Improvements in the Manufacture of Driving Belts and Bands.
Year: 1899

page_text: Date of Application, 28th June, 1899
Complete Specification Left, 27th Mar., 1900-Accepted, 28th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Driving Belts and Bands.
I, JOHN ARTHUR YOUNG, of Dobcross, near Oldham, in the County of York,
Clerk, do hereby declare the nature of this invention to be as follows:-
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This invention relates to improvements in the manufacture of driving belts
or bands used in connection with drums or pulleys for transmitting motion to
machinery the objects of the invention being to increase the adhesion or grip
on the pulley and consequently the driving power of such belts or bands, and
at the same time to increase their strength and durability, without materially
Increasing their cost.
The improved driving belt or bands may be made of leather or other suitable
material and of any suitable width, as may be required.
The invention consists principally in making the said belts or bands of two,
three or more thicknesses of leather or material superposed, the lower thickness
being of the desired width of the belt and the others each decreasing in width
so that the transverse section of the improved belt when finished will be that
of a flat pyramid rising by steps towards the centre where it is narrowest and
also thickest. The different thicknesses of leather or material of varying widths
being superposed in the manner described, are all stitched or cemented (or both
stitched and cemented) together so as to form one solid belt the central part
of which will be thickest and strongest, and graduated down towards each edge,
which will be composed of one layer only.
A driving belt or strap thus made will be found to have increased driving
power especially when used in connection with drums or pulleys having a
convex surface, and in order to allow of the escape of air from between the
belts and the drum pulley and to increase the adhesion we punch or otherwise
form a series or row (or two or more rows) of holes through the central or
thickest part of the belt, such holes being preferably of a conical form, being
larger in diameter towards the inside, so as to avoid all tendency to the holes
becoming closed when passing round pulleys of small diameter.
In some cases I propose to introduce into these holes metal or other eyelets
so that the improved driving belts may be used in connection with the sprocket
wheels for driving motor cars and the like.
Datel 11 01
f T 1000
GEO DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester,
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Driving Belts and Bands.
I, JOHN ARTHUR YOUNG, of Dobcross, near Oldham, in the County of York.
Clerk, do hereby declare the nature of this invention and in what manner the
same is to he performed, to be particularly described and ascertained in and
by the following statement:-
This invention relates to improvements in the manufacture of driving belts

page_text: "
or bands used in connection with drums or pulleys for transmitting motion to
machinery the objects of the invention being to increase the adhesion or-"grip
on the pulley and consequently the driving power of such belts or bands, and
at the same time to increase their strength and durability, without materially
increasing their cost.
The improved driving belt or bands may be made of leather or other suitable
material and of any suitable width, as may be required.
In the accompanying drawings to which I hereinafter refer, Fig. 1 represents
the outer or face side of a piece of belting such as is named above, and Fig. 2
is a transverse section of the same. Similar letters refer to similar parts in
both views.
According to this invention I make the said belts or bands of two, three, or
more thicknesses of leather or material superposed, the lower thickness being
of the desired width of the belt and the others as hande each decreasing in
width so that the transverse section of the improved belt when finished will
be that of a flat pyramid rising by steps towards the centre where it is narrowest
and also thickest as shown in Fig. 2. The different thicknesses of leather or
material of varying widths which are superposed in the manner described are
all stitched or cemented, or stitched and cemented together so as to form one
solid belt, the central part of which will be the thickest and strongest and
graduated down towards each edge which will be composed of one layer only.
In order to allow the escape of air from between the belt and the drum or
pulley and thereby increase the adhesion, I punch or otherwise form a series
or row, or two or more rows of holes as d either through the central or other
thicker portion of the belt, said holes being preferably of a conical shape with
the larger diameter on the inner side so as to avoid all tendency of the holes
becoming closed when passing round pulleys of small diameter.
A driving belt or strap made as described will have increased driving power
especially when employed in connection with drums or pulleys having a convex
surface.
In some cases I may introduce into the holes hereinbefore named, metal or
other eyelets so as to enable the improved belt to be used in connection with
sprocket wheels for driving motor cars and the like.
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. A driving belt or band such as may be used in connection with drums and
pulleys formed of two, three, or more thicknesses of leather or material of
varying widths superposed, either stitched or cemented, or stitched and cemented
together so as to form one solid belt of which the thickest part is in the centre
substantially as and for the purpose hereinbefore described.
2. A driving belt or band such as may be employed in connection with drums
pulleys and like uses formed with a series or row, or two or more rows of holes
punched or otherwise formed therein for the purpose and in the manner sub
stantially as hereinbefore described.
3. A driving belt or band such as may be employed in connection with
drums. pulleys and like uses formed of two, three, or more thicknesses of leather
or material of varying widths superposed, stitched, cemented, or otherwise united
so as to form one solid belt, with a series or row, or two or more rows of holes
formed therein for the purpose and in the manner substantially as hereinbefor
described.
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester..