IMPROVEMENTS IN SCISSORS, HAND SHEARS, AND OTHER SIMILAR CUTTING INSTRUMENTS
Year: 1883

page_text: LETTERS PATENT to Lorentz Albert Groth, K.G.V Civil Engineer and Managing
Director of The Universal Inventors and Patentees Financial Company Limited
30 Finsbury Pavement London E.C. for an Invention of "IMPROVEMENTS
IN SCISSORS, HAND SHEARS, AND OTHER SIMILAR CUTTING INSTRUMENTS
communicated to him from abroad by Bernhard Cunze of Berlin in the
German Empire.
15
PROVISIONAL SPECIFICATION left by the said Lorentz Albert Groth at the
Office of the Commissioners of Patents on the 31st May 1883.
LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of The
Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement London E.C. "IMPROVEMENTS IN SCISSORS, HAND SHEARS, AND OTHER
SIMILAR CUTTING INSTRUMENTS A. communication to me from abroad by Bernhard
Cunze of Berlin in the German Empire
"
In the construction of scissors or hand shears heretofore in use, either the whole
scissors were made of steel, or the handles made of iron, or some other material,
and the steel blades made in one piece were fastened on to the handles somewhere
near the pin on which they turn. These methods of construction have the great
disadvantage that when the cutting edges are wholly worn out the whole scissor
must be either thrown away or a costly and difficult reparation be made before
they can practically be of any further use.
Scissors, hand shears, and similar cutting instruments manufactured after the
present invention obviate the above named disadvantages
I make the handles and the blades of one piece and provide the latter with
moveable and adjustable cutting edges which are made of steel and secured to the
blades by means of screws and so adjusted as to obtain the best cutting effect.
This method of construction has the advantage that when the cutting edges are
wholly worn out fresh ones can be fixed in their place, the other parts of the
scissors &c continuing to be useful and besides this the danger of burning the
[Price Edi

page_text: steel during the manufacture is entirely obviated as the changeable edges can be
made direct from cold steel by means of filing
In order fully to use the whole of the cutting edges the blades have transverse
slots or cuttings made in them where the adjusting screws are fastened thus
allowing of the cutting edges to be moved further forward as required.
Cutting edges of various shapes, such as for cutting curves &c can be likewise
adjusted to the scissors or other instrument similar thereto.
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
30th November 1883.
LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of the
Universal Inventors and Patentees Financial Company Limited, 30 Finsbury
Pavement, London E.C. "IMPROVEMENTS IN SCISSORS, HAND SHEARS AND OTHER
SIMILAR CUTTING INSTRUMENTS." A communication to me from abroad by Bernhard
Cunze of Berlin in the Empire of Germany
In the construction of hand scissors heretofore in use, either the whole scissors
were made of steel or the handles made of iron or some other material, and the
steel blades made in one piece were fastened on to the handles somewhere near to
the pin on which they turn.
These methods of construction have the great disadvantage that when the cutting
edges are wholly worn out, the whole scissors must be either thrown away or a
costly and difficult reparation be made before they can practically be of any
further use
Scissors manufactured after my present invention obviate the above named
disadvantages
I make the handles and the blades of one piece and provide the latter B. with
moveable and adjustable cutting edges A which are made of steel and secured
to the blades by means of screws D and so adjusted as to obtain the best
cutting effect
This method of construction has the advantage that when the cutting edges are
wholly worn out fresh ones can be fixed; the other parts of the scissors continuing
to be useful, and besides this, the danger of burning the steel during the manu-
facture is entirely obviated as the changeable edges can be made direct from cold
steel by means of filing
In order fully to use the whole of the cutting edges A the blades B have
transverse slots or cuttings E made in them where the adjusting screws D, are
fastened, thus allowing the cutting edges when somewhat worn to be moved
further forward as required

page_text: Cutting edges of various shapes Figs. 2 & 3 such as for cutting curves &c. can be
likewise adjusted to the scissors or other instrument similar thereto
Having now described the nature of the said invention and the manner in which
the same is to be carried into effect, I would have it understood that what I
claim is:
First. Hand shears and other similar cutting implements provided with adjustable
and renewable blades substantially as above described and illustrated in the
drawings
In witness whereof I the said Lorentz Albert Groth have hereunto set my hand
and seal this Thirtieth day of November in the year of our Lord, one thousand
eight hundred and eighty three.
LORENTZ ALBERT GROTH (LA)