Improvements in or relating to the Attachment of Pedals to the Cranks of Velocipedes.
Year: 1898

page_text: Date of Application, 6th Oct., 1898
Complete Specification Left, 12th Apr., 1899-Accepted, 13th May, 1899
DICCITICATION.
Improvements in or relating to the Attachment of Pedals to the
Cranks of Velocipedes.
We, JOHN HOLMES, of 5, Croft Terrace, Rudge Road, Coventry, Warwickshire,
Engineer, ALBERT EDWARD WORGAN, of Hampton-in-Arden, Warwickshire, Cycle
Examiner, and SAMUEL BULL, of A 1, St. Nicholas Street, Coventry, aforesaid, Fruit
and Potato Salesman, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to the attachment of pedals to the cranks of velocipedes,
and has for its object to provide secure means of attachment without increasing
the width of tread and preferably without adding to the weight.
In carrying out our invention, we provide the attachment end of the pedal pin
with a short length of comparatively coarse screw thread. The length of this
screw-threaded portion is about equal to two-thirds of the thickness of the end
of the crank and terminates in a shoulder. This end of the pedal pin is bored
axially and tapped to receive a screw pin. The head of this pin is of cylindrical
form and is provided with a comparatively fine screw thread. The depth of the
screw head is equal to about one-third of the thickness of the end of the crank.
A hole is bored through the end of the crank and the outer end thereof is tapped
to receive the end of the pedal pin and the inner or back end thereof is tapped
to receive the head of the pin. The different screw threads may be either right hand
or left hand and alike or different. But the two screw threads on the pin and the
tapped holes they engage with are alike in each pin except in size. The pedal pin
is screwed on to the front of the crank end and the screw pin is screwed into the
back thereof its head engaging in the crank end and its shank in the pedal pin,
thus locking the pedal pin in position. The pedal pin may be bored deeper than
required by the screw pin to compensate for the weight of such screw pin.
Dated this 5th darz of Octoba 1908
G. DOUGLAS LEECHMAN,
18, Hertford Street, Coventry, 75, Chancery Lane, London, W.C., and
9, Exchange Chambers, New Street, Birmingham,
Patent Agent for the Applicants.
Improvements in or relating to the Attachment of Pedals to the
Cranks of Velocipedes.
We, JOHN HOLMES, of 5, Croft Terrace, Rudge Road, Coventry, Warwickshire,
Engineer, ALBERT EDWARD WORGAN, of Hampton-in-Arden, Warwickshire, Cycle
Price 8d1

page_text: Examiner, and SAMUEL BULL, of A 1, Saint Nicholas Street, Coventry, Warwick-
shire, aforesaid, Greengrocer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
t
Our invention relates to the attachment of pedals to the cranks of velocipedes,
and has for its object to provide secure means of attachment without increasing
the width of tread and preferably without adding to the weight. In carrying
out our invention we provide the attachment end of the pedal pin with a short
length of comparatively course screw thread.
The length of this screw threaded portion is about equal to two-thirds of the
thickness of the end of the crank, and terminates in a shoulder. This end of the
pedal pin is bored axially and tapped to receive a screw pin. The head of this
pin is preferably of cylindrical form, but could be of other form if required.
The depth of the screw head is equal to about one-third of the thickness of the
end of the crank. A hole is bored through the end of the crank and the outer
end thereof is tapped to receive the end of the pedal pin. And the inner or back
end thereof is bored to receive the head of the screw pin. The different screw
threads on the screw pin, or the pedal pin may be either right hand or left hand
and alike or different. But the screw thread on the screw pin and the tapped
hole in the pedal pin it engages with are preferably alike in each screw pin and
pedal pin. The pedal pin is screwed into the front of the crank end and the screw
pin is screwed from the back thereof engaging in the shank in the pedal pin, thus
locking the pedal pin in position.
The pedal pin may be bored deeper than required for the screw pin to com-
pensate for the weight of such screw pin. It is to be understood that it is pre-
ferable to have the pedal pin screwed right hand thread such part screwing into
end of crank, and the screwed pin left hand thread, of vice versa.
To lock pedal
pin to crank, take pedal pin A, and screw it into crank C, take screw pin B,
and screw into pedal pin A, from the other side of crank C, and the head of screw
pin B, will then be well up into the end of crank C, and thus locked together.
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:-
1st. The improvements in or relating to the attachment of pedals to the cranks
of velocipedes, constructed substantially as herein described and illustrated by
Figures 1 and 2 of the accompanying drawing.
2nd. The screw pin in combination with the pedal pin and crank, the pedal pin
screwed into crank from the one side, and the screw pin screwed into the end of
pedal pin from the other side of crank, thus locking the pedal pin to the crank
by the means of the screw pin and the pedal pin. The pedal pin having a right
hand thread and the screw pin a left hand thread, or vice versa, or both threads
alike, constructed substantially as herein described and illustrated by Figures 1
and 2 of the accompanying drawing.
Signed thin 11th
c
1000
JOHN HOLMES,
ALBERT EDWARD WORGAN,
SAMUEL BULL.