2&8 
granted me, on mill fpinning machinery, 
coniiiit principally in an alteration m_ the 
confiruction and pofition of the {pindles. 
By the firit method the dpindle is in fe- 
veral re{pects imilai* to the common 
ipindle, but it diilers in one refpect, viz. 
that the bobbing does not reit on. or 
touch the copping rail, their contact be- 
ing prevented by a ring made to hei and 
to rife and fall or traverfe on the {pin- 
die, m,which there is a groove cut length+ 
ways ; and in this groove a {erew or pin 
is made to fit, which paties through the 
ring, fo that when-the fpindic is made 
tv turn round, the ring muft turn round 
with it. ‘The ring, or as it is teclmically 
denominated the worl, is moved up and 
down on the ipindie by a ratl communi- 
cating with the heart or other motion. 
This rail fits inte a groove, cut or turned 
m the brafs or other worl, on which re- 
vulving worl, and not on the copping 
rail, the bottom of the bebbin relis. 
The uptake of the bobbin is regulated by 
applying to it a fpring, band, weight, 
lever, or any other fubitance cap: able of 
retarding its revolution.” The noble Earl 
has defcribed three other fpindles, which 
we fhall omit, as he obferves that it 1s 
extremely d ficult to défcribe all the 
different varieties of {pindles, whether 
made in ene or two pieces ; and he adds, 
that the prominent features of his im- 
provements are the making the fpindle 
carry round the bobbin without the ac- 
tion, of the yarn or thread, and that whe- 
ther the fpindles be in one or more 
pieces; the making the haft or warf at 
times to fhift or remove from off the 
f{pindle ; 
the bobbin carried round by the agency 
of the fpindle, fo as to regulate the up- 
take of the yarn on the bobbin, by a 
power connected with the motion of the 
ipindle, or, in other words, giving the 
bobbin the motion neceilary to occafion 
the uptake of the yarn, w hich is contrary 
to the prineiples on which the iraproved 
fpindle is conitrucied, im which the ob- 
ject is to retard the revolutions of the 
bobbin, and not to give it motion. The 
patent fpindles are adapted for making 
covings, for throwing and twiiting threa d 
or yarn of cotton, filk, wool, flax, and 
hemp ; hikewife for twifting twine, fith- 
ine-lnes, and rgpes of aii izes ahd de- 
feriptions, 
SE _ 
MR. A. G. ECKHARD1’S (BERWICK-STREET), 
Sor Improcements in Book-binding. 
Syme years ago, @ patent was obtained 
4 
the retarding the revolutions of 
New Patents lately Enrolled. 
/ 
| April I, 
for the purpofe of producing freedom m 
the opening of all forts of books by means 
of atirm back, applied to a book befvre 
it is covered : ‘the prefent invention conu- 
fifts in producing the fame effect upon all 
kinds of books after they are covered, 
by the fame firm back applied exter- 
ually; to which is attached by hinges, 
or flaps, made of the fame materials, to 
which flaps are connected by hinges of 
any kind, ledges which completely en- 
clofe the “book on all ides, refembling 
the appearance of a book, The ledges 
at the bottom, or on the fides, are con- 
verted into fupporters for the hand when 
requiiite to write near the bottom or 
edves of the bodk; and thefe potlefs an 
ability to elevate or deprefs their pofition 
at ple: ture, with a power of bemg ren- 
‘dered ttationary, by means of a ttop. ar 
itops, which are aftixed to the flaps. 
The whole to be fecured by a leck, or 
other fattening, 
——e— 
MR. CHARLES SCHMALCALDER (LITTLE 
NEWPORT-STREET), for a Delineutor 
Ser taking Profiles, Sc. 
This mvention, which (at firft fight, at 
Tealt) does not appear the mott fimple 
poflible, confifts of a hollow rod, of fe- 
veral parts {crewed together, the whole 
length being from two to twelve feet, or 
even loner, It may be made of ial 
or any metal, but copper and brafs are , 
chiefly recommended. One end of this 
rod carries a fteel tracer, made to flide 
in and out, and to be faitened by the 
mill head force ed; the other end of the 
rod having likewife a round hole, to take 
up either a fteel point, black-lead pen- 
cil, or any metallic pomt, which may be 
fattened by a milled head ferew. A tube 
about ten inches long is fixed ina ball, 
in diameter futhcient to allow the rod 
before defcribed te flide eatily, but to 
ftand firmly. The ball with this tube is 
movable between twa half-fockets, form- 
ing tovethera ball and focket. lieve } Is 
a frame of wood two or three feet leng, 
lupported by two brackets. Through 
the fides of this frame are holes at cer- 
tain diltances, correfponding with the 
marks on the rod, by which originals are 
copied, to-any fine. by the following me= 
thod: The paper, ivory, &e. 1s fattened 
upon a fwinging board, either by ferews, 
or by a brats trame formed of two flat 
pieces of brafs joined together at the end 
by hinges, and having on the other end 
two buttons to fatten the paper between, 
ealily 
