Improvements in or relating to Sight Feed Lubricators.
Year: 1899

page_text: Date of Application, 17th July, 1899
EL
2000
T
L
1000
PROVISIONAL SPECIFICATION.
Improvements in or relating to Sight Feed Lubricators.
I, JOHN JAMES ROYLE, of Dalham Works, Great Bridgewater Street, Man-
chester, Engineer, do hereby declare the nature of my said invention to be as
follows:-
My invention relates to what are known as sight feed lubricators for motive
power engines and has reference more particularly to the means of propelling
the oil through the sight feed glass and which is usually accomplished by a
head of water derived from the condensation of steam. To effect this more
perfectly I employ compressed air, derived from a hand pump, mounted within
or upon or in connection with a suitable receiver. The pump is so arranged
that it can pump either lubricant or air into the receiver until there is a quan-
tity of lubricant in such receiver with a pressure of air over it in excess of the
steam pressure in the steam main to be supplied. Connection is made by pipes
from the lower part of the receiver to the sight feed glass and the preponderance
of pressure in the receiver impells the lubricant through the glass to its desti-
nation. The usual regulating valve is fitted to the sight feed portion and a
main shut-off valve is provided near the receiver to shut off the feed without
disturbing the adjustment.
This form of sight feed apparatus is particularly applicable in the case of mul-
tiple sight feeds as any number of deliveries can be made from one central or
common receiver. This device is applicable to either the " upward drop" or
natural drop style of lubricator and may also be used for the general lubrication
of journals or other parts of machinery.
The apparatus may with advantage be fitted with gauge glass and pressure
gauge.
COMPLETE SPECIFICATION.
Improvements in or relating to Sight Feed Lubricators.
I, JOHN JAMES ROYLE, of Dalham Works, Gt. Bridgewater Street, Manchester,
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:-
My invention relates to what are known as sight feed lubricators for motive
power engines and has reference more particularly to the means of propelling
the oil through the sight feed glass and which is usually accomplished by a

page_text: head of water derived from the condensation of steam. To effect this more
perfectly I employ compressed air, derived from a hand pump mounted within
or upon or in connection with a suitable receiver. The pump is so arranged
that it can pump either lubricant or air into the receiver until there is a quan-
tity of lubricant in such receiver with a pressure of air over it in excess of the
steam pressure in the steam main to be supplied. Connection is made by pipes
from the lower part of the receiver to the sight feed glass and the preponderance
of pressure in the receiver impells the lubricant through the glass to its desti-
nation. The usual regulating valve is fitted to the sight feed portion and a
main shut-off valve is provided near the receiver to shut off the feed without
disturbing the adjustment.
This form of sight feed apparatus is particularly applicable in the case of mul-
tiple sight feeds as any number of deliveries can be made from one central or
common receiver.
This device is applicable to either the "upward drop" or natural drop style
of lubricator and may also be used for the general lubrication of journals or
other parts of machinery.
The apparatus may with advantage be fitted with gauge glass and pressure
gauge.
The accompanying drawings illustrate the invention in detail
Fig. 1 being a part exterior and part sectional elevation,
Fig. 2 an exterior plan and Fig. 3 a sectional plan on line a-b.
(A) is a strong metal receiver for holding the supply of lubricant to be fed to
the sight feed lubricator and (B) and (C) are the ram, and cylinder respectively
of a hand pump mounted in the lid or cover (D) of the receiver.
The lubricant finds its way in to the receiver through the holes (E) in the
cup (F) and with the ram in its highest position through lateral openings (G)
in the side of the pump cylinder. When sufficient lubricant is placed in the
receiver the ram (B) is worked up and down by the hand (or otherwise) and its
effect is to force air through the holes (G) into the interior of the receiver and
above the lubricant and with the said holes closed automatically by the flexible
sleeve (H) after each down stroke of the ram so puts a pressure on the lubricant.
The lubricant is fed to the sight feed lubricator through the pipe (I) con-
trolled by stop valve (J) hence with the pressure in the receiver in excess of the
main steam pressure in the cylinder or pipe to which the lubricant is to be fed
the lubricant is readily forced out of the receiver to its destination
By the addition of a series of pipes the lubricant may be fed to a series of
lubricators. The receiver may also be fitted with a pressure gauge and gauge
glass.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:―
1: In apparatus for supplying lubricant to sight-feed lubricators, a receiver
capable of holding a large supply of lubricant, a pump fitted to such receiver
and adapted to pump air into the said receiver for the purpose of creating a
pressure on the lubricant and forcing it through a sight-feed or other like lubri-
cator, as set forth.
2: The combination of parts herein described and illustrated on the accom-
panying drawings for the purpose set forth.
JOHN JAMES ROYLE.
By John G. Wilson & Co., Fels.I.P.A.,
55, Market Street, Manchester, Agents for the Applicant.