Improvements in Automatical Apparatus for Decomposing Carbide of Calcium.
Year: 1895

page_text: Date of Application, 26th Aug., 1895-Accepted, 29th Sept., 1895
COMPLETE SPECIFICATION.
Improvements in Automatical Apparatus for Decomposing Carbide of
Calcium.
I, HARALD GABE, of Monradsvej 13, Copenhagen, in the Kingdom of Denmark,
Civil 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 consists of an automatical apparatus for decomposing carbide of
alcium.
The apparatus, which on the accompanying drawing partly is shown in
profile (Fig. 1) and as seen from above (Fig. 2), consists of a reservoir, a, inside
of which another removable reservoir, b, is placed, the latter having an upright
perforated tube, c, placed in the middle.
The reservoir a is closed by a cover, d, which on the underside is supplied with
a packing, d, fitting the upper rim of the reservoir against which the cover, being
turnable around a hinge, f, is pressed down by means of the hand-screw e.
Two tubes, and k, are screwed into the cover; through the tube ? water is led
from the water-tank h, which as the water must have a certain pressure-
eventually may be placed a little higher.
The reverse-valve, j, ou the tube y shuts off the water-supply whenever the
pressure in the reservoir a exceeds the pressure in the water-tank.
The tube k, which opens out into the gasometer l, is supplied with a stop-cock m,
that by means of rods is in connection with the gasometer so that it is shut
respectively opened by the upward or downward movement of the gasometer.
On the drawing this stop-cock is shown open so that the gas developed by the
carbide of calciuin may enter into the gasomieter; when this latter owing to the
pressure of the gas raises itself the stop-cock will gradually be closed and thus shut
off the gas-supply.
The pressure in the reservoir a will then increase and the reverse-valvej con-
sequently shut off the water-supply and the pressure having reached a certain
maximum the developed gas will through the safety-valve o, placed on the tube k,
pass into the gasometer l.
When the amount of water, which at the shutting of the valve m still remained
on the carbide of calcium, has been consumed, the development of gas will stop
until gas from the gasometer is being consumed and the gasometer moving down-
wards opens the cock and the pressure in the reservoir a being reduced below that
of the pressure in the water-tank h, a new infusion of water takes place and so on
until the carbide of calcium is completely decomposed, only slaked lime remaining
in the reservoir.
and the hand-screw e
taken out.
The cock on the tube g is then closed, the screws and
P
loosened, the cover d is opened and the removable reservoir
After being cleaned and refilled with carbide of calcium, the reservoir is again
closed and the development of gas may again take place.
On the drawing the reservoir is shown placed in a water-container that serves to
draw off the heat developed through the decomposition.
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 :-
1. An automatical apparatus for decomposing carbide of calcium, characterized