IMPROVEMENTS IN INJECTORS EMPLOYED IN THE FEEDING OF STEAM GENERATORS WITH WATER, AND FOR OTHER PURPOSES
Year: 1876

page_text: LETTERS PATENT to John Morris and James Westley, both of Salford, in the
County of Lancaster, for the Invention of "IMPROVEMENTS IN INJECTORS
EMPLOYED IN THE FEEDING OF STEAM GENERATORS WITH WATER, AND FOR
OTHER PURPOSES."
Sealed the 9th September 1876, and dated the 11th March 1876.
"
PROVISIONAL SPECIFICATION left by the said John Morris and James
Westley at the Office of the Commissioners of Patents on the 11th March 1876.
JOHN MORRIS and JAMES WESTLEY, both of Salford, in the County of Lancaster.
IMPROVEMENTS IN INJECTORS EMPLOYED IN THE FEEDING OF STEAM GENERATORS
WITH WATER, AND FOR OTHER PURPOSES."
Our Invention relates to the injectors employed in the feeding of boilers or steam
generators, and for raising and forcing fluids for other purposes, and more particu-
larly to the adjustment of the parts by which the flow of water is regulated.
In our improved injector the steam supply pipe is coupled to a branch on the
steam nozzle pipe, which is provided with an inner adjustable spindle, by means of
usual. The lower end of the said
which the supply of steam is regulated as
nozzle pipe is fitted to slide in the body of the injector, in which is formed the
A screw thread is formed on the outside
water passage and chamber as is usual.
of the upper part of the said body, and a nut mounted on the nozzle pipe is formed
to engage with the said screw. The said nut is arranged to revolve on the said
pipe, but not to slide thereon, the arrangement being such as that when the said
nut is rotated the end of the nozzle pipe is caused to slide in the body of the
injector in one direction or the other, according to the direction of rotation of the
said nut, the passages for the flow of water being thereby enlarged or restricted as
required. For convenience in turning the said nut we prefer to form it with pro-
jecting handles covered with wood or non-conducting material. If preferred, the
said nut may be mounted on the body of the injector, and engage with a screw
thread formed on the said steam nozzle pipe.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said John Morris and James Westley in the Great Scal Patent Office on the
9th September 1876.
JOHN MORRIS and JAMES WESTLEY, both of Salford, in the County of Lancaster.
"IMPROVEMENTS IN INJECTORS EMPLOYED IN THE FEEDING OF STEAM GENERATORS
WITH WATER, AND FOR OTHER PURPOSES."
Our Invention relates to injectors employed in the feeding of boilers or steam
generators, and for raising or forcing fluids for other purposes, and more particu-
larly to the parts by the adjustment of which the flow of water is regulated.
In our improved injector the steam supply pipe is coupled to a branch on the
steam nozzle pipe, which is provided with an inner adjustable spindle, by means of
which the supply of steam is regulated as is usual. The lower end of the said
nozzle pipe is fitted to slide in the body of the injector, in which is formed the
water passage and chamber as is usual. A screw thread is formed on one part of
the said body, and a nut, mounted on the other part, is formed to engage with the
said screw thread. The said nut is arranged to revolve on the said pipe, but not to
slide thereon, the arrangement being such as that when the said nut is rotated the
end of the nozzle pipe is caused to slide in the body of the injector in one direction
or the other, according to the direction of rotation of the said nut, the passage for
the flow of water being thereby enlarged or restricted as required.
And in order that our Invention may be fully understood, we have supplied a
Drawing marked with letters of reference, to which we will now refer. In the said
Drawing one of our improved injectors is represented in vertical section. The said
injector consists of two principal parts A and B, the upper part containing the
steam nozzle and the lower part the water passages. The part A consists of three
parts a, b, and c connected together, the part c being the steam nozzle. The upper
part a is formed with a gland, in which works the screw spindle d, and the lower
end of the said part is tapped to receive the screwed part of the said spindle, and is
screwed into the part b. The said part b is formed with a branch and coupling e,
which is prepared for connection with the steam supply pipe. The upper end of
the steam nozzle c is screwed into the part b, and the cylindrical part of the nozzle
is turned and fitted to slide in a hole which is bored in the part B, the fit of the
two parts being made suitably good. A nut f is mounted on the upper part of the
said nozzle, the said nut being retained in position by means of an inner flanch g,
which occupies the space between the end of the part B and a collar which is
formed on the said nozzle, the arrangement permitting the said nut to revolve
freely at the same time that it is permanently attached to the part A, so long as the
A screw thread to suit the said nut
steam nozzle remains screwed into the part b.
is cut upon the part b. In the example selected for illustration the said nut is
provided with four handles h, k, by means of which it can be rotated, but if pre-
ferred the said nut may be formed as a hand wheel, or other arrangements for
rotating it may be provided. It will be readily understood that when the said nut
is turned in one direction the steam nozzle is slid further into the part B, thereby
contracting the passage for the flow of water, a contrary effect being produced by
turning the said nut in a reverse direction. The part B is furnished with a suitable
overflow valve i, and is suitably formed at to connect with the water outlet pipe,
and at to connect with the water inlet pipe. It must be understood that the
details of construction of the injector may be varied, the important feature being
the action of the nut f. If preferred the said nut may be mounted on the part B,
and act on a screw thread formed on the part A, or be otherwise arranged. The
inlet of steam is regulated by turning the spindle d, and the inlet of water by
turning the nut f.
Having now fully set forth and indicated the nature of our said Invention, we
would have it to be distinctly understood that we claim-
First. The combination and arrangement of parts, substantially as and for the
purposes set forth and indicated herein-before and by the accompanying Drawing.

page_text: And Secondly. The method of regulating the flow of water, substantially as herein-
before set forth and indicated.
In witness whereof, I, the said James Westley, for myself and on behalf of the
said John Morris, have hereunto set my hand and seal, this Fifth day of
September, in the year of our Lord One thousand eight hundred and
seventy-six.
JAMES WESTLEY. (L.S.)