IMPROVEMENTS IN CLOSING OR COVERING DRUMS OR CASKS FOR CONTAINING CAUSTIC SODA AND OTHER LIKE SUBSTANCES, AND IN THE APPARATUS EMPLOYED THEREIN
Year: 1879

page_text: LETTERS PATENT to Frederick Harry Mort, of Widnes, in the County of
"
Lancaster, Alkali Manufacturer, for the Invention of IMPROVEMENTS IN
CLOSING OR COVERING DRUMS OR CASKS FOR CONTAINING CAUSTIC SODA
AND OTHER LIKE SUBSTANCES, AND IN THE APPARATUS EMPLOYED THEREIN."
Sealed the 26th August 1879, and dated the 4th June 1879.
PROVISIONAL SPECIFICATION left by the said Frederick Harry Mort at
the Office of the Commissioners of Patents on the 4th June 1879.
FREDERICK HARRY MORT, of Widnes, in the County of Lancaster, Alkali
Manufacturer. "IMPROVEMENTS IN CLOSING OR COVERING DRUMS OR CASKS FOR
CONTAINING CAUSTIC SODA AND OTHER LIKE SUBSTANCES, AND IN THE APPARA-
TUS EMPLOYED THEREIN."
My Invention relates partly to the method of closing or covering drums or casks
for containing caustic soda and other like substances, in respect of which I obtained
former Letters Patent, dated the 10th day of December 1878, N° 5052, but my
present Invention is also applicable separately from or independently of my said
former Invention.
In carrying out my said Invention, it has been found convenient to connect the
pendent projection employed to the lid by passing it through a hole therein.
According to my present Invention, I utilize this hole as a means of securing an
independent fastening when the original fastening has been disconnected or detached
in opening and removing some of the contents of the drum for the purpose of
obtaining samples. The fastening which I propose to use when reclosing the drum
consists of a bar or plate perforated with a small aperture in its centre, and which
is attached to the underside of the lid by means of a screw bolt passing through
the same and through the hole in the lid, and secured by a nut on the exterior,
the lid being by preference formed with a flange or projection on its underside.
The plate or bar is bent or turned upwards at each end, so as to engage
beneath
the metal of the head of the drum surrounding the opening, it being placed in
position when loosely attached to the lid, and then firmly secured by tightening the
nut, thus effecting a perfect closure of the drum.
This fastening may also be applied to drums other than those with which the
fastening which forms the subject of my said former Letters Patent is employed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frederick Harry Mort in the Great Seal Patent Office on the
4th December 1879.
FREDERICK HARRY MORT, of Widnes, in the County of Lancaster, Alkali
Manufacturer. "IMPROVEMENTS IN CLOSING OR COVERING DRUMS OR CASKS FOR
CONTAINING CAUSTIC SODA AND OTHER LIKE SUBSTANCES, AND IN THE APPARA-
TUS EMPLOYED THEREIN."
My said Invention relates partly to the method of closing or covering drums or
casks for containing caustic soda and other like substances, in respect of which I
obtained former Letters Patent, dated the Tenth day of December, One thousand
eight hundred and seventy eight, N° 5052, but my present Invention is also
applicable separately from or independently of iny said former Invention.
In carrying out my said former Invention, it has been found convenient to con-
nect the pendent projection employed to the lid or cover of the drum or cask by
passing it through a hole therein. According to my present Invention, I utilize
this hole as a means of securing an independent fastening when the original
fastening has been disconnected or detached in opening and removing some of
the contents of the drum or cask for the purpose of obtaining samples thereof.
The fastening which I use when reclosing the drum or cask consists of a
plate or bar perforated with a small aperture in its centre, and which is
attached to the underside of the lid or cover by means of a screw pin or bolt
passing through the same and through the hole in the lid or cover, and secured by
a nut on the exterior, the lid or cover being, by preference, formed with a flange or
projection on its underside. The plate or bar is bent or turned upwards at each
end so as to engage beneath the metal of the head of the drum or cask surrounding
the opening, it being placed in position when loosely attached to the lid or cover,
and then firmly secured by tightening the nut, thus effecting a perfect closure of
the drum or cask.
This fastening may also be applied to drums or casks other than those with
which the fastening which forms the subject of my said former Letters Patent is
employed.
And in order that my said Invention may be fully understood I shall now
proceed more particularly to describe the same, and for that purpose shall refer to
the several Figures on the annexed Sheet of Drawings, the same letters of reference
indicating corresponding parts in all the Figures.
Figure 1 of the accompanying Drawing represents a vertical section of a drum or
cask for containing caustic soda, with the lid or cover secured thereon by means of
the fastening which forms the subject of my present Invention. Figure 2 is a
horizontal section of the drum or cask, shewing the lid or cover and the fastening
viewed from the inner or underside, and Figure 3 represents the plate or bar, herein-
before referred to, detached.
A (Figures 1 and 2) is the drum or cask; A', its upper end or head having
therein an opening a, closed by a lid or cover B, which is secured to the head A¹ in
the following manner:-In the centre of the lid or cover is formed a small hole,
through which passes the smooth portion of a screw pin C, the head c of which is
on the underside of the lid or cover, whilst the upper screwed extremity of the said
pin carries a nut b. The head c of the pin C supports the plate or bar 1) (shewn in
detail in Figure 3), which is bent or turned upwards at its extremities d, d, in such
a manner that when in its fastening position the ends d, d, will press against the
underside of the head A' of the drum or cask as the nut bis screwed down on the 5
screwed extremity of the said pin. In applying the lid or cover B to the drum or
cask, the plate or bar D is loosely connected to the lid or cover by means of the
screw pin C and nut b, the ends d,d, of the plate or bar are then passed beneath
the metal surrounding the opening a in the head A², the lid or cover itself covering

page_text: the said opening, after which, by the act of tightening the nut b, the bent extremi-
ties d, d, of the plate or bar are forced against the underside of the head A¹ of the
drum or cask, thereby drawing the lid or cover B into intimate contact with the
bead A, and effecting a perfect closure of the drum or cask.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion, that what I consider to be novel and original,
and therefore claim as the Invention secured to me by the herein before in part
recited Letters Patent is,-
Closing or covering drums or casks for containing caustic soda and other like
substances, substantially in the manner and by the means hereinbefore described.
In witness whereof, 1, the said Frederick Harry Mort, have to this my
Specification set my hand and scal, this Twenty-eighth day of November,
One thousand eight hundred and seventy-nine.
FRED. H. MORT. (L.S.)
H,