A New Process or Means for the Production of Chloride of Lime.
Year: 1892

page_text: Date of Application, 25th Oct., 1892-Accepted, 17th Dec., 1892
COMPLETE SPECIFICATION.
A New Process or Means for the Production of Chloride of Lime.
We JAMES MORRIS MILNES of 144, Brooke Road, Stoke Newington, London
Chemical and Mechanical Engineer, and ALFRED MILNES, M.A. (Lond.) F.S.S.
of 22 Goldhurst Terrace, South Hampstead London 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 the manufacture of chloride of lime and consists in
saturating lime with chlorine gas or vapour in a close chamber into which the lime
is fed and stirred or raked while passing from the inlet to the outlet the chlorine
gas or vapour being forced in for saturating the lime while it is being raked. The
chloride of lime so made is collected into barrels or other receptacles without the
necessity of a workman touching it or of exposing himself to the action or fumes of
the chlorine gas.
To carry our invention into practice we place the powdered lime in a receptacle
and by means of a stirrer and a valve we cause the lime to be delivered in regular
quantities on to a movable or a fixed table, in a chamber through which chlorine
gas or vapour passes, the gas, being brought into direct contact with the lime as it
is turned over or its particles shifted for perfect and complete saturation before it
falls into or is carried towards a receptacle placed for the purpose.
We do not limit ourselves to any special apparatus but to enable our invention to
be carried into practice we may feed the lime in powder on to a slate or a glazed
pottery bed, say of circular or rectangular form. Above the bed is a scraper rake
or a series of scraper rakes for gradually turning over and raking the powder lime
from the centre or feeding place to the edge where it becomes deposited for collection
in a receptacle. The chamber in which this mechanical operation is carried on is
of slate or a material not affected by acids. This chamber is provided with apertures
for the feed and the delivery and others for the attachment of pipes for the
admission and exit of chlorine gas or vapour by which the saturation of the lime is
effected during the raking operation which brings every particle into exposure to
the action of the chlorine.
By this invention the entire process of making or converting ordinary slaked
lime to chloride of lime can be carried on without the present and usual hand work
or the necessity of a workman being exposed to the chlorine gas.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. The process of treating powdered (slaked) lime while being raked in a close
chamber with chlorine gas or vapour for saturation and thereby converting ordinary
lime into chloride of lime without manual labour and collecting said chloride of
lime without the necessity of a workman exposing himself to the action or fumes of
the gas, in the manner and substantially by the means or apparatus described.
2. The manufacture of chloride of lime by feeding ordinary slaked line into and
passing it through a close chamber within which during agitation of the lime chlorine
gas or vapour is passed substantially as set forth.
This with d...
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said James Morris Milnes and Alfred Milnes.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said James Morris Milnes and Alfred Milnes.