bulators and Bath Chairs and other like Vehicles.
Year: 1886

page_text: Date of Application, 20th Nov., 1886.
Complete Left, 13th Aug., 1887.
Complete Accepted, 13th Sept., 1887.
bulators and Bath Chairs and other like Vehicles.
I WILLIAM HENRY DUNKLEY of Jamaica Row Birmingham in the County of
Warwick Perambulator and Carriage Manufacturer do hereby declare the nature of
this Invention to be as follows:-
My invention consists of the improvements in and appliances used with the axles
of perambulators and Bath chairs and other like vehicles herein after described.
Instead of making the axle of a solid bar of iron or steel by forging as usual I
make the axle of an iron steel or brass tube to which the bearing blocks for the
springs are affixed together with the collars between which the hubs of the wheels are
placed and secured.
I make the bearing blocks for the springs in the manner herein after described
and in order to permit of the wheels being readily fixed to and detached from the axle
the fixing parts are constructed in the following manner. The tubular axle is slit
longitudinally or has an open joint for a short distance at the ends where the wheels
are to be secured and each split end of the axle is screwed internally with a concave
screw thread for receiving a taper locking screw pin. The wheel having been placed
on the end of the axle and against the back collar on the axle the outer or front
collar is placed on the end of the axle and against the hub of the wheel. By now
driving the locking screw pin into the axle its split end is expanded so as to fit tightly
in the front collar and by further driving home the said screwpin it works so tightly
in the end of the axle that its unscrewing by the jarring of the perambulator or Bath
chair or vehicle is prevented. The wheel is thus secured between the two collars on
the axle. The bearing blocks for supporting the ends of the carriage springs are
tubular at their lower parts and the said blocks are fixed in their places either by

page_text: driving them upon the tubular axle or shrinking or brazing them thereon. The
upper face of each bearing block has side lips or projections for supporting laterally
the end of the spring and by means of a screw on the upper face of the bearing block
and a screw nut the end of the spring is fixed firmly on the said block.
The back collar against which the wheel bears is either loose upon the axle or fixed
its position being determined by a tubular distance piece between the said collar and the
bearing block for the spring but the back collar and the distance piece may be omitted
and the bearing block for the spring may serve as the back abutment for the wheel
the wheel in this case being situated between the said block and the front collar.
Dated this Twentieth day of November 1886.

page_text: Improvements in and Appliances Used with the Axles of Peram-
bulators and Bath Chairs and other like Vehicles.
I WILLIAM HENRY DUNKLEY of Jamaica Row, Birmingham, in the County of
Warwick, Perambulator and Carriage Manufacturer do hereby declare the nature of
my Invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
My invention consists of the improvements in and appliances used with the axles
of perambulators and Bath chairs and other like vehicles hereinafter described.
Instead of making the axle of a solid bar of iron or steel by forging as usual I
make the axle of an iron, steel or brass tube to which the bearing blocks for the
springs are affixed together with the collars between which the hubs of the wheels
are placed and secured.
I make the bearing blocks for the springs in the manner hereinafter described and
in order to permit of the wheels being readily fixed to and detached from the axle
the fixing parts are constructed in the following manner. The tubular axle is slit
longitudinally or has an open joint for a short distance at the ends where the wheels
are to be secured and each split end of the axle is screwed internally with a concave
screw thread for receiving a taper locking screw pin. The wheel having been
placed on the end of the axle and against the back collar on the axle the outer or
front collar is placed on the end of the axle against the hub of the wheel. By now
driving the locking screw pin into the axle its split end is expanded so as to fit
tightly in the front collar and by further driving home the said screw pin it works so
tightly in the end of the axle that its unscrewing by the jarring of the perambulator
or Bath chair or vehicle is prevented. The wheel is thus secured between the two
collars on the axle. The bearing blocks for supporting the ends of the carriage
springs are tubular at their lower parts and the said blocks are fixed in their places
either by driving them upon the tubular axle or shrinking or brazing them thereon.
The upper face of each bearing block has side lips or projections for supporting
laterally the end of the spring and by means of a screw on the upper face of the
bearing block and a screw nut, the end of the spring is fixed firmly on the said
block.
The back collar against which the wheel bears is either loose upon the axle or fixed,
its position being determined by a tubular distance piece between the said collar and
the bearing block for the spring but the back collar and the distance piece may be
omitted and the bearing block for the spring may serve as the back abutment for the
wheel, the wheel in this case being situated between the said block and the front
collar.
Figure 1 of the accompanying Drawing represents in perspective one half of a
perambulator or Bath chair axle and appliances connected therewith constructed
according to my invention; Figure 2 represents a longitudinal section and end
elevation of the same and Figure 3 represents a cross section of the same taken
through the bearing block for the spring. In Figures 1 and 2 the locking screw pin
is represented partly driven home in the end of the axle: B is the tube of iron steel
or brass constituting the axle and A is the tubular bearing block for supporting the
lower end of the carriage spring D, the said block A being fixed in its place either

page_text: by driving it upon the tubular axle or shrinking or brazing it thereon. The upper
face of the bearing block A is furnished with a screw E on which a fixing screw nut
is screwed, the outer edge of the said block having lips or projections A' for supporting
laterally the end of the spring D fixed on the block. After the hole in the end of the
spring has been passed over the screw E and the side of the spring seated against the
lips or lateral bearings A2, the screw nut is screwed upon the screw E as represented
and the spring is thereby firmly fixed in its place. Both springs of the perambulator
or Bath chair or like vehicle are fixed in the same way.
Or the tubular bearing blocks A for supporting the springs may have flaps made
upon them, the ends of the said flaps being furnished with holes through which the
fastening screw pins are passed for fixing the spring upon the blocks. This
modification is represented in cross section in Figure 4 where the flap is marked A³.
F, F are the collars on the end of the axle between which the wheel is placed and
secured. The smaller inner collar F is either loose upon the axle or fixed, its position
being determined by the tubular distance piece F³. The outer larger collar F2 is
capable of being fixed on the end of the tubular axle which end of the axle is split or
has an open joint for a short distance as shown at B2 Figure 2, and is screwed
internally as represented in the Drawing; C is the locking screw pin which is slightly
taper for fixing the collar F on the split end of the axle B.
In order to secure the wheel on the end of the axle the screw pin C and collar F
are removed and the hub of the wheel is placed on the end of the axle and against the
inner collar F. The outer collar F' is next placed on the axle and against the
hub of the wheel and the taper screw pin C is screwed in the end of the axle and
driven home until its head abuts against the outer collar F. By the driving home of
the taper screw pin C the end of the axle is expanded in the hole in the collar F
which is thus fixed in its place thereby securing the wheel on the axle and locking the
screw pin C securely in its place. By unscrewing the screw pin C and removing the
collar the wheel may be withdrawn from the axle.
The back collar F and distance piece F³ may be omitted and the bearing block A
for the spring may serve as the back abutment for the wheel, the hub of the wheel in
this case being situated between the said block and the front collar F³.
Having now particularly described and ascertained the nature of my Invention and
the manner in which the same is to be performed I declare that I claim as my Invention
of " Improvements in and appliances used with the axles of perambulators and Bath
chairs and other like vehicles.'
First The combination with a tubular axle of tubular bearing blocks for supporting
the lower ends of the springs of the perambulator or Bath chair or other vehicle
substantially as herein before described and illustrated in the accompanying Drawing.
Secondly The combination with a tubular axle of distance pieces and collars F
and F2, or tubular bearing blocks A and collars F2, between which collars or collar
and bearing block the hub of the wheel works and is secured substantially as herein
before described and illustrated in the accompanying Drawing.
Thirdly Making each end of the tubular axle split or open jointed for a short
distance and screwed internally and securing the outer collars F2 on the ends of the
axle and thereby holding the wheels in their places by driving home taper screw
pins substantially as herein before described and illustrated in the accompanying
Drawing.
Dated this Ninth day of Anonat 1887