Glasgow weekly times. (Glasgow, Mo.) 1848-1861, 1857-01-15

TTHE, undersigned has purchased the Right of
l. the State OF Missouri, Of o. 5. Woodcock's
Improved Mode of Hanging Reciprocating Saws,
Patented Sept. IL, 1855, No. 1884.
The nature OF the improvement consists IN at
taching the lower end OF the saw directly TO the
upper end of the pitman-the g-pin Of the saw
forming joint, and the pitman working on a suit
able fr1crum below the tug-pin. 4 represents the
saw sash in about the middle Of the downward
motion or cut of the saw. 1t will be perceived the
lower end Of the saw is thrown little forward
TO the cut of the log. represents the saw in the
act of ascending, about the centre of the upward
stroke. II will be seen that the lower end of the
saw stands slightly back from the cut By that
means the saw dust has ample room for escape
during the upward movement Of the saw, and the
saw is prevented from being checked or clogEed,
and will run lighter, and wiil bear more feed and
consequently cut more rapidly than saws hung in
! the usual way The above cuts are a traverse
section Of sash mill, giving full view Of the pit
| man and hiding the lower end of the stiles. The
| ptinan is fastened permanently 10 the lower rail
! by the stirrup coming down on the pitman and
! boled securely. The lower ends of the stIles are
connected by journal Joint to the upper edge of
the rail( lin any of the usual ways OF forming a
working iOnt.) The tug-pin will be few inch
es above the JOINTS at the stiles The upper stir
rup will be in the usual form. The lower stirrup
| should have set screws 10 keep the saw IN line
| The bottom of the saw shoud vibrate about one
and half inch so as to clear the cut without CIV
when the crank is on the upper or lower centre. }
Whenthe saw is in motion it makes an epicyclodjal
curve at eyeI revolution Of the crank. Any prac-
teal sawyer will readily the advantages of it.
II commences cutting as soon as the crank passes
the upper centre and increases its cut until il
reaches the quarter centre, half the cut OF the
saw, from that point the cut becomes lessened as
the crank approaches the lower centre, and Leaves
the log before the cut is quite spent, and immedi
ately recedes from the cut, leaving ample room
for the saw dust TO escape into the pit. In fact
the motion of the saw pitches every particle ol
the saw dust out of the cut soon as the teeth o
the saw becomes detached from the log, precisely
as grain leaves the top Of an elevator, or, waite
from chain pump. The log will remain NOR
firm on the carriage, when cutting small logs, an,
consequently will bear more feed. Every sawYe
has experienced the difficulty OF holding small log
on the mill, Gas il is termed) particularlyi If tn
: log is very long. In Woodcock's Patent, tha
disagreeable bouncing motion Of the log, is alnol
entirely done away with In large logs il |
scarcely necessary to dog the logs on the carriag
at all. 1t is well known fact to sawyers, thO
in using the reciproeating saw with rake, on til
old plan, that there is great difficulty in maxim
the dogs hold fast, How often have they seen tn
saw lit the end of the log clear off the carriag
blocks, and by that mears break valuable saw {
some other part of the machinery? The advar
tage in cutting with Woodcock's Patent, is thi
il will cut one half more in large timber, and or
fourth more in ANAL timber, il is easy TO ri
through the cetre of a log feet in diameter, as
log 2 feet, in saws hung the old plan. 1t has al
other advantage, viz: all the saw dust passes il
TO the pit by the cut of the saw it leaves the oC
of the mill clean, as is also the top of the log Will
saving. a8f -.-N#
1t works IN Mulley Saw Mill as well Gs
sash; all that is required is 10 have fulcrum fl
the pitman, equivalent 10 the Journal joints of Il
stiles, or by placing the pitman cross head a fe
inches below the top of the pitman, just far enous
10 make the top of the pitman or bottom Of Il
saw vibrate about one and half inch. The pro-
cr distance for the fulcrum from the top Of II
pitman will be found, by drafting the length
pitman with the length Of crank, or half the Y
bration of the lower end OF the pitman.
The improvement is durable and economic;
not liable 10 get out Of order. Any MulIcy
sash saw mill can be changed at the cost of "a fe
dollars. The extra amount cut IN two days say
ing will pay all expenses Of the change.
In Mulley saw mills the saw can be attached
the upper end OF the pitman irons, regulated
set screws, or by ushgthe usual clamp orpendar
The above improvements are being made at ;
the principal machine shops in St. Louis. -
Persons wishing to make the change can ha
: irons manufactured TO suit the situation OF Il
i mill in whiciI they are 10 be used.
" RET- For County or Individual Rights addres
NJ. ENGLISH,
Dec. IS, 1856. Glasgow.