(22078)


igh, and of Dlining Marble.  Neai thefe Animals
)Columns ;. and not far off the Figure of a Pegafus.
r this Gate is pafs'd, are fIund a great Number of
as of white Marble; the Remains whereof fliew the
icence of the Work: the fmallell of thefe Columns
een Cubits high, the largefl eighteen ; each has
lutings, three large Inches broads whence the high-
the whole may be guefs'd at, with the other i'ro-
s. Near the Gate is an Infcription on a fquare piece
ble, fmooth, as Glafs, containing about twelve Lines:
hara&ers are of a very extraordinary Figure. refem-


bling Triangles and Pyramids.                - -
Thefe noble Ruins are now the Shelter of Beatus and
Birds of Prey. Befides the Infcriprion abovemention'd,
there are others in AIrabic, Perfian, and Greek. Dr. Hide
obferves, that the Infcriptions are very rude and unartful;
and that fome, if not all of them, are in praife of Alexan-
der the Great, and therefore later than that Conqueror.
IM. Le /A'run tells us, that he took his Voyage to the
F4al1-Indies merely for the fake of viewing the Chilminar.
The Word comes from ther Perfian Tchehelminar, forty
Towers, or Columns ; on account of the forty Columns of
an enormous fize feen there.
CHIMERA, a fabulous Monfler. which the Poets feign'd
to have the Head of a Lion, the Belly of a Goat, and the
Tail of a Serpent; and to have been kill'd by Bellerophon,
mounted on the Horfe Pegafus.
. The Foundation of the Fable is this; that antiently in
JTvycia there was a Vulcano, or burning Mountain of this
Name; the top whereof, which was defart, only inhabited
by Lions ; the middle, having good Paflures, by Goats ;
and the foot, being marfhy, by Serpents. Thus Ovid,
-Mediis in partikus Hircrim
peaus, e ora Lee, caudam Serpentis babebit.
.Bellerophon being the firfl who caus'd this Mountain to
be inhabited, 'twas feign'd he flew the Chimera. Pliny
fays, the Fire thereof would kindle with Water, and ex-
tineuifh with nothing but Earth or Dung.
- CHIMES of a Clock, a kind of periodical Mufick, pro-
duc'd at certain Seafons of the Day, by a particular Appa-
ratus added to a Clock. See CLOCK.
To calculate Numbers for the Chimes, and to fit and di-
vide the Chime-Barrel, it muil be obferv'd, That the Bar-
rel mufl be as long in turning round, as you are in finging
the Tune it is to play.
As for the Chime-Barrel, it may be made up of certain
Bars which run athwart it, with a convenient Number of
Holes punch'd in them, to put in the Pins that are to draw
each Hammer: by this means, the Tune may be chang'd,
without changing the Barrel: Such is the Royal Exchange
Clock in London, and others. In this cafe, the Pins, or
NGuts, which draw the Hammers, mull hang down from
the Bar, foome more, Come lefs; and Come flanding ups
right in the Bar: The reafon whereof is to play the Time
of the Tune rightly: for the Dillance of each of thefe
Bars may be a Semibreve * but the ufual way, is to have
the Pins which draw the Hammers fix'd on the Barrel.
For the placing of thefe Pins, you may proceed by the
way of Changes on Bells, viz. I, 2, 3, 4, SC. or rather,
make ufe of the Nlufical Notes: where it mull be obFerv'd,
-what is the Compafs of the Tune, or how many Notes, or
Bells, there are from the highelf to the lowei+; and ac-
cordingly, the Barrel mull be divided from end to end.
Thus, in the following Examples, each of thofe Tunes
are eight Notes in compafs; and accordingly, the Barrel is
divided into eight Parts. Thefe Divifions are fruck round
the Barrel ; oppofite to which are the Hammer-Tails.
We fpeak here as if there was only ones Hammer to each
Bell, that it may be more clearly apprehended: but when
two Notes of the fame Sound come together in a Tune,
there mutl be two Hammers to the Bell to firike it: So
that if in all the Tunes .you intend to chime of eight Notes
compafs, there mliould happen to be fuch double Notes on
! every Bell; inflead of eight you muff have fixteen Ham-
mers, and accordingly you muut divide the!l Barrel, and
ftrike fizteen Strokes round it, oppofitc to each Hammer-
Tail: Then you are to divide it round about, into as ma-
iny Diviifons as-there are Mufical Bars, Semibreves, Mi-
nims, ec. in the Tune.
.   Thus, the hundredth Pfalm-Tune haA 'tweny Seqmibremvs,
and each Divifion of it is a Semibreve: :e frft ifr te of
it alfo is a Semibreve; and therefore on the Chine-ar-
-tel muil be a whole Divifion, from    to io ; as 48_y9U
X ,may underfland plainly, if you conceive the Surface of a
Chime-Barrel to be reprefented by die following Tables ; 'as
if the cylindrical Superficies of the Barrel were flretch'd
out at length, or exten&ded on a Plane  and then fuch a
Table, fo divided, if it were to be wrapp'd round the Bar-
rel, would udew the Places where all thte. Pins are to Rtand


in the Barrel For the pots rnning about the Tablei are -
the Pcar        Prins t_  l..,k In. Iun-e


C H I , I  X


Indeed, if the C'himes are to be compleat, yob ought t6:
have a fet of Bells to the Gamut Notes; fo as that eachd
Bell having the true Sound of fti, la, mi, fa, you may play
any Tune with its Flats and Sharps; nay, you may by this
means play both the Bafs and Treble with one Barrel:
and by fetting the Names of your Bells at the head of
any Tune,, that Tune may eafily be transferr'd to the
Chime-Barrel, without any Skill in Mufick: But it mull be
obferv'd, that each Line in the Mufick is three Notes dif-
tant; that is, there is a Note between each Line, as well
as upon it.
th11e Notes of the roo Pfalm.


I a  I   1


A l'able for dividing the Chime-rcarrel of the
ioo Pfalm.


I    I I I I I I I       L  II  i      [T     I 11.J


_- __- _ i 4hel'__e_


aI  Ia               a I        I  I  I   I    I   i     I    I    I    
  I  I   a     I    I


I
7-


3-


CHIMIN, or CHEMIN, in Law, a Road, or Way.
See ROAD. Hence,
CH IMINAGE, a Toll for Wayfarage thro' a Forefl.
The Feudifts call it Pedagiurn. See PEDAGE.
CHIMNEY, in Architefture, a part of an Apartment,
wherein the Fire is made. See FIRE.
The Parts of a Cbimnney are the 7ambs, or Sides, com-
ing out perpendicularly, Sometimes circularly, Eec. from
the Back; the Alantle-J'ree refis on the Jambs: The
7Y1e, or Funnel, which conveys away the Smoke; the
Ch7imney-piece, or Moulding, on the forefide of the Jambs
over the Mantle-Tree; and the Hearth, or Fireplace.
Palladio fettles the Proportions of a Chamber Chimney
thus ; Breadth on the Infide, 5 , 6, or 7 Foot; Height
to the Mantle-Tree, 4 or 4' ; Depth, 2 or 4T Foot.
According to Woufius, the Breadth of the Aperture at
bottom to be to the Height, as 3 to 2, to the Depth as 4 to
2_ In fmall Apartments the Breadth is i Foot, in larger 5;
in Bed-Chambers 4; in fmall Banquetting Rooms 5-, in
large 6. But the Height never to exceed 42, let} there be-
ing too much room for the Air and Wind, the Smoke be
driven down into the Room. Nor mull the-Height be too
little, left the Smoke mifs its way, and be check'd at firft
fetting out. The fame Author advifes to have an Aperture,
.thro' which the external Air may, on occafion, be let into
the Flame, to drive up the Smoke i which the internal
Air would otherwife be unable to do. See S-ovE.
The Mouth of the Tube, or that part join'd to the Chim-
nsey-Back, Felibien7 orders to bee. a little narrower than the
telld; that the Smoke coming to be repell'd downwards,
meeting with this Obflacle, may be prevented fidm getting
into the Room.
Some make the Funnel twilled, to prevent theSmoke's
descending too eafily: but the better Expedient is to make
the Funnel narrower at bottom than at top ; the Fire im-
pelling it upward more eafily when contrafed at bottom;
and in mounting, it finds more fpace to difengage it felf,
and therefore has lefs occafion toreturm into the Chamber.
P'o prevent foaking CasMz14E4i, M. Lucar.advifes two
Holes, or two Pipes, one over the other, to be left in each
fide of the Chimney; one (loping upwards, the other down-
wards: : thro' one of thefe, fays he, the Smoke will pafs in
any pofition.
wDe I'Orme orders a Brafs Ball full of Water, with one
fmall Aperture, to be hung up in the Chimney, at a Height
a little above the, greatei Flame: here, as the Water
grows hot, .?twill rarefy and drive thro! the Aperture in a
vapoury Stream, which will.drive up the Sm   ke that wou'd
otherwife linger in the Funnel.
Others pAtce a kind of moveable Vane, or Weathercock
a-tofp of tli Chi.mney: Co that what way foever the Wind
icomes, the Aeture of. the Chimney will be fkreen'd, and
ther Smcke have fiee egrefs. Indeed, the bell prevention
of aAfbkirn CKimney, feens to lie in the proper Situation
of th ~ Doors of the Room, and the apt falting back of the
Back, and convnt gathering of the Wings and Breakt
ofl the (bim  .hfi S.
'Tis a Rule, in Building, that no Timber be laid with-
in r.Ineies.of the Forefidte of the Chimney Jambs; that
all Joifis on the Bark of the Chimney be laid with a Trim-
mer,




%0 V -
III


:= -




-


l  l  l  @  l  l  l  l  -  l  i  l  l  l  l  l  sBs
- - - - - v v - - - - l -






T 1-1 _U 1, M-T I lwl
I I-ILI I I I I I I I I I 1_1 11
. . - . I - - . . I .. . . . . . .


i


i'










v


%_k KV I


N
L
I


At




- - -     -     ... 0 .4401, r4ay 4,4*V  , _ .




> -


IIl


e


i