Year: 1887

page_text: Date of Application, 10th Dec., 1887
Specification Accepted, 20th Jan., 1888
1, JOSEPH MAURO VANZINI of Milan in the Kingdom of Italy, Manufacturer, do
hereby declare the nature of my 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 lubricators for journal bearings and its object is a regular
and economical lubrication of said bearings during the rotation of the journal.
The improved lubricator is shown in the annexed drawings, in which Fig. 1 is a
vertical central section of the lubricator. Fig. 3 an elevation thereof. Fig. 2 a
central horizontal section. Fig. 4 a plan.
The reservoir or box A containing the chamber D for reception of the oil is fixed
in the most suitable way on the bearing and has a screw down cover B having a hole
or perforation closed with a stopper C of india-rubber or any other material provided
that it fits hermetically in said hole.
In the chamber D rises a pipe which may be made in one piece with the box A.
This pipe is open below to the journal and finishes above in a spherical head a, care-
fully turned inside and outside. In the middle of this head a small almost
imperceptible cylindrical hole is made, having a very small diameter, preferably not
exceeding the fifth part of a millimeter. This hole serves to connect the oil reservoir D
with the lubricating pipe .
Before fixing this self acting lubricator on a bearing some oil should be placed in it,
a little being poured out upon the bearing itself. When the apparatus is fixed in its
place the oil-box should be filled up to about one centimeter below the spherical head
of the oil pipe a suitable packing may then be put between the edge of the box A and
the cover B and the apparatus hermetically closed. The apparatus prepared in this
way will serve for 3 to 4 months and the sliding cover has only to be taken off in
order to clean the inside of the oil-box from residues or impurities of the oil which
may adhere to it. The oil used, be it of vegetable or mineral quality should always
be very pure and limpid.
This lubricator more especially applicable to locomotive and marine engines or to
such machinery as subjected to movement,

page_text: Having ascertained the number of miles which a locomotive can traverse with such
a filled self-acting lubricator and taking care every time it has to be taken off and
newly put on, that the stopper (shuts hermetically, there will be no necessity to
superintend the quantity of oil contained in the oil-box until this number of miles is
about completed.
After a few revolutions, necessary to produce a vacuum in the pipe b, the oil, more
or less violently shaken, passes over the spherical head on the top of the oil pipe b
and the small hole o, and imperceptibly, but continually runs down in the oil pipe to
the journal. This movement is produced by the vacuum in the oil pipe caused by the
rotatory movement of the journal in the bearing. The oiling ceases each time, when
the movement of the shaft is stopped in the bearing.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
A lubricator for bearings of journals and the like comprising in combination an oil-
reservoir adapted to be hermetically closed, a pipe rising in said oil-reservoir, said
pipe communicating therewith at its upper end through a hole of small diameter,
substantially as and for the purpose set forth.
()
Dated this 10th day of December 1887.
J. M. VANZINI.
By Herbert & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents to Applicant.