Improvements in the Process of Manufacturing Scissors and Shears.
Year: 1890

page_text: Date of Application, 5th Apr., 1890
Complete Specification Left, 5th Jan., 1891-Accepted, 14th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Process of Manufacturing Scissors and
Shears.
İ ABRAHAM FRITH of 32 Cambridge Street Sheffield in the County of York,
Steel Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My present invention relates to the process of manufacturing scissors and shears
and the object is to improve this process so that the said scissors and shears may be
produced more economically and quickly than has hitherto been the case to attain.
which I dispense with the hand forging of the blades entirely and after I have
flied the rough shape of each blade from the sheet steel in the usual way. I
employ suitable dies which are made to the finished form of the blade.
A top.
and bottom die is arranged for each blade and the flied shape is placed between the
same and the said dies are arranged under a drop-hammer or stamping apparatus in
such a manner that a suitable force is applied to the top die in order to stamp the
blade into the finished form then after the blades have been so stamped they are
put together in order to form the scissors or shears and then they are completed in
the ordinary manner.
Dated this 3rd day of Anvil 1900.
H. F. BOUGHTON, M.I. Mech. E.,
Barnsley and Sheffield, Agent.
COMPLETE SPECIFICATION.
Improvements in the Process of Manufacturing Soissors and
Shears.
I ABRAHAM FRITH of 32 Cambridge Street Sheffield in the County of York
Steel Manufacturer 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 :-
My present invention relates to the process of manufacturing scissors and shears
and the object thereof is to improve the process so that the blades of said scissors
and shears may be produced more economically and quickly than has hitherto been
the case to attain which I in some cases dispense with the hand forging of the
blades entirely and after I have flied the rough shape of each blade from the sheet
steel in the usual manner I employ suitable dies which are made to correspond to
the finished form of the blades. A top and bottom die is arranged for each blade
the flied shape is placed between the same and the said dies are arranged under a
drop hammer or within a suitable stamping apparatus in such a manner that the
required force can be applied to the top die in order to stamp out the blade to the
finished form.
I have found that when forming scissors and small shear blades in accordance
with my present invention it is more economical to stamp out the finished forms
direct from the rod steel and for this purpose I first heat and hammer down to a
suitable blunt point the end of the steel rod and then place it direct between the
top and bottom dies to be stamped thus dispensing with the flying out to shape of
the blades previous to the stamping to finished forms.
In order that my invention may be better understood and more readily carried
into effect I will proceed to describe the same by the aid of the drawings attached
hereunto in which the same letters of reference will be found to denote corre-
sponding parts in each view.

page_text: Fig. 1 represents a plan of a rough shape of a blade of a pair of scissors or
shears which has been flied out of sheet steel in the ordinary way.
Fig. 2 is a sectional plan taken on line a a of Fig. 3 which latter is a front
elevation of a stamping apparatus which may be used in carrying into effect my
invention.
Fig. 4 is a side elevation of a portion of a steel rod from which I form the
blades and
Fig. 5 is a plan of the dies I employ for forming the blades from the steel rods.
In one process I first fly the blades out to the rough shape as shown at D Fig. 1
and subsequently place said flied blade D on the shape finishing die E which
rests firmly on the bed gl of the stamping apparatus G.
The said die E is made with a countersunk portion corresponding to the exact
shape of one side of the finished blade and the upper die H is made with a counter-
sunk. portion corresponding to the opposite side of the finished shape of the said
blade. After the blade D has been placed in position between the dies H and E
the die H is lifted up by means of the rope or chain g² high enough to give it the
necessary force when it falls upon the die E to strike up the finished form of the
blade D.
The centre part d¹ of the handle portion of blade D and any then projecting
portions which may extend from the sides of blade after it has been struck to shape
as described is removed either by means of a file or by being placed under a suitably
formed cutter as will be well understood.
In fashioning the blades D direct from the steel rod d² I first heat the end of
said rod and forge it to a point as shown at Fig. 4 subsequently I again heat it to
required temperature and place it between two dies similar to that shown at E Fig. 5
which dies are placed in the stamping apparatus G. The upper die H is then lifted
and allowed to descend with force thus stamping out the blade as shown at Fig. 5
and simultaneously forming a pointed portion on the rod d² the dies H and E being
arranged with recesses ¹ for this purpose so that it will be obvious that after forging
the first point on any rod the dies H and E form the rest on that rod and it is
only when a fresh rod is used that a point need be separately forged.
After the blade has been stamped out as described the part d or any projecting
part around the edges of said plate are removed either by filing or cutting in the
manner herein before described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In the manufacture of scissors or shears the use of dies such as H and E
whereby the blades may be stamped out to finished shape by a stamping apparatus
such as G from the flied blade D or direct from the rod-steel d substantially as
described.
D
9 1 .
CT
1001
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H. F. BOUGHTON,
Temple Chambers, London, Parade Chambers, Sheffield,
and Barnsley, Agent.