Improvements in the Manufacture of Glass Retorts as used in Chemical Works for the Concentration of Acids and other analogous purposes.
Year: 1890

page_text: Date of Application, 31st Oct., 1890
Complete Specification Left. 31st July, 1891-Accepted, 31st Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Glass Retorts as used in
Chemical Works for the Concentration of Acids and other
analogous purposes.
I THOMAS GEORGE WEBB of Varley Street, Oldham Road, Manchester, Glass
Manufacturer do hereby declare the nature of my said invention to be as follows:-
The object of this invention is to produce a chemical manufacturer's retort
which shall be of the same thickness of glass throughout instead of being thicker
towards the shoulder and mouth as heretofore and which consequently in use
shall be stronger, more durable and capable of more wear and tear than retorts as
hitherto constructed.
In performing my invention instead of blowing the neck first and of a tapered
form to fit the outsides of the usual arms or adapters and which has necessitated
the neck being blown first and the article being re-heated several times in the
course of its production and as a consequence to be blown thinner and thinner
towards the bottom of the retort-in accordance with my improvements I blow
the necks parallel and shorter than heretofore. This permits me to blow the neck
and body portion of the retort all at one heat whereby practical uniformity is
obtained in the thickness of the metal and a considerable saving of time is effected
in the production of a retort.
Dated this 30th day of October 1890.
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Glass Retorts as used in
Chemical Works for the Concentration of Acids and other
analogous purposes.
1, THOMAS GEORGE WEBB of Varley Street, Oldham Road, Manchester, Glass
Manufacturer, do hereby declare the nature of my said 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 this invention is to produce a chemical manufacturer's retort
which shall be of the same thickness of glass throughout instead of being thicker
towards the shoulder and mouth as heretofore and which consequently in use shall
be stronger more durable and capable of more wear and tear than retorts as
hitherto constructed.
On the accompanying drawing
Fig. 1 is a transverse sectional view of my improved glass retort, the metal
being of an even thickness throughout.
In performing ny invention I take the desired quantity of metal from the
furnace equal to that which shall make the the finished retort and at once shape
the neck A in its orginal heated state by hanging the metal downwards which
draws out the neck to the required length and to a form tapering outwards as
illustrated on the accompanying drawings instead of by rolling and shaping the
neck on the edge of a plate by a series of heatings and to a shape tapering
inwards as indicated by the dotted lines in Fig. as heretofore whilst the
remaining portion of the retort is reheated, rolled and shaped, and simultaneously
blown to the desired form and size,

page_text: the neck almost parallel or of a shape tapering outwards into
which fits the ordinary arm or adapter B the necessity of reheating the neck several
times is avoided and the retort is blown of even thickness throughout thereby
rendering it easier to produce, more durable and stronger, and more capable of
wear and tear than retorts as hitherto constructed as aforesaid.
Having thus particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed declare that what
I claim is :-
1st. The improved manufacture of glass retorts substantially as hereinbefore
described and illustrated on the accompanying drawing.
Dated this 30th day of July 1891.
JOHN G. WILSON,
Agent for the Applicant.