Improvements in Driving Bands or Belts.
Year: 1889

page_text: Date of Application, 14th Mar., 1889
Complete Specification Left, 14th Dec., 1889-Accepted, 25th Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in Driving Bands or Belts.
A communication from OSCAR SOHMIDT, of 10, Strassburger Strasse, Berlin, in the
Empire of Germany.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., do hereby declare the nature of this invention to be as follows:-
The present invention refers to improvements in bands or belts of woven fabric,
with or without a covering of elastic material. All bands or belts made of wovon
fabric up to the present time have the disadvantage that they stretch more or loss in
use and the object of the present invention is to avoid this stretching.
For this purpose the band or belt is provided with a series of twisted cords or
the like of any suitable material which greatly increase the strength of the bolt and
practically prevent any stretching thereof in use.
These cords which may be of flax, hemp, jute or any other suitable fibres are
placed in straight lines in the longitudinal direction of the belt and may be either
covered with one or more layers of the textile fabric or the cords may form the
chain of the fabric itself and the weft may consist of any suitable twisted thread or
the two forms may be so combined that the fabric with the cords as chain may be
covered with one or more layers of fabric. The belt may in either form be covered
in the usual manner with india-rubber or the like.
Dated this 14th day of March 1889.
W. P. THOMPSON & BOULT,
A grants
COMPLETE SPECIFICATION.
Improvements in Driving Bands or Belts.
A communication from OSCAR SCHMIDT, of formerly 10, Strassburger Strasse, now of
48, Weissenburger Strasse, Berlin, in the Empire of Germany.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesox,
M.L.M.E., 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 :-
The present invention refers to improvements in bands or belts or straps of woven
fabric with or without a covering of elastic material. All bands or belts made of
woven fabric up to the present time have the disadvantage that they stretch more or
less in use and the object of the present invention is to avoid the stretching.
For this purpose the band or belt or strap is provided with a series of twisted
cords or the like which greatly increase the strength of the belt and practically
prevent any stretching thereof when in use.
These cords which may be of flax, hemp, jute or any other suitable fibres are placed
in straight lines in the longitudinal direction of the belt and may be either covered
with one or more layers of any suitable textile fabric or the cords themselves may
form the chain of the fabric itself and the weft may consist of any suitable twisted or
not twisted thread or the two forms may be so combined that the fabric with the cords
as chain may be covered with one or more layers of fabric. Instead of arranging
the cords at so small a distance apart that only the wefts may be put between them,

page_text: the distance of the cords may be sufficient to accommodate between them, longi-
tudinal cords of a smaller diameter for the purpose of making the caoutchouc adhere
better to the web. If these smaller longitudinal cords he employed and the main
longitudinal cords put at such distances apart that the welts are nearly straight the
smaller longitudinal cords will form zigzag lines and thus provide, still another kind
of driving belt. The belt in either form may be covered in the usual manner with
india-rubber or the like.
In the accompanying drawings are illustrated various forms of driving belts or
straps constructed according to this invention.
Fig. 1 shows in section and fig. 2 in a plan partly in section a driving hand on
which a are the longitudinal twisted cords arranged in straight lines and 6 the
layers of the textile fabric surrounding the twisted cords a while the covering is
marked c.
Fig. 3 shows in section and Fig. 4 in plan partly in section the helt, band or strap
in which the cords a form the chain of the textile fabric the weft of which
consists of any suitable twisted or not twisted thread 6. The covering here is also
marked c.
Fig. 5 shows in section and Fig. 6 in plan partly in section a modification in which
the two previously described forms of the driving band, belt or strap are combined,
so that the cords a arranged longitudinally and in straight lines form the chain of a
textile fabric the weft of which is formed by any suitable twisted or not twisted
thread band this fabric with the twisted cord or chain is furthermore covered with
one or more layers of any suitable textile fabric b.
Fig. 7 shows a section and Fig. 8 a plan partly in section of a modification in
which between every two cords a is arranged a cord d of a smaller diameter
forming also a chain for the purpose of causing the covering c to adhere better to
the web.
Fig. 9 shows in section Fig. 10 in plan and fig. 11 in longitudinal section on the
line of Fig. 9 a modification of the belt in which the cords d shown in a straight
line in figs. 7 and 8 are here in a zigzag line while the weft bis straighter than in
figs. 7 and 8 as the cords a are here arranged at a smaller distance apart. This
-belt has been arranged without any covering.
In all these forms the stretching of the driving band, belt or strap is avoided and
its strength increased.
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. A driving-band, belt or strap provided with a layer of twisted cords of flax,
hemp or other suitable fibre arranged longitudinally in straight lines which either
may be covered with layers of any suitable fabric or which forms the longitudinally
straight chain or warp of a fabric the weft of which consists of twisted threads of
any suitable material the latter form also being covered with layers of suitable fabric
if desired substantially as and for the purpose specified.
2. In a driving-band, belt or strap of textile fabric or elastic material a layer of
twisted cords of flax, hemp or other suitable fibre arranged longitudinally in
straight lines and covered with any suitable textile fabric substantially as and for the
purpose specified.
3. The employment for driving bands, belts or straps of a textile fabric the chain
or warp of which consists of longitudinally straight twisted cords of hemp, flax or
other suitable fibre and the weft of which consists of twisted threads of any
suitable material this fabric being covered with layers of suitable textile fabric or
elastic material if desired substantially as and for the purpose specified.
4. The employment for driving bands, belts or straps of a textile fabric the chain
or warp of which consists of longitudinally straight cords for taking the driving

page_text: strain and a cord of smaller diameter arranged either in a straight or zigzag line
between every two main cords, all these cords being twisted and consisting of hemp,
flax or other suitable fibre and the weft of which consists of twisted threads of any
suitable material this fabric being covered with layers of suitable elastic material
5 if desired substantially as and for the purpose specified.
Dated this 14th day of Donamba 1980
W. P. THOMPSON & BOULT,
Agents for the Applicant.