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Oct. 15, 1946.
J_ J_.KAPLAN
2,409,358
AUTOMATIC j RECORDING APPARATUS
Filed Sept. 12, 1942
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2 Sheets-Sheét 1
Oct. 15, 1946.
J. J. KAPLAN
2,409,358
AUTOMATIC RECORDING APPARATUS
Filed Sept. 12, 1942
.
2 Sheets-Sheet 2
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Patented 0a. 15, 1946
2,409,358
"UNITED STATES PATENT OFFICE
2,409,358
AUTOMATIC RECORDING APPARATUS
.Jacob J. Kaplan, Boston,: Mass.
Application'September 12, I942, ‘Serial No. 458116
15 Claims.
1
(01.’ 88-16)
2
This invention relates to an apparatus for au
more, and-means such as‘ an electric motor; spring
wound'motor, or the like "for winding up-the ex
tomatically ‘recording visual‘conditions at a'pre
determined ‘time, and is herein described ‘with
posed ?lm.
The shutter --is preferably operated by "elec
particular reference'to its‘ use for recording the
attendanceat a moving picture‘theater or other
trical means such as'a solenoid, and the-opera
tion of the shutter actuator is controlled by means
which includes a clock mechanism designed to
auditorium.
Exhibitors of motion ‘pictures ‘are often 11
cense'd *by the 'distributor‘to'exhibit pictures "for
effect the ' operation of’ the shutter actuator only
a ‘rental based on'a percentage of'the gross re
at predetermined‘intervals'during agiven period
ceiptsg-andincrder to determine‘the amount of 10 and aphotoelectric' device which is responsive to
such receipts the "distributor customarily ‘relies
the intensity of the incident'light so ‘as automati
upon-either a report‘ ma'de'by‘the ‘exhibitor un
checked'by any ‘outside agency, or a report made
cally'to‘ vary the exposure,. 1. e. either’the period
of exposure or the ~diaphragm opening, during
by ‘a representative 10f an‘agency independent of
the recording ‘interval.
the‘exhibitor, this representative being callecl'a
“checker.” Each .of these methods is generally
unsatisfactory, the .former being unfortunately
subject to manipulation, and 'fals'i‘?catiomand' the
lattergwhile less subject‘ to falsi?cation, is not
photographic record of "the ' auditorium is desir
able, it is to 'be understood that for the ‘purpose
of recording the attendance it is merely neces
whollyifree from this defect and is expensive in
'that'it'invo‘lves "a' substantial expenditure for vthe
compensation ‘and ‘expenses of ‘the checker.
The principal ‘object ‘of "the present‘invention
sary'that‘ the ‘photograph be su?iciently distinct
to produce relatively light spots representingLthe
faces "of those‘present.
is ' to ‘ provide an ‘ apparatus ‘for automatically re
cording'visual conditions .such'as vthe attend
Thus, 'a photographic
record may *be‘auto-mati'cally made'at any desired
time and with an‘exposure governed by ‘the in
tensity‘of the incident light. Although ‘a clear
‘
‘The operation'of 'the film winding mechanism
25
is vpreferably“controlled by the shutter‘actuator'so
anc'e ' at van ‘auditorium at one ‘or ‘more ' predeter
as "to operate after the closing ‘movement of the
shutter-to wind up the exposed ?lm and there
apparatus is ‘reliable ‘in ‘operation and ‘not ' sub
upon ‘present'an unexposed part of the .?lm for
ject totampering.
the succeedingrecord.
'A'further object‘is“to.provi'de an apparatusof 30 If ‘desire'd‘the photographic record .may also
the'a'bove type "inthe ‘form of a compact unit
include such ‘supplementary "data as the time
capable ‘of being readily .moved ‘from place .to
(day and hour) whenthe photograph was taken,
place and conveniently .set up ‘for ‘operation.
along with the name of thetheater, speci?ed date
mined times throughout a 'speci?e‘dperiod, which
Further ‘objects relate “to various "features of
of .exhibition, camera number, distributor,v etc.
construction‘and .will‘be apparent .from a con 35 To‘this ‘end'theca'mera may beprovided with a
sideration of " thesfollowing ‘description and the
compartment .into which a portion vof the '?lm
accompanying "drawings, wherein
projects, this compartment having a data ':card
andv time indicating details ‘operated by the clock
‘Fig. i11is"a.front"elevation “of ' an apparatus ‘con
structed'in ‘accordance with'theipresent inven
tion;
mechanism.
40
Fig. 2 is aside elevation .withparts'broken
away'and shown in ‘section;
In order-‘to secure the desired il
lumination' for recording the supplementary ‘data
there is provided an electric lamp which is lighted
momentarily only during the'interval whenthe
Fig. '3 ‘is .a schematic ‘view of the operative
shutter is open.
‘ I
parts of‘the" apparatus ; and
Although the different actuating mechanisms
‘Fig. 4 is ‘an enlarged "fragmentary .elevation 45 maybe operated byany suitable electric or me
showingthearrangement of the time fdialsan'd'
data card.
,
,
Inaccordance with thepresent inventionthe
recording apparatus comprises a camera
equippedvwith a suitable lens and lengthlo'f?lm
for taking one or more photographs ‘of an audi
torium-under varying light intensities, a. shutter
actuating mechanism capable of being operated
so-astopro'duCe an'exposure'which may be varied
froma fraction of‘a‘second to several seconds or '
chanical motors,'.the timing device, shutter‘ actu
ator and associated parts are preferably elec
trically operated, andialthough'the powersource
may be they usual light circuit to whichthe appa
ratus may be connected, the use of a battery
carried in a. compartment constituting apart of
the apparatus is preferred, so that the operation
may be independent of any ‘outside agency, thus
overcoming the possibility of tampering with
accessible electric connections. The clock mech
2,409,358
4
3
anism may also be electrically operated, although
which is normally held in retracted position by
I prefer to use a spring wound clock and thus
a tension spring 32.
avoid a constant drain on the battery.
pivotally connected with one arm of a lever 34
Where, as is preferred, the entire apparatus
is a self-contained unit comprising sealed com
which is pivoted at 35, and the other arm of the
lever is pivotally connected at 36 to a depending
One end of the plunger is
partments for the battery, actuating mechanisms,
actuator rod 38 (see also Fig. 1) engageable with
etc., it may readily be carried from place to place
the operating lever l2 of the shutter. The free
end of this lever arm also carries a contact 40
which is connected to power supply line b and
normally held spaced from its companion con
tact which is connected in series with lamp I8
and to the other power line a. When the sole
noid 35 is energized the plunger 3| is advanced
and causes the shutter lever to be depressed,
- thereby opening the shutter, and simultaneously
and conveniently mounted in operative position
with the timing mechanism set to effect opera
tion of the camera at predetermined intervals
during a speci?ed period. The camera may be
?lled with a suitable length of ?lm which, after
a series of exposures, may be removed for de
velopment and replaced by a new ?lm.
Referring to the drawings the embodiment
shown therein comprises a housing | provided
with spaced horizontal partitions 2 and 3 which
divide the interior into an upper recording com
partment 5, a lower battery compartment 6 and
an intermediate compartment 1. The front walls
closing contacts 45 and 4|, thereby closing the
circuit through the lamp l8. When the solenoid
30 is tie-energized the parts are restored to their
normal positions by spring- 32, thus permitting
the shutter to close and breaking the circuit
through the lamp H3.
The ?lm winding mechanism 24 comprises an
electric motor 45 connected through suitable
of the recording and intermediate compartments
are formed with central openings to accommo
date the lens of the camera and a photocell, here
gearing to a small shaft 1&6 which in turn is con
inafter more fully described. These compart
ments may be provided with doors or the like
by means of which access to their respective in
teriors may be had.
nected through suitable gearing to the project
ing end of the ?lm~winding spindle |5, it being
understood that the gear ratio is such that one
revolution of the shaft 46 is sufficient to rotate
spindle l5 so as to wind up the exposed ?lm and
The recording compartment is substantially
lightproof and has a built-in camera which may
be of conventional design and construction, hav
ing the usual lens ||, shutter and associated op
erating lever II’ which controls the period of
exposure of ?lm l4 which is mounted on rollers
and is suitably shielded in the customary man
ner. One of the ?lm-supporting rollers is mount
ed on a ?lm-winding spingle l5 which, when
rotated, winds up the ?lm so as to carry the
exposed portion from the exposure chamber I6
and simultaneously present an unexposed por
tion.
The major portion of the ?lm |4 extends
through the main exposure chamber 16 and a
partition I‘! de?nes a sub-chamber through
which only the lower marginal portion of the
?lm extends, as shown in Fig. 2. Mounted with
in the sub-chamber is an elongate electric lamp
I8, horizontally disposed in spaced parallel rela
tion with the lower mar-gin of ?lm l4. Associ
ated with the lamp I8 is a re?ector [9 which
may be integral with partition l1, and a screen
or ?lter 20 having optical characteristics suit~
able to produce the desired exposure on the ad
jacent area of ?lm M.
t is to be understood
that the partition ll thoroughly shields the lamp
l8 so that there is no leakage of light into the
main exposure chamber.
A generally L-shaped casing 2| is mounted on
the front and top walls of housing | and within
this casing a shutter-operating mechanism 22,
associated lamp switch 23 and ?lm-winding
mechanism 24 are suitably mounted. The oper
3 fl
bring in position for exposure a succeeding area
of the ?lm. The construction and arrangement
of parts are such that the time interval required
for one revolution of the shaft 46 is of the order
of one-half minute, although a greater or lesser
interval would be permissible, depending upon
the period of operation of the associated timer
25 and the clock mechanism 21.
The shaft 46 carries a disk 48 formed with a
notch 49 and a cam 55 formed with a rise ele
ment 5|. A lever 52, pivoted at 53, is formed
with a pawl-like end which is normally held in
notch 49 by a small tension spring 54, thus pro
viding in effect pawl and ratchet elements oper
ative normally to hold the disk and associated
5 parts locked against rotation. The lever arm
also carries a contact 55 which is connected to
supply line a through the motor 45 and normally
held spaced from its companion contact 56 which
is connected by line 0 to terminal B. The op
50 posite arm of lever 52 is operatively associated
with a pull bar 58 which is pivotally connected
at 59 with the plunger 3|. The pull bar 58 is
formed with a ratchet-like tooth 58 engageable
with the adjacent end of lever 52 and is normally
= held in operative position by a small tension
spring 6|. One end of a follower 62, slidably
mounted in guideways 63, is arranged so as nor
mally to engage the dwell surface of cam 50 and
its other end is engageable with the interme
60 diate portion of the pull bar 58. The construc
tion and arrangement of parts are such that
when the solenoid 38 is energized the plunger 3|
and pull bar 58 are advanced so that the tooth
6|) rides over and beyond the end of lever 52, the
ation of these mechanisms is under the conjoint
control of a timing mechanism 25, photoelectric
device 26 and clock mechanism 21, all of which
are mounted in the intermediate compartment 65 spring 6| being operative to hold the pull bar
in engagement with the end of lever 52; and when
1, as indicated in Fig. 2. The electrically oper
the solenoid is de-energized the plunger 3| and
ated elements of these mechanisms are connected
pull bar 58 are retracted by spring 32, thereby
to power supply lines a, b which lead to the bat
causing the tooth 6|] to pull the adjacent arm of
tery compartment 6 and in which is mounted
lever 52‘ downwardly and raise the opposite arm
either a storage battery or a plurality of dry
cells.
Referring to Fig. 3 which schematically illus
trates the aforementioned mechanisms, the shut
ter actuator 22 comprises a solenoid 30 asso
ciated with an elongate armature or plunger 3|
upwardly, thus disengaging its pawl-like end
from notch 49 and simultaneously closing the
circuit through motor 45 and contacts 55, 56,
whereupon the motor 45 operates to rotate shaft
75 46 in a counterclockwise direction.
As the shaft
5
wan-1d associated]partslrotate, "the‘~ri-sel’5~l ‘cream
50 Lthrows'the follower§62~1outward1y Iagainst ‘pull
rotation"'of-theidiskb and-11a ‘?xed ‘setting » of "the
plunger and associated contact ("84 ‘the circuit
through the shutter actuating solenoid 580 ‘may
bar158~s1i?iciently to1e'ffect’disengagement of ‘the
tooth ~80 from ‘the *end (‘of "lever 1'52, ~‘whereup‘on
be» ‘closed 'Yfor-a, i de?nite ‘interval.
lever g"52 "drops downwardly vIand'ri'des ‘on the 1pc
‘When‘the'sol'enoid H‘is energized the *plunger
riphery o'fi‘disk' 48,1in which‘ position‘itheilever =52
is effective ito lmaintain contacts »?55, F56 closed.
7 6 -‘ isr-‘pull-eddnwardly, 5 thus ‘swinging ‘the ‘free ‘end
of "the ‘lever 966 outwardly ‘to disengage ‘its end
from notch ‘65 ‘and simultaneously to close con
tacts 118,1‘! l?therebyi‘starting motor 84 which ro
I The shaft1 46 “continues-its: rotation» until‘ the notch
49 lisabout-i‘to ~ complete one revolution at'iwhich
time'l't‘h'ellen'd of lever1arm-52‘ drops-into the notch
49, thus *breaking Lthe circuit through contacts
H) tat‘esthe‘ ‘disk ‘D 'fin ' a,‘ ‘counterclockwise > ‘direction.
As'the'disk D rotates the-Ycontacts169f15 'disen- -
55,1 56 -''to "1 shut. off the - motor, “and Tfurther’reVoIu
tion of the. disk~48 is arrestedibyrthe engagement
of the! end1 of’ lever arml'with‘the ‘wall of~.notch-~'49,
thus terminating the -'?lm'-winding cycle.
"Theperiodlduring which ‘the (‘solenoid 30 is
energized end Phence ‘the ‘:‘period of exposure ‘is
controlled 1'by the timing ime'chanism v7.5 and" the
associated photoelectric device #28. “The "timing
mechanism comprises a rotatable - disk '1): 6f ' in
su-lating Lmaterial ‘which carries @a ‘contact ele
ment; 891cm lits periphery and :a segment-shaped
contact? plate 86 on fon-elfa'c'e. An: electric motor
64 iseonnected through suitableigearing soiasit'o
rotate-‘the: diskD in: a counterclockwise direction,
theidesign of the: gearinglbeingsuch' that it re
quiresiati least one minuteiforth'e disk-Dito' make
20
one - complete 5 revolution. ‘The :periphery i of the
disk 'D?isiformed with-a notch f651which1receives
thetpawl-likes end of alever': 66 . pivotallyl mounted _
at £81. 4A 1 small :tensi'on fispring L88 ractin'g Jon the
opposite‘ endioffthel lever "normally :h'olds‘ itstipawl
like: endainilockin'g engagement with‘ the notcht? 5,
thus ‘providing ‘in effect .pawl and iratchet ele
ments ?ada‘p‘ted lito voperate .in 1a lman'ner vsimilar
tolthe :Icorresponding telements .- of "the :?lm wind
ing mechanism. .The lever :arm'166 .ialso :carries
a iicontact ‘110 which is fconnected :to :line a
gage thus tbreakirig'the circuit through‘solenoid
l4jbut~as the end-of lever ‘66 rides on theperijnh
ery~of disk *D'contacts 10, ‘H are maintained
closed, ithus effecting continued rotation of :the
disk until'on'e complete‘revolution‘has' been made
at which'timethe end of 'the‘leverarm»"66='drops
into the notch 65 to break the oirouitithrough
contactsl?, ‘H and motor 64 ‘and arrest further
rotation *of‘dis‘k‘D. During rotation of ‘the v"disk
D‘ the brush “contact 184 engages “the'plate vcon
tact ‘86, thereby "establishing ‘a closed "circuit
through ' the "shutter actuating "solenoid 5/30 ‘for
an "interval'the duration of which 5is dependent
upon vthe ‘setting-‘of ‘the'plunger
l.
The‘ position ‘of theplunger ‘8| Iis controllediby
the photoelectric device 26 which "comprises *a
conventional ' electronic ‘control circuit including
the solenoid 80, aiphotocell‘88 "and, if-desired,
ampli?er'tubes‘mot shown). 'The'photocell 88
is‘pperatively‘positioned with respect‘ to thev open
infg'f89 (Fig. 1") ‘in vthe-front ‘wall of compartment
1 Tan'd is "connected in ‘the electronic ~Circuit‘to-re
spond to "changes in intensity ‘of ‘incident ‘light
so ‘as ‘correspondingly to ‘vary the "impedance of
the 'solenoidcircuit. Inasmuch \as' the design of
such ‘an clectronlc'control "circuit'is "well known
to those skilled in-‘thev art ‘further explanation is
through'ithe motor 84 and Inorm'ally‘held spaced
unnecessary.
from ‘Sits-‘companion contact ‘H “which is con 40
When the incidentlight is of maximum in
nected ‘by line "0 *with 'i-terminal ‘B. A ‘solenoid
tensity
(i.‘e.,“full illumination of the‘ auditorium),
"His-‘connected ‘with line- a- and: with ia?xe'dv con
thedmp'edance of‘the ‘control circuit is- minimum
tact ftiengageableiWith ‘contact :89. A plunger
and theplun‘gerBI‘is heldin its innermost‘posi
18 associated with solenoid 'IT4 has-a pin ‘and.
slot connection'l‘? with the 'leVer'TBB, the spring
68 being 1- e‘ffective normally to. hold "the plunger
in retractedflp‘osition.
'Mounted?above'the disk D is a ‘contact-ad
justing "device comprising va solenoid 801a‘nd'as
sociated ‘plunger 481 vmounted ‘for movement ‘in ~
ailine'parallel toithe'plane of theisuriace of disk
D and approximately radially ' thereof. The end
of plunger 8| carries a brush "contact ‘84 en
tion, "whereas. at minimumiintensity (i. "e., ‘when
theauditorium is as 'darkiasit usually‘becomes
‘during the ‘. normal operation, “as "distinguished
from‘ acomp'lete blackout) vthe impedance is ‘maxi
mum 'an’d’the plunger ‘8| ‘is ‘held in'its outermost
position. .‘Since‘the"photoelectric device‘26 is'at
all Itimes ~connected 'to" power ‘lines ‘a’ and *b, the
control ‘circuitmemains "operative as long as "the
supply‘lines‘areconnected to the battery and
hence‘ the timing-mechanism 25 and shutter "actu
ating mechanism 22 are always subject to'ithe
tact ‘84 is connected-in ‘series with ‘solenoid 530 > ; control of‘ photocell 88.
and linen, ‘ whereas ‘the contact plate ‘~86 ‘has ‘a
The clock mechanism 21 ‘which-has primary
common 'connection' with "contact ‘69 ‘ at'85 ‘which
control "over all the'above-‘describe’d mechanisms
in 'turn 'is ‘connected “with "line b. ‘The 'con
comprises a conventional spring wound -‘clock
struction and arrangement of parts are such
(preferably of'the ten or ?fteen day .ttypc) and
that with ‘the lever ‘66 in locking'position 'con- <
itsminute-han'd arbor 98 (rotating at ‘Ya*rate~"of
tacts’89 and ‘15 are in engagement, 'but'conta'cts
one "revolution‘per hour) carries '-a disk 8|, its
84 "and 86 ‘remain out of ‘engagement'until'mo
hour'hand ‘arbor-92 ‘(rotating at their-ate of one
tor"8‘4‘has”come ‘up"to :speed’so-‘as'to rotate'disk
revolution 'per twenty-four hours) carriesv'a'disk
D ‘at 'a substantially "uniform ‘rate. "Ilhe ar
93 and‘also'a dial ‘94 marked ‘off into'tWenty-four
rangement ‘of the *contact-adjusting "device ‘is
segments-numbered from I‘to mW/as-shown'in
suchlthat ‘the‘brus'h 'contact 84 ‘moves radially
Fig. 4. ‘An ‘arbor 95 is suitablygeared ‘to ‘the
of “the disk ‘D ‘so 'as“to engage "the vvcontact plate
arbor ‘92 so'as to make one 'complete'revolution
86 “along a circumferential‘line which'varies‘in
every‘thirty'days and ‘this arbor‘carries a disk
accordance‘with the‘ra'dial setting of the’plung
98 and-a dial "9‘! ‘which is marked on‘ intovthirty
er, . ‘and lime ' design * of ‘the vsolenoid ‘and ' plunger 70 segments numbered from 1| to 38. (Fig. 4). The
is "such that the‘position of the latter ‘corresponds
upper partslo‘f the‘dials '94, 91 extend throughian
with ‘the current ?owing through the solenoid.
opening at the rear end of partition .2 into'the
Hence,lby‘varying‘theiimpedance of the solenoid
sub-chamber in close juxtaposition :to the t?lm
circuitfthe .position of the “plunger may be ad
M, 'as shown in Fig. 2. In this position theup
justed correspondingly and‘lfor agivenspeedof 75 permost ' ‘numerals of the dials 1194 J and Q‘! are "in
gageable wwith'the-contact :plate 86. The con
2,409,358
S
direct line of light passing through the screen 20
the exhibition is to be repeated every three hours,
the last show commencing at 9:00 p. m. Under
these conditions the distributor of the motion pic
ture play would arrange contacts |0I in disk 96
rendered opaque except for rectangular openings
shown by the dotted lines 98 and 99 of Fig. 4, Cl to correspond with the dates 1, 2 and 3 on dial
91, removing all other contacts; contacts |0I in
these openings being coextensive with the num
disk 93 would be arranged to correspond with the
bered sections of the dials so as to con?ne the
hours from XII to XXII on dial 94, and all other
exposure of the ?lm to that of the area of the
contacts would be removed; and contacts |0I
openings 98 and 99. If desired, the screen 20
may be provided with a pointer p and lettering 10 would be arranged in disk 9| so as to close the
circuit for a period not exceeding one minute
indicating that the dial 94 shows the time of the
once during every hour commencing at about 1:00
day (exact hour and approximate minutes) and
p. m. and continuing through 10:00 p. m. Acthe dial 91 shows the day when the exposure
cordingly, on the ?rst, second and third days of
was made. In addition to these data the screen
the month between the hours of 12:00 noon and
20 may be provided with a translucent area to
11:00 p, m. the apparatus is set up to make photo
receive a replaceable data card I00 formed of
graphic records of the attendance once each hour.
transparent material with opaque lettering, as
In addition the data card I00 would be ?lled in
shown in Fig. 4.
appropriately and inserted in place.
Each of the disks of the clock may be formed
With the camera loaded with ?lm, the contacts
with a plurality of recesses or the like capable of 20
arranged as above described and the clock mech
receiving removable contacts I0| which may be
anism 21 wound up, the apparatus is then ready
adjusted in a manner hereinafter explained.
for installation in the auditorium of the theater,
The contacts |0| carried by the disk are con
it being understood that the aforementioned ad
nected to a ring or the like conductor I02 and
justments and the installation may be made sev
for each disk there is provided a leaf spring con
eral days prior to the date of the ?rst exhibition
tact I04 engageable with the contacts IN. The
since the clock mechanism is effective to main~
arrangement of the contacts IOI on disk 9| is
tain an open circuit until the speci?ed time is at
preferably such that in the course of normal ro
hand. At about 1:00 p. m. on the ?rst day the
tation of disk 9| the contacts IOI and I04 are
contacts WI and I04 of disks 9|, 93 and 9B estab
in engagement for a period of one minute or less,
lish a closed circuit through solenoid |I0 which
although if desired contacts |0| may be so ar
acts to close supply lines a, b for a period of one
ranged asto engage contact I04 at any desired
minute. Upon closing the switch N2 the circuit
interval or intervals of predetermined duration.
and in order to produce an indisputable record
the screen 20 may be masked off or otherwise
through solenoid ‘I4 is established whereupon
lever 66 operates to close the circuit through mo
tor 64 which rotates the timing disk D. Simul
taneously the circuit through photocell 88 is es
during one revolution; and likewise with the con
tablished and the solenoid 80 acts to position the
tacts |0| of disk 96 which may be arranged to
contact 84 in accordance with the intensity of
engage contact I04 throughout certain speci?ed
40 light on the photocell. As the timing device ro
days.
tates contacts 69 and 15 are broken, but the cir
The conductor I02 of disk 96 is connected to
cuit through motor 64 is maintained and when
terminal B and its spring contact I04 is connected
the motor is up to speed the contact plate 85
to conductor I02 of disk 93 and contact I04 of
is brought into engagement with contact 84 to
the latter is likewise connected to conductor I02
establish a closed circuit through solenoid 30.
of disk 9|. Contact I04 of disk 9| is connected
The solenoid 30 not only actuates the shutter
through a solenoid IIO with supply line a, thus
lever I2 and closes the circuit through lamp I8
connecting all contacts in series with solenoid
but also positions pull bar 58 to operate lever 52.
H0. The solenoid H0 is associated with an ar
Continuous rotation of the timing disk D breaks
mature or plunger III which is operatively con
contacts 86 and 84, thus deenergizing solenoid 30
nected with a normally open switch “2 out into
whereupon spring 32 retracts plunger 3|, thus
power line b on one side of terminal B. The
breaking the circuit through lamp I8, releasing
terminals A and B are directly connected with
the shutter lever I2 and closing the circuit
the battery (not shown) located in compart
through motor 45, By this time a photograph has
ment 6.
With the construction and arrangement above . been taken at the proper exposure and as the cir
cuit through motor 45 is now established, the disk
described the solenoid |I0 may be energized to
48 and cam 50 rotate and the exposed portion of,
close switch NZ only when contacts IOI and I04
the ?lm I4 is wound up and an unexposed por
of each of the disks 9|, 93 and 98 are closed and
tion presented for the next exposure. Rotation
the timing mechanism 25, shutter actuating
is continued until one revolution has been com
mechanism 22, ?lm-winding mechanism 24 and
pleted after which the disk 48 is locked by lever 52.
photoelectric device 2'6 can only operate when the
The cycles thus described take place in the in~
switch I|2 closes line b. By properly arranging
terval during which the switch I I2 remains closed,
the romavble contacts IBI of each of the disks
but if it should happen that the switch II2 open
9|, 93 and 96, the circuit through solenoid |I0
Similarly with disk 93 except that the contacts
are preferably arranged to engage the spring
contact I04 throughout a predetermined period
can be closed for one or more predetermined
periods during one or more selected hours
throughout one or more selected days during the
month and hence any desired number of photo
'" up prior to the expiration of the time necessary
for the timing disk D and control disk 48 to com
plete one revolution, the motors 45 and 64 will
nevertheless continue to operate since they are
not under the direct control of switch H2, and
graphic records may be automatically made at
any time during a speci?ed period, as explained 70 hence the parts are automatically restored to nor
mal position notwithstanding a shortened timing
in the following summary of operation.
interval.
Let it be assumed, for example, that a record
When the disk 9| breaks the contacts IOI, I04
of attendance at a theater is to be made on the
switch II2 opens lines a, b, and these lines re
first, second and third days of a certain month;
that the theater opens at twelve noon; and that 75 main open until contacts IOI, I04 of disk 9| again
2,499,358
closexthecircuit throughzsolenoidi H0 which, as
above pointed out,_occurs once eachhour, where
‘uponv the, operating‘ cycle: is repeated throughout
shutter, photoelectric means; controllingthe rel
ative position of'saidcontacts so asito-vary, the
period of 'energization of’ said'solenoid and there'
each of. the. selected periodsduring each of: the
by_ vary'the duration of exposure in" accordance
speci?ed'days. Eachoperating/cycle‘produces an U! with the intensity of ‘incident. light, power supply
exposure which, when developed, provides a rec
ord1of attendance, supplemented‘ by'the data; ap
lines connected with said solenoidand contacts, a
control switch for saidjpower supply lines; ai-clock
pearing, Orr card mo and. dials 94i arr-dial‘. The
mechanism for: operating? said switch‘ at: prede
record thus produced provides indisputable: proof
termined' times, and film winding~ mechanism:.op
of the month, day and‘hourwhen'the photograph 10 erative only after closing movement of saidshut
was'maderand by counting-the: attendance shown
ter‘ for-winding up theexposed. ?lm»
by thexphotograph anlaccuratel record isobtainedl
4. Recording apparatus; comprising a camera
If; it-be desired. to take; check recordschourly;
having‘ a shutter for controlling 'the'period of‘ex
rather'than a single record, the contacts; Hit? of:
posure, actuating means including a solenoid'for
disk 9| may be set accordingly,‘ or'thei contacts 15 opening "and'c'lo'sin'g said shutter, the‘ shutter. vbe
IIH may besuchlasto hold the circuit‘ through
ingrclosedf so long‘ as; the solenoid: remains d‘een
solenoid’ I I0’ closedfor a period? of: two minutes,
ergizedand being openrso long as the‘ solenoid is
in which case the-circuit‘ through solenoid“; is
energized, timing mechanism including relatively
re-established at the end" of the ?rst operating
movable contacts electrically: connected: with said
cycle and thus effective to' caus'era- repeat cycle.
solenoid for controlling the operation of: said
By properly arranging the contacts Iii-l of disks
shutter, power supply- lines'connected with said
911, 93::and 95', any numberxofrecordsrm'ay be made:
solenoid‘ and’ contacts, photoelectric meanscone
throughout any speci?ed‘ period‘;
nected to. said power supply'lin-es- and with said.v
While I’have shown anddescribed one desirable
timingmechanism for adiustingzsaid contacts so
embodiment of." the» invention it is to‘ be under
I j as to vary the period of energizati'oni-of' saidrsole
stood, that this? disclosure" is‘ for. the purpose of
noid'z' and‘ thereby‘ vary: the: duration‘ of’ shutter
illustrations and: that various? changes in: design
opening in' accordance with the intensity-0f inci
and ,arrangementlrof; parts, as: well' as the substitu
dent" light, acontrol switch for-said powerssupplyr
tion or. equivalent eliementsforthose. hereinzshown
lines, a'clock'mechanism for operatingsai‘di'switch
and described, may be? made‘ Without departing.
from;thespirit and scopeoithelinvention as set
forthin the appended claims;
IIclaimr
1'. Recording apparatus comprising a1 camera‘
having a shutter for controlling the period of
exposure, actuating‘ means‘including- a solenoid
for opening» and’ closing said shutter, theshutter
beingclosed so long as; the solenoid remains de
energized and being open so long' as the-solenoid!
is'energized, timing-mechanism including rela-»
tively/ movable contacts electrically connected‘
with said solenoid for controlling-the‘operation of‘
said shutter, photoelectric meanscontrolling the
at predeterminedr'times; and‘ ?lm winding'mec'haé
nism operative only after‘ closing‘ movement‘of
said shutter for winding'up the exposed film.’
5.v Recording apparatus'comprising: a housing
having ‘ partitions de?ning ‘a: recordingv compart-'1
‘ ment, a~battery compartment and-an interme
diate compartment having an’ opening; a camera‘
built‘ into‘ said recording compartment, said'cam
eraliaving a shutter for controlling the period‘cf
exposure, shutter actuating means mountedl'on
said housing adjacent tosaidi'shut'ter, saidshut
ter' actuating" means including: a. solenoid; the
shutter bein'gfclosed so' longias thevsolenoidire
mains‘ deenergi'zed' andv being‘ open-so ‘long asi'the
relative position of said contacts so as togvarythe
solenoidiis energized; timing-f mechanism locatedT
period of energization ofrsaidsolenoi-d andthereby,‘v 45 insaid intermediate. compartment, said timing
vary the duration of exposure in'accordance with
mechanism including ‘ adj usta'b'leg. relatively -m'ov-‘
the-intensity of incident light, power supply lines
able contacts electrically‘ connected with‘ said‘,
connected with said solenoidiandcontacts; a con;
solenoid.‘ and e?’ective to‘ - control? the ’ energization
of: th'e=so1'en0id; powersupply lines leading-from‘
clock mechanism ‘for operatingsaidfswit‘ch atlpre 50 said; battery compartment and connected: with‘
determined times‘ during a speci?ed-period.
said soienoid‘and" contacts; photoelectric‘means:
2. Recording apparatus comprising" a; camera‘
located in said‘ intermediate compartment ins
having‘a'v shutter for‘controlling'the period of ex‘,
light-receiving position with‘ respect tothe open-“
posure, actuating means including asolenoid for
ingv therein; said‘photoelect'ric means beingv con
opening and closingr‘said shutter, the: shutterrbe
nected with saidpower. supply lin'esand" with: said
i'ng ‘closed so longiasitheisolenoid; remains1deener.timing mechanism and’ beingoperativa to- adjust
gizedian'd' being op'enis'o' long the‘, the solenoid‘ is
said: contacts so" as to? vary the period of energi-~
energizedpower supply. lines connected with said
zation of saidisolenoidian'di-thereby: effect- a Varia-'
solenoid; photoelectric means‘. connected: to; said,
tion'in’ the durationiof shutter openingrin accord’
power supply, lines and operativeto: control the 60 ance with’ the intensitycofincident" light, andZ-a
duration of fthe-period of energization ofa'said sole‘
clock mechanism and‘v associated power‘ control
noid.‘ so as to" vary‘ the exposure in: accordance
switch‘located 'in' said intermediate compartment,
with the: intensity of incident. light; a: control
said control switch" being, connected with said’
switch, for-said, power supplylineaandi aiclock‘ ' power‘ supply lines and actuated bysaid clock
mechanism: for operating said switch at? prede 05 mechanism soas to"c10se"theicircuit;through-said
termined: times vduring. a. speci?edz period.
solenoid at a predeterminedtime;
3. Recording: apparatus comprising at camera
6-. Recording apparatus comprising a’ housing
having a; shutter'for. controlling the period of eX—1
having partitions de?ning a recording compart~
posure, actuating means including: aisolenoid for,
merit; a battery‘ compartment'and an interme
opening and closing said shutter, thecshutt'er. be
diate'compartment, acamera built into said rec-:
ing 'closedl'soilongas the solenoid? remains 'deener
owing-compartment, said camera having’ a- shut»troll switch" for said power ‘ supply' lines; and a1
gized: and being opensolong as the solenoideis
energized; timing. mechanism. includingrelatively
movable; contacts electrically; connected with :said.
solenoidi for controlling: the‘: operation; of said‘;
ter for'controlling-the period of exposure, shutter
actuatingfmeans ,m-ounted ' on said housing adJa
cent toz-said shutter; ,saidshutter actuating means
including, a solenoid; the: shutter being closed so
2,409,358
12
11
long as the solenoid remains deenergized and be
ing open so long as the solenoid is energized, tim
ing mechanism located in said intermediate com
partment, said timing mechanism including rel
atively movable contacts electrically connected
for opening and closing said shutter, the shutter
being closed so long as the solenoid remains de
energized and being open so long as the solenoid
is energized, an electric switch connected with
said lamp and operated by said actuating means
with said solenoid and photoelectric means for
controlling the position of said contacts in ac
cordance with the intensity of incident light so as
to control the energization of the solenoid and
to turn said lamp on and off in response to open
predetermined time.
for opening and closing said shutter, the shutter
ing and closing movement of said shutter, data
displaying means in said secondary chamber so
positioned with respect to the ?lm therein as to
be photographically recorded when said lamp is
thereby the duration of opening of said shutter,
turned on, and clock mechanism associated with
power supply lines leading from said battery com
said actuating means for effecting the operation
partment and connected with said solenoid and
of said actuating means to energize said solenoid
contacts, ?lm winding mechanism mounted on
and operate said switch at predetermined times
said housing and including a motor, a motor
during a speci?ed period.
switch connected to said power supply lines, con
9. Recording apparatus comprising a camera
nections between said motor switch and shutter
having a main chamber provided with a lens and
actuating mechanism effective to close said switch
associated shutter for controlling the period of
after closing movement of said shutter so as to
exposure, a secondary chamber juxtaposed to
wind up the exposed ?lm, and a cluock mechanism
and associated power control switch located in 20 said main chamber and having an electric lamp
therein, a single photographic ?lm having its
said intermediate compartment, said control
major portion within said main chamber and a
switch being connected with said power supply
minor portion extending into said secondary
lines and actuated by said clock mechanism so
chamber, actuating means including a solenoid
as to close the circuit through said solenoid at a
i
7. Recording apparatus comprising a housing
having partitions de?ning a recording compart
being closed so long as the solenoid remains de
energized and being open so long as the solenoid
is energized, an electric switch connected with
ment, a battery compartment and an intermediate
said lamp and operated by said actuating means
compartment having an opening, a camera built
into said recording compartment, said camera 30 to turn said lamp on and on‘ in response to open
ing and closing movement of said shutter, data
having a shutter for controlling the period of ex
displaying means in said secondary chamber so
posure, shutter actuating means mounted on said
positioned with respect to the ?lm therein as to
housing adjacent to said shutter, said shutter
be photographically recorded when said lamp is
actuating means including a solenoid, the shutter
turned on, clock means associated with said ac
being closed so long as the solenoid remains de
tuating means for effecting the operation of said
energized and being open so long as the solenoid
actuating means to energize said solenoid and
is energized, timing mechanism located in said in
termediate compartment, said timing mechanism
including adjustable, relatively movable contacts
operate said switch at predetermined times, and
photoelectric means associated with said actuat
electrically connected with said solenoid and 40 ing means so as to vary the period of energiza
tion of said solenoid and thereby vary the dura
effective to control the energization of the sole
tion of shutter opening in accordance with the
noid and thereby the duration of opening of said
intensity of incident light.
shutter, power supply lines leading from said
10. Recording apparatus comprising a camera
battery compartment and connected with said
solenoid and contacts, photoelectric means "" having a main chamber provided with a lens and
associated shutter for controlling the period of
located in said intermediate compartment in op
exposure, a secondary chamber juxtaposed to said
erative position with respect to the opening there
main chamber and having an electric lamp there
in, said photoelectric means being connected with
in, a single photographic ?lm having its major
said power supply lines and with said timing
mechanism and being operative to adjust said 50 portion within said main chamber and a minor
contacts so as to vary the period of energization
of said solenoid and thereby effect a variation
in the duration of shutter opening in accordance
with the intensity of incident light, ?lm winding
mechanism mounted on said housing and includ
ing a motor, a motor switch connected to said
power supply lines, connections between said
switch and shutter actuating mechanism eil'ec
tive to close said switch after closing movement of
portion extending into said secondary chamber,
actuating means including a solenoid for open
ing and closing said shutter, the shutter being
closed so long as the solenoid remains deener
gized and being open so long as the solenoid is
energized, an electric switch connected with said
lamp and operated by said actuating means to
turn said lamp on and off in response to open
and closing movement of said shutter, data-dis
said shutter so as to wind up the exposed ?lm, 60 playing means in said secondary chamber so posi
tioned with respect to the ?lm therein as to be
and a clock mechanism and associated power con
trol switch located in said intermediate compart
ment, said control switch being connected with
said power supply lines and actuated by said clock
mechanism so as to close the circuit through said
solenoid at a predetermined time.
8. Recording apparatus comprising a camera
having a main chamber provided with a lens and
photographically recorded when said lamp is
turned on, clock mechanism associated with said
actuating means for effecting the operation of
said actuating means to energize said solenoid and
associated shutter for controlling the period of
operate said switch at predetermined times, and
?lm winding mechanism operative only after
closing movement of said shutter for winding up
the exposed ?lm.
exposure, a secondary chamber juxtaposed to
said main chamber and having an electric lamp
11. Recording apparatus comprising a camera
having a main chamber provided with a lens and
therein, a single photographic ?lm. having its
major portion within said main chamber and a
associated shutter for controlling the period of
exposure, a secondary chamber juxtaposed to said
main chamber and having an electric lamp there
minor portion extending into said secondary
chamber, actuating means including a solenoid 75 in, a single photographic ?lm having its major
2,409,358
13
14
portion within said main chamber and a minor,
tioned with respect to the ?lm therein as to be
portion extending into said secondary chamber,
photographically recorded when said lamp is
actuating means including a solenoid for opening
turned on, and photoelectric means connected
with said power supply lines and timing mecha
and closing said shutter, the shutter being closed
nism, said photoelectric means being operative to
so long as the solenoid remains deenergized and
being open so long as the solenoid is energized,
an electric switch connected with said lamp and
adjust said contacts so as to vary the period of
energization of said solenoid and thereby effect
a variation in the duration of shutter opening
in accordance with the intensity of incident light.
operated by said actuating means to turn said
lamp on and off in response to opening and clos
14. Recording apparatus comprising a camera
ing movement of said shutter, data-displaying 10
having a main chamber provided with a lens and
means in said secondary chamber so positioned
associated shutter for controlling the period of
with respect to the ?lm therein as to be photo
exposure, a secondary chamber juxtaposed to said
graphically recorded when said lamp is turned
main chamber and having an electric lamp there
on, clock mechanism associated with said actuat
ing means for effecting the operation of said ac 15 in, a single photographic ?lm having its major
portion within said main chamber and a minor
tuating means to energize said solenoid and oper
- portion extending into said secondary chamber,
ate said switch at predetermined times, photo
actuating means including a solenoid for open
electric means associated with said actuating
ing and closing said shutter, the shutter being
means so as to vary the period of energization of
said solenoid and thereby vary the duration of 20 closed so long as the solenoid remains deener
gized and being open so long as the solenoid is
shutter opening in accordance with the intensity
' energized, timing mechanism including relatively
of incident light, and ?lm winding mechanism
movable contacts electrically connected with said
operative only after closing movement of said
solenoid for controlling the energization of said
shutter for winding up the exposed ?lm.
solenoid, power supply lines connected with said
12. Recording apparatus comprising a camera
contacts and solenoid, a light switch connecting
having a main chamber provided with a lens and
said lamp and power supply lines, connections be
associated shutter for controlling the period of
exposure, a secondary chamber juxtaposed to
said main chamber and having an electric lamp
tween said light switch and actuating means op
erativeto turn said lamp on and o? in response to
therein, a single photographic ?lm having its .
opening and closing movement of said shutter,
data-displaying means in said secondary cham
major portion within said main chamber and a
minor portion extending into said secondary
chamber, actuating means including a solenoid
ber so positioned with respect to the ?lm therein
as to be photographically recorded when said
lamp is turned on, a control switch for said power
for opening and closing said shutter, the shutter
being closed so long as the solenoid remains de
35
supply lines, clock mechanism for operating said
control switch at predetermined times, and ?lm
energized and being open so long as the solenoid
winding mechanism operative only after closing
is energized, timing mechanism including rela
movement of said shutter for winding up the
tively movable contacts electrically connected
exposed ?lm.
with said solenoid for controlling the energiza
15. Recording apparatus comprising a camera
tion of said solenoid, power supply lines con— 40
having a main chamber provided with a lens and
nected with said contacts and solenoid, a light
associated shutter for controlling the period of
switch connecting said lamp and power supply
exposure, a secondary chamber juxtaposed to said
lines, connections between said light switch and
main chamber and having an electric lamp there
actuating means operative to turn said lamp on
in, a single photographic ?lm having its major
and off in response to opening and closing move
portion within asid main chamber and a minor
ment of said shutter, data-displaying means in
portion extending into said secondary chamber,
said secondary chamber so positioned with re
actuating means including a solenoid for open
spect to the ?lm therein as to be photographically
ing and closing said shutter, the shutter being
recorded when said lamp is turned on, a control
switch for said power supply lines, and clock '
mechanism for operating said control switch
at predetermined times.
13. Recording apparatus comprising a camera
having a main chamber provided with a lens and
associated shutter for controlling the period of
exposure, a secondary chamber juxtaposed to said
main chamber and having an electric lamp there
in, a single photographic ?lm having its major
portion within said main chamber and a minor
portion extending into said secondary chamber,
closed so long as the solenoid remains deenergized
and being open so long as the solenoid is ener
gized, timing mechanism including adjustable,
relatively movable contacts electrically connected
with said solenoid for controlling the energiza
tion of asid solenoid, power supply lines connected
with said contacts and solenoid, a switch asso
ciated with said actuating means and connecting
said lamp and power lines so that said lamp is
turned on and oil in response to opening and
closing movements of said shutter, data-display
and closing said shutter, the shutter being closed
ing means in said secondary chamber so posi
tioned with respect to the ?lm therein as to be
so long as the solenoid remains deenergized and
being open so long as the solenoid is energized,
turned on, photoelectric means connected with
actuating means including a solenoid for opening
timing mechanism including adjustable and rel
atively movable contacts electrically connected
with said solenoid for controlling the energization
of said solenoid, power supply lines connected
with said contacts and solenoid, a switch asso
ciated with said actuating means and connect~
photographically recorded when said lamp is
said power supply lines and timing mechanism,
said photoelectric means being operative to adjust
said contacts so as to vary the period of energiza
tion of said solenoid and thereby effect a variation
in the duration of shutter opening in accordance
ing said lamp and power lines so that said lamp is
turned on and off in response to opening and
with the intensity of incident light, and ?lm wind
ing mechanism operative only after closing move
ment of said shutter for winding up the exposed
closing movements of said shutter, data-display
?lm.
ing means in said secondary chamber so posi
JACOB J. KAPLAN.
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