150 
sons assigned, is in most cases prefer- 
able. A shoe made upon this principle 
will not only give pressure to the frog, 
but very generally prevent contracted 
hoofs, flat feet, corns, sand cracks, 
thrushes, cankers, and guittors, and is 
the best shoe to be eat in the cure of 
these maladies, and also to prevent 
cutting. 
In a word, the invention consists in 
firmly and permanently fixing, by wel- 
ding, screwing, or rivetting, the longi- 
tudinal frog-bar to the centre of the 
shoe.—Inrolled, April 15, 1820. 
Yo WILLIAM BROCKEDON, of Poland- 
street, for his Invention of certain 
Improvements in Wire-Drawing. 
Instead of the usual mode of drawing 
wire through holes made in plates of 
iron, or steel, other metals, or composi- 
tions of metals; Mr. B. makes or causes 
to be made, by drilling or polishing, in 
the usual methods employed by lapida- 
ries, &c. cylindrical or conical holes,with 
their extremities rounded off, through 
diamonds, sapphires, rubies, chrysolites, 
or any other fit and proper hard gems 
or stones; which he mounts or sets in 
blocks, frames, or plates of metal, or 
other fit substances, proper for fixing or 
securing them for use; and the metals, 
or composition of metals to be made 
into wire, are to be drawn through 
these holes, in the usual manner of wire- 
drawing. The wire may be drawn 
through either end of the hole; but he 
prefers entering it at the smallest end, 
and drawing from the larger end of the 
holes ; because the gems or stones will 
present, in this direction, a firmer re- 
sistance against the action of the wire 
in drawing.—Inrolled, Sept. 20, 1821. 
To Mason ROHDE, of Lemun-street, 
Goodman’ s-fields, Sugar-refiner ; for 
separating or extracting the Molasses 
or Syrup from Muscovado or other 
Sugar. 
-It being ascertained that a consider- 
able proportion of the discoloured mat- 
ter and other substances which consti- 
tute molasses or syrup, is formed on the 
surface of the crystal of the purer sugar ; 
the method which the patentee employs 
for separating or extracting the molas- 
ses or syrup from such crystals, is to 
absorb the molasses or syrup by using 
linen, or some other substance of ab- 
sorbing quality, assisted by mechani- 
cal or manual motion and fiiction in 
manner following; that is to say: he 
breaks any lumps that may be in the 
sugar, so as to admit of its passing 
New Patents und Mechanical Inventions. 
through a sieve of sufficient texture or 
size without breaking the grains or 
crystals; he then spreads the sugar so 
reduced in thin layers on linen, or some 
other substance of absorbing quality, 
and having folded it, places it in bags 
or other packages, and applies manual 
or other mechanical power to put it in 
motion, so as to afford the friction ue- - 
cessary to separate the molasses or syrup 
from the sugar. By these means the 
molasses or syrup is absorbed by the 
linen or other absorbing substance, and 
the purer crystals remain on the sur- 
face, aud are separated by brushing, 
shaking, or scraping them eff. The 
molasses or syrup is afterwards ex- 
tracted from the linen or other absorb- 
ing substance, by means of water or 
steam, or he employs any means by 
which an absorbing substance comes in 
contact with the sugar, so as to allow 
of its absorbing the molasses or syrup, 
whilst it leaves the crystals on its sur- 
face.—Inrolled, April 15, 1820. 
To GEORGE FREDERICK HAGNER, of 
the Adelphi, for certain Improve- 
ments inthe Art of making White 
Lead, and Verdigris. 
These improvements consist in the 
use of a machine or machines for gra- 
nulating lead ; and which said machine 
may be a revolving cylinder, or other 
proper vessel, turning upon axles, and 
having an opening at one end of it, in- 
to which melted lead may be poured : 
and, after being granulated, by. the 
rotatory action of the machine, may be 
readily discharged, by causing the ves- 
sel to ke inverted, or the opening at 
the end of it to be turned downwards ; 
this may be effected in various ways, 
not necessary to be particularly ee 
scribed ; and the lead, so granulated, 
may be afterwards used with advantage 
in the manufacture of white lead. 
In the art of making verdigris, the 
improvement consists in the use of a 
_machine, or machines, which may bea 
revolving vessel or vessels, turning up- 
on axles; or other proper vessels ca- 
pable of receiving au alternating motion, 
or of being agitated ; as also of fixed 
vessels, in which agitators may be put 
into motion. Into any, or either, of 
these vessels, he puts copper in a state 
of division, the more minute the bet- 
ter: and he adds to the eopper, pyrolig- 
neous acid, vinegar, or other. acetic or 
acetous acids ; and either mixed with 
water, or not, so as that the copper shall 
only be partially covered by the ome 
an 
[March 1, 
