IMPROVEMENTS IN GLASS TARGETS
Year: 1878

page_text: LETTERS PATENT to Herbert John Haddan, of the Firm of Herbert and
Company, Solicitors of Patents, of 67, Strand, in the City of Westminster,
Civil Engineer, for the Invention of "IMPROVEMENTS IN GLASS TARGETS."
A communication from abroad by Charles Albert Tatum, of New York City;
United States of America.
Sealed the 4th March 1879, and dated the 10th September 1878.
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 10th September 1878.
"
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. IMPROVE-
MENTS IN GLASS TARGETS." A communication from abroad by Charles Albert
Tatum, of New York City, United States of America.
The Invention consists in roughening and coating with non-light-reflecting
substances the surface of. hollow glass balls to be used in traps, or otherwise, as
targets to be shot at by shot guns, rifles, and such like, and so give a better object
to aim at than the present polished surfaced light-reflecting balls in use.
The balls can be made as at present, and roughened by dipping them into dull
pulverised materials mixed with glycerine or a non-lustrous adhesive material.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Herbert John Haddan in the Great Seal Patent Office on the 6th
March 1879.
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. "IMPROVE
MENTS IN GLASS TARGETS." A communication from abroad by Charles Albert
Tatum, of New York City, United States of America.
The Invention consists in roughening and coating with non-light-reflecting
substances the surface of hollow glass balls to be used in traps, or otherwise, as
targets to be shot at by shot guns, rifles, and such like, and so give a better object
to aim at than the present polished surfaced light-reflecting balls in use.
The balls can be made as at present and roughened in any suitable way, but
most advantageously by dipping them into a bath of a glutinous or otherwise non-
lustrous substance, asphaltic or otherwise, and after this expose this expose them
to be dusted or covered with suitable organic or mineral substances, granulated or
pulverised, coarse or fine, as may be desired.
When the glutinous substance is dried by exposure to the air or to artificial
heat, it will be found that the whole surface of the ball is covered with a rough
coating on which the shots take much better effect than on the smooth glass, and
which prevents the glaring effect of the glass.
The same object may be obtained by covering the glass before being moulded
with sand or other suitable mineral substances, either by dusting it on or by rolling
the molten glass in sand while it is hot enough to make the sand adhere to the
surface of the glass.
In the accompanying Drawing, where Fig. 1 represents a side view of the
improved sherical glass target, and. Fig. 2 a sectional view of the same, A is the
glass ball, covered with the coating B.
CLAIM.
Roughening the outer surface of glass targets balls substantially as described, and
for the purpose set forth.
In witness whereof, I, the said Herbert John Haddan, have hereunto set my
hand and seal, this Sixth day of March, A.D. 1879.
H
THATDAN
HADDAN
N. (..)