IMPROVEMENTS IN AND CON- NECTED WITH MACHINERY FOR CUTTING CORK STOPPERS
Year: 1875

page_text: LETTERS PATENT to Johannes Detlef Fürst Hald, of the City of
London, Engineer, for the Invention of "IMPROVEMENTS IN AND CON-
NECTED WITH MACHINERY FOR CUTTING CORK STOPPERS."-A communica-
tion from abroad by Emil Boethius, of Stockholm, Sweden.
PROVISIONAL SPECIFICATION left by Johannes Detlef Fürst Hald at
the Office of the Commissioners of Patents, with his Petition, on
the 16th April 1875.
I, JOHANNES DETLEF FÜRST HALD, of the City of London, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN AND CONNECTED WITH MACHINERY FOR CUTTING CORK STOPPERS," (a commu-
nication to me from abroad by Emil Boethius, of Stockholm, Sweden), to
be as follows:
-
The tubular cutting tool enters when at work an annular slot in the
face plate, behind which is a grinding or setting up apparatus consisting
of a pair of tongs with grinding or roughened jaws pressed towards each
other by a spring when cutting, and regulated in position by set screws.

page_text: ·
The driving spindle of the machine is actuated by fast and loose strap
pulleys and strap, and drives the hollow cutter spindle by bevel friction
wheels. The driving spindle also carries a strap pulley, which by strap
actuates a loose strap pulley on another spindle at right angles to the
direction of the cutter spindle; this other spindle is put in motion by
means of lever and treadle gear in connection with a friction clutch on
same, a spring keeping the said parts out of gear when the treadle is let
go. This spindle also carries a cam actuating a roller on the sliding
frame which carries the aforesaid face plate and setting apparatus, thus
pushing the said frame with the cork strip forwards as required for
cutting, a spring bringing it back, and causing the roller to follow the
cam.
The tubular cutter is fastened in the hollow spindle or its chuck by
an outer union nut, the spindle being formed with a conical hole, and
the cutter formed conical to suit.
The appliance for holding the cork strip consists of a pair of tongs,
the jaws of which pass round the sides of the face plate just in front of
the setting up tongs, with just so much distance apart as required for
the thinnest cork, the distance being adjusted by set screws.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Johannes Detlef Fürst Hald in the Great Scal
Patent Office on the 16th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHANNES
DETLEF FÜRST HALD, of the City of London, Engineer, send grecting.
year
of
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of April, in the
our Lord One thousand cight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Johannes Detlef Fürst Hald, Her
special licence that I, the said Johannes Detlef Fürst Hald, my executors,
administrators, and assigns, or such others as I, the said Johannes Detlef
Fürst Hald, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might

page_text: make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "IMPROVEMENTS IN AND CONNECTED WITH MACHINERY FOR CUTTING CORK
STOPPERS," a communication to me from abroad by Emil Boethius, of
Stockholm, Sweden, upon the condition (amongst others) that I, the
said Johannes Detlef Fürst Hald, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Johannes Detlef Fürst Hald, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the accom-
panying Drawings, and to the letters of reference marked thereon,
that is to say :-
The object of this Invention is to render the work of cork cutting
machines more even, and to save manual labor in connection therewith.
Cork cutting machines as heretofore made have been without an
automatic grinding or setting up apparatus for the cutting tool to render
it constantly effective during work. Another fault is that the tube
sticks, causing much loss of time. There has also been wanting an
apparatus for holding the strip of cork bark during the cutting, whereby
the danger could be avoided to the workman's bands. For thin cork
this is of especial importance, as it cannot be held steady enough by the
hand.
This Invention consists of the following parts:- An apparatus for
setting up the cutting tool, an appliance for causing the rotation of the
tube, and for guiding the cork strip to and from the tube by power,
means for the setting or fixing of the tubular cutter by means of a
conical sleeve, and a pair of tongs for holding the cork strip, and
whereby at the same time it is indicated whether the strip is thick
enough for corks of certain dimensions.
Figure 1 of the accompanying Drawings is a side elevation of a
machine constructed according to this Invention; Figure 2 is a section

page_text: on line A, B, Figure 1, seen from the right; Figure 3, section on the
same line from the left; Figure 4 is a plan; while Figure 5 is the
grinding or setting up appliance.
The setting up appliance, Figure 5, consists of a sleeve a, which is
inserted in a sliding frame b, provided with a face plate c, against which
the bark strip is pressed during the cutting, as in the ordinary machines.
The sleeve a has on the side against the tubular cutter s an annular
slot d, e, into which the tubes enters after cutting through the cork;
this annular slot is formed of a ring & screwed on by the outer edge of
the sleeve, and of a round plate e screwed on by means of a bar ƒ pro-
jecting from the sleeve. Just behind this annular slot the setting up
apparatus is arranged; this consists of a pair of tongs 9, g', attached to
a pin h, and provided with roughened parts i, i, on the jaws, which are
attached to each part y and g¹, and with a spring / which, while the
apparatus is at work, presses the roughened parts against the tubular
cutter; 1, 1, are set screws for setting the roughened jaws.
has also two openings m, m³, for cork cuttings and sand.
The sleeve a
The driving spindle of the machine is actuated by fast and loose
pulleys n, n¹, on the shaft o, which at its other end carries a bevel friction
whecl p, which by friction wheel or disc q fixed on spindle for holding
the cutting tools puts the latter in motion. The spindle is, like in
the old machines, made hollow for the cut corks to fall out through to
the left.
The machine is put in and out of gear by means of the striking gear
or fork t, Figures 1, 2, and 4. The shaft o has a strap pulley u, which by
strap communicates motion to the pulley w loose on the shaft x. The
pulley w can by friction clutch y working on a feather on the shaft be
connected to the shaft a. The clutch is by lever and treadle gear z
pushed into a conical recess in the strap pulley w; a spring keeps it out
of gear when the pressure of the foot is taken off. On the shaft x is
fixed a cam eccentric a¹ actuating a roller a² on the sliding frame 6 for
bringing the bark strip against the tubular cutter. A spiral spring o¹
causes the sliding frame to follow the circumference of the cam during
its rotation. The cork strip is thus held against the plate c, and carried
to or from the tubular cutter, and the movement of the cork strip can be
interrupted and commenced in a moment.

page_text: The fixing of the tubular cutter & is different from the ordinary mode
in that it is provided with a conical part or sleeve, which for fixing
merely wants to be pushed into a corresponding recess turned out in the
spindle r. It is held by an outer union nut.
The appliance for holding the cork strip consists of a pair of tongs a³.
The fulcrum pin ³, and handles e³, e³, are on the back of the plate c;
the jaws f¹ and få pass round the sides of the face place c, and meet just
in front of the tubes and setting up tongs, with only so much distance
apart when in their nearest position as required for the thinnest cork,
which can be cut to the required size. The distance can be adjusted by
set screws g², g³, and thereby of course the thickness of cut on the rough
side of the haul is made this