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ASL Patents lately Enrolled. 
The oil in vacuo will be also preserved in 
amore uniform fluid state, and not so 
liable ta be glutinous as when exposed 
to atmespheric influence. Great care 
should be taken to have a good air-pump 
so as to cxhaust the air.as much’as pos- 
sible; for the more perrect the vacuum, 
the more correct will be the motion of 
the balance or pendulum. 
These inventions of time-keepers to 
go in vacuo, and to be wound up in va- 
cuo when required, without admitting 
the external air, will be of great advan- 
tage in being applied to ciocks or 
watches. The, form, or shape, and 
manner of constructing or making the 
apparatus of the instruments, or, ma- 
chines, or the materials or the substances 
they are made of, for containing time- 
keepers, clocks, or watches in vacuo, may 
be varied; also, the materials or the 
substances, or the form, or the shape 
and manner of constructing or making 
the instrument or machine for winding 
time-keepers, clocks, or watches when 
in vacuo, may be varied, provided that 
no external air is admitted.” 
— 
BIR. A. F. DE HEINE'S, (EAST SMITH- 
FIELD,) for Improvements on Printing 
and Stamping Presses. 
Instead of applying a screw for the 
power, Mr. Heine applies two sectors, 
or a sector and cylinders or a Sector and 
roller to inove one against the other by a 
single or compound lever. In the figures 
aitached.to this specification, we havea 
representation of the head of the piston, 
auder which is the platten or dye; in the 
centre of it isa hole, in which the spin- 
die moves by a lever. Another figure 
shews the moveable spindle with two 
opposite sections. The lever, whether 
single or compound, is fixed to the spin- 
dic, and by means of it the piston will be 
depressed as in the Comunon screw, with 
this difference, that as the descent of 
_ the piston decreases in velocity, ,the 
power must increase in the same pro- 
portion: in the screw the descent 1s 
equal, consequently the power 18 equal. 
Vhis motion may be reversed, by putting 
the opposite sectors at*the top of the 
piston; and the cylinder or roller on the 
moving spindle, will produce the same 
effect. In case the power is applied to 
a fly-press, it may be adapted to it by 
putting the part that acts instead of a 
~ ‘screw, through the hole in the head of 
the press, and fixing the fly-lever above 
the head of the press; then, by turning 
the spindle by the fly-lever, the sectors 
; 2 
[June }, 
will act in the manner of a screw with an 
increasing power. The sectors, and the 
part which comes in contact with them, 
must be made of iron, steel, brass, or 
any other hard substance; steel, or iron 
case-hardened, is best esteemed by the 
patentee. ‘ 
2 
MR. PETER WARBURTON’S (COLRIDG6E, 
STAFFORDSHIRE.) for a New Method 
of decorating Chine, &c. with Me- 
tals, which Method leaves the Metals, 
after being Burned, in ther Metallic 
Stute. 
In the application of this invention, 
the patentee-employs gold, silver, and 
platina, in three methods, First, he 
takes an impression from a plate of 
copper; the oils are rubbed with a boss 
into the figure engraved on the plate; 
the plate is then cleaned, to take off all 
the oil except what fills the part on which ~ 
the figure is engraved; a substance come 
posed of giue and isinglass, called a bat, 
is then applied to the plate, and the im- 
pression is taken off by means of a boss 
or roller. This impression is transferred 
from the bat to the earther-ware, china, 
or glass, and the preparations of gold, 
silver, &c. “such as are employed by ~ 
painters to produce metallic appear- 
ances, are laid on the earthen-ware, 
china, &c. with cotton-wool, or any 
other substance fit for the purpose :_it is 
afterwards cleaned off, and put into the 
oven or kiln, in the usual way. In the 
second method, when the figure is 
charged, and the plate cleaned, Potter’s 
printing-paper, previously sized, is ap- 
plied to the plate, and the impression 
taken off, and transferred from the pa- 
per to the earthen-ware, by means of 
flannel, and other fit substance. The 
metallic preparations are then applied, 
and the vessels put into the kiln. By 
the third method, Mr. Warburton mixes 
such preparations of gold, silver, and 
platina, as are made use of by painters 
to produce the metallic appearances 
called burnished gold and silver, and 
steel lustre, with the necessary oils, 
This mixture, in a liquid state, is then 
laid upon the figure, engraved on a plate 
of copper, or any substance on which an 
engraving can be made, and rubbed in 
with a dabber: the plate is afterwards 
cleaned with a piece of leather, called by 
printers a handcuff or a hand boss. Pot 
ter’s printing-paper, being previously 
sized in the usual way, is then applied 
to the plate, and an impression of the 
figure is taken off by means of a Potter’s 
printing 
