A Fog and Signal Horn for Locomotives, and Apparatus connected therewith.
Year: 1893

page_text: Date of Application, 9th June, 1893
Complete Specification Left, 23rd Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
A Fog and Signal Horn for Locomotives, and Apparatus connected
therewith.
I, WILLIAM DEWHIRST of White Horse Hotel, 2 Mealhouse Lane, Bolton in
the County of Lancaster, Licensed Victualler, do hereby declare the nature of my
said invention to be as follows:
This invention relates to an automatic fog and signal horn for locomotives and
apparatus connected therewith, and is designed to dispense with the fog signals
at present employed.
This I carry into effect by providing the locomotive with a whistle or horn
connected to the steam boiler by a pipe in any convenient manner. The said pipe
is provided with a valve or tap which may be operated by a lever and rod, spur
wheel and rack, or other equivalents fixed on the side of the locomotive; the rod
or rack being mounted in suitable bearings and extending to a point near the track
or railway rails. The bottom end of the rod or rack may be fitted with a bowl or
roller to operate in conjunction with inclines operated from the signal box or
otherwise by suitable mechanism.
The inclines are placed at convenient distances along the side of the track or rails,
and may be moved in and out of gear laterally, or by an up and down motion.
When the inclines are placed in position by the signalman the valve or tap is
opened to sound the whistle or horn when the bowl or roller comes in contact
therewith by the travelling movements of the locomotive.
This invention is equally applicable for signalling when a breakdown takes place
in a tunnel or other place; the valve or tap being operated by suitable mechanism
by the engine driver.
Dated the 8th June 1893.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
COMPLETE SPECIFICATION.
A Fog and Signal Horn for Locomotives, and Apparatus connected
therewith.
I, WILLIAM DEWIIRST of White Horse Hotel, 2 Mealhouse Lane, Bolton in
the County of Lancaster, Licensed Victualler, do hereby declare the nature of my
said 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 an automatic fog and signal horn for locomotives and
apparatus connected therewith, and is designed to dispense with the fog signals at
present employed. This I carry into effect by providing the locomotive with a
whistle or horn connected to the steam boiler by a pipe in any convenient manner.
The said pipe is provided with a valve or tap which may be operated by a lever
and rod, spur wheel and rack, or other equivalents fixed on the side of the
locomotive; the rod or rack being mounted in suitable bearings and extending to a
point near the track or railway rails. The bottom end of the rod or rack may be
fitted with a bowl or roller to operate in conjunction with inclines operated from
the signal box or otherwise by suitable mechanism. The inclines are placed at
convenient distances along the side of the track or rails, and may be moved in and
out of gear laterally, or by an up and down motion. When the inclines are placed
in. position by the signalman the valve or tap is opened to sound the whistle or
Prins 71

page_text: horn when the bowl or roller comes in contact therewith by the travelling move-
ments of the locomotive. This invention is equally applicable for signalling when
a breakdown takes place in a tunnel or other place; the valve or tap being operated
by suitable mechanism by the engine driver.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a longitudinal elevation of my invention showing locomotive in position
to operate fog and signal horn. Fig. 2 is a plan. Fig. 3 is a sectional elevation
through line A B in Fig. 2.
Fig. 4 is a sectional elevation of apparatus for operating valve and fog and signal
horn, and Fig. 5 is a part section and plan of Fig. 4.
C is intended to represent a locomotive; D the rails or track; E the sleepers,
and a signal post. In any convenient position on the side of the locomotive C
is fixed the whistle or fox horn G connected to the steam boiler by the pipe I.
The pipe I is provided with the valve or tap H having the spindle J. On this
spindle is fixed the spur wheel K mounted in the bearings L attached to the
frame M carrying the rod and rack N. The spur wheel K gears in the rack N,
the former being rotated to open and close the valve H by the up and down motions
of the rod or rack N. The bottom end of the rod N is fitted with the bowl or
roller O, mounted on the pin or centre P. The rod N is provided with the slot Q
to allow of the same sliding vertically on the key or feather R secured in the
frame M, by which its true working position will be maintained. On each side of
the rails or track D I mount the inclines S placed at convenient distances or where
necessary. These inclines are mounted or carried by the levers or supports T
pivoted on the centres U attached to the sleepers E or otherwise. The levers or
supports T are attached to the links V by the pins W. The links V are connected"
by the rods X and the levers Y to the lever Z fixed or pivoted on the signal post F.
The lever Z is connected to the signal a by the rod b. To the lever Z is coupled
the link or rod c pivoted to the double lever d mounted on the fixing e attached to
the signal post F. To the double lever d is coupled the rod or its equivalent f to
connect the same with the lever or handle in the pointsman's cabin or other position
for operating the signal or signals.
This invention operates in the following manner :- When the signala is raised to stop
a train as in Fig. 3 the inclines S are in the position shown in Fig. 2, and as the
locomotive advances the bowl or roller O slides or rolls up the same, which action
raises the rod and rack N; the rack rotating the spur wheel K which swivels the
spindle J and opens the valve H to allow of steam passing through to blow the
whistle or fog horn G as long as the bowl or roller O remains on the incline S,
thus indicating to the driver of the locomotive that the signal is against him
although he may not be able to see it in case of fog or other causes. Immediately
the bowl or roller O is released or passes beyond the incline S the valve H is closed
instantly by means of the spring k which depresses the rod and rack N and places
the same in its normal position ready for the next incline that may be placed in
position by operating the signal to stop a train. The inclines S are placed on each
side of the rails or track as shown in Fig. 2 to allow of the whistle or fog horn G
being blown or sounded according to the way the locomotive may be running.
When the signal a is down to show that the line or track is clear the inclines S are
moved laterally out of the path of the bowl or roller O by means of the levers T.
The frame M is fitted with the screw I, handle m, and lock nut n for the purpose
of locking the rod and rack N in position for continually sounding the whistle or
fog horn G, or for raising and holding the sanie sufficiently high as not to operate
the same and out of the way of the inclines S as would be necessary in fine or clear
weather. In the latter case steam may be shut off by the tap or valve P on the
pipe I. If desired the whistle or fog horn G may be blown by air from the
Westinghouse or other air brake apparatus, which may be easily effected by
coupling the tap r and pipe t to the pipe I as shown in Fig. 5; the pipe t being
coupled to the air brake apparatus,

page_text: 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 :-
In combination with a locomotive the use of an automatic fog and signal horn
actuated by movable inclines placed alongside the railway rails or track and
operated by the signalling apparatus, substantially as described and as illustrated
in the annexed drawings.
Dated the with October 1893
EDMUND CHADWICK, F.I.C.P.A.,
Agent.