An Improved Die for Making Eye-bars.
Year: 1888

page_text: Date of Application, 1st Sept., 1888
Specification Accepted, 5th Oct., 1888
An Improved Die for Making Eye-bars.
1, JOHN FLAVIL KINGSLEY, of Athens, in the County of Bradford and State of
Pennsylvania, United States of America, foreman, 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 dies for the manufacture of eye-bars, and it consists in
forming the upper die-section flat, with a small groove in the centre running longi-
tudinally, and in other peculiarities of construction, as well as the combinations, the
arrangem nt, and adaptation of parts, all as more fully hereinafter described, shown
in the drawings, and then particularly pointed out in the claims.
The present invention is clearly illustrated in the accompanying drawings, which
form a part of this specification, and in which-
Figure 1 is a perspective view of the upper dic-section and its attachments; Fig. 2
a similar view of the lower die-section, Fig. 3 is a longitudinal central section.on the
line of Fig. 4. Fig. 4 is a transverse section taken on the line y y of Fig. 3.
Fig. 5 is a perspective view of 50 much of an eye-bar as is operated upon by my
improved die; and Fig. 6 is a similar view of a like portion of an eye-bar, the same
being represented as finished and ready to be perforated. Fig. 7 is a transverse
section, taken on the line 2 of Fig. 1, with the piece I in position.
Referring to the details of the drawings by letter, A designates the base or bed of
the machine, upon which is supported the lower die-section, B, which is provided with
a central longitudinal rib or elevation, a, or in other words, the upper face is inclined
At one end this lower section is provided
from the centre in opposite directions.

page_text: with a recess, b, and is provided at said recessed end with the detachable plates, C,
the edges of said plates abutting against the flanges con said section, as shown in
Fig. 2. The upper and movable die-section, D, is substantially flat on its lower face,
and is provided with a central longitudinal groove or channel, d. The end of the
upper die, D, is cut away to form recesses e, to receive the bifurcated end of the
rammer E.
Above the upper die-section, D, is a frame, F, provided with flanges g, h, which fit
correspondingly-formed channels or grooves, i, j, in the edges of the upper die-
section, D, and the platen G.
To the sides of the frame F, are journaled the anti-friction rollers HI, upon which
bear the platen and upper die-section, said rollers having an enlarged bearing, k,
midway of the ends, which fit in the grooves l, m, in the platen and upper die-section
respectively.
The rammer is formed with a longitudinal depression, or is triangular in cross
section upon its under face, to fit the shape of the lower die-section, and the bifurcated
end of the rammer is of such shape as to form the end of the upset portion of the bar
when acted upon, and in operation this rammer is connected to the piston-rod of the
machine.
The pieces, C, are designed to be made to correspond to the thickness and shape of
the head or neck, and are adapted to be interchangeable, according to the kind of
bar desired. The end of the upper die-section is formed with the depression, n, as will
be seen in Fig. 1, to form the ridge, o, as seen in Fig. 5.
I, is a removable piece made to conform to the upper and lower die-sections and the
ranmer and the shape of that portion of the head, and is designed to be used when
the head desired is sinaller than the concave end of the rammer. Pieces I, may be
made of varying sizes and shapes to correspond to the shapes of the heads desired.
The projection, p, on the piece, I, shown is to fit the depression, n, in the upper die-
section.
The operation is as follows: The end of the bar (as it comes from the rollers with
parallel sides and edges) is heated and laid upon the lower die-section between the
plates C. The upper die-section is then lowered and forced upon the heated bar, which
is placed centrally on the bottom die-section and against the rammer and piece I, so
as to produce a thinning of the bar in the centre of its width and to a point at about
the centre of the upset head, except at the depression n, where the bar would be simply
bent to a point corresponding with the centre of the head. Power is then applied to
the rammer, and the top dic-section is forced out by the ram in the process of upsetting,
At the same time the thinning of the bar in the centre is done, a portion of the metal
is forced into the groove, d, in the top die-section, and as the metal slides along with
it, it has the tendency of holding the heated portion straight during the process of
upsetting. After the upsetting is done, the head is flattened out to the thickness
required in any well known way.
Having now particularly described and ascertained the 'nature of my said Inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is
1st. The combination, with a lower die-section having a recess at one end and
central longitudinal rib, of the flat upper die-section having central longitudinal
groove, substantially as described.
2nd. The combination, with the upper die-section, flat upon its under face and
provided with a central longitudinal groove, of the lower die-section having a central
longitudinal rib, and recessed at one end and the interchangeable plates at said
recessed end, substantially as set forth.
3rd. The combination, with the lower die-section having central longitudinal rib
and a recess at one end, of the upper die section, flat upon its under face and formed
with central longitudinal groove and depression, n, and the rammer, substantially as
described.

page_text: 4th. The combination, with the lower die-section having at one end a recess and
the plates at said recessed end, of the upper die-section, the rammer, and the
removable piece, all substantially as described.
5th. The combination, with the lower die-section having recess at one end and the
plates at said recessed end, of the upper die-section formed with with depression, n,
the rammer, and the removable piece, I, having the projection, p, adapted to fit said
depression, substantially as described.
Dated this 1st day of September 1888.
Agents
HORN & SON,
on behalf of Applicant.