Year: 1886

page_text: Date of Application, 23rd Oct., 1886.
Complete Left, 23rd July, 1887.
Complete Accepted, 16th Sept., 1887.
I EDWARD JONES of 13 Blenheim Square, Leeds in the County of York, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a novel construction of friction gear applic-
able to the driving of all kinds of machinery, such gear being admirably adapted to
the driving of dynamos for electric lighting, for use on shipboard, or in other places
where the space is limited, or where belting is inadmissible.
In carrying out my invention, I apply the frictional gearing to a wheel which may
be driven by the engine direct, or through the gearing, as desired. The wheel is
formed with an annular flange on one side thereof, within which the gearing works.
The gearing consists of a pair of pulleys of suitable diameter mounted on stud axles
carried by adjustable slides mounted in the same vertical plane in a suitable frame
placed close to the wheel, and on the side opposite to the engine, or the machinery to
be driven, as the case may be.
The slides are connected by a right and left hand threaded link rod with a threaded
socket, upon turning which in one direction or the other, the slides may be drawn
together or separated, as may be desired.
Upon the axle of the dynamo or machine to be driven, I mount a pulley which
works bet ween, and in contact with the two adjustable pulleys and the inner
periphery of the flange, and upon the opposite side of the adjustable pulleys I place
another pulley, or it may be a loose Hanged drum or cylinder, which rotates in
contact with the fly wheel and the adjustable pulleys.
The amount of friction required is obtained by drawing together the two adjustable
pulleys, which operation forces the other two pulleys, or their equivalent, apart, and
into contact with the fly wheel.
I would here remark that the dynamo or other machine should be so arranged with
relation to its driver, as to allow of its position being adjusted when necessary.
The wheel may be mounted on the crank axle of the engine, or on the main axle of
the machine to be driven, in which case the prime mover will take the place of the
dynamo, as mentioned above, and the machine being driven will be rotated at a slower
speed than the driver.
DL: 00

page_text: I EDWARD JONES of 13 Blenheim Square, Leeds in the County of York, Mechanical
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:
The object of this invention is to provide a simple and effective friction gear applic-
able to the driving of all kinds of machinery, such gear being specially adapted to the
driving of dynamos for electric lighting, for use on ship board, or in other places
where the space is limited, or where belting is inadmissable.
In carrying out my invention, I apply the frictional gearing to a wheel, which may
be the driven wheel or the driver as desired.
In the accompanying drawings:
Figs. 1, 2, and 3 shew in sectional views one arrangement of the frictional gearing,
Fig. 1 being a partial plan view of the engine and dynamo foundation framing, the
friction gear being shown in section. Fig. 2 is a front view of the friction gear,
partly in section, taken on the line 1, 2 of Fig. 1; and Fig. 3 is a sectional elevation
at right angles to Fig. 2, taken on the line 3, 4 of Fig. 1.
A is the fly wheel of a horizontal engine. This wheel A, which is keyed on the end
of the crank shaft A*, is formed with an annular flange a on one side thereof, within
which the frictional gearing works.
This gearing consists of a pair of pulleys B B₁, of suitable diameter, mounted on
stud axles bb carried by adjustable slides b¹. These slides are mounted in a vertically
slotted frame C bolted upon the foundation frame A', the vertical portion of this
frame standing close to the flange a of the wheel A, on the side opposite to the
engine.
The slides 616 may be formed in two parts, held together by pressure screws 626³,
as shown best in Figs. 2 and 3, and they embrace the central web of the slotted vertical
frame C. They are connected by the right and left hand threaded link rods 6 6*,
which are pivotted on the pressure screw 63, and their outer threaded ends enter the
threaded socket 65, upon turning which, by the aid of a wrench, in one direction or
the other, the slides 6₁₁ will be drawn together or separated as desired.
D is the dynamo or other machine to be driven, which will be placed on a suitable
bed plate, and its axle d carries a pulley D' which works between and in contact with

page_text: the two adjustable pulleys B B and the inner periphery of the flange a. At the
opposite side of the adjustable pulleys B B', another pulley or loose flanged drum or
cylinder E is mounted, which rotates on a stud axle e adjustably carried by the frame C,
and also runs in contact with the inner periphery of the flange a of the fly wheel A and
the adjustable pulleys B B. These pulleys or drums are preferably constructed, as
seen in Fig. 1, to receive rings of wood, leather, or other good friction wearing
surface d', in the manner well known.
The amount of friction required to transmit the rotary motion of the fly wheel A to
the dynamo or other machine, is obtained by drawing together the two adjustable
pulleys B B by turning the threaded socket 6, which operation tends to force
the other two pulleys D¹ and E apart, and into contact with the inner periphery of the
fly wheel A, and thus to ensure sufficient frictional contact between the surfaces of the
pulleys or drums D and E and the inner periphery of the flange of the wheel A, to prevent
any loss of the motion of the engine in transmission to the dynamo or other machine
to be driven.
A modification of the frictional gearing is shewn at Figs. 4 and 5, in which three
adjustable frictional drums or pulleys, B B¹ B2, are employed to transmit the motion
of the wheel A to a central drum D₁ on the axle d of the dynamo or other machine to
be driven; Fig. 4 being a sectional elevation of this arrangement of the gearing, and
Fig. 5 a front view, partly in section.
The dynamo or other machine to be driven is placed in front of the wheel A,
with its axle d on the same vertical line with the crank shaft of the engine, but
excentric thereto, that is, with its axle a little below the crank shaft, and in the plane
of the flange of the wheel A. The three adjustable friction drums B B₁ B² are mounted
on stud axles carried in curved slots formed in the frame C. These slots are concen-
tric with a point intermediate of the centres of the crank shaft of the engine and the
axle of the drum D₁ of the dynamo or machine to be driven, and therefore excentric
to the peripheries of both the flanged wheel A and the drum D¹.
In order to cause the drums B B B2 to bear with sufficient frictional force on the inner
periphery of the flange a of the wheel A, or to allow for wear of the parts, it will only
be necessary to adjust the position of the stud axles in the curved slots by loosening
the nuts, and moving the axles of the drums B B₁ round to the left hand in the direction
of the arrow (see Fig. 5), and that of the drum B2 in the opposite direction. In some
cases it may be desirable to provide means whereby this adjustment may be made
while the engine is running. A convenient arrangement for effecting this object will
be to mount a worm wheel loosely upon the axle of the dynamo, and to form or mount
on the boss of this wheel, excentrics, the straps of which are connected by an arrange-
ment of toggle levers or links with the axles of the frictional drums. The worm wheel
may be operated by hand in either direction, while the engine is in motion, to with-
draw the frictional pullies from the flange of the wheel A and stop the machine being
driven, or to force them into contact therewith, to drive the machine, as will be well
understood.
The flanged flywheel A may be mounted on the crank axle a of the engine, as
described above, or on the main axle of the machine to be driven. In this latter case,
the prime mover will take the place of the dynamo, as mentioned above, and the
machine being driven will be rotated at a slower speed than the driver.
In the Diagram Fig. 6, I have suggested the application of my frictional driving
gear to the driving of a tram car by electricity, the Hanged wheel A being in this case
one of the running wheels of the vehicle. The drum D is mounted on the axle of
the motor, and the friction wheels B B¹ are fitted in a manner similar to the first
described arrangement of friction driving mechanism, but in a horizontal line instead
of vertical. The bearings of the axles of the friction wheels are carried in a frame
suitably supported so as to prevent the vibration of the car deranging the friction
contact between the driver and the driven wheel. The threaded socket, which turns in
bearings in the supporting frame, may be operated from the car to draw the friction wheels
together, or thrust them apart, by any convenient arrangement of gear, for example,
by worm and bevel gear, as shewn in the diagram.

page_text: The motor will always be at work, whether the car is running or stopping, and to
prevent undue strain on the gearing, the axle of the motor may be arranged so that
the pulley D may be forced into contact with the running wheel A, as well as the
pulley or drum Ě.
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 :—
In friction gear for driving machinery, the combination with a flanged driving or
driven wheel, of a series of adjustably mounted friction pulleys and a drum on the
axle of the machine to be driven, or on the driver axle, substantially as herein
described and shown.
Datad this 2nd day of July 1007
NEWTON & SON,
Agents for the Applicant.