Improvements in Apparatus for Bevelling the Edges of Glass Plates.
Year: 1899

page_text: Date of Application, 30th Sept., 1899
Camotnio Cunnifination Lath 0th June 1000 Accented 14th July 1900
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Bevelling the Edges of Glass Plates.
I, LEONARD WEST, of Ravenhead, St. Helens, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to apparatus of compact and easily manageable form,
for grinding to bevel the edges of glass plates.
For this purpose I lay the plate to be bevelled on a table holding it in position
to present its edge to the periphery of a revolving grinding drum.
The table is arranged to run or slide on rails parallel to the axis of the drum,
and these rails are on a frame which can be raised or lowered by screws so 'a's
to adjust the edge of the plate on the grinding drum.
The under side of the table has pivotted to it a fork which when turned into
one position engages a vibrating lever by which the table and with it the glass
plate is caused to travel to and fro parallel to the axis of the grinding drum.
The lever is caused to vibrate by its connection to a reciprocating rod worked by
a crank, and this rod may extend so as to work the vibrating levers of several
sets of apparatus. Another rod, reciprocating more slowly causes a pair of sloping
shoots to move to and fro over the grinding drum, delivering on it grinding
material such as sand carried down the shoots by streams of water. This recipro-
cating rod may also extend to work the shoots of several sets of apparatus. The
to and fro movement of the table may be stopped by withdrawing the fork from
the reciprocating lever, and in like manner the movements of the shoots may be
stopped by disconnecting them from their reciprocating rod.
Thus any one of a set of apparatus might have its table and shoots thrown out
of action while the reciprocating rods go on working the tables and shoots of the
other machines.
Dated this 30th day of September 1899
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Bevelling the Edges of Glass Plates.
I, LEONARD WEST, of Ravenhead, St. Helens, in the County of Lancaster,
Engineer, 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 compact and easily manageable form

page_text: for grinding to bevel the edges of glass plates, as I shall describe referring to
the accompanying drawings.
Fig. 1 is a side elevation, Fig. 2 is an end elevation and Fig. 3 is a plan of
apparatus according to my invention.
I lay the plate of glass to be bevel edged on a table a holding it in position to
present its edge to the periphery of a revolving grinding drum b. The table a
is arranged to roll as shewn or it might be to slide laterally on rails which are
fixed parallel to the axis of the grinder on a frame c. This frame has its rear
side jointed to the tops of columns d, and its front side has a pair of downwardly
projecting screws passing through screw threaded worm wheels worked by worms
on a shaft e which can be turned by a hand wheel at either end so as to raise or
lower the frame e and table a and thus adjust the edge of the plate on the grinder.
The worms and worm wheels are enclosed within casings on the heads of columns f,
so as to be protected from grit. On the underside of the table is mounted a rock
spindle carrying a fork g with diverging prongs and counter weights h. When
the spindle is turned so that the fork is inclined downwards as shewn in Figs. 1
and 2 it engages the end of a vibrating lever by which the table and glass
are caused to travel to and fro parallel to the axis of the grinder, the edge of the
glass being thus evenly bevelled. The prongs of the fork g are made divergent
in order that the lever 7 may be engaged between them at any part of its stroke.
The lever has a forked lower end engaged on a pin at the side of a reciprocating
rod which is worked by a crank m on a shaft and may extend so as to work the
levers of successive apparatus arranged in a row. The shaft is worked by
bevil gear from a main shaft which is driven by any convenient motor. By worm
gear a counter shaft is slowly driven, this shaft having a crank working
another reciprocating rod which like may extend to operate for apparatus
beyond. A pin on the rod engages the arm of a vertical rocking spindles to
which is attached a pair of sloping shoots that convey grinding material such
as sand and water down to the grinding drum, and by their reciprocation to
distribute it evenly over its circumference.
The reciprocation of any one of a row of tables may be stopped by lifting the
fork 9 out of the path of the lever, and in like manner the reciprocation of any
pair of the shoots might be stopped by disengaging the arm of the spindle s from
the pin on the rod r.
are guards to stop splashings from the grinder.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
Apparatus for bevelling the edges of glass plates, constructed and operating
substantially as described with reference to the drawings.
Dated this 8th day of June 1900.
ABEL & IMRAY,
Agents for the Applicant.