Year: 1888

page_text: Date of Application. 17th July, 1838
Specification Accented 19th Oct.. 1888
We, JAMES EZEKIEL EMERSON and THOMAS MIDGLEY, of Beaver Falls, in the
County of Beaver and State of Pennsylvania, one of the 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 :-
Our invention relates to Wire Belting and has for its object the manufacture of
belting of great strength and durability.
In the accompanying drawing which forms part of this specification Figure 1
represents an end view of a tube of coiled intersected wires. Figure 2 is a plan of
the same. Figure 3 is a per-pective view of the tube partly compressed to feed it
between a pair of rolls. Figure 4 is a plan of the belting after it has been rolled, and
Figure 5 is an edge view.
Reference being had to the drawing, and the letters marked thereon, A, indicates
the body of the belt, which is made of two thicknesses or layers a, b, of woven wire,
which are formed by interwoven coiled sections c.
In manufacturing belting of our improved construction, sections of coiled wire of
a suitable length, are interwoven by twisting or screwing one section into another and
forming a tube B, as shown in Figure 1. In screwing or interweaving the coiled
sections, they are made to terminate in a line along the length of the tube to make
the joints overlap, and prevent the belting made from the tube having any point in it
which shall be weakened sufficiently to impair its strength. The sections care usually
of a length equal to about four times the circumference of the tube, and when one
section has been screwed into the tube until its free end has been reached another
section is applied and interwoven in like manner, until a tube of any desired length,
corresponding with the length of belt required has been woven.
It will be observed that the sections are interwoven at a right angle to the length
of the tube, as shown in Figure 1. After the tube has been completed it is com-
pressed horizontally and passed between a pair of rolls, the pressure of which elongates
and flattens the links as shown at d, in Figures 4 and 5, and forms a belting of two
separate thicknesses a, b, the edges e, f, which constitute the edges of the belt, being
formed by the periphery or circumference of the tube when pressed together or doubled

page_text: and rolled to form the double thickness belt. By this construction no ragged ends or
strands of wire appear on the edges of the belting, while they are formed of a double
thickness of longitudinal surfaces of links, as shown in Figure 5.
In passing the tube through the rolls, it is folded so as to bring the joints or broken
ends of the coiled sections about in the centre of one of the flat bearing surfaces a, b,
of the belting, to prevent any ragged ends from protruding on either edge, and is
kept under tension. The tube or belting is prevented from spreading while being
rolled, by placing solid bars of metal of slightly less thickness than the rolled belting
between the rolls while the tube is passing through. The bars are set such a distance
apart as to allow the tube to fold or double, but to prevent the coils or helices from
spreading laterally.
By doubling the body of the belting, not only are superior working edges formed,
but the helting may be made of much lighter wire than when only one thickness
is used, thus greatly increasing its strength without correspondingly increasing
its weight.
To provide still greater strength, the sections of coiled wire may be increased to
any desired number, thus making each thickness or layer a, b, consist of two or more
intersected coiled sections c, one on top of the other.
After the belting has been rolled it is tempered in the usual manner, and may then
if desired, be coated or covered with rubber or other plastic material, and the rubber
rolled into the interstices between the links, and canvas or rubber cloth applied to the
rubber coated surfaces, or the surfaces may be covered with canvas previously treated
with a paint which becomes adhesive under heat.
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
First. The method of manufacturing belting herein described which consists in
weaving sections of coiled wire into a tube, then compressing the tube and passing it
between rolls, whereby a double thickness of belting is formed, and the lielices flattened
and stretched into elongated links.
Second. Wire belting composed of interwoven transverse sections of wire presenting
folded and unbroken edges, substantially as described.
Third. Wire belting composed of two thicknesses or layers of interwoven sections
of coiled helices, presenting folded and unbroken edges, substantially as described.
Fourth. Wire belting composed of two thicknesses or layers of flattened interwoven
sections of coiled wire, presenting a continuous wearing surface with folded and
unbroken edges, substantially as described.
JAMES EZEKIEL EMERSON.
THOMAS MIDGLEY.
Per Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.