Improvements in and connected with Tools for Punching and Cutting.
Year: 1891

page_text: Date of Application, 3rd Jan., 1891
Complete Specification Left, 3rd Oct., 1891-Accepted, 7th Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in and connected with Tools for Punching and
Cutting.
I, JOSEPH TAYLOR MARTIN, of Grove Road, Wallasey, in the County of
Chester, Merchant, do hereby declare the nature of this invention to be as
follows:-
According to this invention I employ the screw or other pressing power of a vice
to actuate a punching or cutting tool which is adapted to fit into, and be worked
by the vice.
A punching or cutting tool, under my invention, may consist of two cheeks or
plates constructed and adapted to fit and rest between the jaws of a vice, the said
plates being kept apart by suitable blocks or distance pieces to allow for the entry
of the article to be punched or cut. The plates of the tool are so constructed as
to be detachable from each other for the purpose of inserting, fitting or changing,
the punching or cutting parts. One of the plates, preferably the inner plate, is
provided with the die or bolster, and the other or outer plate is provided with the
punch. The punch projects through the plate so that when the jaws of the vice
are brought together the punch is pressed into the die. Other cutters or like parts
such as shears may be fitted to the plates and be worked in a like manner, namely,
by the movement of the jaws of the vice.
The punch is provided with a spring or other means for regaining its normal
position, and the tool has flanges which rest on the vice jaws and support it in the
vice. It may also be provided with clamp for fixing it to the vice, and with a
gauge för gauging the position of the work.
By the use of a tool according to my invention an ordinary vice can be used for
punching or cutting metal, or for like purposes.
Dated this Second day of Januarr 1901
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Applicant's Patent Agents.
COMPLETE SPECIFICATION.
Improvements in and connected with Tools for Punching and
Cutting.
I, JOSEPH TAYLOR MARTIN, of Grove Road, Wallasey, in the County of
Chester, Merchant, 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 :-
According to this invention I employ the screw or other pressing power of a
vice to actuate a punching or cutting tool which is adapted to fit into, and be
worked by the vice, and is light and portable.
A punching or cutting tool, under my invention, may consist of two cheeks or
plates constructed and adapted to fit and rest between the jaws of a vice, the said
plates being kept apart by suitable blocks or distance pieces to allow for the entry
of the article to be punched or cut. The tool may be made in one piece or of
plates so constructed as to be detachable from each other for the purpose of
inserting, fitting or changing, the punching or cutting parts. One of the plates,
preferably the inner plate, is provided with the die or bolster, and the other or
outer plate is provided with the punch. The punch projects through the plate so
that when the jaws of the vice are brought together, the punch is pressed into the

page_text: die. Other cutters or like parts such as chisels or shears may be fitted to the
plates and be worked in a like manner, namely, by the movement of the jaws of
the vice.
The punch is provided with a spring or other means for regaining its normal
position, and the tool has flanges which rest on the vice jaws and support it in the
vice. It may also be provided with a clamp for fixing it to the vice, and with
gauges for gauging the position of the work.
By the use of a tool according to my invention an ordinary vice can be used for
punching or cutting metal, or for like purposes
Having thus generally described the object, nature, and effects of the invention,
I will now proceed to describe it with reference to the sheets of accompanying
drawings. The example of apparatus or tool which I have illustrated is that
suitable for use with an ordinary screw vice which it is adapted to fit. In the
various figures the same parts are designated by the same letters and they correspond
with those used in the following explanation of the example.
Figure is a side sectional elevation of a tool according to my invention
provided with a circular punch and shewn placed in a bench vice ready for
punching.
Figure 2 is a plan of the tool shewn in Figure 1.
Figure 3 shews the tool illustrated at Figure 1, and provided with a square
punch and gauging and clamping devices.
Figure 4 is an end view taken at X. X. Figure 3, shewing the die, the gauging
devices, and clamp.
Figures 5, 6, 7, 8 and 9 shew details of the punching tools.
With reference to the drawings, A. designates a screw bench-vice.
B is the
fixed jaw; and B¹ the moving jaw thereof, and C is the screw. The punching tool
under my invention, as shewn, consists of two cheeks of plates a a¹ connected by a
web a² and having top flanges a³, the said plates a a' being adapted to fit between
the jaws B. B' of the vice and to be supported therein by their flanges a³. Between
the plates a a¹ there is a web b having cam shaped flanges . d designates the
punch which is carried in guide holes in the plate a¹, and the web b. e is a
spring for withdrawing the punch from the plate which has been punched, and e¹ is
a lever handle also for withdrawing the punch d as hereinafter described.
h designates the die which is set or screwed into the plate a. ¹ is the delivery
path of the die. g are studs or equivalent devices on the web a² by which the tool
can be secured to the vice by a binding cord or wire, or by clamps such as f.
i (Figures 3 and 4) is an adjustable gauge having a pin by which the distance
apart of the holes in the metal being punched, is gauged. k is an adjustable
gauge plate by which the vertical position of the holes is fixed.
I is a movable plate on the plate a' for adapting the tool to be used for round or
square punches.
In operation, the plate or part to be punched is inserted between the die h
and the cutting part of the punch d. The vice screw C is then turned so that
the jaw B of the vice presses against the back end of the punch d and thus
drives it through the part to be punched, the punched out piece falling away
through the path of the die h. After punching, the jaw B₁ is again screwed
out. In punching, the punch is apt in the case of thick metal to stick in the
hole punched, and to cause it to be withdrawn the lever e¹ (which in its normal
state is in a horizontal position in which it can be moved in between the flanges 6')
is raised, and being connected to the punch d, and coming against the cam
flanges bit draws the punch back and out of the hole punched. In the case
of a round punch, the lever e¹ is connected to it by providing a groove m on
each side of the punch and a slot n in the lever, the punch being held in the
slot by a pin n¹ (as shewn at Figures 6 and 7). In this case, as the lever e¹ is
raised, it turns the punch d. When a square punch is used it may be fitted to
the lever e¹ (as shewn in Figures 8 and 9). In this case the groove m is all
round, so that the punch d can be acted upon by the lever without being

page_text: turned. To keep the square punch from turning, it is flattened at d² and the
straight part of the plate is brought in the path of the punch as shewn at Figure 5.
When using a round punch the round groove l' of the plate is brought in the path
of the punch d.
I would have it understood that the improved tool according to my invention
and as above described can be used for slotting as well as punching, and that
different forms of punching or cutting parts can be applied and be worked in a like
manner, namely, by the movement of the jaws of the vice.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The new or improved tool substantially as herein described, or any mere
modification thereof, adapted to be held and worked by a vice and to serve as a
punching, slotting, or cutting machine.
2. A tool for punching, slotting or cutting purposes, comprising cheeks or parts
adapted to be held by the jaws of a vice, and a punch and die, or cutting tool
adapted to be worked by the movement of the jaws of the vice; as set forth.
3. The tool for punching, slotting or cutting purposes, constructed and operating
as set forth, and as shewn in the drawings.
Dated this 2nd day of October 1891
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.