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Патент USA US2403822

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‘
July 9,‘ 1946.
Y .
.
I'J._A.YMULLER
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v3
I
J
2,403,822‘ ,.
CYLINDRICAL PRESS STRUCTURE
Filed 001:.‘ 24, 1940
45:
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5 sheets-sheet 2- .
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JOHAN A. MULLED
58%,
ATTODNEYS '
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' July 9, 1946.
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J_ A_ MULLER -
.cYLINbRIcAL PRESS STRUCTURE ‘
Filed Oct. '24, ,1940 1
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- 2,403,822 v
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‘
5 Sheets-Sheet s V
F5657.,
- .lNvENToR
‘JoHAN A. MULLER
ATTORNEYS
July 9, 1946-
- J. A. MULLER
2,403,822 -
CYLINDRICAL PRESS STRUCTURE
. Filed Oct. 24, 1940
2
TB.
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Int-1.5.v
5 Sheets-Sheet 4
1
70
65
52
by JOHAN fLMULl-ER,
v
Patented July 9, 1946
2,403,822
UNITED STATES PATENT OFFICE
to The Hydraulic Development Corporation,
Inc., Wilmington, Del.,‘a corporation .of Dela
Ware
Application October 24, 1940, Serial No. 362,634
1
35 Claims. (Cl. 100%71)
2
This invention relates to presses, and in par
ticular to the main body of a press comprising the
press head andpress bed.
,
providing a press vbody with integral press head
and press base, which has simpli?ed means for
I
guiding ‘the press platen and allows of said
Heretofore it was standard practice in the
building of presses with a press head and press
bed ‘to cast the head andgthe'bed of a press sepa
rately and to connect the same by means of strain
guiding means being machined with the same
machining setup which is used ior machining the
cylinder bore in, the press ,bocly.
Still another object of the invention consists
rods. Such castings include very heavy project
in the provision of a press body in which the
ing lugs through which the strain rods pass and
press head is integral with a‘solid press bed.
which cause such variations in thickness of the 10
These and .otherobjects and advantages of the
sections that it is very dit?cult to get a sound
invention will appear more clearly from the fole
lowing ‘speci?cation in connection with the ac
casting. Furthermore, considerable machining is
required for providing the shoulders on the cast
companying drawings, in which; _
ingsfor the strain rods and vfor boring the holes
Figure 1 is a perspective view of the press body
through which the strain rods are passed. In 15 according to the invention.
'
_
addition to the expensive material required for
Figure
2
shows
a
?rst
embodiment
of
the
in.
the said strain rods, the assembling and proper
vention partly in section along the line 2-2 of
locating of the strain rods and of the bed and
Figure 3.
I
head castings takes considerable time, thereby
Figure 3 is a. section along the line 3—3 of
further increasing the cost of production of such 20 Figure
2.
presses.
Figure 4 illustrates a-section along the ‘line v4——ll
It is, therefore, an object of the invention to
of Figure 2.
r _
V
provide a press body comprising a press head and
Figure 5 shows a modi?cationofithe lower part
press bed which is simplein construction, rela
of the press jbody illustrated in Figure 2‘.
tively ,cheapto manufacture, and makes it pos 25 I Figure 6 is asection along the line 6.—.6 ofthe
sible materially to reduce the time heretofore re
press body shown in Figure 7 and constitutes a
quired for assembling the various press members.
further
embodiment of the invention.
It is another object of, the invention to provide
Figure 7 shows a Section along the line 1910f
a press comprising a press head and press bed,
in whichrthe strain rods heretofore required for
30
spacing and connecting the head and bed of a
the outer contour thereof.
press are eliminated.
invention showing the presshead and pressbed
posed upon each other.
base.
, ,A still further object of the‘invention consists
in the provision of a press body with a press
to Figure v8, in which the press head .and press
base :are connected with eachaother by a kind of
bayonetjoint.
40
7
It is still another object of the invention to
provide a press with-apress bed and press head,
in which the press ,bed and press base constitute
a single cast unit with. a longitudinal cored bore
therethrough, which bore is open at one end and
closed :at the other end and hasap?rtures inter
mediate said ends for allowing the insertion of
"
Figure 10 shows an exploded viewof the bayo
net joint ,used in the structure .of Figure .9.
Figure 711 shows, on a somewhat smaller scale,
the method-of assembling the press bed of "the
structure illustratedin Figure 9. "
K Y
‘
Figure 12 shows a detail of the invention.
‘ Figures 13 to i9illustrate:a;,convenient¢1nan
ner of assembling the press platen and press ‘
bed in a press ;body according to ,the invention.
Figure 20 Shows a sectiqn through-.as'till fur-
the press platen.
ther embodiment of the invention ‘
‘Figure 21 is a viewof ,a still giurther 'enibodia
ment of- the , invention, which -.e.,mbodiment-allows
the .emplqyrnentcf a circular platen and has
‘It is a still; further object of the invention to .
provide a press of _the~_.~type set i’orth in the Pre
ceding paragraphs, in which the press base com
prises amultiple vpartpress bed;
.Another object of the invention consists in
'
Figure 9‘is an embodiment ‘somewhat similar
head and/press bed, in which the press head and
formsection and may be machined from oneend
1
as separate castings’ which are directly superim
the press head is directly ‘placed upon the press .
of the casting in one machining setup.
'
Figure .8 is a still further embodiment ,of the
It is a. further object of the invention to pro
vide a press of the type set forth above, in which
press ‘base are ,cast as a single unit of fairly uni
Figure ,6 in which, however, the press [ram ‘and
press platen are not shown in section to indicate
55
nrovisionafora simpli?ed .assembly'thereof in the
press'body.
2,403,822
3
Figure 22 is a vertical section through Figure
21.
Figure 23 is a section along the line 23-23
of Figure 22, and
Figure 24 is a section along the line 24—-24
of Figure 22.
Referring to the drawings in detail and in
4
shaped shoulder 39 in the press base. The seg
ments 34 are furthermore provided with a
shoulder 40 for receiving and locating a central
or cylindrical member 4|;which is of such di
ameter as to allow its insertion into the press
body through the windows 23, 24. If desired,
means such as a key or pin may be provided
for preventing an accidental turning movement
particular to the embodiment of Figure 2, the
of the central or cylindrical member 4|. Sim
press body illustrated therein comprises a press 10 ilarly, the segments 34 are held in their posi
head I and press base 2 which are integral with
tion by keys, pins or the like. The central
each other and preferably cast as a single unit.
member ‘4|, together with the segments 34, con
The press head I carries a ?uid storage tank
stitutes the press bed which is adapted to sup
3 which is connected with the press head in
port a work piece.
any convenient manner. The press head | has
After the casting comprising the press head |
a cylinder chamber 4 with a cylinder bore 5, 15 and press base 2 has been properly machined on
in which the press ram 6 is reciprocably mounted
its inside for receiving the press ram 6, press
and which is adapted to communicate through
platen 22 and segments 34, the different press
a surge valve 1 with the ?uid tank 3. The surge
members can easily be inserted into the casting
valve 1 does not form a part of the present in
in any desired manner. A convenient method for
20
vention and for a more detailed description
assembling the various press members is illus
thereof reference may be had to U. S. Patent
trated in Figures 13 to 16. According to this
No; 2,193,248 to Walter Ernst. The purpose of
method the casting comprising the press head
the surge valve 1 is to pre?ll the cylinder cham
| and press base-2 is placed upside down with
ber 4 and cylinder bore 5 at the beginning of
the top part on the floor. The ram 6 is then
25
the downward stroke of the press ram 6. The
lowered in position through the opening 31 which
press head I is furthermore provided with an
is slightly greater than the diameter of the press
inlet 8 communcating with a conduit 9 for sup
ram in order to provide the necessary clearance
plying pressure ?uid from a pressure ?uid source
therefor. Thereupon the packing H1 is inserted
(not shown) to the cylinder chamber 4. To
and the gland II, in the present instance made
30
prevent leakage from the cylinder chamber 4
up of four sections, is fastened to the shoulder
and cylinder bore 5 toward the outside, a pack
H to hold the packing in place. After the ram
ing I0 is provided compressed by a gland ||.
and the gland are thus located, the centering disc
As will be seen from Figure 4, the gland H is
23 is inserted into the recess IQ of the ram. Now
made up of a plurality of segments, Ila, Ilb,
as indicated at Figures 14 and 15, the platen 22,
35
He and lld, which are connected to the
the width of which is less than the width of the
shoulder l2 of the press head by means of screws
windows 23 and 24, is passed with its smaller side
l3 and are inter-connected by connecting mem
portion through one of said windows and pushed
bers l4 which are fastened to two adjacent seg
over the ram bottom until its recess 2| is engaged
ments by’ means of screws l5 and connected to
40 by the centering disc 20. The platen 22 is then
the shoulder l2 by screws Hi.
given a one-quarter turn, as indicated in Figure
The press ram 6, which is provided with hollow
16, and the gibs 2B are fastened to the front and
chambers H and bores l8, has a central circular
back of the platen so that they are adapted to
recess I9 with a centering disc 20 therein, a
slide along and be guided by the beveled surfaces
portion of which extends into a recess 2| pro
vided in the press platen 22 which is adapted
to‘ support a die (not shown). The disc is in
tended to properly locate the press platen 22
with regard to the press ram 6.
,
The structure of Figure 2 is provided inter
mediate the press head and press base with
lateral windows 23, 24, having machined edges
on the machined edges or surfaces 25. The cast
ing |, 2, can now be turned over so that the base
2 rests on the floor, while care is to be taken that
the ram and platen will stay in their top position.
With the press body in its proper position, the
bed can now be inserted into the press base. To
this end the segments 34 are inserted, preferably
through the windows 23, 24, into the press base
25 servingas guiding surfaces for gibs 26 con
and so located therein'and connected therewith,
nected in any convenient manner, for instance
that they de?ne a cylinder. Then the lower part
by screws 21, with the press platen 22. The
55; of this cylinder is temporarily ?lled with blocks
width of the windows 23, 24 is such as to allow
or a device like a jack which can be worked from
insertion of the press platen 22 with its smaller
below the floor level, whereupon the central mem
sides through said windows, while the length
ber 4| is inserted through one of the windows
of the platen 22 is greater than the width of
23, 24, and gradually lowered into the cylinder
said windows. Provided in the lower surface of
de?ned by ~ the segments until the cylindrical
the press platen 22 and connected therewith in
member 4| engages the shoulder 40 of the seg
any convenient manner are wear plates 28, pref
ments 34. After the cylindrical member 4| is se
erably provided with a curved portion 29, adapted
to be engaged by the correspondingly shaped
upper portion of a push back plunger 30.
cured against accidental turning movement in the
segments 34, the push back cylinders 3|, together
The 65 with the push back plungers 30, are lowered into
push back plunger 30 is reciprocably mounted
in- a push back cylinder 3| which is connected
by poems of its ?ange 32 and screws 33 with
the recesses or cores provided in correspondingly
located segments and are fastened thereto by
means of the flange 32 and screws33. Finally,
hollow-segments 34. To prevent leakage from
the surge valve 1 and the tank 3 are mounted on
the push back cylinder 3| toward the outside,
the press head, while the cylinder chamber 4
a packing 35 compressed by a gland 36 is pro
and the push back cylinders 3| are connected
vided. >The segments 34 which may in part be
with their pipes. As is usual in the press art,
inserted into the press base through the open
also stop members 42, not shown in Figures 4 and
ing 3l'thereof and through the windows 23, 24,
5, are connected to the press bed in order to pre
are provided with a shoulder 38 adapted, when
vent the press platen 22; or a die connected there
75
properly located, to engage a correspondingly
2,403,822
5
with, from a. direct {contact- with the press bed
or'a die supported thereby if the platen ‘22 should
accident-allyjslide downwardly.
'
-
HA‘sv will bei'seen from the drawings, the‘press
illustrated in Figures 1 to 4 has completely elimi
nated the strain rods, heretofore required, and
the press head vand press base, including the press
>6
those-of'Figure 2 are, therefore, designated with
the same reference numerals.
-As will-be seen from Figures '6 and 7, the press
base 2 ‘is provided with a, cylindrical stepped bore
48 having an annular shoulder 49 on which rests
the bed member 50. The contour of the upper
portion of the bed member 58 is similar to the
hectare connected witheach other through the
outer contour of the platen 22, as illustrated in
cylindrical wall portions between-the windows 23
Figure 18. The bed member 50 is also provided
and 24.- The outer contour of the'press is pref 10 with openings 5| for receiving the push back
-erably;rcylindrical and practically without any
cylinders 3| in the manner described in connec
laterally pro-truding’portions so that the space re
tion with Figure v2. Similar to the platen 22,
quired; for the press body is reduced to a mini-v
the bedimembercll is inserted'into the press body
mum.~ ' A's-previously ‘mentionedf-the pressibody
through'thewindows 23, .24, as shown in Figure
comprising the press head and press base ismade 15 18, whereupon the bed member 50 is turned by
as a’v-singlelcasting with a cored longitudinal bore
ninety degrees, as indicated in Figure 19, and
I therethrough which is closed at‘ the press head
temporarily‘ held in' lifted position so that its
and-‘open at the press base, ‘and intermediate
upper portion can be reached through the win
theipress'base and press head communicates with
dows 23 and 24. Now side members or segment
the'ioutside‘by the cored windows. *This struc 20 pieces .52, having a curvature corresponding to
ture; in addition'lto its rigidity and materially
the curvature of the bore 48, are inserted into
simpli?ed shape, has the further advantage that
the machining operations-are practically reduced
to boring ‘and vturning?work. It should also be
the press base and ‘connected with the bed mem
ber¢50 in any convenient manner, for‘ instance
by screws 53.
Thereafter the press bed com
noted that due tothe absence. of laterally pro 25 posed of the bed member 513 and side members 52
truding- wall portions of the press body hereto
is gradually lowered into the press base untilit
fore required for the strain rods, and due to the
engages the shoulder 49 of the bore 48. After
fact ‘that the press head and press bed'are con
the‘press bed is so located it is prevented from
nected'with-each other by the wall of the press. ' accidental turning movements by a key or the
body,» the horizontal distance between the axis 30 like. The push back cylinders 3|‘ may then be
of the press ‘cylinder and the 'remotest point of > lowered into thepress bed and fastened thereto,
the wall of the press body is reduced to a ‘mini
mum; thereby materially decreasing'the bending
while stop members'54 are mounted on the press
bed. .As will be obvious from a comparison of
force exerted‘ by the press ram on the wall of
Figures? and 7 with Figures 2 and 5, the bed
35 structure of Figures 6 and '7 is somewhat simpli
' As will be clear. from the above description, the
?ed over that shown in Figures 2 to 5.
.
main casting comprising the press head and press
t Figure 8 shows a further embodiment of the
the press body. >
~
‘
base can be machined entirely in one setup from
invention according to which the strain rods
' thejbase opening of the casting, The'construc
heretofore required for connecting the press head
tion iswsuch that a boring bar may ‘be inserted 40 and press bed with each other are likewise elimi
intothe. casting which ‘is used for driving the
cutting‘ tools supported by bearings or steady
rests, one mounted outside ofthe base and the
other mounted between the head and base sec
tion. Also the segments '34 and central member
4| can easily be machined by mere turning oper
ations' Consequently, the press body as illus
trated in Figures 1 to 4 considerably simpli?es
the construction and assembly of» presses com
prising a press head and press bed.
are. advantages pQinted out above also apply
wholly or to a great extent to the remaining em
bodiments shown in the drawings.
'
.
Referring to Figure 5, the structure shown
therein differs from the structure in Figure 2
nated. According to Figure 8, the. press head
55 and press bed 56 are made as; separate cast
ings which are superimposed upon each other so
that the press head directly rests upon the press
bed. The press head and press bed are bolted
together by bolts 51 passing through ?anged por
tions 58 and'59 of the press head and press bed
‘7 respectively. Since in this structure the platen
22 may be assembled in the press head before the
lower port1on of the press body comprising the‘
press bed is ?anged to the press head, the mul
tiple part gland II may be replaced by a single
piece gland 60., The remaining parts of the press
illustrated in Figure 8 are/similar to those of
Figures 2, 6 and 7, and are designated with cor
responding reference numerals.
merely in that the segments 34 and the ‘central
member 4| are replaced by a single cylindrical
Referring now to Figure 9, the structure shown
bed member 43 which on its periphery is provided
therein likewise comprises a press head and press
with a thread 44 engaging a corresponding thread
bed made as separate castings which directly en
in the press base. The bed'member 43 is prop 60 gage each other. However, in contradistinction
erly located and held in its position by means
to the embodiment of Figure 8, the press head
of a .pin‘or key 4'5,'engaging .a bore 46 in the press
6| rests directly, by means of its ?ange 32, upon
base and a bore 41 in the bed member 43. The
the, floor 63, while the press bed 64 with its
diameter of the thread 44 may be at .least as
?anged portion 65 is suspended on the bottom 66
large as the diameter of the curved wall portions
of the press head 6!. The assembly of the press
between the windows, in'which wall portions the . bed 84 in the press head 6! will be clear from
press platen reciprocates. This arrangement ' Figures 10 and 11, which show that the ?anged
allows of the platen'being inserted through the
portion 65 of the press bed 64 may be passed
threaded bore in the press base. Otherwise the '
through a correspondingly shaped opening 6"’
structure of Figure‘ 5 corresponds to that of Fig 70 in the bottom 66 of, the press head‘and then
turned by ninety degrees so that it will be sup-_
M Withregard to Figures 6 and 7, the press body
ported by the bottom 66. As will be seen from
shown, therein ‘is similar toithe press body of
Figure ‘11, the width of the'?ange portion 615 ‘is
ure2.
‘
>
.
.
.
ll'igul‘eZwith the exception ofvthe‘press bed.
smaller than the portion of the bottom.“ between
The; parts pf Figures? ‘and 7 ‘corresponding. to 75 the
.slottedportions 80 of the opening .6], LIn
2,403,822
' 7
order to prevent accidental turning movement of
the press bed 64, the press bed and press head
are connected with each other by bolts 68.
It
should be noted that the bolts 68 are merely
8
To guide the platen. 8|, gibs may be provided
between the said wall portion of the press body
and the guiding‘ surfaces of the platen in a man
ner described later in connection with Figures 21
to 24. These gibs, which directly engage the cir
locating means and may be replaced by a‘ key or Cl cular guiding surfaces of the platen, are adjust
the like since any pressure exerted by the press
able from the outside of the press body.
ram on the press bed is transferred from the press
To facilitate the machining operation of the
bed through the ?anged portion 65 to the bottom
press bodies shown in the various ?gures of the
66 of the press head. After the ?anged portion 65
drawings, the press body may, if desired, at its
is thus properly located on the bottom 66 of the 10 head portion be provided with a bore 88, through
press head 6|, segment pieces 19 are inserted
which the boring rod may be introduced or in
through the windows 23, 24, and are dropped be
which it may be guided. After the press body
tween the ?anged portions 65. The segment pieces
has been machined, the bore 88 is plugged, e. g.,
19 will then rest with their ends on the bottom 66
by a threaded bolt 89.
of the press head {3| since, as shown in Figure 11,
Referring now to Figure 20, the press body\
thesegment pieces 19 are longer than the width
shown therein differs from the ‘structure illus
of the slotted portion 96. The segment pieces 19
trated in the preceding ?gures in. that it has a
snugly ?t between the flanged portions 65 so that
solid ‘press bed; in other words, the'press head,
they are held in their position by the latter, Fig
the press base and press bed constitute a single
20
ure 11 shows only one of the pieces 19 assembled,
casting. In order to allow the machining of the
while the other slotted portion 89 is still to be
press cylinder, the press head is provided with a
covered by a segment piece.
bore 90, through which the bore rod may be in
The press bed 64 of the structure shown in
troduced and which is closed in any convenient
Figure 9 comprises, in addition to the ?anged por
e. g., by plug 9|, after the machining is
tion 65 and segment pieces 19, a plate 69 resting 25 manner,
completed. Aside from the press bed, the struc
with its shoulder 10 on the wall portion ‘II of a
ture of Figure 291s similar to that of Figures 6
cushioning > cylinder 12 having reciprocably
and 7, and windows are provided intermediate
mounted therein a cushioning piston ‘I3. The
the
press head and press bed through which the
cushioning cylinder 12 is connected with pipes
press ram and the press platen can be inserted
,14 and 15 adapted to supply pressure fluid to the 30 into
the press. The rim portion of the press bed
cushioning cylinder and to discharge it there
can be machined with the general machining
from. To prevent leakage from the cushioning
setup, while the remaining portion of the bed may
cylinder 12, a packing ring 16 is inserted in the
then be machined through the windows. How
wall portion ll of the cushioning cylinder 12 and
supports packing material 11 compressed by a 35 ever, instead of the last mentioned operation
through the windows, it may be preferable to pro
gland 18. It is, of course, understood that the
vide a recess 92 in the bed casting and, after
cushioning cylinder-piston-assembly ‘I2, 13, may
machining of the rim portion 93, to insert a
bolster plate 94 which may be introduced into
the
pressv through the windows thereof. The
40
instance the bed plate 69 may be provided with
shape of the bolster plate 94 is preferably similar
a flanged portion similar to the ?anged portion
to the bed member shown in Figure 19, which
65, while the segment pieces 19 will then supple
consists of a main member 50 and side members
ment the bed plate 69 as they. do now with the
52 attached to the main members by screws 53.
?anged portion 65. Aside from the features just
To reduce the weight of thepress, the press
referred to, the press of Figure ‘9 is similar to
bed is preferably ‘provided with cavities 95 com
that of the remaining embodiments so that the
municating with the recess 96 at the foot of the
various parts are designated with the same ref
press.
,
erence numerals as the corresponding parts in
Finally, referring to the embodiment shown in
the previously discussed embodiments.
While in the structures described so far the 50 Figures 21 to 24, also in this embodiment the
press head I and press base 2 are‘ integral
press platen is guided along the surfaces 25 of the
with each other. Similar to the embodiments of
windows 23 and 24 by means of the gibs 26 con
the previous ?gures, the ?uid tank 3 is mounted
nected to the press platen, the press platen 22
on the press head, and surge valves 1 are asso
may be replaced by a press platen 8!, as illus
ciated with the press head to control the addi
As
will
be
seen
from
the
said
6
trated in Figure 12.
tional supply of fluid from the tank to the cylin
Figure 12, the press platen 8| is guided, by means
der chamber 4, or the exhaust of ?uid from the
of its surfaces 82, along the surfaces 83 of the
cylinder chamber 4 to the tank 3. The press is
wall portion 84 of the casting comprising the
furthermore provided with a conduit 9 for supply
press head. In this instance the wall portion
ing
pressure fluid to actuate the press ram 6 which
84 comprises recesses 85 so that only a small sur
is operatively connected with the press platen 91.
face is to be machined for guiding the platen 81.
While in the previous ‘embodiments the press
This guiding arrangement for the press platen
platen is shown with two ?at and two curved
has the great advantage of further simplifying
sides, the press platen 91 is completely circular.
the machining of the press body, since the ma
The diameter of the press platen 91 is not greater
chining of the guiding surfaces for the platen can
than the opening 98 in the press base, which
without difficulties be effected with the same ma
opening is at least as large as the diameter of the
chining setup which is provided for boring the
ram 6. In this way the ram, as well as the platen,
press body. Any undesired rotation of the platen
may be introduced into the ‘press body through
8| may be prevented in this construction by stop
the opening 98. The opening 98 is closed by the
members 86 connected by screws 81 with the Wall
press bed 99, having a larger portion 100 and a
portion 84. If desired, the machining of the press
be omitted and the bed plate 69 rested directly
on the bottom 66 of the press head 6|. In this
body adjacent the press platen may be omitted,
in which case the inner diameter of the press
smaller portion NH, and resting with its larger
portion on segment pieces I62, I03, which engage
an annular ‘recess I04 in the lower wall portion
body adjacent the press platen should be larger
of the press body.' Two push back cylinders 3|
75
than the outer diameter of the guiding surfaces.
egos-e22,
,
,
jg
.
10
base, said body being hdllow and havingan open?
.
are 'vsupp'orted‘by and connectedwith thefpress
bed in a: mannerisimilar to thejpushubacklcylm
ing toward the outside l intermediate ,saidjpress
dersr3l inl‘the previously described embodiments. ' head and said press base, a pressplungerrecip
However," while in the embodiments ,hereinb'efore
, rocably mounted insaid press head, apressplaten
' . described the push back plunger merely engages ' operatively connectedwith said- press'plunger and
the press platen but’ is notv rigidly connected
reciprocable , in said cylindrical, body, and means
therewith, the push back plungers [05 in the __em,
associatedqwith 'saidy'platenfan‘d extending into
bodiment of Figures 21 to 2li_are.connected,<for
said
r 3. A
opening
press comprising
for guidinga said
hollow
platen.v
cylinder
’ H ' includ
instance, by screws, with thesplaten v911.3v Since
accidental turning movement of the press bed I00
is prevented by positioning screws I65, accidental
rotation'of the platen :91 cannot, occur- due to. the ,
:19
having an opening in its sidewall intermediate
the. press headand press base, ,apre'ssplunger
push back plungersconnected with ,theqpla-ten
movablein said press head, means for recipro
eating said press plunger, and talpres's; bed‘ having
andguided in the push backvcylinders 1.05; ,
‘The embodiment of Figures-21 to 21; further;
a plurality of segmental ring pqrtionsanda. cen
21,5‘ ~ tral
member {adapted
more differs from the-previously described? em
bodiments in that the platen 91" is guided by
segmental-shaped gibs I07 arranged in the bore
portion; Hit.
'ing a, press head and a press base, said cylinder 7
V‘ to be received and located
bylsaid ring portions.
f
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The gibs' I01- may be adjusted; and ’ ‘
positioned in a desired manner by means of corn
bined positioning and adjusting screwslt? which
_ 4;. A press body comprising a press head, a,
base integral. with said press head, and'a'press
bed surrounded by said. pressbase anddetachably
connected therewith, said press bed including a
are preferably arranged in'a, staggered manner,
as shown in Figure 21. ;The combined posi
tioning and adjusting screws do not form'a part
central cylindrical portion andimeans adapted to
be‘ interposed between saidbase ,andtsaidlcylin-r
drical portion forflocatingthe latter.
ofthe present invention and for-a more detailed ,
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'5] A’ hydraulic press comprising'incombinae
description thereof reference'may bel'had to U. S.
Patent No. 2,336,351, to Flowers issued December
7, 1943, It is of course understood that, instead
of the combined screws I09',‘any other position
ing, and adjusting screws may be provided.
ThelembodimentvshownsirrFigures 21 to 24 is
tion a cylindrical:'hollowbody; said body includé
ing a‘ press head. and a press ,b'asefintegral with
one another, an opening in the wall- portion». of
said cylindrical body intermediate said press head
and said press base,_ga press ram. reciprocably
mounted in said press head, means'for; supplying
of particular importance with’ regard to a simplié
?ed machining of the press body and the mem
?uid pressure to said-press ram, a; press; vbed
mounted in said press base and composed of ‘a
bers,associatedtherewith and' also enables a very
simpleassembly of the vario'usmembers. In this 9
connected thereto for supplementing theworking
connection‘it will be noted that all the machining
necessary for the press body can be e?ected in
one single machining setup, and the machining
operations for the ram, the platenand the ‘press
bed are merely turning operations. To assemble
central member and lateral members detachably I
area of said“centralmemben-each‘of said meme
bers being, adapted .to-be inserted; into said body
through the opening in the side wallthereof.v '
6. "In combination in a press, a press headin
cluding' a' cylinder, a press plunger reciprocably
thervarious members in the press body, the press
body is ?rst turned upsidev down as described in
mounted in said cylinder, a press platen opera
the previously mentioned embodiments, where;
upon the ram v6, the-packing l0,'the circular gland
drical .pressjbase, a hollow cylindrical body inte-v
M0, the platen, 97' and; the
having a window between, said head and‘ said
tively connected with said press plunger, a cylin
gral with said press head and said press base and
introducedthrough thebas'e'opening'98. . There; 1 ,
base, said window being slightly-widerth-an the
upon‘rtheisegmentsilM, I03 areiinserted so that
width of_ said platen,v a pressbedvsupported by I
saidpress base and including an element of a
they engage the annularrecessll'lld. Nowthe
press ‘is turned so that it will?bestanding on its
base and\ afterthe; bedv I00 is‘ properly located in
the segments I 02; I03‘ and spacedv from the platen
v91, the push'back cylinders and‘ pistons are as- ‘
sembled. The‘ gibsI-l 01 may then ‘be inserted
through the windows 23, '24 and, properly'posi
tioned and adjusted by the screws ")9 which ‘ex
tend through they wall “of the press body and can
be'operated; from the outside of the press body.
It will be understood that I desire to compre
hend within myinvention'such modi?cations as
shape similar to the‘ shape of said, platen, and
hydraulic‘ means supportedzbysaidfpress bed and
operatively connected with said-‘press platen 'for
actuatingthe same‘.
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vf7; A press comprising a hollow cylindrical press
body open at the lower end thereof, said body
including a press head and a press base integral
with one another and having windows-in thevwall
portion‘ of said body intermediate said press; head
and said press base, a press plunger reciprocably
mounted in a cylinder formed ‘by said press head, '
come- within ‘the scope of 1 the'cl'aims and the 60 a press- platen operatively connected‘ with said
inventionp
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press plunger, ,means for ' aligning said press
Having thus fully described my invention, what
I claim as newand ‘desire ‘to secure by Letters
Patent
is:
v
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“
‘
“
, 1.‘ A pressicomprising in combination a press 6.
head, a press base,ga cylinder integral with and
interconnecting said press head and press base,
and a multiple partpress bed mounted in said
press base and composed‘ of a central member
and means laterally connected thereto for sup- ,
plementing the supporting area of said central
member.
’
'7
r
2. In combination in a press, a single cast unit
including'a press head, a press base, and a cylin- ,
drical body interconnecting said head, andlsaid
platen with said press plunger-,said press platen
being. adapted to be‘ inserted into said body
through said windows, means for guiding said
platen in‘ said body, and apress bed stationarily
mounted in said press base.
,
'
8. A press comprising a hollow cylindrical body,
open atone end and closed at the other end and
having windows in its wall portions intermediate
said ends, a press ram reciprocably mounted in
said body adjacent the closed end thereof, a 'press
platen operatively connected with‘ said ram, a
>multiple part press bed adapted'to be mounted
in said body adjacent the open endthereof, the
fdimensions'of certain of said bed parts being such
2,403,822.
as to allow insertion thereof through the open
‘ end of said cylindrical body.
' 9. A press comprising a cylindrical body hav
ing integral therewith a cylindrical press head
and a cylindrical press base, a press cylinder
formed in said press head and having recipro
cably mounted therein a press plunger, means
for admitting pressure ?uid to said cylinder to
actuate said press plunger, a press bed surrounded
by and mounted in a recess in said press base, 10
a press platen operatively connected with said
12
said ?at portions of the bed and the adjacent
curved wall portions of the bore ‘in said base.
13. A press comprising a press head, a press
base integral with said press head and forming
a hollow body therewith, said body being closed
at its upper end and having an opening in the
bottom thereof, and a multi-part press bed some
of the parts of which are adapted to be inserted
from the outside through said opening in the base
bottom so as to cause said bottom-to support said
bed.
'
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14. A press body comprising a press head, an
press plunger and guided by wall portions of
open press base integral with said press head
said cylindrical body intermediate said press head
and de?ning therewith a hollow cylinder, a multi
and press'base, said wall portions de?ning win
part pressbed closing said open base, there being
dows having a width only slightly greater than 15 windows intermediate said press head and said
the width of said platen, so as just to allow in
press bed,’ said press head having a bore therein
sertion of said press platen therethrough with
of a diameter sufficient to' allow introduction of
the narrow side thereof, and hydraulic motor
a boring rod therethrough, and means for clos
means interposed between said press bed and said
bore.
‘ _
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press platen for effecting a retraction stroke 20 ing15.said
A press comprising in combination a press
thereof.
head, a press base having an opening therein
10. A press comprising a cylindrical press base, .
and being spaced from said head by a cylindrical
a cylindrical press head spaced from said press
wall portion integral with 'said head and said
base by curved wall portions integral with said
base and having a window therein, and a, multiple
press head and press base and de?ning windows 25 part press bed mounted in said press base, said
therebetween, said press head including a cylin
press bed including a main member with arcuate
der having a press plunger reciprocably mounted
endsand flat sides adapted to be assembled in
therein, said press base being open at its end and
said base through said opening, and also includ
being adapted to allow assembly of said press
ing segments adapted to beiassembled through
plunger through said opening, a press platen op 30 said windows and to supplement said main mem—
eratively connected with said press plunger and
ber to a circular bed.
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adapted to be inserted between said wall por
16. In combination in a press, a press cylinder,
tions through said windows, said platen having
a press ram movable in said cylinder, a press bed,
two longer flat sides and two smaller curved sides
a press base supporting said press bed and being
with the curvature thereof corresponding to the 35 integral with said press cylinder, said press base
inner contour of said wall portions, and means
and press cylinder de?ning a bore with a window
associated with said platen for guiding the latter
in its side wall, and a press platen movable in
between said wall portions.
I
and con?ned by said bore and having its periph
11. A press comprising a press base, a press
on two opposite'sides shaped in conformity
head spaced by cylindrical wall portions integral 40 cry
with the contour of said bore, said window hav
with said press head and press base and de?ning
ing a width greater than the width of said platen
windows therebetween, said press base having an
but less than the length of said platen.
opening therein adapted to be closed by a press
17. A press comprising in combination a press
bed portion, a press ram reciprocably mounted
cylinder, a ram movable in said cylinder, a bed,
in said press head and adapted to be assembled 45 a base supporting said bed and being integral
therein through said opening in the press base,
with said cylinder, said base and said cylinder
a press platen operatively connected with said
de?ning window portionsxtherebetween, a press
press ram and adapted to be inserted between
platen having curved portions at its periphery
said wall portions through the windows defined
and being operatively connected, with said ram,
thereby, means associated with said platen and
and " means detachably . connected with said
engaging said windows for guiding said platen,
platen and engaging guiding surfaces on said
and hydraulic motor means interposed between
windows for guiding said platen and preventing
said platen and said bed portion for actuating
said platen.
rotation thereof.
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18. A press comprising in combination a press
12. A press comprising a cylindrical hollow 55 head, a press base having an opening therein
body including a press head and press base in
and being spaced from said head by a cylindrical
tegral with one another, windows in the wall
wall portion integral withv said head and said
portions of said hollow body intermediate said
base and having a window therein, and a mul
press head and press base, a press plunger adapt
tiple press bed mounted in said press base, said
ed to be inserted into said press head through a 60 press bed including a cylindrical main member
cylindrical opening in said press base, a. press
and subsidiary ‘members engaging the wall of the
platen having two flat portions and two curved
press body and supporting said main member.
portions, the curvature of which corresponds to
19. A press comprising in combination a press
the inner contour of the wall portions between
head, a press base having an opening therein
65
said windows, said press platen being adapted
and being spaced from said head by a cylindrical
to be inserted through said windows, a press
wall portion integral with said head and said
bed having two flat portions and two curved por
base and having a window therein, a cylindrical
tions, the curvature of which corresponds to the
press bed provided with an annular ?ange, and
diameter of a bore in said press base, said diam
supporting members engaging an annular recess
eter being greater than the diameter of said 70 in said press body‘ and'supporting said ?ange
opening in said press base, while the distance
between said flat sides of said bed is less than
of said press bed.
7
20. In combination in a press, a press base
the width of said windows, and segments adapted
having a bore therethrough, a press head having
to be connected with said bed along the ?at por ‘(5 a plunger reciprocably mounted therein, ‘a cy
tions thereof so as to fill in the space between
‘2,403,822
is
lindrical body’ integral with and interconnecting
said press base and said head, anda press bed
mounted in said bore, said press bed’ comprising
a central ‘member mounted in said bore, and
means insertable through and mounted in said
bore and interposed between said base and said
central member for partially supporting the
latter.
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21. A press comprising a hollow cylindrical
body, said body including a press head and a "
press base supported from each other by wall
portions integra1 with both, a plurality of aper
tures in said cylindrical body, one of said aper
tures forming a bore through said press base .
and at least one other of said apertures form- "
ing a window in said wall portion, a press‘ram
reciprocably mountedin said press'head, a press
platen operativelyv connected. with said ram, a
press bed mounted in and supported by: said press
base, said ram, said platen and said bed being '
adapted to be inserted through said apertures
for assembly within said‘ cylindrical body.
22. A presslcomprising, in combination; a press
cylinder, a ram reciprocable in said cylinder,
a press bed, a press base supporting said bed,
in' said press‘lieadthrough which boring means
may be introduced, and a press bed ?tting ‘said
stepped opening and including inter?tting sector
shaped parts ‘resting upon the step of said
' opening.
-
28. A press comprisinga unitary frame having
an internal cylindrical surface closed at one end
to form a press cylinder and having openings in
its side walls de?ning guide edges parallel to the
direction‘of reciprocation of a piston in said cyl
inder, a platen having projecting portions slidably
?tting said cylindrical surface adjacent said edges,
and gills-attached to said edges and contacting
said platen to limit its movement to reciprocation
along said edges.
29. A press comprising a one piece body having
a bore extending from one endepart way there
through. the said’ bore having one diameter ad
jacent the open end of said body, a smaller di
ameter adjacent the closed end of said body and
a larger diameter intermediate the said ends,
_ window means in the wall of said body between
the ends thereof, a press plunger ,reciprocable in
the ‘smaller portion- of said bore, a press bed
mounted in the larger diameter portion of said
bore adjacent the open end thereof in order to
close the said open end, a press platen operatively
the direction of reciprocation of said ram, a .
connected with said press plunger, and means for
platen connected to ‘move with said ram and
guiding said press platen on the wall portions of
guided by and between said surfaces, and guide '30 said body adjacent said window means.
means attached to said portions and contacting
30. A press comprising a hollow cylindrical
said platen to limit the same to reciprocation
body, said body including a press head and a press
said base and cylinder being integrally connected
by portions having guide surfaces parallel to
along said surfaces.
7
‘ base supported in spaced relationship by a wall
23. In combination with a hollow press base,
integral with both, a plurality of apertures in said
having an internal shoulder, a bed comprising 35 body at‘ least one thereof forming a bore through
a plurality of ‘sector-shaped parts supported on
said shoulder, and jointly de?ning a central
opening, and a central base part ?tting said
opening and maintaining said sector-shaped
parts in position.
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24. In combination with a press base having a
said base and at least anotherv forming a window
‘in said wall, a, press ram reciprocably mounted in
said press head, a press platen connected to re
ciprocate with said ram, a multipart press bed
mounted in and at least partially supported by
said press base, the said ram, platen and bed being
cylindrical shouldered opening therein, a plu
rality of sector-shaped base parts, said parts
adapted for insertion through said apertures for
assembly within said cylindrical bore.
resting on the shoulder of said cylindrical open
ing and shaped to conjointly de?ne a central
shouldered opening, and a central member ?t
ting said central opening and supported upon
the shoulder thereof, all said parts having sub
stantially coplanar upper surfaces to de?ne a
press bed.
31. A press comprising a hollow cylindrical
body, said body including a press head and a press
base supported in spaced relationship by a wall
25. In combination with a press base having
a cylindrical shouldered opening therein, a plu
rality of sector-shaped. parts resting on the
shoulder of said opening throughout the com
plete circumference thereof, said parts being
shaped to conjointly form a central shouldered
cylindrical opening, and a center part ?tting
said center opening and resting on the shoulder
thereof, all said parts coacting to form a press
bed.
26. In a press, a single unitary casting ‘having
substantially cylindrical walls closed at one end
to form a press cylinder, and having its other
end open to form a press base, there being an
opening in said :walls between said head and
base, and a multi-part press bed supported with
in said base and including at least one part in
sertable through said press base and a second
part through said wall opening, said parts inter
?tting to form a rigid press bed.
27. A press body comprising a hollow cylinder
closed at one end to form a head and also having
a stepped opening at the other end forming a
base, there being openings in the side walls of
said cylinder between said ends and an opening
integral with both, a plurality of apertures in said
body at least one of which forms an axial bore
through said base and another of which forms
a window means in said wall, a press ram recip
rocably mounted in said press head, a press platen
connected to reciprocate with said ram, a press
bed mounted in and at least partially supported
by said press base, the said ram, platen and bed
being adapted for insertion through said aper
tures for asssembly within said cylindrical body, '
and other ram'means carried between said bed
and said platen for retracting the latter.
32. A press comprising a hollow cylindrical
body, said body including a press head and a press
base supported in spaced relationship by a wall
integral with both, a plurality of apertures in said
body at least one of which forms an axial bore
through said base and another of which forms a
window means in said wall, a press ram recip
rocably mounted in said press head, a press platen
connected to reciprocate with said ram, a press
bed mounted in and at least partially supported
by said press base, the said ram, platen and bed
being‘adapted for insertion through said aper
tures for assembly Within said cylindrical body,
means spaced about the said wall portion and in
engagement with said platen for guiding the
latter in non-rotative reciprocation within said
body, and other ram means supported by said bed
A.
2,403,822
and engaging said platen for retracting the latter
from said bed.
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33. A press comprising a hollow cylindrical
body, said body including a press head anda press
base supported in spaced relationship by wall
portions integral with both,‘ a plurality of aper
16
ram, a press bed mounted in and supported by
said press base, the said cram, platen and bed
being adapted for insertion through said aper
tures for assembly within said body, and a plu
rality of upward acting rams carried by said bed,
at least some of which act directly on said platen.
35. A press comprising a hollow cylindrical
body, said body including a ‘press head and a press
said base and at least another of which opens
base spaced apart by a, wall integral with both,
through said wall to form a window, a press ram
a plurality of apertures in said body one of which
10
reciprocably mounted in said head, a platen con
opens axially through said base and at least an
nected to be reciprocated by said ram, a press
other of which forms a window in said wall, a
bed mounted in and supported by said press base,
downward acting ram reciprocable in said head,
the said ram, platen and bed being adapted for
a press platen connected to be actuated by said
insertion through said apertures for assembly
ram, a press bed mounted in and supported by
within said cylindrical body, and ram means car 15 said press base, thesaid ram, platen and bed
tures in said body one of which opens through
ried by said bed and reciprocable toward and
away from the head end of said body.
34. A press comprising a hollow cylindrical
body, said body including a press head and a press
being adapted for insertion through said aper
tures for assembly within said body, means guid
ing said platen in, non-rotative reciprocation
within said body, and upward acting ram means
base spaced apart by a wall integral with both, 20 carried by said bed and at least a portion thereof
a plurality of apertures in said body one of which
acting on said platen in opposition to said down
opens axially through said base and at least an
ward acting ram.
other of which forms a. window in said wall, a
JOHAN A. MULLER.
downward acting ram reciprocable in said head,
a press platen connected to be actuated by said 25
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