1797.) 
that of any bridge on former principles. 
There may be two or more fulpeniing 
ribs erected in a line, where the river is 
tou wide for one ribto {pan over it, and 
in this cafe it will be neceflary to erect a 
pier to réceive the ends of the two ribs 
at their meeting. This pier, however, 
will not be liable to any ftrefs from the 
bridge, more than a perpendicular pref- 
fure, and will not require therefore to 
be of athicknefs to imterfere with the 
paflage of the water underneath. 
It may be added, that as the bridges of 
one {pan may be conftructed longer than 
any of the bridges of one {pan built here- 
tofore, fo, of courfe, the diftance between 
the buttreffes and the intermediate pier, 
or between pier and pier, may be greater 
than heretofore. ae 
From what was mentioned in our laft, 
and from an infpection of the plate, it 
will be obvious to every intelligent per- 
fon, that bridges built on Mr. Jordan’s 
plan, poffefs confiderable advantages in 
the following particulars : 
1. They require lefs time to execute, 
particularly as they will not be fubjeét to 
_ the interruption of tides. 
_ a. They may be ereéted with greater 
 eafe, and at a lefs expence. 
3. They will be eafier of afcent. . 
4. They will not be fo liable to decay. 
5. They may be repaired with more 
cértainty and facility, and at a much 
fmaller expence. 
-6. They will not be fubjeé to the 
accidents that have deftroyed others. 
_q. They can be ereéted of any extent, 
az well in regard to length as width. 
8. They can be fo fecured and com- 
bined, asto form as it were one entire 
piece. ; 
9. Their parts can be fecured from 
decays of an accidental nature, and affift- 
ed in their durability by the application 
of different prefervatives. 
10. Laftly, itis clearly evident, on in- 
{pection, that bridges of this conftruction, 
whatever their length, are in no refpeét 
fubjeé&t to the continual accidents which 
arife to bridges on the common conftruc- 
tion, from currents, tides, fwells, imun- 
dations, &c. &c. 
Mr. Perper’s MALT KILns. 
Letters Patent were lately granted 
to Mr. John Pepper, of Newcaftle- 
under-Lyne, in the County of Stafford, 
builder and architeét, for an improve- 
ment in the firuéture of kilns, for the 
drying of malt or other grain, by which 
five-fixths of the prefent expence in 
fuel will be faved. Slack, peat, wood, 
é&c. may be ufed in licu of cokes, and 
Monruiy Mac. No, Alil. 
New Patents.—WMalt Kilus.....Chandeliers, &c. 
‘the upper fide of it. 
49 
the grain will be dried with more cer- 
tainty, and the obnoxious vapours which 
are fo injurious to it, andto the health 
of the workmen, are totally excluded. 
The fuel in thefe kilns is put into a 
caft--metal mz@#e,-placed under the cen- 
tre, and adapted to the fize of the kiln. 
To this muffle are joined pipes of rolled 
iron, &c. which carry the heat to the - 
extreme parts, and terminate in a chim- 
ney, which is fo regulated: by dampers, 
as to enable the workmen to increafe 
or decreafe the heat at pleafure. 
Mr. Larount’s CHANDELIERS. 
On the 23d of December, Letters Pa« 
tent were granted to Mr. Moses Las 
FOUNT, of Pentonville, in the county of 
Middlefex, for hisnewly invented method 
of conftructing chandeliers, girandoles, 
luftres, &c. fo that the upper and lower 
branches thall appear to be all of one 
piece. The method he adopts is to unite 
the upper and lower branches in a plate 
concealed by an ornamented hoop. The 
upper branches are affixed in fockets 
which are annexed to the infide of the 
hoop ; and the lower branches ‘have 
turns in the upper end ike the top of an 
S; the turns pafs through the plate, and 
their extremity is affixed into fockets on 
As the» former _ 
fockets on the hoop, and the latrer fock- 
ets on the plate, are in the fame vertical 
plane, the upper and lower branches of 
the chandelier, which are affixed into 
thofe fockets, will, of courfe, appear to 
the eye as of one entire piece, and, con- 
fequently, the effect will be greatly im» 
proved. 
The principles and particulars of the fol 
lowing Patents fball be detailed in our 
next, or following Number : 
On the roth of November, Mr. W. 
RALEy, of Newbald, inthe eaft riding 
of the county of York, a patent for a 
Horizontal ‘Turning Churn for churn- 
ing butter. 
On the 28th of June, Mr. RoBERT 
Mixer, of Milton Printfeld, in the 
county of Dumbarton, Scotland, for his 
method of weaving all kinds of linen, 
cotton, and woollen cloths, by means of 
looms wrought by fteam, water, &c. 
On the 7th of January, Mr. Joun 
Govey, of Hollen-fireet, in the county 
of Middlefex, for his improvement in. 
the carriages of great guns. 
-On the 17th of December, to Mr. 
Lroyp, near Newcaftle-under-Line, for 
his invention of a Stove, &c. on anew 
conftruétion. 
H | On 
