Improvements in Detonators for Railway Fog Signalling and the like.
Year: 1898

page_text: Date of Application, 3rd Feb., 1898
Complete Specification Left, 3rd Nov., 1898-Accepted, 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Detonators for Railway Fog Signalling and the
like.
I, JOHN GEORGE DIXON, of Don Villa, Penistone, in the County of Yorks, Engineer,
do hereby declare the nature of this invention to be as follows:-
My invention has reference to improvements in detonators for railway fog
signalling and the like, and consists in providing in an outer casing or second
bottom, in which the detonator proper fits, a couple of slots preferably formed by
stamping through which slots a strip of tin, lead or other suitable material is slipped
(said strip being for the purpose of clipping the detonator to the rail) instead of as
heretofore soldering the strip to the bottom of the detonator.
The outer casing with the strip of tiu or the like attached as above described is
for the purpose of rendering the detonator perfectly watertight.
Dated this 3rd day of February 1898.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
Agent for the said Applicant,
70 and 71, Palace Chambers, Westminster, S.W.
Improvements in
like.
I, JOHN GEORGE DIXON, of Don Villa, Penistone, in the County of Yorks, Engineer,
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 :—
My invention has reference to improvements in detonators for railway fog
signalling and the like, and consists in providing in an outer casing or second
bottom, in which the detonator proper fits, a couple of slots preferably formed by
stamping, through which slots a strip of tin, lead or other suitable material is
slipped (said strip being for the purpose of clipping the detonator to the rail)
instead of as heretofore soldering the strip to the bottom of the detonator.
Referring to the accompanying drawings,
Figure 1 is a sectional elevation illustrating my invention.
Figure 2 is an underneath view of the detonator showing the lead strip threaded
through the slots in the bottom.
Figure 3 illustrates a modification in which the slots for attaching the lead strip
are provided on the top of the detonator instead of on the bottom.

page_text: In Figure 1 and 2 the slots a a¹ are provided (preferably by stamping) in the
bottom of tho detonator and in Figure 3 they are shown provided in the top, the
strip of lead b (or other suitable material) being threaded through as shown) and
soldered in addition if desired. With my invention as described the lead strip b
is in no way dependant on the solder for its attachment to the detonator case.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In detonators for railway signalling, slots as a a¹ through which a strip of lead
(or other material) for clipping the detonator to the rail is threaded substantially as
set forth.
Dated this ord day of November 1898.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
Agent for Applicant, 70 and 71, Palace Chambers, Westminster, S.W.