New or Improved Machinery for Bevilling and Moulding the Edges of Plates of Glass and for Ornamenting the Surfaces of Plates of Glass.
Year: 1887

page_text: Date of Application, 10th Feb., 1887.
Complete Left, 7th July, 1887.
Complete Accepted, 9th Aug., 1887.
PROVISIONAL SPECIFICATION,
New or Improved Machinery for Bevilling and Moulding the Edges
of Plates of Glass and for Ornamenting the Surfaces of Plates
of Glass.
1, OBED CHARLES HAWKES, of Nos. 123 to 129 Bromsgrove Street, Birmingham,
in the County of Warwick, Manufacturer do hereby declare the nature of this
invention to be as follows :-
My invention consists of machinery the parts of which are constructed and
arranged in the manner herein after described which said machinery effects rapidly
and economically the bevilling and moulding of the edges of plates of glass, and may
also be employed for ornamenting the surfaces of plates of glass.
The machinery constituting my invention is constructed essentially as follows.
On the bed of the machine is a pair of parallel rails on which rails the carriage
travels, to which the plate of glass to be operated upon is clamped. The said carriage
is capable of being raised and lowered by means of worms and worm wheels actuated
by hand wheels. Crossing the bed of the machine at its middle and working in
bearings carried by the framing is a shaft or axis the end of which protruding from
the side of the framing carries a cutting mill or circular grinder by which the edge of
the plate of glass is ground; the said shaft carries at or near its middle a fast and
loose pulley for throwing the said shaft into or out of gear with the driving power by
means of gearing of the ordinary kind. A to and fro motion is given to the table
carrying the plate of glass to be operated upon by means of two winding drums
carried by a horizontal shaft at one end of the table. These winding drums are
provided with ropes or bands, one of the said ropes or bands being connected directly
to one end of the travelling table; the other rope or band extends to the other end of
the machine and passing over a pulley returns and is connected to the opposite end of
the travelling table. Between the winding drum are three pulleys, the middle one
running loose on the shaft and the other two being respectively fixed to the winding
drums. When the band driving the said drums is on the middle pulley no motion is
given to the shaft and when it is on one or other of the pulleys of the winding drums
it gives motion to one or other of the said drums. When one of the said drums is in
gear with the driving power the travelling table is drawn in one direction and when

page_text: the other drum is in gear with the driving power the table is drawn in the opposite
direction. The throwing of the said winding drums into or out of gear may either be
effected by hand or it be effected automatically by stops carried by the travelling
as the said table approaches the end of its motion in either
table operating a belt
direction.
may
The periphery of the grinding mill or rotating cutter has the figure necessary for
grinding the required bevil or beading on the edge of the plate of glass. The glass
operated upon is lowered as the rotating cutter operates upon it, by the action of the
worms and worm wheels herein before referred to.
The required motions are given to the several moving parts of the machine in the
following manner. A main shaft situated over one end of the machine gives motion
by means of a pulley and band to a counter shaft at the opposite end of the machine;
and the motion of the winding drums which actuate the travelling table is taken from
the said counter shaft. The main shaft also gives motion to a shaft below the level
of the bed of the machine, and by the last named shaft motion is given to the grinding
mill or rotating cutter.
The grinding mill or rotating cutter is supplied with the usual grinding and
polishing material.
The four or required number of edges of the plates to be operated upon are
preferably ground before any of them are polished.
When it is desired to operate on the surface of the sheet of glass so as to produce
mouldings thereon the said sheet of glass is so clamped on the travelling table that the
part of the sheet on which the moulding is to be made is brought over the grinding
mill or rotating cutter.
Dated this 10th day of February 1887.
W. T. WHITEMAN,
Agent for the Applicant.
COMPLETE SPECIFICATION.
New or Improved Machinery for Bevilling and Moulding the Edges
of Plates of Glass and for Ornamenting the Surfaces of Plates
of Glass.
1 OBED CHARLES HAWKES of Nos. 123 to 129 Bromsgrove Street Birmingham in
the County of Warwick, Manufacturer, do hereby declare the nature of my 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 consists of machinery the parts of which are constructed and arranged
in the manner hereinafter described, which said machinery effects rapidly and
economically the bevelling and moulding of the edges of plates of glass and may
also be employed for ornamenting the surfaces of plates of glass.

page_text: The machinery constituting my invention is constructed essentially as follows
On the bed of the machine is a pair of parallel rails on which rails the carriage
travels to which the plate of glass to be operated upon is clamped. The said carriage
is capable of being raised and lowered by means of worms and worm wheels actuated
by hand wheels. Crossing the bed of the machine at its middle and working in
bearings carried by the framing is a shaft or axis the end of which protruding from
the side of the framing carries a cutting mill or circular grinder by which the edge of
the plate of glass is ground; the said shaft carries at or near its middle a fast and
loose pulley for throwing the said shaft into or out of gear with the driving power by
means of gearing of the ordinary kind. A to and fro motion is given to the table
carrying the plate of glass to be operated upon by means of two winding drums
carried by a horizontal shaft at one end of the machine. These winding drums are
provided with ropes or bands one of the said ropes or bands being connected directly
to one end of the travelling table; the other rope or band extends to the other end of
the machine and passing over a pulley returns and is connected to the opposite end of
the travelling table.
Between the winding drums are three pulleys the middle one running loose on the
shaft and the other two being respectively fixed to the winding drums. When the band
driving the said drums is on the middle pulley no motion is given to the shaft and
when it is on one or other of the pulleys of the winding drums it gives motion to one
or other of said drums. When one of the said drums is in gear with the driving
power the travelling table is drawn in one direction and when the other drum is in
gear with the driving power the table is driven in the opposite direction. The
throwing of the said winding drums into or out of gear may either be effected by
hand or it may be effected by stops carried by the travelling table operating a belt
fork as the said table approaches the end of its motion in either direction.
Or the parts may be modified as follows:-
The winding drums are made to rotate loosely upon their shaft and between them a
sliding pulley or friction clutch works the said pulley or clutch being connected to
the shaft by a sliding key. By means of a bell crank lever operated automatically
from the reciprocating carriage the sliding pulley or friction clutch can be made to
press against the end of either of the winding drums so as to give rotation to it.
When one of the drums is driven by the sliding pulley or clutch the band is wound
upon that drum and the carriage is moved in one direction, the other drum which is
now loose upon the shaft unwinding and paying out its band. When the other drum
is driven by the sliding pulley the carriage is moved in the opposite direction. By
the alternate gearing of the two winding drums with the rotating shaft through the
sliding pulley or friction clutch the bands are alternately wound upon and unwound
from the drums and a reciprocating motion given to the carriage and to the table
supporting the glass being operated upon.
The periphery of the grinding mill or rotating cutter has the figure necessary for
grinding the required bevel or beading on the edge of the plate of glass. The glass
operated upon is lowered as the rotating cutter operates upon it by the action of the
worms and worm wheels herein before referred to.
The grinding mill or rotating cutter is supplied with the usual grinding and
polishing material.
The four or required number of edges of the plates to be operated upon are
preferably ground before any of them are polished.
When it is desired to operate on the surface of the sheet of glass so as to produce
mouldings thereon the said sheet of glass is so clamped on the travelling table that the
part of the sheet on which the moulding is to be made is brought over the grinding
mill or rotating cutter.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which my invention is to be performed.
Figure 1 represents in plan (the table being removed) and Figure 2 in side
elevation machinery constructed according to my invention for moulding and bevelling
the edges and ornamenting the surfaces of plates of glass; Figure 3 represents an end

page_text: elevation partly in section of the same taken at the right hand end of Figure 1 and
Figure 4 represents a cross section of the same taken on the line A B Figure 2;
Figures 5 and 6 represent parts of the machinery drawn to a larger scale.
The same letters of reference indicate the same parts in the several Figures of the
Drawings.
b of which
a is the traversing carriage of the machine the supporting wheels
carriage work upon the V shaped rails or guides c, e fixed on the bed or uprights d, d
of the machine. Upon the said rails or guides c, c the carriage a and parts
supported by it can travel from end to end. Supported upon the said traversing
carriage a is the wooden table e on which the plate of glass e² to be operated upon
is fixed or clamped. The table e is capable of a vertical adjustment so as to bring the
underside of the plate of glass e fixed to it under the operation of the rotating cutter
or mill. The table e is connected to and adjusted on the carriage a by the following
arrangement of parts. On the underside of the table are two pairs of vertical screws,
and which work in screw boxes made in the bushes of the worm wheels ƒ³ ³
turning on the travelling carriage a. The pair of screws at one side of the carriage a
is operated by the worms on the axis g gearing with the worm wheels
carrying the screw boxes and the pair of screws at the other side of the carriage a is
operated by similar worms, on the axis h gearing with the worm wheels f³, f
carrying the screw boxes. By turning the shafts or axes g, h in one or other direction
by means of their hand wheels g², the two pairs of screws f, can be raised or
lowered in their screw boxes and the height of the table e adjusted. As the arrange-
ment of gearing at each side of the carriage is independent of the other, the table e
can either be placed horizontally or in an inclined position as required by the work to
be performed by the machine.
3
i is the cross shaft at the middle of the machine the end protruding from the side of
the framing carrying the rotating cutting mill or circular grinder k for operating
upon the underside of the edge of the plate of glass to be moulded or bevelled, or
the surface of the plate of glass to be ornamented. Over the periphery of the cutting
mill or circular grinder the underside of the edge or surface of the plate of
glass to be operated upon is carried by the traversing motion of the table e. On
the shaft are fast and loose pulleys at for driving it and throwing it out
of gear.
The to and fro or traversing motion of the carriage a and the table e supported
by it is effected in the following manner. At one end of the machine is a shaft / on
which two winding drums p and q turn loosely, the said loose drums being prevented
from sliding outwards on the shaft by the flanges represented. The winding
drums are provided with ropes or bands p² ². The band p² is connected
directly to one end of the carriage a at p³ and the other band q² extends to the other
end of the machine and passing over a pulley q³ returns and is connected at q¹ (see
Figure 2) to the opposite end of the carriage a. Between the winding drums p, q is
a double conical pulley or sliding clutch (see Figures 3 and 5) connected to the
rotating shaft by a sliding key. The inner end of each winding drum is hollow and
has a conical seat of wood for the conical end of the sliding clutch to seat itself
upon and by frictional contact to communicate its rotary motion to the drum.
When the sliding frictional clutch ris pressed against the end of the drum P the
rotatory motion of the said clutch is communicated to the said drum
P and when the
said clutch is moved in the opposite direction it no longer presses upon the drum p
but presses against the end of the other drum q and communicates by frictional
contact rotary motion thereto. When the drum p is driven by the clutch the
traversing carriage a and its table e move from left to right, the band p² being wound
upon the said drum p, the other drum being now loose on its shaft unwinding and
paying out the band q². When the drum q is driven by the clutch the reverse
action takes place, the carriage a being moved from right to left by the unwinding of
the band p² from off the drum p and the winding of the band q upon the other
drum q.
At the end of each traversing motion or stroke of the carriage a its motion
is automatically reversed in the following manner: s is a rod parallel with the sides

page_text: of the machine and sliding in bearings in the end cross bars t, t. The said rod s may
also be supported at one or more intermediate points. The said rod s carries
adjustable tappets s², s³. The horizontal projecting arm of each tappet supports a
spring or buffer for reducing the shock of the rocking arm hereinafter described
upon it. On the underside of the carriage a is a rocking arm u the lower end of
which can be brought into the path of the tappets 3,5 on the rods as shown in
continuous lines in Figures 4 and 6 or raised out of the path of the said tappets as
indicated in dotted lines in the said Figures 4 and 6. When in the former position
the rocking arm u strikes one or other of the tappets s² or 3 on the sliding rods and
gives motion in one or other direction to the said rod. The arm u is put into its
acting position or into its non acting position by hand by means of the hand lever w
(see Figure 2) the cranked inner end of which works in a slot in the said arm u.
By the motion of the sliding tappet rod s in one or other direction the motion of the
travelling carriage and table a, e is reversed in the following manner.
,² is a bell
crank lever the forked inner arm ² of which works in a collar at the middle of the
sliding frictional clutch r. The long arm a of the bell crank lever a, 2 is connected
to the end of the sliding tappet rods by means of a pin on the cross piece y of the
rods taking into a slot in the end of the said arm of the bell crank lever (see
Figures 3 and 5). By the traverse of the carriage a in one direction the rocking
arm u strikes the tappet s and the rods is moved in one direction and by the
traverse of the carriage a in the other direction the rocking arm u strikes the other
tappet and moves the rod s in the same direction as the carriage is moving. By
the motion of the tappet rod s acting through the bell crank lever a, a² the clutch r
is frictionally geared to one or other of the winding drums p or y and the reversal of
the motion of the traversing carriage and table is thereby effected in the manner
before described.
Near each end of the tappet rod s is a safety tappet. These safety tappets are
marked. By the use of these safety tappets the motion of the traversing carriage a
is reversed should the rocking arm ⟫not have been put into its acting position by the
attendant. The safety tappets consist of vertical rods which are struck by the ends of
the carriage a as it approaches the end of its stroke in either direction.
Instead of the sliding friction clutch for driving one or other of the winding
drums p; 9
the arrangement of parts represented in plan in Figure 7 may be used.
In this arrangement the winding drums turn loosely on the shaft and between them
are three pulleys 12, 13, 14. The middle pulley 14 runs loose on the shaft. I and the
other pulleys and 13 are fixed respectively to the loose winding drums and q. A
belt works on the loose middle pulley and can be moved by the belt fork either
onto the pulley or onto the pulley 13. When the band is on the middle pulley * no
motion is communicated to the drums. When the band is moved onto the pulley 12
motion is given to the drum p and when the band is moved onto the pulley 3 motion
is given to the drum q. In this way the motion of the travelling carriage may be
reversed in the manner before described. The belt fork is automatically worked
from the tappet rod s operated by the travelling carriage through the bell crank
lever and the reversing mechanism can be stopped by throwing the band onto the
middle pulley by means of the hand lever y.
The shaft carrying the cutting mill or circular grinder k is driven by a band
passing over the pulley 2 on the end shaft 3 and over the fast pulley at 2. The
said shaft 3 is driven in any convenient way and the reversing shaft is driven by a
band passing over the fast pulley at 4. The driving band for working the reversing
shaft is operated by the band fork and handle at 5 and the driving band for
working the shaft i of the cutting mill or grinder k is operated by the band fork and
handle at 6.
In order to return or renew the shape of the cutting mill or circular grinder k
without removing it from the machine the shaft i carries a large pulley 7 at the side
of the said cutting mill and the shaft a pulley 8. The traversing and reversing
mechanisms of the carriage a having been thrown out of gear a driving band is

page_text: passed over the pulleys 8 and 7 and the shaft 7 being driven the cutting mill is
rotated and can be returned.
The plate of glass e² the edge of which is to be moulded or bevelled is so clamped
to the table e that the edge to be operated upon projects beyond the edge of the table
and over the acting part of the cutting mill k as seen in Figures 3 and 4 and as the
moulding or bevelling of the edge of the glass proceeds by the action of the mill upon
the underside of the edge of the glass the table a and with it the plate of glass is
lowered by acting upon the hand wheels ², h² until the required moulding or bevel
has been ground or formed upon the said plate of glass. After one edge of the
plate of glass has been operated upon the plate is unclamped from the table and
another edge brought into position to be operated upon on its underside by the mill
or cutter k.
In ornamenting the surfaces of plates of glass by producing thereon mouldings by
the use of the rotating mill or cutter and traversing carriage and table described
and illustrated, the plate of glass is so clamped on the travelling table that the part
of the plate on which the mouldings are to be made is brought over the grinding mill
or rotating cutter in the manner described when forming mouldings on the edge of
the plate of glass.
In place of bevelling the edge of the plate of glass by a mill or grinder having
motion in a vertical plane a mill or ginder having motion in a horizontal plane inay
be used in conjunction with the carriage a and table e supporting the plate of glass
which table by means of the gearing represented has the required inclination given to
it to grind upon the underside of the edge of the plate of glass the desired bevel.
When a horizontal mill or grinder is used it is mounted upon a vertical shaft which is
geared to the shaft i by bevel toothed gearing or friction wheels.
After the edges or other parts of the plate of glass have been ground they arc
polished in the ordinary way and by the use of the ordinary materials.
Having now particularly described and ascertained the nature of my invention and
the manner in which the same is to be performed I declare that I claim as my
invention.
In machinery for bevelling and moulding the edges and ornamenting the surfaces
of plates of glass the combination of a to and fro or reciprocating carriage supporting
an adjustable table on which the plate of glass to be operated upon is clamped or
fixed with a vertical or horizontal rotating cutting mill or circular grinder together
with mechanism for giving a reciprocatory motion to the travelling carriage and
table and for automatically reversing the direction of the motion of the said travelling
carriage and table, the several parts of the machinery being constructed, arranged and
operating substantially as herein before described and illustrated in the accompanying
Drawings.
Dated this Sixth day of July 1887