Improvements in Braking Devices for Trucks, Carriages, Lorries, and other Vehicles.
Year: 1899

page_text: Date of Application, 31st Jan.,
1899
Complete Specification Left, 31st Oct., 1899-Accepted, 2nd Dec., 1899
PROVISIONAL SPECIFICATION,
Improvements in Braking Devices for Trucks, Carriages, Lorries, and
other Vehicles.
I, EDWARD ROBERTS, of S, Cleveland Street, Bryn, Ruabon, in the County of
Denbigh, Iron Moulder, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object an arrangement of vehicle whereby if the
shaft, shafts, or pole, be dropped beyond a given point the brake shall be auto-
matically put on to the wheels. It is especially applicable to platform trucks,
making it impossible for a platform truck left on the platform or incline, to run
away through an accidental push or a parcel falling against it, and will prevent
it being set in motion by the vibration of passing trains.
The traction and guiding handle of this truck is hinged to the bogie or turn
plate fixed to the axle, or is hinged to the axle direct. Its end abuts against a
plate on the bar carrying the brake blocks, which itself is carried on pins on the
axle. When the handle drops the projection on the handle presses against this
plate, and so presses the two blocks with considerable force against the wheels.
The brake block is normally kept off the wheels by a spring attached to the under
side of the guiding handle. In order to enable the blocks to be applied to the
hind axle too when required, a brake block similarly carried on the hind axle
by means of pins or their equivalent is connected with a bar or bars to a quadrant
or link in which works a pin on the guiding handle. By the fall of the guiding
handle this pin comes forward, thus pulling the bar and putting on the hind
brake at the same time the fore brake is put on. In lorries the pole or the shafts
can be arranged in a similar manner, namely, with a projecting pin and beak or
either of them, for the purpose of pulling or pushing on the brakes respectively.
It must also be clearly understood that the beam carrying the front brakes can
be attached direct to the guiding handle, the guiding handle with it thus forming a
sort of bell crank. By the falling of the handle the short lever of the bell crank,
namely, the brake bar is pressed back pressing the brake against the wheels. By
this means the use of the spring can be avoided. Where shafts are used instead
of a guiding handle as in carriages a cross bar on the shafts can be used to carry
the brake beam or the beak presses against the brake beam.
Dated the 30th day of January 1899.
Improvements in Braking Devices for Trucks, Carriages, Lorries, and
other Vehicles.
I, EDWARD ROBERTS, of S, Cleveland Street, Bryn, Ruabon, in the County of
Denbigh, Iron Moulder, do hereby declare the nature of this invention and in
ГР.8/1

page_text: what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention has for its object an arrangement of vehicle whereby if the
shaft, shafts, or pole be dropped beyond a given point the brake shall be auto-
matically put on to the wheels. It is especially applicable to platform trucks,
making it impossible for a platform truck left on the platform or incline to run
away through an accidental push or a parcel falling against it, and will prevent
it being set in motion by the vibration of passing trains.
The invention will be understood from the following description, reference being
had to the accompanying drawings, in which,
Figure 1 is a sectional elevation of my invention applied to a platform truck
with the brake on;
Figure 2, a similar view showing the brake off;
Figure 3, a top plan of the truck:
Figure 4, a plan of the under side of the truck ;
Referring to these figures, A is the truck body, B the wheels, C the guiding
or traction handle. This handle is hinged at D to the turn plate E and its end e
abuts against the plate on the bar carrying the brake blocks G, which itself is
carried on pins H on the axle I. When therefore the handle C drops, the pro-
jection on the handle presses against this plate and so presses the blocks G
against the wheels B. In order to enable the blocks to be applied to the hind
wheels also when required, the brake blocks similarly carried on the hind axle
by means of pins H or their equivalent are connected by bars J to a quadrant K
in which works a pin L on the guiding handle C. By the fall of the guiding
handle this pin comes forward, thus operating the bar and putting on the hind
brake at the same time the fore brake is put on. The handle may if desired be
weighted so as to apply the brake blocks with greater force. The quadrant K
allows the handle free movement for turning. N is a rod, and M a spring which
couples the handle with the bar that carries the brake blocks, so that when the
handle is raised, it pulls the brake blocks out of contact with the wheels.
By this arrangement therefore when the handle is raised by the attendant in
drawing the truck along, the brake shoes are removed from the wheels. but
immediately the attendant has finished with the truck and allows the handle to
fall, the weight of the handle falling will apply the brake shoes to the wheels
and so lock them and prevent the truck moving along the platform by gravity, as
is so liable to be the case when the surface of the platform slopes in the direction
of the line. Any possibility of the truck accidentally rolling over the edge of a
platform in front of a train is thus prevented.
In lorries the pole or the shafts can be arranged in a similar manner, namely,
with a projecting pin and beak or either of them, for the purpose of pulling or
pushing on the brakes respectively. It must also be clearly understood that the
beam carrying the front brakes can be attached direct to the guiding handle, the
guiding handle with it thus forming a sort of bell crank. By the falling of the
handle the short lever of the bell crank, namely, the brake bar is pressed back
pressing the brake against the wheels. By this means the use of the spring can
be avoided. Where shafts are used instead of a guiding handle as in carriages a
cross bar on the shafts can be used to carry the brake beam or the beak presses
against the brake beam.
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 improvement in braking devices for trucks and other vehicles, which
consists in hinging the traction handle, shaft or the like to the bogie or turn
plate, or to the front axle direct, and in forming it at the hinged end with a
projection or beak, so arranged that when the handle is dropped it abuts against

page_text: the bar that carries the brake blocks and so applies the brake, in combination
with means for connecting the handle to the brake beam, whereby when the handle
is raised, the brake blocks will be pulled out of contact with the wheels, substan-
tially as described.
2. In braking devices for trucks and other vehicles, the device for applying the
blocks to the hind wheels of the vehicle which consists in providing in proximity
to the traction handle, shaft or the like, a longitudinally sliding quadrant K in
which works a coupling pin on the said handle, and in connecting this quadrant
by rods with the beam that carries the hind brake blocks, the arrangement being
such that when the handle falls the pin comes forward, thus pulling forward the
quadrant and applying the brake, the quadrant allowing free movement of the
handle for turning, substantially as described,
3. The general combined arrangement and construction of parts forming my
improved braking device for trucks and the like substantially as set forth.
Dated this 30th day of October 1899.
WM. P. THOMPSON & Co..
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.