Improved Pliers or Nippers for Cutting Purposes.
Year: 1893

page_text: Date of Application, 21st Mar., 1893
Complete Specification Left. 29th Sept., 1893-Accepted, 4th Nov., 1893
PROVISIONAL SPECIFICATION
Improved Pliers or Nippers for Cutting Purposes.
I, WILLIAM KIMBERLEY of Highgate Tool Works Emily Street Birmingham,
Tool Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention refers to the kind of nippers used chiefly for cutting wire or rod,
the cutting parts of which consist of two flat discs connected together by a centre
rivet, which have slots in their peripheries, and which are caused to revolve in
opposite directions, thereby severing anything inserted in the said slots.
In the following description I refer to the cutting parts above described as the
"head" of the tool, and this head may be circular as hitherto, or may be oval or
oblong or of any preferred configuration.
Instead of connecting the handle-parts directly to the head as is now done, I
form on each half of the head a lug or knuckle which fits into and forms part of,
an intermediate hinge joint. Each handle is connected to one of these intermediate
joints, which are so arranged as to work at a distance from each other which is
about equal to the diameter of the head, or thereabouts.
In order that the handle parts may act as levers upon the lugs or knuckles of
the head, I connect the said handle parts by means of another intermediate joint
placed halfway between them. This joint forms the fulcrum of two unequal end
levers consisting of the said handles. The effect of this.fulcrum is that on pressing
the ends of the handles together the short ends of the levers (or handles) force
the lugs on the halves of the heads apart, thereby causing a partial rotation of the
said halves in different directions and cutting off anything laid in the grooves
or slots.
The principle of my invention is that the handles are connected near the, head
by a hinge joint forming a fulcrum, and are then continued a short distance beyond
the fulcrum, and hinged to lugs attached to the head of the tool or caused to bear
against the said lugs in any suitable way. These joints may be formed in various
ways without departing from the principle of the invention.
A stop pin can be inserted between the handles to regulate their travel, and a
coiled or other spring can also be inserted to throw the handles out ready for the
next cutting operation.
A cutting or punching tool such as a hollow punch, may be placed between the
handles if preferred, and as near the fulcrum as possible consistently with
convenience in use.
Dated this 21st day of March 1893.
S. S. BROMHEAD,
97, Newgate Street, E.C., Patent Agent.
COMPLETE SPECIFICATION.
Improved Pliers or Nippers for Cutting Purposes.
I, WILLIAM KIMBERLEY of Highgate Tool Works, Emily Street, Birmingham
Tool 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 is designed to increase the leverage of certain kinds of hand tools,

page_text: more especially those used for severing metal wire, or rod, or for cutting sheet
metal, but is applicable also to tools for many similar purposes.
These tools usually have cutting parts formed of two discs, blades, or jaws,
connected together by a centre pin or rivet, so as to form what is known as the
"head" of the tool. These jaws either advance to or recede from each other, or
rotate past each other, and in the latter case have slots in their peripheries, and
when rotating, sever anything inserted in the said slots.
In the following description I refer to the cutting parts as the "head" of the
tool, and this head may be circular or may be oval or oblong or of any preferred
configuration.
I will now describe the invention with reference to the accompanying drawings
in which
Fig. 1 shows a front elevation of a wire nipper constructed on my system, the
"head" being detached from the handle parts which are also separated.
Fig. 2 shows a side view of the same.
Fig. 3 shows an elevation of a snips constructed in a similar way.
Fig. 4 shows a button-hole pliers made on same principle.
a, and a', are the two halves of the head, which are pivotally connected at b, and
are also respectively pivotted at c, c', to the handles d, d'.
These handles are pivotted together at e. f, is a stop pin, which may be formed
on one of the handles, d, d', or may be made half on each. g, g', are tongues at
the end of the handles, engaging with similar tongues or knuckles attached to the
head. h, is a coiled spring to open the handles ready for the next cut.
It will be seen that instead of connecting the handle-parts directly to the head
as is now done, I form on each half or jaw of the head a tongue or knuckle which
fits into, and forms part of, an intermediate hinge joint. Each handle is connected
to one of these intermediate joints, which are so arranged as to work at a distance
from each other, which is about equal to the diameter of the head, or thereabouts.
In order that the handle parts d, d', may act as levers upon the tongues or
knuckles c, c', of the head, I connect the said handle parts by means of another
intermediate joint e, placed halfway between them.
This joint forms the fulcrum of the two unequal end levers consisting of the said
handles. The effect of this fulcrum is that on pressing the ends of the handles
together the short ends g, g', of the lever handles force the tongues or knuckles c, c',
on the halves of the head apart, thereby causing in the tool, shewn in Fig. 1, a
partial rotation of the said halves in different directions, and cutting off anything
laid in the grooves or slots, or in the case of Figs. 3, and 4 bringing the jaws
together and severing anything placed between them.
The principle of my invention is that the handles are connected near the head
by the hinge-joint e, forming a fulcrum, and are then continued a short distance
beyond the fulcrum to g, g', and hinged to tongues or knuckles c, c', attached to the
jaws which together form the head of the tool or caused to bear against the said
tongues in any suitable way. These joints may be formed in various ways without
departing from the principle of the invention.
The stop pin f, can be inserted between the handles to regulate their travel, and
a coiled or other spring as shewn by h, in Fig. 4 can also be inserted to throw the
haudles out ready for the next cutting operation. Any description of hollow or
solid cutting or punching tool may be used instead of the cutter shewn in Fig. 4,
and in some cases a cutter or punch may be placed between the handles if preferred,
and as near the fulcrum as possible consistently with convenience in use.
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 :-
:-
In a hand tool for nipping cutting or punching metal or other hard substances,

page_text: the addition of the hinge joints at c, c', and hinged fulcrum e, with or without the
spring h, and stop f, as herein described and set forth.
Dated this 29th day of September 1893.
S. S. BROMHEAD,
97; Newgate Street, London, E.C., Agent for Applicant.