Improvements in and connected with Railway Signalling.
Year: 1895

page_text: Date of Application, 17th Oct., 1895
Complete Specification Left, 16th July, 1896-Accepted, 22nd Aug., 1896
PROVISIONAL SPECIFICATION.
Improvements in and connected with Railway Signalling.
I, WILLIAM FREEBURY of No. 187 High Street, Harlesden, Middlesex,
Cabinet Maker, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to enable signals at a very considerable distance
from the signal-box to be readily worked, and at the same time to give audiblo
notice to a passing train if the signal is over-run when set at danger, although such
audible notice may be given at a point intermediate to the signal-box, or at other
parts of the linc.
To enable the signals at a distance to be readily operated it is proposed to
counterbalance the wires which operate them, by means of weights or springs
The signal
adapted also to take up any stretch or slack that may result from use.
lever also operates a pivoted arm placed adjacent to the rail, and so arranged that
when the signal is down and the line open, the passing train will have no effect
thereon When on the contrary the signal is at danger the pivoted piece is thrown
over so closely to the rail that the passing wheels will move it slightly and by n
lever or like connection operate a bell or audible signal, while as a further
precaution a projecting arm or roller attached to said pivoted piece comes in line
with an inclined and loosely hanging rod or bar beneath the engine, said 1od or
bar being also connected with the whistle.
It will be thus seen that in whichever direction the engine is travelling, if 'tho
signal is set at danger an audible notice will be given both at a fixed point on the
line and on the engine itself.
Dated the 17th day of October 1895.
'
PHILIP M. JUSTICE,
5 & 56 Chancery Lane, London, Chartered Patent Agent,
For the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Railway Signalling.
1, WILLIAM FREEBURY, of No. 187 High Street, Hailesden, Middlesex,
Cabinet Maker, 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 aud
by the following statement.-
The object of this invention is to enable signals at a very considerable distance
from the signal-box to be readily worked, and at the same time to give audible
notice to a passing train if the signal is over-run when set at danger, although such
audible notice may be given at a point intermediate to the signal-box, or at other
parts of the hue.
Various arrangements of my invention may be employed and the part of same
which consists in counterbalancing the wires may be used in connection with ordinary
systems of signalling to obviate the usual heavy pull required for a long distance
signal as well as to render signals of any form capable of being readily operated aț

page_text: any point of the line by way of giving notice from a broken down train to a signal
box or for the purpose of blocking the line on which such train is standing.
In the accompanying drawings is illustrated some forms of my invention. In these
drawings
Fig 1 is an elevation of a track showing one method 1 employ for balancing
the wires such wire operating audible signals placed at different points on the line.
Fig. 2 is a plan of same.
Fig. 3 is an elevation of an engine and track to illustrate the means for giving an
audible signal or signals on the former.
Fig. 4 is a plan of the track only shewing the balanced wire for operating the
device.
Fig. is an elevation showing a balanced wire applied to a semaphore signal the
movement of the arm of which may control a similar device in the track to that
shown in Fig. 4.
Fig. 6 is a plan of a part of Fig. 5.
&
To avoid the heavy pull on the wires running to distance and other signals and
to enable signals of all kinds to be readily operated I employ a single wire a which
may be supported at intervals by the bracket pulleys b cantied upon posts or other-
wise such wire terminating at each end in a chain where it passes over a sprocket
wheel do a pulley having a suitable surface to hold the chain which then passes
down into a box or pit e in which it carries a counter weight as f. Where a long
length of wire is employed 1 prefer to place at intervals a sprocket wheel g or a
suitably faced pulley carried on a post or in any suitable way, chains e¹ being
substituted for the wire where it passes round the pulley. These sprocket wheels
or pulleys may carry an indicating finger which will show the position of any
signal on device which the wne may be employed to operate.
In the arrangement shown, a bent bar is pivoted in the track at the long arm
being connected to a rod ; which is attached in turn to a crank & the other arm of
the latter being connected to the wire. The beat portion of the bai lies close to
the rail as shown, and one of the pulleys d over which the wine operates and
preferably that one at the greatest distance from the bar is connected by means
of a rod with a hammer of a gong m or to some other audible o suitable signalling
device situated preferably in a signal cabin n.
To keep the bent bai normally close to the rail the counterweights of the wire a
may be slightly heavier at one end than the other but I prefer to employ a secoud
wine and counterweight p as indicated in Fig. 2
n
2
Situated also in the track and at a short distance from the fi-t bar there may
be a second bar pivoted at which will operate similar parts but with a wie
running in a reverse direction to the first wire
In this manner a train coming from the night will move aside the beut bar
with the flanges of the wheels, the bar being restored immediately each wheel
passes by the counterweight p and will thus impart a vibrating movement to the
wire and ring the gong m m the signal cabin ahead of same to show that it has
passed onto a certain section of the line while as soon as it reaches the bar it
will through the wire connected thereto ring the gong or give an audible or other
signal at the car of same to judicate either its position on the track or to ring
the track clear. In place of the two sets of bars I may make the same har
operate wires running forward and backward of the train.
Where I desne to employ an audible signal upon the engine or other vehicle
1 use the device on a similar one to that shewn in Figs. 3 and 4 where the bai
18 provided with a vertical pin or post 9 at the end, which when the bar is moved
into a position corresponding with the danger position of the ordinary semaphore
signal will be in line with a pivotally hung arm carried by the engine of the
like. Such aim is indicated in dotted lines in Fig. 4 to show that it is bent to
a suitable incline and is connected at one end to a crank s on the engine which i
1brough a rod is connected to a crank which operates the whistle when the aim r
is rocked by coming in contact with the post q. It will be seen that the arm

page_text: will be struck by the post in whichever direction the engine is travelling except
when the bai 15 moved away when the signal is taken off Such an arrangement
18 of value where it is impossible for the dive to see the ordinary signals. In
addition to the arm a similar arm may be employed to ing a gong in the
tender or the guards van.
and 6
The connections between the wire and the signal are shewn in Figs
where it will be seen that the sigual post is provided with a sprocket wheel or
suitably faced pulley connected by a 1o1 with the signal arm the chan e² of
the wife a being attached to sud wheel. On the face of the wheel u may be a
second sprocket wheel on the like w to which is connected a short length of
chain attached to the counter weight the wheel having a od r connected'
thereto and running to a lever in the signal cabin so that as the signal aim is
operated so will the counterbalanced wne a be moved to bring the post 9 into a
position to sound an audible signal on the train
Various altangements and combinations of the parts may however be employed
for giving signals of various kinds.
For instance by a combination of the parts shown in Figs 1 to 6 a tram may be
stopped in a fog when the signals are against it but are not visible, by an audible
signal placed alongside of the live and which the wheel of the engine will operate
as it passes so warning the driver to pull up
Upon the signal being taken off the bai will be removed from the wheel flanges
and will therefore not be operated and the signalman can announce to the driver
that he may advance by means of a supplementary lever attached in sonic convenient
way to the wie a so that a prearranged number of strokes on the gong on the like
muy be given from the cabin thus obviating the necessity of sending a man up the
line to bring the train on,
Having now particulaily described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed 1 declare that what I
claim is
In railway signals the employ mert of a balanced we substantially as and
for the purpose set forth.
2. In railway signals the constinction and arrangement of the balanced wire
substantially as described and illustrated and for the purposes set forth
3. In ailway signals the improved arrangements of parts for giving an audible
signal for ward or at the rear of the tram on both or alongside of same substantially
as described.
4. In railway signals the improved arrangement of parts whereby an audible
signal carried by the engine or other vehicle 18 operated" from a distance substan-
tially as described.
5 The improvements in and connected with railway signalling substantially as
descubed and illustrated in the drawings.
Dated the 16th day of July 1908
PHILIP M. JUSTICE,
London, Chartered Patent Agent,
For the Applicant.