348 
into the hole thus made is:iput-a bolt 
or pin of copper; brass; or other metal 
(iron excepted), or mixture/of metals; 
least likely to ‘corrode® or* rust, ‘and 
thereby injure thehemp; and, when the” 
pin is passed through the several lays 
of rope, it is rivetted, ‘$0 as to confine 
the several lays of rope firmly together. 
In making square ropes for cables, 
and the standing rigging of ships, two, 
four,,.six, eight,.or more, flat, ropes, 
bands, or belts, as above made, .are 
placed: inthe «press» edgeways, and 
perforated in‘ across direction, or 
through the respective ‘bands, by’ the 
bodkin or piercer. Metallic bolts or 
pins, such as above mentioned, are 
passed through the lays and bands, 
and rivetted, so as to confine them to- 
gether, forming a square, or any other 
shaped compact rope, of several lays, 
firmly connected. 
This mode of forming flat bands or 
sqilare ropes, constitutes the invention 
of Mr. Harvey.— Repertory. 
To Mr. CHartes BRoveniP, of Great 
Portland-street, for an Improvement 
in) Vessels to'be used in heating Fluids 
and Substanees. 
Mr. B. constructs the bottoms of the 
vessels respectively not flat, nor con- 
vex, nor cancave throughout, as hath 
heretofore been done, but so varied as 
to the internal and external surfaces 
thereof, as to constitute or form two or 
more troughs, or places of capacity, 
below or lower than the rest of the 
said bottoms; against which, and in 
the parts between the said troughs, the 
action of the heat and ignited vapour 
is allowed to be exerted ; and he makes 
the said troughs, or places of capacity, 
of any conyenient form or figure, al- 
dhough, by preference, he adopts the 
semi-cylindrical figure, with an. in- 
terval between trough and trough, of 
about one-fourth part of the measure 
ef the diameter of the semi-cylinder. 
And, further, that in such.cases as re- 
quire the contents of the vessel to be 
stirred or agitated, or in which such 
stirring or agitation may be preferred 
or required, he makes use of a chain 
or chains, rake.or rakes, or similar.in- 
Strument or instruments for that, pur- 
pose, to act within the said troughs; 
and-in every case he prefers that.the 
vessel should be filled toa little depth 
only above the parts, of the bottom be- 
tween the said troughs, and that-there 
should be no side flues or cavities; or 
channels, by means of which the heat 
ean or may apply to any space of the 
New Patents and Mechanical Intentions. 
[May 1, 
sutfacerof the wesselowlichik;} oF may 
be above. the fluids or éthér sabstanees 
therein ‘to be ‘heated.’ And ‘further, 
that the construction of the bottoms of 
the vessels may be’ niade With -Various 
diniensions, and ‘rélatiye situations, of 
the “several parts, according - to,,the 
local. circumstances and «particular 
uses of the same. ’ + th 
It is not essentially necessary, that 
the troughs and fire-place shouldsbe so 
placed as that the flame, or’ ignited ‘or 
other vapour, or air, should cross the 
line of direction or length of the 
troughs ; but that the flame, vapour, or 
air, may be made to move along the 
said troughs, or in’ any other course, 
with good eflect—— Repertory. 
To Joun Westwoon, of Sheffield, for 
a Method of Embossing, Kvory by 
Pressure. ; 5 
He. uses a press or machine, com- 
monly called a fly, upon: the: priuciple 
of the coining-press, being of,cousider 
able power, taking. one, two, and/some- 
times three men to work it, according 
as the size and depth of the impression 
to be made may require. Updn,the 
upper part of the dies the design is eut, 
out of which an impression is intended 
to be produced, and round whicli de- 
sign the steel is cut and filed away. te 
admit of a collar being placed thereon. 
The lower dio he first places under 
the bolt of the press, upon which) die 
he puts a collar sufiiciently: deepsea 
cover the sides of the ivory which he 
means to press. He then puts) the 
ivory (which has been previously made 
perfectly true, and of the propen|size) 
within the collar, resting upon the die, 
by which it is secured from damage:by 
excess of pressure, and place, that-part 
of the die, (which he calls the, upper 
die,) «pon the ivory, the edges ofthe 
die going a little within the collar;and 
filed suflicientiy to admit.of its: going 
with the pressure upon the ivory; ‘4nd 
he then brings down the lever df the 
press.once or oftener, which, by forcing 
the bolt upon the dies and ivory, pro- 
duces the impression required, without 
any other preparation of the:ivory than 
as above stated, except that, in using 
transparent ivery, which is: generally 
of .a brittle natnre,: he, puts) itvinto 
water(if in the winter, warm, andvif 
in, the summer, cold,) ashortdime, pre- 
viously fo itsyheing used.» The lever 
is then, thrown.up, the collar released, 
and the ivory generally drops.out;:but, 
if, it should not,: the ‘collar is removed, 
and the, ivory, is) driven out with a 
mallet— Repertory, 
LIST 
