IMPROVEMENTS IN LUBRICATORS
Year: 1885

page_text: I, HIRAM ROBERTS, of N° 3, Dean Street, Keighley, in the County of York,
Engineer, do hereby declare the nature of my invention for IMPROVEMENTS IN
LUBRICATORS, to be as follows:-
This invention relates to certain improvements in Lubricators, and has for its
object the feeding of lubricating liquids to the slide valves and pistons of steam
engines whilst under pressure, in such a manner that the quantity of lubricant
supplied is visible and automatically injected into the steam pipes or cylinder,
which I accomplish in the following manner:
I place the lubricating liquid in a cup, at the bottom of which is a tap for
regulating the number of drops or supply to the engine, which fall into another
cup in which is fitted a plug stopper that has an intermittent rotary motion
imparted to the same. This plug stopper is prepared with a number of holes,
which as they appear at the bottom of the second cup, collect the lubricant, and as
the plug revolves, on the holes containing the lubricant appearing opposite the pipe
opening communicating with the steam pipe or cylinder, the lubricant escapes, and
thus lubricates the valve or cylinder surfaces; any condensed steam that may
accumulate in the holes of the plug stopper, is allowed to escape through a pipe
before the respective holes reach the opening through the bottom of the second
mentioned cup into which the lubricant drops.
Dated this on 1 1
WAUGH & CHAPMAN,
Agents for the Applicant,
70, Chancery Lane, W.C.

page_text: Improvements in Lubricators.
I, HIRAM ROBERTS, of 3 Dean Street Keighley, Yorkshire do hereby declare
the nature of my invention for IMPROVEMENTS IN LUBRICATORS and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:―
My invention relates to those lubricators that have to supply the lubricant
against a resisting pressure, such as when supplying it to the interior of slide valve
boxes, steam cylinders or other such parts of engines or other machinery, and in
order that the same may be clearly understood I will proceed to describe it by
reference to the accompanying sheet of drawings wherein Fig. 1 is a side elevation
thereof, Fig. 2 longitudinal section and Fig. 3 section of Fig. 1 on line A. B.
Like letters of reference indicate corresponding parts in all the drawings.
The lubricant (such as oil, tallow, etc.) a is placed in the cup or holder b from
whence it flows through the tap c into the funnel shaped receptacle d and by the
aperture e is conducted to the plug f which impedes its further progress until it
carries it forward in the manner explained as follows:-
To the plug f, which is suitably held by the stuffing box f¹, is imparted an
intermittent rotary motion, this being derived through the medium of the con-
necting rod g, lever h, catch i and catch wheel k, from any motor part of the engine
or other machinery; and in that part of the outer surface of the said plug f which
comes immediately under the aperture e, is formed a number of hollows or
recesses; the number being varied as requirements direct. From this it will
be seen that as the recesses are successively presented under the aperture c,
as the plug fis intermittently revolved, they will become charged or filled with
the lubricant flowing therefrom; and that as the said plug f continues to be so
turned, the said recesses will be brought in succession opposite the aperture m
which is directly in connection with the steam or other gas or vapour under
pressure, the action of which upon the lubricant so brought into connection with it,
has the desired effect. And in order to relieve the recesses of any gas,
vapour, or liquid that may be left therein after they are further turned from the
opening m and before they are again presented under the aperture e, a tube or
opening n is employed, throwing these recesses as they pass thereby, open to
atmospheric action by which means the said gas, vapour, or liquid is drained off;
thus a more efficient working of the plug f for the purpose herein before described,
is insured.
It will be readily seen from the foregoing that the quantity of lubricant required
to be supplied is regulated by the rate at which the plug fis revolved, and that
this may be varied, quicker or slower, by moving the joint gl of the connecting
rod g nearer to or further from the fulcrum of the lever h.
It will also be seen that the flow of the lubricant from the holder b to the
receptacle d will have to be regulated by the tap c or the said lubricant, should it
flow too quickly, will overflow the said receptacle d, or should it flow too slowly
the interior of the slide valve box etc. will not receive proper lubrication, therefore
the quantity of lubricant being consumed is visible as it flows drop by drop from

page_text: the tap c to the receptacle d, hence this lubricator may be termed a "sight feed
lubricator." By the aperture p for the free admission of the steam or other heated
gas or vapour under pressure, to the bottom of the holder b the liquefaction of the
lubricant is greatly assisted thus its flow as before described, is materially
improved.
In order to arrest all dirt etc. before its passage to the plug f, a small sieve o is
placed in the funnel shaped receptacle d.
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. The combination and arrangement of the holder b with the receptacle d and
the plug fused in the manner and for the purpose as herein fully described and as
illustrated by the accompanying drawings.
2. The use and employment of the plug f in combination with the tube or
opening n in the manner and for the purpose as fully herein set forth & described.
Dated this 3rd day of December 1885.
HIRAM ROBERTS.