The Spanish Fork press. [volume] (Spanish Fork, Utah) 1902-current, 1910-07-14

from the VapUr CONDENSER, SiNeS INC eNoS'
amount absorbed by the timber, which is al
wave weighed before and after treatment
further means of calculating the oil absorbed.
In a small cylinder the preservative may be
applied at pressure of 500 pounds per square
inch for smaller specimens and the resulting
protection can be compared with that of the
lower pressure preservatives.
Open tanks are provided for tests OF pre-
servatives that do not require pressure. These
are heated with steam coils and an iron cage
hung above let's the railroad ties or other
timbers down into the hot Oil By trolley
Arrangement the cage can be lifted and run
across to other tanks filled with cold OIL, SO
that 1t is not necessary to pump out the not
oil and replace it with the cold, as In zap
oratores where there is but one set OF tanks
All about the inner walls of the preserva
tives laboratory are ranged shelves to accom-
modate the samples of wood for treatment aud
those already submitted to the different forms
of protection against rot and other attacks.
What woods will best stand various kinds
of strain In bridges buildings and different
structures will be determined In the timber
testing laboratory, where two seven-horse'
uower motors furnish the electric current to
run the machinery
In the torsion machine tmbers can be
twisted until the strain reaches 10000 1nch-
pounds Five Universal" testing machines
provided 10 test lne strength vi uihciSh'
woods under slow pressure one having ca
pacity of 100000 pounds, another twice that
and three other smaller ones 10000 pounds.
To see what sudden strains oak, pine,
mamie and different woods will Withstand a
Hatt-TuIner impact machine was built In the
machine shops of the Purdue university ana
sent to the forestry laboratory for expert
ments 1t can be gagged that the hammers
ranging in weight from so to $50 pounds, can
baioI IN ely fppt
the beam or block of wood, exerting sudden
pressure of hundreds of pounds.
In laboratory where much machinery
ia in constant use there must be facilities foi
instant repairs For this purpose one END OF
the laboratory is fitted up into machine
shop Here, too much labor is saved by use
of electricity to run the engine lathe, milling
machine and other necessary apparatus. BE
side the anvil there Is gas forge ior heatihs
and tempering steel
The equipment of the wood shop, wher
tmbers and samples of wood are TO be pre-
pared for tests. is very complete
Steam heated ovens for drying wood, !
order to test the shrinkage, warping tender
cies and water content of different woods ar
part OF the laboratory equipment, and pc
ton has also been set off for a seasonin
room.
In this connection. in another laborator
. 49,
conductivity of different woods, to assist
the work of the kiln drying and preservin
tests.
Stumps and other resinous portions of II
trees now burned trash will be put In
stills and retorts aud the turpentine, tar al
gases will be extracted, carried off, separate
q and refined into the various commercial pro
. ucts. If methods of doing this economical
can be fixed upon, the problem of utiizil
much of the big pine trees now wasted W
. be solved.
o All OF the many chemical tests made nec'
q sary by the work of the different departmer
r. will be centered In a big chemistry laborato
d on the second floor. where eight large W
% dows on the east and south furnish admiral
4 light. and eight stone tables, besides the
d running all about the room beneath the W