IMPROVE- MENTS IN INJECTORS."
Year: 1874

page_text: LETTERS PATENT to Francis William Webb, of Crowe, in the County
of Chester, Mechanical Engineer, for the Invention of "IMPROVE-
MENTS IN INJECTORS."
PROVISIONAL SPECIFICATION left by the said Francis William Webb
at the Office of the Commissioners of Patents, with his Petition, on
the 1st April 1874.
I, FRANCIS WILLIAM WEBB, of Crewe, in the County of Chester,
Mechanical Engineer, do hereby declare the nature of the said Inven
tion for "IMPROVEMENTS IN INJECTORS," to be as follows:-
23
23-
My improvements relate to and consist in an improved combination,
arrangement, and construction of injector, in which, inṣtoad of making.
what are termed the discharging and receiving.".concs or "nozzles
in two distinct parts, with a space or break between them to form an
overflow, the two nozzles or cones are made continuous, and without:
break or overflow. orifice. or chamber.
t.

page_text: I prefer to construct the body of the injector in two parts, one having
a junction for the water pipe and a branch for the steam pipe, and the
steam nozzle screw in it; the other part of the body containing the
discharging and receiving cones or nozzles, and having a cock or valve
screwed in it to start the injector to work.
The steam nozzle and branch pipe may be formed by bent tubing
coned at the end if desired.
My Invention further consists in combining and arranging the above
described injector when applied to locomotives with the clack box and
internal feed pipe, as described in the Specification of the Patent granted
to me, dated October 27th 1871, and numbered 2884.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Francis William Webb in the Great Seal Patent
Office on the 26th September 1874. .
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANCIS
WILLIAM WEBB, of Crewe, in the County of Chester, Mechanical
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of April, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Francis William Webb, Her special license
that I, the said Francis William Webb, my executors, administrators,
and assigns, or such others as I, the said Francis William Webb, my
executors, administrators, and assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make; use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN.
INJECTORS," upon the condition (amongst others) that I, the said Francis
William Webb, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause

page_text: the same to be filed in the Great Seal Patent Office within six calendar
montlis next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Francis William Webb, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement and the accompanying Drawings (that is to
say):-
My improvements relate to and consist in an improved combination,
arrangement, and construction of injector, in which, instead of making
what are termed the discharging and receiving "cones * nozzles
Or
"
in two distinct parts, with a space or break between them to form an
overflow, the two nozzles or cones are made continuous, and without
break or overflow orifice or chamber: .
I prefer to construct the body of the injector in two parts, one having
a junction for the water pipe and a branch for the steam pipe, and the
steam nozzle screwed in it; the other part of the body containing the
discharging and receiving cones or nozzles, and having a cock or valve
screwed in it to start the injector to work.
My Invention further consists in combining and arranging the above
described injector when applied to locomotives with the clack box and
internal feed pipe, as described in the Specification of the Patent granted
to me dated October Twenty-seventh, One thousand eight hundred and
seventy-one, and numbered 2884.
Fig. 1 is a longitudinal section; Fig. 2 is a cross section through
A, B, Fig. 1; Fig. 3, a cross section through C, D, Fig. 1; Fig. 4 is a
cross section through E, F, Fig. 1; Fig. 5 is a longitudinal section of a
part of the injector upon the line G, H, Fig. 1, taken in the direction
shown by the line I, J, Fig. 4.
a¹ is the steam pipe connected by a coupling with the branch a, and aª
is the steam nozzle screwed into the body part (6) of the injector. ' is
the water pipe, connected by a coupling with the body part 6, to which
the part 2 is cast for securing the injector in its place; c is that part
forming the combining and discharging nozzles, which is screwed into
the body part b; d is a branch part for the starting tap or valve screwed
into the part c; d' is the screw plug valve coupled with the shaft (d²)

page_text: ·
for actuating it by the coupling (d³) and cottars (d'), as shewn; d³ is
the pipe to convey away the steam and water blown through the starting
tap or valve d¹.
I have now particularly described the nature of my Invention and
the mode of carrying it into effect, and claim as my Invention, the
combination, arrangement, and construction of injectors as herein-before
described and illustrated by the Drawings; also the combination and
arrangement of such injectors with the clack box and internal feed pipe,
as described in the Specification of the Patent granted to me, dated
October Twenty-seventh, in the year of our Lord One thousand eight
hundred and seventy-one, and numbered 2884.
In witness whereof, I, the said Francis William Webb, have here.
"
unto set my hand and seal, this Twenty-fifth day of September,
in the year of our Lord One thousand eight hundred and seventy-
four.