Improvements in Bioyoles.
Year: 1893

page_text: Date of Application, 31at Jan., 1893
Complete Specification Left, 17th Apr., 1893-Accepted, 20th May, 1893
Improvements in Bioyoles.
A communication from abroad by GEORGE OTIS DRAPER; of Hopedale, County
of Worcester, in the State of Massachusetts, United States of America,
Manufacturer.
I ALFRED GEORGE BROOKES of 55 and 56 Chancery Lane, in the County of
London, Chartered Patent Agent, do hereby declare the nature of this invention to
be as follows :—
Bicycles as now commonly constructed have their frame-works of different sizes,
and by adjustment of the pedal cranks, and the seat and steering parts vertically it
is expected to adapt the bicycle to the particular rider.
In accordance with this invention the bicycle frame is made adjustable in such
manner that the distance from wheel center to wheel center may be readily
adjusted to adapt the same to the requirements of the rider, and preferably the
frame will be telescopic, one part being adapted to slide within or on the other.
This invention consists in the combination in a bicycle, of a bearing for the
steuring shaft, a bearing for the pedal shaft, and a jointed telescopic connection
intermediate the said bearings, for the purposes set forth.
Also, the improved bicycle frame has a jointed telescopic back bone; and a
jointed telescopio connection between the steering shaft bearing and the pedal shaft
bearing, as will be described.
The wheels, the fork or steering shaft, the seat, the steering handle, the standard
or bars, the braces supporting the journal about which turns the hub of the rear
wheel, are and may be all as common in ordinary bicycles.
In my invention the back bone extended from the standard to the steering rod or
wheel fork bearing, is made in two parts so that it may be adjusted longitudinally,
and the rod connecting the said bearing with the bearing at the lower end of the
standard in which latter bearing rotates tho pedal shaft is also made adjustable.
The back bone may be composed of a tube jointed to ears on the upright and of
a rod jointed to ears on the first mentioned bearing, the shank of the said rod fitting
telescopically the said tube suitable clamping devices, which may be either a split
ring with a bolt or screw, co-operating with the said rod and tube, the tube boing
split at one or more places at its end as desired thus enabling the rod and tube to
be clamped together snugly in any desired adjusted position.
The portion of the frame connecting the respective bearings is also made
adjustable, such connection being composed of a pivoted tube, said tubo receiving
in it a rod jointed to ears on the bearing.
The rod and tube composing this connection may be hold in adjusted position by
or through any suitable clamping device as a screw entering preferably cars of' a
split collar embracing a split portion of a tube.
By loosening the screws the wheels may be placed at a greater or less distance
apart, and by pushing either rod more or less into the corresponding tubes, the
joints referred to enabling this to be done, the steering rod bearing may be inclined
more or less from vertical position so as to bring the steering handle in the position
required for the ridor.
My correspondent believing himself to be the first to so construct the frame of a
bicycle that it may be adjusted in length between its wheel centers or between the
center of rotation of the front wheel and center of rotation of the pedal shaft, such,
my invention, is not limited to the exact mechanical form in which it is described

page_text: as being embodied; but my invention is and may readily be adapted to the various
different frame constructions of different bicycles on the market.
According to a modification the back bone is composed of two small rods, each
jointed to the upright, as described, of the tube, the said small rods having a hub
provided with a suitable socket to receive the rod, jointed to the bearing, as
described of the like rod in the preceding arrangement a suitable crank or set screw
confining the socketed rod in adjusted position with relation to the small rod jointed
to the upright.
In the different forms in which I have embodied my invention the frame-work is
made telescopic between wheel centers, and by the term "telescopic " I mean any
form of device which will permit of adjustment longitudinally of one part of the
frame-work carrying one wheel center with relation to another part of the frame-
work indirectly controlling or carrying the other wheel center.
Dated the 30th day of January 1893.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Bioyoles.
A communication from abroad by George Otis DRAPER, of Hopedale, County
of Worcester, in the State of Massachusetts, United States of America, ¿
Manufacturer.
I, Alfred George Brookes of 55 and 56 Chancery Lane, in the County
of London, Chartered Patent Agent, 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 :-
Bicycles as now commonly constructed have their framo-works of several
different sizes and by adjustment of the pedal, crauks, and the sent and steering
parts, vertically, it is expected to suit most riders.
The invention consists essentially in a bicycle frame having a jointed telescopic
backbone, and a jointed telescopic connection between the steering shaft bearing and i
the pedal shaft bearing, substantially as will be described.
Fig. 1 in side elevation represents a bicycle embodying one form of the
invention, and
Fig. 2 is a modification to be described.
e
The wheels a, b, the fork or steering shaft, the seat d, the steering handle
the standard or bars, the braces and supporting the journal about which turns
the hub of the rear wheel, are and may be all as common in ordinary bicycles.
"
In this invention the backbone extended from the standard to the steering rod
or wheel fork bearing c¹, is made in two parts so that it may be adjusted
longitudinally, and the rod connecting the said bearing e' with the bearing m³ at
the lower end of the standard in which latter bearing rotates the pedal shaft m is
also made adjustable.
The backbone in Fig. 1 is represented as composed of a tube n jointed at 2 to
ears on the upright f, and of a rod jointed at 3 to ears on the bearing e', the shank
of the rod n¹ fitting telescopically the tube n, suitable clamping devices, which may
be either a split ring with a bolt or screw as 4, co-operating with the said rod and
tube, the tube being split at one or more places at its end as desired, thus
enabling the rod and tube to be clamped together suugly in any desired adjusted
position.
The portion of the frame connecting the bearings o' and m' is also made
adjustable, and as shown in Fig. 1 in substantially like manner, such connection
being composed of a tube p, pivoted as at 5, sec Fig. 2, said tube receiving in it a
rod p' jointed at 6 to ears on the bearing c'.
g

page_text: The parts g, h, m', p, p', c', are intended to be alike in both Figures 1 and 2.
The rod and tube p may be held in adjusted position by or through any
suitable clamping device as a screw 7 entering preferably ears of a split collar
embracing a split portion of a tube.
By loosening, the screws 4 and 7 the wheels a, b, may he placed at a greater or
less distance apart, and by pushing the rod n' or more or less into the tubes n
and P, the joints referred to enabling this to be done, the steering rod bearing
may be inclined more or less from vertical position so as to bring the steering
handle in the position required for the ridor.
In Fig. 2, the backbone is shown as composed of two small rods r, r, each jointed
to the upright, as described, of the tube a, the said small rods having a hub
provided with a suitable socket to receive the rod jointed to the bearing of as
described of rod a', a suitable crank or set screw 8 confining the rod in adjusted
position with relation to the rod r.
In the different forms in which I have embodied the invention the frame-work is
made telescopio between wheel centres and by the terin "telescopic " I mean any
form of device which will permit of adjustment longitudinally of one part of the
frame-work carrying one wheel centre with relation to another part of the frame-
work indirectly controlling or carrying the other wheel centre.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
A bicycle-frame having a jointed telescopic backbone, and a jointed telescopic
connection between the steering shaft bearing, and the pedal shaft bearing,
substantially as described.
Deted the 17th dow of Anvil 1902
WM. BROOKES & SON,
66 & 56, Chancery Lane, London, Agents for the Applicant.