Improvements in or relating to Apparatus for Blowing or Forming Bottles and other Glass Ware.
Year: 1896

page_text: Date of Application, 1st Oct., 1896-Accepted, 14th Nov., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Blowing or Forming
Bottles and other Glass Ware.
We, DANIEL LAFFAN, of 30 North King Street, Dublin in the County of
Dublin, Bookbinder, GODFREY MOORE of 17 Fownes Street, Dublin, aforesaid,
Merchant, and THOMAS JOSEPH GLYNN of 32 Berkeley Road, Dublin aforesaid,
Stock and Share Broker, 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 has for its object an apparatus for blowing or forming glass
bottles and every description of sheet and hollow glass ware. It will be
understood from the following description, reference being had to the accom-
panying drawing, which shows a general view of our invention.
A, is an airtight tank or chest of suitable size, under which is a small furnace B
to heat the same, C C pipes leading air from the chest A to the flexible pipes D
through the elastic or flexible bag E, the end of each of said pipes D being fitted
with sockets or nozzles for attachment of the blow pipes, for blowing the bottles or
other ware, F are valves in the flexible pipes D so arranged that by pressing them,
the hot blast of air is let free and delivered through the nozzles, or by releasing
the valves, the air blast will be cut off, and thus the blast will be fully under the
control of the operator. G are cranks which work the inflators or air pumps H
for forcing hot air from the chest to the compressed air bag E and the air cannot
return back as there are valves in connection with each of the pipes C. At first
we intended to keep the chest supplied by air by means of a blast fan, the nozzle
of which was to be inserted into the chest so that the pipes C and D were always
inflated ready for use, but we generally prefer its equivalent of the air pumps H
which draw air into the chest where it is heated, compressed and delivered to the
bag E and pipes D. The bag E containing compressed air is elastic or flexible
and when rigidly inflated, rises up to the top of the frame 1, and the valve Jopens
so as to give as much vent as will prevent the elastic bag from bursting. K is a
screw and hand wheel in the top of the frame 1 to keep a downward pressure
always on the bag E and tend to keep the air highly compressed in the bag and in
the tubes D so as to deliver it with force through the nozzles.
The mode of operation as applied to bottle making is by preference as
follows:-
The blow pipes are always kept attached to the nozzles and sockets at the ends
of the flexible tubes D. The operator dips the end of a blow pipe with flexible
tube attached into the pot of melted metal, and manipulates it in such manner that
a plastic lump is formed at its end sufficient to make the required bottle. He then
slightly inflates the plastic lump by pressing the valve F, and introduces the
slightly inflated lump into the mould which he shuts together and now for the
second time depresses the valve F to admit a blast of hot air, and blow the bottle
into the form of the mould. The blast is fully under his control and so enables
bim to form the smallest to the largest sized bottle. This being effected the hot
air is cut off by releasing the valve, the mould opened and the bottle lifted out at
the end of the blow pipe and transferred to the finisher. The apparatus will admit
of one or more workmen operating at the same time, as the bag containing the hot
compressed air is always kept inflated.

page_text: It will be obvious however that this apparatus is admirably suited for blowing
other glass ware besides bottles, and we therefore do not restrict ourselves to
bottles, as it may be used for other objects besides. One, two or more operators
can work together or separately by means of this apparatus, the air can be kept
heated to any degree of temperature as required to suit the metal employed, and
the metal can be more evenly distributed and a better result obtained than by the
old system of blowing with the mouth.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
1. An improved apparatus for use in connection with blowing or forming glass
bottles or other glass ware, consisting of a flexible bag or chamber supplied with
heated air from an air heating appliance, said flexible chamber being provided with
a flexible pipe or pipes, so arranged that they will deliver a current of hot air
through the blow-tube to expand the glass, in combination with a device, such as a
fan or air pump, for supplying air to the chamber, substantially as described.
2. In an apparatus for blowing or forming glass bottles or other glass ware, the
combination with a bag or chamber and flexible pipes containing compressed air,
of valves F, or their equivalent, and nozzles for injecting the air into the blowpipe,
whereby a momentary, continuous or intermittent supply of air can be delivered at
the will of the operator, substantially as described.
3. In blowing or forming glass bottles or other glass ware, the use, in combina-
tion with a blowpipe which is dipped into the melted glass, a plastic lump formed
at the end thereof and introduced into the mould, of an apparatus for blowing
heated air through the blow-tube so as to expand the cooling glass into the form of
the mould, said apparatus comprising an air container, an injection pipe or pipes
for delivering air to the blowpipe or pipes aforesaid, and means for supplying aud
heating the air and delivering it to the air container aforesaid, substantially as
described.
4. In apparatus for blowing or forming bottles, the combination of a compressed
air container having means for delivering a momentary, intermittent or continuous
supply of air to the blowpipe, and a safety valve J for letting off any excess of air
in the container beyond a given pressure substantially as described.
5. The general combined arrangement and construction of parts forming our
improved apparatus, substantially as set forth.
Dated this 30th day of September 1896.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.