Year: 1888

page_text: We, FREDFRICK WILLIAM DURHAM, of No 27 Leulenhall Street, in the City of
London, Engineer, and THOMAS HEARY SHAW of Otley Road, Brudford, in the
County of York, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement
This invention relates to appa tus for lubriciting a number of bearings, is, for
eximple those of the various shifts on the different floors of mill or factory, thus
apparitus being arr inged so as to deliver oil only when the machinery is at work,
and only to such of the benings is it may be desired to lubricate
For this purpose, we fix it level above the highest of the bearings to be lubricated,
an oil tank supplied by ball cock from a higher reservoir or by a centrifugil or
other pump from reservoir below In this tank a roller immersed to a certain
depth in the oil is caused to revolve by belt or ge ring from some neighbouring
shaft Against the periphery of this roller, above the oil in the tank, bear tangentially
a number of inclined scrapers arranged side by side Each of these scrapers has a
narrowed end projecting immediately over the funnel mouth of a pipe leading to one
or several of the bearings to be lubricated
When the machinery is in motion, the roller in the oil tank revolves, carrying oil
on its surface to the scrapers by which oil is delivered to the pipes leading to the
bearings When it is desired to stop the supply to any of these pipes it is only
necessary to move the scraper leading to it out of contact with the roller and in
order that this may be readily done, the scrapers, instead of being fixed in position,
may be hinged to some convenient part of the tank When the machinery is not
going, the roller remains at rest and the scrapers cease to deliver oil
The oil, after lubricating tach bearing, may be collected in a tray and led by a pipe
or pipes to a reservoir below the lowest bearing whence it may be pumped up to the
tank or feed reservoir above, being preferably passed through a filter on its way, so
that it may be cleared from impurities before flowing again to the bearings
tank should have an overflow pipo leading to the low reservoir, and branches from
thus pipe may collect the waste oil from the several bearings
The

page_text: The accompanying drawing shews a perspective view of lubricating apparatus
constructed according to our above described invention, arranged in connection with
a number of shafts to be lubricated A is the oil tank situated above the highest of
the shafts to be lubricated, and containing a roller B dipping into the oil and
receiving motion either by a belt and suitable gearing from the top shaft to be
lubricated, or in any other suitable manner In contact with the upper part of the
roller B which is above the oil level are a number of scrapers C of a trough shape
which gather up the oil carried up by the roller and deliver it into cups D on the
upper ends of pipes E which conduct the oil on to the bearings of the shafting to be
lubricated
When there are a number of shafts below each other on the different floors, these
may either each be fed by one of the pipes E, or, as shewn on the drawing, only the
uppermost shaft may be so fed with an excess of oil the surplus being collected in
the drop tins F and conveyed through pipes G to the bearings below
The surplus oil passing away from the lowest bearings Hows into a tank H, from
which it is then raised by a centrifugal pump J and pipe K into any suitable
strainers Labove the tank A from which it then flows into the tank, this is provided
with an overflow pipe M discharging into the lower tank H for maintaining a constant
oil level in the tank A
The scrapers C are mounted on a spindle N so that they can be turned separately
thereon, and being thus moved out of contact with the roller, the supply of oil to the
respective bearings is stopped
Having now particularly described and ascertained the nature of this invention
and in what manner the same
19 to be performed we declare that what we
claim is
-
1 In apparatus for lubricating bearings, the use of a revolving roller partially
immersed in oil muntained at a constant level in an elevated tank, in contact
with which roller are moveable scrapers that take up the oil carried round by the
roller and deliver it into pipes leading to the several bearings to be lubricated,
substantially as herein described
2 In combination with lubricating apparatus such as is referred to in the
preceding claim, the use of a receptacle for receiving the sun plus oil from the
shaft bearings, a pump for raising the oil from the said recepticle, and strainors
or filters whence the oil flows back into the upper tank, substantially as herein
described