An Improved Method of Securing Pedals to the Driving Cranks of Velocipedes.
Year: 1894

page_text: Date of Application, 9th July, 1894
Complete Specification Left, 9th Apr., 1895-Accepted, 18th May, 1895
PROVISIONAL SPECIFICATION.
An Improved Method of Securing Pedals to the Driving Cranks of
Velocipedes.
We, WILLIAM BOWN, 308 Summer Lane, Birmingham in the County of
Warwick, Manufacturer, and JOSEPH HENRY HUGHES, Park Lane, Aston juxta
Birmingham aforesaid, Machinist do hereby declare the nature of this invention to
be as follows :-
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This invention has reference to means for securing pedals to the driving cranks
of velocipedes the object of which is to enable the "tread" or distance between
the two driving cranks to be as narrow as possible which cannot be done under the
old method of securing pedals to the cranks on account of the nut which secures
the said pedal to the crank having to protrude beyond the inner plane of the said
crank.
According to our invention we form a screwed hole, by preference taper, in the
end of the crank to which the pedal is secured, the said hole being tapered towards
the outer plane of the said crank. The end of the pedal spindle which is screwed
into the said taper hole in the crank has a hole drilled in the centre, which said
hole is tapped at its bottom end and formed slightly conical at its top end, and the
said end of the pedal spindle is also split in two or more places. A screwed pin
which is cone shaped at its top end is provided for screwing into the conical hole
formed in the said end of the pedal spindle. It will be easily understood that
when the split end of the pedal spindle is screwed into the taper hole in the driving
crank and the cone shaped pin screwed into the conical hole formed in the split
end of the said pedal spindle that the said cone shaped pin will bind the said split
screwed end of the pedal spindle firmly in the taper hole formed in the end of the
driving crank by which means we are enabled to considerably narrow the "tread
or distance between the driving cranks of velocipedes and at the same time firmly
and securely attach the pedals thereto.
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WILLIAM BOWN.
JOSEPH HENRY HUGHES.
COMPLETE SPECIFICATION.
An Improved Method of Securing Pedals to the Driving Cranks of
Velocipedes.
We, WILLIAM BOWN, 308 Summer Lane, Birmingham in the County of
Warwick, Manufacturer and JOSEPH HENRY HUGHES, Park Laue, Aston, juxta
Birmingham, aforesaid, Machinist, do hereby declare the nature of this invention
and in what manner the same is to he performed, to be particularly described and
ascertained in and by the following statement :-
This invention has reference to means for securing pedals to the driving cranks
of velocipedes the object of which is to enable the "tread" or distance between the
two driving cranks to be as narrow as possible which cannot be done under the old

page_text: method of securing pedals to the cranks on account of the nut which secures the
said pedal to the crank having to protrude beyond the inner surface of the said
crank.
In order that our invention may be clearly understood we have annexed the
accompanying sheet of drawings which illustrates saine.
Fig. 1 is part sectional view of part of a driving crank and part of a pedal spindle
of a velocipede.
Fig. 2 is a perspective view shewing the pedal fixed to the driving crank.
A is part of the driving crank of a velocipede in the end of which is formed a
screwed taper.hole B. The end a of the pedal spindle C which is screwed into the
taper hole B in the crank A has, a hole 6 drilled in the centre which is tapped
towards the bottom end and formed conical at the top end, the said end a is also
split in one or more places, (by preference four as shewn at Figs. 2 and 4). The
screwed pin D, Fig. 3, which is cone shaped at its top end to correspond with the
conical end of the hole 6 is provided for screwing into the said conical hole b.
It will be easily understood that when the split screwed end a of the pedal
spindle C is screwed into the taper hole B in the driving crank A and the cone
shaped pin D screwed into the conical hole 6 formed in the split screwed end a of
the said pedal spindle C, that the said cone shaped pin D will expand the said split
screwed end a thereby firmly securing the said pedal spindle C in the taper hole B.
When pedals are secured to driving cranks of velocipedes as above described we
are enabled to considerably narrow the "trend" or distance between the said
driving cranks and at the same time firmly and securely attach the said pedals
thereto.
Instead of employing the screwed cone shaped pin D for expanding the end a of
the pedal spindle Ċ we may if desired employ any other means which will answer
the same purpose.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
Firstly. Securing pedals to the driving cranks of velocipedes by means of a cone
shaped pin or equivalent which expands the screwed end of the said pedal spindle
in the tapped taper hole of the said driving crank substantially as herein shewn and
described.
Secondly. Securing pedals to the driving cranks of velocipedes by means of the
expansion of the split screwed end a substantially as described and shewn.
Thirdly. Forming the end of a velocipede pedal spindle with a tapped split
conical hole in combination with a screwed cone shaped pin or equivalent
substantially in the manner and for the purpose as herein shewn and described.
Fourthly. The means substantially as herein shewn and described for securing
pedals to the driving cranks of velocipedes.
Dated this 8th day of April 1905
WILLIAM BOWN.
JOSEPH HENRY HUGHES.