436 
where the lcad is to be pressed out 
must be as long as the sheet is to be 
wide, and as wide as the sheet is to be 
thick ; the plate that forms one side of 
the aperture must be made to move by 
screws, nearer or further off the oppo- 
site side, when.a thinner. or, thicker 
sheet is required, and no core or rod is 
wanted. 
; HP bey 
To Mr. Richarp Francis Hawkins, 
of Plumstead, Kent, for an Invention 
of certain Improvements in the Con- 
struction of Anchors.—March 1822. 
TuEse improvements consist, first, in 
the construction of anchors differing in 
form from those in general use; and, 
secondly, in certain adaptations to an- 
chorsoftheold construction. Theshank 
is formed so as to consist of two parts 
towards the crown, with apertures or 
eyes in each, through which the arms 
or flukes may pass, and work frecly, 
the crown-picce turning with the arms. 
«<The interior of the crown-picce, or 
that part which is turned to the 
square of the shank, must be so ad- 
justed that the crown-piece may freely 
revolve and pass through the throat 
when the toggle is not in it.” The 
crown-piece has an aperture perfo- 
rated through it, into which the long 
thick picce of iron called the toggle is 
inserted. This toggle is fastened inits 
place, so as to project equally on both 
sides, and, by stopping against or 
meeting the throat of the shank, pre- 
vents the crown-piece and the arms 
from passing round, by which they are 
held at an angle of about fifty degrees 
from the shank. 
When this anchor is let go, one of - 
the ends of the toggle must come in 
contact with the ground, which puts the 
Proceedings of Public Societies. 
[ Dec. I, 
flukes in‘a posifion to enter ; and, when 
the strain is exerted upon the cable, 
that end of the toggle whichis upwards 
comes in contact with the throat of the 
shank, and sets the anchor in the hold- 
ing position. The adyantages of this 
mode of constructing anchors are, that 
they hold by both the flukes at once, 
and therefore the weight of metal may 
be diminished, and yet an equal if not 
greater eliect be obtained ; added to 
which, there is more probability of this 
anchor holding _ securely, into, the 
ground than those of the ordinary con- 
struction; and there being no stock to 
this improved anchor, reduces, the 
probability of fouling, whichean rarely, 
if ever, happen; hence, it. may be 
‘‘ catted, fished, and stowed, with 
greater facility and safety than a com- 
mon anchor.” 
LIST OF PATENTS FOR NEW INVENTIONS. 
H. Septimus, Clapton, Middlesex, mer- 
chant; fora bolt or fastening, particularly 
applicable as a night-bolt,—June 4. 
W. Huxham, Exeter, iron-founder ; for 
improvements in the construction of roofs. 
—June 4. nay vil 
H. Colebank, Broughten,-in Furness 
Kirkley Ireleth, Lancashire, tallow:chan- 
dier; for an engine for cutting, twisting, 
and spreading, of wicks,—June 4. .,. 
J. Barton, depnty-comptroller of our 
Mint; for a certain process for the appli- 
cation of prismatic colours to the surface 
of steel and other metals, and using the 
same in the manufacture of vations orna- 
ments.—June 4. rphale 
J. Frost, Finchley, Middlesex, builder ; 
for a new cement of artificial stone,— 
June 11, ib 
W. Feetham, Ludgate-hill, stove-maker ; 
for a certain improvement on shower- 
baths.—June 11. { 
~ PROCEEDINGS OF PUBLIC SOCIETIES. 
— > 
ROYAL ACADEMY OF MUSIC. 
rae object, of this institution, is 
to promote the cultivation of the 
science of music, and afford facilities 
for attaining perfection in it, by assist- 
ing with general instruction the natives 
of this country, and thus enabling 
those who pursue this delightful branch 
of the fine arts, to enter into competi- 
tion with, and rival the natives of other 
countries, and to provide for them- 
selves the means of an honourable and 
comfortable livelihood. It is to, be 
called the “Royal Academy of Music,” 
for the maintenance and general in- 
forty males and forty females, 
struction in music of a certain num- 
ber of pupils, not excceding at present 
Ist. The institution is to be founded 
and maintained by contributions and 
annual subscriptions, divided into four 
‘classes. 
1st class—Contributors of one hondred 
‘guineas or upwards in one payment, or 
‘fifty guineas and upwards, and under one 
hundred guineas, and an annual subscrip- 
‘ticn of five guineas, 
znd class—Contributors of fifty-five 
-guineas or upwards in one payment, or ten 
‘guineas and an annual subscription of five 
guineas.’ 
