Improvements in the Manufacture of Nails.
Year: 1895

page_text: Date of Application, 21st Nov., 1895-Accepted, 21st Dec.. 1895
Improvements in the Manufacture of Nails.
We, ARTHUR EDMUND GORSE, GEORGE AUGUSTUS PROBERT, and JOHN
HENRY GREEN, all of the Tower Manufacturing Company, of Bromsgrove, in
the County of Worcester Nail Manufacturers, do hereby declare the nature of
our said invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
Our invention has for its object improvements in the manufacture of nails which
has particular reference to that class of nails, such for instance as "hob nails,'
which have very large heads in proportion to the size of the shanks or points which
are usually slender and sharp pointed. In the manufacture of such nails by
machinery considerable difficulty is experienced in obtaining a sufficient amount of
material to form the heads but by our invention this difficulty is met.
In order that our invention may be clearly understood and more easily carried
into practical effect we have appended hereunto a sheet of drawings showing how
we proceed with the said manufacture. It will be also understood that most
ordinary nail machines may be adapted to the said manufacture, at least such as
have a feed motion and an after provision for forming the heads when they have
been sheared off.
Figure 1 is such a section of such a rolled strip of metal whether, iron, steel
or other metal as we find suitable for the purpose but the section may of course
be varied according to the length of the nail required and the size of the head
desired.
Figure 2 shows the strip A on its flat with the forms of the cuts marked off in
cross lines which also illustrates the pieces which are waste by this mode of
manufacture.
Figure 3 shows the blank ready to enter the heading tools.
Figure 4. illustrates a such like finished nail as would be made by our new
manufacture.
We roll our metal whether, steel, iron, or other metal into strips such as A
Figures 1 and 2 and of any lengths convenient to the rolling mills. We then fix
in any suitable nail machine a pair of tools or cutters so notched out as to receive
between them the thick portions a' and a and the thin portion a* and the guides or
the cutters are so arranged that the strip A is cut on a diagonal line 1. 2 which is
approximately the taper of the shank of the nail when finished and thus by the
notched cutters the section as seen at Figure 1 is preserved whereas plain cutters
would more or less destroy it. After the blank for each nail is severed on the
line 1. 2. it is necessary to cut a waste piece B away on the shorter line 3. 4.
which we accomplish by moving the strip A first to the right and then to the
left which gives the necessary inclination and the feed is so set and the side action
of the strip that the plain part of the cutter severs the short cut 3. 4 which is the
thin part and the notch of the cutter for the enlargement a' does not in that cut
come into action. It will thus be seen that the scrap portions B are the part of
the width which minimizes the weight of scrap made.
It will be seen from the formation of the blank Figure 3 that we have ample
material for the head of the nail which is then without difficulty headed and turned
out by the other motion of the well known ordinary machine as seen at A¹
Figure 4 and it will be clearly understood that the size and proportions may be
varied by the rolled sections of the strips A and by the inclinations of the
lines 1. 2. and 3. 4. of the cutting tools.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
The improvements in the manufacture of nails of the kind herein described of
large heads consisting essentially of a rolled strip A with a such like enlargement
on one edge as a¹ and its thin shank a³ which are severed by the special cutting
tools and headed substantially as herein set forth and as shown upon the
accompanying drawings.
Dated this 20th day of November 1895.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicants.