Improvements in the Brake Mechanism of Cycles, applicable to other Vehicles and Machinery.
Year: 1899

page_text: Date of Application, 27th Sept., 1899
Complete Specification Left, 27th June, 1900-Accepted, 28th July, 1900
Date of Application, 27th Sept., 1899
Complete Specification Left, 27th June, 1900-Accepted, 28th July, 1900
PROVISIONAL SPECIFICATION.
Improvements in the Brake Mechanism of Cycles, applicable to other
Vehicles and Machinery.
We, ALFRED HENRY WEBSTER, of 300, Rotton Park Road, Birmingham, in the
County of Warwick, Works Manager, and THE DIAMOND CYCLE COMPONENTS AND
ENGINEERING COMPANY LIMITED, King Edward's Road, Birmingham aforesaid,
do hereby declare the nature of our said invention to be as follows:-
Our invention has for its object improvements in the brake mechanism of
cycles applicable to other vehicles and machinery which will be found a very
effective and powerful brake and, when fitted to cycles the brake may be applied
either by back pedalling or by the operation of a lever or its equivalent.
In carrying our invention into practice as applied to a velocipede we fix onto
the hub of the front or back wheel preferably in the opposite end to the chain
wheel side of the back hub a flanged disc or its equivalent and in the interior of
the flange of this disc we mount two segments or their equivalents each pivoted
at one to a flat disc or plate or its equivalents fixed adjustably to the fork end
or other convenient part of the frame of the machine. The other ends of these
segments are pivoted to toggle pointed levers or equivalents working in a slot
formed in the flanged disc. Pivoted to the connecting pin of the toggle levers is
a connecting link to which one end of a rod or its equivalent is fixed, the other
end being pivoted to a cam or eccentric or its equivalent mounted on the boss of
the driving crank so that when the rider "back pedals" the connecting rod is
drawn slightly forward consequently drawing the toggle jointed levers forward
also thus expanding the segments and binding them against the flange of the
disc thereby effectually applying the brake. Or instead of applying the brake by
"back pedalling" the connecting rod or its equivalent may be attached to the
ordinary brake lever of the cycle the brake being applied by the operation of
this lever in the ordinary manner. Instead of using toggle jointed levers to
expand the segments we may use a wedge piece for this purpose or other means
may be employed. The toggle jointed levers or equivalents are held in their
normal positions by a spring or other means. In some cases we may use a spring
band or its equivalent in place of the segments fitting around the interior of the
flange of the disc and fixed to the disc or equivalent attached to the frame of the
machine. The ends of this spring band are attached to the toggle jointed levers
or equivalents.
Datel this 90th day of Santamo 1800

page_text: COMPLETE SPECIFICATION.
Improvements in the Brake Mechanism of Cycles, applicable to other
Vehicles and Machinery.
We, ALFRED HENRY WEBSTER, of 300, Rotton Park Road, Birmingham, in the
County of Warwick, Works Manager, and THE DIAMOND CYCLE COMPONENTS AND
ENGINEERING COMPANY LIMITED, King Edward's Road, Birmingham aforesaid,
do hereby declare the nature of our said 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 has for its object improvements in the brake mechanism of
cycles applicable to other vehicles and machinery which will be found a very
effective and powerful brake and when fitted to cycles the brake may be applied
either by back pedalling or by the operation of a lever or its equivalent.
In carrying our invention into practice as applied to a velocipede we fix onto
the hub of the front or back wheel preferably on the opposite end to the chain
wheel side of the back hub a flanged disc or its equivalent and in the interior of
the flange of this disc we mount two segments or their equivalents each pivoted
at one end to a flat disc or plate or its equivalent fixed adjustably to the fork end
or other convenient part of the frame of the machine. The other ends of these
segments are pivoted to toggle pointed levers or equivalents working in a slot
formed in the flat disc. Pivoted to the connecting pin of the toggle levers is
a connecting link to which one end of a rod or its equivalent is fixed, the other
end being connected to a cam or eccentric or its equivalent mounted on the boss of
the driving crank so that when the rider "back pedals" the connecting rod is
drawn slightly forward consequently drawing the toggle jointed levers forward
also thus expanding the segments and binding them against the flange of the
disc thereby effectually applying the brake. Or instead of applying the brake by
"back pedalling" the connecting rod or its equivalent may be attached to the
ordinary brake lever of the cycle the brake being applied by the operation of
this lever in the ordinary manner. Instead of using toggle jointed levers to
expand the segments we may use a wedge piece for this purpose or other means
may be employed. The toggle jointed levers or equivalents are held in their
normal positions by a spring or other means. In some cases we may use a spring
band or its equivalent in place of the segments fitting around the interior of the
flange of the disc and fixed to the disc or equivalent attached to the frame of the
machine. The ends of this spring band are attached to the toggle jointed levers
or equivalents.
In order that our invention may be more clearly understood and easily carried
into practical effect we have appended hereunto a double sized sheet of drawings
upon which we have illustrated examples of our brake as applied to the hub of
a cycle wheel.
Figure 1 is a side view shewing a portion of one of the back forks and hub of
a cycle with our brake fitted thereto.
Figure 2 is a plan view of Figure 1.
Figure 3 is a part sectional view shewing the internal mechanism of our brake.
Figure 4 is a part sectional edge view of Figure 3.
Figure 5 is a view of the flanged disc.
Figure 6 is a cross sectional view of Figure 5.
Figure 7 is a view of the lever H.
In carrying our invention into practice as applied to the wheel of a velocipede
we fix onto the hub N of the front or back wheel, but preferably on the rear wheel
hub and on the opposite side to the sprocket wheel, the flanged disc D or its
equivalent formed with the boss which screws into the end of the hub. Mounted
on the axle A and fixed in position by the usual locking nut a¹ is the flat disc B
which fits flush against the flange & of the disc D and pivoted at 2 and 3 to the
inner face of this disc B are the two segments S and S₁ or their equivalents. The

page_text: other ends of these segments are pivoted at ss to the toggle jointed levers For
their equivalents pivoted at f and free to move in the slot b formed in the flat
disc B. Pivoted at 2 to the outer face of the disc B is the lever or arm H and
this lever or arm works upon the pivot f which passes through the slot has
clearly shewn at Figure 7. The other end of the lever H is connected by the
connecting rod 2 or any other suitable connection to a cam or eccentric or its
equivalent mounted on the boss of one of the driving cranks of the machine.
The spring or its equivalent one end of which is attached to the lever H and
the other end to the disc B is provided for holding the lever H and consequently
the toggle jointed levers F and segments S and S in their normal positions and
the chip K which fits over the fork L and is bolted or otherwise secured to the
dise B is provided as an additional security for preventing the disc B from turning
when applying the brake. The pegs or stop pieces f² are provided so as to prevent
the toggle levers F from being drawn too far forward, and the stop piece limits
the backward movement of the lever H. To apply the brake the rider "back-
pedals or applies a back pressure to the driving cranks when the rod 2 con-
necting the crank to the lever H is drawn slightly forward consequently moving
the lever H on its pivot 62 which action expands the toggle jointed levers For
moves the pivot f¹ forward in the slot thus also expanding the segments S St
and binding them against the inner surface of the flange of the disc D thereby
effectually applying the brake.
We may when desired operate our brake mechanism by the ordinary brake lever
which is attached to the handle bar of a cycle suitable connecting rods or their
equivalents being connected from this lever to the lever H for this purpose and
instead of using toggle jointed levers for expanding the segments S and S¹ we
may employ a wedge piece or other device for this purpose or we may use a spring
band or its equivalent in place of the segments S and S¹ fitting around the interior
of the flange and secured to the disc B, the ends being attached to the toggle
jointed levers For their equivalents.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed I declare that what
I claim is-
CLAIMS.
First The improvements in the brake mechanism of cycles applicable to other
vehicles and machinery consisting essentially of a disc or its equivalent having a
segment or segments or a band pivoted thereto and capable of being expanded
around the inner circumference of the flange of another disc or its equivalent for
the purpose substantially as herein set forth and as shewn upon the accompanying
drawings.
Second: In brakes for cycles and other vehicles pivoting to a plate such as B
or its equivalent segments such as S and S or a segment or band the lower ends
of which are pivoted to toggle jointed levers such as For their equivalents con-
nected to a lever and operated so as to expand against the inner circumference of
flange or ring in the manner substantially as herein set forth and as shewn.
Third-In brakes for cycles and other vehicles mounting a segment or segments
or band so as to be capable of being expanded in the manner and for the purpose
substantially as herein set forth and as shewn.
Dated this 26th day of June 1900
ALFRED HENRY WEBSTER.
THE DIAMOND CYCLE COMPONENTS & ENGINEERING
COMPANY LIMITED.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.