Improvements in Regulators for Steam Engines.
Year: 1895

page_text: Date of Application, 10th Dec., 1895
Complete Specification Left, 17th July, 1896-Accepted, 12th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Regulators for Steam Engines.
I, DAVID BAILEY, of Thompson Street, Halifax, in the County of York,
Weaving Overlooker, do hereby declare the nature of this invention to be as
follows:-
According to this invention the governors are by compound levers connected
with a shield partly covering a face wheel, the periphery of which wheel is toothed,
and these teeth gear with teeth cut in the nut on the ordinary valve rod. On the
stud of the face wheel is a cross arm, to each end of which is mounted a catch or
pawl, and attached to or forming part of the cross arm, is a rod connected to the
ordinary cross head of the engine, or to any other part which will give a regular
rocking motion to the rod, and consequently to the cross arm and catches or pawls.
The action is as follows:-When the governors are in motion and move either
up or down, the compound levers are actuated, and these levers move the shield so
as to pass under one or other, or both of the catches or pawls. When the shield is
under both catches or pawls, though the latter are moving, no motion is imparted
to the face wheel. If the shield is moved from under one of the catches, then such
catch will at its forward stroke engage with the teeth in the face wheel, and the
latter will be moved part of a revolution; the toothed nut will also be moved by
the gear teeth, and the length of stroke of the valve rod shortened or lengthened,
according as one or other of the catches or pawls is in operation. The amount of
movement imparted to the face wheel, and consequently to the valve rod is
regulated by the position of the shield, which is as described controlled by the
governors.
Dad... of Draamber 1805
BRIERLEY & HOWARD,
Penny Bank Chambers, Halifax, Agents for the Applicant.
Improvements in Regulators for Steam Engines.
I, DAVID BAILEY, of Thompson Street, Halifax, in the County of York,
Weaving Overlooker, 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 improvements in regulators for steam engines to be
applied to and connected with the governors in such a manner that when the engine
runs beyond a given or indicated speed, and consequently the governor balls fly
outwards, the regulator partly shuts off or lessens the supply of steam to the engine,
and so the speed is reduced. If the engine runs slower than the required speed,
the appliances open the valves and increase the supply of steam, so that by the
improved regulator which is both simple and inexpensive to construct, the engine
can be run at a given uniform speed or with very little variation.

page_text: Suen being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings,
in which :-
Fig. 1 is a side elevation of the improved regulator.
Fig. 2 is a plan view of Fig. 1.
Figs. 3 and 4 are details.
According to this invention the governors are connected to the valve rod 1 in the
ordinary manner, and the said ordinary valve rod 1 is by arm 2 and rod 3 connected
to one end of a compound lever 4 free to turn on the stud 5 fixed in the bracket 6.
One arm of the lever 4 is provided with a counterbalance weight 7 and the
lower end of the other arm 8, which works in the guide 9 fixed to the bracket 6,
terminates in a toothed are 10 (see Fig. 3). The teeth of the arc 10 engage with
the teeth 11 formed in the periphery of the shield 12, which is carried on the
stud 13 just above and clear of the face wheel 14, the periphery of which is
toothed, and these teeth gear into the teeth in a pinion 15 on the boss or collar 16
which forms part of the ordinary valve rod 1. Part of the outer portion or
circumference of the shield 12 is cut away, leaving the opening 18" (see Fig. 4).
The collar or boss 16 has flat sides (see Fig. 2) so that though it is free to slide
up and down through the pinion 15, will when turned, also turn the collar or boss 16
which is chased with right and left handed "she" threads at the top and bottom,
and the valve rod 1 which is formed in two parts is also chased with right and
left handed threads, the upper portion of the valve rod 1 being in the upper end of
the collar or boss, and the lower portion is received in the lower end of the collar
or boss 16. On the stud 13 of the face wheel 14 is a cross arm 17, to each end of
which is mounted a catch or pawl 18. The cross arm 17 is by toggle joint 19 and
escapement spring and nut 20 connected with a rod 21, the other end of which is
attached to the ordinary cross head of the engine, or to any other part which will
give a regular rocking motion to the rod 21, consequently to the cross arm 17 and
catches or pawls 18.
The bracket 6 is carried on the pillar 22 on the engine or engine bed.
The actiou is as follows:-When the engine and governors are in motion, and
say the latter fly outwards through the engine running too fast, then the valve
rod 1 is pulled upwards, the arm 2 and rod 3 are raised and the counterbalance
weight 7 turns the lever 4 on its fulcrum 5, and the teeth of the are 10 gives a
partial turn to the shield 12, and the opening 18* is brought under one of the catches
or pawls 18, and as the latter has a rocking motion imparted to it, it engages with the
teeth of the face wheel 14 and moves the latter part of a revolution. The wheel 14
causes its pinion 15 to move, and with it the collar or boss 16, which screws up and
shortens the valve rod 1, and partly cuts off the supply of steam and draws down
the governor balls.
Should the engine run too slowly and the governor falls, then the opening 18ª is
moved under the other pawl 18, and the wheels 14. 15 are turned in the opposite
direction, the valve 1 is lengthened, and the supply of steam increased.
When the engine is running at an uniform normal speed the shield is under
both catches or pawls 18. 18, and no change of position of the parts takes place,
the catches or pawls being rendered inoperative.
23 is a compensating spring on the rod 3 to prevent jar or breakage of the
parts.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
(1.) The general construction, arrangement, and combination of parts constituting
the improved regulator, as and for the purpose herein described, and substantially
as illustrated by Sheets 1 and 2 of the annexed drawings.
(2.) The compound lever 4 and toothed arc 10, the toothed shield 12, wheel 14,
cross arm 17, and catches or pawls 18, 18, all in combination, as and for the

page_text: purpose herein described, and substantially as illustrated by Sheets 1 and 2 of the
annexed drawings.
(3.) The cross arm 17, catches or pawls 18, 18, shield 12, and wheel 14, all in
combination, as and for the purpose herein described, and substantially as illustrated
by the annexed drawings.
DAVID BAILEY,
By his Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.