A New or Improved Bung for Metallic Casks or Drums for Containing Mineral and other Oils or the like.
Year: 1893

page_text: Date of Application, 23rd Oct., 1893
Complete Specification Left, 23rd July, 1894-Accepted, 25th Aug., 1894
PROVISIONAL SPECIFICATION.
A New or Improved Bung for Metallic Casks or Drums for
Containing Mineral and other Oils or the like.
I, RICHARD ELIHU DICKINSON, of The Bowling Iron Company, Limited,
Bradford, in the County of York, Engineer, do hereby declare the nature of this
invention to be as follows :—
This invention relates to improvements in bungs and bungholes for metallic
casks and drums, particularly applicable to casks or drums for containing mineral
oils, and its object is to provide a metal bung of simple construction.
For this purpose I employ an annular rim to form the bunghole welded or
otherwise secured to the sheet metal of the cask. This annular rim has an interior
lip formed around its lower edge which lip is "faced" to form a seat for the bung.
Two or more lugs or projections having circumferentially inclined under faces
projecting from the interior of the said rim a suitable distance above the bung seat
and notches corresponding to these lugs are made in the periphery of the bung to
allow the latter to be placed in position on the faced lip. The external face of the
bung has inclined faces formed upon it corresponding to the inclined faces of said
lugs and said faces are so relatively formed and arranged that rotating said bung
wedges the latter against its seat.
A square, hexagonal or similar projection may be formed on the outer face of
the bung to facilitate turning it, and the bung rim is preferably made sufficiently
deep that this projection does not extend outside it. This construction leaves a
recess which may be filled with sealing wax or the like.
Dated this 21st day of October 1893.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
A New or Improved Bung for Metallio Casks or Drums for
Containing Mineral and other Oils or the like.
I, RICHARD ELIHU DICKINSON, of The Bowling Iron Company, Limited,
Bradford, in the County of York, 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 :-
This invention relates to improvements in bungs and bungholes for metallic
casks and drums, particularly applicable to casks and drums for containing mineral
oils, and its object is to provide a metal bung of simple construction.
For this purpose I employ an annular rim to form the bunghole welded or
otherwise secured to the sheet metal of the cask. This aunular rim has an interior
lip formed around its lower edge which lip is "faced" to form the seat for the
bung. Two or more lugs or projections having circumferentially inclined under
faces project from the interior of the said rim a suitable distance above the bung
seat, and notches corresponding to these lugs are made in the periphery of the
bung to allow the latter to be placed in position on the faced lip. The external
face of the bung has inclined faces formed upon it corresponding to the inclined
faces of said bung, and said faces are so relatively formed and arranged that
rotating said bung wedges the latter against its seat.

page_text: Reference is to be had to the accompanying sheet of drawings forming a part
of this Specification in which similar letters of reference indicate corresponding
parts in each of the figures.
Figure 1, represents a diametrical section on the broken line a, b Figure 2, of a
bung and bung seat made in accordance with my invention.
Figure 2, represents a plan view of the same."
Figure 3, represents a diametrical section of the seat shown separately.
Figure 4, represents a separate edge view of the bung.
Figure 5, represents a plan view of the same.
The bung A has notches B, B in its periphery adapted to pass the
projection C, C as the bung is placed upon its conical seat D formed by the lip E
around the annular rim F. The underside of each of the projections C, C is
circumferentially inclined to the same angle as the inclined faces H, H on the
external face of the bung so that when the bung is turned in its seat in the direction
of the arrow Figure 2 the inclined faces engage each other and the bung is forced
down onto its seat.
To facilitate turning the bung the hexagonal projection J is formed on the face of
the bung and the rim F is preferably made sufficiently deep that this said projection
does not extend outside it. This construction leaves a recess K which may be filled
with sealing wax or the like.
I prefer to secure the bung seat to the sheet metal forming the shell of the cask
in the manner described in my Specification No. 4027 dated the 26th day of
February 1894.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :
A bung seat having circumferentially inclined faces formed ou radial projections
outside or adjacent to the seat, and a bung provided with similarly inclined faces
formed on radial projections on the exterior of the bung as well as a hexagonal
projection or equivalent means for turning the bung, substantially as herein shown
and described.
Dated this 20th day of July 1894.
DRACUP & NOWELL,
Bradford, Agents.