IMPROVE- MENTS IN SIGHT FEED AND OTHER LUBRICATORS to be as follows
Year: 1886

page_text: I JAMES LUMB, of Perseverance Brass Works, Elland, in the County of York,
Brass Founder, do hereby declare the nature of my said invention for "IMPROVE-
MENTS IN SIGHT FEED AND OTHER LUBRICATORS to be as follows :-
"
This invention consists of an improved construction of sight feed lubricator
operated by mechanical means and specially designed for dealing with solidified
oils and lubricants.
The apparatus comprises a main receiving vessel for the lubricant, above which
is a bridge piece, and through the latter is a screwed spindle operated by worm
wheel and worm, the latter receiving its motion from a pawl lever and rack as
ordinary The upper end of the said spindle carries a hand wheel, to the lower
end of the spindle is a piston and leather bucket which fit closely in the main
receiving vessel, or vessel containing the main supply of lubricant through the
bottom of the said vessel is the discharge or outlet in which is a square spindle
the upper end of which extends into the vessel, its lower and outer end terminates
in a button headed valve being held to its seating by a spiral spring on a spindle,
the lower end of which rests in a screw footstep extending to the outside of the
lubricator As the worm wheel slowly moves it turns the screwed spindle, the
piston and bucket being thus forced down and upon the lubricant which is
expelled by way of the discharge way or outlet, thence by a passage way to the
lower end of a vertical sight feed glass tube of small internal diameter up which
it passes into an overhead passage way at right angles to the sight tube and thence
by a vertical tube to another passage way and to the screwed cap or end by means
of which the lubricator is affixed to the cylinder or other appliance to be lubricated.
There is a plug spindle working through a stuffing box for purpose of effec-
tively cutting off back pressure and closing entrance of steam to the lubricator,
when being replenished or when from any cause the piston and bucket may have
been screwed out of the lubricator vessel, this is an additional precaution should
the spring and button headed valve fail to effectually close the entrance-Should
the worm work the piston and bucket to the bottom of the main containing vessel,
and the lever and pawl motion be continued, no parts will be broken because the
worm, worm wheel, piston and bucket will then all revolve.

page_text: To replenish the lubricator the hand wheel will be turned until the piston and
bucket are raised out of and above the main containing vessel, when the top of
the latter is open-As also when the piston and bucket approach the bottom of the
main supply vessel, a boss on the lower end of the spindle engages with the
squared spindle of the button headed spindle and turns the latter on its seating
thereby clearing it from any risk of lodgement of dust or other deposit.
For lubricating shafting, I employ an expanding spiral spring on the rod of the
piston instead of the screw operated by worm and pinion, and of course a sight
feed glass is not necessary.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Sight Feed and other Lubricators.
I, JAMES LUMB of Perseverance Brass Works, Elland, in the County of York,
Brass Founder, do hereby declare the nature of my invention for IMPROVEMENTS IN
SIGHT FEED, AND OTHER LUBRICATORS" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
This invention consists of an improved construction of sight feed lubricator
operated by mechanical means and specially designed for dealing with solidified
oils and lubricants.
The apparatus comprises a main receiving vessel for the lubricant, above which
is a bridge piece, and through the latter is a screwed spindle operated by worm
wheel and worm, the latter receiving. its motion from a pawl lever and rack as
ordinary.
upper
The upper end of the said spindle carries a hand wheel, to the lower end of the
spindle is a piston and leather bucket which fit closely in the main receiving
vessel, or vessel containing the main supply of lubricant; through the bottom of
the said vessel is the discharge or outlet in which is a square spindle, the
end of which extends into the vessel, its lower and outer end terminates in a
button headed valve being held to its seating by a spiral spring on a spindle,
the lower end of which rests in a screw footstep extending to the outside of the
lubricator.

page_text: As the worm wheel slowly moves it turns the screwed spindle, the piston and
bucket being thus forced down and upon the lubricant which is expelled by way of
the discharge way or outlet, thence by a passage way to the lower end of a vertical
sight feed glass tube of small internal diameter up which it passes into an
overhead passage way at right angles to the sight tube, and thence by a vertical
tube to another passage way and to the screwed cap or end, by means of which the
lubricator is affixed to the cylinder, or other appliance to be lubricated.
There is a valve spindle working through a stuffing box for purpose of effectively
cutting off back pressure and closing entrance of steam to the lubricator when
being replenished or when from any cause the piston and bucket may have been
screwed out of the lubricator vessel, this is an additional precaution should the
spring and button headed valve fail to effectually close the entrance.
Should the worm work the piston and bucket to the bottom of the main
containing vessel, and the lever and pawl motion be continued, no parts will be
broken, because the worm, worm wheel, piston and bucket will then all revolve.
To replenish the lubricator the hand wheel will be turned until the piston and
bucket are raised out of and above the main containing vessel when the top of the
latter is open. As also when the piston and bucket approach the bottom of the
main supply vessel, a boss on the lower end of the spindle engages with
the squared spindle of the button headed spindle, and turns the latter on its
seating, thereby clearing it from any risk of lodgement of dirt or other deposit.
Such being the nature and object of this my said Invention, I will now proceed
to describe the same more fully, reference being had to the accompanying drawing
forming a part of this Specification.
The improved apparatus comprises a main receiving vessel 1 for the lubricant,
above which is a bridge piece 2, and through the latter is a screwed spindle 3,
operated by worm wheel and worm 4, the latter receiving its motion from a pawl
lever 5 and ratchet 6 as ordinary. The upper end of the spindle 3 carries a hand
wheel 7, to the lower end of the spindle 3 is a piston and cup shaped leather
bucket 9 which fit closely in the main receiving vessel 1, or vessel containing the
main supply of lubricant, through the bottom of the said vessel is the discharge
or outlet in which is a square spindle 10, the upper end of which extends into the
vessel 1, its lower and outer end terminates in a button headed valve 11 being held
to its seating by a spiral spring 12 on a spindle 13, the lower end of which rests
in a screw footstep extending to the outside of the lubricator.
As the worm wheel 4 slowly moves it turns the screwed spindle 3, the piston 8
and bucket 9 being thus forced down and upon the lubricant in the vessel which is
expelled by way of the discharge way or outlet at 11, thence by a passage way 15
to the lower end of a vertical sight feed glass tube 16 of larger internal diameter
up which it passes in drops into an overhead passage way 17 at right angles to the
sight tube 16 and thence by a vertical tube 18 to another passage way 19 and to
the screwed cap or elbow end 20, by means of which the lubricator is affixed to
the cylinder or other appliance to be lubricated. There is a valve and spindle 21, 22
for purpose of effectively cutting off back pressure and closing entrance of steam
to the lubricator when being replenished or when from any cause the piston and
bucket may have been screwed out of the lubricator vessel, this is an additional
precaution should the spring and button headed valve 11 fail to effectually close
the entrance.
Should the worm work the piston and bucket to the bottom of the main
containing vessel 1, and the lever and pawl motion be continued, no parts will be
broken because the worm wheel, piston and bucket will then all revolve. The
boss of the wheel 7 comes in contact with and bears upon the head 4* of the worm
wheel 4 and all revolve together.
To replenish the lubricator the hand wheel 7 will be turned until the piston and
bucket are raised out of and above the main containing vessel 1, and when the
top of the latter is open. As also when the piston and bucket approach the
bottom of the main supply vessel 1, a boss 23 on the lower end of the spindle 3

page_text: engages with the squared spindle of the button headed spindle 10, and turns the
latter on its seating 11, thereby clearing it from any risk of lodgement of dirt or
other deposit.
The improved apparatus is applicable for lubrication of shafting, in such case the
sight feed tubes are not necessary, I am aware of Summers Patent N° 565984 and do
not claim anything therein contained.
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;
Firstly The construction, arrangement and combination of parts constituting the
lubricator as illustrated by drawings and herein fully described.
Secondly The piston having the part 23 for engaging with and operating the
spindle 10 and valve 11, all in combination and as described.
Thirdly The elongated boss 4, 4ª in combination with the wheel 7, screw 3
and vessel 1 for purpose of admitting the revolving or turning the piston and
valve when the latter is at the bottom of the vessel 1 as herein explained and as
such parts are fully described and illustrated by annexed drawings.
Dated this 17th day of November 1886.