IMPROVEMENTS IN BICYCLES AND TRICYCLES
Year: 1884

page_text: BENJAMIN RILEY MILLS 16 Warwick Street Blackfriars Road London do hereby
declare the nature of my invention for IMPROVEMENTS IN BICYCLES AND TRICYCLES
to be as follows :-
The application of the Pentograph to Bicycles and Tricycles.
First as a means of communicating the rotory motion of crank or pedel shaft to
the axles of the driveing wheels as shown in Fig 1 the rods or leavers A B C
and D represent the pentograph motion as applied to the machine the rods A B C
and D being connected together and to the machine by the joints 1 2 3 4 5 and 6
the length, and position of the joints are such that joint 6 working on pin at at G
and joint 3 working on crank pin of crank G crank G is carried round in a circle
by pressure of the foot on pedel H joint 5 will be carried round at the same time, so
that joint 5 being carried on crank pin of crank E will carry crank E round with it
so that crank E being fixed to the axles of driving wheels will carry the driveing
wheels round and thus propel the machine.
Fig 2 shows the motion with the short crank driving the wheels the long crank
at the pedels and working on a pin at 5 this plan will be used for front steerers
the crank of the driving wheels will be so constructed as to admit the use of
differentel geer.
Fig 3 shews saction of the crank A is the axle of the driving wheel turning in
boss of crank at B cogg C is fast on axle A and geers with cogg D on axle E on
axle E is miter cogg geered to miter cogg H MITER cogg H geers to cogg K
which is fast on axle L thus transmitting the motion of the crank equel to the
driving wheels.
The Second part of my invention is the application of the pentograph to the
crank of Bicycles Fig 4 A front fork on wich is lug B working on pin fixed to
lug B is joint 5, and 12 shews the other joints of the motion 6 shows the
pedels attached to ende of motion an joint 3 works pin of crank D when crank D
turns round a complete circle number 6 will be carried round in a circle at the
same time the motion is applied on each side of machine.

page_text: The Third part of my invention is the application of the invention or motion to
the driving of tricycles without rotating pedel shaft as shown in fig 5 two of the
motions will be used one on each crank of driving axle.
What I claim is the application of the motion as described in the first part of my
invention.
Secondley I claim the application of the motion to Bicycles as described in the
second part of my invention.
Third I claim the use of the Motion for driving tricycles without rotating crank
as discribed in the Third part of my Invention.
Dated this 17th day of January 1884.

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"COMPLETE SPECIFICATION.
BRILLS 16 Warwick street Blackfriers Road London Bicycle and Tricycles
Maker I do hereby declare the nature of my invention for IMPROVEMENTS IN
BICYCLES AND TRICYCLES and in what manner the same is to be performed, to
be particularly, described and ascertained in and by the following statement :-
For the application of the Pentograph as a means of communicating the rotery
motion of the crank shaft to the axles of the driveing wheels as shown in Fig 1
the rods or levers a b c and d represent the pentograph as applied to the machine-
the rods a b c and d being connected together and to the machine by the joints 12
3 4 5 and 6 the length and position of the rods and joints that the joint number 6
working on pin at GH and joint number 3 working on crank pin of crank G
when crank G is carried round by pressure of the foot on pedol H joint 5 will be
carried round at the samo time so joint 5 being on crank pin of crank E will carry
crank E round with it so crank E being fixed to axles of driveing wheels will
carry driveing wheel round with it and thus propel the machine forwards or or
backwards.
Fig 2 shows the motion with the short crank driveing the wheels and the long
crank the pedels shaft the motion being transmitted from one crank to the driveing
wheel crank by means of the pentograph motion as shown at A B C and D and 1 2
8 4 and 5.
"
Fig 3 shows the saction of the crank with differentel motion attached A is the
axle of driveing wheel the ende of axle A farthest from the driveing wheel turns
in boss of crank at B outside boss of crank is cogg C the cogg C is fast on axlo A
and gears with the cogg D cogg D is fast on E axlo E passes through the crank
and on the other ende is fixed the miter cogg G the miter cogg G the miter gears
withe the double miter cogg H cogg H gears with cogg K cogg K is fast on nxle L
on axle L is fixed the right hand driveing wheel so by the Pentograph motion and
the crank and coggs as shown in Fig 2 and 3 the rotery motion of the pedels are
transmited to the driveing wheels in such a manner as to drive them with equel
force when going in a streight line and yet one wheel can overrun the other as in
going round a cornor Gear Fig 3 is in the centre or at the Side.
The Second part of my invention is the application of the pentograph to Bicycles
so as to place the riders feet near the ground and more near the Back wheel then
they are upon the ordinary bicycle and yet to obtain a circuler motion for the feet
of the rider.
Fig 4 shows the motion as applied to tho Bicycle. A represents the front fork
of the machine B lug to which is fixed joint 5, and 12 3 and 4 shews the joints of
the motion 6 shows the pedels fixed to the ende of motion as joint 3 working on
the crank pin of crank D when crank D turns a compleat circle pedel 6 will be
carried round a compleat circle at the same time so that by placeing the motion on
each side of the machine and appling the pressure of the riders feet the machine
will be propelled forward.
The 3rd part of my invention is the application of the pentograph to the driveing
of tricycles without the rotating pedel shaft yet obtain a pedel with a circuler
motion for the feet as shown in figuro 5 and similer to the method as applied to
Bicycles their will be 2 cranks on the driveing axle and 2 motions one attached to
cach crank,
.

page_text: Having now perticularly discribed and ascertained the nature of said invention
and in what manner the same is to be performed I declare that what I claimd is
1 Application of the pentograph as a means of communicating the rotery motion
of the rotating crank and pedel shaft of tricycles to the driveing wheels as discribed
in the first part of my invention and by fig I. Fig 2 and Fig 3.
.
2 the application of the pentograph to bicycles as discribed in the 2 second part
of my invention and by Fig 4.
3 the application of the pentograph to tricycles as described in the 3rd part of
my invention and by fig 5.
Dated this 15th dox of Octobom 1884