IM- PROVEMENTS IN LUBRICATORS
Year: 1878

page_text: LETTERS PATENT to James Lumb and John Haigh, both of Elland, in the
County of York, Brass Founders and Finishers, for the Invention of "IM-
PROVEMENTS IN LUBRICATORS."
Sealed the 17th June 1879, and dated the 20th December 1878.
PROVISIONAL SPECIFICATION left by the said James Lumb and John
Haigh at the Office of the Commissioners of Patents on the 20th December
1878.
JAMES LUMB and JOHN HAIGH, both of Elland, in the County of York, Brass
Founders and Finishers. "IMPROVEMENTS IN LUBRICATORS."
This Invention relates to improved apparatus for supplying lubrication to steam
cylinders, shafting, and other contrivances requiring lubrication.
Apparatus for supplying lubrication to the cylinder or cylinders or valve box of
steam engines, constructed according to this our Invention, comprise a tallow or oil
cup having central inverted plug worked by ratchet and pawl. From the extremity
of the plug is a finger, which as the plug is caused to rotate gives a like motion to
a plug or hollow spindle contained in a cap screwed to the lower part of the lubri-
cator; the bottom of this said cap is perforated, the hole communicating with the
hollow spindle referred to. As the latter revolves an arm or finger connected
therewith is brought in contact with an eccentric piece or lug connected to the
barrel, and the arm or finger and hollow plug or spindle are forced down, allowing
a certain amount of lubrication to escape to the cylinder or to the valve box.
When the finger is past the eccentric or lug the plug or hollow spindle is by a
spiral spring raised again, so as to shutt off further discharge of lubricant until
another revolution of the main or first mentioned inverted plug.

page_text: For the purpose of discharging the steam from the interior of the cap there is
a small pipe, one end being within the cap, the other end terminating above the level
of the tallow or oil contained in the main cup or body of the lubricator, the upper
end of this pipe contains a drop valve, which when the steam is within the cap is
thereby held firmly up to its seating. The valve is forced down when the discharge
of lubrication is cut off and the steam allowed to escape by means of a "swell
upon the worm wheel acting upon the spindle of the drop valve, forcing the latter
open. When the apparatus above described is to be used for lubricating shafting
and other like uses, and steam is absent, the discharge pipe and drop valve above
referred to are not necessary, but a hole or air passage way is bored through the
main and minor plugs.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Lumb and John Haigh in the Great Seal Patent Office on
the 19th June 1879.
JAMES LUMB and JOHN HAIGH, both of Elland, in the County of York, Brass
Founders and Finishers. "IMPROVEMENTS IN LUBRICATORS."
This Invention relates to improved apparatus for supplying lubrication to steam
cylinders, shafting, and other contrivances requiring lubrication.
Apparatus for supplying lubrication to the cylinder or cylinders or valve box of
.steam engines, constructed according to this our Invention, comprise a tallow or oil
cup having central inverted plug worked by ratchet and pawl. From the extremity
of the plug is a finger, which as the plug is caused to rotate by the ratchet gives a
like motion to a plug or hollow spindle contained in a cap screwed to the lower
part of the lubricator; the bottom of this said cap is perforated, the hole commu-
nicating with the hollow spindle referred to. As the spindle revolves an arm or
finger connected therewith comes in contact with an eccentric piece or lug con-
nected to the barrel, and the arm or finger and hollow plug or spindle are forced
down, allowing a certain amount of lubrication to escape to the cylinder or to the
valve box.
When the finger is past the eccentric or lug the plug or hollow spindle is by a
spiral spring raised again, so as to shut off further discharge of lubricant until
another revolution of the main or first mentioned inverted plug...
For the purpose of discharging the steam from the interior of the cap there is
a small pipe, one end being within the cap the other end terminating above the
level of the tallow or oil contained in the main cup or body of the lubricator. The
upper end of this pipe contains a drop valve, which when the steam is within the
cap is thereby held firmly up to its seating. The valve is forced down when the
discharge of lubrication is cut off, and the steam allowed to escape by means of a
"swell" upon the worm wheel acting upon the spindle of the drop valve, forcing
the latter open.
When the apparatus above described is to be used for lubricating shafting and
other like uses, and steam is absent, the discharge pipe and drop valve above
referred to are not necessary, but a hole or air passage is bored through the main
and minor plugs.
Such being the nature and object of this our said Invention we will now proceed
to describe the same in detail; and in order that the same may be distinctly
understood we have hereunto annexed a Sheet of Drawings illustrative thereof,
and have marked the same with figures and letters of reference.
Fig. 1 is a vertical section of lubricator; Fig. 2 is a detail. At A is the cup or
lug of the apparatus containing the lubrication, which when the passage way B is
open, as shown, allows a quantity of lubrication to pass to the body of the hollow
plug at C. The plug now by means of the ratchet and pawl D revolves, shutting
off further supply of lubrication to the hollow of the plug at C.
When the plug by its revolution has brought the aperture E opposite the
opening F, the lubrication flows from the hollow plug C to the cavity G. The
lubrication from the cavity G passes to the hollow or grooved spindle H and thence
out by the valve H' being open to the cylinder of the engine. When the valve H¹
is being opened the finger J is by the projection K and the revolution of the plug
brought into contact with the eccentric or incline L, which forces down the
spindle H, opening the valve H₁, and as soon as the finger J is past the eccentric
or incline L the spiral spring M will raise the spindle H and valve H¹ again to

page_text: '
their seating. In order to admit of the escape of steam, which when the valve H¹
is open passes to the cavity G the pipe N is employed. The wheel P being provided
with incline R which acts upon the spindle S of the valve T, forcing the latter open
and permitting the escape of steam.
When next the valve H² is discharging lubrication steam will again enter the
cavity G and the valve T will close, steam being discharged again on next revo-
lution, as described. At 1 is a water space or jacketing for the circulation of cold
water, being supplied by the pipes Z for the purpose of cooling the lubricant
employed.
Having thus fully described the nature and particulars of this our Invention,
together with the manner in which the same is to be performed or carried into
practical effect, we would have it understood that we claim,-Firstly. The combina-
tion of the hollow or grooved spindle H, operated by finger J, projection K, and
incline L, substantially as illustrated and described.
Secondly. The combination of the pipe N, valve T, and spindle S, operated by
incline R, substantially as illustrated and described.
In witness whereof, we, the said James Lumb and John Haigh, have hereunto
set our hands and seals, this Fourteenth day of June, in the year One
thousand eight hundred and seventy nine.
Witness,
J. E. WALSH,
Mechanical Draughtsman to
Walter Brierley,
Patent Agent,
Halifax,
JAMES LUMB. (L.S.)
JOHN HAIGH. (LS.)