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Патент USA US3095514

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June 25, 1963
Filed Dec. 29, 1960
5 Sheets-Sheet 1
Edward Lynn
June 25, 1963
Filed Dec. 29, 1960
3 Sheets-Sheet 2
Edvl ard Lynn
June 25, 1963
Filed Dec. 29, 1960
3 Sheets-Sheet 3
Edward Lynn
nite ,
Patented June‘ 25, 1963
FIG. 2 is a perspective view showing the device as
Edward Lynn, Bristol, Pa., assignor to the United States
of America as represented by the Secretary of the Navy
Filed Dec. 29, 196i), Ser. No. 79,472
1 Claim. (Cl. 250—65)
(Granted under Title 35, U.S. Code (1952), sec. 266)
sembled and ready for operation.
‘FIG. 3 is a phantom-isometric view showing the feed
ing and take-up portions of the device in more detail.
|FIG. 4 is a schematic view of the threading system.
As shown in the illustrated embodiment of the in
vention, the duplicating machine 1 may be‘of any con
ventional type such as one having a housing, a tracking
roll assembly, and a re?ector assembly. The tracking
The invention described herein may be manufactured
and used by or for the Government of the United ‘States 10 roll assembly and the reflector assembly are not shown.
This is a typical duplicating machine which is produced
of America for governmental purposes without the pay
and purchased in the open market under the trade name
ment of any royalties thereon or therefor.
Thermo-‘Fax and per se these interior details of the
This invention relates to an apparatus and a method
Thermo-‘Fax duplicating machine are not a part of this
for reproducing information contained on large and un
unifor-m sheets of paper and is particularly directed to 15 invention.
The duplicating machine is placed upon a box-like
an improved method and apparatus for simultaneously
base member or support means 5 having a roof-portion
and continuously feeding both a long oscillogram, which
7 which is partially cut away to provide an enlarged
may vary in length from 3 to 60 feet and in width from
port 9 therein. The duplicating machine 1 is adapted to
2 to 12 inches, and a copy paper from a plurality of
rolls into a duplicating machine and thereafter winding 20 seat on roof-portion 7 and rigidly secured thereon by
any suitable means such as hasp-type fastener 11. A
both the oscillogram and copy' paper onto a plurality
slideable panel or door 13 is carried by the base mem
of rolls after their emergence from a duplicating machine.
ber 5 for covering and uncovering the port 9 therein. In
One of the devices currently being used to record
FIG. 1, the panel 13 carried by base member 5 has been
scienti?c measurements data is the oscillograph. The
wave forms or patterns produced by the oscillograph in 25 moved to the closed position and provides a receiving
table for a letter size sheet of paper emerging from the
response to changes in voltages are reproduced on long
duplicating machine 1. This enables the commercially
sheets of paper or the like to provide a permanent record.
available duplicating machine to be used for the repro
This permanent record is commonly called an oscillo
duction of conventional sized records, in addition to be
gram. These oscillograms usually contain several chan4
ing utilized for the duplication of relatively long records
nels of simultaneously recorded analogue data and they
in sheet form.
vary in length from 3 to 60 feet and in width from 2 to
12 inches; the length and width depending upon the type
1Base member 5 carries a removable frame member 15
of oscillogram being used and the various test conditions.
In order to satisfy speci?c test requirements and more
on one end thereof which provides a support means for
spools 17 and 19. ‘Frame member 15 is provided with
particularly to distribute information derived in any given 35 a pair of depending legs 21 and 23 which are adapted
test or tests, it frequently becomes necessary to dupli-’
cate the oscillograms produced therefrom.
In the reproducing of these oscillograms, it was a com
to be received in holes 25 and 27 in base member 5 (FIG.
1) for holding the frame member 15 in a predetermined
position on the base member. Frame member 15 holds
mon procedure to photograph them, in which photographs
two pins 29 and 31 therein for rotatably supporting spools
The spool 19 is held in posi
for the desired number of reproductions were accom 40 17 and 19 respectively.
plished by the various accepted and established prac
tion on the frame 15 by the bias of spring 18 which is
tices. Another system was to put the oscillogram through
a blueprinting machine, which proved to be a costly
and time consuming operation. These methods demanded
the installation of the reproducing equipment at a loca-V
tion remote from the site of the operation, involved pro
press-?tted against the said spool by the pin 29. Like
wise, the pin 31 contains a similar spring 20 (not shown)
which is press-?tted against the spool 17 by the pin 31.
hibitive costs and required a considerable amount of time
before reproducing the data.
Accordingly, it is an object of the instant invention
to provide a device and teach a method for reproducing
The pins 29 and 31 are capable of being moved axially
against the bias of their respective springs to permit re
moval and insertion of the spools.
The duplicating machine 1 carries a pair of opposed
ears or brackets 33 and 35, which rotatably support
idler rollers 37 and 39. Each idler roller 37 and 39
a means for reproducing an oscillogram right at the site
of the operation where the measurements are being re
in turn carries a pair of adjustable spacing collars 41-41
and 43—43, respectively. The duplicating machine 1
is also provided with a plurality of paper guides 45 ad
jacent the inlet slot 47 thereof. The guides 45 are spaced
apart at different'dimensions so as to be capable of re
Yet another object of the instant invention is to pro
vide an apparatus for simultaneously and continuously
feeding both a long oscillogram and copy sheet into a
in the outlet or exit chute 51 thereof.
an oscillogram both rapidly and accurately.
Another object of the instant invention is toprovide
ceiving paper of varying widths. The duplicating machine
1 is also provided with another rotatable idler roller 49
An oscillogram in roll form 53 and a roll of sensitized
gram and the copy sheet upon separate rollers when 60 copy paper 515 are carried on rotatable feed spools .17 and
duplicating machine and then winding both the oscillo
they exit from the duplicating machine.
1-9, respectively, and are simultaneously fed through the
It is a further object to provide apparatus in accord
ance with the foregoing objects that is simple in con
duplicating machine 1 provided with a heat lamp 57 and
a drive belt v59 (shown in the schematic diagram in FIG.
4). The’ oscillogram 53 ‘and copy sheet 55 are passedv
through the duplicating machine -1 and emerge from the
outlet 51. As shown in FIG. 3, the interior of box-like‘
support member '5 is adapted to rotatably receive the take
up spools 61 and ‘6'3 in addition to rotatably receiving idler
rollers 65 and 67. Take-up spools 61 and 63 are carried
on rotatable shafts 69‘ and 71, respectively, and a pair of
struction and easy to operate.
Various other objects and advantages will be apparent
from the following description of one embodiment of the
invention, and the novel features will be particularly
pointed out hereinafter in connection with the appended
In the accompanying drawing:
FIG. 1 is a perspective view showing the device dis
assembled and ready to be moved to a new location.
pulleys 73 and 75 are mounted on the free ends of the two
shafts. The pulleys 73 and 75 and in turn the take-up
spools 61 and 63‘ are driven by an electric motor 77 which
is drivingly connected to the pulleys 73 and 75 by a ten
tion. A pair of signal lamps 109 and 111 are energized
in response to the movement of switch v1011 to either one
sion spring type of belt 79. Another pulley 81 carried by
of its selected positions and they provide a visual indica
the armature shaft ‘33 of the motor 77 provides the driv
ing means for the tension spring belt 79‘. The tension
spring belt 79 is adjusted so that when the motor runs at
a rate above a predetermined limit, the spring belt will slip
tion of the position of the switch.
thereby disengaging itself from the pulleys 73‘ and 75.
This, in effect, provides a slip clutch arrangement in that
This serves as a re
minder to the operator of the duplicating machine that
it is either off or on. The oscillogram 53 is now ready to
be reproduced.
it will permit relative rotary movement between the arma
With the interlock switch 99 in the OFF position on the
duplicating machine 1, the power switch [101 is now moved
to the ON position to start movement of the drive belt
ture shaft of the motor 77 and the spools ‘61 and 63 in
the event the load exerted by the spools 61 and 63 exceeds
519 and thus start the passage of the oscillogram 53 and
copy paper 55 through the duplicating machine 1. When
a predetermined amount. The slip clutch arrangement is
necessary to prevent damage to the oscillogram and copy
paper being Wound on the take-up spools 61 and 63 and
approximately a two foot length of the oscillogram 53
and copy paper 55 have been discharged from the exit
chute 51 of the duplicating machine 1, the power switch
more particularly serves to keep the two sheets in a taut
is then moved to the OFF position to cease all opera
condition as they are being rolled onto the take-up spools
tion of the machine and thus stop the movement of the
without the danger of tearing them.
two sheets. The two sheets are now in a position to be
The motor 77 for driving the take-up spools 61 and 63
attached to the take-up‘ spool 61 and 63. Oscillogram
is supplied with power from the duplicating machine 1 by
sheet ‘53 is attached to take-up spool 61 by first being
a cable (not shown) extending between the machine 1 20 threaded over idler roller 65 and under idler roller 66. It
and the box-like support member 5. A coupling 62 per
is then hand wound on the spool 61 with the free end of
mits easy attachment and detachment of the cable from
the sheet 53 being ?rst inserted and anchored into a slot
the duplicating machine ‘1. A power cable 85 is con
(not shown) in the body portion of the spool 61. The
nected to the duplicating machine land is adapted to con
oscillogram '53 is hand wound on the spool until the por~
nect the machine to any suitable source of power.
tion thereof extending between the spool 61 and the exit
As best seen in FIG. 1, the rear end of the box-like sup
chute 51 is taut, the tautness of the sheet insuring a posi
port member is provided with a pair of storage compart
tive take-up between the spool 61 and the oscillogram
ments ‘8'7 and 89, which are normally closed by a pair of
being wound thereon. The sheet of copy paper is corre
hinged doors '91 and 93, respectively. Compartment S7
spondingly threaded over idler roller 67 and under idler
is adapted to house power cable ‘85 when the feed and
roller 68 and attached to take-up spool 63, the free end
take-up device is not in use, and compartment 89 is
of the copy sheet 55 also being anchored in a slot in the
adapted to store frame member 15 and the spools carried
body portion of the spool 63. The spool 63 is hand
wound until sheet 55 is taut. With both sheet attached
The operation of the invention can best be explained
to the take-up spools, weight .103 in the form of a plexi
with reference to FIGS. 2 through 4. The frame mem
glas sheet or the like is placed over both the oscillogram
ber i15 is ?rst placed in position on support member 5 and
sheet 53 and the copy paper sheet 55 above the guide
the spools 11.7 and 19‘ carrying the rolls of oscillogram 53
means 45 to insure a positive engagement between both
and sensitized copy paper 55, respectively, are then placed
the oscillogram and copy sheet prior to entry into the
in position on the pins 29 and 31. The oscillogram sheet
intake slot 47.
53 and copy paper sheet 55 are then unrolled by hand
The tension spring belt 79 will insure that the speed of
and threaded ‘under idler rollers 37 and 39‘, following
the take-up spools 61 and 63 are kept in harmony with
which they are together placed in the guide means 45.
the speed of the drive belt which is passing both the oscil
Each idler roller 37 and 39 in turn carries a pair of ad
logram 53 and copy paper 55 through the duplicating
justable spacing collars 41-41 and 43-43, respectively.
machine v1.
The spacing collars serve as guides for the copy paper
When the oscillogram sheet 53 has been completely
and the oscillogram sheet. This allows for the accom
unwound from spool 17 and completely wound on pick
modation of oscillogram having diiferent widths. The
spools 17 and 19 are constructed so as to be variable in
span and the pins 29 and 31, being spring biased, are
able to receive the different size oscillograms varying in
width from 2 to 12 inches. After the oscillogram and
copy sheet have ben placed in the guide means 45, both
sheets are then simultaneously inserted into the intake
slot 47 of the duplicating machine until both sheets are
in contact with the drive belt ‘59.
Referring to the schematic diagram of FIG. 4, the op
eration of the duplicating machine 1 is initiated and con
up spool 61, the machine 1 is stopped by ?rst moving the
interlock switch 99 to the OFF position. Immediately
thereafter, the sheet of copy paper 55 while moving is
severed or cut adjacent idler roller 39. If the reading on
the temperature gauge 107 is below a predetermined
limit, the power switch .101 is then moved to the OFF
position to thereby cease all operation of the machine and
the feed and pickup device. In the event the temperature
reading is above a predetermined limit, the power switch
is maintained in the ON position until suf?cient cooling
of the drive belt 59 has taken place.
trolled by a plurality of control elements carried by the
machine. An interlock switch 99 controls the energiza
After the reproduction of the oscillogram, the loaded
tion ‘and de-energization of the heat lamp 57 in the ma 60 spools 61 and 63‘ are removed from the support member
chine. A speed selector dial i105 enables the operator of
5 and empty spools are inserted in place thereof. The
the machine to vary the speed of the drive belt 59 driven
loaded oscillogram spool 61 may be transferred to the
by motor 60 and thereby vary the rate at which the oscil
position occupied by the now'empty oscillogram ‘feed
logram 53 and copy paper 55 pass through the machine.
spool ‘17 or a new oscillogram ‘feed spool may be placed
A temperature gauge .106 provides a visual indication of
in frame member 15. The oscillogram sheet 53 and
the temperature to which the oscillogram 53 and copy
paper are internally exposed. The power or main switch
101 serves to place the duplicating machine \1 in circuit
copy sheet 51 are now ready to be unwound and threaded
over idler rollers 37 and 39 to thereby start the reproduc
tion of another oscillogram.
It will be understood that various changes in the de
and OFF positions. When switch 101 is in the OFF posi~ 70
tails, materials and arrangements of parts which have
tion, the machine 1 and the motor 77 for the take-up
been herein described and illustrated in order to explain
spools are incapable of operation. When the switch 101
is moved to the ON position, all circuits are energized.
the nature of the invention, may be made by those skilled
However, the heat lamp circuit may be simultaneously de
in the art within the principle and scope of the invention
energized by moving interlock switch 99 to the OFF posi 75 as expressed in the appended claim.
with a source of power and is movable between the ON
What is claimed is:
A portable duplicating machine which may be used in
(m) a second pair of rollers suitably attached to the
base member, through which both the \osci-llogram and
the reproduction of oscillograms, the machine comprising
the copy paper are threaded, for maintaining tension
upon both the oscillograrn and copy paper as they
are being Wound upon the third and fourth spools
in combination:
(a) a base member having a cover which is partially
cutaway to provide an enlarged port therein;
(b) a frame removably fastened in an upright position
(n) a ?rst pulley connected to one end of the said
to the base member at its open end;
(c) a ?rst spool designed to hold an oscillogram;
(0) a second pulley connected to one end of the said
?rst shaft;
(d) a spring biased pin for rotatably securing the ?rst 10
spool to the frame;
(e) a second spool positioned on the frame above the
?rst spool and being adapted to receive a copy paper;
(1‘) a second spring biased pin for r-otatably securing the
second spool to the frame above the ?rst spool;
(g) a duplicating means located on the cover of the
said base member, said duplicating means being
adapted ‘for receiving the oscillogram and the copy
paper from their respective spools;
(h) a ?rst pair of rollers suitably attached to the said 20
cover through which both the oscillogram and the
copy paper are threaded for maintaining tension upon
both the oscillogram and copy paper whereby the
copy paper is pressed upon the oscillogram;
(i) a third spool placed on the bottom of the base 25
member for receiving the oscillogram as it exits from
(k) a fourth spool placed on the bottom of the base
member for receiving the copy paper as it exits from
the duplicating means;
(I) a second shaft passing through the fourth spool ‘for
rotatably attaching the fourth spool to the base 35
(q) an armature shaft attached to the motor and ex
tending therefrom;
(r) a third pulley joined to the end of the armature
shaft and
(s) a tension spring belt placed over the three pulleys,
said belt being positioned so that if the motor turns
above a predetermined speed the belt will stretch
and thereby slip causing it to disengage the ?rst and
second pulleys thereby coordinating the speed of the
receiving spool-s to the speed of the duplicating means
thereby serving to maintain both the oscillogram and
the copy paper in a taut condition thereby eliminating
the ‘danger of tearing either of them as they are rolled
onto the respective spools.
the duplicating means;
(i) a ?rst shaft passing through the third spool for
rotatably attaching the said third spool to the base
second shaft;
(p) ‘an electric motor attached to the base member;
References Cited in the ?le of this patent
Shoup ________________ __ Dec. 8,
St-raubel _____________ __ Apr. 17,
Sugannan ____________ __ Nov. 4,
O’Mara ______________ __ Mar. 1,
Ghinazzi _____________ __ Mar. 14,
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