Improvements in or connected with Bicycles.
Year: 1893

page_text: Date of Application, 30th Sept., 1893
Complete Specification Left, 2nd July, 1894-Accepted, 4th Aug., 1894
Improvements in or connected with Bicycles.
I, MIKAEL PEDERSEN, of Kingsley House, Dursley, in the County of
Gloucester, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to bicycles and has for its object to construct the frame
in such a manner that a frame calculated to carry a given weight may be made
much lighter than heretofore.
According to my invention the frame comprises a portion (hereinafter referred to
as the rear wheel bracket) composed of two parallel or nearly parallel bars, one
end of which carries the journal or bearing of the rear or driving wheel whilst the
front end carries the journal or bearing for the pedal shaft. To the front end of
the said rear wheel bracket adjacent to the pedal shaft bearing are connected
three forked frame sections, two of which are connected with the front wheel fork
and are supported thereon in such a manner that the said fork can be turned for
the steering of the machine. The third of the said frame sections extends rear-
wards into such a position that it serves, in conjunction with a forked stay extending
from the rear end of the rear wheel frame, for supporting the seat which is
suspended between the ends of the third frame section and stay.
In order that the weight upon the seat shall not draw the suspension points of
the saddle too close together a light bar, wire, cord or the like is attached to the
extremity of the said third frame section and to the rear end of the rear wheel
bracket at each side of the wheel.
The front wheel fork is composed of two double triangular parts, or of two single
bars, suitably connected together at or near the centre of their length and united
at their upper ends.
In the case of a machine adapted for use by men the upper end of the front
wheel fork is jointed to the point at which the seat stay and the central forked
frame section meet.
In the case of a machine intended for use by ladies where it is necessary to
provide considerable space between the seat and the steering fork, the said stay,
from which the front end of the seat is suspended, is not connected to the top of
the steering fork, in which case additional triangular struts are provided extending
from the rear end of the rear wheel frame to the third frame section, thence to
the second or central frame section, and thence to the extremity of the first or
front frame section.
The handle bar is preferably attached to the front wheel fork so low down that
it will cause as little twist as possible of the front wheel fork when steering the
machine and at the same time serve as a foot rest.
My improved frame may be made of metal or partly of wood and partly
of metal.
I may in some cases provide suitable struts from which a second seat may be
suspended to form a tandem bicycle.
The saddle which I advantageously employ is composed of a series of cords
or strings at one end connected to a bent bar and at the other end to a common
point.
Dated this 20th day of Contoh 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.

page_text: Improvements in or connected with Bicycles.
1, MIKAEL PEDERSEN, of Kingsley House, Dursley, in the County of
Gloucester, Engineer, 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 aud by the following statement :-
My invention relates to bicycles and has for its object to construct the frame in
such a manner that a frame calculated to carry a given weight may be made
much lighter than heretofore.
In the accompanying drawings,
Figure 1 is a side elevation of a bicycle having the frame constructed according
to my invention; and,
Figure 2 is a front elevation of the same:
Figure 3. is a perspective view of my improved bicycle frame detached; and,
Figures 4 and 5 are views illustrating a detail:
Figure 6 is a view illustrating a modification; and,
Figure 7 is a plan view of a saddle which I advantageously employ.
My improved frame comprises a rear wheel bracket a composed of two nearly
parallel bars b, b secured at their front ends to sockets c, c formed upon a casting
or forging d in which the pedal-shaft is journalled and at their rear ends in
sockets e, e on castings or forgings f,f carrying the axle g of the rear wheel h of
the bicycle, the said castings, being slotted in the usual way to enable the axle
to be adjusted relatively with the pedal-shaft for the purpose of tightening the
driving chain.
This
i,j,k are three forked frame sections composed of bars which at their lower
ends are carried in sockets i¹, i, j, j and 'k', ' respectively formed upon the
casting d. The frame sections i, j are connected with the steering or front wheel
fork l, a head m fixed to the top or free end of the frame section bearing upon or
being pivotally connected to the upper end of the said fork whilst the frame
section is connected with the said fork by means of a knuckle joint n.
arrangement of the fork allows the latter to be turned for the purpose of steering
the machine. The third frame section k which extends rearwardly serves with the
head m for supporting the seat o, as shewn, a light bar or a wire or cord
like being attached to the extremity of the frame section k and to the castings f,f
at the two sides of the driving wheel. Instead of the cord d I may arrange a
stay-bar between the head m and the top of the frame section k.
p or the
A forked stay the bars of which at their lower ends are fixed in sockets q', g'
on the castings f, and at their upper ends in a socket q² on the head m serves as
a tie for maintaining the frame section ; and the rear wheel bracket a in their
proper relative positions.
The front wheel fork is preferably composed, as shewn, of two double triangular
portions r, which at their upper ends are united to form a point or centre which
has a bearing in the head m, while their lower ends carry the axle for the front
or steering wheel. At a point corresponding with the bases of the triangles of
each double triangular part is fixed a plate s, as shewn in Figures 4 and 5, which
serves for bracing or connecting the two double triangular parts and to which the
knuckle joint n is connected.
The handle-bar t is attached to the fork at a point some distance from the
upper end, as shewn in Figures 1 and 2, so as to cause as little twist of the said
fork when steering the machine as possible and at the same time to serve as a
foot-rest, the said bar being bent upwards so as to present the handles in the proper
position to be gripped by the rider.
In the foregoing description all the frame sections i, j, k are referred to as being
forked or composed of two bars: if desired, however, single bars may be used

page_text: and in this case the casting d is provided with one set of sockets i¹, j¹, k¹ as shewn
in Figure 6.
From this description and by reference to the drawings it will be seen that my
improved frame consists essentially of a triangle carrying at one end of the base
an axle for the driving wheel, at the other end of the base the bearings for the
treadle-shaft and at the apex the head for the front wheel fork, a stay being
arranged between the said fork and the frame and another stay for supporting one
end of the saddle.
My improved frame may be made of metal or partly of wood and partly of metal.
In some cases where great lightness is required I have found it advantageous to.
employ wooden bars between the various castings.
The saddle which I advantageously employ is composed of a series of cords or
strings as shewn in Figure 7 which represents a plan of the said saddle, the said
cords or strings being at one end connected to a bent bar w provided with.
springs w joined to an eye w' and at the other end to an eye or ringa or otherwise
suitably connected.
Instead of cords or strings v strips or thongs of leather may be used and in
some cases I may employ cross strings or thongs.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. A bicycle frame having a triangular portion adapted to carry the axle for the
driving wheel at one end of the base, the bearings for the treadle shaft at the
other end of the base and the head for the steering fork at the apex, a stay
extending from the casting in which the treadle shaft bearings are formed to the
said steering fork and another stay extending from the same casting and serving to
carry between itself and the head the saddle, a wire, cord or the like being arranged
between the free end of the last mentioned stay and the castings carrying the axle
of the rear or driving wheel, substantially as described.
2. A bicycle frame composed essentially of bars secured to sockets in castings
carrying the rear or driving wheel, the treadle-shaft bearings, and the head,
substantially as described.
3. In a bicycle suspending the saddle between the head and the rear end of a
stay, substantially as described.
4. In a bicycle, forming the front fork of two double triangular parts suitably
united at their upper ends whilst the lower ends carry the axle for the steering
wheel, substantially as described.
5. A bicycle saddle composed of strings, cord, thongs or the like substantially
as described with reference to Figure 7 of the drawings.
6. The manufacture and use of a bicycle substantially as hereinbefore described
and illustrated in the accompanying drawings.
Dated this 2nd day of July 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.