Attachments to Bicycles and other like Machines for the Purpose of Transmitting Power to Sheep Shears and other similar Implements.
Year: 1899

page_text: Date of Application, 6th May, 1899-Accepted, 10th June, 1899
Attachments to Bicycles and other like Machines for the Purpose of
Transmitting Power to Sheep Shears and other similar Implements.
A communication from Jonx HoWARD, of Sydney, in the Colony of New South
Wales, Engineer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 is specially adapted for use by small sheep farmers who do not
require large installations of machine sheep shears or other similar implements.
The apparatus comprises: -(1) a portable stand which shall form part of the
bicycle, and by means of which the driving wheel of the bicycle may be raised
from contact with the ground,-(2) an arm which is connected to any suitable
part of the frame below the saddle, which arm carries a horizontal axle with which
may revolve a friction wheel which shall be in frictional contact with the periphery
of the tyre of the driving wheel;-(3) a sharpening disc coated with a coarse
abradent for sharpening the combs, and which disc shall be on the same axis as
the friction wheel; (4) a universal jointed or flexible shaft, one end of which
shall receive rotary motion from the axis of the friction wheel, while its other end
will be provided with a machine sheep-shear or other implement which it is
desired to work;-(5) a disc sharpener which shall be attached to the end of the
flexible shaft instead of the sheep shear, such disc being coated with a fine abradent
for sharpening the cutter of the shear.
In the accompanying sheet of drawings, Figure 1 is a side elevation of the
rear end of a bicycle fitted with the attachments, by means of which one or
more machine sheep shears may be worked.
Figure 2 is a back end view of the same, only those parts being shewn that
are necessary to illustrate the invention.
Figure 3 is a side view, partly in section of the cutter sharpening tool.
A is the rear or driving wheel of a bicycle, B is the tyre thereof, C is the driving
sprocket on the axis of the wheel A, the pedal sprocket and chain being shewn
at DD¹. A movable stand E, is placed on the same axis e as the driving wheel D,
and is so arranged that it may be revolved on the axis e and caused to assume
the position shewn by dotted lines in Figure 1. The reason for this will be
hereafter explained. Projecting rearwards from the saddle-pillar F is an arm or
fork G, the outer extremity of which is provided with a horizontal axle H, upon
which is mounted a friction pinion 'or wheel J, the periphery of which is in the
form a regular curve to fit the curved surface of the tyre B, with which it
must be in frictional contact. The arm G and friction pinion J, are capable of
being moved, to a limited extent, in a vertical plane, as shewn by dotted lines in
Figure 1. To one end of the axle H is keyed or otherwise secured, a faced disc K
(coated with a coarse abradent) which will be used for sharpening the comb of
the shear, while to the opposite end of the axle H will be secured a universal-
.

page_text: -
jointed shaft L, a flexible shaft or other appropriate means for transmitting the
rotary motion of the axle H to the implement that is to be driven. The universal
joints in the shaft are 'shewn at 1, 1, 1, but my correspondent wishes it to be
distinctly understood that any kind of flexible shaft, such for instance, as a
helically wound and covered wire may be used with similar effect. The machine
sheep shear is shewn at M, attached to the free end of the universally jointed
or flexible shaft L.
q
The sharpening tool, Figure 3, consists of a handle p from which projects
rearward a bayonet joint by means of which it may be connected to the end
of the flexible shaft L when the sheep-shear M has been removed. Continuous
with the bayonet joint is a spindler which passes loosely and longitudinally
through the handle p. On the outer extremity of the spindle is screwed a
faced discs which is coated with a fine abradent suitable for grinding and putting
an edge on the cutter of the shear. Attached to the handle 2 and therefore
not revolving with the disc s, is a saucer shaped shield or guard t, which encloses
the discs so that only its prepared or sharpening face can be seen.
The bicycle may be ridden from shed to shed by one of the shearers, and, when
thus travelling, the stand E will be caused to assume the position shewn by
dotted lines in Figure 1, when the periphery of the friction pinion J will lie
on the underside of the foot of the stand. The pinion J or the arm G upón
which it is mounted, may be tied to the foot of the stand E, and thus they will
travel quite securely. The flexible shaft L will also be laid against the framework
of the bicycle and tied on to the diagonal brace F', while the shear will be
detached and carried in the pocket or in a satchel.
When it is desired to start work, the stand E is brought down to the position
shown in the drawings, and secured by bolts or screws, to the floor of the shed,
to a plank or other suitable base which may be handy. It will thus be seen
that the driving wheel A. of the bicycle will be raised from the ground and free
to rotate without propelling the machine forward, while the friction pinion J
being in close contact with the tyre, the power developed by the rider will be
communicated to the axle H and thence to the sharpening disc K and the flexible
shaft L at the outer end of which is the implement to which power is to be
conveyed.
The sharpening disc K will have a double function. It will act as a fly wheel
and governor to regulate and equalize the driving speed. With a view to the same
end, the tyre B, instead of being inflated with air, may be filled with water,
thereby adding to its weight and increasing its momentum without increasing
the speed at which it is driven. It is not absolutely necessary that the arm
or fork G should be attached to the saddle pillar F, as shown in the drawings,
as other parts of the frame may be found to be equally or more suitable.
The several parts of the apparatus have been described and illustrated as forming
part of a bicycle, and in this form the apparatus is self contained and compact;
but, it is obvious that parts of the apparatus might be retained and installed in
several localities, the bicycle travelling from place to place and fitted to such per-
manently fixed or installed parts.
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondent, and in what manner
the same is to be performed, I declare that what I claim is:-
1. In combination, a bicycle or tricycle, a stand for raising the driving wheel
of such vehicle from the ground, a friction pinion in contact with the tyre of
the driving wheel, a sharpening disc on the same spindle or axis as the friction
pinion, the said sharpening disc, also acting as a fly wheel and thus ensuring
a regular and steady motion to a flexible shaft by means of which the rotary
motion of the spindle is conveyed to the implement it is desired to work, as and
for the purposes specified.
2. In combination, a bicycle or tricycle, a stand for raising the driving wheel

page_text: of such vehicle from the ground, a friction pinion in contact with the tyre of the
driving wheel, a sharpening disc on the same axis as the friction pinion, and a
flexible, or universally jointed, shaft for the purpose of developing power and con-
veying the same to a machine sheep shear or other similar implement as and for
the purposes herein set forth.
3. In combination, a bicycle or tricycle driving wheel, a friction pinion in
contact with the tyre of the wheel whereby rotary motion. is imparted to a flexible
shaft which is connected to the axis of the friction pinion and a sharpening disc
or face tool for sharpening the cutters of machine sheep-shears, such disc being
connected to the free end of the flexible shaft, as and for the several purposes
specified.
4. The general arrangement, construction and combination of parts in the
attachments to bicycles or tricycles for the purpose of transmitting power to
sheep-shears and other similar implements, as herein set forth.
L
1000
BOULT & WADE,
Agents for the Applicant.