IMPROVEMENTS IN THE MANUFACTURE OF BOOTS AND SHOES WITH INDIA RUBBER SOLES
Year: 1883

page_text: LETTERS PATENT to Isidor Frankenburg of Salford in the County of
Lancaster Leather and India rubber Manufacturer for an Invention of
IMPROVEMENTS IN THE MANUFACTURE OF BOOTS AND SHOES WITH INDIA
RUBBER SOLES
"
PROVISIONAL SPECIFICATION left by the said Isidor Frankenburg at the
Office of the Commissioners of Patents on the 7th November 1883.
ISIDOR FRANKENBURG of Salford in the County of Lancaster Leather and
India-rubber Manufacturer. IMPROVEMENTS IN THE MANUFACTURE OF BOOTS
AND SHOES WITH INDIA-RUBBER SOLES,
My Invention relates more particularly to improvements in the manufacture of
lawn-tennis and other boots and shoes to which india-rubber soles are secured, the
object of my improvements being to fasten the india-rubber more securely to the
soles and thus increase the durability of the boots or shoes.
In performing my Invention I secure the india-rubber soles to the leather soles
by a solution of india-rubber or cement in the usual manner and then fasten the
two soles together by a rivet or other metal fastening..
Hitherto the india-rubber soles have been fastened to the leather soles by the
use of solution or cement alone or in conjunction with stitching. Neither of these
methods has proved satisfactory as the solution or cement is liable to become
soft and the stitches when new cut the india-rubber and become rotten and break
after a little wear: and the india-rubber soles come loose.
The india-rubber soles may be cast with a flange and the leather sole formed
with a wide welt for greater convenience in applying the metal fastenings.
When pyramidal or corrugated india-rubber soles are employed I cast or form
the soles preferably with blank spaces and when smooth or Hat soles are used
I may cast or form them with recesses for the heads of the rivets or metal
fastenings.
Metal clips or strips may be applied to the india-rubber and leather soles and
rivets passed through the metal clips or strips and the soles, and the india-rubber
soles securely fastened to the boots or shoes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Isidor Frankenburg in the Patent Office on the 3rd May
1884.
ISIDOR FRANKENBURO, of Salford in the County of Lancaster, Leather and
India-rubber Manufacturer * IMPROVEMENTS IN THE MANUFACTURE OF BOOTS
AND SHOES WITH INDIA-RUBBER SOLES
"
My invention relates more particularly to improvements in the manufacture of
lawn tennis and other boots and shoes to which india-rubber soles are secured,
the object of my improvements being to fasten the india-rubber more securely to
the soles and thus increase the durability of the boots or shoes.
In performing my Invention I secure the india-rubber soles to the leather soles
by a solution of india-rubber or cement in the usual manner and then fasten the
two soles together by rivets screws or other metal fastenings.
Hitherto the india-rubber soles have been fastened to the leather soles by the
use of solution or cement alone or in conjunction with stitching. Neither of these
methods has proved satisfactory as the solution or cement is liable to become
soft and the stitches, when new, cut the india-rubber and become rotten and break
after a little wear and the india rubber soles come loose.
The india-rubber sole may be cast with a flange and the leather sole formed
with a wide welt for greater convenience in applying the metal fastenings.
When pyramidal or corrugated india-rubber soles are employed I cast or form
the soles preferably with blank spaces and when smooth or Hat soles are used
I may cast or form them with recesses for the heads of the rivets screws or other
metal fastenings.
Metal clips or strips may be applied to the india-rubber and leather soles and
rivets or screws passed through the metal clips or strips and the soles, and the
india-rubber soles securely fastened to the boots or shoes
Having stated the nature of my Invention and described the manner of
performing the same
I declare that I claim
In lawn tennis shoes and other shoes and boots with india-rubber soles the use
and application of rivets screws or other metal fastenings substantially as and for
the purposes herein set forth..
In witness whereof I the said Isidor Frankenburg have hereunto set my hand
and seal this thirtieth day of April One thousand eight hundred and eighty four.
ISIDOR FRANKENBURG (LS.)