Improvements in Pedal Tubes, their Spindles, Bearings, and Mountings.
Year: 1895

page_text: Date of Application, 15th Nov., 1895-Accepted, 28th Dec., 1895
T
Improvements in Pedal Tubes, their Spindles, Bearings, and
Mountings.
'
We, GEORGE GILBERT and EDWARD MUSHING both Directors of the Centaur
Cycle Company Limited, of West Orchard Works, Coventry in the County of
Warwick, Cycle, Manufacturers, do hereby declare the nature of our said invention
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
Our invention has for its object 'improvements in pedal tubes, their spindles,.
bearings and mountings which are so designed and constructed that we obtain the
maximum width of bearing for the balls and a perfectly solid spindle with the cones.
solid with same.
At the same time we give facilities for the finest adjustment of
the bearings from both ends, and we further practically hermetically seal the
bearings against dust, while at the same time we provide an oil bath for the balle
as the spindle tube is oil tight to a certain height. In effecting these improvements.
we also arm the outside end of the spindle against concussion by forming the outer
cup into a cap as presently to be explained.
In order that our invention may be clearly understood and more easily carried.
into practical effact we have appended hereunto a sheet of drawings showing
a pedal on the rat trap principal though the invention is equally applicable to
rubber or other treads as may be preferred and which will be at once understood.
as our invention does not apply in the least to the kind of tread but to the spindle,
the tube and their mounts :-
Figure 1 is a sectional plan of pedal with the broken off crauk K added for the.
purpose of distinotness.
Figure 2 is an elevation of the crank end of the pedal but with the crank removed.
therefrom by means of its screw thread .
Figure 3 is an elevation of the outer end of the pedal.
Now on referring to the drawings it will be seen that the spindle S has its
collars and in one piece, solid with it and there is therefore no adjustment of
the cones themselves possible on the spindle. The pedal tube T has its inside-
ends t¹ and 2 tapped to receive the cup C which has an external thread and is.
screwed home by the holes c and c or it may be formed for a spanner and this
cup is locked by the external nut c which is clearly shown shaped for a spanner
at Figure 3. The crauk K then fits on the inside end of 'S by a left or right hand
thread and so this end is sealed against dust and against the escape of oil. Now
the outer end has a cup cap C' which likewise screws into the end of the pedal
tube T and is adjusted by means of its nut c' solid with the cup cap.and this is also
locked by an outside lock nut c: This cup cap forms & perfect protection against the
entry of dust and the escape of oil and also is a concussion bridge over the bearing..
We supply oil by means of the small screw c which is easily taken out and
replaced. By these means the bearings are the maximum distance apart and run.
in a bath of oil and the most perfect adjustment is secured with indemnity against
the entry of dust or the escape of oil, and these desideratums are obtained with
perfect compactness and strength and beautiful smoothness in action.
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 :-
:-
1st. The improvements in pedal tubes, their spindles, bearings and mountings in

page_text: combination with each other substantially asiand for the purpose herein set forth
and as shown by Figures 1, 2, and 3 on the accompanying drawings.
2nd. The pedal spindle S with its solid cones and its external races substantially
as set forth and shown by Figure 1.
3rd. The particular mode of adjusting the bearings by means of the outside
nuts c² & c³ in combination with the other parts which confines the adjustment to
the pedal portion and not to the spindle.
4th. The outside adjustable cup cap.Cas and for the purpose "herein *set forth
and shown.
Dated this 13th day of November 1895:
“GEORGE BARKER,
77 Colmore Row, Birmingham, 'Agent for Applicants.