AN IMPROVED STOP MOTION FOR STEAM ENGINES
Year: 1884

page_text: I BENJAMIN DYSON of Ripponden in the county of York do hereby declare
the nature of my Invention for AN IMPROVED STOP MOTION FOR STEAM ENGINES,”
to be as follows:-
The object of my invention is to construct an apparatus in connection with the
equilibrium valves of steam engines whereby in case of accident the engine can be
stopped instantly in any room of the mill.
prolong the spindle of the valve, and chase a thread upon it and connect to it
a lever, formed so as to leave a square receptacle within it, a nut encircles the
thread of the spindle with studs on each side, the studs work in slots of the
lover, the lever is fulcrumed to a bracket, at the top of the valve spindle is a bevel
wheel, gearing into a second bevel wheel, on another shaft at right angles, a box is
attached to the bearer or bracket and contains a coiled spring one end of which is
attached to the shaft, and the other to the box, a square collar is placed on the
shaft next the spring box, then I place a bracket formed with sufficient room to
carry a slide, this slide is connected to the different rooms of the mill, outside the
bracket is a catch wheel, and a balance hand wheel at the end of the shaft; the
action is as follows, on turning the valve or hand wheel the spring in the spring
box is wound up, and the valve is lifted into position for working in raising, by
means of the connections in the mill, the spring is released and screws down the
valve thus stopping the engine.
:
I BENJAMIN DYSON of Ripponden near Halifax in the county of York Engineer
do hereby declare the nature of my said Invention for AN IMPROVED STOP MOTION
FOR STEAM ENGINES" and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement :-
The object of my invention is to construct an apparatus in connection with the
equilibrium valves of steam engines, whereby in caso of accident, the engine can be
stopped instantly in any room of the mill.

page_text: Fig. 1 is a front elevation of my invention.
Fig. 2 is a plan of Fig. 1.
Fig. 3, is an end elevation in section at A. B.
Fig. 4, shews ratchet wheel and ratchet.
Fig. 5, shews notched, disc, and catch in lieu of square collar and slide.
The object of my invention is to construct an apparatus in connection with the
equilibrium valves of steam engines, whereby in case of accident the engine can be
stopped instantly in any room of the mill, C is the spindle of the equilibrium valve,
which is prolonged or connected to the spindle C', which has a thread upon it, and
passes through the square D in the lever E, to which it is attached by means of a
nut F, which encircles the thread of the spindle, and by its studs G, passing
through the slots H, in the lever E, the lever E is fulcrumed in the upright
bracket J at J and can be used for opening or closing the valve when required
in the Engine house. At the top of the valve spindle is a bevel wheel K, which is
mounted on a feather or koy, so that the spindle C may work longitudinally through
it the wheel K gears into a second bevel wheel K', on another shaft L at right
angles, a circular box M, is attached to the bearer or bracket, and contains a coiled
spring one end of which is attached to the shaft L, and the other to the box M, n
square collar N is placed on the shaft L, next to the spring box M, then I place a
bracket N', formed with sufficient room to carry a slide P, the slide P is connected
to the different rooms of the mill, outside the bracket N is a catch R, and catch
wheel R', and a balance or hand wheel S, at the end of the shaft L, the action is
as follows; on removing the slide P or its equivalent and turning the balance or
hand wheel, the spring in the spring box is wound up, and the valve is lifted into
position for working, the slide P is then replaced on the square-N, on raising the
slide by means of the connection in the mill, the spring is released, and the spindle C
serews down through the nut F the valve, thus stopping the engine, in lieu of the
slide P, and square nut N, the notched disc and catch may be used see Fig. 5.
Having now particularly described and ascertained the nature of my invention,
and the manner in which the same is to be performed, I declare that what
I claim is:
1. The employment of catch or finger connected to the different rooms of a mill
which when knocked, releases a spring which screws down the equilibrium valve
and stops the engine, as shewn and described.
2. The general arrangement for acting upon the equilibrium valvo. of steam
engines, as shewn and described, or any such equivalent.
Dated this sightówuch lov at 1004