Improvements in Drawing Pins, and in Apparatus for Detaching them from Drawing Boards.
Year: 1894

page_text: Date of Application, 15th Jan., 1894
Complete Specification Left, 27th June, 1894-Accepted, 29th Sept., 1894.
PROVISIONAL SPECIFICATION.
Improvements in Drawing Pins, and in Apparatus for Detaching
them from Drawing Boards.
I LEWIS RICHARDS of 12 Park Villas Llanishen in the County of Glamorgan
Engineer and Works Manager, do hereby declare the nature of this invention
to be as follows:-
My invention is for detaching drawing pins from drawing boards and consists in
having a hole or holes (two by preference) made through the plate or cover of the
pin the hole or holes may be round, oval or any other suitable form and are to be
larger on the same face as the pin than on the back or other face. A piece of
metal or other material of suitable shape for holding between the fingers is to have
a nipple or nipples more or less of the same form as the hole or holes in the plate
or cover of the pin the bigger end of the nipple or nipples is to be furthest from
the piece of metal or other material to which it is attached and is to be smaller
than the small end of the hole or holes in the plate or cover of the pin so as to
pass freely through. With two holes in the plate or cover of the pin it is to be
detached by inserting the nipples into the holes and pressing them against opposite
sides slightly turning the pin and the big ends of the nipples being in contact with
the enlarged portions of the holes the pin is to be pulled out.
Dated this 13th day of January 1894.
COMPLETE SPECIFICATION.
Improvements in Drawing Pins, and in Apparatus for Detaching
them from Drawing Boards.
I LEWIS RICHARDS of 12 Park Villas Llanishen in the County of Glamorgan
Engineer and Works Manager, 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 invention of improvements in drawing pins and in apparatus for detaching
them from drawing boards consists in having a hole or holes (two by preference)
made through the plate or cover of the drawing pin. The hole or holes may be
round oval or of any other suitable form and are to be countersunk or made larger
on the same face as the pin than on the back or other face. Or in having suitable
notches made in the sides of the plate or cover of the drawing pin the notches also
to be enlarged or countersunk on the same face as the pin as herein before described
with respect to the hole or holes made in the plate or cover of the drawing pin.
Also of a nipple or nipples made in one with or attached to a piece of metal or
other suitable material the nipple or nipples to be enlarged or to have projections
on their outer ends which are to pass through the small end of the hole or holes or
the narrow part of the notches and enter into the countersunk spaces on the other
face of the plate or cover of the drawing pin.
With two holes in the plate or cover of the drawing pin or with notches in its
sides, the nipples are to be inserted into the holes or into the notches and the
projections on the outer ends of the nipples pressed into the countersunk spaces
and the pin turned round and pulled out of the drawing board.
Or the nipples may be made in one with or attached to a piece of metal or other

page_text: suitable material, the piece being formed so as to have flexibility and spring, the
pipples to be closed together or opened apart when being inserted into the holes
in the plate or cover of the drawing pin and afterwards to spring back against the
sides of the holes so as to bring the projections on the outer ends of the nipples
into the countersunk spaces and the pin turned round and be pulled out of the
drawing board. Or with the notches as herein before referred to the nipples may
also be opened apart so as to enter into the notches from outside of the rim of the
plate or cover of the drawing pin and spring back into the notches with the
projections on the ends of the nipples in the countersunk spaces and the pin turned
round and be pulled out of the drawing board.
In order that my invention may be fully understood, I will proceed to describe
it more particularly by the aid of the accompanying drawings in which are
represented some of the forms of the apparatus and modifications of drawing pins.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan and elevation of drawing pin with two holes in the plate or cover
of the pin.
Fig. 2 is a plan and elevation of drawing pin with notches in the sides of the
plate or cover of the drawing pin.
Fig. 3 elevations shewing two nipples in one with a piece of metal or other
suitable material;
Fig. 4 elevations shewing a single nipple in one with a piece of metal or other
suitable material.
Figures 5 and 6 are elevations shewing nipples in one with a flexible piece of
metal or other suitable material.
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. One or more holes made through the plate or cover of drawing pins, the hole
or holes being round, oval or of any other suitable form, and being countersunk or
made larger on the same face as the pin than on the back or other face, as and for
the purpose substantially as described.
2. Notches made in the sides of the plate or cover of drawing pins the notches
being enlarged or countersunk on the same face as the pin, as and for the purpose
substantially as described.
3. A nipple or nipples made in one with or attached to a piece of metal or other
suitable material the outer end of the nipple or nipples being enlarged or having
projections to pass through the small part of the hole or holes, or through the
narrow part of the notches in the plate or cover of drawing pins, and to enter
into the countersunk spaces in the hole, or holes, or in the notches on the other
face as and for the purpose substantially as described.
4. Nipples made in one with or attached to a piece of metal or other suitable
material, the piece being formed so as to have flexibility and spring, the nipples
having projections on their outer ends, and being closed together or opened apart
when being inserted into holes made in the plates or covers of drawing pins as
hereinbefore described, and springing back against the sides of the said holes
bringing the projections on the ends of the nipples into the countersunk spaces in
the holes or the said nipples also being opened apart so as to enter into notches
made in the sides of the plate or cover of drawing pins (as hereinbefore described)
from outside their rims and springing back into the notches with the projections on
the ends of the nipples in the countersunk spaces in the notches, as and for the
purpose substantially as described.
Dated this 25th dow of T... 1904