and Bending Metallic Objects.
Year: 1885

page_text: and Bending Metallic Objects.
"
I PETER JENSEN of 33 Chancery Lane in the County of Middlesex, Fel.
Inst. P.A. do hereby declare the nature of said invention for "IMPROVEMENTS IN
MACHINERY FOR SIMULTANEOUSLY "UPSETTING" AND BENDING METALLIC OBJECTS
(a communication to me from abroad by Kjóbenhavn's Hesteskofabrik Copenhagen
Denmark) to be as follows:-
Machines constructed according to this invention are intended for the simul-
taneous "upsetting" or thickening, and bending of metallic objects such as bars
and are specially suitable for the manufacture of horseshoes for producing the heel
calks thereon. By this simultaneous upsetting and bending the latter is effected
with great ease and rapidity and with much less danger of the formation of cracks
and flaws or undue stretching of the metal in the bend than heretofore.
I will now describe the invention with reference to a machine specially adapted
for the manufacture of horseshoes.
The shoe bar to be bent is placed on the bedplate of the machine in such manner
that its front end comes between the ends of a fork shaped arm and against a
sliding piece which I call the hammer. The fork shaped arm is fixed to the
bedplate by two hinged bolts. The bar is held in this position by means of a
pinching appliance which can receive a slight up and down motion in guides by
means of an eccentric knuckle joint action or other suitable mechanism. The
hammer which may suitably be cross shaped that is to say having a narrower front
and back extension is guided between the two sides of the fork and under lips
formed thereon so that it may be worked backwards and forwards in the fork to
a certain extent. The hammer is normally pressed out by a strong helical spring.
The horseshoe having been placed in the aforesaid position in the machine the
fork-shaped arm is swung up around its hinged bolts for the purpose of bending
the shoe around the lower front edge of a plate fitted in the front part of the
pinching appliance. At the beginning of the bending operation there is only a
Price d7

page_text: slight compression of that part of the material which is between the plate of the
pinching appliance and the hammer because the latter yields whereby the spring is
compressed. But as soon as the hammer has thus been pressed home against the
bottom of the fork the material will during the remaining part of the bending
operation be "upset" considerably.
In order to render the machine more durable and to facilitate repairs it is
preferred to line the surfaces which come in contact with the shoe with pieces or
plates of steel or other suitable material which can be easily taken out and
replaced as required. The position of the edge around which the bending is
effected may be adjusted by wedges or other pieces.

page_text: 66
Improvements in Machinery for Simultaneously Upsetting
and Bending Metallic Objects.
I PETER JENSEN of 33 Chancery Lane in the County of Middlesex, Fel.
Inst. P.A. do hereby declare the nature of this invention (a communication to me
from abroad by Kjobenhavn's Hesteskofabrik, Copenhagen Denmark) and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement:
Machines constructed according to this invention are intended for the simul-
taneous "upsetting" or thickening, and bending of metallic objects, such as bars,
and are specially suitable for the manufacture of horse shoes for producing the heel
calks thereon. By this simultaneous upsetting and bending the latter is effected
with great ease and rapidity and with much less danger of the formation of cracks
and flaws or undue stretching of the metal in the bend than heretofore.
I will now describe the invention with reference to a machine specially adapted
for the manufacture of horse shoes.
Figure 1 is a vertical longitudinal section through the part of the machine in
question, Figure 2 a plan of same, portions being omitted which will be hereinafter
named, and Figure 3 is vertical longitudinal section through a detail part.
The shoe bar to be bent is placed on the bed plate a of the machine in such
manner that its front end comes between the ends of a. fork shaped arm b and
against a sliding piece f which I call the hammer. The fork shaped arm is fixed to
the bed plate by two hinged bolts. The bar is held in this position by means of a
pinching appliance d, (not shown in Figure 2 but shown separately at Figure 3)
which can receive a slight up and down motion in guides by means of an eccentric,
knuckle joint action, or other suitable mechanism. The bammer f which may
suitably be cross shaped that is to say having a narrower front and back extension,
is guided between the two sides of the fork and under lips g formed thereon (not
shown in Figure 2) so that it may be worked backwards and forwards in the fork
to a certain extent. The hammer f is normally pressed out by a strong helical
spring h.
The horse shoe having been placed in the aforesaid position in the machine the
fork shaped arm b is swung up around its hinged bolts c for the purpose of bending
the shoe around the lower front edge i of a plate d¹ fitted in the front part of the
pinching appliance d. At the beginning of the bending operation there is only a
slight compression of that part of the material which is between the plate d' of the
pinching appliance d and the hammer f because the latter yields whereby the
spring his compressed. But as soon as the hammer has thus been pressed home
against the bottom of the fork b the material will during the remaining part of the
bending operation be "upset" considerably.
In order to render the machine more durable and to facilitate repairs it is
preferred to line the surfaces which come in contact with the shoe with pieces or
plates d', a, b, m³ and m² of steel or other suitable material which can be easily
takon out and replaced as required. The position of the edge i¹ around which the
bending is effected may be adjusted by wedges or other pieces.

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim as
the invention communicated to me is
First. The combination in a machine for simultaneous bending and upsetting
metallic objects of the pinching appliance d with adjustable steel piece d², the
bedplate a and the fork shaped arm b.
Second. In the arrangement firstly claimed, the application and use of the so
called hammer f which within certain limits can be slided in the arm band is
supported by the spring h.
Third. The machine for forming calks on horse shoes by simultaneous bending
and upsetting of the horse shoe blank, substantially as set forth.
Doted this 0th JAL
100K
BREWER & JENSEN,
For the Applicant.