Improvements in Apparatus for Cutting Lines, Circles and other Designs on Glass.
Year: 1898

page_text: Date of Application, 14th Jan., 1898
Complete Specification Left, 13th Oct., 1898-Accepted, 14th Apr., 1899
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Cutting Lines, Circles and other
Designs on Glass.
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:-
My invention relates to apparatus for cutting lines, circles and other designs
on glass. The usual method of cutting these is to apply the glass to a revolving
grinding wheel and direct it by hand. According to my invention, the glass,
instead of being guided by hand, is carried on a balanced frame or table which
is free to move vertically or approximately so according to the depth of cut
required, and can also be freely moved on straight guides horizontal or approxi-
mately so, to cut lines. Circular guides are also provided so that the glass can
be turned relatively to the grinding wheel, thus cutting curves.
Dated this 14th day of January 1898.
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Apparatus for Cutting Lines, Circles and other
Designs on Glass.
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:-
My invention relates to apparatus for cutting lines, circles and other designs
on glass. The usual method of cutting these is to apply the glass to a revolving
grinding wheel and direct it by hand. According to my invention the glass
instead of being guided by hand, is carried on a balanced frame or table which
is free to move vertically or approximately so according to the depth of cut
required and can also be freely moved on straight guides horizontal or approxi-
mately so, to cut lines. Circular guides are also provided so that the glass can
be turned relatively to the grinding wheel, thus cutting curves.
Fig. 1 of the accompanying drawings is a side view partly sectional and
Fig. 2 is an end view of apparatus according to my invention for cutting designs
on glass.
Fig. 3 is a plan shewing the machine arranged for cutting circles or curves
and Fig. 4 is a plan shewing it arranged for cutting lines.

page_text: The glass plate G is fixed by any suitable means on a table T which is pro-
vided with guides fitted to slide on a pair of rails Reach fixed by nuts r on a
pair of vertical rods V which slide in guides provided on the frame F of the
machine.
These guides are equidistant both longitudinally and laterally so that the
rails R can be fixed either as shewn in Figs. 1, 2 and 3 parallel to the axis of
the grinding wheel W or as shewn in Fig. 4 at right angles to that axis. The
tops of the rods V are connected by inclined braces B to a bolt 6 resting on the
short arm of a bent lever L, the long arm of which is loaded to balance or nearly
balance the table with its guides and connections. By means of a screw / act-
ing on the lever L the table can be raised or lowered so that the glass is cut
to less or greater depth by the wheel W.
In order that wheels of various sizes may be used, the bearings of the wheel
axis are formed in a forked frame w the lower part of which can slide vertically
in a socket S, being held at any height and prevented from turning by a set-
ting screw s. The wheel is driven from any suitable motor by a band on a
pulley P.
In order that circles or other curves may be cut, the table T is provided with
a circular guide C on which can turn a ring chaving teeth on its lower face
which gear with a pinion Q upon a screw spindle q.
By turning this spindle and pinion the ring c is caused to turn while at the
same time the table T is caused to slide so that the glass owing to this com-
pound motion, has a spiral cut on its under side. By disengaging the nut in
the bearing of the spindle g the ring c only is caused to turn, the table T remain-
ing at rest, and in that case the glass has cut on its under side a circle of radius
depending on the position of the table T relatively to that of the wheel W.
When lines of considerable length have to be cut, the table having the circular
opening shewn in Fig. 4 may be removed and a rectangular table with a
lengthened opening may be substituted for it. W is a trough containing water
in which the periphery of the wheel W is partly immersed.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. Apparatus for cutting designs on glass constructed and operating substan-
tially as described with reference to the drawings.
2. In apparatus such as is above referred to the combination of the rail, the
vertical rods sliding in equidistant guides, the bar to which the rods are con-
nected and the loaded lever and screw for raising and lowering the rails, sub-
stantially as described.
3. The forked frame carrying the bearings of the wheel axis and having its
lower part fitted to slide vertically in a socket, substantially as and for the
purpose set forth.
4. In combination with the table, the circular guide and toothed ring, the
pinion and screw spindle, substantially as and for the purpose set forth.
Dated this 13th day of October 1808
ABEL & IMRAY,
Agents for the Applicant.