IMPROVEMENTS IN TRAM CARS AND OTHER VEHICLES
Year: 1885

page_text: AMOS MORONY VEREKER, Gent Wellington Place, Dublin STEPHEN MITCHELL
YEATES 2 Grafton Street, Dublin Optician do hereby declare. the nature of our
invention for IMPROVEMENTS IN TRAM CARS AND OTHER VEHICLES, to be as
follows:-
Our Invention has for its object, improvements in the construction of Tram Cars
& other Vehicles, whereby the strain upon, or effort of the horse or horses to start
the vehicle is reduced. Our said Invention consists of an Automatic arrangement
which acting as a break to stop the Car, stores up the momentum in such a way,
as to be available for starting the Car when required, this being accomplished by
2 Bevel or Spur wheels, fitted on to the axle of the Car & gearing into a third
toothed wheel or rack, governed by a spring, (as in our Specification N° 4502. 84.)
the toothed wheels on the axle are free to revolve & are held in position by
2 ratchets & Pawls, acting in opposite directions. When both Pawls are in action
no matter which way the Car is running the third wheel always revolves in the
one direction & winds up the spring; By a suitable arrangement of Levers the
Driver can throw either or both Pawls into or out of action at will, by putting both
Pawls into action when the Car is running, the one opposed to the motion of the
Car, engages in its ratchet wheel & thus winds up the spring, which is held in that
position by the second Pawl until released by the Driver or Horses when wishing
to start.
AMOS MORONY VEREKER Wellington Place, Dublin Gent. STEPHEN MITCHELL
YEATES 2 Grafton Street, Dublin Optician do hereby declare the nature of our
invention for IMPROVEMENTS IN TRAM CARS & OTHER VEHICLES and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
An Automatic arrangement which acts as a Break & stores up the momentum of
the Car so to be available fonabantian
LL
A

page_text: the Car 2 loose or free running Tooth Wheels, either Bevel Wheels, Spur Wheels or
Contrate Wheels A & A¹, these wheels are each provided with a Ratchet & Pawl,
each acting in opposite directions, as shown in the Figure as R R¹, the Pawls are
fixed to the axle & revolve with it, both wheels A & A' are permanently geared
into a third wheel B (or by placing one wheel on each axle & gearing into a Rack
as in our Specification 4502/84) to the axle of B is attached a strong spring S, by
a suitable arrangement of Levers the Pawls P P' can be put into or out of action at
will, by the Driver of the Car or Vehicle, it is evident that while both Pawls are
out of action, the Car can run in either direction without acting on the wheel B or
spring attached thereto, but by putting both Pawls into action no matter which
way the Car is running, the wheel B always revolves in the one direction &
consequently always winds up the spring. The action is as follows, supposing the
Car running in the direction of the arrow, the Driver wishing to stop, puts both
Pawls into action by the Lever L, the Pawl P opposed to the motion of the Car
engages in its Ratchet Wheel & thus winds up the spring, which is held in that
position by the Pawl P¹, when starting again the Driver has only to withdraw
Pawl P, when the spring immediately comes into action & moves or helps on the
Car in the direction it had been going, the Lever L can also be connected to the
Draw Bar of the Car or Vehicle, so that the first pull or effort of the Horse to start
the Car releases the retaining Pawl, thus making the arrangement automatic.
In all arrangements hitherto where 3 Bevel Wheels or Spur Wheels are used for
reciprocating motion, the change in direction is obtained by shifting one or two of
the wheels, viz. shifting one Pair out of Gear with each other on the one side & into
Gear on the other side, thus requiring considerable attention & adjustment each
time to ensure the teeth of the one wheel falling into the corresponding spaces in
the other. In our arrangement herein described this difficulty is completely
removed, where the wheels on the axle are free to revolve in either direction
& remain permanently Geared at all times. Instead of a metal or Rubber spring
attached to the shaft of the wheel B or Rack as in Specification 4502/84, the
compression or exhaustion of air, or a weight may be used.
Having thus fully described the nature of our said Invention & the manner in
which same is to be performed, we declare that what we claim is
Firstly. The use of 2 Toothed Wheels running free upon the axle or axles &
permanently geared into a third wheel or Rack.
Secondly. The use of double Ratchets & Pawls as described.
Thirdly. The Automatic arrangement for starting the Car as described.
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