An Improved Apparatus for Sharpening and Polishing Knives, Brass, Copper, or Silver, and other Metals and Glass.
Year: 1894

page_text: Date of Application, 3rd Dec., 1894
Complete Specification Left, 3rd Sept., 1895-Accepted, 3rd Dec., 1895
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Sharpening and Polishing Knives,
Brass, Copper, or Silver, and other Metals and Glass.
WILLIAM KIERSCH of No. 3 Blackhorse Yard Grays Inn Road in the County
of Middlesex Manufacturer of Kitchen Woodware do hereby declare the nature of
this invention to be as follows:-
A new method of pasting pieces of leather on a piece of wood, card board or
other such substance so as to leave a opening between the pieces and fill them up
with specially prepared artificial stone made of plaster of Paris, ground emery
pumicestone bees wax and shellac.
Consists of an artificial block of stone made of plaster of Paris, ground emery,
pumice stone, bees wax and shellac which I take and rub over before polishing the
metal.
2nd do of Denahan 1004
WILLIAM KIERSCH,
3 Blackhorse Yard, Gray's Inn Road.
An Improved Apparatus for Sharpening and Polishing Knives,
Brass, Copper, or Silver, and other Metals and Glass.
WILLIAM KIERSCH of No. 3 Blackhorse Yard, Grays Inn Road in the
County of London, Manufacturer of Kitchen Woodware 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 :-
In carrying out my invention I take a piece of board then I make a paste of
glue and whiting and paint the surface of this board and let it dry. Then I take
a second piece of board and put on it a paste made of boiled flour and glue and
place strips of leather on this board and let it soak for a few minutes, then I take
the strips of leather off and past them on the first board as shewn on Fig. I of
drawing and then let it dry. I then take a knife and cut the surface straight so as
to make it straight and even, then I fill in the irregular spaces with artificial stone
as in item described below, so as to make a flat surface and let it dry. I then take
a block of artificial stone made of plaster of Paris, ground emery, pummice stone,
bees wax and shellac, made of about nine parts of plaster of Paris about two parts
of ground emery and about two parts of ground pummice stone about one part of
bees wax and about four parts of shellac and rub it over the board to finish it off.
In rubbing the block of stone over the board the friction makes the powder required
for polishing all such straight articles as knives and brass copper or silver and
other metals and glass.
And in order that my invention may be more particularly described and
ascertained reference is hereby made to the accompanying drawings in which
similar letters refer to corresponding parts.
Fig. I represents a portion of a knife board which is composed of irregular
strips or pieces of leather marked B set in specially prepared cement marked A.

page_text: Fig. II a section of above figure--leather marked with letter C-cement with
letter D. The letter E represents the board it is mounted on.
Fig. 111 shows section of artificial stone marked A. mounted on wood block B.
Fig. IV shows the surface of the artificial stone block which is rubbed on the
knife board previous to polishing the articles required.
In polishing all uneven articles I take a duplicate of Fig. IV and rub them on
to one another, this triction gives me the powder required (with the use of a piece
of wash leather) to polish any uneven articles such as knives, brass, copper or
silver and other metals and glass.
Having now more particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1st. The board constructed as described with reference to Figs. I and II.
2nd. I claim the method of making the artificial stone as described above and
with reference to Figs. III and IV.
3rd. I claim the method of polishing all uneven articles by rubbing together
two blocks of artificial stone claimed in Claim II which gives me the powder
required for polishing all uneven articles such as knives brass copper or silver and
other metals and glass.
Dated this 3rd day of September 1895.
WILLIAM KIERSCH.