Improvements in and in the Production of Cycle Pedals.
Year: 1896

page_text: Date of Application, 1st July, 1896
Complete Specification Left, 29th Mar., 1897-Accepted, 19th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in and in the Production of Cycle Pedals.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to The Cycle
Components Manufacturing Company, Limited, of Bournbrook near the City of
Birmingham, do hereby declare the nature of this invention to be as follows:-
This invention relates to detail improvements in cycle pedals, and consists in
making the tubular middle part, waist or centre integral with an end plate, which
adds considerably to the rigidity of the pedal.
In pedals as ordinarily constructed, no matter how tightly the ordinary sheet
steel end plate be put onto the ball race, there is considerable liability of the
same working loose.
In carrying out my invention, I produce the said combined middle sleeve and
end plate by stamping, and which consists of a barrel with the outer end having
formed integral with it, a pedal end plate, with the middle part, concentric with
the axis of the said barrel formed into a ball race, preferably larger in inside
diameter than the bore of the barrel and with the outside walls formed into an
outstanding flange, forming as it were a central cup wherein the ball bearings are
located and work and over which a dust cap takes.
The other and crank or inner end of the said sleeve is likewise hollow bossed
into a ball bearing cup, having an annular shoulder up to which a sheet metal or
other pedal inner end plate is fitted.
Instead of making the combined component from stamping, it may be made by
a drawing process, or partly by drawing and partly by stamping.
My invention is applicable to both rat-trap and rubber pedals: In the case of
the former, the pedal end plates are rivetted to the side bars, whilst in the latter
case, the same are connected together by rods directed between them and upon
which the rubber bars in blocks are threaded.
Dated this 30th day of June 1896.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to The Cycle
Components Manufacturing Company Limited, of Bournbrook near 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 relates to detail improvements in cycle pedals, and consists in
making the tubular middle part, waist or centre integral with one of the end
plates, which adds considerably to the rigidity of the pedal and also reduces the
cost of manufacture.
In pedals as ordinarily constructed, no matter how tightly the ordinary sheet

page_text: steel end plate be put onto the expanded ball-raced end of the middle sleeve,
there is considerable liability of the same working loose.
Figure 1 of the accompanying drawing represents in topside plan, with a part
of the outer end in section, a rat-trap pattern cycle pedal having the waist or
centre and the outer end plate made integral with one another or in one piece in
accordance with my invention.
Figure 2 is a side elevation of Figure 1.
Figure 3 is an elevation of the inner end of the pedal Figure 1, but with the
spindle removed.
Figure 4 is a transverse longitudinal section of the pedal, with the spindle,
cones and cognate parts removed to show more clearly the integral character of
the waist and outer end plate.
Figure 5 is an elevation of the combined waist and outer end plate, separately.
Figure 6 is a transverse longitudinal section thereof.
Figure 7 is a cross section upon the dotted line x, Figure 6, looking towards
the inner end of the waist.
Figure 8 is a side elevation of the combined waist and end plate, separately and
Figure 9 is a plan thereof.
The same letters of reference indicate corresponding parts in the several figures
of the drawing.
The said combined middle sleeve and end plate, which I propose to produce by
stamping, consists of a barrel or waist a, with the outer end a', having formed
integral with it a pedal end plate a², with the middle part a³, which is concentric
with the axis of the said barrel formed into a ball race cup a', preferably larger in
inside diameter than the bore of the barrel and with the outside walls formed
into an outstanding flange a', and having a half ball race a, between which and
an opposed ball race 3, of the cone ³, screwed on the outer end of the spindle b',
the ball bearings b, are located and work and over which annular flange a; a dust
cap b¹, takes.
The other and crank or inner end a' of the said sleeve is likewise hollow bossed
into a ball bearing cup as, having an annular shoulder a, up to which a loose
sheet metal or other pedal inner end plate c, is fitted.
My invention is applicable to both rat-trap and rubber pedals. In the case of
the former, the pedal end plates are rivetted to the side bars d, as shown in the
drawing, whilst in the latter case, the said end plates are connected together by
rods directed between them and upon which the rubber tread bars or blocks are
threaded.
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
First. In a cycle pedal, making the centre, waist or middle part thereof,
integral or in one piece with one of the end plates, substantially as described and
set forth.
Secondly. In cycle pedals, making the
integral or in one piece with one of the
substantially as described and set forth.
centre, waist or middle part thereof,
end plates, and by a stamping process,
Thirdly. The improvements in, and in the construction of, cycle pedals,
substantially as and for the purpose described and set forth.
Dated this 27th day of March 1897.
CHARLES THOMAS BROCK SANGSTER,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.