Improvements in and relating to the Frames of Velocipedes.
Year: 1899

page_text: Improvements in and relating to the Frames of Velocipedes.
I, GEORGE LEONARD MORRIS, of 10, Granville Square, London, in the County
of Middlesex, Cycle Manufacturer, do hereby declare the nature of this invention
to be as follows..
This invention relates to an improved construction of main frame for that type
of velocipede known as a rear-driving safety bicycle.
This improved frame consists essentially of a socket adapted to form part of
the steering head, of a single tubular member extending downwards and rear-
wards carrying the pedal-crank axle bracket, of a single tube extending upwards.
from the pedal crank axle to carry the seat pillar forming what is commonly
known as the " diagonal," of a fork extending rearwards from the pedal-crank
axle bracket to carry the rear driving wheel commonly known as the "lower
back fork "which said fork may be united to form one member between the
periphery of the driving wheel and the pedal-crank axle bracket, of a pair of
members extending in a direct line between the rear ends of the lower back
fork ie, the axle of the driving wheel and the top of the socket forming part of
the steering head, forming both what is commonly known as the "upper back
fork" and the top member of the frame, and of a single or double member
extending from the bottom of the socket forming part of the steering head to the
top of the diagonal carrying the seat pillar. These various members being braced
or fixed together where they cross or intersect.
As an alternative construction the two members extending in a direct line
between the axle of the rear driving wheel and the top of the socket forming
part of the steering head may be combined to form a single member beyond the
periphery of the driving wheel.
As a further modification I sometimes carry a single or double member from
the point of juncture of the "diagonal" with the member extending from the
centre of the rear driving wheel to the top of the socket forming part of the
steering head to any convenient part of the "lower back fork" approximate to
the periphery of the driving wheel, which said member I find useful when the
distance between the pedal-crank axle and the axle of the driving wheel is
increased which is the present tendency in order to obtain a lengthened wheel
base.

page_text: Improvements in and relating to the Frames of Velocipedes.
I, GEORGE LEONARD MORRIS, of 16, Granville Square, London, in the County
of Middlesex, Cycle Manufacturer, 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:-
This invention relates to an improved construction of main frame for velo-
cipedes and more particularly to that type of velocipede known, as a rear-driving
safety bicycle.
Referring to the accompanying drawing which illustrates a main frame of
a rear-driving safety bicycle constructed according to this invention, the frame
consists essentially of a socket A adapted to form part of the steering head, of
a member B-which may be either single or double-extending downwards and
rearwards from the bottom of the socket A to the pedal-crank axle bracket X;
of a member C-which may be either single or double-extending upwards
from the pedal-crank axle bracket X to carry the seat pillar Y and forming what
is commonly known as the "diagonal," of a fork D extending rearwards from the
pedal-crank axle bracket X to carry the axle % of the rear driving wheel com-
monly known as the lower back fork," which said fork may alternatively be
united to form a single member between the periphery of the driving wheel and
the pedal-crank axle bracket X, of a member E extending in a direct line
hetween the rear ends of the lower back fork D and the top of the socket A
forming both what is commonly known as the "upper back fork" and the top
member of the frame, which said member is double i.e., forked, to a convenient
point bevond the periphery of the driving wheel, but may be either single or
double beyond that point, and of a member F-which may be either single or
double connecting the bottom of the socket A and the top of the diagonal
member C. These various members are braced or fixed together where they
cross or intersect, by means of suitable junction pieces.
As a modification I sometimes connect the point where the members C and E
intersect with the forked member D approximate to the periphery of the driving
wheel by a member such as G shown in dotted lines which member may be
either single or double. This additional member I find useful when the distance
between the pedal-crank axle and the axle of the driving wheel is increased
which is the present tendency in order to obtain a lengthened wheel base.
As a further modification I sometimes connect the pedal-crank axle bracket X
with the point where the members E and F intersect, by a member such as H
as shown in dotted lines which member may be either single or double. Similarly
I sometimes connect the point where the members B and meet the socket A
with the point where the members C and E intersect by a member such as J
as shown in dotted lines which member may be either single or double.
It will be understood that although I have described and illustrated a rear-
driving bicycle frame my invention is also applicable with slight modification or
duplication of the component members to frames for other velocipedes such as
tricycles or tandem bicycles or tricycles.
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) An improved frame for velocipedes consisting of the members A, B, C, D.
E and F constructed and arranged substantially as herein before described and
illustrated by the accompanying drawing

page_text: (2) The modification of the frame claimed by the preceding claim in which
the additional member G is employed.
(3) The modification of the frame claimed by the first claim in which the
additional member H is employed.
(4) The modification of the frame claimed by the first claim in which the
additional member J is employed.
(5) The modification of the frame claimed by the first claim in which two or
more of the members G, H and J are employed.
Dated this 29th day of December 1899.
ROBERT E. PHILLIPS, Assoc.M.Inst.C.E., M.I.Mech. E.,
Chartered Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.