Improvements in or connected with Winding-engines.
Year: 1896

page_text: Date of Application, 22nd June, 1896
Complete Specification Left, 19th Feb., 1897-Accepted, 8th May, 1897
PROVISIONAL SPECIFICATION.
Improvements in or connected with Winding-engines.
We, ALFRED LYMN of Fir Tree Villa, Lower Ince in the County of
Lancaster, Mining Engineer and PETER CRITCHLEY, of Liverpool Road,
Hindley, in the said county, Engine Fitter, do hereby declare the nature of this
invention to be as follows:-
This invention relates to winding engines more particularly such as are employed
at coal mines and is designed to prevent over winding of the engine when raising
the cage, also to prevent over winding through starting in the wrong direction and
to stop the engine in any part of its lift should the engine man or winder leave his
post whilst the engines are in motion.
.
It consists essentially in constructing the engines with a travelling or movable
finger or lever operating in conjunction with stationary levers connected with the
throttle valve reversing lever and steam brake whereby should the engines run
too far the steam is shut off engines reversed and the brake applied, and with a
foot lever upon which the engineman stands to which a counterbalanced weight is
applied connected with the steam brake whereby the brake is applied and the
steam shut off should the weight be removed by the engineman leaving his post.
In carrying out the invention upon the drum shaft or other convenient place we
place a toothed driving pulley with a driving chain of any suitable construction
driving therefrom. Below the bed of the engine or in any other convenient
position we stretch over two or more pulleys or shafts a second driving band or chain
preferably placed horizontally. This chain is driven by and caused to travel in
either direction by the driving chain from the pulley on the drum shaft. On the
horizontal driving band or chain is secured a projecting lever or finger which
travels to and fro therewith.
Above the horizontal chain are placed two levers connecting by means of
suitable rods with the throttle valve two other levers conuected by suitable
connecting rods with the reversing lever. By moving either of the levers
connected with the throttle valve the steam of the engine can be shut off and by
moving either of the levers connected with the reversing lever the bolts of the
reversing lever are raised from the notches in the quadrant and the engine
reversed. Either of these operations are performed by the projecting finger on the
horizontal driving chain coming into contact with the respective levers.
The supply pipe by which steam is admitted to the steam brake has also applied
to its inlet or supply valve a lever which comes in the path of and is also operated
by the projection on the travelling chain when this projection comes into contact
with the lever the supply valve is shut and by means of a connecting link the
exhaust valvé is opened so that the brake may be at once applied.
We also apply to the steam pipe an additional three way valve which connects
the supply pipe either with the steam or with the exhaust. To this valve is
applied a counterbalanced lever one end of which carries a weight and the other
carries a foot lever upon which when at his post the engine man stands. When
standing upon it and the weight is applied the three way valve remains open but
when the weight is removed by the engineer leaving his post the three way valve

page_text: is closed to the steam and opened to the exhaust thus allowing the steam brake to
be applied..
To the piston rod of the brake we apply a cam acting upon a balanced lever.
This lever is by means of connecting rod and link connected with the throttle
valve so that when the brake is applied the cam acts upon its lever and closes the
throttle valve. As soon as the brake begins to act the throttle valve is thus
closed.
The invention can be applied to any existing engine and does not interfere in
any way with the ordinary working of the engine by the engine brake but acts as
an auxiliary in case the engine is not stopped or reversed at the proper time.
Dated this 18th day of June 1896.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
Improvements in or connected with Winding-engines.
We ALFRED LYMN, of Fir Tree Villa, Lower Ince, in the County of
Lancaster, Mining Engineer, and PETER CRITCHLEY, of Liverpool Road,
Hindley, in the said county, Engine Fitter, 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 tó winding engines more particularly such as are employed
at coal mines and is designed to prevent over winding of the engine when raising
the cage, also to prevent over winding through starting in the wrong direction and
to stop the engine in any part of its lift should the engine man or winder leave his
post whilst the engines are in motion.
It consists essentially in constructing the engine with a travelling or movable
finger or lever operating in conjunction with stationary levers connected with
the throttle valve reversing lever and steam brake whereby should the engines
run too far the steam is shut off, engines reversed, and the brake applied, and with
a foot lever upon which the engineman stands to which a counterbalanced weight
is applied connected with the steam brake whereby the brake is applied and
the steam shut off should the weight be removed by the engineman leaving
his post.
It will be fully described with reference to the accompanying drawing in which
sufficient of a winding engine is shown to illustrate the invention.
Fig. 1. Side elevation.
Fig. 2. Plan.
Fig. 3. Sectional elevation of steam brake.
Upon the winding drum shaft or the drag crank shaft A (or other convenient
place) we fix a toothed driving wheel B with a driving chain C driving onto a
shaft D placed some distance below. Below the bed of engine (or other convenient
position) we place a second driving band or chain E stretched preferably
horizontally over two or more pulleys on the shafts D and D. Between the
shafts D and D¹ is placed a supporting bar F of trough shape to support the
chain E and prevent it sagging. This chain E is driven by and caused to travel
in either direction by the driving chain C from the pulley on the shaft A, and
upon it is secured a projecting lever or finger e which travels to and fro with it.
Above the horizontal chain E are pivoted two levers G and G which are
connected by means of the connecting rods or links g 9¹ and levers g" with a rod

page_text: or shaft H by which the throttle valve is controlled or operated, so that the move-
ment of these levers will close the throttle valve to cut off the supply of steam to
the engines. Two other levers J and J' are also pivoted above the chain E and
are attached to a rod or bar K connected with the reversing lever L so that by
moving either of these levers the bolt of the reversing lever is raised and the lever
thrown over to stop or reverse the engine.
The reversing lever L is affixed to the valve shaft in the usual way and moves
to and fro over a quadrant L' it is connected or pivoted to the rod or bar K by a
pin on the side of the lever entering a slot k cut in the rod or bar K. On the
upper side of the rod or bar K are two inclines 41 which pass under the end of a
connecting rod on the side of the reversing lever L to raise the bolt. When the
rod K is moved the slot k slides over the pin and the incline k presses under and
raises the connecting rod and with it the bolt of the lever the end of the slot k
then comes against the pin and throws over the reversing lever L.
The full lines in the drawing Fig. 1 show the connection when the reversing.
lever is placed vertical and the dotteil or broken-lines show the arrangement for a
horizontal or inclined reversing lever.
By the travelling chain E and finger or levere the steam brake is also controlled
so that it is applied in succession to the operation of cutting off the steam and
reversing the valves. To the supply or inlet valve M of the steam pipe M¹ by
which steam is admitted to the cylinder P of the brake we attach a depending
lever m which also lies or hangs in the path of the moring finger e on the travelling
chain E. The steam inlet valve M and lever m are connected with the exhaust
valve N by a link n so placed that when one valve is closed the other is opeu, the
movement then of the lever m operates both valves. When the travelling projection
or finger e on the chain E comes into contact with the lever m the supply valve M
is shut and steam shut off and the exhaust valve N opened the brake being thereby
applied or rice versa the steam valve is opened and the exhaust valve closed to
apply the brake-according to the type of steam operated brake to which it is.
applied.
We also apply to the steam pipe M' an additional three way valve O which will.
open in one direction to admit steam to the cylinder P of the brake and in the
other way to exhaust the cylinder.
This valve is operated by a weighted lever R and weight the position of the
lever and weight being such that they normally tend to apply the brake either by
cutting off steam to the cylinder P and opening the exhaust or vice versa according
to the type of brake. To the weighted lever R we connect by a connecting
rod a foot lever R¹ placed in the floor of the engine room in the place where the
attendant stands to control and operate the engines. The engine man when at his
post stands upon the foot lever R and his weight overbalances the weighted
lever R and holds the valve O in such position as to keep the brake off should the
engine man remove his weight by stepping off the foot brake R' and leaving his
post the weighted lever R moves the three way valve shutting off the steam and
opening the exhaust er vice versa and so instantly applies the brake.
In order to prevent the full pressure of steam at any time acting upon or being
supplied to the engine when the brake is applied we connect the piston rod s of the
brake piston S with the throttle valve so that as the brake is applied the throttle
valve is closed. To the piston rod s we apply a cam or tumbler T which as the
piston rod is moved downwards comes in contact with the inclined arm t of a
weighted lever T attached to an oscillating shaft t. The oscillating shaft tis
connected by the lever and the connecting rod with the oscillating shaft H
of the throttle valve. The movement of the cam T with the piston S and piston
rod s as the brake is being applied forces back the arm of the weighted lever T
and oscillates the shaft t the motion of which is transmitted to the throttle valve
to close it through the lever t connecting rod and shaft H. As soon as the
brake begins to act, the throttle valve is closed and opens again when the.brake 'is
taken off.

page_text: MODE OF OPERATION.
When the engine man commences to wind with his engines the finger or
projection e on the chain E.starts from the arrow Q shown in Fig. 1 and travels
under the levers J and G the pivoted lower ends of which allow it to pass, and
round and under the shafts D and D' until it approaches the levers J' and G.
If the engine man has then not cut off steam and reversed the engine the finger
or projection e engages with the lever G and closes the throttle valve and then
engages with the lever J' and pushes over the reversing lever thus reversing the
engine. If the running of the engine is allowed to continue the projection
or finger e next comes in contact with the lever m on the brake valve M and
applies the steam .brake. In case the winder works his engines correctly the
finger e does not pass the lever m but in case of running too far or accidentally
starting the wrong way the lever m is at once acted upon and the brake applied.
In addition to this the foot lever R¹ which works independently of the chain E
will operate by way of cutting off steam and applying the brake, thus bringing
the engines to a stand in any portion of the shaft should the engineman be tempted
to leave his engines in motion, or owing to any circumstances over which he has no
control he moves from his position.
The invention can be applied to any existing engine and does not interfere in any
way with the ordinary working of the engine by the engine brake but acts as au
auxiliary in case the engine is not stopped or reversed at the proper time, and
either of the operating levers may be applied without the others if so desired.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The application to or combination with a winding engine of a travelling chain
or band carrying a finger or projection and levers operated thereby whereby the
steam is shut off the engines reversed and the brake applied (or one or other of
these operations are performed) automatically when the engine has reached or
exceeded the distance it ought to wind substantially as described.
2. In a winding engine the combination with the throttle valve of a pivoted
lever connected thereto and a travelling band and projecting finger by which the
valve is operated automatically when the engine has run a certain distance in
either direction.
3. In a winding engine the combination with the reversing lever of a pivoted
lever connected thereto by which the bolt can be raised and the lever reversed and
a travelling band with projecting finger to automatically operate the said lever and
reverse the engine when it has run a certain distance in either direction substantially
as described.
4. In a winding engine the combination with the steam valve and the exhaust
valve of the steam brake of a lever attached thereto and a travelling band and
projecting finger whereby the valves are operated and the brake automatically
applied when the engine has run too far in either direction substantially as
described.
5. A winding engine constructed with a foot brake or lever for the attendant to
stand upon during the running of the engine which will act to cut off the steam
supply or to apply the brake should he remove his weight or leave his post
substantially as described.
6. In a winding engine the combination with the steam admission or supply pipe
for the steam brake oi a three way tap and a weighted lever with a weight on one
end and a pedal or foot lever at the other operated in one direction by the weight
and in the reverse direction by the attendant so that should he leave his post the
brake will be applied and the engine stopped substantially as described.
7. In a winding engine the combination with the piston and piston rod of the

page_text: steam brake of a cam or tappet on the piston rod, and an oscillating lever with
inclined arm connected with the throttle valve with which the cam or tappet
engages as the brake is being applied closing the throttle valve and shutting off
the steam whilst the brake is on substantially as described.
Dated this 18th day of February 1897.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.