IMPROVEMENTS IN LUBRICATORS
Year: 1884

page_text: I, DANIEL SUGDEN of 14 John Street Denholme in the County of York Engineer,
do bereby declare the nature of my invention for IMPROVEMENTS IN 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 relates to certain improvements in the method of and apparatus
for lubricating cylinders, pistons, and valves of steam or other engines; and has for
its object the insuranco of a regular supply of oil to the surfaces of such cylinders,
pistons and valves; and consists in constructing an air tight vessel of cylindrical
form, fitted with a plunger which can be raised or lowered by hand, but when in
ordinary use lubricating the surfaces, mado to descend upon the oil by a ratchet
wheel working in connection with a worm and worm wheel, the latter being mounted
loose upon the plunger screw spindle, and prepared with claws which fit into
corresponding claws on the boss of the handle secured to the top of the plunger
screw. These claws are kept in contact by a spring, and on the worm wheel
revolving, the screw causes the plunger to descend and force the oil through the
check valve and outlet pipes; and in order to prevent the breakage of the apparatus
when the plunger is near the bottom of the vessel, I secure two rods to a collar in
connection with the worin wheel which terminate at the bottom with heads inside
the plunger, and when the plunger is at the regulated distance from the bottom, a cross
bar secured thereto comes in contact with the heads, drawing down the rods and the
claws of the worm wheel clear of the claws of the handle, by which means the ratchet
wheel and worm wheel can continue to revolvo leaving the plunger stationary.
In order that my invention may be better understood, I will further describe
the same by aid of the accompanying drawings in which Figs 1 and 2 represent
the side elevations of my improved lubricator, the former shewing the filling side,
and the latter the delivery pipes. Fig 3 is a vertical section cut through the
apparatus near the centre, and Fig 4 is a sectional detail of the worm wheel and
spring for keeping the claws in gear.
The cylinder is indicated by the letter A, and is packed in the stuffing box B;
the oil for lubricating is filled into the cylinder through cup and tap C, and the
outlet pipe D is placed on the opposite side of the apparatus and furnished with an
ordinary back pressure valve E to prevent vacuum drawing the oil out of the vessel.
The plunger F is lowered by means of screw G and can be raised or lowered by
hand, but when in ordinary use, it is made to descend upon the oil in the cylinder
by the reciprocating lever H acting through the pawl P upon the ratchet wheel J

page_text: which is secured upon the same shaft as the worm J¹, the latter gearing with the
worm wheel J' which is mounted loose upon the screw spindle G. The upper boss of
the worm wheel is prepared with claws K similar to an ordinary claw coupling,
which fit into corresponding claws K' cut in the boss of the handle L, which is
secured to the said screw spindle, and when in gear with each other, the revolving
worm wheel J' turns the screw G, thereby causing the plunger to descend and
displace the oil.
The claws of the worm wheel J' are kept in gear with the claws K₁ of the
handle, by means of spiral spring S in the box of cross bar M, which is carried by
two pillars N secured to the top flange of cylinder, and in order to prevent the
continued descent of the plunger and consequent breakage of the apparatus when
the plunger is near to the bottom of the cylinder, I secure two side rods R one on
each side of the screw G, the top of each rod is secured to the flange or clip
collar T which fits into the recess formed in the bottom boss of worm wheel J', the
opposite ends of the rods inside the plunger are provided with heads R', and when
the plunger F descends with the cross bar S₁ which is secured to the plunger,
the said cross bar comes in contact with the rod heads R'; the two rods are
then drawn down and with them the worm wheel Ja, until the claws K and K¹
are out of gear with each other, when the plunger will stop in its descent and the
worm wheel continue to revolve.
By means of the handle L the plunger is raised, the worm wheel being held
down by hand or a catch so that the claws K and K' are clear until the plunger is
raised to the top, when the cylinder is filled with oil; the worm wheel is then
liberated and the pawl P on reciprocating lever H put in gear, when the
plunger begins to descend and displace the oil forcing it through the outlet pipes
and check or back pressure valve E, against any pressure of steam with regularity
and certainty to the surfaces required to be lubricated.
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
A lubricator fitted with plunger F and screw G actuated by a worm wheel
prepared with claws K which engage with claws K' on the handle and which are
disengaged by rods R before the plunger reaches the bottom of the cylinder A
all arranged substantially in the manner described and as illustrated by the
accompanying drawings.
WAUGH & CHAPMAN,
Agents for the Applicant.