Improvements in Machinery for Bevelling Glass.
Year: 1894

page_text: Date of Application, 12th June, 1894
Complete Specification Left, 10th Apr., 1995-Accepted, 12th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Bevelling Glass.
WILLIAM OLIVER BAILEY of The Excelsior Works, Wenlock Road City
Road in the County, of London Glass Merchant, Silverer, and Beveller do hereby
declare the nature of this invention to be as follows:-
In bevelling glass the use of a' vertical travelling frame with running gear at the
top and bottom to which the glass to be bevelled is fixed so as to avoid the necessity
of holding the saine in the hand such frame being adapted for use either in
combination with horizontal bevelling mills as at present used or with vertical
bevelling mills as the case may be.
Also the use in such a frame of gear for moving the frame fixing the glass thereto
and altering the slope of the glass:
Also the use with'such a frame of gear for raising the frame from the mills and
lowering it on to the mills.
Also the use with such a frame of vertical mills for the purpose of bevelling
glass in the place of the horizontal mills now generally used in bevelling' glass.
Dated the 28th day of July 1894.
WILLIAM OLIVER BAILEY.
COMPLETE SPECIFICA HUN..
Improvements in Machinery for Bevelling Glass.
1. WILLIAM OLIVER BAILEY of The Excelsior Works Wenlock Road City
Road in the County of London Glass Merchant Silverer and Beveller, 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 improvements in machinery for bevelling plates or sheets
of glass and has for its especial object the enabling such bevelling to be effected
more expeditiously and with greater accuracy and ease and with less damage to the
glass operated on than under the present system.
In order that my invention may be more fully understood-1 annex hereto
drawings of my improved apparatus.
Fig. 1 and Fig. 2 shew the travelling frame and gear in section and elevation.
Fig: 3 and Fig 4 shew the details of the arrangements for propelling, the
apparatus and for starting and stopping.it.
The apparatus is operated by and in the following manner, viz. I construct a
frame of wood or metal preferably, metal with uprights A and W. Fig. 1 and Fig. 2
and to which are attached the cross frame pieces F. The whole is mounted upon
rollers: or grooved wheels which run upon a rail at the top L' the grooved wheels
or rollers C taking all the weight of the travelling apparatus. There are also
placed at the edge and irunning laterally small pulleys K and K for steadying the
frame in its motion. These runtagainst the side of the rails L and L'. Through
this: frame:I'carry sliding: bars E E E upon which in front is hinged the easel B

page_text: for carrying the glass and behind are hinged the struts U. U. The easel B is
formed with slotted bars Q and side slotted bars Q' and has a ledge formed on its
lower side B for the purpose of supporting the glass. The glass is fixed in
position and held by means of the bar D which is placed across the face of the
plate or plates of glass and fixed by means of the thumb screws 11 which are
fastened in the slots S S. When necessary the glass may be further fixed by
clamps R acting with the slotted bars Q of the casel B. The easel is hinged to the
sliding bars E E E for the purpose of being placed at the angle at which the glass
is required to be bevelled. The struts U. U. act as supports to the easel B to
which they are fixed by means of thumb screws R' R' working in the side-slotted
bars QQ of the easel B and so determining the angle of the bevel.
The easel is made to approach or recede from the grinding mill by means of the
screw and worm gearing g and the wheel T. by which means any required
pressure may be placed upon the glass against the grinding mill and at the same
time carrying the casel forward and backward without altering the angle of bevel.
The glass being fixed as above stated and the angle of bevel being also adjusted
the apparatus is made to travel laterally backwards and forwards across the face
of a vertical grinding mill. The edge of the glass to be bevelled being placed
at B' Fig. 1.
The frame A is propelled laterally forwards and backwards by means of a chain
as shewn at M. in the drawings annexed hereto or a belt or rope may be substituted
for the chain clutches are provided as shewn as P. P. p the two upper clutches P. P.
being fixed at each side at the top of the upright W. slightly above the natural
running line of chain M. the lower clutch p forms the extreme end of the lever "I"
and is placed midway under the upper clutches in order to press the chain upwards
and engage it with the upper clutches P. P. The lever J is fixed to main frame
on the front on pivots at J¹ jointed at J and J' Fig. 2 (the joint at J being
slotted) and goes through the upright W and is fixed thereto by the pivot J' Fig. 1
the upright W being slotted to allow the lever J to move up and down. For
greater security a crank lever is provided which is connected with the lever J by a
slotted moveable joint at J and which acts on pivot J and slides through the
plate J terminating with a cam head J' which is placed to engage with the fixed
points which are placed at either end of the line which the frame will travel and
are fixed on the ceiling slightly in front of that line.
Automatic movement is provided as follows: The drum n Figures 3 and 4 is
fixed on a shaft and connected by pulley and belt with ordinary machinery which
gives the first motion. A countershaft is provided as shewn on the drawings on
which are two fast pulleys and one loose pulley (the loose one being in the centre)
and one small toothed pulley O which is fast.
The countershaft is connected with drum n by a straight belt r and a crossed
belt which are divided by the shifting fork b and alternately give the second
motion. The chain or third motion is communicated from the small toothed
pulley O to the large toothed pulley N with which it engages so as to give a
slow even motion. N is made with a projecting toothed centre corresponding in
size with the small toothed pulley N' fixed at the other end of the line of the
chain.
..
The automatic gear immediately connecting the frame with the motive power is
provided by a spur W₁ on the upright W, and a sliding bar Z which is fitted to
slide between brackets u. u. and on which are two fixed points ee which are made
'so as to engage with the spur W and which can be shifted and refixed so as to
vary the distance the frame is required to traverse. The sliding bar Z is connected
with the shitting fork b by a cranked arm which is fitted with a slot to move on
a pivot Z and is further fixed to the ceiling at by a plate and a pivot on which
the arm h turns.
The cranked arm his continued beyond h¹ almost at a right angle and returns
downwards. so as to connect at its lower end at with the. shifting fork b the
cranked arm h and the shifting fork being fitted to move one with the other on
.

page_text: the point. The shifting fork b is pivoted on the lower end of a bracket which is
fixed to the ceiling at the point and the fork is so constructed as when working to
shift both belts from time to time off the pulleys on which they turn on to the
adjoining concentive pulleys and so back again.
In order further to explain how the frame is made to move automatically and by
what means it is started and stopped I say that while the frame is stationary and
after motion is given to the drum n by which the chain M is made to travel in its
circuit. I push the lever J up which causes the lower clutch p to press the top
line of the chain M against the top clutches P. P. and so sets the frame in motion.
When the spur W₁ comes into contract with either of the points e e (according to
the direction in which it is moving) the sliding bar Z is shifted which causes the
cranked arm to turn on its fixed point and also at Z¹. The shifting fork b
being connected with the cranked arm at his thus made to turn on its pivot l
and thereupon shifts the belt which was on one of the fast pulleys on to the loose
pulley and the belt which was on the loose pulley on to the other fast pulley.
The counter shaft is thus caused to run in the reverse direction and the same is
the case with the small toothed pulley O the pulley N & the chain M itself this
motion continues until the spur W₁ strikes the other projecting point E when the
motion it again reversed. The frame is stopped by pulling the lever J down which
causes the clutches to release the chain.
In case the spur W' and projecting points e. e. should fail to act any accident is
prevented by the former being automatically put out of gear & freed from motion
by means of the cam head J' which comes into contract with one of the fixed
points ee. The effect of this is to press down the crank lever which turns on its
pivot J & being jointed at J' causes the lever J to turn on its pivots J¹ and J*
whereupon the chain M is released and the frame is stopped. Although only one
mill has here been referred to I intend that a whole set of mills such as are required
for grinding smoothing & polishing shall be operated by & in conjunction with this
apparatus and although the apparatus is capable of bevelling one large sheet or
plate of glass it is also capable of bevelling several pieces or plates of glass fixed
in a row for the same purpose. A soft padding of india rubber or such like
substance is intended to be used on the face of the easel B the clamps R and the
cross bar D.
By the use of ordinary adjustments the said apparatus can be made to operate in
continuation with an ordinary horizontal bevelling mill.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to he performed I declare that what I
claim is as follows.
1st. In an apparatus for bevelling glass the use of a vertical travelling frame
constructed and propelled substantially as berein described or shown.
2nd. In such an apparatus for bevelling glass as aforesaid the use of an
adjustable easel for carrying the glass constructed substantially as herein described
or shown.
3rd. In such an apparatus for bevelling glass as aforesaid the use of gear for
moving the frame substantially as herein described or shown.
4th. With such an apparatus for bevelling glass as aforesaid the use of a vertical
mill.
A
1100
W. O. BAILEY,
Applicant.