Improvements in Steam Engines.
Year: 1892

page_text: Date of Application, 4th Feb., 1892
Complete Specification Left, 11th June, 1892-Accepted, 23rd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Steam Engines.
I, ROBERT RIPLEY of Holme Mills, near Burton, in the County of
Westmoreland, Engineer, do hereby declare the nature of this invention to be
as follows:
The object of this invention is that in case of breaking of the spring or spindle
connected with the fork lever, a swan necked or hollow ended lever and weight
connection operates and closes the appliance, knocks the valves, and the engine
is stopped automatically.
The invention is applicable to steam engines generally, whether compounded
or not.
COMPLETE SPECIFICATION.
Improvements in Steam Engines.
I, ROBERT RIPLEY, of Holme Mills, near Burton, in the County of West-
morland, 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 this invention is that in case of breaking of the spring or spindle
connected with the fork lever the appliance knocks a swan necked or hollow ended
lever and weight and by connections operates and closes the valves and the engine
is stopped automatically.
The invention is applicable to steam engines generally, whether compounded
or not.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings
forming a part of this Specification in which
Fig. 1 is a front elevation shewing the improved apparatus.
Fig. 2 is a similar view to Fig. 1 shewing the position assumed by the apparatus
when the engine is stopped after "running away."
Fig. 3 is an end elevation of Fig. 1.
At 1 is the shaft from the governors on which is fastened the arm or short
lever 2 to outer end of which is attached the upright knocking off rod 3 on
which is the adjustable finger 4. Soon as any undue increase of speed of the
engine is attained, either from breakage of valve spring, valve spindle or other
cause the governor shaft 1 makes a partial turn or part revolution whereon the
arm or lever 2 lifts the upright rod 3 and thereby brings the finger 4 in contact
with the bent, or cranked portion 5 of the rod 6 which is free to turn on its
fulcrum or joint at 7 in bracket 8 and as 4 turns 5, the other or lower and hooked
end of the rod 6 is withdrawn or slipped out of the hole 9 of the swan necked
lever 10 which is by the weight 11 turned on its fulcrum stud 12 the end 13 being
drawn down and the end 14 being raised, so that the hollow at 14 spans or encloses
the valve lever 15 which it securely holds at the position of "shut off." The
closed position is shewn by Fig. 2.
The apparatus as described is to be applied to each valve and in case the framing

page_text: or other part of the engine does not admit of obtaining the requisite motion direct
from the governor shaft a small counter shaft and gear wheels as shewn at
Fig. 4 may be employed for transmitting the motion from the governor shaft to
the knocking off rod 3.
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 :-
The swan necked or hollow ended lever 10, together with the weighting and
knocking off devices connected therewith as herein fully described and illustrated
by drawing or any mere modification of the same.
Dated this 10th 1 CT
1000
ROBERT RIPLEY,
By his Agent, Walter Brierley,
Penny Bank Chambers, Waterhouse Street, Halifax.