New-York tribune., 1907-09-15
PERFECT AND FACILE LUBRICATIoN

The rapfl doyelorrnent Of tho locomotive engine
WAS naturally followed by Improvements I'm the
arrangements for oIlus its valves and cylinders
The ordinary hand o!'er placed ON each cylinder
and recurring the engine men to set down from
the cab 10 hl and start. soon gave way to
that placed tho cab OF the engine. and readily nc
ccssihe 10 tha operator. and from which the oil
was carried down 1-termiti"DtiT to tHa cylinder hF
steam that Is nheuc.cr steam was shut of from
tn" cylinders and the engine was running down Il
grade by it's wpmcn;IW Tn" Gao oiler Was f"i-
lowed los the seif-artuc lIhricator. Introduced by
the firm ol Nathan 4 Dire fus. the predecessors or
tho above mentioned company: this placed On
top or the steam chest Of each cylinder. and auto
naura'Iv fed the al 70 the cylinders IS long as
there was steam therein But Il stll required the
ergInr-roen 20 leave the cab. and 70 down 10
tho cylinders for filling and regulating tire iuhri-
ca;or-ns far as these carly devices admitted % any
regulation
quite early in the development Of rsilroadng tho
demand for n more uniform well for more
economical ubrcation of the valves and cylinders
or locomotive engines became prevalent: and count
less are the patents issued to inventors VINO had
tie attaining - that object In view.
Prominent among these are tho patents Of Nioho-
las Sclhsrt. a california engineer for T." hydro
static displacement lubricator and for what is
termed the equalization OF prcssurcs In locomotive
IuDrleators. and that Of John Gates, for the in
rcntton oc slght-fced- water filled glass vessel IN
which the oil can he observed II passes. drop by
drop from the lulriCator To the parts To he oiled
on these three patents are based ell siGht-f"od lu
bricaors. whether for locomotives or for stationary
engines and whatever followed after these
based upon tie development Of details To increase
the efficiency and reliability Of the HhricItDr under
the rapidly changing conditions brought about by
development Of the locomotive engine itself.
As far as safety appliance interests I'm Connoc-
tion with ubr!cators are concerned. the glasses
forming the sisEt-fccd Of the !ubricator $50 tie
features that oal for particular tousidcrn on and
much that said concerning the water gauge
glass equally applies to that of the lubricator And
more because tho lubricators, according TO
the number Of feeds and number of parts 10 he
oiled contain IN a single body from three 10 six
glasses. any and all OF which are liable - break
With the use Of rapidly increasing boiler pressure
which to-day a. TIl,1 is 200 pounds per sluar"
inch the breaking Of the glasses in the .Ubricaor
was Of such frequency, and tho resulting accidents
became so numerous and so iutoerahle, that rad
cal change i'm the construction of tho u"ft"at"r. as
n whole and I'm the form Of the glass, had 70 take
place Guards for tho prevention Of accidents were
of no avail: they had to lie made easily removable
g., order to make the glasses accessible Tor rNlluva
and tho result was that they were put aside per
manently bv the opera tors. as they obstucted their
ready ohseryation of the feed in the same manner
as those of the wafer gauge interfered with the
urouor ascertaiunent of the water level
The radical change WIS effected about tIreo or
four years ago. only by the introduction Of what IS
known in the art as a Bulls Eve Lubri rator in
this the tubular glasses replaced by heavy glass
discs which will break readily as the former,
and when they do break. do not fly about. but re
main irnbeddcd In their castings, that this type.
in SO far as Injuries from broken and flying glass
ara concerned may be said to he absolutely safe.
Railroad arrangements readily accepted this I'M
movement and to-day any other than Bulls Eye
lbrIcators are very rarely used in spite of the fact
that these glasses not hold out as long as tho
tubular and require more frequent removals, not
on account of brcakago but on account of the wear
which results from the composition OF the glass.
the feature which insures it's efficiency against
br-al<agc.
This lubriCatOr IS manufactured in this Coun-
trv nv two or three firms. the bulk of the de
mand being supplied by the Nathan Manufacturing
COMPANY The principal point Of difference be
tween IT'S make and that of others IS that its glasses
are paced In structure below the oil reservoir, and
as result cannot become affected by the heat
as much as would otherwise be the case; there
fore they last longer. with the result that the cfi
cheney and safety of the appliance is increased,
with no greater outlay for first instalment, and
at n reduced cost for maintenance No foreign
makes of this type of lubricator used In this
country. This company makes all the parts of this
nbrICator excepting the glasses. the rubber pack
ing for them and the iron operating the handles,
all of which however are of domestic manufacture.
This lubrcator is manufactured under two or three
patents which still alive; number of other
patents for the development of details. have ex-
nired however