Manufacture of Boots and Shoes.
Year: 1888

page_text: Manufacture of Boots and Shoes.
I, JOHN HENRY RADEY, of Philadelphia, Pennsylvania, United States of America,
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 relates to improvements in staples and it consists in forming the same
with a crown of greater thickness than the legs, the latter having round inner and flat
outer faces, and the faces being doubly bevelled in the direction of their length,
whereby, when they are clinched, their ends curve around and take increased hold on
the leather, so that the staple provides a strong and reliable fastening and is prevented
from being drawn out in either direction.
In the accompanying drawing
Figure 1 is a side elevation of a staple embodying my invention.
Figure 2 is an end view thereof.
Figure 3 is a section in line x, x Figure 1.
Figure 4 is a section of the staple clinched.
Figure 5 is a side elevation of a modification.
Similar letters of reference indicate corresponding parts in the several Figures.
Referring to the drawings, A represents a wire staple, which is formed of the
legs a, a and the head or crown b. The legs are bevelled on their sides from c to c¹
and from e! to the extreme points d, the bevels d, el being at a different angle from
the bevels c¹, c. When the staple is driven into position, a suitable bed or anvil being
provided for causing the deflection of the ends of the legs, said legs turn laterally
and upwardly and curve around, forming well developed eyes which enter and re-enter
he leather or other material to be stapled the effect of which is to doubly clinch the
egs in position, whereby, unless the legs and head break, the staple cannot be with-
drawn by strain or power on the same in either direction.
In practice the staple legs are produced by drawing and upsetting the metal of which
he staple is formed, thus vastly increasing the strength thereof.

page_text: By the operation of upsetting a greater amount of metal is left in the crown b
where the blows are imparted for driving the staple into the leather or other material
and the outer faces of the staple are made flat, the half-round or approximately half-
round form of the inner faces of the legs being preserved. By this form of
construction the legs may be driven through the leather with less difficulty than if
they were entirely round, while the inner faces, owing to their curvature, have an
increased or at least a sufficient quantity of metal, so that as the legs bend during the
clinching process the crimping of the curve of the clinched parts increases the strength
of said parts it being evident that the strain on the staple in opposite directions is
transmitted to the lead or crown and to the clinched ends of the legs, the said crown
being of increased thickness and the ends of the legs being rounded on their inner
faces, as has been stated. The round faces of the sides also prevent lateral bending of
the legs and thus a strong and reliable staple is presented.
I am aware that it is not new to form a staple of wire in which the original shape
of the wire is preserved and some of the metal at the ends of the legs is cut off in
order to point the legs, but such a staple clinches irregularly and weak, and does not
possess the advantages set forth in my case.
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 :-
A wire staple having a crown of greater thickness than the legs, the latter being
formed flat on their outer faces and round on their inner faces, the faces being of a
double incline or bevel in the direction of their length, substantially as described.
Dated this 30th day of November 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.