IMPROVEMENTS IN THE MANUFACTURE OF GLASSES HAVING RIMS FOR SUSPENSION IN LAMPS SUBJECTED TO A HIGH TEMPERATURE
Year: 1884

page_text: I FRANCIS HERBERT WENHAM, of Goldhawk Road, Shepherds Bush in the
County of Middlesex, Engineer, do hereby declare the nature of said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF GLASSES HAVING RIMS FOR SUSPENSION IN
LAMPS SUBJECTED TO A HIGH TEMPERATURE' to be as follows:-
"
This Invention relates to glasses which are formed with rims whereby they are
suspended in lamps subjected to a high temperature-The rims of such glasses have
hitherto been formed by turning over the top edge of the glass-According to my
Invention I take a glass which may be shaped like an ordinary shade glass of any
required length and around the upper part or edge of this glass I fix a rim by means
of soluble glass, water glass, or silicate. of soda with which is combined an
incombustible material such for example as asbestos fibre or asbestos paper or
millboard or metal or wire gauze-The incombustible material may be applied in
the form of strips, bands, or layers caused to adhere by the silicate of soda; but I do
not limit myself to this mode of applying the said materials, as for example a mass
or strip may be made of incombustible fibres mixed with silicate of soda. The
rim may be bound to the glass temporarily until it has become sufficiently hardened
to adhere firmly-After the rim thus made and attached to the glass has dried, it
may be exposed to any ordinary degree of heat, by which it becomics further
hardened and adheres firmly to the glass at all temperatures to which it is
subjected.
Dated this 5th day of April 1004
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent for the said Francis Herbert Wenham.

page_text: I FRANCIS HERBERT WENHAM of Goldhawk Road Shepherds Bush in the
County of Middlesex Engineer do hereby declare the nature of my invention for
"IMPROVEMENTS IN THE MANUFACTURE OF GLASSES HAVING RIMS FOR SUSPENSION IN
LAMPS SUBJECTED TO A HIGH TEMPERATURE" 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 glasses which are formed with rims whereby they are
suspended in lamps subjected to a high temperature. The rims of such glasses have
hitherto been formed by turning over the top edge of the glass. According to my
Invention I take a glass which may be shaped like an ordinary shade glass of any
required length, and around the upper part or edge of this glass I fix a rim by means
of soluble glass, water glass, or silicate of soda with which is combined an
incombustible material such for example as asbestos fibre or asbestos paper or
millboard or "slag wool" or metal or wire gauze-The incombustible material may
be applied in the form of strips bands or layers caused to adhere by the soluble
glass, water glass, or silicate-of-soda-but-I-do-not-limit-myself_to_this_mode_of_
applying the said materials as for example a mass or strip may be made of
incombustible fibres or material mixed with soluble glass, water glass or silicate of
soda. The rim may be bound to the glass temporarily until it has become sufficiently
hardened to adhere firmly. After the rim thus made, and attached to the glass has
dried, it may be exposed to any ordinary degree of heat by which it becomes
further hardened and adheres firmly to the glass at all temperatures to which it is
subjected.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what I
claim is:-
In manufacturing glasses with rims, forming the rim by means of asbestos or
other incombustible material in conjunction with soluble glass, water glass or silicato
of soda substantially as herein before described.