Improvements in Cycle Pedals.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cycle Pedals.
ALBERT EDWARD CHARTER 39 Wood Street London E.C. Agent do hereby
declare the nature of this invention to be as follows :-
This invention has for object certain detail improvements in or connected with
cycle pedals by means of which by a movement of the foot the sole of the boot is
at once clamped and held fast so that it is impossible for the foot to slip.
The clamps consist of two parts, one fixed on the inside pedal plate but adjustable
as to highth by means of a slot and screw to fit the various thicknesses of the soles
of boots.
The outside clamp has two movements Firstly, by means of a screw passing
through an arm which holds the clamp and which screw is fixed on the pedal
plates giving an expanding and contracting movement to said clamp for the purpose
of adjusting the said clamps to the varying width of boots. Secondly, the outside
clamp has a free movement on the said arm to which it is attached, the simple
outward movement of the foot releasing the hold of the clamps and an inward
movement of the foot causing the clamps to grip the boot sole firmly.
The apperatus forms an adjustable pedal toe clip and back pull combined and
suitable for either rat trap or rubber pedals.
The clamps can be made in one piece with the pedal plate.
ALBERT EDWARD CHARTER 39 Wood Street London E.C. Agent do hereby
declare the nature of this invention and in what mauner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:—
This invention has for object certain improvements connected with cycle pedals
by means of which the sole of the boot is clamped and held fast rendering it
impossible for the foot to slip while the rider is on the machine.
The invention consists of two clamps forming part of or attached by means of
rivet or out to the cycle pedal.
screw,
The clamps are adjusted as to heighth so as to enable various thicknesses of boot
sole to be securely clamped to the pedal when required. One clamp besides having
a vertical adjustment is pivoted in such a manner as to revolve horizontally on its
axis for the purpose of securing the boot sole when in position on the pedal.
The clamps consist of two parts one fixed on the inside pedal plate but adjustable
as to heighth by means of a slot & screw to fit the various thicknesses of the soles of
boots. The outside clamp has two movements Firstly by means of a screw passing
through an arm which holds the clamp and which screw is fixed on the pedal plates
giving an expanding & contracting movement to said clamp for the purpose of
adjusting the said clamps to the various widths of boots. Secondly the outside

page_text: movement of the foot in the sense of using the toes as a pivot on which to turn,
releasing the hold of the clamps and an inward movement of the foot causing the
clamps to grip the boot sole firmly.
The apparatus forms an adjustable pedal toe clip and back pull combined and
suitable for either rattrap or rubber pedals-one or both clamps can be made in one
piece with the pedal plate this forming a non-adjustable pedal, toe clip & back pull
combined.
The working of the apparatus is as follows-Having adjusted the arm carrying
the outside clamp to the exact width of the boot sole and the clamps to exact
thickness of welt, the cyclist places his foot on the pedal toes pointing inwards,
pressing the welt of the boot tightly against the outer clamp, then by an inward
movement of the heel, the inside clamp is brought in contact with the other side
of the welt, this movement bringing the foot into a proper position for pedalling.
To release the foot all that is necessary is to turn the heel outwards, when the
outer clamp moves round with the motion of the boot which at once becomes free.
In the other form of my invention I make the pedal of any well known forms or
shapes with the clamps stamped up from the solid metal, one clamp on each side of
the pedal placed diagonally as regards each other. When I use a solid unadjustable
clamp stamped up from the pedal plate I employ any of the ordinary devices so
that the boot sole shall be always the same distance from the top of the pedal plate.
This may take the form of two metal plates screwed to the boot as in Fig. VI in
which the solid clamp E engages while the pedal is in action.
I append hereto designs showing the methods I employ to carry out my invention
similar letters denoting similar parts in the various designs.
A movable clamp having adjustment in a horizontal and vertical sense.
Ba clamp attached to end or side of pedal having adjustment in vertical sense.
C threaded spindle for horizontal adjustment of A as in Fig. III.
D horizontal adjustment as in Fig. IV for closing on welt of boot.
E stamped up solid clamp for holding plates F in position.
F plates attached to or screwed on the sole of boots in which clamp E engages
while rider is pedalling.
DESCRIPTION OF DRAWINGS.
Fig. I Plan view of boot resting on pedal in position for work, dotted lines
indicating the action of clamp A during removal of boot.
Fig. 1 Side view of pedal shewing stationary clamp B attached at end of pedal.
Fig. III Side view of adjustable clamp A shewing vertical and horizontal screw
adjustment.
-
-
Fig. IV Side view of pedal shewing clamp A with ordinary vertical adjustment
but horizontal adjustment attached to slot of pedal plate.
▼ Alternate arrangement of fixed clamp attached to end plates of pedal.
VI Metal plates fixed on boot sole which clamps E are held by an oblique
movement of the foot.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is performed I declare that what I
claim is :-
―:
I. An adjustable pedal toeclip and backpull combined herein described and set
forth.
II. Securing the sole of boots automatically to the pedal by clamps substantially
as described and set forth.
III. The adjustment of the clamps to fit any size or thickness of the boot welt.
substantially as described and set forth.
IV. A pedal having the means of fixing the welt of the boot by adjustable or
fixed clamps in such a manner that by a movement of the foot in an oblique direction

page_text: the boot is released and is free from the grasp of the pedal, substantially as described
and set forth.
V. Clamps upon the pedal for the purpose of increasing the power of a rider
by means of allowing part of the force employed in rasing the foot to be utilized
5 by drawing or pulling the pedal up while riding substantially as described and set
forth.
Dated this 25th dor of October 1901