, and with a plug changeable
from one to the other of said openings at will.
3. In an injector or jet apparatus having a combining and a discharge tube, a
reversible spindle having its two ends of different sizes.
4. The spindle J, having the central collar and the screw-threads, in combination
with a plug or support adapted to permit the reversing of the spindle therein.
LM.. 1800
WM. P. THOMPSON & Co.,
Agents for the Applicant.