Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1819-04-02
THE BELT SAW.

The editor was invited few days since. TO
see the tie newly invented Belt or Strap sa,r,
in.o?eration and although very little acqunint.
eo with nlarhinery in general, he could not help
believing that great desidcratum was obtain.
ed by tiiis application OF power.
ihe cnief ObIections to Tie common upright
saw, worked by II crank, we are told, are as
follows say thai it makes 100 strokes per
mIhnte, OF from Is TO "a inches long-the log
is pushed TO the saw by means OF fcc;'.arrn
acting upon ii rag wheel, put in motion by the
return stroke of The saw.gate. If The log is
large, 1t requires bat little feed The ratchet
Is then often missed, and the saw does nothiBg,
or next TO nothing, major part of the time
and that the teeth of this saw are much more
iDhred by The up stroke, than by the cutting
or down stroke, by reason of the saw dust,
sand, &c. that remains in the cut of the log
tue upper part Of the tooth being oftenfimes
rounded or rubbed OFT vixen the lower part is
very little injured. The up.stroke also has a
tendency to destroy the set OF the saw. Ii is
further represented TO be among the disadyan.
tageS attending SUCH saws, Ia the great length
required iOr Tie connecting rods, or pilmen--
HE Carriage way being necessarily rs feet
IRON the crank, or else the saw will move bad
~ and jar very much, the dead centre OF
ihe CT ank Is passed to remove which defect.
IL is said, no method has ever YET been disco.
yered. The best remedy for il is ia = xteud.
ing the distance between the crank and
the saw; and the cost, difficulty and extra
labor required either TO dig down iOr the pur
Pose, or raise up the logs on carnage way.
elevated above the common surface of The
adJaceill earth, are well known TO evefs BODY
lie BELT saw is free IRON all those dsad
VaDiaSes-sS II l. always revolving and al,c0ys
sutting II regular rate, the log is always
pressed against II ia regular manner, aud
the WORK goes on without any stoppage, Jar,
or impeachment whatsoever Thus il IN esti.
mated that this saw will cut twelve times as
mneh wood, 10 one shar pening, as tie common
mill saw. The comparative force Of these
saws, we are told. may be calculated thus !:
Tue saw moved by crank may make 100
strokes.2 ieei long.p eT n..nu;e--Of course 200
feet of saw ~ passed in "a log in Il minnfe-the
bell saw rs " feet long, passing reund two
ieet wheeis,Or drums, at the raie of l50 rev0.
luti0ns ~ minute, viii "a strong regular feed.
liie difference is at once so obvious that no.
ihing more need bc said abOutit. Mr.. French,
tie EIll' wright WHO put the saw we are speak.
ins Of, uHder the direction OF tic inventor, is
Wiling 10 contract to erect mill, ii the pow
e. that - required is giveH 10 him, which hall
cut 5000 feet of boards IN ~ hours, with one
saw aud he states his opinion that il will do
ths with one sharpening, unless in case of
accident.
We shall now describe the Belt Saw. which
IS very supple is made OF one piece a ID
passed round two drums, one above aud the
other below Use position OF the log these
drums axe raised OF depressed sBeedfequ.fes,
ahd tie s2w, strained BY lh9u, moves ~ q