Improved Machine for Engraving Glass, Zinc, or other Metals.
Year: 1887

page_text: Date of Application, 17th Sept., 1897
Complete Left, 7th June, 1888
Complete Accepted, 13th July, 1888
PROVISIONAL SPECIFICATION.
Improved Machine for Engraving Glass, Zinc, or other Metals.
I LORENTZ ALBERT GROTH of 5 Crosby Hall Chambers in the city of London as
a communication from abroad by Charles Monchablon, of No. 30 rue Capernic, in the
city of Paris, France, Gentleman do hereby declare the nature of this invention to be
as follows
The object of this Invention is to make impressions or engraving glass, zinc or
other metals.
The machine consists of two principal parts, viz. 1°) a drum, brought into a rela-
tively slow rotation, by means of an axel and belting, and upon which the articles of
glass, zinc or other metals to be engraved are fastend; and 2°) a cylinder provided
with paddles and given a very rapid rotation by means of an axel and belting. This
paddle-cylinder throws the fine powder of glass, sand or emery, from a receptacle
situated above the same, against the surfaces of the articles on the drum and thereby
engraving them.
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page_text: COMPLETE SPECIFICATION.
Improved Machine for Engraving Glass, Zinc, or other Metals.
I LORENTZ ALBERT GROTH of 5 Crosby Hall Chambers in the city of London as a
communication from abroad by Charles Monchablon of No. 30 rne Capernic in the
city of Paris, France Gentleman 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 :-
-
*
The object of this invention is to make impressions or engraving glass, zinc or other
metals. The machine consists of two principal paris (viz.) (1) a drum brought into a
relatively slow rotation by means of a axcel and belting and upon which the articles
of glass, zinc or other metals to be engraved are fastened and (2) a cylinder provided
with paddles and given a very rapid rotation by means of an axel and belting. This
paddle cylinder throws a fine powder of glass, sand or emery from a receptacle situated
above the same, against the surfaces of the articles on the drum and thereby engraving
them.
Fig. 1 shews the machine applied for sheets of glass. A is the recervoir containing
the pulverized material. B is the axle provided with paddles given a great speed of
rotation and throwing the pulverized powder against the face of the sheets of glass;
the transmission of the force is obtained by means of the pulleys C. D. E. F. G. and
belting. His the receptacle on which the sheets of glass or zinc to be manipulated
are fastened.
Fig. II represents the machine applicable to large sheets of zinc and is entirely
alike, the one described in Fig. 1, but with the difference that the receptacle is
substituted by a polygonal receptacle K and in Fig. III by a cylinder.
Having now 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 :
لی
The machine for engraving glass, zine or other metals consisting of a drum on
which the material to be engraved is placed and a cylinder or axle provided with
paddles by means of which the fine powdered glass and emery is thrown with great
force upon the surfaces of the materials placed on the drum, principally as herein
described and shown by the accompanying drawings.
Dated this 7th June 1888
LORENTZ ALBERT GROTH.