Improvements in Displacement Lubricators.
Year: 1894

page_text: Date of Application, 19th Apr., 1894
Complete Specification Left, 19th Jan., 1895-Accepted, 23rd Feb., 1895
Improvements in Displacement Lubricators.
THOMAS EVANS MITTON trading as Hunt & Mitton Engineers Brassfounders
13/15 Oozells Street North Birmingham do hereby declare the nature of this
invention to be as follows:-
The object of this invention is to produce a lubricator of the displacement type
in which it is possible to see & observe the passage of the lubricant from the
reservoir to the work.
In carrying out this invention we make use of the ordinary or any type of
displacement lubricator in the neck of which and just above the lower stop cock a
recess is formed conveniently shaped to receive a glass tube the ends of which
communicate with the outlet from reservoir & the lower stop cock connection being
made tight by means of glands and stuffing boxes or any other suitable means.
A portion of the metal at neck is removed so that the passage of the lubricant may
be clearly observed. Now the working of the lubricator is as follows-Steam is
admitted to the uppermost part of the reservoir and the water of condensation
dropping by gravity to the bottom forces a portion of the oil over the edge of a
tube conveniently arranged to receive it which tube communicates with the glass
tube in neck of lubricator and the oil passing through may be seen before it passes
the bottom stop cock.
Dated this 18th day of Anril 1894.
Improvements in Displacement Lubricators.
1, THOMAS EVANS MITTON, trading as Hunt & Mitton, of Oozells Street
North, in the City of Birmingham, Engineers Brassfounder, 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 has reference to lubricators of the displacement type and consists
of the hereindescribed improvements in the construction of the same whereby the
passage of the lubricant from the reservoir to the work can be clearly seen.
The
In carrying out this invention I make use of the ordinary or any type of
displacement lubricator in the neck or lower part of which and just above the
lower stop cock I provide a glass tube the ends of which communicate with the
outlet from the reservoir and with the lower stop cock, the connections being made
tight by means of glands and stuffing boxes or any other suitable means..
passage of the lubricant from the reservoir through the glass tube may be clearly
seen before it passes to the bottom stop cock. When the said glass tube is
situated in the neck of the lubricator a portion of the metal of the neck is removed
at each side so as to expose the glass and shew the passage of the lubricant
therethrough.
In order that my said invention may be well understood I will now proceed to
describe the same by referring to the accompanying drawings on which Fig. 1 is
an elevation of a displacement lubricator constructed according to this invention
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page_text: with the glass tube in the neck of the lubricator; Fig. 2 is a sectional elevation of
the same and Fig. 3 is a sectional.elevation of a modification of the same made
with the said glass tube outside the said neck.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawings.
Referring firstly more particularly to Figs. and 2 A is the reservoir containing
the lubricant provided with a top filling hole a closed by a removable plug B.
C is the stop cock provided below the reservoir A for opening, shutting off, and
regulating the supply of steam to the reservoir A and correspondingly the flow of
lubricant therefrom. D is the usual drain cock for draining out the water from the
reservoir A. E is the glass tube which according to this invention I provide in
the neck or lower part a' of the lubricator this neck having an opening at each
side one of these openings being shewn in Fig. I and marked e'. Through these
openings e¹ the glass tube E and the oil passing therethrough can be clearly seen
when the lubricator is at work. The glass E fits in a recess in the neck part a
which is formed with the cock Cand is there secured by a top plug F screwed
therein and making a steam tight joint with asbestos washers or other packing at
the ends of the tube E.
The displacement lubricator above described works in the usual way, that is to
say-By the cock C steam is admitted through the passage c¹ and pipe c³ to the
uppermost part of the reservoir A and the water of condensation dropping by
gravity to the bottom of the reservoir A forces a portion of the oil over the edge
of the tube in the plug F which tube communicates with the glass tube E in the
neck of the lubricator so that the oil dropping from the bottom of the tube f¹
through the glass tube E may be clearly seen before it passes through the bottom
stop cock C and out through the outlet 3. In Figs. 1 and 2 the stop cock is shewn
open. It will be understood that by turning the handle at right angles to the
position shewn the lubricator will be closed.
In the modification of my invention shewn by Fig. 3 the glass E is arranged in
the lower part of the reservoir A above the bottom stop cock C but is outside the
neck,a. It will be seen that in this arrangement the glass tube E fits in a stuffing
box a' in the lower part of the reservoir A at some little distance out of the centre
of the same and also fits in a similar stuffing box g' formed in a side lug or
projection G on the bottom stop cock C a side passage c being made in this lug G
communicating from the glass E to the plug of the stop cock C (which in this
case is a three-way plug as shewn) so that when the bottom stop cock C is open as
shewn in Fig. 3 the steam for condensation will pass up the passage c' and pipe c
as stated above and the oil will gradually be displaced and flow down the pipe f
and drop from the lower end of the same through the glass tube E into the
passage from whence it will flow to the lower stop cock C and out through the
passage c. The glass E can readily be removed and replaced when required by
first removing the small plug H which is screwed into the bottom of the side
projecting boss G.
1
In conclusion it is to be understood that I make no claim in respect of the
displacement lubricators above described and illustrated on my drawings except
when combined with the glass tube in the manner hereinbefore set forth.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what I
claim is :-
1. In a displacement lubricator the combination of the lubricator cylinder A
(from which the lubricant is arranged to be displaced by the condensation of steam
therein) the bottom stop cock C, and the glass E arranged in the outlet passage in
the neck of the lubricator between said reservoir and stop cock so as to shew the
passage of the oil through the glass E before passing the stop cock, substantially.
as herein before described and illustrated by Figs. 1 and 2 of the accompanying
drawings.

page_text: 2. In a displacement lubricator the combination of the lubricator cylinder A.
(from which the lubricant is arranged to be displaced by the condensation of steam
therein) the bottom three-way stop cock C, and the glass E arranged in the outlet
passage outside the neck of the lubricator between the said reservoir and stoj
cock so as to shew the passage of the oil through the glass E before passing the
stop cock, substantially as hereinbefore described and illustrated by Fig.
accompanying drawings.
Dated this 18th day of January 1895.
of the
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.