Improvements in Brakes or Stopping Devices for Wheeled Vehicles.
Year: 1891

page_text: Date of Application, 13th May, 1891
Complete Specification Left, 12th Feb., 1892-Accepted, 12th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Brakes or Stopping Devices for Wheeled Vehicles.
I, AARON JOHN PARDON, of 131, Hope Street, Glasgow, in the County of
Lanark, North Britain, Commercial Traveller, do hereby declare the nature of this
invention to be as follows, that is to say :-
My said invention has for its object to automatically prevent a wheeled vehicle
from running down hill excepting under complete control; and it is applicable to
various kinds of wheeled vehicles such as perambulators, child's carriages, invalid's
chairs, tricycles, and also to larger vehicles.
In carrying out my invention according to one modification in the case of a
perambulator or other wheeled vehicle of a kind to be pushed or drawn by an
attendant, I apply a locking device to the centre boss or hub of one of the wheels,
or of cach of a pair of wheels; the device being arranged to assume its locking
position by the action of a spring. The locking device is connected with the
handle by means of which the vehicle is moved, in any convenient manner, such
that on the handle being grasped or moved for the purpose of propelling the vehicle,
the engaging part of the locking device is drawn out of gear leaving the wheel or
wheels free to turn. But if the hand is taken from the handle the spring automatically
reengages the locking device.
The locking device may comprise a simple bolt fitted to slide on a part of the
frame, and one or more notches in the centre boss or hub of the wheel, the spring.
being arranged to press the bolt into a notch. The bolt may be connected by a
rod, or small chain, or cord to a sheath, or blade or lever fitted in connection with
the handle in a manner to be movable by the hand so as to draw out the bolt when
the vehicle is to be propelled. Or the handle with the shaft or shafts by which it
is attached to the vehicle may be made so as to have a small movement relatively,
to the vehicle when either pushed or pulled; and this movement may be arranged to
disengage the locking device.
Instead of the locking device a friction brake acting on the tire of the wheel.
may be arranged in a similar manner.
For large vehicles the locking device is to be applied in connection with a special
lever or handle by means of which it can be engaged or disengaged.
Dated this Twelfth M 1001
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Brakes or Stopping Devices for Wheeled Vehicles.
I, AARON JOHN PARDON, of 131, Hope Street, Glasgow, in the County of
Lanark, North Britain, Commercial Traveller, 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, that is to say:-
My said invention has for its object to automatically prevent a wheeled vehicle
from running down hill excepting under complete control; and it is applicable to
various kinds of wheeled vehicles such as perambulators, child's carriages, invalid's
chairs, tricycles, and also to larger vehicles.
The application of my invention to a perambulator is shown on an accompanying
sheet of explanatory drawings,
Figure, 1, of which is a back end elevation and Figure, 2, a sectional side
elevation, one wheel being supposed to be removed in the latter figure.

page_text: The perambulator shown in the drawings is of a kind arranged for being
generally pushed by an attendant, provision being, however, made to allow of its
being drawn when desired; and it is fitted in an ordinary manner, with a pair of
larger wheels, A, and a pair of smaller wheels, B. I apply a locking device to the
centre boss or hub of one of the wheels, or preferably as shown to the hubs, C, of
the two larger wheels, A. Each hub, C, is made with teeth like a pinion, and in
each casc a lever, D, is arranged to lock the wheel by entering between two teeth.
Each lever, D, is centered on a small block, E, fixed on the axle, F, and is con-
nected by a link, G, to a lever, H, which is centered on a bracket, J, fixed on the
axle, F. The two levers, H, are continued beyond their centres in side rods, or
shafts, K, connected at their upper outer ends by a transverse handle, L. The
weight of the side rods, K, and parts carried by them overbalances that of the
levers, H, and links, G, and tends to raise the inner ends of the catch levers, D,
and depress their outer ends into the toothed bosses, C. Or springs might be
applied to insure that action. When the perambulatoris pushed by means of the
handle, L, the action depresses the levers, H, links,, G, and inner ends of the catch
levers, D, and raises the outer ends of these levers clear of the toothed bosses, C,
so as to allow the wheels, A, to turn. When however the handle, L, is let go the
unbalanced weight of the parts, or the springs if used, cause the wheels to be
locked.
The side rods, K, move in guide slots in brackets, M, fixed to the perambulator
body and the sides of the slots are made with notches with which a bolt, N, on cach
side rod can be made to engage so, as to keep the wheels unlocked when it is wished
to pull instead of pushing the perambulator along. Each bolt, N, works through
a guide, P, fixed on the side rod, K, and is jointed to a bellcrank, Q, centered on the
side rod and having one arm shaped as a handle.
For large vehicles the locking device is to be applied in connection with a
special lever or handle by means of which it can be engaged or disengaged.
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
claim is
1 The providing of wheeled vehicles with mechanism for braking or stopping
them substantially in the manner hereinbefore described.
2 The providing of perambulators, child's carriages, invalid's chairs, and similar
vehicles with stopping mechanism operating automatically by means of a locking
device when the propelling force is absent the parts being arranged substantially as
hereinbefore described and as shown in the accompanying drawings.
Dated this Eleventh day of February 1892.
EDMUND HUNT,
Applicant's Agent.