Improvements in Cycle Pedals.
Year: 1893

page_text: Date of Application, 14th Nov., 1893
Complete Specification Left, 26th July, 1894-Accepted, 1st Sept., 1894
PROVISIONAL SI MULTICATION
Improvements in Cycle Pedals.
We, JOHN PARKER and THOMAS SANDERS, trading as Parker and Sanders, of
Aston Brook Street, in the City of Birmingham, Manufacturers, and SAMUEL
ARMSTRONG, of Rifle Crescent, Aston, near Birmingham aforesaid, Manager of
Works, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of ball bearing
cycle pedals, and consists in the one part, in making the ball-bearings dust-proof;
in the second part, in an inside cone adjustment; in the third part, in rat-trap
frames.
In carrying out our invention, we make the outer pedal plate preferably from
cut-out sheet metal, and with the middle part hemispherically domed or sunken
from the inside, forming a concealed ball-bearing race for the reception of ball
bearing for receiving and taking the thrust of the outer and coned end of the
spindle, that is to say, the end pedal plate, which has ears as usual, is sunken from
the inside, forming an outside hemispherical swell.
The outer end of the spindle has a coned head or enlarged end which takes
within the said sinking, but with the balls between the race of itself and that of
the sinking.
The inner ball bearing pedal plate has its middle outwardly shaped or domed
into a ball bearing recess, chamber or hollow with a hole through the middle of
its end, wherethrough the inner end of the spindle, which is terminally wormed,
passes and fits.
The inner side entrance to this ball bearing chamber is larger in diameter
than the hole in the end wherethrough the spindle passes and works, and within
which ball bearing chamber or recess, an adjustable cone upon the spindle takes.
Now this said adjustable cone screws upon au inner part of the spindle, which
is left-hand wormed, whilst the extreme inner end of the spindle is right-hand
wormed upon which a nut takes for fixing on the crank which takes upon a part
of the spindle lying outside the inner pedal plate.
Located between the race of the cone and the race of the ball bearing of the
pedal are anti-friction balls.
Both of the ball bearings at the ends are simultaneously adjusted by rotating
the cone at the inner end.
It is understood that this cone is located upon, and got at from, the inside of
the pedal frame. When rotated the spindle is drawn slightly longitudinally,
bringing the cone races up to the ball bearings.
The rat-trap sides are also preferably cut-out from sheet metal with the ends
turned at right angles, and the top edges of the said ends turned inwards flange-
wise or box-wise, so as to embrace or come upon the top edges of the end pedal
plates, thereby giving stay and rigidity to the fitted-together parts, when transverse
screws, rivets or the like are passed through the overlapping or brought-together
members.
The coned head at the outer-end of the spindle is preferably made separate and
a stalk part of it made to fit within a hollow end of the spindle.
Dated this 13th day of November 1893.

page_text: Improvements in Cycle Pedals.
We, JOHN PARKER and THOMAS SANDERS, trading as Parker and Sanders, of
Aston Brook Street, in the City of Birmingham, Manufacturers, and SAMUEL
ARMSTRONG, of Rifle Crescent, Aston, near Birmingham aforesaid, Manager of
Works, 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 improvements in the construction of ball bearing
cycle pedals, and consists in the one part, in making the ball-bearings dust-proof;
in the second part, in an inside cone adjustment; in the third part, in rat-trap
frames.
In carrying out our invention, we make the outer pedal plate preferably from
cut-out sheet metal, and with the middle part hemispherically domed or sunken
from the inside, forming a concealed ball-bearing-race for the reception of ball
bearings for receiving and taking the thrust of the outer and coned end of the
spindle, that is to say, the end pedal plate, which has ears as usual, is sunken from
the inside, forming an outside hemispherical hollow swell.
The outer end of the spindle has a coned head or enlarged end which takes
within the said sinking, but with the balls located between the race of the coned
end and that of the sinking.
The inner ball bearing pedal plate has its middle outwardly shaped or domed
into a ball bearing recess, chamber or hollow, with a hole through the middle of
its end, wherethrough the inner end of the spindle, which is terminally wormed,
passes and fits.
The inner side entrance to this ball bearing chamber is larger in diameter than
the hole in the end wherethrough the spindle passes and works, and within which
ball bearing chamber or recess, an adjustable cone upon the spindle takes.
Now this said adjustable cone screws upon an enlarged inner part of the spindle,
which is left-hand wormed, whilst the extreme inner end of the spindle is right-
hand wormed, upon which a nut takes for fixing on the crank, which takes upon a
part of the spindle lying outside the inner pedal plate.
Located between the race of the cone and the race of the ball bearing of the
pedal are anti-friction balls.
Both of the ball bearings at the ends are simultaneously adjusted by rotating the
cone at the inner end.
It is understood that this cone is located upon, and got at from, the inside of the
pedal frame. When rotated the spindle is drawn slightly longitudinally, bringing
the cone races in opposite directions, up to the ball bearings.
The rat-trap sides are also preferably cut-out from sheet metal, with the ends
turned at right angles, and the top edges of the said ends turned inwards flange-
wise or box or clip wise, so as to embrace or come upon the top edges of the end
pedal plates, thereby giving stay and rigidity to the fitted-together parts, when
transverse screws, rivets or the like are passed through the overlapping or brought-
together members.
The coned head at the outer end of the spindle may be made separate and a
stalk part of it may fit within a hollow end of the spindle.
Figure 1 of the accompanying drawing represents, in horizontal section, a rat-
trap pedal constructed, provided and fitted with improvements in accordance with
our invention.
The said pedal has dust-proof ball bearings and an inside cone adjustment,
which simultaneously takes home the ball bearings at both ends, and with a
rat-trap frame, made from sheet metal, and mainly in one piece.

page_text: Figure 2 represents a transverse vertical section upon the dotted lines x-x
Figure 1, looking towards the inner bearing and in the direction of the arrow.
Figure 3 represents an elevation of the inner end of the pedal Figure 1, whilst
Figure 4 shows a like elevation of the outer end of the said pedal.
Figure 5 represents, in horizontal section, the rat-trap frame of the pedal
separately, with the outer ball bearing race of it made out of the middle part of
the metal of the said frame.
Figure 6 represents the closure end pedal plate, with ball bearing race formed
in common with it.
Figure 7 shows the straight blank from which the pedal frame, Figure 5, is
made, and Figure 8 shows a section of Figure 7 on the dotted lines A A.
The same letters of reference indicate corresponding parts in the several
figures of the drawing.
a is a rat-trap pedal frame, cut out from sheet metal, and comprehending opposite
sides a', an end a³, and opposite end flanges a³, and with the said end hemispherically
domed or sunken at b, from the inner side, forming an inside ball bearing race, for
the balls or spheres c, of the coned or raced outer end d³, of the spindle d, to travel
upon. The other and inner of the pedal frame, having rat-trap edges, is fitted
with a supplementary end part e, with a ball-race chamber el, sunken within the
middle of it, and with the mouth or open side coming innermost, and being
presented to the corresponding ball race f', of an inside adjustable cone f,
screwing upon a left-hand wormed enlargement d', of the spindle d, whose extreme
inner end is right-hand screwed at d³.
Coming at the back of the cone f, between which and the ball race el, of the
end frame e, are balls or spheres g, is a lock nut f, whilst the sleeve, of the
said cone passes through the hole e, of the domed middle part of the end
is secured to the flange ends a³, by screw pins or rivets a*
es
which
To make a rigid connection of the end flanges a³, with the end closure plate e,
ears a, on the flanges a³, are turned over the top and bottom edges of the ends e¹,
of the said plate e.
The sides of the pedal are curved or cambered in order to impart strength
thereto.
We wish it to be understood that the principal part of our invention may be.
applied to rubber pedals, equally as well as to rat-trap pedals as herein described.
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 :-
First. In cycle pedals, providing and fitting the same with a single inside cone
adjustment, whereby both ball bearing ends are simultaneously adjusted, substantially
as described and set forth.
Secondly. A dust-proof cycle pedal, substantially as described and set forth.
Thirdly. In the frames of rat-trap cycle pedals, making the same, less one end,
or a part of one end, from a single blank of sheet metal, and with the said end
fitted with a supplementary plate, substantially as described and set forth.
Fourthly. The improvements in the construction, arrangement and combination
of the parts of cycle pedals, substantially as described and set forth.
Baked
1001
JOHN PARKER,
THOMAS SANDERS,
SAMUEL ARMSTRONG,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.