Improvements in and relating to Bushes for Bung-holes and Tap- holes of Casks or Barrels.
Year: 1891

page_text: Date of Application, 24th Feb., 1891
Complete Specification Left, 23rd Nov., 1891-Accepted, 24th Dec., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by WILHELM KROMER, of Freiburg, Baden, in
the Empire of Germany.]
Improvements in and relating to Bushes for Bung-holes and Tap-
holes of Casks or Barrels.
1, HENRY HARRIS LAKE of the firm of Haseltine Lake & Co. Patent Agents,
45 Southampton Buildings in the County. of Middlesex do hereby declare the
nature of this invention to be as follows:-
This invention relates to bushes for bung-holes and tap-holes of casks or barrels.
According to the aforesaid invention such bushes are made of a single piece and
provided with taper flanges, and they are fixed by pressing two suitably prepared
staves from two sides between the said taper flanges.
The well-known bushes having sharp screw-threads upon the bush tube are of
course not patentable as bushes, but their insertion by pressing them between two
cask or barrel staves is new and therefore included in the scope of this invention
inasmuch as the ribs constituting the screw threads present taper surfaces.
The bushes having taper flanges which must be regarded as new are chiefly
characterized by the fact that the taper threads or grooves extending around the
bush tube are annular, that is to say they are not continuous so as to form a spiral
as in the case of the well-known bushes provided with an exterior screw thread for
enabling them to be screwed into the bung-holes or tap-holes.
Packing may be placed between the several flanges of the bushes, and the latter
may possess longitudinal ribs for precluding the escape of the packing material
between the two staves.
Moreover the outer flanges may be provided at their end with a knife edge
adapted to be pressed into the wood of the staves.
Dated this 24th day of February 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Bushes for Bung-holes and Tap-
holes of Casks or Barrels.
I, HENRY HARRIS LAKE of the firm of Haseltine Lake & Co., Patent Agents,
45 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 bushes for bung-holes and tap-holes of casks or barrels.
This invention consists chiefly in the construction of a bung-hole or tap-hole
bush made of a single solid piece, which on the outside at the point where it comes
in contact with the wood has taper flanges, a pressing surface extending obliquely
around the bush tube, that is to say, is formed exteriorly in such a manner that
when two staves suitably prepared are forced from two sides in the horizontal
direction against these forms the latter exert a vertical pressure upon the stave
wood and thereby produce a durable fastening and tight joint between the wood and
the bush.
Therefore the bushes with taper flanges which must be considered new are
principally characterized by the fact that their taper threads or grooves are closed

page_text: exteriorly around the bush tube and do not extend without being closed as a
spiral, as is the case with the known bushes having outer threads for screwing
them in.
In the accompanying drawing
Figures I and II. show a plan and elevation of a metallic bung-hole or tap-hole
bush which has two broad rims or flanges 3 which are tapered interiorly; the two
staves' on the left and 1 on the right are previously cut so that when they are
pressed against the bush, the wood which is wedged in between the flanges 3 will
be considerably compressed by these.
The stave 1 on the left is shown in the pressed-in state and the stave 1 on the
right in the state prior to the pressing in. The knife-shaped ring 4 cast on the
bush tube Figure 1. presents also taper surfaces to the wood and forces
the same by its wedge action still further together, and forms a further tight
joint by itself.
To prevent in these bushes with taper flanges a packing of minium or other
packing or insulating material, which is resistant against heat or is a non-conductor
of heat, being allowed to escape at the joint between the two bung-hole or tap-hole
staves, I provide on the bush between the taper flanges as shown in Figure II.
axial shaped tightening ribs 5:
The plan Figure II. shows the cross section in which 6 is the space for the
packing. The taper flanges may also be arranged as shown in Figure III, so that
taper grooves are formed which however do not extend spirally as in a screw
thread but so that each constitutes a closed space by itself; an asbestos string 7 or
other packing for the described purpose may be inserted without liability of escape
or displacement in the pressing, such as is the case with screw threaded bushes.
To still further increase the tightness produced by a bush with taper flanges, I
may arrange, as shown in Figure IV. at the end of the taper flanges a more or
less sharp edge which is pressed into the stave wood after it has been forced
between the taper flanges.
In the drawing the right half represents the flange before the bending, the left
half after the bending.
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 I
claim is
The herein described bung hole and tap-hole bushes for barrels or casks made of
a single piece with taper flanges as described with or without T shaped ribs on the
bush tube, with or without a sharp edge at the outer flanges for the purpose of
pressing the cask or barrel staves upon them.
4
Dated this 23rd day of November 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.