Year: 1896

page_text: We, JOHANN HERMANN NOBIS and ANTON THISSEN of Aix-la-Chapelle, in the
Empire of Germany, Manufacturers, do hereby declare the nature of this invention
to be as follows
This invention relates to improvements in duplex safety pins and has for its
object to provide a cheaper and more reliable pin than such pins as hitherto
manufactured.
According to our invention we form the shield of the pin and the tongue of
the same in one piece and we so arrange the lateral slits or openings for the
passage of the point of the pin that the said point cannot of itself leave the
shield.
This we effect by forming the said slits or openings near one side of the shield
that is to say near the side by which it is attached to the pin.
Dated this 31st day of October 1896.
G. F. REDFERN & Co.
4, South Street, Finsbury, London, Agents for the Applicants.
We, JOHANN HERMANN NOBIS and ANTON THISSEN of Aix-la-Chapelle, in the
Empire of Germany, Manufacturers, 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 relates to improvements in duplex safety pins and has for its
object to provide a cheaper and more reliable pin than such pins as hitherto
manufactured.
According to our invention we form the shield of the pin and the tongue of
the same in one piece and we so arrange the lateral slits or openings for the
passage of the point of the pin that the said point cannot of itself leave the
shield.
To enable our invention to be fully understood we will describe it by
reference to the accompanying drawing, in which
Figure 1 is a side elevation on an exaggerated scale of a duplex safety pin
anade according to our invention:
Figure 2 is a section on the line 2-2 Figure 7:

page_text: Figure 3 is a side elevation of a slightly modified construction of our pin:
Figure 4 is a section on the line 44 Figure 3:
Figure 5 is a view of a detail.
a is the wire bent in the usual manner to form the pin, b is the shield secured to
the said wire and c the tongue thereof, the said shield and tongue being stamped
from a single sheet-metal blank similar to that shown in Figure 5 which illustrates
the blank from which the shield shewn in Figures 3 and 4 is stamped.
d, d are the lateral slits or openings made in the shield b for the passage of
the point of the pin a. In the arrangement shewn in Figures 1 and 2 the said
lateral slits d, d are made nearer to the side of the shield at which it is secured
to the pin a than to the other side thereof for the purpose of causing the point
of the pin a to be retained in the shield more securely than would be the case
if the slits were nearer the point of the pin when held in the shield b.
It will be obvious that our improved duplex safety pin besides being cheaper
to manufacture is also more reliable than such pins of ordinary construction.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
1. A duplex safety pin having a shield and tongue made from a single sheet
metal blank, substantially as hereinbefore described and illustrated in the
drawing.
2. The manufacture and use of the improved duplex safety pins hereinbefore
described and illustrated respectively in Figures 1 and 2 and 3, 4 and 5 of the
accompanying drawing.
Dated the 20th do of 100
G. F. REDFERN & Co.
4, South Street, Finsbury, London, Agents for the Applicants.