Improvements in or relating to Apparatus for Rolling Glass.
Year: 1893

page_text: Date of Application, 16th Sept., 1893
Complete Specification Left, 10th Apr., 1894-Accepted, 12th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Rolling Glass.
We, ANTHONY DIXON BROGAN and ANDREW MURRAY MALLOCH sole
partners of The Glasgow Plate Glass Company, Firbill, Glasgow, Lanarkshire,
Glass Manufacturers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to apparatus of the kind described in the Specification
filed with the application for Patent No. 8555 dated 28 April 1893 and in which
molten glass is passed between a pair of smooth rollers to roll it into sheets or plates
preparatory to further treatment, and it has for its object to provide means for
spreading out the molten mass so that it may be acted on uniformly or approximately
so by the rolls over their entire width and the waste consequent on the formation
of a narrow end on the plate may be avoided.
For that purpose we secure over and between the pair of rolls through which the
molten glass is carried a hopper having closed ends and having sides inclined to
each other and meeting at the lower end or terminating there in a narrow slit in
contact with or in close proximity to the surface of one of the rolls. One of the
sides of the hopper is fitted to slide in guides or to swing upon a centre after the
fashion of a sluice or valve so that the slit or outlet at the bottom of the hopper
may be opened more or less. By this means the molten glass which is poured into
the hopper is first allowed to spread over the length of the hopper after which the
outlet from the latter is opened more or less to permit the uniform discharge of
the glass thus ensuring that it will pass through the rolls in an uniform stream
extending over the width of the rolls.
Dated this 15th day of September 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Rolling Glass.
We, ANTHONY DIXON BROGAN and. ANDREW MURRAY MALLOCH, sole
partners of The Glasgow Plate Glass Company, Firhill, Glasgow, Lanarkshire,
Glass Manufacturers, 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 relates to apparatus of the kind described in the Specification
filed with the application for Patent No. 8555 dated 28 April 1893 and in which
molten glass is passed between a pair of smooth rollers to roll it into sheets or
plates preparatory to further treatment, and it has for its object to provide means
for spreading out the molten mass so that it may be acted on uniformly or approxi-
mately so by the rolls over their entire width, and the. waste consequent on the
formation of a narrow end on the plate may be avoided.
For that purpose and as illustrated in vertical section by Figure 1 in end elevation
by Figure 2 and under a modification in like views by Figures 3 and 4 we secure
over and between the pair of rolls A, A', through which the molten glass is carried
a hopper B having closed ends and having sides inclined to each other and meeting

page_text: at the lower end or terminating there in a narrow slit in contact with or in close
proximity to the surface of one of the rolls. One of the sides c of the hopper B is
fitted to slide like a sluice in guides d as illustrated by Figures 1 and 2 this side
being provided with racks which gear with pinions f secured on a horizontal
shaft said shaft being operated from either side of the machine by hand
wheels h.
k
In lieu of the rack and pinion arrangement and as shewn by the modification
Figures 3 and 4 the side e may be fitted to swing upon a centre and the slit or
outlet at the bottom of the hopper may be opened more or less by means of the
hand levers which have projections on them engaging with ratchet quadrants or
equivalent devices; or these levers may be brought down and connected together
underneath the table where they may be operated to open the hopper by means of
a treadle or otherwise. By this means the molten glass which is poured into the
hopper B is first allowed to spread over the length of the hopper after which the
outlet from the latter is opened more or less to permit the uniform discharge of
the glass thus ensuring that it will pass through the rolls in an uniform stream
extending over the width of the rolls.
If necessary the hopper may be jacketed and a stream of water caused to
circulate therein for the purpose of keeping the hopper from overbeating.
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:
In apparatus for rolling glass the combination with the rollers through which
the glass is passed of a hopper adapted to receive the molten glass and to discharge
it uniformly over the width of the rolls substantially as described.
Dated this 9th day of April 1894.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.