Year: 1886

page_text: I JOHN FREDERICK DUKE of. 85 Boyson Road Walworth in the County of
Surrey Engineer do hereby declare the nature of this invention to be as
follows:-
}
This Invention has for its object the storing of the power which at present is lost
in, braking and in utilizing such power for starting tram cars thereby taking the
great strain off the horses and enabling the tram cars to start at their usual speed
thereby saving in the course of a journey considerable time and energy.
.
In order to carry out this object I use a suitable drum or wheel having a tube for
its axis which tube revolves round the axle of the car. One end of a powerful
spring is fixed to the inside of the drum the other end of the spring being fixed to
the tube. To this tube (but quite free from the spring drum) a clutch, ratchet is
fixed. The clutch is squared but slides longitudinally on the axle and is simul-
taneously thrown into gear when the brake is applied by suitably constructed
forks which are fixed to the brake. Between the clutches a spring is placed for
keeping them out of gear until the brake is applied. Another clutch is mounted'in
the same manner on the other side of the drum, and is continually kept in gear by
a spring.
=
The driver applies the brake by means of a suitable lever to the spring drum at
the same time throwing the clutch by means of the forks into gear with the ratchet
clutch which winds the spring inside the drum.
As soon as the spring has sufficient power stored in it for starting the car the
drum box will revolve with the axle and the brake will act on it as on an ordinary
wheel.
,
When the driver releases the brake the spring is kept from recoiling at its axis
by a pawl fixed to the bottom of the car the power stored in the spring will
consequently be transmitted to the drum which in its turn transmits it by the
clutch to the axle in the same direction in which the spring was wound thus in a
simple and efficient way propelling the car.
Dated this 24th day of April 1886.
TONGUE & BIRKBECK,
Agents for the Applicant.

page_text: A Combined Brake and Starting Apparatus for Tramcars.
I JOHN FREDERICK DUKE of 85 Boyson Road Walworth in the County of
Surrey England 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:-
. 1
"
This invention has for its object the storing of the power at present: lost in
braking and in utilising such power for starting tramçars or other vehicles of a like
nature thereby taking the great strain off the horses, and enabling the tramcars to
start at their usual speed, thereby saving in the course of a journey considerable
time and energy.
In order to carry out this object, I use a suitable drum or wheel a (as represented
in the drawings hereto annexed), this wheel or drum.a has for its axis a tube a¹
which in its turn revolves round the axle as of the vehicle.
One end of a powerful, spring is fixed to the inside of the drum a the other end
being fixed to the tube a¹.
To this tube a, but quite free from the spring drum a a clutch ratchet 61
is fixed.
+
The clutch 61 is squared, but slides longitudinally on the axle a³ and is thrown
into gear when the brake d is applied by suitably constructed forks c c which are
fixed to the brake d
Between the clutch b' and the clutch ratchet ba spring is placed for keeping them
out of gear until the brake is applied. Another clutch e is mounted in the samé
manner as the clutch 61 on the other side of the drum, and is continually kept in
gear by a spring e².
The driver applies the brake d to the spring drum a by means of a suitable
lever, this at the same time throwing the clutch 61 by means of the forks cc into
gear with the ratchet clutch b which winds the spring inside the drum. As soon
as the spring has sufficient power stored in it to start or assist to start the vehicle
the drum will revolve with the axle and the brake act on it as on an ordinary
wheel.
ecoiling
uf 2
When the driver releases the brake, the spring" kept from recoiling at its axis
by a pawl f fixed to the bottom of the vehicle g acting on the ratchet b; "the power
stored in the spring, will consequently be transmitted to the drum which in its turn
by the clutch e transmits it to the axle in the same direction in which the spring
was wound, thus in a simple and efficient way propelling the vehicle.
I would remark that I do not limit myself to the exact details herein described
so long as the broad character and principle of my invention is retained.

page_text: Having now particularly 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. The combination of a brake and starting apparatus for tramcars and other
vehicles of a like nature arranged to act substantially in the manner and for the
purpose herein before described and represented in the drawings annexed.
2. In a tramcar or similar vehicle the transmitting of the stored up power on the
same axle in the same direction in which it is accumulated substantially as and for
the purpose herein before described.