Improvements in Cases for Containing Electric Batteries and the like.
Year: 1892

page_text: Complete specification LEIL, TOU July, 1000 ite
PROVISIONAL SPECIFICATION.
71784 7000
Improvements in Cases for Containing Electric Batteries and
the like.
We, ALFRED OBLASSER and CHARLES THÉRYC, both of 95 Boulevard
Beaumarchais, Paris in the Republic of France, do hereby declare the nature of
this invention to be as follows:-
Our invention relates to improvements in the construction of boxes or receptacles
for electric batteries and for other uses. It comprises the application, to the
interior of the box of a special coating designed to render it absolutely tight, and a
translucid cover to enable a person at any moment to observe what takes place in
the interior of the box.
The coating which we use for boxes of electric batteries and also for other
receptacles to be rendered tight is an adherent, insulating coating which is insensible
to the action of electricity and not attacked by acids. We manufacture this
coating by treating cellulose with nitric or sulphuric acid, and we may eventually
add to the material thus obtained camphor or any other suitable substance in the
proportion of from ten to forty per cent. according to requirements.
This mixture, dried in the open air, in a stove or by compression, is then dissolved
either by ethers or by acetic or pyroligneous acids or by acetone or by any other
suitable solvent. It is this solution which constitutes our coating.
We obtain a similar result by dissolving by the same process the waste of
leavings of materials having a base of cellulose.
For using the composition thus obtained as a coating we apply it with a brush,
a spatula, a roller or by any other means to the bottom and sides of the receptacle
to be coated, which may be of wood, metal, fibre, cardboard, paper, fabric,
compressed wood, pulp or any other material.
By mixing our coating with certain substances we may obtain a sort of
agglomerate susceptible of being moulded. In this case the agglomerate is con-
stituted by a paste composed of any suitable solid materials, such as asbestos,
pounded glass or sand-stone sawdust or cork waste, cork powder, metallic powders
or oxides, amylum, resins, pulverized carbon or the like mixed with our above-
mentioned liquid coating. Under these circumstances, instead of rendering a
receptacle of wood or other material tight by the application of our coating we
may manufacture it directly by moulding, use being made of the said agglomerate.
It is evident that our coating or agglomerate may be applied to boxes for
electric batteries, irrespective of their construction, and to receptacles designed for
other uses which are to be insulated and rendered tight impermeable and unattackable
by acids, and also to any materials to which these properties are to be imparted
such as for example fabrics.
The cover which we employ for receptacles rendered tight by the application of
our coating is constituted in the following manner:
A sheet of transparent celluloid is stretched beneath a frame which covers the
upper edge of the sides and partitions of the box. This sheet is fixed upon the box.

page_text: by bolts and nuts of celluloid, ebonite or other similar material, the joint being
made by a band of flexible indiarubber.
In this manner we obtain a light cover, the construction of which enables a
person to observe the behaviour of the substances placed in the interior of the
receptacle tightness -being ensured without interposition of metal, which possesses
a great advantage. In lieu of celluloid we may use a sheet of any other unattackable
material, such as indiarubber, ebonite, vulcanized fibre or the like; but we should
then forfeit the advantages gained by the translucid celluloid cover.
We may
apply this kind of cover not only to boxes for electric batteries, which are rendered
tight by the employment of our coating, but also to receptacles designed to contain
corrosive liquids or fluids.
i
i
F
COMPLETE SPECIFICATION.
Improvements in Cases for Containing Electric Batteries and
.:
the like.
We, ALFRED OBLASSER. and CHARLES THÉRYC, both of 95 Boulevard
Beaumarchais, Paris, in the Republic of France, 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:
Our invention relates to improvements in the construction of boxes or receptacles
for electric batteries and for other uses.
Our said invention comprises the application, to the interior of the box, of a
special coating designed to render it absolutely tight, and a translucid cover
enabling a person at any moment to observe what takes place in the interior of
the box.
In the accompanying drawing we have shown by way of example, an electric
battery box constructed according to our invention.
Figure 1 is a longitudinal section, of our improved box.
Figure 2 is a plan of the same.
Figure 3 is an end view thereof.
The coating which we use for boxes of electric batteries and also for other
receptacles to be rendered tight is an adherent, insulating coating which is
insensible to the action of electricity and not attacked by acids. We manufacture
this coating by treating cellulose with nitric or sulphuric acid, and we may
eventually add to the material thus obtained camphor or any other suitable
substance in the proportion of from ten to forty per cent. according to requirements.
This mixture, dried in the open air, in a stove or by compression, is then dissolved
either by ethers or by acetic or pyroligneous acids or by acetone or by any other
suitable solvent. It is this solution which constitutes our coating.
We obtain a similar result by dissolving by the same process the waste or
leavings of materials having a base of cellulose.
For using the composition thus obtained as a coating we apply it with a brush, a
spatula, a roller or by any other means to the bottom and sides of the receptacle to
be coated, which may be of wood, metal, fibre, card board, paper, fabric, compressed
wood pulp or any other material.
By mixing our coating with certain substances we may obtain a sort of
agglomerate susceptible of being moulded. In this case the agglomerate is
constituted by a paste composed of any suitable solid materials, such as asbestos,
pounded glass or sand-stone, sawdust or cork waste, cork powder, metallic powders
or oxides, amylum, resins, pulverized carbon or the like mixed with our above-

page_text: emntioned liquid coating. Under these circumstances, instead of rendering a
receptacle of wood or other material tight by the application of our coating we may
manufacture it directly by moulding, use being made of the said agglomerate.
It is evident, that our coating or agglomerate may be applied to boxes for
electric batteries, irrespective of their construction, and to receptacles designed
for other uses which are to be insulated and rendered impermeable and inattackable
by acids, and also to auy materials to which these properties are to be imparted,
such as for example fabrics.
The cover which we employ for receptacles rendered tight by the application of
our coating is constituted in the following manner:
A sheet B of transparent celluloid is stretched beneath a frame A which covers
the upper edge of the sides and partitions of the box. This sheet is fixed upon the
box by bolts and nuts C of celluloid, ebonite or other similar material, the joint
being made by a band of flexible indiarubber.
In this manner we obtain a light cover, the construction of which enables a
person to observe the behaviour of the substances placed in the interior of the
receptacle, tightness being ensured without interposition of metal, which possesses
a great advantage. In lieu of celluloid we may use a sheet of
any other
inattackable material, such as indiarubber, ebonite, vulcanized fibre or the like ;
but we should then forfeit the advantages gained by the translucid celluloid cover.
We may apply this kind of cover not ouly to boxes for electric batteries which are
rendered tight by the employment of our coating, but also to receptacles designed
to contain corrosive liquids or fluids.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
The improved box or receptacle provided with a translucid hermetic joint,
hereinbefore described for electric batteries and for other purposes characterized by
the employment of a coating formed of a mixture of cellulose treated by sulphuric
or nitric acid with camphor, this mixture, which may be replaced by the waste or
cuttings of materials having a base of cellulose, when dry, being then dissolved in
an ether or in acetic or pyroligneous acids or in acetone; and by the employment
of a sheet of transparent celluloid arranged below a frame of wood covering the
upper edges of the sides and partitions of the box.
Dated this 13th day of July 1893.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.