Improvements in the Manufacture of Scissors and Shears and in Appliances to be used in the said Manufacture.
Year: 1890

page_text: Dte of Application, 23rd Oct., 1890
Complete Specification Left, 18th July, 1891-Accepted, 22nd Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Scissors and Shears and in
Appliances to be used in the said Manufacture.
I, ISAAC WAINE, of the firm of John Waine & Sons, of Britannia Works,
Willenhall, Staffordshire, Lock Manufacturer, do hereby declare the nature of
this invention to be as follows:-
This invention has reference to the manufacture of the blades of scissors and
shears which have heretofore been made by forging with hand tools by skilled
workmen which is a comparatively slow and expensive process.
According to this invention I produce scissors and shear blades by a series of
combined stamping and piercing operations performed in specially constructed dies
by which I am enabled to dispense with skilled labour and produce the said blades
at a much cheaper rate than heretofore.
In making for instance a scissors blade according to this invention I take a
heated bar or strip of steel or other suitable ductile metal or alloy and by means
of a pair of dies worked in a stamp or press I produce (by preference at one blow)
a stamping having the contour of the required scissors blade with a thin web or fin
round the edge. This web or fin also extends across or partly across the eye of the
blade. By means of a pair of piercing dies of the shape of the scissors blade I
separate the web or fin from the scissors blade and at the same time or by a
subsequent or prior operation I pierce out the web or fin from the eye leaving the
scissors blade ready for grinding.
I prefer to form the pair of stamping dies so that the joint between the two dies
corresponds with and is in the same plane as the cutting edge of the blade.
My invention as above described can be similarly applied to the manufacture of
shear blades.
By the word "blade" I mean the whole of the limb, that is the cutting part and
the eye or tang.
Dated this 22nd day of October 1890.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Scissors and Shears and in
Appliances to be used in the said Manufacture.
I, ISAAC WAINE, of the firm of John Waine & Sons, of Britannia Works,
Willenhall, Staffordshire, Lock 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 :-
This invention has reference to the manufacture of the blades of scissors and
shears which have heretofore been made by forging with hand tools by skilled
workmen which is a comparatively slow and expensive process.
According to this invention I produce scissors and shear blades by a series of
combined stamping and piercing operations performed in specially constructed dies
by which I am enabled to dispense with skilled labour and produce the said blades
at a much cheaper rate than heretofore.
By the word blade mean the whole of the limb, that is the cutting part and the
eve or tang.

page_text: I will describe my invention by referring to the accompanying sheet of drawings
which illustrate my invention as applied to the manufacture of scissors blades.
Fig. 1 represents partly in section a pair of stamping dies which I employ in the
said manufacture, the upper part only of the bottom die being shewn ;
Fig. 2 is'a plan of the bottom die and Fig. 3 is an inverted plan of the top die ;
Fig. 4 represents in plan and side-view the stamped and partly formed scissors
blade as it appears on leaving the dies shewn by Figs. 1, 2 and 3, and
Fig. 5 represents in plan and side view the same scissors blade when ready for
grinding.
In making scissors blades according to this invention, I take a heated bar or strip
of steel or other suitable ductile metal or alloy. A round bar of a little larger
cross sectional area than the largest cross sectional area of the required scissors
blade will answer very well. By means of the top die A. and the bottom die B
arranged in a stamp or press, the latter being fixed and stationary and the former
being carried by the stamping head which is moveable up and down the guides in
the usual way, I produce (by preference at one blow) a stamping such as shewn by
Fig. 4 having the contour of the required scissors blade with a thin web or fin c
round the edge. This web or fin also extends across or partly across the eye part d
of the blade. By means of a pair of piercing dies of the shape of the scissors
blade I separate the web or fin c from the scissors blade and, preferably by a
subsequent or prior operation, I pierce out the web or fin from the eye leaving the
scissors blade as shewn by Fig. 5 ready for grinding.
I prefer to form the pair of stamping dies A and B as shewn on the drawing
that is to say, the bottom die B has a depression corresponding with the whole of
the limb and the other die A has a depression a corresponding with the eye d and
that part of the limb which joins the eye to the cutting part, the joint between the
two dies will then correspond with and be in the same plane as the cutting edge of
the blade, and leave the web or fin c on the stamping level with the face of the
cutting part of the blade as shewn in Fig. 4.
My invention as above described as applied to the manufacture of scissors blades
can be similarly applied to the manufacture of the blades of hand shears.and other
cross limbed shears, the dies being sunk to correspond with the shape of the blade
required.
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. The manufacture of scissors and shear blades from heated bars or rods of steel
or of other suitable ductile metal or alloy by means of a pair of stamping dies such
as A B which stamp the heated bar or rod to the required shape of a scissors or
shear blade with a projecting web or fin around or partly around the edge,
substantially as hereinbefore described.
2. In the manufacture of scissors and shear blades from heated bars or rods of
steel or of other suitable ductile metal or alloy, the use of a pair of stamping dies
such as A B, one of the said dies being sunk as at to correspond with the whole
of the scissors or shear blade and the other die being sunk as at a to correspond
with the eye and a certain part of the said blade, so as to form a stamping such as
shewn by Fig. 4, substantially as hereinbefore described and illustrated in the
accompanying drawing.
Dated this 17th day of Lul.. 1001
CHARLES BOSWORTH KETLEY,
Agent for the. Applicant.