Year: 1886

page_text: Date of Application, 7th Aug., 1886.
Complete Left, 23rd Dec., 1886.
Complete Accepted, 25th Jan., 1887.
I, MAX FALK, Merchant, of Darmstadt in the Grand-duchy of Hesse Darmstadt
(Germany) do hereby declare the nature of this invention to be as follows :—
According to enclosed design this lubricator is formed by a hollow cylinder A, with
a flat screw-thread on its outside, E is the screw for fixing the apparatus on the
bearings. The interior of the cylinder is polished and filled with consistent grease, a
piston B of leather or India rubber is fixed to a spring CC, forming two double
curved arms, the ends of which catch in the thread on the outside of the cylinder. It
results, that by revolving the spring, at same time the piston gets down and presses
the grease into the bearings.
I, MAX FALK Merchant of Darmstadt in the Grand-duchy of Hesse Darmstadt
Gerinany do hereby declare the nature of this invention and in what manner the
5 same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention will be best understood by reference to the accompany drawings, in
which Figures 1 and 2 represent different side elevations of my invention, Figure 3
a cantion tha sof and Rimies & a nlan

page_text: The lubricator consists of a cylindrical cup such as A bored smooth internally and
having a rough screw thread A¹ externally. At the bottom of the cup is a neck B
through which is formed the opening E for the passage of the grease the said neck
being threaded externally so that it may be screwed into the journal or bearing.
Within the cylinder is a piston C composed of two metal discs c between which is com-
pressed a disc or washer of softer material such as leather india-rubber or other similar
substance. To the piston is attached a spring or equivalent having two branches D
and D¹ which are turned downwards over the outside of the cup and may terminate in
hooks or catches d d so as to engage with the thread of the screw. The cylinder
having been filled with grease or other lubricant of similar consistency the piston is
placed within the mouth thereof and the spring catches d and d¹ caused to engage
with the thread of the screw. By turning the springs or equivalent round in the
proper direction the piston will be forced into the cylinder compressing the grease and
forcing it through the neck B onto the shaft or other part to be lubricated. The
difference in diameter between the passage through the neck B and the cylinder being
considerable only a slight turn of the piston springs is necessary to force out the
requisite amount of grease. Other advantages possessed by my invention are the
readiness with which the grease may be fed, a rod with a hook at the end enabling
the attendant to turn the spring when out of reach thus dispensing with the use of a
ladder whilst the
remaining in the exposition of the spring at once indicates the quantity of grease
cylinder.
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 :
1. In a lubricator a cylindrical cup such as A to contain the lubricant and having
an external screw thread such as A' substantially as specified.
2. The combination with threaded cup such as A and piston B of means such as the
springs D D engaging with screw thread A' for effecting the descent of the piston
substantially as specified and illustrated in the accompanying drawings.
3. In a lubricator a spring or equivalent such as D Di connected to the piston and
engaging with the thread A² of the cup A substantially in the manner and for the
purpose specified.