Improvements in Rotary Swaging Machines.
Year: 1892

page_text: Date of Application, 25th Jan., 1892-Accepted, 27th Feb., 1892
COMPLETE SPECIFICATION.
Improvements in Rotary Swaging Machines.
I, ANTOINE JEAn Langelier, of 67 Clifford Street, Providence, County of
Providence, and State of Rhode Island, United States of America, Machinist, do
hereby declare the nature of my 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 has reference to improvements in rotary swaging machines used
for compressing, hammering, and also for pointing bars of metal.
Rotary swaging machines have heretofore been provided with toggles, which,
when they come in contact with the die-blocks or the followers acting on the die-
blocks, follow the die-blocks for an appreciable distance, and therefore the die-
blocks, while they are forced against the metal to be swaged and compressed, do
not strike the metal with a quick blow.
The object of this invention is to materially simplify the construction of rotary
swaging machines, to make them more durable, and to impart quick sharp blows in
rapid succession through the die-blocks to the metal to be swaged.
The invention consists in providing the head of the swaging machine with a series
of rolls, which, while they turn on their axial center, do not follow the die-block,
but impart a quicker blow than was possible with the toggle-arms or levers.
Figure 1 is an end view of the head of the improved rotary swaging machine,
with the end ring removed.
Figure 2 is a vertical longitudinal sectional view of the machine.
Figure 3 is an end view of a head of a rotary swaging machine, showing
a modification of the arrangement of the rolls by which the die-blocks are
operated.
Figure 4 is an end view of a head of a rotary swaging machine, showing the
rolls arranged in their simplest form.
Similar numerals of reference indicate corresponding parts in all the figures.
In the drawings, 5 indicates a standard forming the support and bearing for the
horizontal tubular shaft 6, provided at one end with the pulley 7 or other means
for rotating the shaft. On the other end, the tubular shaft 6 is provided with a
transverse slot, in which the die-blocks 8 and the followers 9 move radially toward
and from the center of the tubular shaft 6.
The head 10 forms part of the standard 5, and is stationary; in its simplest
form shown in Figure 4, the head is provided with a number of recesses in which
the rolls 11 are placed, and in which these rolls turn in contact with the tubular
shaft 6.
As this shaft 6 is rapidly revolved, the die-blocks and followers are thrown
outward by centrifugal force, and each time they come in contact with the rolls
at their opposite sides, they are suddenly forced outward against the rod or metal
to be swaged.
The object in using followers in connection with the die-blocks is to permit of
adjustment of the blow. This arrangement has long been used in connection with
the toggles. If desired, two sets of die-blocks may be used, so that the bar to be
swaged may be successively operated upon first by one and then by the other set
of die-blocks.
The enlarged end of the tubular shaft 6, in which the transverse slot for the die-
blocks is shown in Figure 2, is made sufficiently larger to receive two transverse
slots and two sets of die-blocks, and the rolls 11 are made sufficiently longer to act
upon both sets.
•
In Figure 1, the rolls 11 instead of bearing on the concaved surfaces of the

page_text: recesses, bear on two anti-friction rolls 12, placed into recesses formed in the
head 10. Another method is shown in Figure 3, in which each one of the rolls 11
bears against two anti-friction rolls 13, placed in recesses formed in the head 10.
The operation of the rolls in the modified forms shown in Figures 1 and 3,
is exactly like the operation of the rolls 11 in the simplest form shown in
Figure 4; in all the forms the rolls 11 are held in a fixed position while they
roll around their axes. They do not dwell on the followers, but impart a sharp
sudden blow.
The rolls are held in place by the face-plate 14, secured by bolts to the stationary
head.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. In a rotary swaging machine, the combination with a rotating-disk having
a transverse slot in which the dic-blocks are placed, of a stationary head provided
with a series of rolls held in a fixed position but adapted to rotate and arranged to
force the die-blocks inward, as described.
Second. In a rotary swaging machine, the combination with die-blocks and
followers of the same working in a transverse slot provided in the end of a
revolvable hollow shaft, of rolls held in a stationary head surrounding the swaging
head, adapted to operate the die-blocks, as described.
Third. In a rotary swaging machine, the combination with a hollow shaft mounted
in suitable bearings and means for rotating the same, of a swaging head or heads
'provided with transverse-acting die-blocks, a stationary head surrounding the
swaging head, and rolls inserted in the stationary head adapted to operate the die-
blocks, as in rotating they come in contact with the rolls, as described.
Providence, R.I., U.S.A., November 23rd 1891.
In presence of:--
ANTOINE JEAN LANGELIER.
JOSEPH A. MILLER, Jr.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.