IMPROVEMENTS IN LEVER CORK-SOREWS
Year: 1883

page_text: "
LETTERS PATENT to Rudolph Dolberg, of Rostock, Mecklenburg-Schwerin,
German Empire, for an Invention of "IMPROVEMENTS IN LEVER CORK-SOREWS
a communication to him from Carl F. A. Wienke, Civil Engineer, of Rostock,
Mecklenburg-Schwerin, German Empire
PROVISIONAL SPECIFICATION left by the said Rudolph Dolberg at the Office
of the Commissioners of Patents on the 20th April 1883.
RUDOLPH DOLBERG of Rostock Mecklenburg Schwerin, German Empire
"IMPROVEMENTS IN LEVER CORK-SCREWS". [a communication to him from Carl
F. A. Wienke, Civil Engineer, of Rostock, Mecklenburg-Schwerin, German Empire]
This invention relates to cork-screws.
According to the said invention I provide two pieces of metal or the like which
form a single armed lever and also serve the purpose of a handle; between the said
two pieces which form the handle a spring is firmly rivetted and the worm and the
support provided with a projection adapted to bear on the neck of a bottle are
also pivotted between the said pieces so that the cork-screw will close in the same
manner as a pen knife. When the cork-screw is open the worm is held in position
by the said spring so that it can easily be driven into the cork, after which the
lever and support are pressed down, so that the projection thereon shall lie on the
top of the neck of the bottle. In this position the spring is raised by the support
out of engagement with the top of the worm whereby the latter is free to turn.
To withdraw the cork from the neck of a bottle the latter should be held with the
left hand, the fore finger at the same time keeping the support in its place and the
lever then pulled upward. The support presses against the edge of the bottle in
such a manner that the breaking of the bottle is not very liable to take place.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Rudolph Dolberg in the Great Seal Patent Office on the 15th October
1883.
"
RUDOLPH DOLBERG, of Rostock, Mecklenburg-Schwerin, German Empire.
"IMPROVEMENTS IN LEVER CORK-SCREWS A communication to me from Carl
F. A. Wienke, Civil Engineer, of Rostock, Mecklenburg-Schwerin, German Empire
This invention relates to cork-screws and consists in the novel construction and
arrangement of parts as hereinafter described.
In the accompanying drawing,
Figure 1 represents the improved cork-screw folded or closed.
Figure 2 is an underside view of the cork-screw when open, and
Figure 3 is a view of the cork-screw as it appears when in use
According to the said invention I provide two pieces a of metal or other suitable
material which form a single arned lever and also serve the purpose of a handle;
between the said two pieces a spring b is firmly rivetted. The screw c and the
support d, provided with a projection e adapted to bear upon the neck of a bottle,
are also pivotted between the said pieces a by means of rivets, as shown in Figure 2,
upon which they are capable of oscillating. It will thus be seen that the cork-
screw can be closed, as shown in Figure 1, in the same manner as the blades of a
pen-knife.
When the cork-screw is open, as in Figure 3, the screw c is held in position by
the spring b, so that it can easily be driven into the cork, after which the lever is
pressed down, so that the projection e of the support d shall bear upon the top of
the neck of the bottle. In this position, shown by dotted lines in Figure 3, the
spring 6 is raised by the support d out of engagement with the top of the screw, so
that the latter is free to turn upon its pivot.
To withdraw the cork from the neck of the bottle, the latter should be held
with the left-hand, the fore finger at the same time keeping the support d in its
place, the lever a should then be taken with the right hand and pulled in the
direction of the arrow Figure 3, whereby the cork will be withdrawn from the
neck of the bottle.
'
The support d, during the operation of withdrawing the cork, presses against
the neck of the bottle in such a manner that the said bottle is not liable to be
broken thereby.
Having thus fully described the said invention as communicated to me and the
manner of performing the same I wish it understood that I claim, in a cork-screw.
The support d, having the projection e, attached to the extremity of the handle
or lever a, to which is also pivotted the screw c, the said support and screw being
capable of folding against the handle a, substantially as described.
In witness whereof I the said Rudolph Dolberg have hereunto set my hand and
seal this Twelfth day of October in the year of Our Lord One thousand eight
hundred and eighty three.
I
תתת, חם