Year: 1886

page_text: Date of Application, 29th July, 1886.
Complete Left, 29th Apr., 1887.
Complete Accepted, 31st May, 1887,
I, JAMES DIXON CHURCHILL, of 37, Alexandra Road, Finsbury Park, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention to be
as follows:
This invention relates to an improved construction and arrangement of apparatus
for regulating the supply of steam to steam engines, of the kind set forth in the
specifications of former Letters Patent granted to me dated 5th June A.D. 1880,
No. 2287 and 21st December A.D. 1880, No. 5362 whereby the said apparatus
rendered more compact and can be more economically constructed than heretofore
and its weight be considerably reduced.
According to this invention the frame or bracket that carries the auxiliary engine
that actuates the throttle or regulating valve of the engine to be controlled has formed
in one therewith, the bearing of the driving shaft the ports or passages, or a part
thereof, that distribute the motive fluid to the ends of the auxiliary engine, and the
liquid containing or brake cylinder or a part to which the same may be secured,
the said auxiliary engine being either pivotted to the said frame or bracket or made
in one therewith. In one arrangement the rear end of the cylinder of the auxiliary
engine is pivotted to the frame or bracket so as to allow of its adjustment to any
required angle. The pivotted end of the cylinder is connected to its seat by bolts the
heads of which take into circular slots or passages formed in the adjacent part of
the cylinder of the auxiliary engine. The steam passages to the respective ends
of this cylinder may in some cases communicate with the valve chest through the said
slots or passages or through one or more of them. In another arrangement the
pivotting of the cylinder of the auxiliary engine is dispensed with, the said cylinder
being then formed in one with the frame or bracket that carries the liquid containing
or brake cylinder, and the bearing of the driving shaft.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C.
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Regulating the Supply of Steam
to Steam Engines.
I, JAMES DIXON CHURCHILL, of 37, Alexandra Road, Finsbury Park, in the
County of Middlesex, 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 an improved construction and arrangement of apparatus
for regulating the supply of steam to steam engines of the kind set forth in the
specifications of former Letters Patent granted to me dated 5th June A.D. 1880,
No. 2287, and 21st December A.D. 1880, No. 5362, whereby the said apparatus is
rendered more compact and can be more economically constructed than heretofore, and
its weight be considerably reduced.
According to this invention the frame or bracket that carries the auxiliary engine
that actuates the throttle or regulating valve of the engine to be controlled has formed
in one therewith, the part that carries the driving shaft, the ports or passages, or a part
thereof, that distribute the motive fluid to the ends of the auxiliary engine, and the
liquid containing or brake cylinder, or a part to which the same may be secured, the
said auxiliary engine being either pivotted to the said frame or bracket or made in one
therewith. In one arrangement the rear end of the cylinder of the auxiliary engine
is pivotted to the frame or bracket so as to allow of its adjustment to any required
angle. The pivotted end of the cylinder can be connected to its seat by bolts, the
heads of which take into circular slots or passages formed in the adjacent part of
the cylinder of the auxiliary engine. The steam passages to the respective ends of
this cylinder may in some cases communicate with the valve chest through the said
slots or passages or through one or more of them. In another arrangement the
pivotting of the cylinder of the auxiliary engine is dispensed with, the said cylinder
being then formed in one with the frame or bracket that carries the liquid containing
or brake cylinder, and the bearing of the driving shaft.
Referring to the accompanying six sheets of drawings,
Fig. 1 represents partly in vertical section and partly in elevation so much as is
needful to illustrate an application of my invention to apparatus for regulating the
supply of steam to steam engines.
Figs. 2 and 3 are horizontal sections on the lines A, B, and C, D, respectively of
Fig. 1.
Fig. 4 represents partly in vertical section and partly in elevation a modified
arrangement of the apparatus.
Fig. 5 is an inverted plan partly in section showing a portion of the frame or bracket
that carries the auxiliary engine and other parts.
Fig. 6 is a transverse section on the line E, F, of Fig. 4.
Fig. 7 is a vertical section illustrating another arrangement.

page_text: Referring to Figs. 1, 2, and 3, 1 is the frame or bracket that carries the cylinder 2
of the auxiliary engine which actuates the throttle or regulating valve of the engine
to be controlled. 3 is a part that carries the driving shaft. 4 is a liquid containing
or brake cylinder. 5 is a part of the frame or bracket to which the cylinder 2 is
pivotted as hereinafter described. 6 is a steam chest between the part 5 of the frame
or bracket and the end portion 2* of the cylinder 2. 7, 7, are bolts, the upper ends
and heads of which take into an annular T shaped recess 9 in the end portion 2* of
the cylinder; they serve to connect the rear end of the cylinder 2 to the part 5 and
steam chost 6 in such a manner that the auxiliary engine may be turned or swivellod
about G, H, as a centre. 10 and 11 are steam ports in connection respectively with
passages 12 and 13. The passage 12 is in communication through a passage in the
steam chest, with a space 14 that communicates with one end of the cylinder 2 by a
port 15. The passage 13 communicates by another passage in the steam chest with
the annular Tshaped space 9 which is in communication by another passage 16 with the
front end of the cylinder as shown. 10* is an exhaust port in communication with
the atmosphere or a condenser. 17 is a removable screw-plug to admit of the insertion
of the bolts 7. 6*, 6*, are openings for the admission of steam to the steam chest 6.
18 is a slide valve; 19 its rod. This slide valve and its rod are operated by a lever 20
substantially in the manner set forth in the specifications of the hereinbefore mentioned
Letters Patent. The parts 1, 3, 4, and the ports or passages 12 and 13, are cast in one
piece of metal; the part in which the ports 10 and 11 are formed may also be in one
with the frame or bracket; but, in the arrangement shown, it is formed as a separate
block fitted into a recess formed in the part 5 of the frame or bracket.
In the arrangement illustrated in Figs. 4, 5, and 6, the cylinder 2 of the auxiliary
engine is pivotted to the part 5 of the frame or bracket as hereinafter described. The
cylinder 2 is pivotted at its rear end to the part 5 as follows:-It is formed with a
conoidal trunnion, plug, or pivot 21, that fits within a corresponding hole in the part 5
of the frame or bracket; it can be secured by any suitable means. In the example
illustrated, a prolongation of the trunnion is made as a male screw to receive a nut 22
that holds the cylinder in place, at the same time leaving it able to be swivelled.
10 and 11 are steam ports communicating each with one end of the cylinder 2 by a
passage 12 or 13. 10* is an exhaust port in communication with the atmosphere or
a condenser as before. 23, 23, 23, are ports or openings in the part 5 of the frame
or bracket, for admitting steam to an annular recess 24 in the trunnion 21. The
recess 24 is in communication by an opening or passage 25 with a spaco 26 that serves
as a steam chest. 18 is a slide valve operated as before. 3 is the part of the frame
or bracket that carries the driving shaft 3*, and 4 is the liquid containing or brake
cylinder also cast in one piece with the frame or bracket.
In the arrangement shown in Fig. 7, the frame or bracket, the cylinder 2 of the
auxiliary engine with its ports 12 and 13, the part 3 that carries the driving shaft
and one end or cover of the liquid containing or brako cylinder 4, are cast in one
piece. 6 is the steam cbest secured in place beneath the ports 10, 10*, and 11, by nuts
and bolts 26; but only one bolt and nut are shown in the drawings. 18 is a slide
valve operated as before. The passage 12 communicates with one end of the cylinder
by a port 15; the passage 13 communicates with the opposite end of the cylinder by
a passage (not shown) formed in the frame or bracket.
By making in one casting the part 3 that carries the driving shaft, the ports or
passages or part thereof for distributing the motive fluid to the ends of the auxiliary
engine, the liquid containing or brake cylinder or a part to which the same may be
secured and the main frame or bracket as hereinbefore described with reference to the
drawings, the main frame or bracket is rendered more compact, and can be more
economically constructed than heretofore has been usual, and its weight will be
considerably reduced as compared with that of arrangements previously adopted.
By pivotting the cylinder of the auxiliary engine to the frame or bracket in the
manner hereinabove described and shown in the drawings, the apparatus may be held
more firmly to the support that carries it than has been the case with arrangements
heretofore used, and both sides of the apparatus are rendered alike, thereby dispensing

page_text: with the necessity of making the apparatus either right-handed or left-handed
according to the position it is to occupy when in use.
Having now particularly described and ascertained the nature of the said invention,
and in what manner it is to be performed, I declare that what I claim is :-
1. In apparatus of the kind hereinabove referred to for regulating the supply of
steam to steam engines, a frame or bracket with part for carrying the driving shaft,
and the liquid containing or brake cylinder (or a part to which the same may be
secured) cast or formed in one piece of metal, the auxiliary engine being pivotted at
or near one of its ends substantially in the manner hereinabove described with
reference to and illustrated by Figs. 1 to 3 inclusive, or as described with reference
to and illustrated by Figs. 4 to 6 inclusive of the drawings annexed.
2. In apparatus of the kind hereinabove referred to for regulating the supply of
steam to steam engines, a frame or bracket with part for carrying the driving shaft, the
liquid containing or brake cylinder (or a part to which the same may be secured) and
the cylinder of the auxiliary engine cast or formed in one piece of motal, substantially
in the manner hereinabove described with reference to and illustrated by Fig. 7 of
the drawings annexed.
3. In apparatus of the kind hereinabove referred to for regulating the supply of
steam to steam engines, arranging the cylinder of the auxiliary engine to turn or
swivel in the frame or bracket upon a pivot or joint located at or near the rear end
of the said cylinder instead of at the side, substantially as hereinabove described.
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CA 1007