Improvements in the Manufacture of Nails.
Year: 1894

page_text: Date of Application, 5th June, 1894-Accepted, 7th July, 1894
Improvements in the Manufacture of Nails.
A communication from abroad by HENRY ALFRED LEPREUX, of Boulogne-sur-
Mer, Pas de Calais, France, Metal Pen Maker.
I, WILLIAM LLOYD WISE of No. 46 Lincoln's Inn Fields, in the County of
London, Consulting Engineer and Chartered Patent Agent 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 the manufacture of figured nails.
According thereto a steel pin or shank, which may or may not be provided with
a circumferential groove at one part of its length, is fixed to a perforated disc or
washer of suitable metal such as sheet iron, sheet steel, brass, copper, zinc, German
silver or aluminium, the outer edge of which has been already fluted or milled and
the connection of the said pin or shank and the disc or washer being effected by
rivetting in such a way as to leave the pin or shank with a flat or rounded head
after which the other end of the pin or shank is, if necessary, pointed or sharpened
and finally a concavo-convex or dome shape is imparted to the disc, the whole of
the operations being effected by machinery so as to allow of a rapid, economical
and durable manufacture.
Fig. 1 shews a sheet of steel or other metal cut or stamped in the form of a disc
and designed to form the head of the nail. In the centre of the disc a hole A is then
pierced, which may be rectangular (Fig. 2), round (Fig. 3), triangular, or of any
other suitable shape. The edge B of the disc is milled or fluted, as shown in
Fig. 4, this being effected in any known or convenient manner.
To the disc A so pierced and milied is now fitted a pin or shank which may be
of various forms examples of which are shewn in Figs. 5, 6 and 7 and which to
increase the strength of the connection with the disc may be provided with a small
circumferential groove D having approximately the same thickness as the disc as
shown in Figs. 8, 9 and 10.
The pin or shank C, whether provided or not with a circumferential groove, is
inserted in the hole in the discs, in such a manner as to project to a small extent
from the top of the disc as shewn in Figs. 11, 12 and 13.
The two parts of the nail so prepared and fitted together are then placed under
a suitable mechanical rivetting device, and subjected to pressure which has the
effect of upsetting the projecting end portion of the pin or shank and causing the
same to become firmly connected to the disc in such a manner as to practically form
a single piece. It will of course be understood that the pin or shank C is protected
from becoming flattened during the rivetting operation.
Figs. 14 and 15 shew nails at this stage of their manufacture that in Fig. 14
having had the projecting head of the pin or shank C rounded during rivetting and
that shewn in Fig. 15 having the head of its pin or shank flattened so as to be flush
with the upper surface of the disc A.
During the said rivetting operation the upper surface of the disc a is impressed
with suitable designs or figuring examples of which are shewn in plan in Figs. 16
and 17.
After the foregoing operations have been effected the point of the pin or shank C
is sharpened if necessary. Finally the head of the nail is made convex or dome
shaped as shown in Figs. 18 and 19, this being effected by any known or suitable
annaratus.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
.
The manufacture of figured nails in the improved manner hereinabove described
that is to say by first cutting or otherwise forming a perforated disc of suitable
metal, and milling the edge or edges thereof, fitting into said perforated disc a pin
or shank, uniting the two parts so fitted together by subjecting them to pressure in
a rivetting machine which also impresses a figured design on the upper surface of
the disc, and finally imparting a convex or dome shape to the disc forming the head
of the nail, as set forth.
Dated this 5th day of June-1894.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.