Year: 1896

page_text: I, JOHN WILLIAM NIBLETT, of Newmarket, in the Town of Nailsworth, County of
Gloucester, a Working Engineer, do hereby declare the nature of this invention to be
as follows:-
The Invention relates to a novel means whereby over-flowing oil, which in use of
the oil-can is commonly dispersed upon the exterior surface of an up-reaching and
detachable feed-tube, is restored to the lower placed containing vessel from which it
was withdrawn.
A feed-tube such as nained above is cominonly constructed of metal, taper in
shape and attached to the container by means of a screw constructed upon its larger
end.
In this Invontion the screw of the feed-tube is, by preference, made slightly taper,
but reversely to the taper of the feed-tube itself; and the screw of the "neck
constructed at the top of the container to receive the feed-tube is then constructed
taper to match with it.
The screwed tube end and neck are constructed taper for the purpose of providing
the necessary check to au undue advance of the feed-tube within the neck and
instead of the usual circular flange or collar.
Immediately above the neck and around it is constructed a suitably shaped cup,
so that the feed-tube upon being screwed into the neck is then surrounded at its
base by the cup which thus collects the oil from the exterior of the feed-tube.
In the use of metal screws in such a purpose as the above there commonly and
practically occurs a small defect from an absolute fit of the threads of the screws and
caused by a very slight difference of the sectional shape of the external thread of the
Bcrew of the foed-tube with the sectional shape of the internal thread of the screw
within the neck upon the container.
This usually existing small difference of sectional shape of the threads in their
continued occurrence around the entire length of the convolutions of the screw
furnishes a course of sufficient length necessary for the very slow passage of oil
collected in the cup to the interior down-reaching surface of the container.
Dated this 17th day of August 1896.

page_text: Improvements in Oil-cans, and in the Manner of their Construction.
I, JOHN WILLIAM NIBLETT of Newmarket, in the Town and Parish of Nailsworth,
in the County of Gloucester, Working Engineer, 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:-
My Invention is substantially an improvement upon the means as shewn und
described for a like purpose and as set forth in the Specification relating to the
Letters Patent granted to me (18003-1892).
The Improvement is more especially adapted for use in the class of oil-cans in
which a metal feed-tube is attached to the containing vessel by means of serowing
the feed-tube to within a metal socket or neck constructed upon the body of the
container.
In the use of such oil-cans a small quantity of waste or surplus oil is more or less
frequently dispersed upon the exterior surface of the feed-tube; and ny invention
.is an improved means whereby this surplus oil is restored to the container.
As the preliminary step to restoring the surplus ol, it is first collected and
temporarily retained in a cup of suitable shape and material, constructed to surround
a lower part of the feed-tube.
The collecting cup is preferably constructed as an extension upon the upper part
of the metal neck of the container, and surrounds the part of the feed-tube
immediately above the attaching screw.
The lowest part of the screw which is constructed within the neck extends
downwards to as nearly as practicable to the down-reaching interior surface of the
container also the lowest part of the screw within the neck is constructed of a
slightly rodduced diameter; and the screw constructed upon the feed-tube is reduced
in diameter to a corresponding extent at its lowest extremity, so as to provide the
necessary check to its undue advance to a point beyond the extremity of the screw
constructed within the neck.
The threads of the upper part of the attaching screw communicate directly with
the bottom of the interior of the cup at their junction with it, and here begins the
iulet to the container, as described in the following:-
The threads of the screw for attaching the feed-tube to the internally-screwed
neck are preferably of the ordinary type of construction as used in such purposes;
the "thread" and "space" are each of V shape, and such that the threads do not
at any part of the screw absolutely and completely fill the corresponding spaces.
The diameter of the finger-hold provided is rather less than is used in ordinary and
is not sufficient to allow of the use of such force as would compel the filling of the
spaces with the threads.
In this manner a minute portion of the space is open throughout and around the
entire length of the convolutions of the screw, and is available and is advantageously
used as a means for the slow passage of oil from the collecting cup, around and
between the threads of the screw, unto the down-reaching interior surface of the
container.
The bore of the feed-tube where it enters furthest within the screwed neck is
widened out as much as is practicable to a thin circular edge, so as to avoid the
collecting of oil upon its extremity; and also that the oil emerging from around the
threads of the screw may be aided in its down-flow by the confluent operation of oil
flowing down from within the feed-tube.
Proceeding now to describe in detail the means employed by which the Invention
is brought into effect, and for this purpose referring to the accompanying
Drawing:-

page_text: A. Fig. 1 is the exterior surface of the feed-tube of an oil-can upon which is
dispersed a small quantity of oil from the orifice B each time after the use of the
oil-can.
C is a lower placed part of the feed-tube, of au enlarged diameter and suitably
knurled or otherwise conveniently shaped for the purpose of finger-holds when
attaching the feed-tube.
D is a still lower part of the feed-tube at the bottom of which part and from
around it, is collected within the cup E the surplus oil collected from D.
Fis the metal screw constructed upon the bottom of the feed-tube inmediately
below D.
G is the internally screwed neck which receives the correspondingly screwed end
of the feed-tube.
The cup E extends upwards from around F and G and quite surrounds the lower
part of D.
The screws Faud that of G both terminate at H; and the interior surface I of the
container is constructed to meet the screws at H, for the purpose of its operating as
a downward conductor of the surplus oil to a lower part J of the containing vessel.
K is the commoncement of the minute passage as the inlet for oil around the
convolutions of the screw; the termination of the passage, or inlet to the container,
is at the level at H, where the termination of the screw meets the down-reaching
interior surface of the container.
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 employment in oil-cans, substantially in the manner as bereinbefore
described and shewn, and as a means for conveying waste or surplus oil collected
from the exterior surface of the feed-tube to within the containing vessel, of the
minute space which exists, or which otherwise is then provided, around the entire
length of the convolutions of the screw which attaches the feed-tube to the container:
together with its necessary complement in this combination, namely, the
construction, substantially in the manner as shewn of the interior surface of the oil-
can disposed adjacently to, and for operation with, the lowest extremity of the
minute inlet to the container; so as to provide by this disposition of the interior
surface, together with the downward direction of its shape, a needful aid to the
down-flow of oil from the extremity of the inlet, by the confluent operation of the
down-flow of other oil from within the feed-tube.
Dated this 14th day of Mer 1907