Improvements in the Pedal-cheeks of Cycles and in the Mode of Manufacturing the same.
Year: 1893

page_text: Date of Application, 5th June, 1893
Complete Specification Left, 22nd June, 1893-Accepted, 5th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Pedal-cheeks of Cycles and in the Mode of
Manufacturing the same.
I, CHARLES HENRY BRAMPTON, of the Firm of F. Brampton & Co. of
14 Oliver Street, Nechells, Birmingham, in the County of Warwick, Manufacturer,
do hereby declare the nature of my said invention to be as follows:-
My invention has for its object improvements in the pedal cheeks of cycles and
in the mode of manufacturing the same by which increased endurance and greater
accuracy is obtained. Such cheeks have hitherto been made either from one piece
of metal and then hardened or when made in two parts the junction of the two was
defective. According to my invention they are made as follows:-
I stamp the flat part or plate from one piece of metal and of any desired external
configuration and this plate part is made from tough steel which is neither brittle
nor soft. The cup is formed from steel of harder quality and is hardened so as to
withstand wear to a maximum degree. I form the cup with a head collar or flange
outside and I mill the largest part of the base of the cup immediately under the
said head collar or flange. After the cup is properly finished and hardened I force
it into a hole in the plate which is say the one fivehundredths of an inch (more or
less) smaller than the base which forces the hard keen edges of the milling into the
plate and the head or collar rests tightly upon the plate thus preventing any
possibility of the cup turning in the plate. By this means I form a perfect junction
quite true in every respect without the use of braizing or other means while the
top inner edge of the cup is much sharper than those made in one piece which is an
advantage as it assists to prevent the entrance of dust. In place of the milling I
may form two flats near the collar two similar flats being provided in the hole in
the plate.
Dated this 2nd day of June 1893.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in the Pedal-cheeks of Cycles and in the Mode of
Manufacturing the same.
I, CHARLES HENRY BRAMPTON, of the Firm of F. Brampton & Co. of
14 Oliver Street, Nechells. Birmingham, in the County of Warwick, Manufacturer,
do hereby declare the nature of my said invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement:-
My invention has for its object improvements in the pedal cheeks of cycles and
in the mode of manufacturing the same by which increased endurance and greater
accuracy is obtained. Such cheeks have hitherto been made either from one piece
of metal and then hardened or when made in two parts the junction of the two was
defective. According to my invention they are made as follows:-
I stamp the flat part or plate from one piece of metal and of any desired external
configuration and this plate part is made from tough steel which is neither brittle
nor soft. The cup is formed from steel of harder quality and is hardened so as to
withstand wear to a maximum degree. I form the cup with a head, collar, or
flange outside and I mill the largest part of the base of the cup immediately under
the said head, collar, or flange. After the cup is properly finished and hardened I
PQJ1

page_text: force it into a hole in the plate which is say, the one fivehundreths of an inch
(more or less) smaller than the base which forces the hard keen edges of the
milling into the plate and the head or collar rests tightly upon the plate thus
preventing any possibility of the cup turning in the plate. By this means I form
a perfect junction quite true in every respect without the use of braizing or other
means while the top inner edge of the cup is much sharper than those made in one
piece which is an advantage as it assists to prevent the entrance of dust. In place
of the milling I may form two flats near the collar two similar flats being provided
in the hole in the plate.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a double sized sheet of drawings upon
which it is fully illustrated in both modifications thereof.
Figure 1, is a front view of one of the cheeks in its complete condition.
Figure 2, is an elevation of the edge thereof.
Figure 3, is a longitudinal sectional elevation on the line 1-2 Figure 1.
Figure 4, is a side elevation of the cup part B separate from the plate A before
being put together.
Figure 5, is a plan of the cup part B.
Figure 6, is a side elevation of the cup part B showing a modification thereof.
Figure 7, is a plan of Figure 6.
Figure 8, shows the plate A ready to receive the part B when made according
to Figures 4 and 5, and
Figure 9 shows the same plate as prepared when B is made as per Figures 6
and 7.
I make the pedal cheeks in two parts instead of one and according to my
invention in the following manner :-
The plate A is made from tough steel or other equivalent material which is
neither brittle nor soft. The hole a¹ in the case of Figure 8 is quite round and in
the case of Figure 9 the hole a¹ has two flat parts a³ and a³ which serve to keep
the part B from turning round when the two are put together as seen at Figures 1,
2, and 3 but one flat would be sufficient or more than two flat parts may be used to
answer the same purpose. The part B Figures 4 and 5 is made from the best tool
steel capable of being hardened when shaped in the necessary form or as shown and
having the shoulder 6 formed by the enlargement and having the milled part b²
under the neck so that when this portion is say one fivehundredths of an inch, more
or less, larger than the hole a¹ Figure 8 the part B is forced into the said hole of
the part A in such a manner that the milling makes a sufficient impression to
prevent it from turning round. The same effect is produced by leaving one or
more flat portions such as 4 and Figures 6 and 7 corresponding with the
portions a and a³ Figure 9. It will thus be seen that the parts can be more
effectively polished and finished when A and B are made separately and the proper
difference in the temper of the metal can be obtained and the edge 63 can be kept
quite sharp.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
-
The improvements in the pedal cheeks of cycles and in the mode of manufacturing
the same when made in two parts A and R of forming the said parts A and B with
the shoulder and roughed part 62 or its equivalent such as and substantially
as herein set forth and as shown upon the drawings.
Dated this 21st day of June 1893.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant