An Improvement in Ground Signals for Railways.
Year: 1890

page_text: Date of Application, 20th Dec., 1890
Complete Specification Left, 10th Aug., 1891-Accepted, 12th Sept., 1891
PROVISIONAL SPECIFICATION.
An Improvement in Ground Signals for Railways.
We, JOHN STINSON FARMER, and CHARLES HODGSON, both of Canterbury
Road, Kilburn, in the County of Middlesex, Engineers, do hereby declare the
nature of this invention to be as follows:-
Our invention relates to a construction of the ground signals used for shunting
and such like purposes on railways, in such a manner that they can readily be made
available for being illuminated by gas or by oil, and that, when oil is employed, the
lamp proper shall remain stationary while the lantern and its coloured glasses are
rotated in the usual way.
For this purpose, we mount the vertical tube, ordinarily employed, in bearings
so that it can be made to revolve the one way or the other by the usual pulls, and
on the top of this tube we fix the lantern and its coloured glasses so that the lantern
revolves with the tube. Within this tube, whichi can rotate, we fit either a solid
rod or it might be a tube of smaller diameter, the lower end of which is fixed, and
this stationary rod or tube carries the lamp proper, including the reservoir, wick &c.
when oil is used. When gas is used, the central tube may be used to feed the
burner, or the main tube itself, the internal rod or tube being removed, may serve
for the gas supply.
Dated this 20th day of December 1890.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
An Improvement in Ground Signals for Railways.
We, JOHN STINSON FARMER and CHARLES HODGSON, both of Canterbury
Road, Kilburn in the County of Middlesex, 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:-
Our invention relates to a construction of the ground signals used for shunting
and such like purposes on railways, in such a manner that they can readily be
made available for being illuminated by gas or by oil, and that, when oil is
employed, the lamp proper shall remain stationary while the lantern and its coloured
glasses are rotated in the usual way.
For this purpose we construct the signal as we shall describe referring to the
accompanying drawing which is a side view partly in section.
We mount the vertical tube A. ordinarily employed, in bearings B C so that it
can be made to revolve the one way or the other by the usual pulls D and on the
top of this tube we fix the lantern E and its coloured glasses so that the lantern
revolves with the tube.
Within this tube, which can rotate, we fit either a solid rod F or it might be a
tube of smaller diameter, the lower end of which is fixed at G and this stationary
rod or tube carries the lamp proper H including the reservoir, wick &c. when oil is
used. When gas is used the central tube may be used to feed the burner.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what
we claim is:
The construction of a railway ground signal with its lamp fixed on a stationary

page_text: central rod or tube, and the lantern, enclosing the lamp fixed on an external
rotating tube substantially as described.
1
1001
ABEL & IMRAY,
Agents for the Applicants.