IMPROVEMENTS IN MACHINES FOR THE MANUFACTURE OF HORSE-SHOE-NAILS
Year: 1885

page_text: I JOHANN HEINRICH EHLERS Engineer of Bahrenfeld in the Kingdom of Prussia.
do hereby declare the nature of my invention for IMPROVEMENTS IN MACHINES FOR
THE MANUFACTURE OF HORSE-SHOE-NAILS and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following.
statement:
This invention has for object certain improvements in finishing machines for
horse shoe nail blanks. The machine finishes the points as well as the heads of
the blanks already punched out of profi'ated rolled iron or steel, that is sheet iron
or steel (of required section) and after being rolled out at the point end. These
blanks when punched out correspond in section to Fig 7 of the drawings after
being rolled out they correspond to the profilations shown in dotted lines in
Figs 7 and 8. The machine in the one part punches or cuts these blanks into a
shape according to the full lines of Fig 8 to form the point, and afterwards it
presses the head into its exact shape as shown by Figs 9 and 10 of the drawings.
The rolled out blanks are fed from table a of the machine, into a channel b
placed and terminating above a die e furnished with an opening m corresponding
with the shape of the pointed nail. Underneath the channel b is a table d (which
receives the blanks from said channel b one after the other) and. the punch or
stamp of section to fit opening m (Fig 6) and fastened to support D from which
it receives a horizontal to and fro motion, punches one blank after the other into
and through die e, m, by which operation the nails will be pointed. From die e
the blanks are at r passed into another channel a from which they are guided to
the device for finishing the head in the following manner.
The said pointed blanks o drop onto a plate s supported by a spring or other
suitable means (shown on larger scale in Fig 5 of the drawings) and are brought
between jaws i, i' and 2 one after the other by a stamp 9 placed below stamp f
and fastened to the support D the said jaws i, i' and are forced together to bold
a blank fast between them whilst the pressure stamp p (Figs 2 and 3) finishes the
head of the nail. The jaws i and 2 are attached to the head of a rocking lever K,
and jaw (shown in Fig 4 in dotted lines) is a fixture to the machine frame and
the face of stamp 9 forms the fourth inner edge of a mould that when closed,
keeps the nail fast on all four sides. As soon as this mould is firmly closed

page_text: stamp exerts pressure on the outer end of the head of the blank and forces the
latter firmly into the mould the jaws of which are profilated so as to form the
heads of the shape required. Lever K then returns and leaves the finished nail
free so that by a further forward movement of stamp p at x it is thrown out of the
machine Stamp g now returns and a new blank drops out of channel n onto
plate &, whereupon the forward movement of g reoccurs as before described. The
jaws, and as well as stamp g do not require to be the full length of the
blanks as part of their length will be sufficient to keep the blank fast enough to
give the necessary resistance to the pressure stamp p;-l is a guiding plate to
prevent the points of the nail blanks from rising while these are delivered into the
pressure jaws by stamp y.
The motion from main shaft w of the machine is transmitted to the different
parts by cams attached to shaft w. Cam works a rocking lever R in connection
with support D as will be understood from the drawing.
22
Cam moves rocking-lever K carrying the jaws, y is a spring that keeps
levers R and K in contact with the circumference of the corresponding cams and
that secures the return motions. t are friction-rollers against which the faces of
the cams work.
Pressure stamp p is driven from a rocking lever R' by a cam 2 attached to the
free end of shaft w Spring y¹ secures the return motion of lever R' whilst spring y³
keeps stamp p in contact with a set screw of the upper free end of the said working
lever R¹.
•
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The combination of stamps f and g, die e, jaws i, 1, 2, and pressure-stamp p
for the object of pointing horse shoe nail blanks as well as finishing the heads of
such blanks, constructed and operating as and for the purpose herein set forth.
ليوم
.
1
300K
WALTER A. BARLOW,
6, St. Paul's Churchyard, E.C.,
Agent for Johann Heinrich Ehlers.