Improvements in Preparing Calcium Carbide for Use in the Manufacture of Acetylene.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Preparing Calcium Carbide for Use in the
Manufacture of Acetylene.
I, EDWARD SAMUEL BOND, of Crown Works, Booth Street, Handsworth, in the
County of Stafford, Engineer, do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements in means for carrying and storing
carbide of calcium, and chiefly intended to form packets, cartridges, or the like,
into which the carbide is packed ready for placing in the generators of acetylene
gas apparatus, and which when the charge is used, may be readily removed.
According to this my invention I make a spiral or coil of wire of any suitable
form, of the required diameter and length, having at the lower end a bottom
which is preferably formed by the end of the wire itself, but may be otherwise
made. A paper or other suitable bag (or cylinder) is now placed either without
or within such spiral or coil, preferably within and of a length equal to the coil
spring when the latter is compressed to or about its closed position, the ends of
the bag being held closed by the ends of the coil, but capable of extension under
the expansion of the carbide when gas is being generated. In some cases from
the sides of the coil, are a number of spikes, prongs, plates, or the like, pene-
trating into the carbide which may if desired be secured to the said wire of the
coil. The purpose of such spikes &c. being to loosen or open as it were the
carbide at various parts under the expansive force of the coil and the gas, so that
the water may more readily and evenly find its way towards the centre of the
body of carbide.
It will be readily seen that when in the generator and when the carbide has
been used up, the removal of the wire coil, which has become expanded, brings
away with it the refuse from the charge, so that the chamber is thereby cleaned
ready for a recharge.
Dated this 4th day of November 1898.
CHARLES T. POWELL,
Applicant's Agent.
Improvements in Preparing Calcium Carbide for Use in the
Manufacture of Acetylene.
I, EDWARD SAMUEL BOND, of Crown Works, Booth Street, Handsworth, in the
County of Stafford, 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 means for carrying and storing
ΓΙ
077

page_text: carbide of calcium, and chiefly intended to form packets, cartridges, or the like,
into which the carbide is packed ready for placing in the generators of acetylene
gas apparatus, and which when the charge is used, may be readily removed.
According to this my invention I make a spiral or coil of wire of any suitable
form, of the required diameter and length, having at the lower end a bottom
which is preferably formed by the end of the wire itself, but may be otherwise
made. A paper or other suitable bag (or cylinder) is now placed either without
or within such spiral or coil, preferably within and of a length equal to the coil
spring when the latter is compressed to or about its closed position, the ends of
the bag being held closed by the ends of the coil, but capable of extension under
the expansion of the carbide when gas is being generated. In some cases from
the sides of the coil, are a number of spikes, prongs, plates, or the like, pene-
trating into the carbide which may if desired he secured to the said wire of the
coil. The purpose of such spikes &c. being to loosen or open the carbide at
various parts under the expansive force of the coil and the gas, so that the water
may more, readily and evenly find its way towards the centre of the body of
carbide.
an
In order to more clearly explain this my invention, I have appended hereunto
illustrative drawing upon which are figures and reference numbers, in
which:-
Fig. 1, shows a cartridge coil partly in section and partly in elevation accord-
ing to this my invention.
Fig. 2, is an end view showing the said end made with the wire.
Fig. 3, is a sectional view in elevation, and Fig. 4 a plan view of an end for
the cartridge coil made from sheet metal.
Figs. 5 and 6 illustrate in plan and side views one form of loosening prong
or plate which may be used in the cartridge.
8, is a spiral coil of wire, whose diameter and length may be made according
to requirement. The one end, (lower) end 9, is conveniently formed of the wire
itself, as shown in Fig. 2. The upper end may if desired be formed in a similar
manner to the lower end, in which case the said end would be bent upwards as
seen at 9, to permit of the charge being placed in the case, and then be closed
down. In such turned down position, the ends may be further secured if desired
by tying wire or the like. If desired however I may make such ends from sheet
metal, similarly to that shown at 9b, in Figs. 3 and 4, in which are formed
loops 10, around its sides, through which the last coil may be threaded for attach-
ment. 11, 11, are perforations for escape of gas, or passage of water. 12, is a
paper or other suitable bag which is preferably placed within the cylindrical
coil 8, within which is put the carbide.
It will now be understood that when in use, the carbide will expand under the
action of the water, and in so doing the spring coil 8, will yield with it, and in
its accompanying movement will effectually prevent clogging upon the sides,
inasmuch as the expansive force of the carbide compels clongation of the coil
which latter has a breaking or cutting up action along, its sides.
In some cases I may further provide prongs 13, or the like, which may be
thrust into the charge between the coils, so that as expansion is taking place such
prongs shall assist to break up the cenral part of the charge, and thereby
facilitate the admission of water to such central part.
It will be readily seen that when in the generator and when the carbide has
been used up, the removal of the wire coil, which has become expanded, brings
away with it the refuse from the charge, so that the chamber is thereby cleaned
ready for a recharge.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. Constructing a carbide of calcium cartridge. by means of a spiral coil of

page_text: wire 8, having involute spirally coiled ends as set forth and shown in Figs. 1
and 2.
2. In a carbide of calcium cartridge the combination comprising a spiral coil
body 8, with one or both ends made of metal substantially as set forth and shown
in Figs. 3 and 4.
3. The combination in an expansible calcium carbide cartridge of the
prongs 13, 13, or their like substantially as set forth and shown.
Dated this and dore of two 1800
CHARLES T. POWELL,
Applicant's Agent.
158, Edmund Street, Birmingham.