Improvements in and connected with. Driving Gear for Cycles, Motor- Cars, and the like.
Year: 1897

page_text: Improvements in and connected with. Driving Gear for Cycles, Motor-
Cars, and the like.
I, WILLIAM HENRY WAKFER, of No. 16, Hermitage Road, Green Lanes, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention
to be as follows:
My invention relates to driving gear which is principally applicable to cycles,
but which may be also applied to motor cars and the like, and to means for ad-
justing such gear to take up wear and to prevent back lash.
My invention consists in dispensing with the ordinary chain and sprocket
wheels as now used and in substituting therefor gearing consisting of a spur
wheel having teeth on the side or with teeth on the edge which teeth are prefer-
ably made in the form of studs. This wheel is mounted on the crank shaft in
the bottom bracket and gears with a pinion mounted on a spindle which proceed;
therefrom in the direction of the driving wheel of the cycle or the like. At the
end of this spindle nearest the driving wheel I mount another pinion which gears
with the spur wheel on the driving wheel of the kind described. The spindle
is mounted in bearings clamped or bolted to the frame of the cycle so as to be
capable of being adjusted to bring the different pairs of wheels nearer together
or further apart and of altering the angularity of the spindle and its gear wheels
relatively to a line produced between the centres of the crank axle and the
driving wheel axle, whereby the leverage of the motive wheel can be increased:
and the back-lash taken up at the same time.
According to a modification the spur wheels may be provided with ordinary
teeth and the pinions may have the conical or stud like teeth.
According to another modification the driving wheel may be provided with
a worm wheel having either ordinary or stud like teeth and the wheel on the
spindle gearing therewith may have either stud-like or ordinary teeth.
According to yet another modification the crank axle is provided with a spur
or worm wheel having either ordinary or stud-like teeth which wheel gears with
another similar wheel on an axle parallel to the crank axle and on this second
axle there is also mounted a spur wheel having teeth on the side which teeth
are preferably made in the form of studs, but they may also be of the usual shape.
This spur wheel gears with a pinion mounted on a spindle which proceeds there-
from in the direction of or approximately in the direction of the axle of the
driving wheel and the spindle has another pinion thereon gearing with a wheel
on the axle of the driving wheel.
•

page_text: The brackets for holding the axles of the wheels or the spindle are preferably
made adjustable to compensate for wear where possible.
Dated this Nineteenth day of November 1897.
JENSEN &
SON,
77, Chancery Lane, London, W.C.,
Patent Agents.
Improvements in and connected with Driving Gear for Cycles, Motor
Cars, and the like.
I, WILLIAM HENRY WAKFER, of No. 16, Hermitage Road, Green Lanes, in the
County of Middlesex. Engineer, 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:
My invention relates to driving gear which is principally applicable to cycles,
but which may also be applied to motor cars and the like and my invention also
relates to means for adjusting such gear to take up wear and to prevent back
Jash.
Figure 1 of the accompanying drawings is a part sectional plan view of part
of the back wheel and frame of a safety bicycle of the usual type provided with
driving gear constructed according to my invention and
Figure 2 is an elevation thereof.
Figure 3 is a part sectional plan view of a bicycle provided with a modified
construction of driving gear.
Figure 4 is an elevation thereof and
Figure 5 is a part sectional plan view of yet another modification.
Figure 6 is an elevation of another modification.
Figure 7 is a plan view, partly in section and
Figure 8 is a detail view in elevation shewing an adjustable bracket more
clearly.
Referring to Figures 1 and 2 it will be seen that in for instance a safety
bicycle I dispense with the ordinary chain and sprocket wheels as generally used
heretofore and substitute gearing consisting of a spur wheel A having teeth A
on one side which teeth are preferably made stud-like or in more or less conical
form with a rounded apex. This wheel A is mounted on the motive or crank
shaft A2 in the bottom bracket B and gears with a pinion or spur wheel C
mounted on one end of a spindle D. The spindle D is suitably mounted in ball
bearings contained at each end of an outer enclosing tube E which is substituted
for one of the ordinary fork members. At the other end of the spindle D nearest
the hub of the driving wheel I mount another spur wheel or pinion F which
gears with a spur wheel G having teeth G¹ on one side similar to those described,
with reference to the wheel A. The spur wheel G is mounted on or formed in one
with the hub H of the driving wheel of the vehicle. The spindle D is, as aforesaid,
mounted in the tube E. which is provided at each end with brackets I and K.
The bracket I is suitably provided with a slot I in which the pin or axle of the
driving wheel is clamped in the usual way and there are also two slotted lugs I'
and at right angles to the body of the bracket for the attachment of the studs
E and E fixed to or made in one with a collar E3 on the tube E. The back stav L
is suitably bolted or attached at I to the bracket I. The bracket K is similar

page_text: to the bracket I except that it is brazed or otherwise fixed in position to the bottom
bracket B. It is therefore apparent that the driving wheel may be fixed nearer
to or further from the bottom bracket and the angularity of the spindle D (and
with it its wheels C and F) may be varied in what may be roughly called the
horizontal and vertical planes. By this means the wheels A and C and the
wheels F and G may be adjusted to gear more or less tightly and in different
relative positions whereby the leverage of the wheels A and F can be increased
or decreased and the back lash taken up at the same time.
Figures 3 and 4 represent a modification in which the general arrangement is
the same but the wheel A on the crank axle is provided with ordinary teeth at
the edge and the wheel C on the spindle running in the tube E has stud-like
teeth C¹ on one side. The wheel F is also provided with stud-like teeth F¹ on
one side and gears with the wheel G which has ordinary teeth on the edge.
Figure 5 shews yet another modification in which the general arrangement is
the same but the wheel A on the crank axle is provided with stud-like teeth A¹at
the edge and the wheel C on the spindle running in the tube E has ordinary teeth
on one side and gears with the wheel G which has stud-like teeth on the edge.
Referring to Figures 6, 7 and 8 it will be seen that the general arrangement
is also in this case the same but the wheel A on the crank axle is provided with
conical stud-like teeth A¹ at the edge and the wheel C on the spindle running
in the tube E has also stud-like teeth C¹ at the edge. The wheel F is also pro-
vided with stud-like teeth F¹ at the edge and gears with the wheel G which has
stud-like teeth G₁ at the edge. As the angle formed by the bottom tube L¹ and
the back fork members varies in machines of different makes I may if desired
use a bracket K¹ shown best in Figure 8. This bracket is provided with a lug K²
which is brazed to or otherwise fixed in position in the bottom bracket of the
machine. There are two slots K³ and K4 in the bracket in which are clamped
two slotted or forked lugs K5 and K6 (Figures 6 and 7). These lugs K³ and K
are suitably provided with screwed ends and nuts as shewn for permitting of their
heing clamped in position for taking the studs E4 E5 of the collar E on the right
hand end of the tube E.
It is evident that it is possible, by merely removing one of the fork members
of the frame of a safety bicycle, as now constructed, and by adding the brackets
I and K, the spindle D and the gearing, to convert a chain driven cycle into a
chainless cycle, without otherwise interfering with the rest of the machine.
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:
1. Driving gear consisting of a gear-wheel mounted on the motive or crank
shaft of the vehicle. said wheel being provided with stud-like teeth on the side
a spindle supported in bearings near each of its ends, a spur wheel mounted at
one end of said spindle gearing with the gear wheel on the motive shaft, another
spur wheel mounted at the other end of said spindle gearing with a gear wheel
on the driving wheel or axle of the vehicle said gear wheel being provided with
stud-like teeth on the side substantially as set forth.
2. Driving gear consisting of a gear wheel mounted on the motive or crank
shaft of the vehicle. said gear wheel being provided with stud-like teeth on one
side a tube, a spindle, supported in bearings near each of its ends contained
in said tube means for adjustably attaching said tube to brackets at each end, one
bracket being fixed to the bottom bracket of the frame of the cycle or to the
vehicle, the other bracket being attached to the axle of the driving wheel, a spun
wheel mounted at one end of said spindle gearing with the gear wheel on the
motive shaft, another spur wheel mounted at the other end of said spindle gearing
with a gear wheel on the driving wheel or axle of the vehicle said gear wheel
being provided with stud-like teeth on one side substantially as described and
shewn with reference to Figures 1 and 2.

page_text: 3. Driving gear consisting of a spur wheel mounted on the motive or crank shaft
of the vehicle, a spindle supported in bearings near each of its ends, a gear wheel
mounted at one end of said spindle having stud-like teeth on the side gearing
with the aforesaid spur wheel on the motive shaft, another gear wheel mounted
at the other end of said spindle having stud like teeth on the side and gearing
with a spur wheel on the driving wheel or axle of the vehicle, substantially as
set forth.
4. Driving gear consisting of a spur wheel mounted on the motive or crank
shaft of the vehicle, a tube, a spindle supported in bearings near each of its ends
contained in said tube, means for adjustably attaching said tube to brackets at
each end, one bracket being fixed to the bottom bracket of the frame of the cycle
or to the vehicle, the other bracket being attached to the axle of the driving wheel,
a gear wheel mounted at one end of said spindle having stud like teeth on one
side gearing with the aforesaid spur wheel on the motive shaft, another gear
wheel mounted at the other end of said spindle having stud like teeth on one side
and gearing with a spur wheel on the driving wheel or axle of the vehicle, sub-
stantially as described and shewn with reference to Figures 3 and 4.
5. Driving gear consisting of a gear wheel mounted on the motive or crank.
shaft of the vehicle, said wheel being provided with studlike teeth round its peri-
phery, a spindle supported in bearings near each of its ends, a gear wheel having.
teeth on one side mounted at one end of said spindle gearing with the gear wheel
on the motive shaft, another gear wheel having teeth on one side mounted at the
other end of said spindle gearing with a gear wheel provided with studlike teeth
round its periphery and mounted on the driving wheel or axle of the vehicle
substantially as set forth.
6. Driving gear consisting of a gear wheel mounted on the motive or crank
shaft of the vehicle, said wheel being provided with studlike teeth round its
periphery, a tube, a spindle supported in bearings near each of its ends contained
in said tube, means for adjustably attaching said tube to brackets at each end
one bracket being fixed to the bottom bracket of the frame of the cycle or to the
vehicle the other bracket being attached to the axle of the driving wheel, a gear
wheel having teeth on one side mounted at one end of said spindle gearing with
the gear wheel on the motive shaft, another gear wheel having teeth on one side
mounted at the other end of said spindle gearing with a gear wheel provided with
studlike teeth around its periphery and mounted on the driving wheel or axle of
the vehicle substantially as described and shown with reference to Figure 5.
7. Driving gear consisting of a gear wheel mounted on the motive or crank
shaft of the vehicle, said wheel being provided with studlike teeth on the edge,
a spindle supported in bearings near each of its ends, a gear wheel provided with
studlike teeth on the edge mounted on one end of said spindle another gear wheel
having studlike teeth on the edge mounted on the other end of said spindle and
a gear wheel with studlike teeth on the edge on the driving wheel or axle of the
vehicle gearing with the said gear wheel on the spindle adjacent thereto sub-
stantially as set forth.
8. Driving gear consisting of a gear wheel mounted on the motive or crank
shaft of the vehicle said gear wheel being provided with studlike teeth on the
edge, a tube, a spindle supported in bearings near each of its ends contained in
said tube means for adjustably attaching said tube to brackets at each end one
bracket being fixed to the bottom bracket of the frame of the cycle or to the
vehicle the other bracket being attached fo the axle of the driving wheel, a sour
wheel with stud like teeth on the edge mounted at one end of said spindle gearing
with the gear wheel on the motive shaft, another spur wheel with teeth on the
edge mounted at the other end of said spindle gearing with a gear wheel on the
driving wheel or axle of the vehicle, said gear wheel being provided with studlike
teeth on the edge substantially as described and shown with reference to Figures 6
and 7.
9. In combination with driving gear of the kind described the employment of

page_text: two armed brackets with lugs having slots therein for permitting of adjustment
of the gear wheels substantially as set forth.
10. In combination with driving gear of the kind described the employment of
two-armed brackets having slots therein adjustable slotted lugs capable of being
fixed in different positions in said slots and means for attaching the bearings of
the spindle for communicating motion in different positions in the said slotted
lugs substantially as set forth.
T
1711
1
1000