Improvements in Machines for Swaging Round Articles.
Year: 1892

page_text: Date of Application, 10th May, 1892
Complete Specification Left, 7th July, 1892-Accepted, 13th Aug., 1892
[4
PROVISIONAL SPECIFICATION.
Improvements in Machines for Swaging Round Articles.
I, WILLIAM HENRY DAYTON, of No. 13 Litchfield Street, Torrington, in the
State of Connecticut, United States of America, Machinist, do hereby declare the
nature of this invention to be as follows:―
Before
my present invention a stationary shell or head had heen made use of
with a central opening containing a shaft, with a head at the end thereof within
the shell, and across this head a mortise or channel was formed containing dies
adapted to shape the round article, and between the revolving head and the interior
of the stationary circular shell, rollers were placed with which the outer ends of the
cross dies came into contact, progressively, as the shaft and head were revolved; and
these rollers rolled against the interior surface of the circular shell, the object being
to swage or progressively compress needle blanks, or other round articles, in the
formation of needles, the pointing of wire, etc.
The present invention relates to the combination with the devices before
described of sliding wedges or equivalent mechanism acting between the dies and
the actuating mechanism, so as to vary the opening or closing of the dies during
the swaging operation.
With this object in view, in the cross mortise or slot in the revolving head, dies
and die blocks are introduced with wedges between the dies and die blocks and
parallel with the axis of rotation, or nearly so, and these wedges can be moved
endwise during the swaging operation, by connections between such wedges and a
tube extending through the hollow revolving shaft, and at the back end of this tube
a grooved collar, to be acted upon by a forked lever or other convenient device,
is applied to give end motion to the tube and to the wedges, so as to forge or swage
round articles and give to the same a tapering form, or to reduce one portion
of a rod, or other article, to a smaller diameter at one place than at another place.
Dated this 10th day of May 1892.
COMPLETE SPECIFICATION.
Improvements in Machines for Swaging Round Articles.
I, WILLIAM HENRY DAYTON, of No. 13 Litchfield Street, Torrington, in the
State of Connecticut, United States of America, Machinist, 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,
reference being had to the accompanying drawings and to the letters and figures
marked thereon, that is to say :-
Before my present invention a stationary shell or head had been made use of
with a central opening containing a shaft, with a head at the end thereof within the
shell, and across this head a mortise or channel was formed containing dies adapted
to shape the round article, and between the revolving head and the interior of the
stationary circular shell, rollers were placed with which the outer ends of the cross
dies came into contact progressively, as the shaft and head were revolved; and
1 Price Rd7

page_text: these rollers rolled against the interior surface of the circular shell, the object
being to swage or progressively compress needle blanks or other round articles in
the formation of needles, the pointing of wire, etc.
The present invention relates to the, combination with the devices before
described of sliding wedges or equivalent mechanism acting between the die and
the actuating mechanism, so as to vary the opening or closing of the dies during
the swaging operation.
With this object in view, in the cross mortise or slot in the revolving head, dies
and die blocks are introduced with wedges between the dies and die blocks and
parallel with the axis of rotation, or nearly so, and these wedges can be moved end wise
during the swaging operation, by connections between such wedges and a tube
extending through the hollow revolving shaft, and at the back end of this tube a
grooved collar, to be acted upon by a forked lever or other convenient device, is
applied to give end motion to the tube and to the wedges so as to forge or swage
round articles and give to the same a tapering form or to reduce one portion of
a rod or other article to a smaller diameter at one place than at another place.
Fig. 1 is an elevation of the swaging head with the cap removed, and Fig. 2 is a
longitudinal section of the same.
The dies A B are adapted to slide radially in the revolving head C of the
shaft D and their adjacent faces are recessed semi-circularly and more or less
tapering so as to be adapted to swaging the intended article and around the
head C is a stationary shell E and within this shell are the rolls F or equivalent
devices for pressing the dies towards each other as the shaft D and head C
are revolved.
I provide an inclined surface that is movable end wise in relation to the dies, so that
the die actuating devices may act more or less upon the dies, that is to say, to bring
them nearer together or allow them to be further apart, and the end motion is given to
the inclined surfaces in any suitable manner during the operation of the machine,
the dies themselves revolving in a fixed position relatively to the movable inclined
surfaces. Several devices for effecting these objects have been devised by me, but
in the drawing I have represented convenient devices for use and which illustrate
the features of this invention.
The dies A B are represented as within a cross groove in the revolving head C,
and held therein by the removable cap plate G, and there are die blocks H H in
line with the dies A B and against which the rolls F act, and these are held in
position by the cap plates K.
The wedges II intervene between the dies and die blocks and they are movable
end wise, so that when the thicker portions of the inclined surfaces of the wedges
are between the die blocks and dies, the dies will be brought closer together than
they will be when the thinner parts of such wedges are in operative positions.
The cross pin or key M passes into holes in the wedges and the pin is within a
slot in the shaft D, which slot is elongated in the direction of the length
of the shaft and the key M is connected to or formed with the adjusting
tube S that is within the shaft D and such tube S is provided with a grooved head
that is acted upon by a forked lever or other convenient device so as to move
such tube S end wise of the shaft and regulate the position and action of the
wedges.
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. The combination with the swaging dies and means for closing the same,
of inclined surfaces, and mechanism for moving the inclines during the action of
the dies for causing the dies to perform the swaging operation when either nearer
together or further apart, substantially as set forth.
Second. The combination with the swaging dies and the revolving shaft and
head carrying the same, of wedges, means for moving the wedges endwise during

page_text: the swaging operation and die actuating mechanism controlled in its action on
the dies by the wedges, substantially as set forth.
Third. The combination with the revolving shaft and its head, of dies and
die blocks and mechanism for closing the dies and wedges intervening between the
dies, and die blocks, for varying the action of the dies, and the adjusting tube
within the revolving shaft and the connections to the wedges for moving the same,
substantially as set forth.
substantiany as set
Dated this 7th day of July 1892.
ERNEST DE PASS,
Chartered Patent Agent,
78, Fleet Street, London, and 6, Victoria Street, Nottingham,
Agent for the Applicant.