ee 
[480° Fj 
{June 1, 
NEW PATENTS LATELY ENROLLED. 
MR. RICHARD BROWN’S (BISHOPs- 
“GATE-STREET), for Improvements in 
the Conftrudiion of feveral Parts of Ta- 
bles, and of various other Articles of 
Houfebold Furniture, which are fup- 
ported by Legs. 
N dining tables, and other articles of 
furniture of the fame kicd, Mr. 
Brown conneéts the top rails or framing 
in fuch a manner, that the fame may 
be difpofed or folded up in a fmall fpace 
when not required to be ufed. » The feve- 
ral parts are connected together by joints, 
which are fo difpofed as to admit of the 
feveral divifions being advanced or drawn 
back at pleafure. The flaps are hinged 
to blocks, and from thefe the flaps are 
fufpenced when the brackets are put back 
againft the advancing rails. The ead- 
flaps being conneéted with the advancing 
rails, by means of blocks and hinges, 
may be moved forwards and backwards 
with the rails, and when the flaps are, 
raifed up they may be fupported by the 
brackets turned forward from the faid 
rails. The patentee claims nothing with 
regard to the invention of the feveral parts 
of the framing, or the methods of con- 
e€ting the pieces together; they may be 
made and adapted according to any well- 
known and good form; and he adds, 
‘¢ that the number and difpofition of the 
pieces, as well as the materials of the 
joints themfelves, whether of wood, me- 
tal, er other fit fubfiance, and the form 
and fituation of the legs, are fufcepiible 
ef confiderable variations, according to 
the ufes and purpofes to which the frames 
are to be applied.”* 
—— 
MR. JOHN WOODHOUSE’S (HEYFORD, 
NORTHAMPTONSEIRE), for Improve- 
ments relative to Canals. ' 
Thefe imyrovements are divided by the 
patentee under four heads: the firft con- 
fits in the application of certain con- 
trivances for weighing boats, barges, or 
other veffels, whether they are laden or 
empty. An horizontal frame of timber 
is to be erested over a lock, of a fufficient 
height above the furface of the canal to 
admit boats, barges, or other yeflels to 
afs under it, and of competent firength 
to fupport the weight of the boats, barges, 
or other veflels, with their cargees, in- 
tended to be weighed. Upon this frame 
weighing machines of the beft conftrnc- 
, 
tion are to be placed, fuch as are capa- 
ble of fultaining the faid beats or other 
veffels. Let the weighing machines be fo 
arranged, that chains or bars, depending 
from the fhort ends of levers, may form 
two parallel rows, at fuch a diftance afun- 
der as to admit the veffels intended to be 
weighed to pals between them. Acrofs 
the bottom of the lock as many pieces of 
timber er iron are placed as there are pairs 
of chains or bars depending from the le- 
vers of the weighing-machineg. If thefe 
crofs picces be timber, they muft be load- 
ed with metal, fo as juft to fink in water. 
To each end of thefe crofs pieces aftiong 
chain muf be faftened, and each of the 
chains depending from the machines muft > 
terminate in a ftrong hook, and be fur- 
‘nifhed with an adjufting fcrew or wedge 
capable of lengthening or fhortening the 
bars or chains. 
When a veffel is to be wejghed, it muft 
{wim into the lock, and the crofs pieces 
drawn up by their chains until they come 
ipto contact with the bottom of the vef- 
fel. The chains of the crofs pieces are 
then to be hooked to the depending bars, 
and to be made tight by adjufting fcrews 
or wedges. A fufficient quantity of wa- 
ter is then let out of the lock into a fide 
pond (where it is preferved), to leave the 
veflel fufpended on the machines. To 
afceriain the whole weight fuftained, the 
main levers muft be connected by means 
of a bar or other means, and weights fuf- 
pended from it will give the refult. 
Secondly, The next obje&t of this pa- 
tent is that of conveying veffels from one 
Jevel of a canal to another without locks. 
For this purpofe the upper and lower le- 
vels are to be brought to within fuch a 
diflance of each other as fhall be fome-_ 
what more than the length of the veffel 
to be conveyed. Each of the levels are 
to terminate in two canals; wide encugh 
to admit the boat, barge, or other vefiel; 
and the {pace between the two levels muit 
be divided lengthwife into two {paces by 
a partition of timber, of a fufficient 
ftrength, and carried with the ends and 
fide walis a fufficient height above the top 
level, to fix the machinery upon, turning 
a proper arch or arches in the end wall 
next the lower canal, for the veflel'o fwim 
underneath. Each of thefe fpaces muft 
be fufficiently large to admit a water- 
tight veffel calied a coaduftor, capacious 
enough to fwim the vellel in. Each of 
the 
