IMPROVEMENTS IN NUT CRACKERS
Year: 1881

page_text: LETTERS PATENT to Lorentz Albert Groth, K.G.V., Civil Engineer and
Proprietor of the Scandinavian Patent Office, under the Firm of L. A. Groth
& Co.; 97, Finsbury Pavement, London, and 20, Forhaabningsholms Allec,
,,Copenhagen, for an Invention of "IMPROVEMENTS IN NUT CRACKERS." A
"communication from abroad by Mitchell Renz, of Bridgeport, County of
Fairfield and State of Connecticut, and Abraham. Kaufmann, of New York'
PROVISIONAL SPECIFICATION left by the said Lorentz Albert Groth at
the Office of the Commissioners of Patents on the 22nd April 1881.
LORENTZ ALBERT GROTH, K.G.V., Civil Engineer and Proprietor of the Scandinavian
Patent Office, under the Firm of L. A. Groth & Co., 97, Finsbury Pavement,
London, and 20, Forhaabningsholms Allec, Copenhagen.
"IMPROVEMENTS IN NUT
CRACKERS." A communication from abroad by Mitchell Renz, of Bridgeport,
County of Fairfield and State of Connecticut, and Abraham Kaufmann, of New
York City, in the County and State of New York, U.S.A.
This Invention relates to an improved nutcracker with two moveable jaws which
are worked simultaneously in connection with fulcrummed handles, so as to give
great power to the jaws, and adapt them readily for cracking nuts of large and
small size.
The Invention consists of two moveable jaws which are jointed at their outer
ends, and pivoted at their inner curved ends to fulcrummed handles which are
furthermore below the fulcrum provided with smaller inner jaws concaved and
ribbed, and which may be used for cracking smaller nuts, such as hazlenuts, &c.
The considerable leverage obtained by the handles of this implement allows the
cracking of large and very hard nuts with comparatively little exertion.
The implement may also be conveniently used for pressing corks.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Lorentz Albert Groth in the Great Seal Patent Office on the
22nd October 1881.
LORENTZ ALBERT GROTH, K.G.V., Civil Engineer and Proprietor of the Scandinavian
Patent Office, under the Firm of L. A. Groth & Co., 97, Finsbury Pavement,
London, and 20, Forhaabningsholms Allee, Copenhagen. "IMPROVEMENTS IN NUT
CRACKERS." A communication from abroad by Mitchell Renz, of Bridgeport,
County of Fairfield and State of Connecticut, and Abraham Kaufmann, of New
York City, in the County & State of New York, U.S.A.
This Invention relates to an improved nut cracker with two moveable jaws
which are worked simultaneously in connection with fulcrummed handles, so as to
give great power to the jaws, and adapt them readily for cracking nuts of large
and small size.
The Invention consists of two movable jaws which are jointed at their outer
ends and pivoted at their inner curved ends to fulcrummed handles, which are
furthermore below the fulcrum provided with inner smaller jaws. In the accom-
panying Drawings, Figs. 1 and 3 represent side elevations of my improved nut-
cracker, and Figs. 2 and 4 are horizontal sections of the same on lines x, x, and y, y,
Figs. 1 and 3:
Similar letters of reference indicate corresponding parts. A, A, in the Drawings
represent two movable jaws which are jointed at their outer ends by a connecting
pivot a, and at the inner inwardly curved ends by pivots b to handles B, B, which
are fulcrummed to each other either above or below the pivot connection, with the
moveable jaws A, A, shewn in Figs. 1 and 3.
The jaws A, A, are roughened or serrated at their inner faces for properly taking
hold of the nuts. The handles B, B, are also provided at their inside below their
fulcrated, with smaller concaved and ribbed jaws c, c, which may be used for
cracking smaller nuts, such as hazelnuts, &c.
By opening the handles of the implement the moveable jaws are spread apart so
that nuts of any size may be readily inserted between the same, and cracked by
the closing of the jaws on the approach of handles toward each other.
. The considerable leverage obtained by the handles facilitates the cracking of the
nuts, and admits the opening of very hard and tough nuts with comparatively
little exertion.
:
:
:
In cracking the nuts both jaws are moved simultaneously so as to act with equal
power upon both sides of the nuts...
The implement may also be, conveniently used for: compressing large- and
small corks, which is an additional feature of my nutcracker, which furthermore
presents a neat appearance, owing to the symmetrical arrangement of the handles
and jaws.
Having thus described the nature of the said Invention, and the manner in
which the same is to be carried into effect, I claim as new and desire to secure by
Letters Patent,-
First. In a nutcracker; the combination of two movable jaws which are jointed
together at their outer ends with fulcrummed handles, which are jointed to the
opposite ends of the movable jaws, substantially as and for the purpose set.forth.
Second. In a nutcracker, the combination of the movable jaws which are jointed
together at their outer ends with fulcrummed handles, which are pivotted to the

page_text: opposite ends of the movable jaws, and provided with smaller inside jaws below
the fulcrum, substantially as herein set forth.
In witness whereof, I, the said Lorentz Albert Groth, have hereunto set
my hand and seal, this Eighteenth day of October, in the year of our
Lord One thousand eight hundred and eighty one.
TODENTE
AT DADT ADOTT
TODENT AT DET DATI
LO
TALKOR STAYS
GROTHI
(i.s.)