38 Mr*. Smeaton’s Obfervatiom on the 
The faddle plates I would recommend to contain ten holes 
each ; fo that if the divifions are carried on to twenty more 
than what will be contained in the circle, there will be a piece 
containing twenty to cut off ; and this again being cut in the 
middle will afford ten holes to make each faddle plate; fo that 
there will be a place for a bolt on each fide the joint, and then 
putting a bolt through every other hole, there will be three 
bolts at an end. 
The pieces deftined for the faddle plates, thus obtained, being 
broader than can be admitted when put to this ufe, I would advife 
to divide the breadth of the plate into three equal parts ; and 
with a cutting hook (which perhaps will be attended with the 
leaft violence in the feparation) to feparate the two outfide pieces 
from the middle piece : by this means the two faddle plates 
(though double) will occupy one third only of the breadth of the 
hoop in the middle ; and two of the pieces cut off being applied, 
one on each fide of the faddle plate on the outfide, will anfwee 
in like manner for the rivet plates. 
The lafl: operation to compleat the joining of the hoop is the 
putting on the rivet plates : to compleat this, I would advife a 
piece of brafs, of three or four inches in length, to be filed fo as 
to anfwer to the infide of the hoop, when reduced to a true cir- 
cular form ; and being three-eighths, or one-half an inch in 
thicknefs, to file the oppofite fide fomewhat nearly concentric 
thereto ; apply the middle of its convex arch to the infide of the 
hoop at the joint, and then bringing on the middle of one of 
the rivet plates to the joint of the hoop, confine the three to- 
gether by a couple of narrow-chapped hand vifes, leaving a 
fpace between them capable of receiving a couple of pins as ri- 
vets on each fide the joint ; the holes for the rivets are then to 
be drilled through all, and a little fmoothed with a broach at 
their 
