Improvements in Tricycles.
Year: 1893

page_text: Date of Application, 7th Nov., 1893
Complete Specification Left, 4th July, 1894-Accepted, 4th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Tricycles.
We, WALTER JOHN LLOYD, and WILLIAM PRIEST, of The Quadrant Cycle
Company, Sheepcote Street, Birmingham, in the County of Warwick, Velocipede
Manufacturers do hereby declare the nature of this invention to be as follows:-
In order that our invention may be the more readily understood we remark that
in tricycles as ordinarily made the principal shaft or axle is supported from that
part of the framing called the bridge by four bearings the part of each bearing
called the sleeve being fixed to the shaft and the part called the case being fixed
to the bridge. The ends of the shaft pass through the hubs of the wheels and are
fixed in position by screw nuts on their screwed ends. The sleeves of the bearings
are fixed on the shaft by screwing.
According to the improvements constituting our invention we make on the inner
side or face of the inner spoke flange of the hub of the wheel a tubular socket
screwed internally and externally the said socket being made solid to or in one
piece with the said hub. The end of the shaft screws into the said socket on the
hub. The sleeve of the bearing adjacent to the inner flange of the hub is screwed
on to the said socket. The bearing adjacent to the wheel is thus fixed upon a
socket which forms an integral part of the hub of the wheel and a strength and
rigidity is thereby given to the hub and sleeve of that bearing on which the weight
is mainly thrown unattainable by the ordinary method of construction. Although
we have described only one bearing adjacent to the inner spoke flange of the hub
of one wheel it will be understood that the method of construction described is
applied to each of the bearings adjacent respectively to the inner spoke flange of
the hubs of the two principal wheels of the tricycle.
The other or intermediate bearings of the shaft are made in the ordinary way.
Improvements in Tricycles.
We WALTER JOHN LLOYD and WILLIAM PRIEST, of The Quadrant Cycle
Company, Sheepcote Street Birmingham, in the County of Warwick, Velocipede
Manufacturers do hereby declare the nature of our invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
In order that our invention may be the more readily understood we remark that
in tricycles as ordinarily made the principal shaft or axle is supported from that
part of the framing called the bridge by four bearings the part of each bearing
called the sleeve being fixed to the shaft and the part called the case being fixed
to the bridge. The ends of the shaft pass through the hubs of the wheels and are
fixed in position by screw nuts on their screwed ends.
According to the improvements constituting our invention we make on the inner
side or face of the inner spoke flange of the hub of the wheel a tubular socket
screwed internally and externally, the said socket being made solid to or in one
piece with the said hub. The end of the shaft screws into the said socket on the

page_text: hub. The sleeve of the bearing adjacent to the inner flange of the hub is screwed
-onto the said socket. The bearing adjacent to the wheel is thus fixed upon a
socket which, forms an integral part of the hub of the wheel and a strength and
rigidity is thereby given to the hub and sleeve of that bearing on which the weight
is mainly thrown unattainable by the ordinary method of construction.
Figures 1 and 2 of the accompanying drawing represent vertical sections (partly
in elevation) taken in planes at right angles to one another of one of the end bearings
of the principal shaft or axle of a tricycle containing our improvements, the parts
-constituting our present invention being represented in connection with a swivelling
bearing of the kind described represented and claimed in our Complete Specification
No. 20988 year 1893; Figures 3 and 4 represent the parts constituting our present
invention detached.
The same letters of reference indicate the same parts in the several figures of
the drawing.
a, a³, as is the hub of one of the principal wheels of a tricycle, a being the outer
spoke flange of the hub and a being the inner spoke flange is the bearing
case carried by the swivelling bearing arrangement c herein before referred to, the
said swivelling bearing arrangement being connected by its ring or loop c² to the
bridge of the tricycle frame. We form on the inner side of the inner spoke
Hange as of the hub of the wheel the tubular socket d the said socket being screw
threaded internally and externally, the screw threads being cut in opposite
directions; that is to say, the external screw thread is preferably right handed and
the internal screw thread left handed. The sleeve or rotating part e of the bearing
takes onto the screwed socket d and the screwed part 2 of the axle f is screwed
into the said socket, the parts occupying the positions in the bearing represented
in Figures 1 and 2. In addition to the securing of the axle to the hub by the
screwed part f the protruding screwed end of the axle is provided with the
ordinary screw nut g.
By the construction and arrangement of the parts described the weight on the
tricycle instead of being thrown, at the parts adjacent to the hubs of the principal
wheels, onto the axle is thrown onto the said hubs, and a strength and rigidity
is given to the said hub and sleeve unattainable by the ordinary method of
construction.
Although we have described and represented only one bearing adjacent to the
inner spoke flange of the hub of one wheel it will be understood that the method
of construction described is applied to each of the bearings adjacent respectively to
the inner spoke flange of the hubs of the two principal wheels of the tricycle. The
other or intermediate bearings of the shaft are made in the ordinary way. And
we wish it to be understood that although we have represented our improvements
in connection with a swivelling bearing yet they may be applied to the ordinary or
.fixed end bearings of the principal shafts or axles of tricycles.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that we claim
.as our invention of;-" Improvements in tricycles" ;--
Forming on the inner side of each of the inner spoke flanges of the hubs of the
two principal wheels of tricycles, a tubular socket screwed internally and externally
the said sockets taking outo screwed parts near the ends of the principal shaft or
axle of the tricycle and receiving externally the sleeves or rotating parts of the
end bearings of the said tricycle substantially as and for the purpose hereinbefore
described and illustrated in the accompanying drawing.
Dated the Twenty-ninth day of June 1894.
WALTER JOHN LLOYD.
WILLIAM PRIEST.