Improvements in the Construction of Driving Bands or Belts.
Year: 1891

page_text: Date of Application, 17th Sept., 1891
Complete Specification Left, 17th June, 1892-Accepted, 23rd July, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Driving Bands or Belts.
We, RICHARD WOODHOUSE and SAMUEL MITCHELL, of the firm of
Woodhouse & Mitchell, of Brighouse, in the County of York, Engineers, do.
hereby declare the nature of this invention to be as follows:-
Our invention has reference to V or grip driving bands composed of a series of.
layers of leather or other material built one upon another, and our improvements.
in such driving bands consist in severing them crosswise, and at suitable distances.
apart, on the inner or under layers of the leather, so as to allow the driving band
to bend over and adjust itself to the curve of the driving pulley; and in order to
compensate for loss of strength caused by severing the underside of the belt, we
apply between the remaining uncut layers of leather, or on the top side or under-
side thereof, a sheet of steel or other strong flexible material, by which means we
manufacture a driving band of greater durability and one which will readily adjust
itself to the periphery of the driving pulleys, thereby obtaining a better grip and.
consequent increased driving power.
The flexible plates of steel or other material may also be employed in conjunction
with flat driving belts, working within grooves slightly tapering, in which case the
sides of the driving belts are made with corresponding tapering sides to fit within
the tapering groove, so as to increase the grip. The improved flat driving belt is
made of such a width that only the sides grip the groove of the pulley, the under-
side of the belt being clear of the bottom of the groove; but when extra strain is
put upon the strap, it will descend to the bottom of the groove, and by its.
ompression increase the grip; also when the belt becomes worn it will adapt itself
to the bottom of the groove.
Dated this 16th day of September 1891.
TASKER & CROSSLEY,.
Halifax, Agents.
COMPLETE SPECIFICATION.
Improvements in the Construction of Driving Bands or Belts.
We, RICHARD WOODHOUSE and SAMUEL MITCHELL, of the firm of
Woodhouse and Mitchell, of Brighouse, in the County of York, Engineers, 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 :
Our invention has reference to ✓ or grip driving bands composed of a series of
layers of leather or other material built one upon another; and in order that our
improvements may be better understood, we will make reference to the accom--
panying sheet of drawings illustrative thereof, wherein
Fig. 1 is a side elevation of one form or construction of our improved belt.
According to this method the belt is composed of any suitable number of layers
of leather or other suitable material a secured together by rivets or by any other
means. We then sever this belt crosswise as shewn at c on the underside and at
suitable distances apart, so as to allow the driving band to bend over and adjust
itself to the curve of the driving pulley; and in order to compensate for loss of
strength caused by severing the underside of the belt, we introduce between the
remaining uncut layers of leather, or on the top side thereof, a sheet of steel or
other strong flexible material d, by which means we manufacture a driving band of.
P 8d1

page_text: great durability, and one which will readily adjust itself to the periphery of the
driving pulleys, thereby obtaining a better grip and consequent increased driving
power.
Fig. 2 shews edge view or cross section of our improved belt, where the sides
thereof are made taper so as to grip the inner sides of the grooves formed within
the driving pulley A. Instead of the belt being severed crosswise as shewn at c in
Fig. 1, the belt may be so built up as to leave-spaces e, as shewn in Fig. 3.which
will permit of the belt bending or following the curve of the driving pulley. Fig.A
shews another form of belt B, which must also be severed crosswise or built up to
leave spaces as at e.
The flexible plates of steel or other material d may also be employed in con-
junction with flat driving belts, working within grooves slightly tapering as shewn
in Figs. 5 and 6, in which case the parallel sides of the driving belts are made with
corresponding tapering sides to fit within the tapering groove, so as to increase the
grip. The improved flat driving belt is made of such a width that only the sides
grip the groove of the pulley, the underside of the belt being clear of the bottom of
the groove; but when extra strain is put upon the strap, it will descend to the
bottom of the groove, and by its compression increase the grip; also when the belt
becomes worn it will adapt itself to the bottom of the groove.
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 :-
Firstly. The construction of a driving belt composed of layers of leather and
steel plates as shewn in Figs. 1 and 2 having the underside of the leather severed
in manner and for purposes described.
Secondly. The construction of a driving belt as shewn in Figs. 3, 5 and 6 com-
posed of one or more steel plates and layers of leather, having tapering sides all as
described and for purposes set forth.
Dated this 16th day of June 1892.
TASKER & CROSSLEY,
Halifax, Agents.