of Perambulators and other Vehicles
Year: 1885

page_text: тартотошенюш
of Perambulators and other Vehicles..
CHARLES WILLIAM PARKER of Warren Cottage Starcross in the County of
Devon Mechanical Engineer and WILLIAM HENRY DUNKLEY of Jamaica Row
Birmingham in the County of Warwick Perambulator Manufacturer do hereby
declare the nature of our invention for IMPROVEMENTS IN THE MANNER OF
SECURING WHEELS TO THEIR AXLES OF PERAMBULATORS AND OTHER VEHICLES to
be as follows:-
By means of one or more pieces of metal or other suitable substance which by
aid of springs screw or other power engages or passes into a groove formed on the
axle, such pieces of metal or other substance being so constructed as to be readily
withdrawn by the operator from the groove when it is desired to take the wheel
from the axle for convenience of cleaning packing shipping or storage.

page_text: .
of Perambulators and other Vehicles.
We CHARLES WILLIAM PARKER of Warren Cottage, Starcross in the County of
Devon, Mechanical Engineer and WILLIAM HENRY DUNKLEY of Jamaica Row
Birmingham in the County of Warwick Perambulator Manufacturer do hereby
declare the nature of the said Invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
Our invention .consists of the improvements herein after described and illus-
trated in the accompanying Drawings for securing wheels to the axles of
perambulators and other vehicles. The said improvements consist essentially
in making in the axle or in the hub of the wheel, a groove and causing a spring
arm or spring sliding bolt or bolts or spring lever bolts or jaws to take into the
said groove for locking the wheel to the axle, the parts being so constructed as to
be readily withdrawn by the operator from the groove when it is desired to take
the wheel from the axle for convenience of cleaning, packing, shipping or storage.
Figure 1 of the accompanying Drawings représents in side elevation, partly in
. section, one arrangement of our invention for connecting the wheel of a peram-
bulator or other vehicle to its axle.
I
a is the wheel and b the hub of the wheel fitted on the end c of the axle c.'. In
the rear end of the hub band between the rear flange b2 and that on the axle c is
an annular groove d in which the expanded free end e³ of the spring arm e engages
the said spring arm e being secured at e³ to the fixed axle c. By the engaging of the
expanded end e² of the spring arm e with the groove d in the hub b of the wheel
the said wheel is connected to the axle c, c² the said spring arm and groove while
retaining the hub of the wheel on the axle permitting of the rotation of the said
hub upon the said axle.
The face of the expanded end e² of the spring arms is rounded or bevilled and
the rear end of the hub at 62 is also rounded or bevilled so that by the pushing of
the hub b onto the end c* of the axle its bevilled end 63 acting against the bevilled
end es of the spring arm e lifts the said arm and when the hub has been fitted in
its place on the axle c² the end e³ of the spring. arme snaps into the groove d and
thereby secures the wheel to the axle. In order to remove the wheel from the axle
it is only necessary to lift the spring arm e by means of the knob e. The end e²
of the spring arme is thereby withdrawn from the groove d when the wheel is
unfastened and may by a sliding motion be removed from the.axie.
The spring arm may engage with a groove in the end of the axle instead of with
a groove in the hub.
This arrangement of our invention is represented in section in Figure 2 and
front elevation in Figure 3. In this arrangement the spring arm e is fixed to the
bub b (or to one of the spokes of the wheel) instead of to the axle and the
groove d in the axle c² is made at the front of the hub. The acting end e² of the
spring arm e is situated at right angles to the part e and constitutes a sliding plate
or bolt which is guided in its motion by the slot and screw pin at f and the said
plate or bolt may be fixed by driving home the said screw pin. The action of this
arrangement is the same as that first described excepting that when the acting
end of the said spring arm e has been engaged with the groove d to fix the

page_text: wheel on the axle the said acting end e of the spring arm may be locked in its
fastening position by the screw pin at f.
Figure 4 represents another arrangement of our invention in which spring bolts
are made to engage with the groove in the end of the axle instead of a spring arm
and Figure 5 represents an end elevation and a portion of the same.
9, 9 are the sliding bolts working on the end of the hub b. Each bolt has a
semi circular depression made in it for engaging with the groove d in the end of
the axle c². The said bolts g, g are provided with pushers g², g₁ and also with studs
on which the coiled springs h, 1 of the bolts are supported, the said springs
working in depressions in the face of the hub b. By pressing inwards the opposite
ends or pushers g, g of the spring bolts g.g the said bolts are simultaneously with-
drawn from the groove d and the wheel is released and may be withdrawn from
the axle. Or a single spring bolt may be used as illustrated in longitudinal section
in Figure 6 and transverse section in Figure 7 and the bolt separately in Figure 8.
In this arrangement the groove d is made in the middle of the end 2 of the axle c
and the spring bolt h works through the oil cup i on the hub b of the wheel. The
said spring bolt h has at the end external to the oil cup a knob h by the lifting of
which the acting end of the spring bolt h can be withdrawn from the groove d in
the axle c for releasing the wheel as will be understood by an examination of the
Drawing.
Or instead of sliding spring bolts, lever spring bolts or jaws on the hub may be
used for engaging with the groove in the end of the axle as illustrated in side
elevation partly in section in Figure 9 and end elevation in Figure 10; Figure 11
represents one of the lever bolts detached.
In this arrangement the face of the hub.b carries the lever bolts k, k turning on
the same pin or centre and pressed together by the springs m, m fixed to the
hub b the lower arms of the said lever bolts engaging with the groove d in the
end of the axle c. By pressing the tail ends ², k² of the lever bolts, k together,
the said lever bolts are separated and the hub b is released and may be withdrawn
from the alxe.
The lever bolts or jaws may have the shape represented in Figures 12, 13 and 14
and in order to prevent the opening of the bolts or jaws until the wheel is required
to be removed a screw nut pinay be placed on one of the spokes q of the wheel
and when the screw nut p is depressed on the spoke so as to be situated between
the tail ends 2, 2 of the spring bolts, the said nut prevents the opening of the said
bolts and the accidental detachment of the wheel from the axle. By screwing the
screw nut p from between the tail ends 2, * of the bolts k, k the said bolts may
be opened for releasing the wheel.
The fastening mechanism may be covered by the cap r as represented in
Figure 12.
Having now particularly described and ascertained the nature of our invention
and the manner in which the same is to be performed we declare that we claim as
our invention;-
The several arrangements or combinations of parts herein before described and
illustrated in the accompanying Drawings for securing wheels to the axles of
perambulators and other vehicles; that is to say, making in the axle, or in the hub
of the wheel, an annular groove in which groove a spring arm or a spring sliding
bolt or bolts or spring lever bolts or jaws engage for the purpose and substantially
as herein before described and illustrated.
Dated this Eighteenth day of March 1886.
CHARLES WILLIAM PARKER.
WILLIAM HENRY DUNKLEY.