Year: 1886

page_text: Date of Application, 14th Dec., 1886.
Complete Left, 14th Feb., 1887.
Complete Accepted, 18th Mar., 1887,
We ALFRED ANDREW LANGLEY and PAUL PRINCE both of the Midland Railway
Company Derby, Engineers do hereby declare the nature of this invention to be as
follows:-
This invention has for its object apparatus for working and bolt locking the switches
or points of railways by one lever.
In order more simply and safely to control the points or switch rails on railways
we provide near to the points between the switch rails a plate supported by a suitable
bed on which it is able to slide. This plate is connected to a hand lever in the signal
box. A bar attached to the facing points crosses the plate above referred to and the
bar has upon it a stud or roller which is lodged in a slot cut in the plate. The plate
also has projections upon it which serve as bolts and these enter corresponding holes
in the bar. When the plate is moved by means of the hand lever in the signal box
one of the bolts or projections upon the plate is first withdrawn from the hole in the
bar connected with the switch rails and so these are set free to move, then during
the further movement of the plate the inclined slot in it acts against the stud or roller
upon the connecting bar and by so doing shifts the switch or point rails, and finally
during the last part of the movement of the sliding plate the other projection or
bolt upon
it enters its hole in the connecting bar, so the switch rails are again locked
securely in position. Thus in whichever direction the hand lever is moved the opera-
tion is first to unlock the switch rails, then to move them over to the new position and
finally to again lock them.
In order to prevent the switch rails being moved when a train is upon or passing
over them, we provide, as is usual a lifting bar in the immediate neighbourhood of the
switch rails and this lifting bar is connected with the same lever that works the plate
above referred to.
CARPMAEL & CO.,
Agents for the Applicants.

page_text: Apparatus for Working and Bolt Locking the Switches or Points
on Railways by one Lever.
We, ALFRED ANDREW LANGLEY and PAUL PRINCE both of the Midland Railway
Company, Derby, Engineers, 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 has for its object apparatus for working and bolt locking the switches
or points of railways by one lover:
In order more simply and safely to control the points or switch rails on railways
we provide near to the points between the switch rails a plate supported by a suitable
bed on which it is able to slide. This plate is connected to a hand lever in the signal
box. A bar attached to the facing points crosses the plate above referred to and the
bar has upon it a stud or roller which is lodged in a slot cut in the plate. The
plate also has projections upon it which serve as bolts and these enter corresponding
holes in the bar. When the plate is moved by means of the hand lever in
the signal box one of the bolts or projections upon the plate is first withdrawn
from the hole in the bar connected with the switch rails and so these are set
free to move, then during the further movement of the plate the inclined slot in it
acts against the stud or roller upon the connecting bar and by so doing shifts the
switch or point rails, and finally during the last part of the movement of the sliding
plate the other projection or bolt upon it enters its hole in the connecting bar, so the
switch rails are again locked securely in position. Thus in whichever direction the 2
hand lever is moved the operation is first to unlock the switch rails, then to move
them over to the new position and finally to again lock them.
In order to prevent the switch rails being moved when a train is upon or passing
over them, we provide as is usual a lifting bar in the immediate neighbourhood of the
switch rails and this lifting bar is connected with the same lever that works the plate 2
above referred to.
In order that our said invention may be fully understood and readily carried into
effect we will proceed to describe the drawing hereunto annexed.
The drawing shows a plan of the apparatus.
a is a bed frame firmly bolted down to the sleepers between the rails of the line.
bis a plate capable of sliding thereon, it has two projecting ends 61 61 which are
received into guides a¹ a¹ on the bed frame. c is a lever having its fulcrum at a³ on
the bed frame, is jointed to the plate b and also to a rod d which is one of a line
passing to the signal cabin and moved by a hand lever therein, in the usual way. The
lever c is also connected with the lifting bar e.

page_text: is a
The plate 6 has in it a slot f the ends of which are straight or parallel to the line
along which the plate moves; but the intermediate part of the slot is inclined.
bar attached to the facing points h and having upon it a stud or roller ; this is
lodged in the slot f. There are also bolt holes in the bar g at g¹, g¹* and these receive
bolts or projections 63, 6** on the plate b. In the figure the bolt 6' appears lodged
in the bolt hole g¹; the bolt 6** similarly enters the hole g¹* when the plate 6 is at the
other end of its course.
The lifting bar e is carried in the usual way by inclined links by the side of the
rail.
In passing from one extreme position to another the lifting bar rises. When a
train is standing upon the line however the lifting bar is kept down by the flanges of
the wheels and consequently it and the parts connected with it become for the time
immoveable.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :-
1. Apparatus for working and bolt locking the switches or points on railways con-
sisting of a plate moved to and fro by connection with a hand lever and having an
incline upon it and also locking bolts; such incline and bolts working in conjunction
with a bar attached to the point rails, and the whole so operating that in the movement
of the plate a bolt is first removed from the bar attached to the point rails, then the
point rails are shifted by the operation of the incline and finally the other bolt is
inserted substantially as described.
2. The combination in apparatus for working and bolt locking the switches or
points on rails of the sliding plate b bolts 26* and slot and the bar g attached to
the facing points and carrying the stud or roller i within the slot f, substantially as
described.
3. Apparatus substantially as described for working and bolt locking the switches
or points on railways by one lever.