Art or Method of, Punching Blanks for Animal Shoe Nails.
Year: 1886

page_text: от вытрь тот, аци 10 tue Art or
Method of, Punching Blanks for Animal Shoe Nails.
I, GEORGE MACAULAY CRUIKSHANK of 135 Buchanan Street Glasgow in the
County of Lanark, Consulting Engineer, Fellow of the Institute of Patent Agents,
do hereby declare the nature of this invention, a communication to me from
abroad by Johan Oliver Johansson Kollín and August Bernhard Johansson Kollin of
Rädanefors, Frendefors, Sweden, Engineers to be as follows:-
This invention has for its object to save waste, of metal in punching out blanks
to be subsequently manufactured into animal shoe nails.
Hitherto to save waste in punching out such blanka from rolled, flanged or
ribbed plates or strips by means of two punches carried in the same punch stock
or slide a practice has been pursued of punching the blanks of different widths or
breadths those cut from one edge of the plate or strip being wider at one part than
the same part of those cut from the other edge of the plate, the wider blanks
being used for the manufacture of a larger size of nail than the narrower ones.
Under this invention the nail plate or strip is rolled thicker at one side or edge
than at the other and the blanks cut from both sides of the plate whilst having all
the same or practically the same or equal width or breadth have different thick-
nesses at and near the head that is to say that blanks cut from the side of the
plate having the thicker edge and which are produced by the following punch are
thicker at the head than those cut from the other side of the plate. The punching
is effected so that the said thicker headed blanks shall also be longer than the
thinner headed blanks cut from the other edge by the leading punch and by this
mode of manufacture a greater saving of waste is effected whilst at the same time
the thicker headed and longer blank is applicable for the manufacture of a larger
sized nail than the thinner headed one.
In taking out the shorter blank the punch acts over the entire surface of the
blank, but in taking out the longer and thicker headed blank the punch acts either

page_text: only at and near the edge of the plate representing the head of the blank or it
may act both at the head and point of the blank in which latter case a part is cut
off from the point, the punch being constructed accordingly.
The machinery employed in feeding the plate to, and in actuating the punches
may be similar to apparatus heretofore used for the like purposes.
Method of, Punching Blanks for Animal Shoe Nails.
I, GEORGE MACAULAY CRUIKSHANK of 62, Saint Vincent Street Glasgow in the
county of Lanark, Consulting Engineer, Fellow of the Institute of Patent Agents,
do hereby declare the nature of this invention and in what manner the same is
to be performed as communicated to me to be particularly described and ascer-
tained in and by the following statement:-
.. This invention has for its object to save waste of metal in punching out blanks
to be subsequently manufactured into animal shoe nails.
Hitherto to save waste in punching out such blanks from rolled, flanged or ribbed
plates or strips by means of two punches carried in the same punch stock or slide
a practice has been pursued of punching the blanks of different widths or breadths
those cut from one edge of the plate or strip being wider at one part than the
same part of those cut from the other edge of the plate, the wider blanks being
used for the manufacture of a larger size of nail than the narrower ones.
Under this invention the nail plate or strip is as seen at fig. 1 of the drawings
hereunto annexed which is a transverse section of the plate rolled thicker at one
side or edge a than at the other side 6 and the blanks cut from both sides of the
plate whilst having all the same or practically the same or equal width or breadth
have different thicknesses at and near the head, that is to say, that the blanks c, cut
from the side of the plate having the thicker edge a, and which are produced by
the following punch are thicker at the head c than the blanks d, cut from the
other side of the plate. The punching is effected so that the said thicker headed
blanks c, as indicated at figure 2, shall also be longer than the thinner headed
blanks d cut from the other edge by the leading punch and by this mode of manu-
facture a greater saving of waste is effected whilst at the same time the thicker

page_text: headed and longer blank c, is applicable for the manufacture of a larger sized nail
than the thinner headed one.
In taking out the shorter blank d, the punch acts over. the entire surface of the
blank, but in taking out the longer and thicker headed blank c the punch acts
either only at and near the edge a of the plate representing the head of the blank
or it may act both at the head and point of the blank in which latter case a part e
is cut off from the point, the punch being constructed accordingly. On figure 2,
the blackened parts represent the waste with the latter mode of punching.
The machinery employed in feeding the plate to, and in actuating the punches
may be similar to apparatus heretofore used for the like purposes.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me, I declare that what I claim is
1. For the manufacture of blanks for animal shoe nails a plate or strip having
one edge a, rolled thicker than the other edge b, substantially as and for the purpose
set forth.
•
2. In the art of punching blanks for animal shoe nails the improvement con-
sisting in taking from the same plate as described blanks suitable for the
manufacture of different sized nails the blank for the larger nail being thicker at
the head and longer than that for the smaller nail substantially as set forth.
Dated this First day of Novemba 1000