Year: 1887

page_text: Date of Application, 11th Oct., 1887
Specification Accepted, 27th Jan., 1888
We, JAMES EZEKIEL EMERSON and THOMAS MIDGLEY both of Beaver Falls, Penn-
sylvania, United States of America, Manufacturers, 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 relates to wire belting or fabric, and has for its object an improve-
ment on our former article, shown in patent, No. 6882, bearing date of May 10th,
1887.
•
In the further development of our invention, we have discovered that wire belting
and wire cloth or fabric can be greatly improved by inserting a core or body of elastic
material in the coil which engages with the ends of the transverse sections; this core
protects the ends of the coils of the transverse sections and prevents their protruding
in fabric or cloth and when rolled down for belting it forms a superior working edgo
for the belt. We have also discovered that it is very important that the belt should
be of uniform thickness throughout its entire width. To accomplish this result, we
have adopted right and left longitudinal coils on the edges of the article and also right
and left coils of the metallic core enclosed by the longitudinal coils. In wire cloth or
fabric the right and left longitudinal coils add greatly to the appearance of the article,
as they make both edges look alike; and in belting after the coils have been rolled or
flattened, both sides and edges have the same appearance. We have also discovered
that wire belts are liable to increase in width by use, unless stayed by rods crossing
the belt; the rod is objectionable for the reason that it adds to the weight and cost of
the belt, while it renders no practicable service.
To overcome this objection we compress the transverse sections by lateral pressure
applied while the coils are being rolled or flattened under longitudinal tension. By
this construction the angle of the links is diminished, the strain brought into more
direct and parallel lines, the coils reduced about one-fourth in width, while the length
of the links is nearly doubled, and a compact flexible belt produced which will not
increase in length or width by ordinary wear, strain or use.
The invention will be hereinafter described, and particularly pointed out in the
claims.

page_text: In the accompanying drawing which forms a part of this specification,
Figure 1 is a plan view of a section of wire cloth or fabric before it has been rolled
or flattened.
Figure 2 is an edge view of the same.
Figure 3 is a plan of the section shown in Figure 1, after having been rolled and
compressed laterally, and
Figure 4 is an edge view of said section.
Reference being had to the drawing and the letters marked thereon, A, represents
helical coils of wire, which are woven together by one coil or section being screwed
into another until a sheet of any desired length is formed. To secure and protect the
ends of the transverse sections A, a flexible or elastic core or body B, is applied along
the ends of the section, and is encircled by longitudinal sections of coiled wire, C,
which are connected to the transverse sections by the latter being screwed into the
former, so that two or more of the coils at each end of the transverse sections are
enclosed in the coils of the longitudinal sections. The core B, and the longitudinal
sections are coiled right and left to give finish to the cloth or belt by making both
edges look alike, and the core is coiled at a greater angle or pitch than the transverse
or the longitudinal sections. By giving a greater pitch to the coils of the core than
to the longitudinal sections, the latter fold between the coils of the former when the
coils are rolled or flattened for forming belting, as shown at a, in Figure 3, and
the inner portion of the coils of said longitudinal sections engage with the coils of the
transverse sections at a point between the junction of said transverse sections, thus
forming only three thicknesses of wire at any point of intersection or crossing of the
wire when rolled. By this construction a uniform thickness is maintained throughout
the width of the belt, which is a very important feature to secure the true and even
running of the belt.
In constructing wide cloth or belting any desired number of the longitudinal
sections C, may be applied intermediate of the edges to stiffen the article, and in wire
cloth the core B may be of rubber or other flexible material, but in the construction of
belting, the core must be elastic as well as flexible to accommodate itself to the
stretching of the links of the transverse sections A.
By comparing Figures 1 and 3, it will be observed that the width of the cloth is
reduced about one fourth and the links crowded together, thus bringing the strain into
more direct and parallel lines, while the length is nearly doubled.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
First. Wire belting or fabric consisting of transverse sections of interwoven wire,
an elastic core or body extending along the ends of the transverse sections, and longi-
tudinal sections of coiled wire engaging with the ends of the transverse sections and
encircling the core; substantially as described.
Second. Wire belting or fabric consisting of transverse sections of interwoven wire,
coiled metallic cores extending along the ends of the transverse sections, and longitu-
dinal sections of coiled wire engaging with the ends of the transverse sections and
encircling the metallic cores, substantially as described.
Third. Wire belting or fabric consisting of transverse sections of interwoven wire,
metallic cores of coiled wire extending along the ends of the transverse sections,
and right and left coiled longitudinal sections of wire engaging with the ends of
the transverse sections and encircling the coiled wire cores, substantially as described.
Fourth. Wire belting or fabric consisting of transverse sections of interwoven
wire, right and left coiled cores of wire extending along the ends of the transverse
sections and right and left coiled longitudinal sections, of wire engaging with the
ends of the transverse sections, encircling the coiled metallic cores, and embedded
between the coils thereof, the whole being, rolled or flattened, substantially as
described.

page_text: Fifth. Wire belting or fabric consisting of transverse sections of interwoven wire,
right and left coiled cores of wire extending along the ends of the transverse sections,
and right and left coiled longitudinal sections of wire engaging with the ends of the
transverse sections encircling the coiled metallic cores and embedded between the
coils, the whole being rolled or flattened and compressed laterally, substantially as
described.