Improvements in Machines for Swaging or Rolling Metals.
Year: 1898

page_text: Date of Application, 16th Aug., 1898-Accepted, 25th Mar., 1899
COMPLETE SPECIFICATION.
Improvements in Machines for Swaging or Rolling Metals.
I, GEORGE HIRAM HATHORN, of the City of Bangor, County of Penobscot, and
State. of Maine, United States of America, Manufacturer, 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:
My invention relates to an improved swaging machine for producing irregular
swagings from metal bars, and consists of a table or stand provided with an
upright frame containing a reciprocating slide with means for operating the
same, and a stationary head adjustably secured to said frame, both head and
slide being provided with means for holding and retaining swaging dies as will
hereinafter be fully set forth and described.
Throughout the description reference is made to the accompanying drawings
in two sheets, in which:
Fig. 1, represents a perspective view of my improved swaging machine
complete.
Fig. 2, is a similar view of the stationary head of my device showing the
adjustable die holder attached.
Fig. 3, shows a perspective view of my machine with the head removed.
Fig. 4, shows a similar view of a die used in my machine.
Fig. 5, is a perspective view of the slide used in my device, with the connecting
rod attached.
Similar letters of reference refer to correspondingly like parts through the
several views.
The object of my invention is to produce a simple and quick acting swaging
machine for producing irregular swagings from metal bars and is accomplished
in the following manner:
Referring to the drawing, A, represents a rectangular shaped stand supported
by legs G, depending from each corner. The lower ends of the legs G, I fasten
securely to a frame J, which in turn is fastened to the floor, or the legs G, can
be fastened to the floor direct but the former method is preferred as the frame J,
furnishes means for attaching supports K, K, for the purpose of securing a
horizontal shaft L, directly under the stand A, and in line therewith. This
shaft L, is provided with a power wheel H, balance wheel M, and upon its inner
extremity with a crank wheel F, having the usual crank pin, to which is pivoted
the lower end of a connecting rod D, which I construct with a strap T, enclosing
half-boxes e, e, clamping said crank pin, and a spring O, is inserted between
the boxes and the end of the connecting rod D. The object of the spring 0,
is to relieve the strain upon the crank pin and counteract the sudden jar
occasioned by the changing from a downward to an upward movement by the
crank pin in passing the lower dead centre of the crank wheel F, in changing
from rotary to a reciprocating motion.
The connecting rod D, extends upward through the central opening in the

page_text: stand A and is pivoted to a vertical slide C, near its upper end by means of the
long wrist pin Ń (as shown in Figs. 1, 3 and 5 of the drawing). A brace D'
fastened to the outer end of the wrist pin N extends diagonally downward and
is rigidly fastened at a convenient place to the connecting rod 1, and tends to
greatly stiffen the connection in the slide C.
The slide C, consists of a long metal casting having its opposite side edges
parallel and planed on an incline to fit V-shaped grooves (termed ways) a, a,
planed in the vertical uprights B, B, secured to and rising from the top of the
stand A, near its forward end in a position directly over the crank wheel F, on
the horizontal shaft L. These uprights B, B, are supported in vertical position
and are held rigid by the rear brace rods R, R, attached thereto and confined
at their opposite ends to the rearward portion of the stand A.
Placed in the V-shaped groove a, of one of the uprights B, is a strip of steel,
called a gib, which extends the entire length of this groove and is inserted
between the latter and the wearing edge of the slide C, for the purpose of taking
up the wear necessarily caused by the continued reciprocation of the said slide.
Means are provided for adjusting this gib h, by screws S, S, called gib screws,
extending through the upright B, along its outer edge and bearing against said
gib in such a manner that turning the screws will force the gib against the edge
of the slide and thus maintain an even contact therewith.
Longitudinally extending upon the front of the slide C, is a raised surface C²,
planed smooth with the exception of a rib d, projecting from its right edge.
This rib d, extends the entire length of the raised surface C¹, and forms a
shoulder against which can be placed one edge of a swaging die (as shown in
Fig. 5 of the drawing) while the opposite edge of the die is held in place by
the use of tapered headed screws entering holes on the opposite edge and bearing
against the tapered incline of said dic, with this arrangement the entire length
of the die is clamped against the slide without any possibility of its springing
and the raised surface Č¹, serves as a die holder cast of the same piece as the
slide. Other holes are drilled and tapped to receive screws for dies of different
widths upon the raised_surface C', and to prevent the die from moving in either
longitudinal direction I screw a plate above and below the same, as shown in
Figs. 1 and 5 of the drawing.
Parallel with and directly in front of the lower termini of the vertical up-
rights, B, B, I fasten the head of my device, which consists of a solid rectangular
shaped casting E, secured to the uprights by the bolts P, P, passing through
holes V in the lower corners and its upper left hand corner and provided with
nuts turning thereon, at the opposite side of the head. This head E, is held
away from the left hand upright B, by means of flanges m, m, secured to said
uprights and entering a groove r planed in this side of the head. Small set
screws X, X, are set into the front side of the head E, in position to be turned
against the flanges m, m, in the groove for the purpose of furnishing means
for regulating the distance between the edges of said head and the upright B.
The opposite edge of the head E, is adjusted for its neighbouring upright B,
by the use of a set screw u screwed into said upright below the fastening bolt P.
This head is further adjusted in a vertical direction by a set screw n, directly
under the lower edge of the same and screwed into the stand A, as shown in
Fig. 3, of the drawing.
The inner face of the head E, is planed its entire surface and is provided with
an adjustable die holder W, consisting of a plate having a vertical ridge d, at
one edge against which the die is placed and provided with threaded screw holes
for taper headed screws as herein before described, for securing the opposite edge
of the swaging die. This die holder W, is attached to the head E, by bolts t, t,
near each end, which pass through slots f, f, in the head, said bolts being
provided with nuts on their outer ends, which construction allows a side adjust-
ment of the die and holder from the outside of the machine.
The front edge and upper right corner of the head E, is left open and devoid

page_text: of fastening bolts of any kind which produces a perfectly free opening to allow
the metal to be swaged, to be placed between the dies and a free view of the
dies during the operation.
The manner of using my machine is as follows:-One swaging die is placed
upon the raised surface C, of the slide C, with its depressed end downward, and
securely fastened thereto, by screws hereinbefore described or other good and
sufficient means. A second die is fastened to the die holder W, of the head E
in the same manner with its depressed end upward, and adjusted by the different
set screws so as to be in direct line with the opposite die on the slide C. By
turning on the power, the slide C, is reciprocated and passes the standing die
on the head E, in both upward and downward movement. The operator inserts
the metal to be swaged between the head and the uprights B when the moving
die is in its upper position, and directly over the top of the standing die on
the head. A downward stroke of the slide C, causes the moving die to grasp the
metal and swage the same by a rolling and cutting movement carrying the
swaged article with it which drops from the bottom of the machine after the dies
have passed each other. As the moving die rests until the crank pin has passed
over the upper centre the operator is allowed sufficient time to again place the
metal in position before the slide starts downward.
.
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:
1. An improved swaging machine consisting of a stand with uprights, meaus
for holding a slide, a slide having means for securing a die thereto and recipro-
cated by attachment with a revolving crank, a head secured parallel to said
uprights to extend across the slide and means for holding a die thercon in line
with the die on the slide and means for adjusting the head vertically, transversely
and longitudinally of the base, as and for the purpose described.
2. In a swaging machine, a frame, an adjustable head secured thereto, said
head being provided with a vertical groove, uprights on the frame, one of which
has flanges fitting in the groove of the head, a die holder secured to the inner
face of the head and provided with means for adjusting the die, said head being
so arranged that a space is formed therebetween and one of the uprights, as and
for the purpose described.
3. In a swaging machine, the combination with a stand having vertical up-
rights provided with guides for receiving a reciprocating slide, a wrist pin
secured to said slide, a connecting rod attached to said wrist pin and having
a brace extending to the outer end of the same, half boxes in the connecting
rod end adapted to slide between a strap secured thereto and a spring to retain
said box in position for the purpose described; a power shaft having a crank
wheel attached to the lower end of said connecting rod and means for rotating
said shaft, for the purpose described.
4. In a swaging machine provided with a reciprocating slide having means
for retaining a die thereon, a stationary head secured to and parallel with the
frame of the machine, said head being adjustable on said frame by means of
confining bolts and set screws bearing against projecting flanges rising from
one side of the frame, an adjustable die holder secured to said head and con-
structed with a ridge and means to secure a die thereto, adjusting bolts securing
the die holder to said head, a separating bolt between the front end of the head
and frame on the opposite edge from the flanges in such a manner as to leave
an open top and one side for inserting the metal between the dies, as and for
the purpose described.
5. An improved swaging machine consisting of the combination of a stand
having depending legs, a horizontal shaft secured thereto and provided with
power wheels and connection with a suitable power medium, a crank wheel
secured to one end of said shaft, a connecting rod pivoted to said crank wheel

page_text: by means of sliding half boxes held in place by a spring, said connecting rod
having its opposite end secured by a wrist pin to a slide, said wrist pin having
an extended end connected by a brace to the connecting rod as described, a slide
having a raised surface and longitudinal rib for the purpose described, with
means for retaining a swaging die thereon, parallel uprights extending from
the top of said stand and having ways for receiving a slide, and also provided
with a gib in said ways adjusted by gib screws projecting from said upright,
one or more flanges projecting from the side of one of the uprights, confining
bolts projecting from uprights and a head secured to the same by said confining
bolts, said head having a groove to receive said flanges, and set screws for adjust-
ing the same, an adjustable die holder secured to said head by bolts passing
through slots in the latter and having means for securing a die thereto, a separat-
ing bolt between the front edge of the head and from the upright opposite the
flange, substantially as shown and described.
6. In a swaging machine having a stationary frame, an adjustable head secured.
thereto by bolts passing through its lower corners and upper left hand corner,
said head being provided with a groove adapted to receive projecting flanges from
one of the uprights of said machine and adjusted thereon by set screws, a die
holder secured to the inner face of said head and provided with a die holding
arrangement all constructed in such a manner as to leave an opening between
the head and one of the uprights for inserting the metal between the dies and
over the top of the head, substantially as shown and described.
Dated this 15th day of August 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.