AN IMPROVED CONSTRUCTION OF LUBRICATOR.
Year: 1870

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Mechanical
Draughtsman, for the Invention of "AN IMPROVED CONSTRUCTION OF
LUBRICATOR.". -A communication from abroad by William Gee, of
Sealed the 14th February 1871, and dated the 6th September 1870.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton
at the Office of the Commissioners of Patents, with his Petition,
on the 6th September 1870.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Mechanical Draughtsman, do hereby
declare the nature of the said Invention for "AN IMPROVED CONSTRUCTION
OF LUBRICATOR," to be as follows:-
The object of this Invention is to provide for the better observation of
the working of lubricators. To this end, below the contracted orifice
of the reservoir (through which the oil escapes) a chamber is provided

page_text: of such capacity that the oil or other lubricating material will drip
through the chamber instead of trickling down over the surface of the
passage leading from the reservoir and feed regulating device to the
bearing or other surface to be lubricated. In the sides of this chamber
openings are made (or it may be partly constructed of glass) to enable
the dripping of the oil within or through it to be distinctly seen.
In order to insure the dripping instead of the trickling of the oil or
lubricating material from the reservoir through the said chamber, a teat
is provided around the orifice through which the oil or lubricating
material passes into the said chamber.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alfred Vincent Newton in the Great Seal Patent
Office on the 4th March 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of September, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me; the said Alfred Vincent Newton, Her special licence
that I, the said Alfred Vincent Newton, my executors, administrators,
and assigns, or such others as I, the said Alfred Vincent Newton,
my executors, administrators, and assigns, should at any time agrec
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVED CONSTRUCTION OF LUBRICATOR," being a communication to me
from abroad by William Gee, of the City and State of New York,
United
States of America, upon the condition (amongst others) that I; the said
Alfred Vincent Newton, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said
Invention, and in what manner the saine was to be performed, and

page_text: cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Alfred Vincent Newton, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing here-
unto annexed, and to the letters and figures marked thereon (that is
to say):
The want of some means of observing the operation of self-feeding
lubricators has long been recognized. With a view to provide for this
want and to facilitate the proper adjustment of the feed regulating
device the reservoirs have been made of glass or with glass sides
through which the quantity of oil contained therein might be seen; but
the facility thus afforded for ascertaining whether the lubricator was
feeding properly was very imperfect, as the action could only be
determined by watching the gradual diminution of the level of the oil
in the reservoir, which was necessarily tedious.
The object of this Invention is to provide for the better observation of
the operation, and to this end it consists in the provision below the
reservoir, the feed regulating device, and the contracted orifice through
which the oil escapes from the reservoir, of a chamber of such capacity
that the oil or other lubricating material drips through the said chamber
instead of trickling down over the surface of the passage leading from
the reservoir and feed regulating device to the bearing or other device to
be lubricated, such chamber having openings in its sides, or being partly
constructed of glass, and thereby enabling the dripping of the oil within
or through it to be distinctly seen.
In order to insure the dripping instead of the trickling of the oil
or lubricating material from the reservoir through the said chamber,
one feature of this Invention consists in providing a teat around the
orifice through which the oil or lubricating material passes into the said
chamber.
In the Drawing Fig. 1 is a central vertical section of a lubricator with.
my improvement, and Fig. 2 is an elevation of the drip chamber detached'
from the reservoir and feed regulating device. Similar letters of reference
indicate corresponding parts in both Figures.

page_text: A is the reservoir; B, the feed tube, and C the adjusting valve or plug
for regulating the feed; these are represented of a well-known con-
struction, serving as well as any other to illustrate the application of this
Invention; but the reservoir and feed regulating device may be of any
other known or suitable construction, whereby a contracted orifice is
provided at the bottom of the reservoir for the escape of the oil or other
lubricating material. F, H, I, is the drip chamber arranged below the
reservoir and feed regulating device and between the said device and
the hollow stem G, which is inserted into the support for the lubricator.
This chamber is formed in part of a hollow cylindrical shell F of metal,
which is made in the same piece with or attached to the bottom of the
-feed-tube-B,-and-in-part-by-a-socket I provided_on_the stem G, the
shell F screwing into this socket. To render the interior of the said
chamber visible, holes e, e, of suitable size are provided in the sides of
the cylindrical shell F, and to prevent the entrance of dust while still
permitting the interior to be seen, the said shell is lined with a glass
tube H, or small plates of glass may be fitted to the holes c, e, for the
same purpose. Projecting into the top of the said chamber is a teat a
formed on the lower end of the feed tube, and round the contracted
orifice c thereof through which the oil escapes from the reservoir A,
and on it the oil or lubricating material collects to form the drip.
The operation is as follows:-The oil or other lubricating material
passing the feed regulating valve or plug C collects in the lower part of
the feed regulating tube B, until there is a sufficient accumulation at
the lower orifice of the said tube to form a drip which drips through the
chamber F, H, I, to the bottom thereof, whence it passes through the
hollow stem G to the place to be lubricated. The dripping taking place
frequently can be observed through the openings E, E, of the chamber,
and the quantity supplied can be so easily determined as to enable the
feed regulating device to be properly adjusted. The delivery of the oil
in drips is better insured by the teat a formed around the lower orifice
of the feed tube, or, by what would be equivalent, the making of the
interior of the upper part of the chamber of convex form.
This Invention differs from all other lubricators, not in allowing the oil
to be seen, but in feeding with a visible drip, the frequency or cessation
of which can be at once ascertained.
Having now set forth the Invention of "An Improved Construction
of Lubricator," as communicated to me by my foreign correspondent,

page_text: and explained the manner of carrying the same into effect, I wish it
to be understood that under the above in part recited Letters Patent
I claim,―
First. The open or transparent chamber arranged below the reservoir
and feed regulating device, and in combination with the contracted
opening through which the oil or lubricating material escapes from the
reservoir, substantially as herein described, to provide for the dripping
of the said material and the view of the drip.
Second. In combination with the drip chamber and reservoir I claim
the teat a, substantially as and for the purpose specified.
In witness whereof, I, the said Alfred Vincent Newton, have here-
unto set my hand and seal, the Fourth day of March, in the year
of our Lord One thousand eight hundred and seventy-one.