AN IMPROVED SIGHT FEED LUBRICATOR
Year: 1884

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I WILLIAM BRIERLEY of Number 72 Drake Street Rochdale in the County
of Lancaster Brass Founder do hereby declare the nature of my Invention for
AN IMPROVED SIGHT FEED LUBRICATOR" and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
My Invention has for its object a method of condensing or liquifying tallow or
other solid or heavy bodied fatty matters used as lubricants for the working parts
of steam engines, my arrangements being so adapted as to maintain an uniform
temperature of the oil, tallow or other lubricant as the case may be which in the
case of certain lubricants is of great importance as it is well known that when
heated to a great degree of heat the lubricating properties of the oil or melted
tallow are vaporised thus leaving in the lubricator cup a solid or non-lubricating
substance.
In order that my Invention may be better understood I refer to the accompanying
Sheet of Drawings like letters throughout the Drawings indicating like parts.
Fig. 1 is a front elevation of the lubricator. Fig. 2 a side elevation of the lubricator
shewing tallow and oil cup in section. Fig. 3 is a section of the condensor shewing
vacuum valve and bollow metal tubes. Fig. 4 is a section of the condensor at A. B.
(plan). Fig. 5 is a section of the tap or cock marked 3 in the Drawings Figs. 1 and 2,
and Fig. 6 is a plan in section of Fig. 1 at C. D.
5 is a steam inlet pipe having a screwed part at its lower extremity to be
connected to the valve chest steam pipe or other part of a steam engine required
to be lubricated, it is provided at its upper end with a tap or cock 3 which tap
opens or closes the thoroughfare or passage 31 the glass sight tube 2 is filled through
the opening 21 with water or other liquid for a purpose to be hereinafter described,
a glass tube 21 is provided on the other side of the pipe in like manner its use
being similar to tube 2 having its thoroughfare or opening 4 controlled by a
seperate or independant tap or cock. The tap or cock 3 also controls or opens the
passage in the upper part of the steam pipe or tube 5 thus admitting steam from
the valve chest or steam pipe of the engine, the said pipe is connected at its upper
extremity by means of a union or coupling 6 to a cylindrical or other shaped metal
enclosed vessel 7 hereinafter termed the condensor having its upper and lower
surfaces respectively provided with apertures into which are fitted a series of
hollow metal cylindrical tubes 8 having their extremities contracted or enlarged
and their surfaces plain or corrugated as desired and as shewn in the Drawings

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Figs. 3 and 4 my object in providing the condensor 7 with tubes 8 as above
described is to obtain a greater area of condensing or radiating surface, the
condensor 7 is fitted or fixed in a suitable position above the oil or tallow cup
Figs. 1 and 2 on the upper extremity of the tail pipe 9 of the cock or tap-the
said pipe being secured at its lower extremity or part to the upper surface of the
oil or tallow cup 1 water may be admitted into the enclosed condensor through the
valve 10. the steam from the valve chest or steam pipe of the engine passing
through the pipe or tube 5 is condensed therein falling as is manifest by its own
gravity into the pipe 9 the office of the tap or cock 91 is to regulate the quantity
of water from the condensor into the tallow or oil cup through the pipe 9 which
extends to or near the bottom of the oil or tallow cup 1 as shewn in Figs. 1 and 2.
The cup is supplied or filled with oil or tallow through the aperture 1¹ the same is
heated by means of a connecting metal piece 911 connected with the metal piece 9111
forming the lower part of the cup, and the metal piece 91111 forming the lower part
carrying or supporting the glass sight tubes 21 211 and through which the steam
pipe or tube 5 passes to the condensor 7 thus the oil or tallow contained therein
(the said cup) is kept in a liquid or semi-liquid state. The volume or body of
water admitted through the pipe or opening-from the condensor into the cup-by
operating the tap or cock 91 comes in direct contact with the oil or tallow contained
therein and elevates the contents in the cup,-when the oil or tallow is elevated or
compressed to or near the upper surface of the interior of the cup the oil or tallow is
forced and escapes downwards and in the direction as indicated by the arrows through
the pipes, tubes, or passages 11 as shewn in Figs. 1 2 and 6 respectively, when tallow
is required to be used only in my lubricator the tubes or pipes are preferably made of
_copper which is an effective conducter of heat, the direction of the tubes or-passages-11
are from the lower extremity of the cup 1 so situated and suitably placed near
to the steam pipe or tube 5 as shewn more particularly in Fig. 6: the oil or tallow
passing through the passages at these parts to sight tubes 2 and 211 respectively
is obviously heated, being supported or carried by or on the metal piece 91111
containing the passages 11 to convey the oil or tallow thereto the said tubes being
filled with water or other liquid through the apertures at their upper ends is
consequently heated thus preventing the oil or tallow which is emitted from the
nozzles or jets 211 from being cooled consequently aiding the oil or tallow to pass
in its fluid state through the passages or thoroughfares 3' & 4. thence into the
steam pipe or tube 5 or connection from the passage 4 terminating at the part
or parts of the engine desired to be lubricated the use of the connections
or thoroughfare from the passage 4 being to lubricate any other part than the
valve chest of the engine, as each particle or drop of oil is emitted from the nozzles
or jets 2111 at regular intervals into the sight tubes the water in the lower part
of the tallow or oil cup ascends thus maintaining a constant supply of oil or
tallow at the nozzles 21 and so on continues until the whole of the oil or tallow
is discharged from the cup. When the lubricator is applied to the steam pipe or
steam chest of the engine to be lubricated it is evident that when the engine has
ceased working there is a vacuum or partial vacuum formed within the steam pipe
or valve chest of the engine, if the attendant omits or neglects to close the tap 3
and the tap 91 the thoroughfares or openings in the glass sight tubes being subject.
to the action of the vacuum obviously the contents of the lubricator will be drawn
off or extracted therefrom to obviate this I provide at the lower extremity or any.
convenient part of the steam pipe 5 a valve 5¹ adjusted by a suitable spring which
remains or is kept open during the working of the engine by the action of the
steam entering the steam pipe 5 from the valve chest or steam pipe of the engine
which affords an opening for the passage of the jets of oil or tallow from passage 3¹
before described the action of the valve is as follows, when the engine ceases
working a vacuum is formed between the valve chest and the valve 5¹ consequently.
closing the valve and preventing the escape or extraction from the lubricator of its
contents. If in case the valve is prevented from closing effectually by dirt or grit
on its seat a vacuum is formed throughout the length of the steam pipe 5

page_text: consequently in the condensor 7 thus causing the valve 10 to open admitting
atmospheric air through the aperture 10¹ into the condensor 7 thus destroying
the vacuum and preventing the extraction of the contents from the lubricator as
the case may be. The lower part of the cup 1 is provided with a suitable valve
for the purpose of drawing off or emptying the water from the cup after the oil
or tallow bas been discharged from the said cup.
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 arrangement and the combination of the tubes, pipes, or passages 11 the
nozzles or jets 2111 the metal pieces 9" and 911 the metal piece 91111 supporting
the sight tubes to be applied to an improved oil and tallow lubricator substantially
as described in the annexed Drawings and for the purposes herein fully set forth.
2. The arrangement and the combination of the check or vacuum valve 5¹
and 10 to be applied to an improved oil and tallow lubricator substantially as
described in the annexed Drawings and for the purposes herein fully set forth.
3. The arrangement and combination of the cylindrical, conical or corragated
tubes 8 in and the cylindrical metal condensor 7 to be applied to an improved
oil and tallow lubricator substantially as described in the annexed Drawings and
for the purposes herein fully set forth.
Date : 5th of Anil 1001