Improvements in the Manufacture of Scissors.
Year: 1890

page_text: Date of Application, 8th Aug., 1890
Complete Specification Left, 3rd June, 1991-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Scissors.
EDWIN ARTHUR GREEN & WALTER ERNEST GREEN, Mitre Works Gibraltar
Street, Sheffield, Yorks, Cutlery Manufacturers, do hereby declare the nature of
this invention to be as follows:-
Our invention is an improvement in the method of manufacturing scissors,
whereby the bows are more quickly shaped and polished than by former processes,
and by which greater uniformity in shape is acquired, and by the application of
screws with conical heads they are prevented from wearing loose at the screws.
To better explain the process we supply herewith drawings of the parts of
scissors in the different stages of manufacture by our improved method, which
drawings are marked with letters and referred to in the following description.
1. We make the bow of scissor circular either by forging, pressing, punching, or
stamping.
Fig. 1. shews part of scissor in rough with circular bow A. B. C.
Fig. 2. shows section of same bow.
II. We shape the bow to any desired section and polish the same in a lathe or
other similar instrument.
Fig. 3 shews scissor after the circular bow has been shaped to desired section,
the section is shewn in Fig. 4.
III. We force by pressing or otherwise the bow from the circular to any desired
shape.
Fig. 5. shews part of scissor after bow has been forced into an oval shape.
IIII. We bore a regular taper hole through the top blade of scissor, into which
is fitted the conical head of a screw which passes through the top blade and is
screwed into the bottom blade.
Fig. 6. shews a longitudinal section of top blade of scissor (from the points D
to E. Fig. 5.) with taper hole through.
Fig. 7. shews screw with conical head.
Fig. 8. shews longitudinal section of two blades screwed together.
EDWIN ARTHUR GREEN.
WALTER ERNEST GREEN.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Scissors.
EDWIN ARTHUR GREEN and WALTER ERNEST GREEN, Cutlery Manu-
facturers, Mitre Works, Gibraltar Street Sheffield, in the County of York, do
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement—
Our invention relates to improvements in the process, or method of manufacturing
scissors, or shears of all kinds, which have bows or openings on the ends of the
shanks for the purpose of receiving the thumb & finger, or fingers, by which means
the scissors or shears are operated; the object of the said invention being to
acquire greater uniformity of shape, and to prevent then from wearing loose at the
screws.
To better explain the process we refer below to drawings, which were supplied
with our Provisional Specification dated 8th August 190 and numbered 12413,

page_text: which drawings are to be used for the purpose of this Specification, and these
show parts of scissors in different stages of manufacture.
1. We make the bow of scissor circular either by forging, pressing, punching, or
stamping.
Fig. I shows part of scissor in rough with circular bow A B C.
Fig. II. shows section of same bow.
2. We shape the bow to any desired section by turning, scraping, or otherwise
manipulating the same in a lathe or other similar tool or appliance, and we also
polish the same in a similar manner in a lathe or other similar appliance.
Fig. III. shows part of scissor after bow has been shaped, and
Fig. IV. shows section of same; but we do not confine ourselves to the shape
shown in section,-the bow may be round, oval, or any other desired shape.
3. We force by pressing, or otherwise, the bows from the circular to any shape.
Fig. V. shows parts of scissor after bow has been forced into an oval shape.
4. We bore a regular taper hole through the top blade of scissors, into which is
fitted the conical, or taper head or shank of a screw, which passes through the top
blade and is screwed into the bottom blade.
Fig. VI. shows a longitudinal section of top blade of scissors (from the points D
to E Fig. 5) with taper hole through.
Fig. VII. shows the screw with conical, or taper head or shank.
Fig. VIII. shows longitudinal section of two blades, screwed together.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
1. The method or process of manufacturing scissors, or shears having bows of an
oval or other form, by first making the said bows circular, and then shaping them
into the required form of section, in a lathe or other similar appliance, and also
polishing them in a lathe or similar appliance, and lastly by compressing the
circular bows in their otherwise finished state into an oval or other form, sub-
stantially & materially as hereinbefore described & illustrated.
2. The making the screw to fasten the two parts of the scissors. together with a
conical, or taper head or shank substantially as hereinbefore described.
3. The combination of making scissors or shears, first with circular bows, then
shaping, and polishing the said bows in a lathe or other similar appliance, and
afterwards coinpressing them into an oval or other form-with the fastening the
parts together with a screw with a conical, or taper head or shank substantially as
herein before described, or any mere modification thereof.
Dated this Eighth day of May 1891.
EDWIN ARTHUR GREEN.
WALTER ERNEST GREEN.