Year: 1888

page_text: We WALTER JOHN LLOYD and WILLIAM PRIEST trading as The Quadrant Tricycle
Company of Sheepcote Street Birmingham in the County of Warwick Velocipede
Manufacturers do hereby declare the nature of this Invention to be as follows:-
Our invention consists of the arrangement or combination of parts herein after
described for supporting the rear driving wheels of bicycles and tricycles.
We will describe our invention as applied to a rear driving safety bicycle to which
it is particularly applicable.
In place of supporting the rear driving wlieel of the bicycle by means of the rear
fork of the backbone as usual we support the rear driving wheel by means of an
independent frame which is capable of ready attachment to and detachment from the
seat post of the backbone. By the use of the said supporting frame the bicycle is
made more portable than when the rear driving wheel is supported in the ordinary
way and affords greater facility for transit storage and repair.
The independent and detachable frame for the rear driving wheel is made in halves
each half being somewhat of a V shape. The halves of the frame are bolted at the
outer ends of their branches on opposite sides of the curved part of the seat post of
the bicycle and the rear driving wheel is situated and works between the said halves
of its supporting frame in the same manner as the said wheel works between the
branches of the ordinary rear fork of the backbone.
When the halves of the supporting frame are bolted the seat post ono of the
branches of each half frame is situated horizontally nearly in the plane of the axis of
the driving chain wheel and the other branch is inclined and its outer end is bolted to
the seat post at the part where the curved lower half joins the straight upper half of the
said seat post.
Each V shaped half of the supporting frame makes with the curved
part of the seat post to which it is bolted a triangular frame thereby obtaining great
strength and rigidity. The outer ends of the branches of each half of the frame are

page_text: furnished with eyes through which the fixing screw bolts are passed and at the joined
ends of the branches of each half frame is a slot in which the spindle of the bush of the
rear driving wheel works.
By removing the screw bolts by which the independent frame is fixed to the seat
post the said frame carrying the rear driving wheel can be detached from the other
part of the bicycle for transit storage or repair.
The supporting frame of the rear driving wheel is easily and expeditiously attached
to and detached from the seat post of the bicycle or tricycle.
Dated this 8th day of September 1888.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: Improvements in Rear Driving Bicycles and Tricycles.
We WALTER JOHN LLOYD and WILLIAM PRIEST trading as The Quadrant "Tricycle
Company of 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:-
Our invention consists of the arrangement or combination of parts hereinafter
described for supporting the rear driving wheels of bicycles and tricycles.
We will describe our invention as applied to a rear driving safety bicycle to which
it is particularly applicable.
In place of supporting the rear driving wheel of the bicycle by means of the rear
fork of the back-bone as usual we support the rear driving wheel by means of an
independent frame which is capable of ready attachment to and detachment from the
seat post of the backbone. By the use of the said supporting frame, the bicycle is
made more portable than when the rear driving wheel is supported in the ordinary way,
and affords greater facility for transit, storage and repair.
The independent and detachable frame for the rear driving wheel is made in halves,
each half being somewhat of a V shape. The halves of the frame are bolted at the
outer ends of their branches on opposite sides of the curved part of the seat post of
the bicycle and the rear driving wheel is situated and works between the said halves
of its supporting frame in the same manner as the said wheel works between the
branches of the ordinary rear fork of the backbone.
When the halves of the supporting frame are bolted to the seat post one of the
branches of each half frame is situated horizontally nearly in the plane of the axis of
the driving chain wheel and the other branch is inclined and its outer end is bolted to
the seat post at the part where the curved lower half joins the straight upper half of the
said seat post. Each V shaped half of the supporting frame makes with the curved
part of the seat post to which it is bolted a triangular frame thereby obtaining great
strength and rigidity. The outer ends of the branches of each half of the frame are
furnished with eyes through which the fixing screw bolts are passed and at the joined
ends of the branches of each half frame is a slot in which the spindle of the hub of the
rear driving wheel works.
Figure 1 represents in side elevation a rear driving safety bicycle the rear driving.
wheel of which is supported by an independent and detachable frame constructed
according to our invention; Figure 2 represents in side elevation and Figure 3 in.
plan the said rear driving wheel and its independent frame and adjuncts, drawn to a
larger scale, detached from the seat post of the backbone of the bicycle.
The same letters of reference indicate the same parts in Figures 1, 2 and 3.
a is the rear driving wheel and the front guiding or steering wheel of the safety
bicycle c is the backbone and d is the seat post the lower part of which is curved.
The independent and detachable frame of the rear driving wheel is marked e e² and ƒ ƒª.

page_text: The said frame is made in halves marked respectively e e² and ƒƒ³ and between the
balves of the frame the rear driving wheel a is situated and works (see the plan
Figure 3) in the same manner as the rear wheel works between the branches of the
ordinary rear fork of the backbone. Each half of the frame has nearly a V shape,
the lower branches e³, f of the halves being horizontal and the other branches e, j
being inclined. The outer ends of the branches of each half frame are furnished with
eyes through which the fixing screw bolts i and are passed and the joined ends
of the branches of each half frame are slotted at for the spindle of the hub of the
wheel a to pass through. The eye ends of the branches of each half of the rear
driving wheel frame are bolted to the curved part of the seat post d of the backbone
in the manner represented in the drawing; that is to say, the inclined pair of
branches ef of the halves of the frame are bolted to the seat post d by the screw bolt i
passed through the eyes of the said branches and through the said seat post d near
the upper part of the curved portion thereof and the horizontal pair of branches e³, f
of the halves of the frame are bolted to the seat post d by the screw bolt / passed
through the eyes of the said pair of branches and through the lower part of the said
seat post.
When the halves ee³; ff of the supporting frame of the rear driving wheel are
bolted to the seat post d each V shaped half of the said supporting frame makes with
the curved part of the said post to which it is bolted, a triangular frame thereby
obtaining great strength and rigidity (see Figure 1): m is the mud guard which is
connected to the curved part of the seat post d by the same bolts i, which connect
the halves of the independent frame to the said seat post..
By removing the screw bolts i, k by which the independent frame is fixed to the
seat post d, the said frame carrying the rear driving wheel a can be detached from
the other part of the bicycle, as illustrated in Figures 2 and 3, for transit storage or
repair.
The supporting frame e, e²; ff of the rear driving wheel a is easily and
expeditiously attached to and detached from the seat post of the bicycle or tricycle.
Having now particularly described and ascertained the nature of our invention
and the manner in which the same is to be performed we declare that we claim
as our invention of "Improvements in rear driving bicycles and tricycles":
Supporting the rear driving wheels of bicycles and tricycles by means of an
independent and detachable frame, the parts of which are constructed and connected
to the seat post of the backbone of the said bicycles or tricycles substantially as
hereinbefore described and illustrated in the accompanying Drawings.
Dated the Fourthi day of May 1889.