Year: 1887

page_text: Date of Application, 18th Mar., 1887
Complete Left, 19th Dec., 1887
Complete Accepted, 20th Jan., 1888
GEORGE FREDERICK ATTREE 8 Hanover Crescent Brighton Auctioneer does hereby
declare the nature of this invention to be as follows:
:-
On the left-hand side of a Locomotive engine fastened by means of a pivot, a shaft.
long enough to extend above the height of the roof of a railway carriage and below the
pivot sufficiently far to attach a balancing weight. On the shaft, at a convenient height
above the pivot, affix a metal rod to work through a ring; also a second rod
detached from the first but placed close to the back end or remotest part from the
shaft also secured by rings through which the rod can slide. Between the front
part of rod No. 2. and the engine place a button connected with an electric bell
or gong and at the back end of rod No. 2 attach a lantern so that when the rod is
pushed back to its extent the lantern becomes visible to the Driver and the electric
bell button is released. The appliance is worked from the signal box by means of
wires and levers in the usual way but signal posts of the following description are
required. An upright post placed as near as convenient on the left side of the
rails, with a metal bar, of sufficient length to come in contact with the upright
shaft on the engine, affixed, which when in use is placed at right angles to the post
at such a height from the ground as to clear the railway carriages and when not in
use to be raised by a wire worked from the signal-box. The result when the shaft
on the engine comes in contact with the signal bar is that the shaft is forced back-
wards, rod No. 1 pushes rod No. 2 to its extent and shows the lantern also releasing
the electrical bell which continues to ring until rod No. 2 is replaced by the Driver.
Dated this Seventeenth day of March 1887.

page_text: COMPLETE. SPECIFICATION.
Improvements in Fog Signalling Apparatus for Railways.
I GEORGE FREDERICK ATTREE of 8 Hanover Crescent Brighton Sussex, Auctioneer,
do hereby declare the nature of this invention and in what manner the same is to
bo performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to an arrangement of apparatus whereby a signalman can
warn the driver of an approaching train that the signal is at danger and is particularly
applicable for use in foggy weather, and would enable the usual detonating signal to
be dispensed with. In carrying the invention into practice a pivotted vertically held
arm is attached to the engine which is moved from its vertical position by coming in
contact with a projecting arm set by the signalman such movement of the engine arm
actuating the means attached to the engine for warning the driver.
To enable my invention to be properly understood I will proceed to fully describe
the same with aid of the accompanying drawings.
Figure 1 end view of apparatus attached to engine, and on side of line.
Figure 2 side elevation of that part of the apparatus attached to engine.
On both sides of engine near furnace end is attached a plate A, having an arm B,
pivotted at C, and held in vertical position by bow springs E; the arin B, has a
pivotted short rod F, guided by a guide G; this rod F, is intended to press forward
a sliding rod H when the arm B, is moved from its vertical position towards the
driver. This rod slides in a guide in plate A. The sliding rod H carries at its
end a lamp I, which projects through the wind shield J, on the arm B pushing the
rod I forward, and gives a visual notice to the driver that the signal is against him;
the lamp remains visible to the driver until he pushes it back when a spring door
closes over the aperture and hides the light. An auricular warning can at the same
time be given to driver, and guards, and signalman warned of the approach of
the train, by connecting the rod H with the whistle so that it will sound on the rod H
being pushed forward: or the rod H can be arranged to make an electrical contact to
ring an electric bell to warn the driver. To enable the apparatus to work in event of
the engine running tender first, the rod H, is operated by an extra lover K, connected
to plate A and operated by the bottom of arin B, and pressing rod H forwards by
coming against a stud I. on rod.
The necessary depression of the arm B, to work the bolt H, is obtained as follows.
At a suitable distance in advance of the signal 1 arrange on the side of the line a
post M, in the upper part of which is a pivotted arm N, arranged to fall into a
horizontal position similar to a signal and project over the line sufficiently far for
the arm B to strike against to depress it to actuate the rod H, as has been described.
This arm N, is dropped into the horizontal position by the signalman when putting
the signal at danger; and when it is not required that the arm B, should be depressed
the arm N is drawn up by a line the same as a signal is drawn down. The line to do

page_text: this may be connected on to the signal lever so that both work together, but capable
of being unhooked from the signal lever at the discretion of the signalman.
Having now particularly described and ascertained the nature of my Invention
and in what manner the same is to be performed, I declare that what I claim is
The arrangement of apparatus for enabling the signalman to warn the driver of
an approaching train that the signal is against him, substantially as hereinbefore
described and represented in the accompanying drawings.
Dated this 19th day of December 1887.
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, W.C.,
Agent for Applicant.