Improvements relating to the Manufacture of Insulators and other Glass Articles and to Apparatus for use in such Manufacture.
Year: 1889

page_text: Date of Application, 14th Nov, 1889
Complete Specification Left, 13th Sept., 1890-Accepted, 25th Oct., 1890
Improvements relating to the Manufacture of Insulators and other
Glass Articles and to Apparatus for use in such Manufacture.
I, DAN RYLANDS, of Shepcote, near Barnsley, in the County of York, Glass
Bottle Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention has for its object the manufacture of moulding, more rapidly than
hitherto and by labour-saving apparatus, of glass articles and especially of such
articles as require a large body of glass in proportion to their size, as for instance
insulators, insulating jockeys, and other articles in glass ware made principally if
not altogether by casting, moulding or pressing the glass in suitably shaped moulds.
In carrying my said invention into practice, 1 take an iron or other table of any
suitable shape and I fix theroon, or attach thereto, or place in suitable holes therein
any required number of moulds, such moulds being shaped internally to correspond
to the external shape of the glass article to be made. In some cases, I rotate the
table on which, or into which the moulds are placed or fixed. This rotation may
be effected by a suitable clutch or pinion wheel operating a crank, or other suitable
motion underneath, or at the side of and connected to the table, or in any other
suitable manner. In other cases, the table may be stationary and the moulds may
be caused to travel over it. In some cases, it may be advantageous to substituto
a plate for the table, which plate may be moved horizontally or otherwise as
required. In either case, the mould for receiving the molten glass is brought into
such a position that the glass may be run in from a suitable syphon arrangement. I
prefer to adapt the moulds to such syphon arrangement; where, however, this is
impracticable or undesirable, the molten glass may be ladled into the moulds by
hand. Immediately the necessary quantity of molten glass has been Indled or run
into the mould, the said mould is moved or passed under a plunger, which plunger
may be made to either go through the molten glass, or simply to slightly press
thereon as may be required. In some cases, instead of moving the mould containing
the molten glass under the plunger, I move the plunger over such mould and bring
it down thereupon or therein as far as may be required. The plunger is then lifted
clear of the mould, and the said mould containing the pressed or cast or formed glass
article is passed on and brought over a treadle or other suitable lifting arrangement,
which lifts the bottom of the mould to such a height as to raise the glass article either
above, or level with the upper surface of the table, and so soon as the glass is
properly set or cooled, the article can be removed to the annealing kiln. In some
cases, 1 withdraw portions of the mould before removing the glass article therefrom.
1 sometimes provide a crank or other suitable mechanical arrangement for pushing
the glass article (as it lays level with the table) into the taking-in shovel or into or
upon an endless metal band, which carries the glass article forward to the annealing
kiln. In some cases the mould is in halves and I open and close it horizontally
or otherwise by means of a toggle joint movement or other suitable mechanical
arrangement.

page_text: COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Insulators and other
Glass Articles and to Apparatus for use in such Manufacture.
I, DAN RYLANDS, of Shepcote, near Barnsley, in the County of York, Class Bottle
Manufacturer, 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:-
My invention has for its object the manufacture of moulding. more rapidly than
hitherto and by labour-saving apparatus. of glass articles and especially of such articles
as require a large body of glass in proportion to their size. as for instance, insulators,
insulating jockeys, and other articles in glass-ware made principally if not altogether
by casting, moulding or pressing the glass in suitably shaped moulds.
In the manufacture of glass insulators and similar articles according to my said
invention, employ a machine wherein the molten glass is poured into the mould and
pressed therein by means of a suitable plunger, and the moulded article is then
removed from the mould and placed upon an endless band or other suitable device for
conveying it to an annealing furnace; and wherein these operations may be succes-
sively performed in a series of moulds, so that the machine can be operated con-
tinuously to produce the glass articles.
In the accompanying drawings
Figure 1 is a side elevation, partly in vertical central section,
Figure 2 is a front elevation, and
Figure 3 is a horizontal section on the line, x, Figure 2. showing one form of my
improved machine.
Figure 4 shows, in front elevation, and in side elevation, partly in vertical contral
section, the plunger and one of the moulds with the moulded article therein.
Figure 5 shows, in sectional elevation, another form or modification of the plunger
and one of the moulds with a moulded insulator therein, and also, in side elevation, the
insulator made by means of the said plunger and mould.
Figure 6 is a front elevation, partly in vertical section, and
Figuro 7 an end elevation, showing another form or modification of my improved
machine.
Like lotters indicate corresponding parts throughout the drawings.
Referring to Figures 1, 2 and 3. A is a table mounted upon a suitable standard B,
about which it is arranged to rotate. C. Care the moulds, which are shaped internally
to correspond to the external shape of the insulator or other glass article to be made,
and which are attached in any convenient manner to the said table. Dis a plunger
for pressing the glass in the moulds as they come successively under the said plunger.
This plunger is connected by links D with an operating lever D² pivoted at 1³ to
a bracket B secured upon the standard B.
Each mould C is provided with a movable bottom C' which is provided with n
roller C. These rollers run upon a stationary cam E, which is arranged beneath the
table A, and the upper surface of which is horizontal with the exception of the raised
portion E. This cam is so arranged that, in the rotation of the table A, it will lift the
movable bottom C' of each mould C, as the said mould passes over the raised portion E'
of the said cam, and will thus eject the moulded article from the mould.
To provide for the removal of the moulded article to an annealing furnace, a delivery
arm is pivoted at F' to a bracket B secured upon the standard B, and is actuated
by a toggle-joint G, G, which derives its movement from the short arm 14 of the
pressing-lever D2, with which it is connected by a link H. By means of this arm F.
the finished article, when elevated above the upper surface of the mould by the movable
mould-bottom ", will, on the downward stroke of the outer end of the pressing-
lever D² be delivered on to a travelling hand J by which it is conveyed to the
annealing ovens.
I can employ any convenient means for imparting the required rotary motion to the

page_text: table A. I find it advantageous to employe
and 3, in which K is a pinion fixed upon a vertical shaft K' which is supported in
suitable bearings in the bracket B2, and in a bracket B3 secured to the cam E. The
said pinion K is geared with teeth on the periphery of the table A. The shaft K'
is connected, by bevel wheels M, M, with a horizontal shaft N supported in suitable
bearings in the bracket B. This shaft is connected with a suitable driving-shaft by
means of a clutch O, the sliding part of which is connected, through the medium of a
bell-crank-lever P pivoted at P¹ and a connecting link Q. with a treadle R pivoted
at R by these means, the sliding cone may be brought into frictional contact with,
or moved away from the constantly running female cone of the clutch O, as required,
to intermittently rotate the table A. As soon as the said table has been rotated
through the required angle, it is retained in position by a detent S connected by a
link S with the treadle R. and acted upon by a spring S², which causes the said
detent to ascend and enter one or other of a series of notches T in the table A,
when one or other of the moulds is under the plunger D, and, at the same time, raises
the outer end of the treadle R. thus, through the medium of the connecting link Q and
bell-crank-lever P. withdrawing the male cone of the clutch and stopping the further
movement of the table.
a, a', Figures 4 and 5, are two forms of pressed insulators. The moulds C shown
in these Figures are made in sections so that they can be readily detached from the
moulded article.
The molten glass may be poured directly into the mould from a suitable ladle by
hand. I prefer, however, to so arrange the moulds that they will be charged with the
molten glass by means of a siphon Vindicated by dotted lines in Figures 2 and 3.
When the molten glass has been poured into a mould, the table A is partially
rotated to bring this mould under the plunger D; the lever D is then turned about
its pivot so to move the said plunger downward and thus force the same through or
cause it to press against the glass in the mould. The lever D² is then turned in the
reverse direction to lift the plunger out of the mould, and the table A is again rotated.
another mould having been previously charged with molten glass. In the rotation of
the table A, the moulded article is lifted out of the mould by the raised portion E¹
of the cam E. and. in the next operation of the lever D², the arm F is caused to deliver
the moulded article on to the endless travelling band J, whereby it is conveyed to the
annealing oven, kiln or furnace. Or the said article may be pushed by the arm F, or
by any other convenient device provided for the purpose, into a taking-in shovel, or
other suitable receptacle, for conveyance to the annealing furnace.
When the mould is made in sections, provide suitable devices, such as toggle-
joints, for withdrawing the said sections from the moulded article before the latter is
lifted clear of the top of the mould.
In the modification of my improved machine shown in Figures 6 and 7, there is a
stationary table A', which is made in two parts and is supported upon suitable
standards, and over which the moulds C are arranged to travel. The moulds C are
provided with wheels or rollers C+ which run upon projections or rails A² on the two
parts of the table A¹, between which the said moulds extend when travelling upon the
said rails. The necessary movement is imparted to the moulds by means of an endless
chain W, to which the said moulds are connected, and which are passed around
suitable chain-wheels W, W. The shaft W³ on which are fixed the chain-wheels Wi
is connected. by bevel wheels W. W, with the vertical shaft K', to which inter-
mittent rotation may be imparted as hereinbefore described, or in any other convenient
manner. A stationary cam E having a raised portion E¹ is provided for lifting the
moulded articles out of the mould. The said articles may be removed from the mould-
A siphon V may, if
bottom by any suitable mechanical contrivance, or otherwise.
desired, he provided for charging the moulds with the molten glass.
It may be advantageous to attach the moulds to a table which is arranged to move
horizontally to and fro to bring the moulds successively beneath the charging-siphon
and the pressing-plunger. Moreover the bracket supporting the pressing-plunger
may be arranged to revolve about a suitable standard, or the said plunger may be

page_text: arranged in any other convenient manner so that it can be moved as required to bring
it successively over the moulds.
It is obvious that the construction of my improved machine or apparatus may be
somewhat further modified without departing from my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I wish it understood that
I claim
First The improved method of manufacturing insulators and similar articles of
glass by a machine in which the operations of pouring the glass into a mould, pressing
it therein by means of a suitable plunger, removing the article from the mould, and
placing it upon an endless band or other suitable device for conveying it to an
annealing oven or furnace, are successively and continuously performed, substantially
as hereinbefore described.
Second A machine for the purpose above specified, comprising a movable table
provided with a series of moulds each of which has a movable bottom, a vertically
reciprocating plunger for pressing the glass in the said moulds, suitable means for
lifting the mould-bottom to eject the moulded article, and suitable means for
removing the said article from the mould-bottom, substantially as hereinhefore
described.
Third A machine for the purpose above specified, comprising a stationary table, a
series of moulds each having a movable bottom and arranged to travel over the said
table, a plunger for pressing the glass in the said moulds, and suitable means for
lifting the mould-bottom to eject the moulded article, substantially as hereinbefore
described.
Fourth The improved machine constructed substantially as described with refer-
ence to Figures 1 to 5 or with reference to Figures 6 and 7 of the accompanying
drawings. and operating as, and for the purposes, above specified.
Dated this 15th day of September 1890.
MIN [Sen (@y of September 1890
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.