Improvements in Lubricators.
Year: 1890

page_text: Date of Application, 30th Oct., 1890-Accepted, 6th Dec., 1890
Improvements in Lubricators.
I, JOHANNES FLEISCHER of Frankfurt-on-the-Main in Germany, Engineer, do
hereby declare the nature of my invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the following
statement:
The object of my present invention is to provide a lubricator having the stopping
mechanism outside the oil vessel, so as to obviate the risk of its getting clogged, when
thick fluid or heavy lubricating oils are used, and further to simplify the construction
of the stopping device and arrange the same so as to be easily accessible in the case of
repairs.
I attain these objects by the device hereinafter described and illustrated in the
accompanying drawings in which
Fig. 1 is a vertical section through the middle of the lubricator.
Fig. 2 is a plan showing the stopping mechanism in action and the button or knob B
removed for the sake of greater clearness.
Fig. 3 is a plan showing the position of the stop, when the plunger is arrested.
Fig. is a detail view of the spindle.
A is
Referring to Fig. 1: G is the oil vessel which may be screwed into the part of
machinery in question, by means of the thread on its lower extension G¹ or in other
convenient manner attached to the same. The oil vessel G is provided with a cover D
having a projection D' on is upper surface provided with an internal thread.
the plunger having screw spindle S provided with holes or recesses ec arranged
vertically underneath each other in one, two, or more rows, down the spindle, which
fits in the internal thread in the cover D of the lubricator. The cover D is further
provided with a lug g, on its upper surface, forming a bearing for the spring stop or
catch. This catch extends horizontally through the lug g and the projection D' of
the cover, is provided with a collar and is adapted to snap into the holes or
recesses c c of the spindle, by means of the spring a arranged between the lug g
and
collar g'.
Besides a a second spring F is arranged on the cover, being attached to the collar gl
and arranged to give the catch, which has sufficient play in the lug g, a sideward
motion. B is the button or knob, by means of which the spindle S is turned and the
plunger A raised or lowered.
The device operates in the following manner, as soon as the knob B is turned round,
the plunger A is lowered and the lubricating material pressed out of the vessel. On
turning the spindle S, the catch b, which has a certain amount of lateral play in its
slit in the projection of the cover, glides in the screw thread of the spindle and as
soon as one of the orifices or recesses c comes round, will snap into the same arresting
the spindle. According to the number and position of the recesses the amount of oil
pressed out at each move of the same may be regulated. The oil vessel or reservoir
may be filled by simply removing the cover D and with it the plunger A.
It is obvious that a lubricator of this description will operate reliably, as the whole
stopping mechanism is arranged on the outside of the oil vessel and thus the risk of
the same getting clogged by the use of thick lubricating materials is obviated entirely.
Further the whole mechanism is of the greatest simplicity and the springs if worn out
may be very easily replaced, being arranged directly on the cover of the lubricator
and easily accessible. One of the greatest advantages of a device of this kind, is that
the catch holds the spindle so fast, that the further rotating of the same, owing to the
vibration of the machine or engine, to which the lubricator is attached, is rendered
impossible; an invenience frequently occurring with those lubricators which aro

page_text: arrested or stopped by means of a ratchet mounted on a leaf spring, which after having
been in use some time always gets weaker.
Having now particularly described and ascertained the nature of my said invention,
what claim and desire to secure by Letters Patent is :
In lubricators :
The combination of the screw-spindle S attached to the plunger A and fitting into
the internal screw thread of the cover D, said spindle being provided with the
recesses c c arranged as specified, with the spring catch horizontally mounted on
the cover D and operating under the influence of springs a and f in the manner and
for the purpose substantially as described.
Dated this 30th day of October 1890
E. EATON,
Agent for Applicant.