Glasgow weekly times. (Glasgow, Mo.) 1848-1861, 1857-02-19
@. s. WOODCOCK'S
u At II NJ II .

TJNHE undersigned has purchased the Right of
j. 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
Rching 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 suit
able fucrum below the tug pin. 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. 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 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 of sash mill, giving full view of the pit
man and hiding the lower end of the stiles. The
ptlnan is fastened permanently to the lower rail
! by the stirrup coming down on the pitman and
bo'ted 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
working joint.) The tug-pin will be few inch
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 vbrate about one
and half inch as to clear the clt 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 epcyclodial
curve at evei 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 until il
reaches the quarter centre, or halt the cut OF the
saw, from that point the cut becomes lessened as
the crank approaches the lower centre, and leaves
tne log before the cut is quite spent, and immed-
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 of
the saw dust out OF the cut soon 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 viii bear more Feed. Every sawyer
mas experienced The difficulty of holding small logs
on tie mill, (as it is tcrmed,) particularlyif the
log is very long. I'm Woolcock's Patent. that
disag eeabe b1aRriisg motion OF the log, is almost
entirely done away with. In large logs it Is
scarcely Necessary 70 dog the logs the carriagc
al all. 1t Is a well known fact TO sdwyers, that
IN using the reciprogang with arakc. on The
old plan, that there is great difficulty in maxim.
lie dogs hold fast, How often have the V seen TIL
saw VT the eud Of the log clear oiFthe carriage
blocks. aid By thnt mears break a valuable saw ol
some other part Of the machinery? The advan.
iage ia cutting with Woodcoci;'s Patent, is this
it will cut one half more in large timber, and one
fourth more in ANAL timber, or il is as easy TO riI
through the cetre of log feet in diameter, as
log 2 feet, in saws hung the old plan. II has an
other advantage, viz: as all the saw dust passes in
10 the pit by the cut of the saw, it leaves the flno
Of the mill clean, is also the top of the log willis
saving.
1t works IN Mulley Saw Mill as well as
sash; all that is required is 10 have fulcrum 70
The ptman, equivalent to the journal Joints of IN
stiles, or by placing the pitman cross head few
inches below the top of the ptmau ust far enough
TO make the top OF the pitman or bottom of tn
saw yibra,e about one and half inch. The prop
e er distance for the fulcrum from the top Of tn
, pitman will be fouud, by drafting the length Q
pitman with the length Of crank. or half tile Vi
I bration of the lower end of the pitman.
| The improvement is durable and economical
not liable 10 get Out OF order. Any Muliey 9
sash saw mill can be changed at the cost of fey
dollars. The extra amount cut m two days saw
ing will pay all expenses Of the change.
In AIulley saw mills the saw can be attached
the upper end of the pitmau irons, regulated b
SET screws, or b. usngthe usual clamp or penIan
: The above Improvements are being made at a
the principal machine shops in St. Louis.
Persons wishing TO make the change can hay
irons manufactured to suit the situation of t
mill in which they are to be used.
, EsJ' For County or Individual Rights addres,
M. ENGLISH,
Dec. IS, 1896. Glasgow.