The state rights democrat. [volume] (Albany, Linn County, Oregon) 1865-1900, 1885-01-23
MECHANICAL.


cut kinds to bs compared IN line lcross
the end Cf piecO Of plato glass sb1ut
twenty.four inches long, one end being
placed six or eight inches other than the
other, 10 fora an inclined plane. The
drops Of oil rsn down tbs smooli, nir-
facs IN race with each Dthe,. The
quality OF the oil for lubric.,ing pui.
poses Is shown by the distance travelled
and the trace left by the drer. Thus on
the Grst day, sperm oil vii br found
in the raar, but will in ;in- ovrrtske
the rest, and retain ia 80 y-r of motion
after the othor oils have i,ird np. A
lighi-bodied oil a,wa qnis:rv. like va
tsr hut also dries, whnrsas "aa: is
needed IL good holy. bat have ten
dency to gum, snd thia will I.stinc,ly
show upon the glasI
When leather belt has .esn ili0ht.
ly injured by rain or by bring wet in
any othsr manner,it should be dried 81
much az possible and LAPS that may
have started eau be f4E, ,sned ny little
cement, the composition 81 which, as
follows, is furnished hv the Page Belt
ing Company Equal proportions of
good glue and Prnssian gelatine dissol-
we'd in water, and cooked in Tin vessel
set into n larger ono contaibing water.
Do not allow the vessel contsining the
cement TO ret quite or the bIttom. IL
should be cooked until il is quite thick
and ropy il can then be worked into
the places where the lars arc started by
means or knife. The belt should then
he hammered until dry and = few pegs
may be used, which can he obtained
from any local shoemaker. Cut the
pegs off little from the surface or the
reversed side, and hammer them down
on e astiron, anvil or lApstone.
Signor B. Ricco, Of Palermo, makes
powerful magnet in thia manner He
rolls long band Of sheet iron around q
nuclcas Of soft iron, Insulating the diff.
ferent layers Of the band With oiled
paper. One pole is connected with the
nucleus,to which the interior extremity
OF the band is soldsrsd, and the other il
connected with the exterior extremity.
The current in trAvsraing the band
msgnetizes not only the nucleus, but
also each layer Of the band, which thus
plays the double part Of conductor and
m 'gt ciic substance, thereby condensine
tile lines Of force and producing s yrsar
concentration Of power. More thar
two years ago magnet substantial,
the same was constructed by q we'll
known chemist and expert in electricity
in the city of New York, description
Of ~hich wss withheld at tie time il
case II might interfere with the gran,
ing Of foreign patents for his invention
Lehnsr publishes the following for.
mnla for making liquid paste of glu,
from search and acid. Place five pound
Of potato starch in six pounds of wate
aud add one-quarter pound of pure nj
trio acid. Keep in a WARM place, stir
ring frequently for forty-eight hours
Then boil the mixture until it forms
thick and translucent substance. Di
lutte with water If necessary, aud 6lte
through thick cloth. At the sam
time another paste is made from suga
and gum arabic. Dissolve Eve pound
gum arabic and one pound of sugar i
five pounds Of water, and add on
ounce Of nitric acid, and heat to boi
ing Then mix the above with th
starch paste. The resultant paste
liquid, does not mould, and dries o
paper with gloss. 1t is useful f
labels, wrappers and fine boskbinder
use. Dry pocket glue is made (
twelve parts of glue and five parts {
sugar. The glue is boiled until entir'
dissolved, the sugar dissolved in II
hot glue and the mass evaporatsd unit
it haraens on cooling. The hard sui
stance dissOlves rapidly in lakewar
water, and is an excellent glue for us
on paper.