Improvements in Cycle Frames and in Wind Motor Gearing therefor.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cycle Frames and in Wind Motor Gearing therefor.
I, WILLIAM BETTIS, of 48, Arthingworth Street, West Ham, Essex, House
Decorator, I do hereby declare the nature of this invention to be as follows:-
My present invention has reference to improvements on my former Patent
No. 19682, of 1897, in so far as concerns the position, and manner of mounting
or carrying, the spindle that connects the two sets of gearing, by which the
power obtained from the propeller is transferred to the crank axle. In my former
patent, the said spindle is described as being carried at the side of the bicycle,
or the like by means of clips attached to the ballhead and lower part of the
bottom tube thereof, and therefore does not rotate centrally, or in the same plane
as the frame of the bicycle, and to attain this is the object of my present invention,
which consists of mounting or carrying the said spindle directly behind and
parallel to the bottom tube, and to enable this to be done, I remove the lower
end of said bottom tube from its socket, that forms a part of the bottom or crank
bracket, and to the said socket, at the front portion attach another or second
socket, and in the said second socket I braze the lower end of the bottom tube,
and in the first mentioned socket that formerly carried the lower end of the bottom
tube I form a ballrace for the purpose of carrying the lower end of the spindle
that is also provided with a ballrace, on ballbearings. The upper end of the said
spindle passes through a short length of tube being fixed within a hole formed
in, and at such a part of the ballhead, that when the said spindle is mounted, it
is parallel to and directly behind the bottom tube. In passing the short length
of tube before mentioned, through the ballhead, it would, with the bicycle now in
foul or stop the action of the steering tube, and to obviate this, I shorten the
length of the steering tube and braze thereto two rods of such a length and in such
a manner that each one shall pass on either side of the short length of tube, within
the ballhead and project through holes suitably formed in the upper half of the
ballrace, fitted to the upper end of the ballhead, and on each projecting end I form
a screw thread, to receive nuts to enable the steering arrangements to be adjusted,
on these said ends that also project above the adjusting nuts I attach the handle
bar stem by means of two pieces of tube or lugs, brazed thereto, and provided with
slits or holes to pass over the said ends and be fixed thereto by lock nuts or the
like.
use,
11
1000
Improvements in Cycle Frames and in wind Motor Gearing therefor.
WILLIAM BETTIS, 48, Arthingworth Street, West Ham, Essex, House Decorator,
I do hereby declare the nature of this invention and in what manner the same is to
[Price 8d.]

page_text: be performed, to be particularly described and ascertained in and by the following
statement:—
My present invention has referance to improvements on my former Patent
No. 19682, of 1897, in so far as concerns the position, and manner of mounting
or carrying, the spindle that connects the two sets of gearing, by which the
power obtained from the propeller is transferered to the crank axle, in my former
patent the said spindle is discribed as being carried at the side of the bicycle,
or the like by means of clips attached to the ballhead and lower part of the
bottom tube thereof, and therefor does not rotate centrally, or in the same plane
as the frame of the bicycle, and to attain this is the object of my present invention,
which consists of mounting or carrying the said spindle directly behind and
parallel to the bottom tube, and to enable this to be done, I remove the lower
end of the said bottom tube from its socket, that form part of the bottom or crank
bracket, and to the said socket, at the front portion attached another or second
which is called a knee socket K. The said socket is for the bottom tube to be
brazed into, and in the first mentioned socket that formerly carried the lower end
of the bottom tube I form a ballrace b, by brazing a cup in for the purpose of
carrying the lower end of spindle c, which is formed by part being hollow tube,
and the upper part being solid turned to fit in the said tube, which is secured by
pin i, which passes through slot h, in the tube c nuts are for adjusting by pressing
upon either side of pin i. The upper end of spindle c, passes through tube el,
fixed within the ballhead tube el, has a screw thread on the out side for a cup
to screw over for the ball race b, a hole formed in, and at such a part of the ball-
head, that when the said spindle is mounted it is parallel to and directly behind
the bottom tube, in passing the short length of tube before mentioned, through
the ballhead, it would with the bicycle now in use, foul or stop the action of the
steering tube, and to obviate this I shorten the length of the steering tube, and
braze thereto two tubes of such a length, and in such a manner, that each pass on
either side of the short lengths of tubes e, and e 1, within the ballhead and project
through holes suitable formed, in the upper half of the ballrace, fitted in the
upper end of the ballhead, and on each projecting end I form a screw thread, to
receive nuts to enable the steering arrangements to be adjusted. The stems that
are brazed to the handle bar fit within tubes 1, and is secured by adjusting nuts 2,
Fig. 1 is a side elevation of the bottom bracket and ballhead, showing how
spindle e passes through tubes e, fixed through the ballhead, d are adjusting nuts,
a are bevel wheels for transmitting the power to the crank axle. are ball-
bearings for c to rotate freely being parallel to and behind the bottom tube
the propeller as described in my former patent. Fig. 2, is a section of the ball-
head, showing how tubes 1 pass on either side of tubes e. d1 are adjusting nuts
for the ballrace, d2 are adjusting nuts for the handle bar o.
f is
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1st. An improved bottom bracket, to allow central, wind motor gearing for
transmitting the power down to the crank axle, through the propeller being fixed
to the ballhead as shown in Fig. 1.
2nd. An improved ballhead with tubes brazed in, and tubes brazed on the front
forks, as described, with the handle bar adjustments, as shown in Fig. 2.
Dated this Twentieth day of Vovember 1900