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DireStions for making the Balance. 
I T confifts of a mahogony fland, a fteel beam and 
brafs ring for the divifions. 
F G H is the triangular bafe of the ftand, 
having a fcrew in each angle to fet it level: 
into this is dove-tail’d the upright back KK; the 
ftandard board L L L is put into a dove-tail’d 
groove in the back, and tenonted into the trian- 
gular board at the bottom. 
The two cocks C C, between which the arbor 
of the beam plays, and the ring R R arc fcrew’d to 
the ftandard board L L. 
The beam A B, with its cock or index E, is broad 
in the middle to gain ftrength, and pierced to make 
it lighter. It is rivetted on a collet foldered to the 
arbor, as clock wheels are. The pivots run in hard 
brafs, and have plates of hardened fteel for their points 
to bear againfl. 
At one end of the beam is the counterpoife A, 
confiding of two round pieces of brafs, ferewed to- 
gether through an hole in the beam. The other 
end of the beam is made thicker for about half an 
inch in length, and flit to receive a loop of hardened 
deel, which hangs on the deel pin B > on the lower 
part of the loop hangs the hook, which holds the 
Ikain. 
The block of wood N, is ferewed to the dandard 
board j the upper part of which is lined with velvet 
for the counterpoife to red upon, when the flcain 
is taken off the hook ; the brafs pin P is for the 
other arm of the beam to bank againd. 
The 
