Glasgow weekly times. (Glasgow, Mo.) 1848-1861, 1857-01-29

rTNHE undersigned has purchased the Right Of
Il the State of Missouri, of o. s. Woodcock's
Improved Mode of Hanging Reciprocating Saws,
Patented Sept IL, 1855, No. 1854.
The nature of the improvement consists IN at
taching the lower end Of the saw directly to the
upper end OF the pitman-the tug-pin of the saw
forming Joint, and the ptman working on suit
able fulcrum below the tug-pln. A represents the
saw sash in about the middle of the downward
motion or cut of the saw. 1t will be perc eiyed 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 1t 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 clogged,
and will run lighter, and will bear more feed and
consequently cut more rapidly than saws hung in
the usual way The above cuts are tranverse
section OF sash mill giving full view of the pit
man and hiding the lower end of the stiles. The
pitman is fastened permanently to the lower rail
by the stirrup coming down on the pitman and
bolted securely. The lower ends of the st,les are
connected by journal Joint to the upper edge of
the railQ any of the usual ways of forming a
working Jornt) The tug-pin will be few inch
es above the JOINTS at the stiles. The unper stir
rup will be in the usual form. The lower stirrup
should have set screws to keep the saw in line
The bottom of the saw should yibrate about orc
ing the saw any rake. (The saw being plumb,
when the crank is on the upper or lower centre. !
When the saw is in motion it nalIesan epicyclodial
curve at every revolution of the crank. ANY prac-
tcal sawyer will readily see the advantages of it.
1t commences cutting as soon as the crank passes
the upper centre and increases its cut until it
reaches the quarter centre, or 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 immed-
ately recetles 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 of
the saw dust out OF the cut as soon as the teeth Of
the saw becomes detached from the log, precisely
as grain leaves the top Of an elevator, or, water
from chain pump. The log will remain more
firm on the carriage, when cutting small logs. and
consequently will bear more feed. Every SAWYER
has experienced the difficulty of holding small logs
on the mill, (as it is termedO particularly if the
log is very long. In Woodcock's, Patent, that
dsagreeable bouncing motion of the log, is almost
entirely done away with. In large logs it IS
scarcely necessary to dog the logs on the carriage
at all. 1t is a well known fact to sawyers, that
in using the recproeating saw with rake, on the
old plan, that there is great difficulty in making
the dogs hold fast, How often have they seen the
saw lift the end of the log clear off the carriage
blocks, and by that mears break valuable saw OF
some other part of the machinery? The advan.
tage in cutting with Woodcock's Patent, is this
IL VIII cut one naE more IN large timber, and one
fourth more in ANAL timber or it is as easy to rir
through the cetre Of log feet in diameter. as
log feet, i'll saws hung the old plan. 1t has an.
other advantage, viz: as all the saw dust passes in
TO the pit by the cut of the saw it leaves the foo
OF the mill clean, as is also the top of the log willis
saving.
1t works IN Mulley Saw Mill as well as ;
sash; all that is required is to have fulcrum fo
the piman, equivalent to the journal joints of th
stiles, or by placing the pitman cross head few
inches below the top of the ptman, just far enough
to make the top Of the pitman or bottom of ii,
saw vibrate about one and half inch. The prop
er distance for the fulcrum from the top OF tin
pitman will be fouud, by drafting the length o
pltman with the length OF crank, or half the vi
| bratlon of the lower end of the pitman.
The improvement is durable and economical
| not liable TO get ont Of order. Any Mulley o
sash saw mill can be changed at the cost Of few
| dollars. The extra amount cut IN two days. saw
| ing will pay all expenses of the change.
In Mulley saw mills the saw can be attached t.
the upper end of the pitman irons, regulated BY
set screws, or by usingthe usual clamp or pendant
The above Improvements are being made at al
the principal machine shops in St. Louis.
Persons wishing TO make the change can hav,
irons manufactured to suit the Situation of tht
mill IN which they are TO be used.
GB- For County or Individual Rights address
M. ENGLISH,
Dec Is, 1896. Glasgow