Improvements in Needle Lubricators.
Year: 1892

page_text: Date of Application, 7th July, 1892-Accepted, 20th Aug, 1892
COMPLETE SPECIFICATION.
[Communicated from abroad by SCHÄFFER AND BUDENBERG, of Buckau
Magdeburg, in the Kingdom of Prussia and German Empire, Engineers.]
Improvements in Needle Lubricators.
I, WILLIAM EDWIN HEYS of 70 Market Street, Manchester, in the County of
Lancaster, Patent Agent, 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 needle lubricators, and its objects are, firstly, to ensure
a positive feed or supply of oil to the journal or part to be lubricated, and,.
secondly, to enable the lubricator to be re-filled with lubricant with greater facility,.
when desired.
In a lubricator constructed according to these improvements, the needle has a
series of annular recesses or steps formed upon it, each recess tapering from the
bottom upwards towards the axis of the needle. By means of these recesses, the
oil meets with a greater resistance when the needle is moving downwards than
when it is moving in the contrary direction, and the oil is consequently forced.
downwards by a kind of pumping action with each movement of the needle.
When it is desired to provide facilities for refilling the lubricator without
removing it from its position, the lid or cover is made with an annular projection on
its under side, which fits into a corresponding annular recess formed on the upper
part of the lubricator. Oil collects in the annular recess, when the lubricator is in
use, forming an oil-seal or air-tight joint. To raise the cover and re-fill the
lubricator it is necessary only to introduce the end of the spout of the oil can, and
pour the oil into the lubricator. On the withdrawal of the spout, the cover closes
automatically. This automatic closing cover is not adapted to be employed in-
lubricators used on cranks, loose pulleys, and similar moving lubricators.
The accompanying drawings illustrate in what manner this invention may be
carried into practical effect. In these drawings:-
Figure 1 is a vertical section of a lubricator fitted with the recessed needle, and
constructed for use upon rotating or moving parts of machinery.
Figure 2 is a vertical section of a lubricator for use upon a fixed bearing; and
Figure 3, is a similar section of a modified form of fixed lubricator.
In each of the figures the recessed needle is shewn at s. In the lubricator
illustrated by Figure 1, the movement of the needle is derived from the movement.
of the mechanism or machinery to which it is fixed, the amount of the throw of the
needle being regulated by means of the adjustable screw b. In action, the oil is.
thrown upon the lip of the tube c, through which it is conducted to the bearing.
In the modification of the lubricator illustrated by Figures 2 and 3, the needle
rests in the usual manner, with its lower end in contact with the journal or shaft,.
and the motion is imparted to it by its friction upon the rotating part.
The construction of the automatically closing cover is illustrated by Figures 2
and 3. The under-side of the cover, d, has an annular projection e turned upon it,
and in the upper surface of the lubricator, a corresponding annular recess f, is
formed. The annular part e fits within the part f, and the projection is of such a
depth that when the cover is in its closed position, no other external part of it
touches the body of the lubricator. This permits the cover to be freely tilted so as
to open the lubricator, as shewn by Figure 3, by inserting the spout of an oil can
under it. To prevent the cover being thrown off, a link such as g may be attached
to the under side of the cover within the lubricator. This link passes through
a loop or eye fixed to the cover, and is supported therein at about its centre.
The oil can o, represented in Figure 3, is not any part of this invention, and is.

page_text: shewn only for the purpose of illustrating how the lubricator may be filled from
below. The oil can is mounted upon the pole p, and its spout is provided with a
tap h, the handle of which is operated by the rod i. On the spout there is also
fixed the guard which, coming into contact with the body of the lubricator,
prevents the point of the spout being pushed too far. It will however be under-
stood that any ordinary oil can may be employed.
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
1. A needle lubricator constructed substantially as hereinbefore described and
as illustrated by Figure 1 of the accompanying drawings.
2. A needle lubricator constructed substantially as hereinbefore described and as
illustrated by Figures 2 and 3 of the accompanying drawings.
.:
3. In a needle lubricator, a needle having annular recesses formed therein,
substantially as and for the purpose hereinbefore described.
4. In a needle lubricator, a cover having an annular projection fitting within an
annular recess formed in the upper part of the lubricator, constructed and arranged
substantially as and for the purpose hereinbefore described and as illustrated by
Figures 2 and 3 of the accompanying drawings.
Dated this 6th day of July A.D. 1892.
WILLIAM E. HEYS.