Improvements in or relating to Detonating Fog Signals for Railways.
Year: 1895

page_text: Date of Application, 28th Oct., 1895
Complete Specification Left, 28th July, 1896-Accepted, 29th Aug., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Detonating Fog Signals for
Railways.
I, ARTHUR PAIN of 121 Walworth Road, London, S.E. Pyrotechnist, do
hereby declare the nature of this invention to be as follows:-
This invention relates to what are known as "detonating" fog signals for
railways and according to my present invention I proceed as follows:-
The case is made in two halves or parts advantageously of thin sheet metal such
as tin or terne plate or other suitable material.
The lower part or base has an external channel (circular or otherwise) formed
therein which thus forms an internal central recess or dish (circular or otherwise)
adapted to receive and retain therein the anvil or mount for the percussion cap
or caps.
The edge of this base is turned up all round so as to fit within the turned down
edge or flange on the top part of the case.
The top part of the case is formed just a shade larger than the lower part or in
suchwise that the turned down edge or flange on said top will enclose the lower
part or base entirely and thus water will readily drain off the signal and wet is
prevented from getting into the interior-the two parts (or the edges thereof)
being if desired also hermetically or closely sealed or joined together in any
suitable manner for instance by seaming, soldering, painting or varnishing as
desired.
The central part of the top may be dished or not or otherwise suitably formed
to assist in keeping the anvil and percussion caps thereon in proper position.
My improved signal may be secured to the rail by any suitable device or clip
for instance by a strip of lead or the like soldered or otherwise fixed to the signal
and advantageously fixed across or to the top thereof so as to grip the rail more
firmly.
Dated this 28th day of October 1895.
Improvements in or relating to Detonating Fog Signals for
Railways.
I, ARTHUR PAIN of 121 Walworth Road, London, S.E. Pyrotechnist, 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 to what are known as "detonating" fog signals for

page_text: railways and according to my present invention I proceed as follows-reference
being had to the accompanying drawings in which :—
Fig. 1 is a plan of a log signal according to my present invention.
Fig. 2 is a plan of the reverse or underside of Fig. 1.
Fig. 3 is a cross sectional view on a larger scale of the case and means for
attaching said fog signal on a rail.
The case is made in two halves or parts a and b advantageously of thin sheet
metal such as tin or terne plate or other suitable material.
The lower part or base bhas an external channel 6' (circular or otherwise)
formed therein which thus forms an internal central recess or dish 62 (circular or
otherwise) adapted to receive and retain therein the anvil or mount (not shown)
for the percussion cap or caps.
The edge of this base is turned up all round so as to fit within the turned down
edge or flange a' on the top part a of the case.
The top part
of the case is formed just a shade larger than the lower part or
in suchwise that the turned down edge or flange a' on said top will enclose the
lower part or base b entirely and thus water will readily drain off the signal and
wet is prevented from getting into the interior-the two parts (or the edges
thereof) being if desired also hermetically or closely sealed or joined together in
any suitable manner for instance by seaming, soldering, painting or varnishing etc.
as desired.
The central part of the top may be dished (as shown) or not or otherwise
suitably formed to assist in keeping the anvil and percussion caps thereon in proper
position.
My improved construction of signal may be secured to the rail by any suitable
device or clip for instance by a strip of lead or the like soldered or otherwise fixed
to the signal and advantageously such lead strip or attachment c may be fixed
across or to the top thereof so as to grip the rail firmly as shown in Fig. 3-or
this attachment c may be used over the top of any other similar signal to thus
attach same to the rail.
Having thus described and ascertained the nature of my said invention and in
what manner the same is to be performed I declare that what I claim is :-
1. In detonating fog signals for railways-forming the top part of the case
thereof with a turned down edge or flange adapted to enclose within same the
bottom part of said case combined and arranged to act substantially in the manner
and for the purposes herchbefore set forth.
2. In detonating fog signals for railways-forming the top part of the case
thereof with a turned down edge or flange adapted to enclose within same the
bottom part of said case in combination and acting in conjunction with means for
attaching said case to the rail substantially in the manner and for the purposes
hereinbefore set forth.
3. Means for attaching detonating fog signals to railway rails consisting of the
combination therewith of a lead strip secured over the top of said signal and the
ends of said strip adapted to embrace the rail substantially as described.
4. The improved arrangement and construction of detonating fog signals
substantially as and for the purposes herein before described and illustrated in the
drawings hereunto annexed.
Dated this 28th day of Jul№ 1898
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.