An Improved Bush for the Bungs in Barrels or the like.
Year: 1899

page_text: Date of Application, 4th Mar., 1899 - Accepted, 8th Apr.,
1899
COMPLETE SPECIFICATION.
An Improved Bush for the Bungs in Barrels or the like.
We, JOSEPH EDMUND DUVAL DAY, of "Reliance" Iron Works, St. Leonard's
Street, Bromley-by-Bow, London, E., Engineer, and THOMAS HOEFNER, of Bromley-
by-Bow, London E., Cooper, 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 an improved bush adapted to receive the bungs
in beer barrels and other barrels or vessels.
The bung holes of barrels have hitherto been largely provided with a metal
bush having a flange on its outer side and formed with a screw thread so as to
enable said bush to be screwed into the bung hole.
There are several disadvantages appertaining to bushes of such construction,
among others the bush is very likely to become loose in the bung hole and thereby
permit leakage, and it is comparatively difficult to fix or screw such bushes in
position.
1
These defects are obviated by our invention and in order that our said invention
may be readily understood reference is made to the accompanying drawings which
shows one form of our bush in side elevation in Fig. 1, an alternative form being
shown in sectional side elevation in Fig. 2.
In carrying our invention into practice we make a bush A. of suitable and more
or less readily expandable metal. The upper end of said bush is formed with a
flange a and the lower end is formed with a projecting ridge a². The diameter of
the said ridge a¹ is such that it will just enter the bung hole in which our im-
proved bush is to be fixed and when said bush has been entered until the flange a
rests on the face of the bung hole, the said bush is expanded either by means of a
drift or by any other suitable expander so that the ridge a¹ will be pressed into
the wood of the staves and thus a tight joint is made.
In order to further increase the hold of our improved bush within the bung
hole we form said bush with say two more ridges a² which are however preferably
partly cut away as at a³ so that when the bush has been expanded as described
the ridges a¹ and a² will be pressed into the staves the said ridges a² by reason
of their being partly cut away, preventing any possibility of the bush being turned
Tound when once fixed:
If desired, the expander used for expanding the bush may be of such a shape
as to form a groove in the bush as shown in dotted lines at b in Fig. 2, but we
wish it to be understood that we do not confine ourselves to any particular shape
or form of our improved bush nor to the shape or number of the ridges or pro-
jections with which said bush may be formed. Further, we may employ any
suitable metal or alloy which in practice is found suitable.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what we
claim is:-
1. A bush for the reception of the bung in a barrel or the like, said bush being
adouted to be expanded in the hung hole so as to become fixed therein.

page_text: 2. An expandable bush such as A having a flange a and ridges such as a¹, a³,
all for the purposes and substantially as described and illustrated.
3. The combination with a barrel or the like having a bung hole of a bush fixed
in said bung hole by being inserted therein and then expanded substantially as
set forth.
Dated this 3rd day of March 1900