Improvements in the Manufacture of Material suitable for use in Lieu of Wood or Leather in the Making of Travelling Trunks.
Year: 1890

page_text: Date of Application, 10th Mar., 1890.
Complete Specification Left, 18th Mar., 1890-Accepted, 5th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Material suitable for use in
Lieu of Wood or Leather in the Making of Travelling Trunks.
I, KARL VOLLMER, of Baden-Baden, in the Empire of Germany, Saddler, do
hereby declare the nature of this invention to be as follows:-
:-
My invention relates to the manufacture from felt and canvas of a material, which
may be used in lieu of wood, leather, paste board and the like for making travelling
trunks. The want has long been felt of a substance suitable for the manufacture
of light, solid and cheap travelling trunks and my new material is well adapted
for this purpose.
It is manufactured as follows :—
Felt stuff of a good quality is impregnated in a bath consisting of 50 parts of
glue, 10 parts of turpentine balsam, 10 parts of vinegar and 40 parts of water.
After the stuff has been completely penetrated by the solution, linen cloth or
canvas is applied to both sides of the same and the whole is submitted to a strong
hydraulic pressure. After the pressure the material is dried in suitable chambers
at a temperature of from 30 to 35° C. and then coated with colour or varnish, so
that the material becomes completely impervious to moisture.
Travelling trunks made from this material will be extremely light their weight
not exceeding that of boxes manufactured from paste board and canvas, whilst
their resistance is higher than that of leather and wood, as the felt stuff by the im-
pregnation is increased in strength without being deprived of its elasticity.
Dated this 10th day of March 1890.
K. VOLLMER.
Per L. W.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Material suitable for use in
Lieu of Wood or Leather in the Making of Travelling Trunks.
I, KARL VOLLMER, of Baden-Baden, in the Empire of Germany, Saddler, 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:-
My invention relates to the manufacture from felt and canvas of a material which
may be used in lieu of wood, leather, paste board and the like for making travelling
trunks. The want has long been felt of a substance suitable for the manufacture of
light, solid and cheap travelling trunks and my now material is well adapted for this
purpose.
It is manufactured as follows:-
Felt stuff of a good quality is impregnated in a bath consisting of 50 parts of glue,
10 parts of turpentine, 10 parts of vinegar and 40 parts of water. After the felt
sheet has been completely penetrated by the solution, linen cloth or canvas is applied
to both sides of the same and the whole is submitted to a strong hydraulic pressure.
After the pressure the material is dried in suitable chambers at a temperature of
from 30 to 35° C., and then coated with colour or varnish, so that the material
becomes completely impervious to moisture.
Travelling trunks made from this material will be extremely light their weight not
exceeding that of boxes manufactured from paste board and canvas, whilst their re-
sistance is higher than that of leather and wood, as the felt stuff by the impregnation
is increased in strength without being deprived of its elasticity.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
claim is :-
:-
I
1. The manufacture of a material suitable for use in lieu of wood or leather in the
manufacture of travelling trunks, by impregnating a felt sheet with glue, turpentine;
and vinegar, covering the said felt sheet with canvas or linen cloth, pressing the
compound sheet by hydraulic pressure and coating with colour or varnish, whereby a
light, solid and elastic material is obtained:
2. The hereinabove described material suitable for use in the manufacture of
travelling trunks.
K. VOLLMER.
Per L. W.