Improvements in Fog Signalling Apparatus for Railways.
Year: 1892

page_text: Date of Application, 25th July, 1892
Complete Specification Left, 4th Mar., 1893-Accepted, 8th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Fog Signalling Apparatus for Railways.
We JOSEPH HART, 86 Salisbury Street, Warper, and JOHN PARSON, 22
Stanfeld Street, Warper, both of New Radford, Nottingham, do hereby declare
the nature of this invention to be as follows:-
Each set of apparatus consists of the following parts; to either side or end of
each engine a piece of metal is secured provided with a cap, the metal piece is
clipped by a slotted link, from the lower end of the link a stud projects on which
the lower end of a coiled spring is hooked, the upper end of the spring being
hooked on a stud above the slotted link. The stud of the link is attached to the
upper end of a rod or chain, the lower end being attached to the upper end of a
vertical lever rocking on an axle carried by an arm projecting downwards from the
engine framing.
The lower end of the vertical lever carries a truck which runs up a double
inclined piece of metal fixed near the inside or outside of each line of rails. There
are two such double inclined pieces fixed to each line of rails the required distance
apart, intermediately of the fixed inclines is a third double inclined piece which
slides horizontally at a right angle to the line of rails being held clear of the truck
bearing rocking lever by a coiled spring or by a rod chain and weight.
This sliding double inclined piece is drawn into position to actuate the rocking
lever on the engine, by the attendant in the nearest signal box moving a lever
connected by a rod and chain attached to the inclined piece.
Each side of the slotted link before named is provided with a projecting piece
which when the link rises operates a rocking lever carrying a bell hammer at its
upper end, the bell being attached to the framing of the engine.
The upper end of the sliding slotted link may be connected by means of a link
and chain to the whistle of the engine, or to a fog horn carried by the engine.
Dated this Twenty-third day of July 1892.
H. W. GOUGH, C.E.,
Agent.
COMPLETE SPECIFICATION.
Improvements in Fog Signalling Apparatus for Railways.
We JOSEPH HART, 86 Salisbury Street, Warper, and JOHN PARSON, 22
Stansfield Street, Warper, both of New Radford, Nottingham, 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 :--
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a back view of a railway engine on a line of rails with our
improvements applied thereto.
Figure 2 shows a side view of the same with part of the engine cab broken away
and a rail removed.
Figure 3 shows a plan of portions of two rails, two sleepers, a sliding block and
wire connecting the block to a signal box.
Figure 4 shows a side view of the block between the rails.
Figure 5 is a transverse sectional view of the parts shown at Figure 3.
Price su]

page_text: Figure 6 an enlarged side view of the upper part of the apparatus for striking a
bell on the side of the engine cab, with the bell removed.
Figure 7 is a transverse sectional view of the apparatus and bell.
Each set of apparatus consists of the following parts shown at Figures 6 and 7.
To each engine a metal plate 1 is secured, its projecting central piece is provided
with a cap 2 and is clipped by a slotted link 3, from the lower end of the link a
stud 4 projects on which the lower end of a coiled spring 5 is hooked, the upper
end of the spring being hooked on a stud 6 above the slotted link.
The lower end of the link is connected to the upper end of a rod 7 shown at
Figures 1 and 2 having its lower end hinged to the upper end of a vertical lever 8
rocking with an axle 9 carried by arms 10 projecting from the engine framing.
The axle 9 has two arms 11 secured on it and rocking with it, the lower end of
each arm may carry a truck or be enlarged as shown in the drawings to run up a
double inclined piece of metal 12.
The inclined piece 12 slides horizontally between and at a right angle to the
line of rails on two rods 13 held by a metal box 14 bolted to two adjacent
sleepers.
The sliding double inclined piece is drawn into the position shown at Figures 1
and 3 to actuate the rocking lever 8 on the engine, by the attendant in the nearest
signal box moving a lever connected by a rod and chains 15 attached to the inclined
piece. When not placed in the position shown, the inclined piece is drawn clear
of the arm 11 by a chain 16 and weight 17, the chain passing over a pulley in a
box 18 outside the rails.
The sides of the slotted link 3 is provided with two projecting pieces 3" 30.
Above the slotted link is a bell 22 supported by a stud projecting from an arched
bracket 23 having its ends secured to the metal plate 1.
The action of the bell signal is as follows:-
When the lower end of either of the arms 11 strikes the sliding block 12 it is
brought to one of the positions shown by dotted lines at Figure 2 according to
the direction in which the engine is running and acting upon the lever 8 and rod 7
pulls down the slotted link 3, the projections 3ª, 3b strike the catch levers 19, 19*,
shown at Figure 6. The lever 19 pulls over the hammer 20 and this being brought
sharply back by a spring 21 strikes the bell 22. The lever 19* goes to the position
shown by dotted lines allowing the projection 3 to pass and is brought back to
its original position by a spring 24".
On the completion of the down stroke the slotted link 3 is brought back to its
starting position by the coiled spring 5, the projections 3º, 3b, again striking the
catch levers 19, 19*.
The lever 19 pulls over the hammer 20* which is brought back by a spring 21*
and strikes the bell. The lever 19 goes to the position shown by dotted lines and
is brought back to its original position by a spring 24.
Such movements being repeated each time either of the arms 11 strikes an incline
block 12.
Instead of a bell signal the slotted link 3 may be connected by a link and chain
to the whistle of the engine or to a fog horn carried by the engine.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The construction and employment in fog signally apparatus of a plate 1,
cap 2, slotted link 3 having projections 3º, 3b, a spring 5 and studs 4 and 6, the
link being connected to a rod 7 hinged to a lever 8 rocking with an axle 9 carried
by arms 10, the axle having two levers 11, either of which may strike an inclined
block 12 when the said block is placed in position by an attendant in a signal box,
substantially as bereinbefore described.
2. The construction and employment in fog signalling apparatus of a double
inclined block 12, sliding on two rods 13 in a metal box 14, secured to two sleepers of

page_text: a line of rails, the block being adjusted to be struck by one of the levers 11 by an
attendant in a signal box moving a lever connected by a rod and chains 15 to the
block, upon the lever being released by the attendant the block is drawn clear of
the levers 1, by a chain 16 and weight 17 in a box 18, substantially as herein-
before described.
3. The construction and employment in fog signalling apparatus of two catch
levers 19, 19, hammers 20, 20*, springs 21, 21, a bell 22, bracket 23, and
springs 24, 24*, substantially as hereinbefore described for the purpose specified,
and illustrated in the drawings annexed.
Dated this 2nd dor of Mom 1002
H. W. GOUGH, C.E.,
Agent.