Improvements in and relating to Machinery Driving Belts.
Year: 1899

page_text: I, JAMES PATON, of Johnstone, Renfrewshire, Manufacturer, do hereby declare
the nature of my invention to be as follows:-
This invention has reference to improvements in and relating to machinery
driving belting, and consists in providing a strain isolated leather surface next
the pulleys, in combination with a backing of cotton canvas or the like, which
shall take up the entire driving strain.
This would be carried into practice by taking a canvas band of one, two, or
more layers, or any suitable woven or plaited fabric, and securing to the back
thereof a series of strips of leather in close contact or at short spaced distances
apart, these being attached to the canvas band by sewing, rivetting or like
fastening.
The leather surface would be placed next the pulleys and thus take up all fric-
tional contact, so that there will be no fraying of the canvas, and the leather
being in separated strips will be isolated from tensile strain which will be taken
up entirely by the canvas.
In some cases such as for small bands, instead of canvas, cords may be used
rivetted to the leather strips, or otherwise the cords be passed through small
laminated strips of leather pierced with holes at spaced distances apart.
The canvas used may be plain canvas as ordinarily used for belting, or may
be impregnated and built up with gutta-percha or balata solution, india-rubber,
or analogous gums.
Dated the 29th December 1899.
COMPLETE SPECIFICATION.
Improvements in and relating to Machinery Driving Belts.
I, JAMES PATON, of Johnstone, Renfrewshire, Manufacturer, do hereby declare
the nature of my invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement in
writing:-
This invention has reference to improvements in and relating to machinery
driving belting, and consists in providing a practically strain isolated leather
surface next the pulleys, consisting of a series of transverse strips in combina-
tion with a backing of woven material, which shall take up the driving strain,
Price Rd I

page_text: And in order that my said invention and the manner of carrying same into
practice may be properly understood I have hereunto appended a sheet of ex-
planatory drawings in which Figures 1 and 2 represent à transverse section and
inverted plan view respectively of a piece of belting as made in accordance with
my improvements. Figures 3 and 4 are views corresponding to Figures 1 and 2
and Figure 5 a plan view, showing the leather strips carried round the edges and
secured to the top surface of canvas. Figures 6 and 7 are views corresponding
to Figures 1 and 2, showing a modification in which a small solid strip is left
at the edges of the leather cut strips. Figures 8, 9 and 10 are views of modifi-
cations hereinafter referred to.
Referring to these drawings:-
The improvements are carried into practice by taking a canvas band a of one,
two, or more layers, of any suitable woven or plaited fabric, and securing to the
back thereof a series of strips of leather b in close contact at c or at short spaced
distances apart, these being attached to the canvas band by sewing at d or by
rivetting, cements or solutions.
The leather surface 6 would be placed next the pulleys and thus take up all
frictional contact, so that there will be no fraying of the canvas, and the leather
being in separate strips will be practically isolated from tensile strain which
will be taken up by the canvas.
In the modification shown in Figures 3 to 6 the leather strips b are extended at e
round the edges of the canvas a and secured by sewing at d. In the modification
shown in Figures 6 and 7 the leather is cut at c into strips b, but a small edge
space is left solid to connect all the strips.
In the modification shown in Figure 8 the ends of the transverse leather
strips are shown as scarfed at to form an overlap joint. In Figure 9 the
strips are shown as of a kneed or diagonal shape; and in Figure 10 the leather
is formed with transverse grooves 62 at short spaced distances apart to form an
equivalent for the strips.
The canvas used may be plain canvas as ordinarily used for belting, or may
be impregnated and built up with gutta-percha or balata solution, india-rubber,
or analogous gums.
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:-
First. A machinery driving belt formed from a backing of layers of canvas or
the like, which shall take up the tensile or driving strain in combination with a
series of transverse strips, or their equivalent, of leather which shall take up the
frictional contact of pulleys substantially as set forth.
Second. Driving belt consisting of a woven or plaited band and a layer of
leather connected therewith, characterized by the fact, that the layer of leather
is composed of strips 6 or their equivalent, located transversely to the woven or
plaited band a and which dispenses with the stretching heretofore necessary
using leather bands substantially as set forth.
Dated the 28th September 1900.
in
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.