" 1804;] 
torted, for the purpofe of fecret correfpon- 
dence, by putting the pen in a particalar 
part of the pantograph or parallel ruler, 
which writing mult be re traced by a fi- 
milar inftrument to make it legible. Out- 
lines of land{capes may alfo be taken with 
Tome of the aforefiid machinery. ‘* I 
allo (adds the paten‘ee) fx a marking 
point to a fmall pantograph, in a cafe 
which may be carried in the pocket, to 
write memorandums on a flip ef paper 
ftretched on two rollers in the faid cafe, 
which flip of paper is moved along every 
time the line is written, fo that a perfon 
cai write memorandums in the dark, with- 
out any fear of writing two lines on one 
plice. The eflential principle inthe con- 
ftruétion of the tracer is, that it has the 
r. tation on its axis, and that the tracing 
edge be in.a line with that axis, fo that 
turning the tracer round fhall not alter the 
place of the tracing edg-. The drawings 
and def{cription of them, given in Mr. 
Hawkins’s {pecification, exhbit the inven- 
tion with perfpicuity,and will enable the in- 
geniousartilt tocomprehend the whole plan. 
r ee eae 
MR.WILLIAM LOOSEMORE’s (LONDON) 
for anew METHOD Of making and ma- 
nifaduring certain CLOTH for general 
USES and PURPOSES. 
Mr. Loofemore employs, in the fabrica- 
tion of cloth of different kinds, fur, 
which has never been fpun or woven into 
cloth or cloths : for this purpofe, the yarn 
or thread employed is made either from 
beaver’s, hare’s, or rabbit's, fur, fingly 
or mixed, according to the finenefs or other 
quality intended to be given to the cloth, 
or according to the price at which it is to 
be fold ; and cloths of other qualities and 
prices may, at the pleafure of the manu- 
facturer, be produced, by mixing or in- 
corporating any one or any two, or all 
three of the above named materials, in 
any propoitions at the pleafure of the ma- 
nufacturer, with wool or with any other 
materials that have been hitherto, or that 
are now, employed in making cloth for 
general ules; and this mixing or incorporat- 
ing of one or more furs with wool or other 
materials may be effected, either when the 
materials are in their raw (tate, or after 
they have been carded, roved, and fpun, by 
difpofing in,the procels of weaving threads 
or yarn {pun from. wool of any kind, hair 
of any kind, flax, hemp, cotton, filk, or 
any other material. db. ; 
In thefe and various other methods de- 
feribed in the, fpecification, beaver’s, 
hare’s, and rabbit?s fur may be made 
into cloth, either: fingly, or any two of 
» Monru_y Mac, Ne, 114. 
New Patents lately enrolled. 
$77 
them mixed with each other, or all three 
mixed and incorporated together ; in like 
manner, in the fame piece of cloth, any 
one, two, or three may be incorporated 
with any other kind of furs, wools, hair, 
hemp, flax, cotton, worfted, 8c. and any 
other articles that have been or may be 
employed in the manufaéture of cloth. 
What Mr. Loofeniore lays claim to as his 
peculiar invention is the employment of 
fur or furs in the fabrication of cloths, 
either alone, or mixed with o:her materials. 
The introduction of fur into cloth gives 
it a degree of flexibility, foftnefs, lightnefs, 
warmth, and beauty, which cannot be at- 
tained in the ufual methods of manufac- 
ture, in which fur is not employed. And 
cloths made and manufactured by this 
method may be dyed of any colour, in the 
ufual manner, either by dying the mate- 
rials when in the raw ftate, or by dying 
the yarn or thread, or by dying the pieces 
of cloth after they fhall have been woven. 
ARCHIBALD EARL of DUNDONALD’S, for 
METHODS of treating or preparing 
HEMP and FLAX,and SUBSTITUTLESfi? 
HEMP and FLAX, fo as materially to aid 
the OPERATION of the TOOLS called 
HACKLES, inthe DIVISION of the FIBRE. 
The noble Earl's invention depends on 
the principle of removing from flax, hemp, 
&c. the bark, and a confiderable propor- 
ticn of the mucilage or extraétive matter, 
before they have been drefled on the 
hackles. The hemp or flax to be operat- 
ed upon is to be fteeyed in water or boiled, 
as circuinftances may require. It is then 
to be beateh, bruifed, crufhed, rolled, or 
afted upon by ftampers, rollers, or by any 
other mechanical means, fo as to promote 
the folution and difcharge of the mucilage 
or extractive matter, and to loofen the ad- 
hefion of the bark to the fibre. ‘This prc- 
ce{s is to be done with or without a run of 
water, while the fubftance is beating, and 
the water employed may either be cold, 
warm, or boiling hot, with or without 
foap or alkaline falts. 
~ The difference between Lord Dundo- 
nald’s and the ufual procets, confifts in 
employing water to aid the folution of the 
mucilage, and thus to diminifh the adhe- 
ficn of the bark to the fibre, whereas the 
hemp or flax has always been beaten in-a 
dry ftate. When the wet-beating is fi- 
nifhed, the fubftance isto be fubmitted to 
the operation of dry-beating, as prepara- 
tory to hackling or dreffing. The pro- 
cels'of pafling hemp or flax through or. 
over-rollers, or by treating them by a ma- 
chine fimilarly confiruéted to that of a 
3D : mangle, 
