Improvements in Machine Belting.
Year: 1892

page_text: Date of Application, 26th May, 1892-Accepted, 2nd July, 1892
COMPLETE SPECIFICATION..
[Communicated from abroad by ROBERT COWEN, of Cambridgeport, Massa-
chusetts, United States of America, Gentleman.]
Improvements in Machine Belting.
I, HENRY HARRIS. LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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:-
This invention has relation to belting generally, though more particularly to that
class or kind commonly known as "india rubber belting," in which the goods are
made from rubber cloth or rubber duck folded to a sufficient thickness and desired
width, and the several plies are held together or blended into one by what is
commonly termed "friction."
In the use of belting of the character mentioned there is liability after a time of
failure of the friction, and consequent tearing apart of the plies. To remedy this
objection it has been proposed to stitch the plies together (in addition to cementing
them together by means of friction) by lines of stitches running longitudinally of
the belt. A fault, however, is also found with this construction in that the outside
threads of the lines of stitches take all of the strain in passing around pullies or
drums, which threads either break or operate to weaken the belt by cutting into
the duck.
It is the object of the present invention to provide such improvements in stitching
belting as will obviate the objections mentioned, and hold the plies securely
together.
To these ends the invention consists of a belt in which the plies are stitched
together by lines of stitches, the threads of which stitches upon one side run
longitudinally of the belt, while on the opposite side the threads of the stitches run
or lie across the belt, all as is hereafter more fully described and claimed.
Reference is to be had to the accompanying drawing and the letters marked
thereon, making a part of this Specification, the same letters designating the same
parts or features, as the case may be wherever they occur.
Of the drawings, Figure 1 is a plan view of the inside face of the improved
belting in which the threads of the lines of stitches run longitudinally of the said
belting. Figure 2 is a plan view of the outside face of the belting in which the
threads of the lines of stitches lie across the same. Fig. 3 is a cross sectional view
on a line coincident with a line of cross threads. Fig. 4 is a perspective view
showing my improved belting in use upon a pair of pulleys.
In the drawings a designates the improved belting shown, in the present instance,
as made up from four folds or plies of india rubber duck frictionally blended into
one. A greate or less number of plies may, however, be employed and other cloth
than duck may be used.
bdesignates lines of stitches, the threads of which, lying on the inside of the
belting run longitudinally of the same; and c designates the lines of stitches as
they appear on the outside of the belting, that is as lying or running across the
same, the longitudinal lines of threads being interlocked, as at d, with the lines of
cross threads at all points where the former enter the belting. The character of
the stitching is such that each line of cross threads c intersects and is interlocked
with each line of ongitudinal threads b.
With this construction, and the belt arranged upon pulleys, as shown in Fig. 4-
that is, so that the cross threads of the lines of stitches will be on the outside and
the longitudinal tl.reads on the inside, no undue strain is brought upon the threads
of the stitches to break them or cause them to cut into the duck, as is the case

page_text: where the threads of the lines of stitches on both the outside and inside run
longitudinally of the belt, as hereinbefore explained.
It is to be observed that the manner of stitching belting described, may be
employed on other kinds than rubber belts.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is-
1. Belting, stitched or quilted with lines of stitches, the threads of which on one
side of the face extend longitudinally of the belt, and on the opposite side run
across or transversely of the same, as set forth.
2. Belting, composed of a plurality of plies of material united by lines of stitches,
the threads of which stitches on one side of face extend longitudinally of the belt,
and on the opposite side run across or transversely of the same, as set forth.
Dated this 26th day of May 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.