Year: 1897

page_text: We, GEORGE HOSKINS, of 5, Wellington Terrace, Woodborough Road, Turner,
and CHARLES EDWIN BRASHIER, of 241, Woodborough Road, Gentleman, both in
the City of Nottingham, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in rear driven safety bicycles and it
has for its main object the reduction of the length of the base line of such vehicles
and improvements in the framing and driving mechanism.
In carrying out this invention the two road wheels are preferably so placed that
only a short space divides their two peripheries. The front steering wheel is
carried in the usual manner in a fork secured to a stalk, which latter is mounted
in a socket or ball head of the usual construction.
The lower end of the ball head is connected to a member of the framing which
is preferably carried downwards parallel to the steering wheel, to about level with
the centre of the said wheel and is then carried upwards preferably parallel to
the rear driving wheel, to a suitable height. The upper and rear end of this
member is connected to the upper end of the ball head, by a straight stay or
member or in a dropped frame or ladies bicycle, the lowest part of the bent member
is connected to the upper end of the ball head, by a straight or bent stay or member
as preferred.
The back wheel axle is carried in forks at the outer ends of two chain stays
extending from the lowest point of the bent member, and the two outer ends of
these chain stays, are connected by back stays, to the junction of the upper stay
or member with the rear upper end of the bent member. Provision is also made
at this point for receiving the seat pin.
Secured on the outer side of each chain stay and preferably at a point about
midway between their two ends is a fixed axle on which is mounted a chain wheel.
The driving cranks are secured to these two chain wheels, and the latter are
connected to chain wheels on each side of the driving wheel hub, by independent
driving chains. The chain wheels are preferably mounted on ball bearings on
their axis, the frame is also preferably strengthened by stays extending from the
points on the chain stays where the chain wheel axles are secured to the junction
of the back stays with the upper members of the framing.
than 1807
BOULT & WADE,
Agents for the Applicant.

page_text: Improvements in Bicycles.
We, GEORGE HOSKINS, of 5, Wellington Terrace, Woodborough Road, Turner,
and CHARLES EDWIN BRASHIER, of 241, Woodborough Road, Gentleman, both in
the City of Nottingham, 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 improvements in rear driving safety bicycles, and it
has for its object the reduction of the length of such vehicles, and also improve-
ments in the construction of the framing and the arrangement of the driving
mechanism.
The invention will be best understood by reference to the accompanying drawings
in which
Fig. 1. is a side elevation of a bicycle constructed according to our invention.
Fig. 2. is a plan partly in section of the driving mechanism and part of the
framing.
Fig. 3. is a side elevation showing alternative driving mechanism.
Like letters indicate like parts throughout the drawings.
In carrying out this invention the two road wheels A B are preferably so placed
that only a short space divides their two peripheries as shown. The steering
wheel A is carried in the usual manner in a fork C provided with a stalk, which
latter is mounted in a steering socket or ball head D of the usual construction.
The lower end of the ball head D is connected by a member E to the lower end
of a member F, the lower part of which latter is carried parallel to the periphery
of the rear driving wheel B. The upper end of the member F is preferably vertical
as shown, and is connected at the top to the top of the ball head D), by a preferably
horizontal member G.
In a ladies bicycle a stay H (shown in dotted lines) extending from the top of the
ball head to near the bottom of the member F, may be substituted for the
member G.
The upper vertical portion of the member F forms a socket of the usual
construction to receive the seat pin or pillar.
The back wheel axle J is carried in the rear ends of two chain stays K, extending
from the lower end of the member F, the rear ends of these chain stays K are
connected by back stays L to the upper end of the member F.
The driving cranks M are each mounted loosely on an axle M¹ secured to the
chain stay K on the corresponding side of the bicycle. These axles are each
formed with or secured to an excentric collar or enlargement M2 which is held in
and is adjustable in a clip K¹ secured to or forming part of the corresponding
stay K. The position of each axle M may be adjusted by a partial rotation of
the collar or enlargement M³ in the clip K' to take up or adjust the tension of the
chains.
Secured to each crank M is a chain wheel N, each of which is connected by an
independent chain O to one of two chain wheels P which are placed on each side
of the hub Q of the driving wheel B.
The cranks M are preferably mounted on ball bearings on their axles M¹ as
shown.
The chain stays K may also if desirable be strengthened at the point where the
axles M³ are attached thereto, by stays R carried from this point to the member F
as shown.
If preferred each crank M may be connected to the hub Q of the road driving

page_text: wheel B; by a toothed gearing as shown in Fig. 3. This gearing comprises a wheel S
secured to each crank, an intermediate wheel S₁ mounted loosely on an axle S
secured to the chain stay K, and a toothed wheel P¹ on each side of the hub Q.
The chain stays K are in this case arranged clear of the gearing as shown.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is: -
1. In a rear driving safety bicycle the combination with a chain stay K of the
frame of a crank M mounted on an axle M¹ connected to the said stay in an inter-
mediate position between its two ends chain wheels N and P secured to the
crank M and hub Q respectively and chain O substantially as described.
2. In a rear driving safety bicycle the combination with a stay K of the framing
of a crank M mounted on an axle M connected to the said stay in an intermediate
position between its two ends toothed gear wheels S and P' secured to the crank M
and hub Q respectively and an intermediate wheel S' substantially as described.
3. In a rear driving safety bicycle the combination with a chain stay K of a
crank M an axle M₁ provided with an excentric collar or enlargement M³ and a
clip K¹ to receive the collar or enlargement M² forming part of the chain stay K
substantially as described.
4. A rear driving safety bicycle framing substantially as described and illus-
trated in the accompanying drawings.
5. The combination and arrangement of parts constituting the complete rear
driving safety bicycle substantially as described and illustrated in the accompanying
drawings.
Dated this 1st day of June 1898.
GEORGE HOSKINS.
CHARLES EDWIN BRASHER.
Boult & Wade,
Agents for the Applicants.