A Glass-cutting Machine.
Year: 1898

page_text: Date of Application, 1st Nov., 1893-Accepted, 4th Feb., 1899
COMPLETE
SPECIFICATION.
A Glass-cutting Machine.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, as communicated to me by Wilhelm
Gelsdorf, Junior, of Weisswasser, Silesia, Germany, Merchant, to be particularly
described and ascertained in and by the following statement: -
Hitherto the incisions and ornaments in cut glass tumblers, dishes and the like
have been produced by holding the object against a revolving wheel whose surface
is provided with a grinding material. This manner of working has great dis-
advantages; first, a great waste of time as only one incision or groove can be
ground at one time; secondly, the spaces between the incisions or grooves will vary
unless the operator is an eminently skilful man.
This invention has for its object to produce a machine, in which these dis-
advantages are eliminated, all incisions or grooves being cut in the object at one
and the same time.
The glass-cutting machine which forms the subject of this invention is shown in
the accompanying drawings wherein, Fig. 1 is a longitudinal section, and Fig. 2 a
partial view of the machine; Fig. 3 is a diagram showing the foot-plate with the
scale marked thereon, and Fig. 4 is an elevation on a small scale showing the
whole machine. The same parts are lettered to correspond in all the figures.
The foot-plate a is marked or fitted with a scale so arranged that its circumference
is, for instance, divided into 10, 12, 14, 16 and 18 equal parts. On the dividing
points of the scale dove-tailed slots are arranged into which brackets 6 may be
placed and fixed.
The number of the brackets to be fixed to the foot-plate depends upon the
number of the grooves or incisions to be cut into the tumbler or other object. If 18
of such grooves or incisions are to be cut into the object 18 brackets are fixed in the .
slots by means of screws c. The brackets b carry each a worm wheel d meshing
with a worm e on the shaft of which is fixed a little pinion f. This pinion meshes
with a wheel g which is operated from the gear h.
The
On the shaft of the worm-wheel d is fixed a small pulley i driving by the,
preferably elastic, belt the upper pulley . This pulley is mounted on the axle n
which carries also the cutting wheel m and runs in movable supports o.
supports o are mounted on a disc p, which is furnished with dove-tailed slots and
screws corresponding to those on the foot plate a. The number of these supports o
is always equal to that of the brackets 6 and the disc p is provided with the same
scale as the foot-plate a.
?"
Through the centre of the disc 2 passes a standard carrying a plate 1 on which
is placed the objects to be cut. In order to fix the objects in its position during
the work a weight t is placed therein. The standard r can be shifted vertically by
means of the worm and worm wheel u and screwed spindle u¹.
A weight is provided for the purpose of pressing all the cutting wheels m
equally against the object s, this weight being suspended on cords attached to

page_text: the supports o.
When the weight is lifted, springs w act so as to draw back all the
cutting-wheels to the same distance from the object.
With this machine grooves or incisions can be cut in tumblers or other objects
of all diameters, the grooves or incisions being made at equal distances one from the
other, owing to the scale on the foot-plate. It is obvious that by these means the
greatest exactness and a great saving of time is obtained.
The machine may also be constructed in such a manner that a number of
objects can be simultaneously provided each with one groove or incision at a time.
To this end the machine described must be made so large that all the objects can be
placed on the centre-plate and by suitably arranged mechanism which by itself
forms no part of the present invention all the objects can be simultaneously
partially turned so as to bring them into proper positions for the next grooves or
incisions, or ornament.
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
1. A glass-cutting machine, having driving mechanisms arranged on superposed
plates provided with dove-tailed slots equidistant and corresponding to the number
of grooves incisions or ornaments to be cut in any one object, said driving devices
carrying cutting wheels so that the desired number of grooves, incisions or orna-
ments is ground simultaneously into the object placed on a central standard
substantially as described and illustrated in the accompanying drawings.
2. A modification of the glass cutting machine mentioned in Claim 1, by which
a number of cups are each provided simultaneously with one groove incision or
ornament at a time substantially as described.
This 1at duv of November 1898