318 
Various Notices^ 
« To Pd^der Manufacturers.--^l!h& subscriber has obtained 
from the United States a patent right, for three very simple and 
important improvements in the manufacture of gunpowder, which 
do most truly diminish more than one half the risk, the waste, and 
the expence of the manufacture. They consist in boiling the in- 
gredients by steam, in incorporating them without the objection 
of barrels, the danger of potinders, or the tediousness of stones 
running on their edge : and in the granulations effected by a iiim- 
pie machine turning by hand or water, and graining more in a 
day than twenty hands, losing not a particle of dust, and making' 
not half the ordinary quantity for re-manufacture. The advanta- 
ges of this mode have been so great, that he had to discharge half 
of his workmen from his manufactory, as will be readily account- 
ed for by those accustomed to the tediousness and loss from grain- 
ing, particularly the press powder by the sifter and rollers. 
The terms on which he will dispose of his improvements are 
as follows ; 
For the privilege of using the steam and his wheel for incor- 
poration, which he will supply, and have put up in any part of the ' 
country at his own expence, within 60 days from the arrival of his 
workmen, one thousand dollars for each hundred pounds of pow- 
der they are able to manufacture daily. None less than three 
hundred pounds will be undertaken. 
For his granulating machines, also made and put up at his own 
cxpence, he will charge and must be secured in the payment of 
so much as the manufacturer shall save, by discontinuing the ope- 
rations of the sifter for the first year, one half for the second, and 
one fourth for the third, and the same for the fourth years, to be 
paid at the expiration of the years, after which no further charge. 
This amount is to be ascertained on the fairest principles in the 
beginning, and nothing is to be paid if the machine do not fully 
answer the object. It is of so simple a nature, so impossible te 
get out of order, or under any circumstances to be a source of dan- 
ger, that should any person wish it he will for the first year have 
one of his hands to grain, and will guarantee all losses that it shall 
from its operations produce, no one, however, will require this, who 
will observe the perfect safety and simplicity of the contrivance. 
The established manufacturers wishing only the granulating 
machine, will state (letters postage paid) the quantity of powder 
they daily make, and immediately after they shall have one of cbiv 
responding capacity put in operation free of all expences, but the: 
allowance for saving, to be paid for as above.” 
Cyeorgetown, December 30. THOMAS EWELL 
