Improvements in Cycle Pedals.
Year: 1896

page_text: Date of Application, 27th Aug., 1896
Complete Specification Left, 27th May, 1897-Accepted, 10th July, 1897
We, JOHN PAGE CROFT, Agent, and FREDERICK EDWARD SLATER, Agent, both of
23 Quadrant Chambers, New Street, in the City of Birmingham, do hereby declare
the nature of this invention to be as follows:-
This invention consists of improvements in cycle pedals our object being to con-
struct a convenient and effective pedal having a pneumatic cushion mounted upon
or formed with it in such a manner as to absorb the vibration of the machine and
thus prevent its transmission to the foot of the rider.
In carrying our invention into effect in one convenient manner, we employ the
ordinary central tube with suitable ball bearings for mounting the pedal upon the
crank or pedal pin secured to the crank. We preferably employ a pedal frame
of a rat trap or other pattern constructed from steel or other plates of any required
ornamental configuration, and upon or within this framing we secure one or more
pneumatic cushions or receptacles moulded or formed from india-rubber or other
suitable material to the necessary shape to permit of their being conveniently
secured upon or within the pedal frame. We attach a suitable metallic valve
to the pneumatic cushion of a similar construction to that employed for the
pneumatic tyres for cycles, for the attachment of the ordinary pump or inflator
carried upon the cycle The cushion or air receptacles can thus be readily inflated
to any required degree of pressure.
We sometimes dispense with the metallic plate framing hereinbefore described
and fix the central tube directly within the pneumatic cushion receptacle and we
make other modifications in the construction of our pneumatic pedals to meet
varying services or requirements.
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants.
PLETE SPECIFICATION.
Improvements in Cycle Pedals.
We, JOHN PAGE CROFT, Agent, and FREDERICK EDWARD SLATER, Agent, both of
23 Quadrant Chambers, New Street, in the City of Birmingham, 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 consists of improvements in cycle pedals, our object being to cou-
struct a convenient and effective pedal having a pneumatic cushion mounted upon
[Price 81

page_text: or formed with it in such a manner as to absorb the vibration of the machine and
thus prevent its transmission to the foot of the rider.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to.-
Figure 1 is a side elevation and Figure 2 a sectional end elevation representing
one form of our improved pedal.
Figures 3 to 6 inclusive are sectional end elevatious representing four modified
forms of pedals constructed in accordance with our invention
Figure 7 is a section of one form of the pedal side plates.
The same reference letters in the different viewe indicate similar parts.
Referring to Figures 1 and 2 we employ the ordinary central tube with suitable
ball bearings for mounting the pedal upon the crank or pedal pin secured to tho
crank. Within the rat-trap or like frame as A of the pedal we insert the india-
rubber or other pneumatic cushion or receptacle B, the cushion being formed or
moulded to fit between the side plates and with an aperture to permit of its being
passed over the central tube as illustrated. The bed or base support for the
pnoumatic cushion we provide by transverse wires or bars as C between the sido
plates. We employ a suitable valve 1 of any ordinary type such as employed
for pneumatic tyres, in order that the cushion or air receptacle B can be readily
inflated to any required degree of pressure.
In the modified forms of our pedal illustrated by Figures 3 to 6 inclusive we
dispense with the base support herein before described by so forming the pedal
side plate and the adjacent sides of the air cushion or receptacle, that a projection
from the one part will fit within a corresponding recess or depression in the other
part. We thus effectually secure the pneumatic cushion or receptacle within the
pedal frame without any independant fastenings or attachment devices.
The pedal illustrated at Figures 1 and 2 constitutes a combined pneumatic and
rat-trup pedal, having a pneumatic tread on the one side and a metallic tread on
the opposite side, whilst in the form shown from Figures 3 to 6 inclusive, a
pneumatic cushion or tread is provided on both sides of the pedal.
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. The combination of a pneumatic cushion with a rat-trap cycle pedal,
substantially as described and as illustrated.
2. A cycle pedal with a double pneumatic tread constructed and arranged
substantially as described and as illustrated.
Dated
100%
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants.