Liquid for Exterminating Grass or Similar Growths. Page: 1 of 1
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UNITED
STATES
PATENT OFFICE.
WILLIAM A. CHAPMAN, OF CLEBURNE, TEXAS.
LIQUID FOR EXTERMINATING GRASS OR SIMILAR GROWTHS.
SPECIFICATION forming part of LettersPatent No. 606,644, dated July 5, 1898.
Application filed April 18, 18 96. Serial No, 588,168. (No specimens.)To all whom it imay concern:
- Be it known that I,WILLIAM A. CHAPMAN,
a citizen of the United States, residing at Cle-
burne, in the county of Johnson and State of
5 Texas, have invented a new and useful Liquid
for Exterminating Grass or Similar Growths,
of which the following is a specification.
This invention relates to compounds for
destroying or exterminating grass, foliage,
ro and similar growths, and is especially de-
signed for killing such obnoxious vegetable
growths as Johnson and Bermuda grass.
With this object in view the invention con-
sists in the employment of white arsenic or
15 arsenious acid and nitrate of soda to form a
mixture or solution having the exterminating
qualities referred to, and in the preparation
of this solution one pound of white arsenic or
arsenious acid is introduced into six gallons
20 of water, and the whole is heated to a boiling
temperature until the arsenious acid is well
dissolved. The boiled mixture is then set in
a cool place until completely cooled, and one
pound of pulverized nitrate of soda is then in-
25 troduced into the mixture and thoroughly dis-
solved, thus completing the mixture or solu-
tion and rendering the same available for
immediate use.
The addition of nitrate of soda to the arse-
30 nious solution has the effect of preventing
crystallization of the white arsenious acid,
thus preserving the strength of the solution.
Any fertilizing effect of the nitrate of soda on
the grass or vegetable growth is counteracted
35 by the presence of the arsenious acid in thesolution. The arsenious acid has a specific
poisonous action on the grass or vegetable
growth, while the nitrate of soda in the pres-
ence of the arsenious solution causes deterio-
ration and decay of the growth it is desired 40
to destroy, the liquid penetrating to the roots
of the grass and vegetable growth, so as to
carry the poisonous elements through the
ground and to the roots to kill the plant.
The mixture is applied to the grass or other 45
growth with a spray or sprinkling-pot, and in
the event of sprouts appearing after one ap-
plication of the solution a second application
should be given to the growth for the purpose
of insuring extermination thereof; but it will 50
be of course understood that the mixture may
be applied to different growths in any con-
venient manner.
Having thus described the invention, what
is claimed, and desired to be secured by Let- 55
ters Patent, is-
The liquid herein described for destroying
grass and vegetable growths, consisting of an
arsenious solution having nitrate of soda dis-
solved therein to maintain the solubility of 6o
said arsenious acid, as and for the purposes
set forth.
In testimony that I claim the foregoing as
my own I have hereto affixed my signature in
the presence of two witnesses.
WILLIAM A. CHAPMAN.
Witnesses:
E. B. STAURCIPHER,
L. M. LAYTON.
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Chapman, William A. Liquid for Exterminating Grass or Similar Growths., patent, July 5, 1898; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth508673/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.