Governing Appliance for Steam Engines, Water Wheels, and such like Apparatus.
Year: 1896

page_text: Date of Application, 16th Apr., 1905
Complete Specification Left, 18th Jan., 1897-Accepted, 10th Apr., 1897
Complete Specification Left, 18th Jan., 1897-Accepted, 10th Apr., 1897
Magneto Electric Governing Appliance for Steam Engines, Water
Wheels, and such like Apparatus.
I, REGINALD PAGE WILSON, of 68, Victoria Street, Westminster, in the County
of London, Consulting Engineer, do hereby declare the nature of this invention
to be as follows:-
The object of my invention is to provide a simple and reliable appliance for the
automatic regulation and controlling or governing of steam engines, water wheels,
and other apparatus of kindred nature.
In carrying out my invention I utilise the principle that when a disc or closed
conductor of manganin copper or other suitable metal is rotated in a permanent and
constant magnetic field a reactive effect on that field is produced which is directly
proportional to the speed at which the said disc is rotated, and conversely when a
metallic disc as described is rotated at constant speed in a magnetic field of varying
intensity the reactive effect upon the field varies in direct proportion to the
variations in its intensity.
I apply and adapt this principle for the purpose of regulating the admission
of steam or other motive agent to the engine or apparatus in the following
manner.
I mount the metallic disc upon a shaft carried in suitable bearings and driven at
any required speed by extraneous power. For producing the magnetic field in
which such disc must run I employ in conjunction with the disc arrangement one or
more permanent or electro-magnets, (preferably of the horse-shoe type and
embracing a part of the disc,) carried upon a rocking lever or oscillating structure of
appropriate kind mounted upon the same shaft as the disc or otherwise conveniently.
The said structure is adequately balanced by spring or weight action and compen-
sated for temperature variations.
As the speed of the driven disc varies the magnetic field is directly affected
thereby, and therefore the position of the rocking lever and its magnetic device will
be proportionately and correspondingly changed. The movement of the rocking
lever or rather the force which thus changes its position is transmitted through the
medium of suitable connections such as a cord and pulley or other power trans-
mission gearing of any convenient type and utilised to control the admission of
steam, water, or other motive power by either the throttle or the expansion valve
or equivalent regulating device, to the engine or apparatus, thus automatically
governing the speed of same with great accuracy.
In cases where electrical energy is available, in conjunction with the above described
appliance a relay may be used whereby increased power and considerable saving in
energy may be effected.
J. C. CHAPMAN, C.P.A.,
Agent.

page_text: COMPLETE SPECIFICATION.
Magneto Electric Governing Appliance for Steam Engines, Water
Wheels, and such like Apparatus.
I, REGINALD PAGE WILSON, of 68, Victoria Street, Westminster, in the County
of London, Consulting 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 :-
The object of my invention is to provide a simple and reliable appliance for the
automatic regulation and controlling or governing of steam engines, water wheels,
and other apparatus of kindred nature.
In carrying out my invention I utilise the principle that when a disc or closed
conductor of manganin copper or other suitable metal is rotated in a permanent aud
constant magnetic field or the converse a reactive effect on that field is produced
which is directly proportional to the speed at which the said disc is rotated, and
conversely when a metallic disc as described is rotated at constant speed in a
magnetic field of varying intensity the reactive effect upon the field varies in direct
proportion to the variations in its intensity.
I will now fully describe iny invention referring in so doing to the accompanying
drawings in which
Fig. 1 is an elevation, and Fig. 2 a central cross section partly in elevation of one
form of my appliance.
Figs. 3 and 4 are transverse sections also partly in elevation of two modified
forms thereof embodying the same principle.
In all these figures the same letters of reference indicate the same or analogous
parts.
In applying and adapting in practical manner the principle above referred to for
the purposes of regulating the admission of steam or other motive agent to the engine
or apparatus, I proceed as follows.
Referring first to Figs. 1 and 2, I mount the metallic disc D upon a shaft S
carried in bearings a a upon a fixed standard A, and to the shaft I fix a pulley P
which is driven at any required speed by extraneous power. For producing
the magnetic field in which such disc must run, I employ in conjunction there-
with one or more permanent or electro-magnets preferably of the horse-shoe
type and embracing a part of the said disc. In Fig. 2 I have shown one
. electro-magnet M which is suitably connected and energised and one permanent
magnet M so arranged. These. are both mounted upon and carried by a rocking
lever or oscillating structure of appropriate kind such as the wooden circular
frame Fillustrated, and this is mounted by a hollow sleeve f upon the same
spindle S as the disc D or otherwise conveniently, but in such manner that the
magnet frame F is free to turn independently of the disc spindle S. The said
structure F is adequately balanced by a spring as at C or by weight action, and it
is compensated for temperature variation in known manner." In this case the power
is transmitted by the vertical spindle T coupled in any suitable manner to the
frame F so as to partake of its movements.
Referring to the modified arrangement of Fig. 3, the disc D is supported and
mounted upon and driven direct by the engine crank shaft, or it may be by a clock
spindle S. The magnet-carrying frame F is arranged substantially as before
described, but its hollow spindle f is mounted with ball bearings upon the
fixed standard spindle S', and the power is taken off by means of the arm or
coupler T.
A horizontal disposition of the parts is shown in Fig. 4, the oscillating structure
or magnet frame F being suspended by the adjustable stirrup G from a cross bar H

page_text: supported by the frame A; the disc D is driven through the gear wheels s & and
shaft S by pulley P, and the power is transmitted by a wheel trolling upon an
inclined plane t' fixed to the head of the power transmitting spindle T whereby the
throttle valve or the like is actuated.
The operation of all the above described devices is the same and as follows.
As the speed of the driven disc D varies, the magnetic field is directly affected
thereby, and therefore the position of the oscillating structure F and its
magnets M M will be proportionately and correspondingly changed, that is to say,
it will move for a certain distance. This movement, or rather the force which
thus changes the initial position of the frame F, is transmitted through the medium
of suitable connections such as the spindle T in any of the arrangements shown, or
it may be a cord and pulley or other power transmission coupler or gearing of any
convenient type, and utilised to control the admission of steam, water, or other
motive power by either the throttle or the expansion valve or equivalent regulating
device, to the engine or apparatus, thus automatically governing the speed of same
with great accuracy and sensitiveness.
In cases where electrical energy is available, in conjunction with the above
described appliance a relay may be used whereby increased power and considerable
saving in energy may be effected.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
1. For governing steam engines, water wheels and such like apparatus, a magneto-
electric appliance such as is above referred to consisting essentially of a rotating
metallic disc or closed electric conductor suitably driven in combination with
magnets of the kind specified carried upon an adjacent oscillating structure
adequately balanced, and a power transmitting device or coupler, the whole being
arranged or adapted to operate and transmit power substantially as herein described
and illustrated in the drawings.
2. The several arrangements of magneto-electric governing appliance for the
purposes stated, substantially as described in reference to and shown respectively in
Figs. 1 and 2, Fig. 3, and Fig. 4 of the drawings.
Dated this 16th day of January 1897