Improved apparatus for Blowing
Year: 1888

page_text: Improve plavus
SIMPSON SHEPPARD Sculptor 10 Alphonsus Avenue Drumcondra FRANCIS HAZLETT,
Accountant 1 O'Connell Avenue and SAMUEL JACKSON CLUFF Tea Merchant
50 Fleet Street all of the County of the City of Dublin Ireland do hereby declare
the nature of this invention to be as follows:-
Improved apparatus for Blowing Glass Bottles Sheet Glass and Glass in every shape
which we call "An Automatic Air Injector" which is fastened with straps to the man
using the Blow Pipe and consisting of springs working inside the Bellows which
keeps the Bellows or Automatic Air Injector continuously. charged and ready to be
discharged by pressure of the elbow and is connected with the Blow Pipe by means
of a suitable Flexible India Rubber or leather tube terminated by a suitable air tight
swivel cap easily attached to head of Blow Pipe.
L: 92de of June 1888

page_text: .
We SIMPSON SHEPPARD, 10 Alphonsis Avenue Dumcondra, Sculptor, FRANCIS
HAZLETT, 1 O'Connell Avenue, Accountant, and SAMUEL JACKSON CLUFF 50 Fleet
Street, Tea Merchant all of the County of the City of Dublin, Ireland 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:
In accordance with our invention we produce simple economical and easily
manipulated apparatus to be employed in the process of blowing glass into various
forms according to the uses for which glass is generally employed such as for instance
into amongst other articles, bottles and vessels of various kinds and in lieu of the
ordinarily followed process of insufflation from the mouth through the well known
blow pipe used in the process of glass blowing.
The apparatus which we employ, comprises an air injector or insufflator attached
by means of a flexible tube and suitable fittings to the ordinary blow pipe. Said
injector or insufflator is actuated by the arm of the operator without in any way
interfering with the usual manipulation of the viscid glass or "metal" (taken from
the furnace) upon the end of the blow pipe, which latter may be rotated and moved
in any desired direction by means of a swivel knuckle or other suitable joint to which
the blow pipe is attached.
In order that our invention may be the better understood we have appended the
accompanying two sheets of drawings in which Figures 1, 2, and 3 illustrate different
forms of the insufflating portion of the device according to our invention, although
we do not restrict ourselves to any special type of insufflator or air injector. Figure 4
shows one form of joint for connecting the flexible tube to the blow pipe. Figure 5
is a view of a universal joint and Figure 6 a view of a knuckle joint to allow of the
free manipulation of the blow pipe. Figure 7 shows an alternative method of
connecting the flexible tube from the insufflator with the blow pipe; and Figure 8
represents the apparatus ready for use.
In carrying out our invention we form an air injector or insufflator A of any
suitable shape, the walls a a of which are preferably of wood, and hinged together at
the lower end b. Upon the edges of the walls a a is stretched and properly secured
thereto so as to ensure an air tight joint, a skin of leather or similar suitable
pliable material B.
A pocket of pliable material similar to that employed upon the.
body of the injector or insufflator is secured upon the hinged,end b (so as to afford
increased strength to that part), thus giving to the insufflator a bellows-like formation.
One or more springs fitted within the body of the injector or insufflator keeps or
keep the bellows-like device expanded and constantly charged with air, which latter
enters through an aperture C formed in one or both walls of the insufflator which is
fitted with a suitable clack valve or equivalent device to serve as a check valve. It is
also provided with a nozzle or nozzles D to allow of the attachment of a flexible
tube E (Figure 8) connected at the other end to the blow pipe F.
Attached to the extremity of the flexible tube E aforesaid is a connecting piece G,
which may be provided with a screw thread c as shown in Figure 4, of such a pitch
as to require only a half turn to ensure a tight joint, the accidental separation of the
connecting piece (i with the blow pipe F being prevented by a small bolt d, which

page_text: latter, when said connecting piece G is screwed home, is shot into a recess or flattened
portion e formed in what would be the mouthpiece of the ordinary blow pipe F; or, as
a modification of the above described method of connection, we may employ a double
catch H (Figure 7) adapted to the metal extension piece G formed of two levers f the
hooked extremities of which engage with a rim or collar 9 secured to the end, or
forming part of the ordinary blow pipe Faforesaid; said levers f being held in position
by means of the springs h fitted beneath the curved ends i of the levers, as shown;
by rings of india rubber, or other elastic material, or by equivalent means. A washer
of india rubber or similar suitable elastic compressible material is interposed between
the connecting piece G and blow pipe F to ensure a perfectly air tight joint.
Attached to the connecting piece G aforesaid, is a universal joint I Figure 5, a
knuckle joint J, Figure 6, or other suitable swivel joint, whereby the blow pipe F
may be rotated and moved in any desired manner and direction during the manipulation
of the globular portion of molten glass or "metal" upon the end of the blow pipe.
In using the apparatus above described, the injector or insufflator A which is
provided with straps j-or other suitable means of fastening passing through cleats k―
is secured to the body of the operator in such a manner as to allow of the expanded
insufflator being compressed by the elbow. The operator then inserts the end of the
blow pipe into the mass of molten "metal" and having obtained from the furnace
the desired quantity, works it upon the "marver" provided for the purpose, and then
after slight expansion by pressing the walls of the injector, the molten "metal" is
placed in the mould. Then upon the operator exerting pressure upon the expanded
insufflator, air is forced into the molten metal aforesaid, which latter fills every portion
of the mould and the bottle, or other article is duly formed; the return of the air into
the insufflator being prevented by the introduction of a check or non-return valve
inserted at K at the delivery end of the flexible'tube E.
By the means which we employ as above described, the blowing of glass may be
effected in a most satisfactory manner and with great rapidity, inasmuch as the pressure
of the injected air is controlled and regulated to suit different conditions and circum-
stances, to be determined by the nature of the article to be produced,-with the
greatest accuracy and precision, and ensuring the thorough distribution of the "metal"
in every case according to the requirements without in any respect interfering with
existing plant or arrangements beyond the alterations above described to the ordinary
blow pipes, or, the blow pipes may be formed in the first instance with said slight
modifications. A further advantage in connection with our improved apparatus is the
facility with which the flexible tube E may be connected with and disconnected from.
the blow pipe, thus ensuring great rapidity and regularity in carrying on the operation
of glass blowing.
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 :-
First In the operation of glass blowing the substitution for the usual method of
insufflation from the mouth through the ordinary blow pipe, of mechanically operated
insufflating or air injecting apparatus substantially as herein set forth.
Second: The connecting devices and attachments substantially as herein described
between the insufflator and the blow pipe.