Improvements in Positive Endless Band Driving Gear.
Year: 1895

page_text: Date of Application, 18th Feb., 1895
Complete Specification Left, 14th Nov., 1895-Accepted, 15th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Positive Endless Band Driving Gear.
CHARLES OTTO DEUTSCHMANN Gunmaker of 8 Nag's Head Road Ponder's
End in the County of Middlesex, and JAMES ELLIOTT PARK Manufacturer of
Specialties of 140 Holland Street, Glasgow in the County of Lanark Scotland do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in driving gear, which is applicable to
vehicles propelled by manual, or pedal, power, and also to cable haulage, conveyors,
dredger-cables, and the like.
press
tool
Briefly described, the improved gear consists in a flexible steel wire (or other
suitable metal) cord along which balls are placed of any suitable hard material,
preferably metal. These balls are of a size corresponding to the diameter of
the flexible cord, and are placed at such distances apart as may be required.
Each ball has a hole through the centre for the passage of the flexible cord.
It is not
The balls are fixed and rendered immovable by means of pressure.
necessary that the balls should be absolutely spherical, and any suitable
may be used. The method of joining the two ends of the flexible cord consists
in sheathing the two ends in a metal capsule, or collar, each end separately and
inserting them into opposite sides of a joining ball of special device and securing
them by means of a set screw with tapered point, which penetrates between the two
metal sheathed ends, making a groove for itself by indentation, and pressing the
ends of the flexible cord so firmly against the interior sides of the joining ball, as
to make a secure joint. The special feature of the joining ball is, that it has two
holes, each bored through the centre in a diagonal direction towards the periphery
paralell to each other, and bored from opposite sides of the ball. It has also a
tapped hole from the top of the ball to the centre which intersects the wall between
the two paralell diagonal holes. When the tapered screw pin is inserted into
the tapped hole, it penetrates between the sheathed ends of the flexible cord.
Although this method of joining the ends of the flexible cord is an important
part of this invention, it is not essential as other methods of joining may be
adopted, without departing from the essential features of the improvements.
The endless ball-band or chain, constructed as above described, is fitted to driving
wheels with grooves corresponding to the size of the balls; and having a slot in
the projecting parts between the grooves, corresponding to the diameter of the
flexible cord, or, when adapted for cable haulage, conveyors, dredgers, and the like,
the balls fit into grooves in projections of suitable device attached to the vehicle,
dredger-bucket, or conveyor, which it is desired to set in motion.
Dated this Sixteenth day of February 1895.

page_text: improve sve less and Driving Gear.
We, CHARLES OTTO DEUTSCHMANN of 1 Vincent Square Westminster late of
8 Nag'e Head Road Ponder's End Middlesex Engineer and Gunmaker and
JAMES ELLIOTT PARK of 140 Holland Street Glasgow Scotland, Manufacturer
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 improved gear consists in a flexible steel wire (or other suitable metal) cord
along which are placed balls or discs of any suitable hard material preferably
metal. These balls are of a size corresponding to the diameter of the flexible
cord and are placed at such distances apart as may be required. Each ball has
a hole through the centre for the passage of the flexible cord. The balls are
fixed and rendered immovable by means of pressure. It is not necessary that the
balls should be absolutely spherical and any suitable press tool may be used.
The method of joining the two ends of the flexible cord consists in sheathing the
two ends in a metal capsule or collar, each end separately, and inserting them
into opposite sides of a joining ball of special device, and securing them by means
of a set screw, with tapered point, which penetrates between the two metal
sheathed ends, making a groove for itself by indentation, and, pressing the ends
of the flexible cord so firmly against the interior sides of the joining ball, as to
make a secure joint. The special feature of the joining ball is, that it has two
holes, each bored through the centre in a diagonal direction towards the periphery,
parallel to each other, and bored from opposite sides of the ball. It has also a
tapped hole from the top of the ball to the centre, which intersects the wall
between the two parallel diagonal holes. When the tapered screw pin is inserted
into the tapped hole, it penetrates between the sheathed ends of the flexible cord.
Although this method of joining the ends of the flexible cord is an important part
of this invention, it is not essential, as other methods of joining may be adopted
without departing from the essential features of the improvements. For instance,
a joint may be made by laying the ends of the cord parallel for some distance, and
having several of the balls drilled with two parallel holes as described above. The
ends of the cord are inserted in opposite directions through each of these double
holed balls and they are then compressed into position in the same manner as the
balls upon the single part of the cord. The endless ball-band or chain, constructed
as above described, is fitted to driving wheels with grooves corresponding to the
size of the balls and having a slot in the projecting parts between the grooves
corresponding to the diameter of the flexible cord, or, when adapted for cable
haulage, conveyors, dredgers, and the like, the balls fit into grooves in projections
of suitable device attached to the vehicle, dredger-bucket, or conveyor, which it is
desired to set in motion.
To further explain our invention and demonstrate more clearly the method of
practically carrying it out we refer to the accompanying drawing:
Figure 1 represents the body of the flexible driving band. The flexible
cord "A" is passed through the hole "C" in the ball "B." Pressure being
applied to the ball "B" the flexible cord "A" is compressed as shown at "D."
The portion of the cord between each ball being of a larger diameter than the
portion covered by the ball, the latter is held firmly in place.
Figure 2 shows the joining of the driving band to make it endless, as effected
by the two ends running parallel for any convenient distance, passing through
several balls in succession, each being pressed over the double cord.
Figure 3 and 4 shows the method of
make it endless, but detachable at will.
joining the two ends of the driving band to
Both ends of the cord "A" (Figure 3)

page_text: are passed diagonally into the ball "B" (Figure 3) until they are flush with the
periphery of the ball and the tapered screw-pin "C" (Figure 3) is screwed down
between the ends of the cord in the centre of the ball as shown in Figure 4.
Figures 5 and 6 show how the driving band works in the grooves of the driving
wheels.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.
1st. The combination of a flexible cord of metal or other suitable material with
a series of balls or discs of metal or other suitable material fixed and made
immovable thereon by means of pressure substantially as described.
2nd. The method of joining two parts of flexible cord together by means of a
joint ball substantially as described.
3rd. A driving band as described, and as stated in our first claim, joined by any
known method.
Dated this Eleventh day of November 1895.
CHARLES OTTO DEUTSCHMANN.
JAMES ELLIOTT PARK.