Glasgow weekly times. (Glasgow, Mo.) 1848-1861, 1856-12-18

TTNHE undersigned has purchased the Right Of
l. the State of Missouri, Of o. s. Woodcock's
Improved Mode Of Hanging Recprocating Saws,
Patented Sept. II, 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 pitman working on a suit
able fulcrum below the tug-pn. A 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 a little forward
to the cut of the log. B 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 traverse
section Ola 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 stiles are
connected by a journal joint TO the upper edge Of
the rail in any of the usual ways of forming
! working loint) 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 low er stirrup
should have set screws to keep the saw in line
! The bottom Of the saw should vibrate about one
and half inch so as to clear the cut without Civ.
! 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 il makes an epicyclodial
curve at ever revolution Of the crank. Any prac-
teal sawyer will readily see the advantages of it,.
| 1t commences cutting as soon as the crank passes
| the upper centre and increases its cut uuhl 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 innedi-
ately recedes from the cut, leaving ample room
for the saw dust 10 escape into the pit. In fact
the motion OF the saw pitches every particle of
the dust out of the cut as as the teeth of
the saw becomes detached from the log, precisely
as grain leaves the top of an elevator, or, water
from a 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 log.
on the mill, las it is termed,) particularyif the
Il log is very long. In Woodcock's Patent, that
disagreeabe bouncing motion Of the log, is almost
, entirely done away with. In large logs it /;
scarcely necessary to dog the logs on the carriage
at all. 1t is a well known fact 10 sawyers, thai
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 lit the end of the log clear off the carrag,
blocks, and by that mears break valuable saw OIL
some other part of the machinery? The advan
tage in cutting with Woodcock's Patent, is this
it will cut one half more in large timber, and on,
fourth more in ANAL timber, or it is easy to riI
; through the cetre of log feet in diameter, as
log 2 feet, in saws hung the old plan. 1t has an
other advantage, viz: as all the dust passes in
to the pit by the cut of the saw, it leaves the foo
of the mill clean, is also the top of the log Wills
7 saving
, 1t works IN Mulley Saw Mill as well as
> sash; all thatis required is to have fulcrum 70
the pitman, equivalent TO the journal joints of tn
stiles, or by placing the pitman cross head few
inches below the top of the pman, just far enoug
to make the top of the pitman or bottom of tn
saw vibrate about one and half inch. The prop
!, er distance for the fulcrum from the top Of tn
! pitman will be found, by drafting the length c
1 pitnan with the length Of crank, or half the vi
bration Of the lower end of the pitman.
The improvement is durable and economical
not liable to get out OF order. Any Mulley o
sash saw mill can be changed at the cost of fe,
}. 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 b
1 set screws, or by usinghe usual clamp or pendan
o The above improvements are being made at a
q the principal machine shops in St. Louis.
Persons wishing to make the change can hay
" irons manufactured 10 suit the situation of tn
: mill in which they are TO be used.
/. CT For County or Individual Rights address
NJ. ENGLISH,
Dec. IS, 1856. Glasgow.