Improved Clutch for Cycles and other similar Vehicles
Year: 1899

page_text: PROVISIONAL DI EUITIVATION,
Improved Clutch for Cycles and other similar Vehicles
FRANCIS BEAUCHAMP Sunny Side The Green South Tottenham in the County of
Middlesex Engineer I do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in clutches for cycles and other similar
vehicles. For this purpose I provide means whereby a clutch can be fixed or run
loose according to the wish of the rider. For this purpose I provide two rings the
inner ring
screwed onto the hub of a cycle and has three slots cut therein The
said slots are not quite perpendicular the slots are provided with loose pawls which
come in contact with the outer ring. The periphery of the outer ring is provided.
On the inside of the outer
with teeth for the chain of the cycle to run thereon.
ring I cut a recess the said recess is bevelled on each side and is provided with circu-
lar saw cuts smooth or otherwise for the ends of the said loose pawls to fit therein.
When forward pressure is applied the loose pawls are forced into the bevelled recess
cut in the inner side of the outer ring this having a tendency of pulling the pawls in
a perpendicular direction which causes a jamb. I preferably have three pawls which
are all engaged at the same time. Between the three pawls I sometimes use balls or
rollers running between the inner and the outer rings for the two rings to run freely
when the said loose pawls are not engaged. When I use a smaller outer ring with
less teeth cut thereon for example seven I cut a bevelled edge groove on the periphery
of the ring screwed onto the hub of a cycle and the diameter being so small I let one
end of the pawl into the root of the tooth fixed on the outer ring which is in contact
with the chain, the tooth may be fixed or loose to answer the same purpose the
other end of the pawl fits into the bevelled edged groove cut on the periphery of the
ring screwed onto the hub which allows the ring to run free one way and the reverse
way the pawls cause a jamb or pinch as before described. When I want a fixed wheel
I shift a small bolt which fits into a slot in the inner ring the other end of the bolt
fits into a corresponding slot in the outer ring thus connecting the driving wheel
and pedals and working as with a fixed gear this arrangement locks the two rings
together and forms the ordinary geared wheel. Or any other suitable mechanical
device for locking the same.

page_text: Improved Clutch for Cycles and other similar Vehicles
FRANCIS BEAUCHAMP Sunny Side The Green South Tottenham in the County of
Middlesex Engineer I 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 improved means and devices whereby a clutch can be
fixed or run free according to the wish of the rider. The clutch provided with a
bolt and a part of the said bolt is cut away for the pawl to lie therein.
One end of
the bolt has a fixed lever the other end has a screw when the free wheel is required
to be fixed the rider pulls the lever over on one side this turns the bolt and forces
the pawl into a fixed position as the bolt acts as an eccentric this device can be
applied to either of the pawls on the figures. And in order that this invention may
be clearly understood I will now proceed to describe the same with the aid of the
accompanying sheet of drawings in which Figure 1 is a plan of a clutch with the
plate or washer removed showing the pawls nearly perpendicular with the balls
pressing against the same and one end of the said pawls in contact with the outer
ring the said outer ring is provided with teeth for the chain to work thereon.
Figure 2 shows a section on line A A of Figure 1. Figure 3 is a sectional plan of a
clutch showing three pawls in contact with the inner ring screwed to the hub with
an incline on the back of the pawl and a corresponding incline cut on the inner side
of the outer ring for pressing and retaining the said pawl in the notch cut on the
inner ring screwed onto the hub, when the said inner ring wants to run free it lifts
the pawl up the incline and the tail of the pawl goes into a recess cut in the inner
side of the outer ring and the said pawl drops. by its own gravity. Figure 4 is a
section on line B B of Figure 3. Figure 5 is a sectional plan showing the three pawls
out of contact each one is provided with a semicircular rib for the purpose of strengthen-
ing the pawl as well as well as holding the said pawl in position as shown in dotted
lines with small springs let into the root of the tooth on the periphery of the outer
ring. Figure 6 is a section on line C C of Figure 5 and is a modification of Figures 3
& 4. Figure 7 is the locking bolt. B1 on Figure 1 is the pawl in contact with the
outer ring. B 2 are the balls pressing against the pawl. B 3 is the outer ring. B4
is the inner ring. In Figure 2 C1 is a section of a ring for pressing the balls up
into a groove cut in the inner side of the outer ring. C2 is a washer or plate to bear
against the said section of a ring and is adjusted by screws marked C3 on Figure 1.
In Figure 3-A1 is the pawl A 2 is the incline for pressing the pawl into the
notch or tooth cut on the inner ring marked A 3-that is screwed onto the hub. In
Figure 4-A 3 is the inner ring showing a semicircular groove D 1 with notches or
sawcuts cut therein for the purpose of the pawls shown on Figure 3 marked A 1 to
fit therein. D2 is a plate or washer for clamping the outer ring D 3 & inner
ring A 3 together. In Figure 5-E is a pawl. E 1 is the semicircular rib shown in
dotted lines. E2 is the spring let into the root of the tooth. E3 is the outer ring E 4
is the inner ring. In Figure 6 E is the pawl. E 2 is the spring. F is the plate or
washer E3 is the outer ring E4 is the inner ring. In Figure 7 K is the lever
fastened to the bolt or pin K 1. that passes through the hole and is shown in Figure 1.
marked K 1. and also in Figure 3. 5. & 7.
Figure 3 shows the locking device with the pin or bolt K 1. turned the reverse.
way bearing against the pawl and not allowing the same to rise, this prevents the
clutch running free.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I claim
is:-
1st A combination of parts forming a clutch with the outer ring lying on balls and
the balls lying on segments of a ring for the purpose of adjustment, which comes in
contact with the pawls, and so that when pressure is applied the balls push the pawls
up in a perpendicular position into notches cut on the inner side of the outer ring,
but when the clutch runs free the balls push the pawls down and the outer and inner
rings runs free on the balls, substantially as described and illustrated in Figures 1
& 2 of the accompanying drawing.
2nd. The combination of parts forming an inclined plane cut on the inner side of
the outer ring and a corresponding incline on the pawls for pressing the pawls down
into a groove or notch cut on the inner ring and not allowing the pawls to rise whilst
pressure is applied, substantially as described and illustrated in Figures 3 & 5 of the
accompanying drawings.
3rd. The combination of a clutch with a locking device. with part of the pin cut
away for clearing a pawl, so that when turned the reverse way the part not cut away
comes in contact with the pawl and presses the pawl into the notch or groove cut on
the inner or the outer ring, substantially as described and illustrated in Figure 7 of
the accompanying drawings.
FRANCIS BEAUCHAMP