and other Carriages.
Year: 1888

page_text: and other Carriages.
I, JOHN IMRAY of No. 28 Southampton Buildings Chancery Lane in the County
of Middlesex, Consulting Engineer and Patent Agent do hereby declare the nature of
this invention to be as follows:-
My invention relates to a method of and apparatus for lighting railway and other
carriages which I effect in the following manner. I joint a lever at one part of its
length to the carriage body, at another part to an axle or axle box, and at a third part
to a pawl lever engaging a rachet wheel or working the equivalent for pawl or rachet
usually known as "silent feed," so that, as the carriage moves up and down on its
springs the feed wheel is intermittently turned in one direction. This wheel is
arranged to wind up a spring or series of springs which through suitable gearing
drive a dynamo-electric machine, the terminals of which are connected by suitable
conductors to an incandescent electric lamp or to several of these in the carriage.
The spring or springs employed are such as to constitute a reservoir of power
continuing to drive the dynamo-electric machine for some time while the carriage is
at rest, but there may also be an accumulator battery employed to regulate the
current and to continue it for some time after the spring power is exhausted.
Dated this 24th day of February 1888.
ABEL & IMRAY.
Agents for the Applicant.

page_text: A Method of and Apparatus for Electrically Lighting Railway
and other Carriages.
I, JOHN IMRAY of No. 28 Southampton Buildings Chancery Lane in the County
of Middlesex Consulting Engineer and Patent Agent 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 relates to a method of and apparatus for lighting railway and other 5
carriages which I effect in the following manner. I joint a lever at one part of its
length to the carriage body, at another part to an axle or axle box, and at a third part
to a pawl lever engaging a ratchet wheel or working the equivalent for pawl or ratchet
usually known as "silent feed," so that, as the carriage moves up and down on its
springs, the feed wheel is intermittently turned in one direction. This wheel is 1
arranged to wind up a spring or series of springs which through suitable gearing
drive a dynamo-electric machine, the terminals of which are connected by suitable
conductors to an incandescent electric lamp or to several of these in the carriage. The
spring or springs employed are such as to constitute a reservoir of power continuing
to drive the dynamo-electric machine for some time while the carriage is at rest, but
there may also be an accumulator battery employed to regulate the current and to
continue it for some time after the spring power is exhausted.
Fig. 1 of the accompanying drawings is a side view and Fig. 2 is a plan of part
of a railway carriage having apparatus according to my invention applied thereto.
On a bracket A projecting down from the underframing is pivotted a lever B which
rests on or is attached to one of the axle boxes C and extends to the end of the
carriage. A rod D jointed to the end of the lever B, by means of a pawl and ratchet
wheel or silent feed, gives intermittent partial rotation to a shaft E, moving it partly
at every oscillation of the carriage on its springs. In order to utilise oscillations
of the carriage in both directions I prefer to provide a set of the lever B rod D
and ratchet or its equivalent at both sides of the carriage and on each of the two
shafts thus moved to fix bevil wheels gearing with bevil wheels mounted in
a wheel F in the manner of what is known as differential gear, the wheel F being
thus partly moved by an oscillation of the carriage in either direction. The wheel F
works a pinion G which through a spring S or set of springs gives continuous
movement to a wheel H, and this wheel works a pinion K, which may be, as shewn,
on the shaft of a dynamo electric machine L or connected thereto by additional
multiplying gear. The electricity generated by the machine L supplies glow lamps
in the compartments of the carriage. In order to provide for a supply of light when
the carriage is at rest, an accumulator M is introduced in the circuit with a suitable
governor which cuts it out when it is fully charged. In case of a carriage, having no
axle boxes working in horn plates, but having stationary axles on which the wheels
revolve, the lever B rests on the axle itself or is attached thereto.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what
I claim is :-
1. The herein described method of electrically lighting a railway or other carriage
by utilising the oscillations of the carriage on its springs as motive power for a
dynamo electric machine.
2. For working a dynamo electric machine by the oscillations of a carriage, the
combination of a lever pivotted on the carriage and resting on an axle box, a pawl and
ratchet or equivalent device converting the oscillations of the lever into partial rotary
movements, and gearing and springs for multiplying these movements and rendering
them continuous substantially as described.
Dated this 22nd day of November 1888.
ABEL & IMRAY,
Agents for the Applicant.