Containing Butter.
Year: 1887

page_text: Date of Application, 15th Feb., 1887.
Specification Accepted, 15th Mar., 1887.
Containing Butter.
1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 relates to butter tubs of the class described in the Specification of
Letters Patent of the United States dated December 30th 1884 No. 309,969, and its
principal object is to render the exclusion of air in such butter tub more perfect by a
better attachment of the lid of the tub.
In the accompanying drawing,
Figure 1 is a perspective view of my improved butter tub.
Figure 2 is a section showing the parts.
Figure 3 is a detail showing the way I rivet the retaining tongues to the tub, and
Figure 4 is a view of a modified form of fastener.
A is the butter tub; B the lid or cover; C the channel or bend: 1) the packing;
E the flange the retaining tongue G the retaining hook in the modified form of
fastener and H the lever for drawing the hook into place.
:
In making my improved butter tub I take preferably a tub of the construction and
general shape of the one described in the specification above referred to. To make the
exclusion of air from the tub, which has a deteriorating effect on the butter contained
therein, more perfect and secure, I employ a padding or cushion of cotton, felt, cloth
or other suitable material interposed between the upper rim of the butter tub and the
lid. The top is provided with a free edge which is bent into a groove or channel
adapted to fit in use snugly over the upper rim of the tub as will be seen from a
reference to the drawings.
In the bottom of the bend or groove in the lid, formed by bending its edge up and
over the top of the tub, I place packing of any suitable material as above described.

page_text: This packing rests upon the upper rim of the tub and when the top is down in place it
is compressed in the groove or channel in the top tightly against and around the upper
rim of the tub forming an air tight cushion or packing which will effectually exclude
and prevent the admission of air.
The free edge of the top is bent down a convenient distance after passing over the
rim of the tub and turned out into a rim or flange. This rim or flange, as will be seen
from a reference to the drawings, stands practically at right angles to the side of the
tub. It is provided at intervals around the tub with slots or holes through which
tongues, like those described in the specification hereinbefore referred to are to be
inserted. These tongues are preferably rivetted to the tub with one rivet each, as
shown in figures 2 and 3, so that they can be turned down out of the way when the lid
is off and the tub not in use. When the tongues are inserted in the slots they are
preferably bent outward and downward, though they may be bent over the top of the
lid if desired thus drawing the lid securely down in place, pressing the packing
against the upper rim of the tub and holding and securing the lid in position until it
is desired to be taken off to remove the contents of the tub. This is done by simply
straightening the tongues so that they will slip out of the slots as the lid is raised.
By bringing the edge of the lid over the top of the tub and down and turning it out
in a flange, as above described, the slots may be placed in such outwardly extending
flange instead of in the groove or channel at the top of the tub, as shown and described
in the aforesaid specification. This enables me to place the packing or cushion in such
groove or channel immediately on the upper rim of the tub, which I cannot do
satisfactoriy and securely where the slots are made in each groove or channel as in the
aforesaid specification.
In Figure 4 I have shown a modified form of the fastener. Instead of employing a
tongue that passes up through a slot in an outwardly extending flange, I make a hook
or clasp G adapted to fit upon and securely clasp the rim of the tub top. The lower
end of this hook is extended and pivotted to a lever or piece H, which piece is in turn
pivotted at some distance from its end to the side of the butter tub. As it is turned
so that the end pivotted to the extended portion of the hook G is raised or lowered it
will of course correspondingly raise or lower the hook. If the piece H be pivotted to
the side of the tub at a proper distance from the top, its end pivotted to the hook G
will draw it down firmly and securely upon the rim of the cover, so as to hold it in
place, at the time the upper end is brought between the piece G and the side of the tub.
The course of the piece H when being thus turned into place is shown by dotted lines.
Thus when the top is brought firmly and tightly into position on the tub the lever
portion of the piece H is turned in directly between the piece G and the side of the
tub so as to be out of all danger of being struck and thrown out of position in handling
or shipping the tubs and all danger of accidentally loosening the top of the tub is thus
avoided.
This essential idea contained in this method of fastening is the employment of a lever
pivotted to the tub, which, as it is turned in one direction, will bear the fastening or
clasping piece down firmly against the top of the tub so as to bring it and hold it. in
place, and, as turned in the other direction, will either raise the fastening piece itself
or permit it to be raised by hand. I say "permit it to be raised" because it is obvious
that the piece which exerts the leverage or bearing power and by which the fastener is
brought down need not be actually pivotted to the piece but simply bear against a
shoulder or other projection thereon. These have been made without actually pivotting
the two pieces together but I prefer the form which I have described above and
illustrated in the drawings, and simply make this explanation in order that I may not
be unnecessarily limited to the strict details of the form shown.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed as communicated to me by my foreign
Correspondent I declare that what I claim is :-
First. In a butter-tub, the combination with a pail or tub provided with tongues,
of a cover having its free edge bent into a groove or channel fitting over the rim of the

page_text: tub and then turned outward into a flange or projection provided with slots through
which the tongues pass in use, substantially as described.
Second. In a butter-tub, the combination with a pail or tub provided with tongues
rivetted thereto with one rivet, of a cover having its free edge bent into a groove or
channel fitting over the rim of the tub and then turned outward into a Hange or
projection provided with slots through which the tongues pass in use, substantially
as described.
Third. In a butter tub, the combination with a pail or tub provided with tongues,
of a cover having its free edge bent into a groove or channel fitting over the rim of
the tub and then turned outward into a flange or projection provided with slots through
which the tongues pass in use, and a packing interposed in the groove or between the
rim and cover, substantially as described.
Fourth. The combination with a tub having a lid or cover, of a fastening hook and
a pivotted piece or lever drawing such hook into position to hold the lid in place when
turned in under the hook and freeing it when turned out from under the hook,
substantially as described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.