IMPROVEMENTS IN DRIVING BANDS FOR MACHINERY
Year: 1869

page_text: PROVISIONAL SPECIFICATION left by John George Fordham Blow
and George Walter Blow at the Office of the Commissioners of
Patents, with their Petition, on the 29th April 1869.
We, JOHN GEORGE FORDHAM BLOW and GEORGE WALTER BLOW,
both of No. 23, Commercial Street, in the County of Middlesex, do.
hereby declare the nature of the said Invention for "IMPROVEMENTS
IN DRIVING BANDS FOR MACHINERY," to be as follows:-
This Invention has for its object improvements in driving bands for
machinery.
In constructing driving bands we employ thin and flexible steel bands
on which we thread small pieces of leather of a width equal to the
thickness of the band which it is desired to make. The strips of leather
run transversely across the driving band, so that the length of the strip
corresponds with the width of the band. The strips of leather have slits
cut in them to receive the steel bands which they serve to connect the
one to the other. It will thus be seen that the steel bands take the
whole longitudinal strain which is applied to the band, and the cut edges
of the leather strips furnish the friction holding surfaces. The steel
bands may be rivetted up, brazed, or otherwise joined at their ends. In

page_text: order to give increased flexibility to the band we introduce vulcanized
india-rubber strips at intervals in place of leather strips. We employ a
greater or less number of such strips according as more or less flexibility
be desired. Gutta percha and other materials may be substituted for the
leather, and other flat metal bands may be substituted for steel, but we 5
do not believe advantageously.

page_text: PROVISIONAL SPECIFICATION left by John George Fordham Blow
and George Walter Blow at the Office of the Commissioners of
Patents, with their Petition, on the 29th April 1869..
We, JOHN GEORGE FORDHAM BLOW and GEORGE WALTER BLOW,
both of No. 23, Commercial Street, in the County of Middlesex, do."
hereby declare the nature of the said Invention for "IMPROVEMENTS,
IN DRIVING BANDS FOR MACHINERY," to be as follows:-
This Invention has for its object improvements in driving bands for
machinery.
In constructing driving bands we employ thin and flexible steel bands
on which we thread small pieces of leather of a width equal to the
thickness of the band which it is desired to make. The strips of leather
run transversely across the driving band, so that the length of the strip
corresponds with the width of the band. The strips of leather have slits
cut in them to receive the steel bands which they serve to connect the
one to the other. It will thus be seen that the steel bands take the
whole longitudinal strain which is applied to the band, and the cut edges
of the leather strips furnish the friction holding surfaces. The steel
bands may be rivetted up, brazed, or otherwise joined at their ends. In

page_text: order to give increased flexibility to the band we introduce vulcanized
india-rubber strips at intervals in place of leather strips. We employ a
greater or less number of such strips according as more or less flexibility
be desired. Gutta percha and other materials may be substituted for the
leather, and other flat metal bands may be substituted for steel, but we
do not believe advantageously.