William. J?ayman.

E. H. WRAY & W. J. HAGMAN.
HAMMER PRESS.
APPLICATION FILED AUG. 8, 1912.
1,084,054,
Patented Jan. 13, 1914.
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William. J?ayman.
Witnesses:
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Inventors
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Attorney
UNITED STATES PATENT OFFICE.
EDWARD H. WRAY AND WILLIAM J. HAGMAN, OF PHILADELPHIA, PENNSYLVANIA,
ASSIGNORS TO 'NILES-BEMENT-POND CDMPAKY, OI‘ JERSEY CITY, NEW JERSEY.
HAMMER-PRESS.
1,084,054.
Speci?cation of Letters Patent.
Patented Jan. 13,1914.
Application ?led August 8, 1912. Serial No. 713,991.
To all whom it may concern: _
15, the hydraulic piston-rod: 16, the hy
Be it known that we,‘ EDWARD H. WRAY draulic press-head carried by the lower end
and ‘WILLIAM J : HAGMAN, citizens of‘ the of the hydraulic piston-rod, and adapted to ,
55
'11; and 18, a conduit leading. to the lower
ments in Hammer-Presses, of which the fol end
of the hydraulic cylinder from the
lowing is a speci?cation.
source
steam supply, the illustration
This invention pertains to improvements showingofthis
conduit as receiving its steam
in that class of forging machines involving from the steam-supply
connection to the
a hammer, actuated by steam or other elas
60
in suitable vertical guideways: 17, the
United States, residing at Philadelphia, slide
press-die secured to the hydraulic
Philadelphia county, Pennsylvania, have hydraulic
press-head
and cooperating with the anvil
invented certain new and useful Improve
10
’ "
tic ?uid, for striking impactive blows upon steam-chest.
Under
the
control of valve 4 the steam
the work, together with a hydraulic press hammer may be
as usual in steam
arranged to produce powerful squeezing hammers, and atoperated
the
same
time steam en
pressure upon the work.
.
tering
the
base
of
the
hydraulic
cylinder
The present invention will be readily un
through
conduit
18
exerts
a
constantly
up
derstood from the following description ward pressure on the hydraulic piston and
taken in connection with the accompanying
drawing which is a vertical section through
20 the hammer andv press cylinders of a ham
mer-press exemplifying our invention.
In the drawing: 1', indicates ‘a portion of
the frame of the hammer-press, which frame
may be of the character usual in machines
maintains the hydraulic press-head and its
as usual in steam -hammers: 4, a valve,
pressure may be admitted to the hydraulic
steam-cylinder. 5, the steam-inletstoihe
steam-chest: 6, the exhaust-outletfrom the
steam-chest: 7, the steam-piston working in
the steam-cylinder: 8, the steam piston-rod,
squeezing action of high importance in cer
65
die in elevated position. If water, at com
paratively low pressure he admitted above
the hydraulic piston, through connection 13,
the hydraulic piston and 'presshead will be
moved down into contact with the work, the
movement of the hydraulic pis
of this closs of‘steain-hammers: 2, the cylin' downward
ton
displacing
steam under ‘the piston and
der of the steam-hammer, the term steam forcing it back into
the steam main or source 80
being used as typical of any suitable elastic
When
the hydraulic die,"v
?uid for operating the hammer: 3, the of steam supply.
has
made
contact
with
work then,
steam-chest, connected by ports with the up— through the connection 13,thewater
at‘ high
per and lower ends of the steam-cylinder
adapted to be operated as usual in steam piston, thus forcing the hydraulic-head and
hammers, the valve serving to admit steam> die down upon the work with enormous
to and exhaust it from either end‘ of the , ,pressure'and"producing upon the work a
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40
9, the hammer-head carried by the lower
end of the steam-piston-rod and adapted to
slide in vertical guideways as is usual in
steam-hammers: 10, the hammer-die secured
85
tain classes of forging work. In some uses
of hammer-presses the descending movement
90
as well as the squeezing pressure of the
hydraulic-die is produced by water at heavy
pressure, as produced, for instance, by an
accumulator and in this case the steam act
ing under the hydraulic piston need not be
95
as usual to the hammer-head: 11, the anvil exhausted but may ?nd its way back to the
with which the steam-hammer cooperates: source of steam supply. In other uses of
12, a hydraulic press-cylinder disposed ver hydraulic presses the lowering motion of the
45 tically
alongside the steam-cylinder: 13, a hydraulic-die is effected by water at com
water inlet connection to the upper end of paratively low pressure, the ultimate
the hydraulic-cylinderkthis water inlet con squeezing action being later produced by
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at high pressure as from an intensi
nection ‘being adapted for communication water
?er.
Our
present invention lends itself to
through. suitable controlling valves with the
source of supply of water which is‘ to oper
ate the hydraulic-pressrl/l, the hydraulic
piston working in'the hydraulic cylinder:
either system for the operation of hammer
presses.
A piece of work to be operated upon, hav
105
2
1,084,054
ing been suitably heated, is laid upon the
anvil, which anvil is common to the ham
mer-die and the hydraulic press-die. Then
by suitably shifting the work upon the an
10
to the hammer or press as needed or to both
successively.
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We claim :—
1. A hammer-press comprising, a verti
v11 it may be subjected to either the im
cal steam-cylinder, a vertical hydraulic cyl
pactive blows of the steam-hammer or to
inder alongside the same, a piston in each
cylinder, a piston-rod connected with each
piston, a head carried by each piston-rod,
the squeezing action of the hydraulic press,
and the work in thus being subjected to
action by the ‘alternative instrumentalities
may be placed alternately under the dies, or
a die carried by each head, an anvil below
the dies, means for supporting the hydraulic
the work of either die may be concentrated piston in its upward positionya steam-valve
upon it to the exclusion of the other die. controlling passages for the ?ow of steam
When hammering is to be done it is prac to and from above and below the steam
ticable to locate the work and then emplo' piston, and a conduit for admitting liquid
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the press to clamp it ?rmly for a period’: under pressure above the hydraulic piston,
and when pressing is to be done the hammer
combined substantially as set forth. .
r
may serve in holding the work, and when - 2. A hammer-press comprising, a vertical 55
the hammer is in use without the aid of steam-cylinder, a vertical hydraulic cylinder
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$5
the press the press-die is held up out of the alongside the same, a piston in each cylin
way, and when pressing is done, without the der, a piston-rod connected with each pis
aid of the hammer, the hammer is held up ton, a head carried by each piston-rod, a
out of the way.
‘
die carried by each head, an anvil below the
In forging with steam hammers or com dies, a steam~valve controlling passages for
bined hammers and presses, the pieces are the flow of steam to and from above and
often of great weight, weighing many hun
dreds of pounds and require to be support
below the steam-piston, a conduit for ad
ed by a crane and to be worked promptly
draulic piston, and a conduit connected with
mitting liquid under pressure above the hy
while at the proper high heat. In operat the base of the hydraulic cylinder and
ing on a given piece wh1le at proper forging adapted to apply a pressure of steam below
heat, some of t e work calls for the impac the hydraulic piston for the purpose of
tive blows of t e hammer and other work raising or holding the hydraulic piston in
for the powerful squeeze of the press, and elevated position, combined substantially as
the shifting from one action to the=other set forth.
must be done with quickne‘s and the work
must be accurately and ?rmly held._ In the
present device where the squeezing press’ and
I’ thewstrikingnlminmer work on practically
the same anvil, t-heIw'o‘rkemay be presented
60
EDWARD H. WRAY.
WILLIAM J. HAGMAN.
Witnesses:
WM. B. CORNELL,
R. RAYMOND PORTER.
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