Year: 1898

page_text: We, CHARLES BEVANS, of No. 92, Highcross Street, Needle Manufacturer, and
JOHN HALLAM, of No. 12, South Albion Street, Engineer, both in Leicester, in the
County of Leicester, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a locking device for the wheels of vehicles such as hand
barrows, trucks, drays, perambulators and the like to automatically lock them when
not in charge of anyone and so prevent the vehicle from running away down a slope
or incline, or from running forwards or backwards when unattended.
The said device, can be attached to any set of wheels whether front or back; and
in swivel lock barrows the back wheels are brought to a dead lock.
In carrying out this invention we make or cause to be made a square, round or
other shaped pin or bolt fastened to or forming part of a bell crank lever pivotally
connected to the frame, body or under carriage, the free end of said lever is connected
to or by a rail, rod or similar contrivance to give it a "lever action " for pulling or
pushing the bell crank lever and disengaging the pin or bolt from one of a number
of sockets round the inside of the rim or felloe of the wheels, said sockets are
distributed at equal distances, four or eight to the circle or more if desired. The pin
or bolt is held down by any suitable spring or springs, and one of the wheels will be
mounted loosely on its axle while the opposite one will be made fast, the "lever
action" to release the "dead lock" may consist of a hand rail for trucks or barrows,
a foot rail or rest for dog traps or similar carriages or cars, or such "lever action "
may proceed upon a person taking his or her seat on the driving box and imme-
diately the seat is vacated the device will automatically come in operation and hold
the wheels.
In vehicles in which the wheels project out from the sides of the body or
frame, the device is modified to suit such construction by a compound lever action
attached to the seat, back splash board or other convenient part of the body. The
bolt holding sockets for iron wheels may be formed with the wheels, but for ordinary
wheels they may be secured by a lip or inward projection, on the felloe and under
the outer rim, or when a horizontal action is desired they may be attached to or
formed with the nave on the inside of the wheels, each socket is made to lead through
so that no grit or dirt may congregate therein.
By the above device no matter which way the wheels are moving upon the vehicle
becoming unattended or left the pins or bolts enter the nearest socket hole in each of
a pair of wheels, and obviates and to practically do away with friction brakes or
braking the periphery of a vehicle wheel altogether.
1000

page_text: We, CHALLES BEVANS, of No. 92, Highcross Street, Needle Manufacturer, and JOHN
HALLAM, of No. 12, South Albion Street, Engineer, both in Leicester, in the County
of Leicester, 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 :-
This invention relates to a locking device for the wheels of vehicles such as hand
barrows, trucks, drays, perambulators and the like to automatically lock then when
not in charge of anyone, and so prevent the vehicle from running away down a slope
or incline, or from running forwards or backwards, when unattended.
That this invention may be clearly understood drawings are annexed in which:
Figure 1 is a cut off view of the underside and front wheels of a hand barrow fitted
with the locking device forming the subject of this invention.
Figure 2 is a side view of same and
Figure 3 a front view of one of the wheels with sockets.
Figure 4 is a back view of a trap showing the locking device attached to the
driving seat, and
Figure 5 is a view of the ring with sockets for mounting upon the hub or nave of
a wheel of such vehicles.
The said device can be attached to any set of wheels whether front or back, or as
shown in Figure 4 to a single set of wheels. In adapting the herein described lock-
ing devices to mail carts, perambulators or the like the sliding inverted V grooved
cam plate is fitted to a spring controlled handle and is conducted to the axle
shaft through a diagonally fitted bracket. In carrying out this invention we cause to
be made or make a square, round or other shaped pin or bolt A to enter each wheel,
said pins or bolts are carried in suitable bearings such as a a¹ secured to the swivel
bearing or undercarriage B of a hand barrow C, or to the axle shaft D of a two
wheeled trap or other vehicle "seen in Figure 4." The turned inner ends or
pins of said bolts fit in the inverted V shaped grooves of the sliding plate or
cam E in which is a vertical guide slot e through which the pin e¹ is passed into the
swivel bearing B or to a hanger e", from the axle shaft, the inner end of the plate E
is pivoted to the lower end of the bell-crank lever F having its fulcrum in the bear-
ings f, to obtain the lever action in conjunction with the rod f passing through a
slot or between the sides of the swivel bracket G, and a roller and pin at the end of
the rod, is fitted in to the right angled slot by the extremities h¹, 2 and h³ of
which are at the same distance from the centre or pivotal connection of the cam H
secured in the bearing end g of the swivel bracket G, into the front or lip end h³ of
the cam H is inserted the handle I of the hand barrow or the like. When said handle
is in the horizontal position, the roller and pin f¹ as seen in Figure 2" is in the
centre of the straight slot, and the bolt heads a² are therefore at the narrow end of
the inverted V shaped grooves, and the bolts are withdrawn from the sockets J of the
wheel. It will be observed that said sockets are distributed at equal distances through
the iron wheel K, or in the annular ring K¹ which fits upon the nave of other wheels
66 seen in Figures 4 and 5."
lt
When the handle is in any other position than the horizontal one the bolt heads a
will be in the wide end of the inverted V shaped grooves, and thus extend the bolts
outwardly that each engage in the nearest socket J in both wheels "see Figure 1.”
The right angled cam H is only employed for vehicles with swing handles.
In applying the invention to traps, carts and the like where the locking device
acts upon each wheel simultaneously upon the person leaving the driving or box
seat L, the bolts or pins A engage in the sockets J₁ in the annular ring K¹ which is

page_text: made of the size to fit upon the nave of the wheel "see Figure 5." The upper end
of the inserted V shaped grooved sliding plate E is attached to a sliding rod M upon
which is coiled the spring n' coming under a cross bar n², or frame of the seat,
immediately the seat is vacated the device will automatically be brought into
operation and lock the wheel. When the driver desires to leave the vehicle to lead
the horse or in other ways to move the trap or other vehicle about a small bolt or the
line O "Figure 4" may be secured in a suitable position for entering a hole in the
box seat L thus holding their apparatus out of action.
To connect the before mentioned device to a foot rest or board of a trap, dray or
other vehicle the top of the sliding plate is linked to a crank lever in order to depress
it.
The bolt holding sockets for iron wheels are by preference formed in the wheels,
but if to act upon the periphery thereof t. ey are formed in the lip k, Figure 1, or
inward projection on the felloe and under the cuter rim.
Each socket is made to lead through so that no grit or dirt may congregate
therein.
By the above device it does not matter which way the wheels may be moving
upon the vehicle becoming unattended, left or standing, the pins or bolts will
enter simultaneously the nearest socket hole in each of the pair of wheels, and
obviates or practically does away with friction brakes or braking the periphery of a
vehicle wheel altogether.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed we declare that what we
claim is:
1. A locking device for the wheels of vehicles whereby. such wheels are auto-
matically locked when standing by bolts centered within inverted V shaped grooves,
of a sliding plate having a guide slot therein, a right angled slotted cam pivotally
connected to a rod and bell crank lever attached to the sliding plate operating by
the rising and falling of the handle and roller moving within the said cam in its
downward or upward motion, said bolts entering sockets in said wheels, all substan-
tially as herein described and set forth.
2. A locking device for the wheels of vehicles whereby such wheels are auto-
matically locked when standing by bolts centered within inverted V shaped grooves
of a sliding plate having a guide slot therein, entering sockets in an annular ring
formed upon the nave of the wheels and operated by a spring, and upon the person
leaving the driving box seat or releasing the foot rest or board, substantially as des
cribed and illustrated in the accompanying drawings.
Dated this stay or
June 1000.
W. BESTWICK MAXFIELD,
Registered Patent Agent,
No. 34 Belvoir Street, Leicester (Applicant's Agent).