Improvements in and relating to the Manufacture of Wooden Heels for Boots and Shoes.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to the Manufacture of Wooden Heels
for Boots and Shoes.
I, LEOPOLD SCHWARZHUBER, of Purkerdorf, near Vienna, in the Empire of
Austria, Engineer, do hereby declare the nature of this invention to be as
follows.
-
This invention relates to wooden heels for boots and shoes, having the advantage,
as compared with the usual leather heels, of being cheaper, simpler, lighter, more
elastic and more durable.
These wooden heels consist, like the leather heels, of small separate lifts, glued
together, but made from thin stups of wood or veneer to which by a special
preliminary preparation, the colour and toughness of heel-leather is given, and
which are also waterproof.
The process for manufacturing these wooden heels is as as follows
Light tough wood, preferably poplar or willow, is cut into thin strips or veneets
which are boiled under pressure in a weak solution of resin-soap.
This resin-soap solution is obtained by boiling, for instance, colophony with
natiou-lye, water being added, until a dark brown liquid, of watery consistence, and
glutinous 18 produced.
This solution is diluted approximately in the proportion of 10 parts by volume
of the solution to 90 parts by volume of water, and the resulting liquid is placed in
a closed boiler with as many pieces of veneer plates as space will permit.
The contents are then boiled from 4 to 5 hours under a pressure of 4 to 5
atmospheres, the boiler being allowed to cool, the sheets are removed from it,
and have the dark colour of leather and become extremely tough, they are then
dried in the air in dıying rooms.
The said sheets are then stamped into pieces of suitable shape and dimension for
heels, a sufficient quantity of the same being afterwards placed together to form
the thickness of the heel, (use being made of an agglutinant such as glue or gluten,
and of nails driven through them to retain the same together, the agglutinant
having dried), they are placed in suitable moulds and subjected to considerable
pressure, finally they are shaped by means of a cutting-machine.
The heels made in this manner aro quite similar in appearance to the heels made
of leather and possess the abovementioned advantages.
Dk Dambo 1904

page_text: Improvements in and relating to the Manufacture of Wooden Heels
for Boots and Shoes.
I, LEOPOLD SCHWARZHUBER, of Puikerdorf, near Vienna, in the Empite of
Austria, Engineer, 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 wooden heels for boots and shoes, having the advantage
as compared with the usual leather heels, of being cheaper, simpler, lighter, more
elastic and more durable.
These wooden heels consist, like the leather heels, of small separate lifts, glued
together, but made from thin strips of wood or veneer to which by a special
preliminary preparation, the colour and Loughness of heel-leather is given, and
which are also water proof.
The process for manufacturing these wooden heels is as follows.
Light, tough wood, preferably poplar or willow, is cut into thin strips or veneers
which are boiled under pressure in a weak solution of resin-soap
This resin-soap solution is obtained by boiling, for instance, colophony with
soda-lyc, water being added, until a dark brown liquid, of watery consistence, and
glutinous is produced.
This solution is diluted approximately in the proportion of 10 parts by volume
of the solution to 90 parts by volume of water, and the resulting liquid is placed in
a closed boiler with as many pieces of vencer plates as space will permit
The contents are then boiled from 4 to 5 hours under a pressure of 4 to 5
atmospheres, the boiler being allowed to cool, the sheets are removed from it and
have the dark colour of leather and become extremely tough they are then dried
in the au m drying rooms.
The said sheets are then stamped into pieces of suutable shape and dimension for
heels, a sufficient quantity of the same being afterwards placed together to form
the thickness of the heel, (use being made of an agglutinant such as glue or gluten,
aud of nails driven through them to retain the same together,) the agglutinant having
died, they are placed in suitable moulds and subjected to considerable pressure,
finally they are shaped by means of a cutting-machine
The heels made in this manner are quite similar in appearance to the heels made
of leather and possess the above mentioned advantages
Having now particularly described and ascertained the nature of my said
invention and in what maune the same is to be performed, I declare that what
I claim is
let. Heels made of small plates of wood veneer, glued one to the other.
2nd. For the purpose of manufacturing the wooden heels descubed in the first
clan, plates of wood boiled under pressure in a solution of resin-soap, in order to
give them the colour and toughness of leather.
Dated this 3rd day of Santam 1805
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C, Agents for the Applicant.