Improved Apparatus for Grinding and Polishing the Edges of Glass, Marble, and other Substances, and for Rounding, Bevelling, and Shaping the same.
Year: 1893

page_text: Date of Application, 25th May, 1893
Complete Specification Left, 26th Feb., 1894-Accepted, 25th June, 1894
PROVISIONAL SPECIFICATION.
Improved Apparatus for Grinding and Polishing the Edges of Glass,
Marble, and other Substances, and for Rounding, Bevelling, and
Shaping the same.
We, GUSTAV EDWARD WINKELMANN, 18 Seven Sisters Road Tottenham
Cabinet Maker, JAMES PARR and THOMAS PARR 18 and 20 Great Eastern
Street London E.C. Glass Merchants do hereby declare the nature of this
invention to be as follows:-
:―
A number of wheels or cutters with shaped grooves on the edges are placed one
over the other on a spindle in the centre of a frame around which are arranged
tables to carry the plates or slabs to be cut or shaped.
For cutting mitres a wheel shaped on both edges is used.
For straight edges a bar is used the bar being grooved according to the shape
required to be cut.
The plates or slabs may be inserted in the wheels or cutters & in the grooves of
the bars either singly or in pairs in the latter case two edges being cut or shaped
at one operation.
The bar may be made to slide or to run on wheels and to move in any position
or direction.
A number of wheels or cutters of varying sizes are placed on a spindle forming a
sort of pyramid. The spindle is fitted with a pulley for rotating the same, and
with a cog-wheel for moving the tables which carry the article to be cut or
bevelled.
The wheels or cutters are shaped on the edges to give the required shape to the
edges of the plates or slabs operated upon.
These wheels vary in substance and material according as they are required for
grinding or polishing purposes.
By this invention plates or slabs may be cut or bevelled in pairs by placing
them back to back and inserting them in wheels or cutters having a V or other
shaped groove on the edge, and also by using a cutter or cutters having the edges
bevelled on both sides and working between the two plates placed together, thus
cutting or bevelling two edges at one operation.
The spindle on which the cutters are placed is put in the centre of a frame
around which are placed a number of turn tables, the frames of these tables are
fitted on axles or spindles which latter are fitted with cog-wheels in such a manner
as to bring the tables and cutters into work at one time. Under each table are
placed two round sliding frames fitted with springs to regulate the table according
to the shape of the work to be done. An automatic lever attached to the frame
carries the glass &c. to the cutters.
By means of telescopic screws or slides these tables can be raised or lowered.
For cutting mitres the wheel or cutter is bevelled on both the edges and is
attached to the stand of a sliding table on which the material to be cut is placed so
as to allow the table to slide automatically under the edges of the cutters.
The foregoing is intended more particularly to describe the method of cutting or
bevelling material of irregular shape. For straight work, or for slabs or plates of
regular form it is proposed to use cutting bars either flat or shaped which may be
made in one or more pieces and capable of being moved to and fro in a slide or on
wheels. These bars have a series of grooves cut or made on the face coinciding

page_text: with the shape desired to be cut or bevelled. The slabs or plates to be operated
upon may be inserted in these grooves either singly or in pairs as described
previously by the method first explained. The plates or slabs are taken to the
cutters by sliding tables constructed in the same way as named previously and
moved in a rack above the sliding bars. The cutting bars and tables may be
moved to and fro either separately or together and in a horizontal, vertical or
slanting direction according to the position in which the machine is placed.
Dated this Twenty-fifth day of May 1893.
G. E. WINKELMANN.
JAMES PARR.
THOMAS PARR.
Improved Apparatus for Grinding and Polishing the Edges of Glass,
Marble, and other Substances, and for Rounding, Bevelling, and
Shaping the same.
We GUSTAV EDWARD WINKELMANN of 18 Seven Sisters Road, Tottenham,
Cabinet Maker, JAMES PARR and THOMAS PARR 18 and 20 Great Eastern
Street London E.C. Glass Merchants, 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 :-
A number of wheels or cutters with shaped grooves on the edges are placed one
over the other on a spindle in the centre of a frame around which are arranged
tables to carry the plates or slabs to be cut or shaped.
For cutting mitres a wheel shaped on both edges is used.
For cutting straight edges a bar is used, the bar being shaped or grooved
according to the shape required to be cut.
The plates or slabs to be cut may be inserted in the wheels or cutters and in the
grooves of the bars either singly or in pairs, in the latter case two edges being cut
or shaped at one operation.
The bar may be made to slide or to run on wheels and to move in any position
or direction.
A number of wheels or cutters of varying sizes are placed on a spindle forming a
sort of a pyramid. The spindle is fitted with a pulley for rotating the same and
with a cog wheel for moving by any suitable means the tables which carry the
article to be cut or bevelled.
The wheels or cutters are shaped on the edges to give the required shape to the
edges of the plates or slabs operated upon.
These wheels vary in substance and material according as they are required for
grinding or polishing purposes.
By this invention plates or slabs may be cut or bevelled in pairs or singly by
placing them back to back and inserting them in wheels or cutters having a V or
other shaped groove on the edge and also by using a cutter or cutters having the
edges bevelled or shaped on both sides and working between two plates placed
edge to edge thus cutting or bevelling two edges at one operation.
The spindle on which the cutters are placed is put in the centre of a frame
around which are placed a number of turn tables the frames of these tables are
fitted on axles or spindles which latter are fitted with cog-wheels in such a manner
as to bring the tables and cutters into work at one time. Under each table are
placed two round sliding frames fitted with springs to regulate the table according
to the shape of the work to be done. An automatic lever attached to the frame
carries the glass &c. to the cutters. By means of telescopic screws or slides these
tables can be raised or lowered.
For cutting mitres the wheel or cutter is bevelled on both the edges and is

page_text: attached to the stand of a sliding table on which the material to be cut is placed
so as to allow the table to slide automatically under the edges of the cutters.
The foregoing is intended more particularly to describe the method of cutting
or bevelling material of regular shape. For straight work or for slabs or plates
of regular form it is proposed to use cutting bars either flat or shaped which
may be made in one or more pieces and capable of being moved to and fro in a
slide or on wheels. These bars have a series of grooves cut or made on the face
coinciding with the shape desired to be cut or bevelled on the slabs or plates.
The slabs or plates to be operated upon may be inserted in these grooves either singly
or in pairs as described previously by the method first explained. The plates or
slabs are taken to the cutters by sliding tables constructed in the same way as
named previously and moved in a rack above the sliding bars. The cutting bars
and tables may be moved to and fro either separately or together and in a
horizontal, vertical, or slanting direction according to the position in which the
machine is placed.
In the accompanying drawings showing one way of carrying out our invention,
Fig. 1. represents plan of a glass bevelling machine.
Fig. 2 is a side elevation of same.
Fig. 3 is end elevation of same.
Fig. 4. is end elevation of another form of bar shewing several grooves.
Fig. 5 is elevation of rotating grooved wheel.
The same letters denote the same parts in all the figures.
A represents the grooved bar fastened to a metal plate B which is connected'
with driving crank D. and supported in bearings E. E. C. is a table on which is
placed the glass F. G. is bar for cutting a number of plates at one time and can
be used similarly to A. H is one of a series of grooved wheels which may be
substituted for A.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manuer the same is to be performed, we declare that what we
claim is.
I. In an apparatus for grinding and polishing the edges of glass, marble, and
other substances and for rounding, bevelling and shaping the same, the combina-
tion of a series of rotating wheels grooved on the edges, with tables for holding
the glass &c. a reciprocating motion being given by any suitable means to either
the wheels or tables or both.
II. The combination of grooved sliding bars with tables substantially as described
above.
III. The combination of bars, having both edges bevelled or shaped, with tables
having a reciprocating motion upon which are placed edge to edge the plates to be
bevelled. The bar working to and fro between two of the plates cuts or bevels
one edge of each plate at the same time.
26th February 1894.
G. E. WINKELMANN.
JAS. PARR.
THOMAS PARR.
20th February 1o94.
G. E. WINKELMANN.
JAS. PARR.
THOMAS PARR.