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Патент USA US2404165

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‘July 16, 1946.-
‘
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F. s. CARVER
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PRESSIING APPARATUS‘
FiledMarch 4, 194;
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_'2,404,165 ‘
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2 Sheets-Shéet 1‘
V T156...
ilgi:
INVENTOR
FEED 8. CARVER
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BY
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TOR
Y
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July 16,1946.
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Ffs. QARVER '
’
~PRESSING
Filed-March 4, 1945.
‘PH-5*?
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APPARATUS
2,404,165,
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2 Sheets—Sheet 21..
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@43
INVENTOR
FRED $._ CARVEI?
_
Patented July 16, ‘1946
2,404,165
I ‘UNITED STATES PATENT OFFICE
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panama"
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‘ PRESSI'NG APPARATUS ‘
FredxSLLCarver,"shortliillslNpJa
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fnApp‘lica'tion March 4, 1943;,seria1 No..j47s,025_
V izfolaims. (01. 154-1)"
I: lThefpresentrinvention ‘relates Ito' pressing r ap- '
the-heated platens, and'thenused as handles-to,
paratus; ‘andfiskmoreparticularly directed toward
transfer the heated stack Iromybetween the hot
platens to insert‘it betweenthe cold platens'of
apparatusxlsuitable; foreexpeditiously producing.
tamper-proof identi?cationgcards.
v
U
the
_ The
press.
A accompanying
Such cards-have heretofore l been subjected to
aatreat'ment byiwhich each card ‘is placed between
twoasheetsl of. plastic.v material :and: subjected to
apparatusvrforcarrying out the process.»
heat;.‘an'dapressure;v and .then .,,to ascooling" opera- -
.“In
Figure
these-drawings:
1 is a perspective_;view
;
; oflthe , press
‘L
open
tiongsouthatl the threethicknesses. oft materialaare
laminated cintoia:iunitary?article in whichithe
card is ‘laminated between‘ and‘ embedded‘ inc-the
plastic sheets“; .1
c'
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'~
ai-Therm-akingiof. these; tamperlproof
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andqcarrying
., Fig; 1a is’ a,two
perspective
charges; view-of
I v. :: _a;charge
c- ,1 _ out
Ofithe lpl'esslig "‘
'
tiori‘cards'is‘lto‘a largerextent'a hand operation,
asitheyi must. be prepared; after; the‘ data, xsuchl'as
the:photographethelthum-b' print and the infor
‘drawings
.
_ illustrate
_.§ _. "the
‘ present methodinvolved and a suitable formfof '
z-‘i:
,
‘ .1152‘
a“ =5“ 93-?
: Figure 2515‘ a fragmentary perspective view'or
the charged pressyclosedy» j
;c-Figure' 3 ‘is a perspectivewiew- similargto-, Fig-_
15
ure-Z-showing theapplication of clamping means
mation; has‘ been collected and placed _on- the-card.
to the hot~charge;_~
.~
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A
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Figure 4‘is a‘ perspectiveview illustrating the
press-sin; open positionr?and-pthe heatedcharge
-r.=?Accordingv-tothe methods previously available
a number of-si‘sandwiches," leach composed of one
or more cards inserted-between two sheets of piss‘ 20 shiftedein .betwene the cold-platens; .
, 1 [Figure 5 isa rear elevational view ofqth press
ticématerial-and-apair of polished-plates and
opennandiillustratingythe wiring diagram for
blottersfis built~up into a~stack¢and this‘stack' '
placedbetweeni the platens ‘of an-3 hydraulic press;
heating: and; cooling the. - water connections;
The press is- closedilthe- platens electrically heated
; "Figure 6 is an enlarged sectional view through a
to = the “proper temperatures cforv the- necessary 26 charge-,1 also illustrating aqfhorml of clamp; ;
‘
v »_
I ‘Figure 7 is a horizontal sectional view taken on‘
time,randitlrleniv cooled by running water --through
them- vin order to: complete-themolding-Lon lam-'
the; line ‘ll of Figurerlhshowing the clamps in
inatin'gsoperation whereby-the‘ card is sealed into
D0$iti0n;~' w
the plasti'cz; Owing rtoithe length'o? time required
a >Figurev<8~ is a_side,_elevational view; with parts in
forifheating thepress and» thenicoolingv it, :the
operating/cycle; is. slow and :theproductio'm from
section: of a : modi?ed ‘form [of charging ,device;
and
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FigureQ-is
In Figure-l»
a thew-base
top planview
,ofct'he
of press
the same.‘
is; indicated
‘ v.
al'single
='-.:.;Th,e- ,presentpinventionu
opening presstlimited.
contemplates
,.
, 'theliprep
::
me. 'much- more expeditious manner, and accord
at l0,.-the columns at .l l", l I, the head of-thepress
at 12 and the ‘ram at l3.-_-_l, Thegram is underthe
ing to the present invention the press is provided
with a pair-of platens ‘to be heated and main;
operating handle and extension lever l5 and pres
aration'v ofL-the “tamper-proof “identification? cards
control-of : a hydraulica'l'ack ; indicated at l .4 with
tained hot so long asthe press is in operation and
sure
gaugerl?rf
l-
,
.
,
,
A‘
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\ The headlZ supports an upper platen 20.; The
another pair of platens adapted vtobe cooled and
kept cool so long» as; the press is in- operation. 4-0 columns all, ;H are provided‘ with stops _2l,~2l
shown more in detail in FigureThese stops
Then one stack can be subjected to heat and pres- >
are placed a su?icientwdistance below; the-head of
sure;awhilei'anotheristack is being cooled under
the press so that they may support a plate 22 and
pressure, the hot stack being shifted between
a platen 23, the latter being spaced a su?‘icient
pressings from the heated platens to place it be
tween the cooled platens and the cold one re 45 distance below the ?xed platen 20 to accept a
charge when the press is open. The plate 22
moved. In order to maintain the stackwhich has
also supports a platen 24, while' the ram I3 sup
been heated and placed under suflicient pressure
ports a platen 25. The platens 23 and ‘24 move
while the press is opened for transfer of this stack
up and down ,along the columns as a unit. , to the cold platens, clamps are preferably used
The upper two platens 20 and 23 are provided
/ on the hot stack so that the release of the pressure
with electric heaters, diagrammatically illustrated
between the platens will not relieve the stack
from pressure.
in Figure 5 at H, and one of them carries a ther
mal cut-out T arranged in series with all the
The pressure maintenance can
according to the present invention be readily ac
complished by suitable forms of clamping device
which can be secured to the stack while between
' heaters so that the maximum temperature of the ’
v
platens 20 and 23 is controlled by switch S. The
2,404,165
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4
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in Figures 8 and 9 the stack 30 is between two
lower platens 24 and 25 are provided with hose
connections 26, 21 and 28 whereby cooling water
pressure distributing plates 50, 50.
may be circulated through them.
plates is provided with screws 5| with a steep
One of these
A suitable number of sandwiches consisting of
card and plastic sheets with polished plates and
blotters is assembled in any convenient‘manner.
Such a stack, is diagrammatically illustrated at
pitch thread, forming studs which pass through
holes 52 in the other plate, and thumb; nuts 53
are tightened up when the charge is under pres
sure ‘so thatthe charge can then be removed
and replaced between the cold platens for quick
30 at the left of Figure l and in Figure 6. The
- stack is vplaced between two'heavy metal plates
chilling.
3|, 3| and when "cold the plates and interposed
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Since, it is obvious that 'the invention may be
stack can be easily handled together. When the
embodied in other forms and constructions with
press is open, as in Figure 1, an upper charge C .
in the scope of the claims, I wish it to be under
stood that the particular form shown is but one
comprising the sandwiches and plates is placed
of .Vthese "forms, and various modi?cations and
changes being possible, I do not otherwiselimit
myself in‘ any way with respect thereto.
betweenthe upper two heated platens. ' Asimilar
stack can'be placed as a dummy vbetweenthe
two lower platens for the ?rst pressing or it may
_ be omitted as desired.
Such ‘a stack is, however, l 7
closed bringing the parts to the position indicated
in Figure 2 and, while the, press is closed and the
upper 'charge'C being subjected to heat iam‘lpres
What is claimed is: ‘
V
'7 l. vA vertically acting press for carrying out a
hot’press‘ing operation and a. cold pressing opera
indicated in the drawings at C’. The press is then .
20 .tion at the same time and having a movable ram,
columns-a head :?xedly carried by the‘ columns,
an upper pair of platens, a lower pairof platens,
one of- one pair being ?xedly secured to the head
1 sureythe operator takes-‘two clamps, such'as in- .
‘?oated at 43'; 4i; and places them on the'yuppe‘r
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7 of the press, one of the other pair being carried
I The‘c‘lamps MS may take various forms and a’ 25 by the ram, the other'plat'ens being insulated
suitable; convenient style of'clamp is illustrated . from one another and isecured'together to move
as a unit, heating means carried vby the platens
in the drawings: It-isa simple, springclamp,
of’ one pair to maintain ‘them continuously heat
and in order to insure the ‘best alignment and
charge C.
centeringiof the clampsand the‘ pressure. plates
ed'toa predetermined ‘temperature, cooling. liquid
3|, 3|, the pressure platesmay be‘provided with
30 circulating means for continuously ‘chilling the
7 holes 4|, while‘ one 'nose of» each clamp is‘pro
vided with a pin 42 to ?t one of these‘ holes. The
clamps'are inserted in between the columns vI l, I
H in diagonal positions somewhat as illustrated
a. more clearly in Figure Vf‘When the two: clamps 35
. are placed on the upper'charge they will project
the lowermost position of the lower platen aidis
tance to permit thelinsertionand removal, of a.
second charge, the press being closable to simul:
' from the press as illustrated in Figures '3Iand 7.
When the clamps are vin this ‘position 'the‘release
of the pressure in the press does not wholly-re
lieve the'pres'sure between the pressure distribut
40 taneously- apply pressure to both charges.
hot pressing operation and a coldpressing voper
ation at the sametime and having a movable ram,
columns, ya head ?xedly carried by ‘the (columns,
be held under pressure and prevented from ex
panding, bubbling, and the'like,iwhich would?irn
'pair' the product. -'-The clampsare available 'as
chargev can" then be inserted between the cold
platens as indicated in Figure 4." A new charge
will then be placed between the upper platens, ‘the
Dressagain closedand held, closed while the-oper
,,
2.: A vertically acting press for carringout a
ing plates" 3|; 3|,‘th'ereforethe 'hot'fplastic can
handles to removefthe _>hot charge C, and the
other ‘pair; of platens, means 'for guiding said
unit for movement up and down, andfmeans lim
iting the lowering of the unit to such an» amount
as ‘to spacev the upper ;>-pair;v of platens apart to
permit the insertion and removal of aichargeand '
support the upper platen of- the second pair above '
45
two-pairs of-platens, :one of the platenslof-onetpair
being ?xedly secured-to thejhead Ofthe press,
one of the platens ofrthe other pair being carried
by the ram, the -' other platenswbeing insulated
from one another and secured ‘together? to move‘
ator can remove the clamps from the lower charge, 50 as a umt,.heating means camediby the. platens‘.
of onegpair- to maintain ,them-continuously'heated
attach themto the upper charge, attend tothe
preparation of "a- new, charge ‘to be‘ inserted in
’ to ‘a predetermined temperature, 'coolingéliquid '4
thelpress and. separate the-completed'work; =
.'*It'<will be'noted that according to the improved
other pair of platens, meanszforguiding'said. unit
operational procedure the upper two platens are
kept ‘not, whilev the lower 'two'platens are kept cold.
No time "is-lost'withvheating' and cooling‘ of the
platens and the output of the press'can'be about
four times the-output or a-similar press‘ having
only onepair of ‘platens which are alternately
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heated
and
cooled.
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circulating means for "continuouslyv'chilling ‘the
for movement up and down, and means limiting
the movement of the unitjtosuch an amount as
to space thepairs-of platensapart to'perm-it'the'
insertion and removali'of ‘a’ charge between'each‘
pair, the ‘press being closable ‘to simultaneously
apply ‘pressure, to’ both charges‘.
_
~ In‘the‘modi?ed form of construction illustrated
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FEEDS. heaven. 1
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