Straps for other rurposes.
Year: 1885

page_text: Straps for other rurposes.
We HENRY BARRETT and JOHN JAMES VARLEY, both of Charterhouse Buildings,
Goswell Road, in the county of Middlesex, Manufacturers, do hereby declare
the nature of the said invention for " IMPROVEMENTS IN DRIVING BANDS FOR
MACHINERY AND BANDS AND STRAPS FOR OTHER PURPOSES to be as follows:-
"
This invention relates to forming elastic driving bands for machinery, straps for
driving reins and harness traces and bands and straps for other purposes, of
combined vulcanized india rubber and a flat core or cores consisting of a strip or
length or strips or lengths of suitable flexible metal such as flat spring steel or of
other suitable material such as ebonite.
In manufacturing the straps or bands I cover the core or cores (when made of
flat metal) with hard rubber, hemp, or otherwise; the ends of the core or cores
are lapped one over the other or not as required. When the ends are lapped
provision can be made if required to allow one end to slide over the other or the
ends can be rivetted or otherwise secured to each other. The core whether coated
or not is then covered with rubber dough or the compound used to produce
vulcanized india rubber and the same is cured or treated in the manner usual to
produce vulcanized rubber.
When manufacturing driving bands or the like not formed in a continuous
piece the length to form the band would be first covered in the manner herein-
before described and the ends be then overlapped and rivetted or otherwise
secured together or laced up in the usual manner.

page_text: 111
Straps for other Purposes.
We HENRY BARRETT and JOHN JAMES VARLEY both of 268, South Lambeth
Road, in the County of Surrey, 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 forming elastic driving bands for machinery, straps for
driving reins and harness traces and bands and straps for other purposes, of
combined vulcanized india rubber and a flat core or cores consisting of a strip or
length or strips or lengths of suitable flexible metal such as flat spring steel or of
other suitable material such as ebonite.
In order to enable our invention to be fully understood we will describe the
same by reference to the accompanying drawing in which figures 1 and 2 represent
a plan and a cross section respectively of a driving band for machinery made
according to our invention. Similar letters in both the figures represent similar
parts.
a, b, c, represent flat cores consisting of strips or lengths of suitable flexible
material such as flat spring steel or of other suitable material such as ebonite ;
d, represents the vulcanized india rubber covering of the said flat cores a, b, c.
In the drawing the band is shewn as having three cores but it will be obvious
that the number of the cores will vary according to the width of the band, and in
the case of driving reins and like straps only one core would be required.
In manufacturing the straps or bands we find it advantageous to cover the
cores a, b, c, (when made of flat metal) with suitable fibrous or textile material
such as hemp as shewn at e, or with hard rubber; the ends of the cores are lapped
one over the other or not as required. When the ends are lapped provision can be
made if required to allow one end to slide over the other or the ends can be
rivetted or otherwise secured to each other. The cores a, b, c, whether coated or
not are then covered with rubber dough or the compound used to producé vulcanized
india-rubber and the same is cured or treated in the manner usual to produce
⚫ vulcanized rubber.
Instead of manufacturing the driving bands or the like in a continuous piece
they can be manufactured of a length or lengths in the manner hereinbefore
described for making a continuous band and the ends can be secured together or
laced up in any suitable manner but we prefer to cut away the elastic covering of
the core for a certain distance at each end of the band so as to leave the core or
cores projecting therefrom; the projecting ends of the core or cores are then passed
one over the other, the ends passing into the band between, the core or cores and
the elastic covering until the cut away ends of the elastic covering meet; rivets,
screws, staples or the like are then passed through the band at either side of the
joint so as to connect the parts firmly together.
By this method we obtain a joint which is flush and smooth.
In manufacturing our improved bands we find that if the core or cores is or are
made in one continuous length of steel or other metal, the band is too rigid for

page_text: some purposes. We therefore find it advantageous to form the core or cores in
parts or lengths of about six feet, the said parts being connected together (before
being covered) by a spring of india-rubber or other suitable spring as described for
connecting together the ends of wheel tyres in the specification of our former
Letters Patent N° 4812 dated the 18th April 1885.
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 :-
1. The manufacture and use of elastic driving bands for machinery, and bands
and straps for other purposes having a flat core (or cores) of metal or other
suitable material substantially as herein before described.
2. The improved driving band herein before described and represented in the
accompanying drawing.