An Improvement or Improvements in Tinning Cast Iron Hollow-ware.
Year: 1892

page_text: Date of Application, 4th Apr., 1892
Complete Specification Left. 8th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
An Improvement or Improvements in Tinning Cast Iron
Hollow-ware.
I, FREDERICK RYLAND of Houghton Street West Bromwich, in the County of
Stafford Ironfounder do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to give a more brilliant appearance to the tinned
interior of hollow ware than that produced by the tinning process as ordinarily
conducted and my said invention consists in conducting the latter part of the said
process in the manner hereinafter described.
In order that my invention may be the better understood I remark that the
vessel the interior of which is to be tinned after it has been turned has melted tin
poured into it which melted tin is rubbed over the interior of the vessel by the
workman by means of cork and after the tinning of the surface has been effected
the vessel is cooled for the purpose of solidifying the tin. In the ordinary method
of tinning hollow-ware the cooling of the article is effected by depressing the vessel
in water to nearly its whole depth. The water cools the tinned vessel and sets the
coating of tin." According to my invention I effect the cooling of the vessel during
the latter part of the tinning process by the employment of the volatile bituminous
oil used for burning in lamps known in commerce as petroline. The cooling of the
vessel takes place more slowly when petroline is used than when water is used and
the tin, takes a more brilliant surface owing to the slower cooling than during the
more rapid cooling effected by water.
Although I have found that the volatile oil called petroline answers well in
practice yet other volatile oils of a like nature may be employed with like effect.
The said oils are all volatile liquid hydrocarbons, and besides being obtained by
treatment of the crude petroleum oils found in nature are produced artificially by
the distillation of bituminous shales and in the manufacture of coal gas.
Or instead of the volatile oils described fixed oils such as linseed oil, colza oil
and the like may be employed; I prefer however to use petroline or analogous
volatile oil as fixed oils are more or less decomposed by the heat and give off an
offensive odour.
Thind the 4th day of April 1892.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improvement or Improvements in Tinning Cast Iron
Hollow-ware.
I, FREDERICK RYLAND of Houghton Street, West Bromwich, in the County of
Stafford Ironfounder do hereby declare the nature of my invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
The object of my invention is to give a more brilliant appearance to the tinned
interior of cast iron vessels and articles of the kind commonly called hollow-ware
than that produced by the tinning process as ordinarily conducted; and my said
invention consists in conducting the latter part of the tinning process in the manner
hereinafter described.
In order that my invention may be the better understood I remark that the

page_text: vessel or article the interior of which is to be tinned after it has been turned has
melted tin poured into it which melted tin is rubbed over the interior of the vessel
by the workman by means of cork and after the tinning of the surface has been
thus effected the vessel is cooled for the purpose of solidifying the tin. In the
ordinary method of tinning hollow ware the cooling of the article is effected by
depressing the vessel in water to nearly its whole depth. The water cools the
tinned vessel and sets the coating of tin. According to my invention I effect the
cooling of the vessel during the latter part of the tinning process by the employment
of the volatile bituminous oil used for burning in lamps known in commerce as
petroline. The cooling of the vessel takes place more slowly when petroline is
used than when water is used and the tin takes a more brilliant surface owing to
the slower cooling than during the more rapid cooling effected by water.
Although I have found that the volatile oil called petroline answers well in
practice yet other volatile oils of a like nature may be employed with like effect.
The said oils are all volatile liquid hydrocarbons, and besides being obtained by
treatment of the crude petroleum oils found in nature are produced artificially by
the distillation of bituminous shales and in the manufacture of coal gas.
Or instead of the volatile oils described fixed oils such as linseed oil, colza oil
and the like may be employed, or a mixture of a volatile and a fixed oil;
I prefer
however to use petroline or analogous volatile oil as fixed oils are more or less
decomposed by the heat and give off an offensive odour. In employing volatile or
fixed oils or a mixture of volatile and fixed oils in place of water for cooling the
vessel or article in the tinning process, I proceed as in the ordinary process. The
volatile or fixed oils which I employ for cooling the vessel or article under operation
during the latter part of the tinning process are more imperfect conductors of heat
than water and abstract heat from the vessel or article under treatment more
slowly than water does.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that I claim
as my invention of "An improvement or improvements in tinning cast iron hollow-
"
ware :-
Cooling the vessel or article under treatment in the latter part of the tinning
process by the employment of volatile oil or fixed oil or a mixture of volatile and
fixed oils substantially as hereinbefore described.
Dated the Sixth dex of December 1802
FRED. RYLAND.