Improvements in Lubricators.
Year: 1893

page_text: Date of Application, 28th Apr., 1893-Accepted, 8th July, 1893
COMILIE DI PITICATION.
Improvements in Lubricators.
We, RICHARD BOMBE, of 27 Schlegelstrasse, Electrical Engineer and FERDINAND
SCHUCHHARDT, of 9 Wassergasse, Manufacturer, both of Berlin, Germany, 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 self acting lubricators, and it has mainly for its object
to so construct the lubricator and the parts connected therewith that the various
bearings of a machine may be lubricated from one central point. The lubricator is
also so arranged that with machines working intermittently, it can be started and
stopped synchronously with the starting and stopping of the machine.
And in order that our said invention may be properly understood, we have here-
unto appended three explanatory sheets of drawings, whereon:-
Fig. 1. is a vertical section of the apparatus, and showing it connected to a
governor.
Fig. 2. shows a modification of part of the apparatus.
Figs. 3 and 4 are plan views of the oil distribution discs.
Figs. 5, 6, 7 and 8, show modifications of the apparatus.
bears
The apparatus consists of an oil cup or vessel a, which is closed, on top, by a
cover d'. Screwed into the bottom of the vessel a is a tube h, in which is fitted a
spring i. The lower end 6' of the spring is passed through a hole in the tube h,
whilst the upper end is connected, at s, to a chain k, which passes over a pulley
fitted on the cross shaft w, which is carried in the forked end (see Fig. 7) of the
spindle of the cone valve d, and from thence over a second guide pulley to the
collar of the governor to which it is attached. Fitted also on the shaft w¹ is a
cam wheel
g, which is firmly connected to the pulley r. The cam wheel
upon the friction roller fitted on a pin secured in tube h. The piece c, having
the central hole or drip channel c' in it, is screwed into the bottom of tube h, and
serves as the seat of the valve d. The lid dis dished, as shown, and is provided
with openings o, o, covered over on the interior surface, with fine wire gauze, as shown
in dotted lines. When oil is poured into the central depression of the lid d', it
flows through the openings o and wire gauze, into the interior of the vessel a, and,
in its passage, it is filtered free of any dirt, metal filings, and the like. The tube h.
has, at its lower end, openings o¹, o', through which oil passes to the drip channel c¹
of the valve seat.
When the machine is started the spindle w of the governor is rotated and the
governor balls
9 move upwards taking with them the collar h. The upward move-
ment of the collar pulls the chain in the direction of the arrow and turns the
cam 9 also in the direction of the arrow. As a consequence of the shape of the
cam and the fact that it bears upon the roller it, when turned in the direction of
the arrow, is, along with its shaft w, raised up. The rising of the shaft w pulls up
the spindle and opens the valve d. It will be therefore seen that the greater the
speed of the governor the more the cam g. will be turned round in the direction of
the arrow and the further will valve d be raised up off its seat so as to supply
more oil.
When the speed of the governor slackens, the spring i pulls up the slack chain k',
caused by the falling of the collar h¹, and, in so doing, turns the cam in the reverse
direction, with the result that the valve is gradually shut.
When the governor
ceases to rotate the cone d closes or shuts the opening c¹ and prevents further
supply of oil to the bearings.
The cup a is screwed into the hollow bulb s', which has an opening or window g¹

page_text: in it, covered or not with glass, as desired. The oil, as it drips down through the
channel c', can be seen through the window g¹. In order to render the drips more
easily visible, a wheel F, having a number vanés or blades, is provided. The oil
drips upon the vanes of the wheel and rotates it. Consequently, as long as the
wheel rotates, it indicates that the oil is dripping. Instead of using the wheel F,
the device shown in dotted lines at Fig. 2. may be employed. This device consists
of a spoon or cup F1, which is attached to the short end of the lever h², fulcrumed
n is a counter balance weight. The oil from the drip channel e falls into
the cup F, and when it has accumulated therein until it fills the cup, the weight of
the cup and contained oil overcomes the balance weight with the result that the
cups fall down and the oil runs out of it. By adjusting the weight n. the outflow
of oil from the cup may be regulated.
at ¹.
C
When this appliance has to be used for lubricating a number of bearings, the
following arrangement has to be adopted ;-On the spindle W of the governor
(Fig. 1) is fitted, at its lower end, a small cog wheel z which gears with a large cog
wheel Z, carried on the axle w¹. The cog wheel Z has, on its upper side, a number
of spoon-shaped cavities L', L, L, LA, L, L, L', L, L, (see Fig. 3,) arranged
like a fan in it. Holes 11, 12, 13, 14, 15, 16, 17, 1º, are made in the spoons, and these
holes are so arranged as shown in Fig. 3, that a line drawn through them would be
volute in form. Firmly secured below the cog wheel Z is a body K, see Fig. 4,
which has a number of concentric grooves K' in it. The grooves correspond with
the holes 13 14 15 16 17 1°, so that, when the oil drops through said holes, it runs
into the corresponding grooves K' below. From the grooves, small tubes ¹, etc.,
are led to the bearings to be lubricated. With this arrangement, when the vertical
spindle W of the governor is put in motion by the turning of the horizontal shaft A,
it, by means of the cog wheels, rotates the spoon disc-wheel Z, and the oil drips
fall from the channel c¹ of the cup a down into the spoons L¹ etc. as they rotate.
As the motion of the disc is uniform, it follows that each of the spoons must, in its
turn, receive a regular supply of oil. The oil from the spoons flows through the
pipes etc. to the several bearings. With this arrangement, a number of bearings
may be lubricated with oil from a single lubricator.
In very large or extensive plants of machinery, it is not possible to supply the
several bearings with oil from a single oil vessel. In this case, several governors
and oil vessels must be used and they may be driven either mechanically, by means
of cog wheels or belting or by means of small electric motors.
Figs. 5, 6, 7 and 8 show lubricators which are adjustable by hand.
In these views the cam g is shown as provided with a small handle k. The edge
of the cam has a large number of recesses, say 30 to 50, in it (see Fig. 7). The
pin which is fitted, in Fig. 5, on a cross-bar secured to a nipple inserted in
tube . The spring i, in this fig., bears against the back of the cone d and the
nipple so that the cone is normally pressed down. In Figs. 6 and 7 two springs i',
connected at their upper ends to the axle w of cam g, and, at their lower ends, to a
cross-bar w³, which is held in place by bayonet slots cut in the tube h, enters one or
other of these recesses and locks the cam in position. As the cam is of unequal
diameter, as shown, it follows that, by turning it in one direction or the other, the
spindle is raised up or forced down, so as to open to a greater or less extent the
cone valve d. By turning the handle to the left, the feed of oil is decreased,
whilst by turning it to right, it is increased. Before the wheel can be turned, how-
ever, it is necessary to pull it up against the action of the retaining springs i¹, 80-as
to clear the pin c.
Fig. 8 shows lubricator with extension b with sight slot 7 in it.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we declare that what we
claim is :-
1. A lubricator having a volved anindle fanning
سفم
+
4
and impone

page_text: machine, substantially as hereinbefore described and shown on the drawings
annexed.
2. In lubricating apparatus, a disc wheel Z having cavities (L' &c.) into which
the oil falls, the oil being delivered from the cavities into concentric grooves on the
underside of the wheel, and thence by tubes or equivalent to the parts to be
lubricated, substantially as herein before described and shown at Figs. 1, 3, and 4 of
the drawings annexed.
3. In lubricators, a wheel F (Fig. 1) on which the oil drips and sets it in
motion, substantially as hereinbefore described with reference to the drawings
annexed.
4. The indicating device (F) substantially as hereinbefore described and shown
at Fig. 2. of the drawings annexed.
5. The modified constructions of the lubricating apparatus substantially as
hereinbefore described and shown at Figs. 5, 6, 7 and 8, of the annexed drawings.
Dated this 22nd day of Anril 1893
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.