Improvements in and relating to Drawing Pins and the like.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Drawing Pins and the like.
I, ALFRED PEARSE, of Flitwick, Ampthill, in the County of Bedford, Artist,
do hereby declare the nature of this invention to be as follows:-
This invention relates to drawing pins used to fasten drawing paper, cloth, or
like materials to wooden surfaces or boards and its object is to produce a pin which
will not injure the surface to which it is attached and yet form a more secure
fastening than those commonly used; again the construction of the pin is such
that it may be manufactured cheaply in large quantities..
The invention consists in stamping, pressing, or forming by analogous means
from sheet metal, pins having the following new features in combination. The
configuration or profile of the pins in plan may be of varied shapes arrow head or
heart shape being preferably employed. In the centre of the head the metal
is stamped out and turned down to form a single pin of about the depth usual in
drawing pins and on the outer edges of the head the metal is cut out of a teeth like
or serrated shape and bent over at right angles with the head and parallel with
the pin.
In pins of arrow head or heart shaped configuration the apex is also bent over
at right angles to the head and parallel with the pin to prevent the head being
pressed too close to the board and this device enables easy withdrawal. The
serrated teeth do not require to be placed entirely round the periphery, but may be
arranged at one edge only of the head the pin being preferably formed out of the
metal at the opposite edge of the head.
.
Improvements in and relating to Drawing Pins and the like.
I, ALFRED PEARSE, Artist, of Elmleigh, Elm Row, Hampstead, in the County
of Middlesex (formerly of Flitwick, Ampthill, in the County of Bedford), 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 follow-
ing statement:-
This invention relates to pins used to fasten drawing paper, cloth or like material
to boards or surfaces, and its object is to economically produce pins in quantity,
and to provide such a pin that shall not puncture the face of the paper which is
secured and yet form as secure a fastening as the ordinary pins commonly in use.

page_text: The invention consists in providing fastening pins with a serrated edge or
surface which is caused to engage and press upon the sheet of paper, cloth or like
material to be fastened down, and in the formation of the pin as hereafter
described.
My invention is illustrated in the accompanying drawings in which Figures 1
and 2 illustrate in plan and elevation respectively one form of pin made in accor-
dance with my invention.
Figures 3 and 4 similarly illustrate in plan and elevation respectively another
form in which my invention is carried into effect.
In carrying my invention into effect as illustrated in the accompanying drawings
I stamp or otherwise form a blank of sheet metal of determined form and preferably
of triangular form as illustrated in Figures 1 and 2 having a projecting pin B
provided at the apex which is bent down into a transverse position, while at the
opposite extremity, the edge is preferably serrated and bent down, so that upon
the pin thus formed being pressed into a board, the serrated edge C is pressed into
close contact upon the surface and grips and engages the paper or other material
that may be laid upon the surface of the board, while the pin may be introduced
into the board at such a place as to avoid entering into the paper or material. To
prevent the head of the pin being pressed in too close contact with the surface of
the board the edge or extremity B₁ of the head is bent over to a suitable extent
as illustrated forming a shoulder.
In carrying my invention into effect according to another modification, the pin B
is punched or stamped out of the blank of which the head is composed, and
similarly a portion of the head 13' is punched or bent down to form a shoulder or
stop to prevent the head being pressed down in too close contact with the surface
of the board. In this case the head is of circular form but has a right angled
serrated edge CC provided, by means of which the corner of a sheet of paper or
other material may be gripped.
I obviously do not limit my invention to any particular form of head, as I may
shape the head in any fashion, and stamp the pin from the blank of which the
head is composed in any position. Instead of forming the serrated edge a plain
edge may obviously be employed with similar effect.
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 T
claim is:-
1. A pin for use in fastening drawing paper, cloth or other material to boards
or surfaces having an engaging edge by means of which the paper or material is
gripped substantially as herein before described.
2. A pin for use in fastening paper cloth or other material to boards or surfaces
having an engaging edge by means of which the paper or material is gripped, and
an edge or shoulder which prevents the head being pressed in too close contact with
the surface, substantially as described.
3. A pin for use in fastening drawing paper cloth or like material to boards or
surfaces stamped from sheet metal and substantially as hereinbefore described.
4. A pin for use in fastening drawing paper cloth or other material to boards or
surfaces substantially as hereinbefore described and illustrated in Figures 3 and 4
of the drawings.
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.