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Патент USA US2111516

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March 15, 1938.
E_ Roux
2,111,516
CINETHEODOLITE
Filed May 29, 1936
5 Sheets-Sheet l
.7nvenf0r:
“M75;
Erwin Roux
Alia/‘nay
15, 1938.
E_ Roux
2,111,516
CINETHEODOLITE
Filed May 29, 1936
'5 Sheets-Sheet 2
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.7nven/or: Erwin Roux
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March 15, 1938.
2,111,516
E. ROUX
C INETHEODOLITE
Filed May 29, 1936
5 Sheets-Sheet 3
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March 15, 1938.
2,111,516
E. ROUX
CINETHEODOLITE
Filed May 29, 1936
5 Sheets-Sheet 4
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Ilium/on- Erw/h Roux
March 15, 1938.
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E_ Roux
2,111,516
CINETHEODOLITE
Filed May 29, 1936
5 Sheets-Sheet 5
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Patented Mar. 15, 1938
UNITED STATES PATENT OFFICE
2,111,516
omarnnonoura
Erwin Roux, Berlin-Zehlendorf-Kl. Machnow,
\
Germany
Applicatiltgi May 29, 1936, Serial No. 82,525
Germany May 29, 1935
13 Clainis.
‘(or 33-11)
' My invention relates to the problem of deter
mining by photogramrnetric and graphic methods
_
pair the correctness of the data obtained from
the respective coordinated photograms.
The principal object of this invention is to over
the airworthiness, speed, acceleration, sensitivity, come
many di?iculties offered by the problem
rigidity, responsiveness to ‘,distant control and underthe
consideration and to provide an improved 5
5 other aerodynamic and static propertiesof air
recording equipment of the type
craft, such as aeroplanes, gliders, Zeppelin air , photogrammetric
set forth which ensures strict synchronism of the
Vships, and kindred structures and of other objects exposures made in the cooperating cinetheodolite
rapidly moving in the air, including parachutes,
air torpedoes and the like, collectively hereinafter cameras.
vAnother object of the invention is to so re- 10
10 called aircraft. With this object in view it has design the cinetheodolite cameras of the equip
been proposed to take series of moving pictures of ment, to permit of a simultaneous change of the
the aircraft to be tested synchronically from two frequency of ‘the exposures made, say from 5 to 10
fixed stations on the ground by means of cine
cameras, structurallycombined with theodolites
l5 and known as cinetheodolites; .on the sensitized
."riilm's of which in addition to the motion pictures
of the aircrait'proper under test and aimed at
or 20 exposures per second, so as to be in accord
and to cope with variations of the speed of the 15
aeroplane under test.
-
A noteworthy feature connected with the
change of the exposure frequency, accomplished
.by the camera men, sections of the vernier scales _ according to this invention, consists therein, that
of the theodolites showing the respective sighting the said changes are executed almost instantane- 20
_
20‘ angles, altitude and azimuth,-designated- a and
h, 02 and‘hz, a3 and M, at and hi (readings)
on Fig.‘ 1 of the accompanying drawings, are're
corded on one and the same sections of the sensi
tized films asseen in Fig. 3.
25
Synchronism of exposures‘
A condition of paramount importance which is
' connected with the proper‘ taking of photogram
metric records of the kind described, and on which
ously without any noticeable interruption of the
recording operations.
“
-
Another object of the invention is to provide
means for making (‘single exposures synchroni-v
cally in the‘ cinetheodolite cameras of the equip- 25
ment instead of taking series of photograma-g
,'
Further objects will be made evident herein
after.
_
a
'
'
.
T The nature and scope of the invention are
brie?y outlined in the appended claims and will so
be more fully understood from the following speci-'
30 thecorrectness and accuracy of the ?gures, fac
tors and relations deduced largely depends, con
?cation taken together with the accompanying
sists therein, that in both cinetheodolites, desig
drawings, in which:
‘
‘
I
nated T and T2, which are cooperatively asso-'
Fig. 1 is a lay-out perspectively showing the
,
ciated with a central controlling station indicated whole scheme, namely the dispositi’i‘in of two 35
35 at S so as to present a unitary recording system, I 'cinetheodolite cameras at work and their co
I the exposures be made in strictest synchronism;
otherwise'the photograms, intended to be co
ordinated in pairs so as to be truly comple
mentary to each other at the subsequent trigo
40 nometric analysis and other measuring opera
tions, will notv sharply correspond to each other
and will not show the aircraft tested exactly in
one andthe same position. “
>
7 Practical tests, to which cinetheodolite record- '
4'5 ing equipment, manufactured by the inventor’s
employers and described for instance in their ,
British Patent 351,243 was subjected, have re
v’
vealed,’ that the cinetheodolite cameras worked
operative association with the central ‘controlling
station. It should be noted that, since it isdesir
able to be independent of the position. of the sun.
when making the records,~the equipment should '40
include three cinetheodolite‘cameras in all, which
are to be located at the comers of a preferably
rectangled triangle, of which the sides are from' ,
one to three kilometers in length.
I
-
Fig. 2 is a cross section through one of the 45
cinetheodolite cameras designed according to this
invention which shows diagrammatically and by
way of an example the arrangement and coop
erative association of its principal parts.
unsatisfactorily as to the exact synchronism of
Fig. 3 shows on an enlarged scale a section of 60
50 the exposures: It has been found that owing to - one of the ?lms, which was exposed'in one of the tremendous speed of modern army aeroplanes, the clnetheodolite cameras, designed according
‘ exceeding 690 kilometers per hour, differences as to this invention and is ready for use in the sub
small as one hundredth of. a second in the times sequent measuring operationsk ~ '
at which the exposures at the cooperating cine
‘Fig, i is a cross section showing the shutter I5
55 theodoiite cameras are made, will seriously im,
2,111,510
and ?lm feeding mechanism of the cinetheodolite
cameras on a larger scale.
-
Fig. 5 is a side'elevation showing details of the
film feed gear. -
Fig. 6 is a fragmentary .side elevation showing
the cooperation of the diaphragms of the primary
shutter of the cinetheodolite cameras.
Fig. 7 is a side elevation of the auxiliary shut-_
ter and its operating elements, partly in section.
10
Fig. 8 is a lay-out showing an electromagnetic
mechanism for controlling the operation of the
auxiliary shutter.
'
_
Fig. 9 is another lay-out diagrammatically
showing the different alternators and the switch
ing mechanism for operation ofthe cinetheodolite cameras.
.
Fig. 10 perspectively shows the key board of
the switchingv mechanism and a box wherein the
latter is enclosed.
20
Fig. 11 is a lay-out showing diagrammatically
the power plant re-designed for the purposes of
this invention.
'
The photogrammetric recording equipment, im
proved according to this invention, essentially
25 consists of cinetheodolite cameras T, T2 adapted
mechanism, the ?lm feeding mechanism of the
cinetheodolite cameras and their actuating
means have been re-designed, as described here
inafter:
. The shutter mechanism essentially consists of
a primary shutter for timing the exposures to
be made, comprising two rotary diaphragms ll,
35‘coaxially keyed to a shaft SI and a sleeve 2!
respectively and being rotated by gears 22 and
31 at different rates of speed; the respective rates
of ' speed are so proportioned as to represent
whole, integer, numbers, for instance 1:3, 1:4;
and a secondary shutter cooperatively associated
with the former for making the actual exposures.
The secondary shutter comprises a rotary dia 15
phragm 40‘ attached to a bevel gear 42,, meshing
with a second gear “I, an auxiliary shutter of
any convenient design preferably of the iris
diaphragm type, widely known ‘in the optical art
and diagrammatically indicated at 45, and dis 20
tant control means fonopening and closing said
auxiliary shutter 45 in both cameras at the op- '
erator’s discretion, which are described in detail
hereinafter. .
According to this invention, viz. in order to
ensure strict synchronism of the exposures, made
axes by attendants, whose duty it is to observe in speedy succession by the said diaphragms, two
the aeroplane under test in the air through tele
electric synchronous vmotors Md and M! are pro
. scopes,.diagrammatically indicated in Fig. l at ‘i vided in each camera, to which alternating cur
30 and 11 and cooperatively associated with the cam
rent is supplied from the power plant P, and of
eras, so as to keep the optical main axis of the which the primary motor Md operates the pri 30
cameras directed to the aeroplane to be photo
mary shutter, while the secondary motor Ml
graphed.
4'
operates separately diaphragm 4,0 of the sec
'A power plantP is provided for generating al
ondary shutter and the ?lm feeding mechanism.
ternating currents of speci?c frequencies required The
latter is diagrammatically indicated by a
for operating the cameras T, T2.
_ to be swung around their vertical and horizontal
A switch box Sin charge of another attendant
is provided for controlling the supply of electri
cal energy to the cameras T-T2 in order to con
~10 trol the exposures to be made.
.A system of multiple cables 0, ea, c; and c4
interconnect the cameras, power plant, switch
box, and a source of direct current, preferably a
slot wheel and pin gear 46, 41 operating shaft
II and accessorial elements coupled therewith
known in the art‘and not shown.
The Inventor's experiments have shown, that
exact synchronism of the exposures is not 40
achieved, if only one single electric motor is pro
vided in each camera for jointly operating both
the shutter and the ?lm feeding mechanism.
The lack of synchronism experienced in this case
Referring ‘to ‘Fig. 2 of the drawings, each of is due to the intermittent, non-uniform character
the cinetheodolite cameras of the equipment of the ?lm feed and probably also to accidental
comprises a camera casing 20 having‘an expo
changes in the frictional resistance offered by the
sure aperture 2| and being pivoted by means of
_ storage battery 13.
hollow trunnions 22, 22' in the casing 24 of the
' theodolite proper. The latter is rotatably mount
ed on a stand 25 and encloses the vernier scales
28: 21 of transparent material. By means of op
tical systems diagrammatically indicated by are
rows 28, 29, prisms, lenses, and electric lamps,
?lm feeding elements in each camera, which un
favorably react upon its driving motor and in
turn upon the shutter mechanism.
Chaiige of frequency of the exposures
It has further been found; that, when using
only one electric motor in each of the cinetheodo
lite cameras of the recording system it is prac- '
through the trunnions 22,:22' into the camera ' tically impossible to change at will the frequency
Cl cl the readings of the vernier scales are thrown
casing 20 and are, re-directed therein into the
optical ?eld of the exposure lens 23 indicated at
60.
0 and 0', so as to reach the sensitized ?lm F.
No claim is made to the optical systems known
in connection with cinetheodolite cameras.
Trigonometric, graphic, arithmetic and other
computing methods, not described hereinafter,
are known- in aeronautics and kindred arts, by
which from two series of photographic records,
of the type seen in Fig. 3, namely from the dif
ferences in the readings on the vernier scales-_
altitude and azimuth angles-synchronimlly pho
tographed on the ?lms concerned‘in two cin athe
odolite cameras, widely spaced from each other,
the speed, acceleration, sensitivity, rigidity, re
sponsiveness to distant control and other aero
dynamic and static properties of aircraft can be
.
75 .
determined. ‘.
,
With the objects outlined above the shutter
of the exposures without destroying the synchro
nism of the shutter operation or interrupting the
exposures altogether; moreover, speeding up or
retarding the ?lm feed in both cameras in serv
ice, so as to take a larger or smaller number of
pictures per second would require rather com
plicated speed change gears and electrical con
trolling devices diiiicult to supervise and operate.
With the object of enabling the superintending
operator of the cinetheodolite measuring station
to temporarily change the number of exposures
made per second, in compliance with changes of
speed of the aeroplane under observation, as for
instance in stunt ?ying, zooming, diving, looping, 70
sliding, spinning, the following apparatus and
?xtures for producing and I timely distributing
electric energy are. assembled in the power plant
P and in the switch box S of the eq'iipment,iand
are connected‘ by cables C and C4 with a source
2,111,516
of direct current B and the motors Md and M)‘
of the cinetheodolite cameras T, T2:
.(1) A set of three alternators A5, Al0, A20 for
selectively supplying alternating current of dif
5 ferent frequency, for instance, 5, 10, 20 cycles,
respectively, to-the ?lm feed motors Mf, M12 of
the cameras,
.
3
and negative terminals, and the motors Md and
M)‘ by a system of wires and multiple cables
C-Cl so as to cooperate in the following man
ner:
~
As long as none of the master keys K5, KIO, 5
K20, is depressed none'of the frequency selector
relays R5, RIO, R20, is excited, neither is the sec
(2)‘ An electric motor M, by which said alter-~ ondary relay RII excited, the ?lm feed motors
M)‘ of the cameras T, T2 being then connected‘
10 the recording operations through power trans~ with the phase control direct current circuit Pa, 10
with the result, that'their armatures are elec
mitting gears 5I, 52, 53, 54 of different ratio en
‘
closed in a gear box 50; the respective ratios of trically blocked in their zero position.
In the meantime the motors Md operating the
gearing representing whole, unbroken, numbers
primary shutters 30, 35 of the cameras T, T2 are
, and being proportionate to the respective fre
, nators arepermanently and jointly driven during
15 quencies of the alternators,
\.
,
(3) Another alternator A for feeding the pri
mary or shutter motors Md of the cameras, which
'may be driven to advantage by the same motor
M and gearings seen in Fig. l1,_operating the
20 said set of alternators, and
(,4) Switching means operable byJihe operator
and described hereinafter in detail for selectively
connecting any‘of the alternators A5, A"), A20
with the secondary or film feed motors M)‘, Mf2.
25
Phase control
running, being fed by the alternator A, but, no 15
exposures aremade because the path of the light
rays passing therethrough is blocked by the sec
ondary diaphraghrn shutter “and the auxiliary
shutter 45.
‘
-
a
On depressing master key K5 and thereby 0105- ‘20
mg switches 50 and GI both ‘the frequency se
lector relay R5 and the primary relay RI are
ready to be excited; the relay circuit RI however
is not closed until contact is made ‘at 55’ by the
rotary cam 56, that is, not untilalterhator A5 is’25'“
in its zerorposition.
After contact is made at 56’ both the primary
and secondary relays RI and R11 which are con
nectedin series are excited with the result, that
:11.) film feed motors Mf-‘are switched to operate on - the circuit of the frequency selector relay R5 is 30
a\. different frequency. The phase - controlling closed at 59 and line relay H5, actuated thereby,
” Phase controlling means,_ope'rating on direct‘
.current are provided according to this invention
which automatically come into action, when the
means simultaneously restore the armatures of
the'?lm feed motors M! of the cameras T, T2 to
their respective‘zero-positions so as to ensure co
is thrown into its operative position.
On depressing the master key K5 and thus caus
ing the ?lm feed-motors ,Mf of the equipment to
‘35, incidence of phase in‘ both motors and, in turn," . run on alternating current of 5 ,cycles frequency 35
and with coincidence‘of/phase the films are fed at.
‘true synchronism of the ?lm feed. '
Said phase controlling ‘means are cooperatively the rate of 5-’ feedings per second and also the
associated with the frequency selection switches diaphragm 40 of the cameras '1', T2 is rotated.
concerned under the operator's control and are
40 adapted to automatically shunt back the arma
- .tures of the ?lm feed ‘motors Mf during a short
The cameras T, T2 are nowready for making ex
posures as soon as the auxiliary shutter 45, .de- 40
scribed in detail hereinafter, is opened forlonger
interval to a direct current circuit called phase ' or shorter periods.
0n depressing the release key KR the master
control circuit‘and indicated at P'cin Fig. 9..“ , ’
_
Said phasecontrolling‘means include a pair of key K5 and its switch 5i are thrown-out of oper
4.3 rotary cams 56, 51 keyed to the shaft 55 of alter
ation. Independently thereof the"p_rimary and,45
nator A5 (Figs. 9 and 11), which runs‘ at- the low- , secondary relays RI and R11 ‘are not disconnected '
est sp'eed‘of the set. The projecting crest por
tions of said cams'are both so directed, as to coin-_
‘cide or register with the zero-position of the ar
50 mature of alterhator A5, and are cooperatively
until'their circuit is interrupted at 51', at the
moment, when shafte55 of alternator A5 passes
through its zero‘ position.‘
'
By depressing another of the master keys KII 50v
associated with a: pair of impulse sending switches, or K20 the same cycle of ' operations described
55' and 51'. The switches are connected through,
a system of wires with a'primary relay RI operg
above with reference to key K5 is repeated analo- '
gously.
‘
-_
.
_
ating ‘a primary contact'member 50; a secondary ' theThe
irisauxiliary
diaphragm
shutter
type,45,is which
‘operated
is preferably
by an elec-.
of 55
.75 relay RII, connected in series with (the primary
‘relay RI and operating a secondary contact mem
ber 50, a shunting switch U, and a frequency mas
ter switch H; a direct current main-switch 60,v
I. actuated at 65, by a spring loadedlslide ‘bar 66;
60 and frequency selecting switches BI, 52, 63 op
erable by master keys K5, KIO, K20, which en
gagersaid slide'bartli through-incline cam and
- pin gears 5a, 50.58,
The master keys are pro
vided with collars 8)‘ cooperating with catches 6d
65 hinged to a spring loaded‘ bar Si in such manner,
that on depressing. any one of, the master keys
so as to close the circuit/‘anti .or 52 or_ 53, it is
retained by its catch id in operative position, im
tromagnetically controlled mechanism, which in
the embodimentof the invention shown in ‘the
drawings by way of an‘ example includes a bell
crank lever'10 (Figs. 4 and '7) associated by a‘
pin projecting therefronr with Van ,excentric 00
notched disk ‘I2. The disk is journalled on the
shaft 3lfdrive'n by the shutter motor Md, and is
connected to the pin shaped projecting end of a
spring band coupling ‘I3, which frictionally en
gages shaft 3|, so as to rotate therewith.
05
A-vpair of cams ‘I4 and-“I6 is mounted on the
shaft 3|, the cam 14 being connectedto spring
band coupling ‘I3 engaging the \shaft 3| and the
til being- released by a release key KR, which excentric ‘I2, while cam 15 is keyed to shaft 3|, .
A three-armed lever is fulcrumed at 00, the 70 7
70 through lever 0g throws the [catches 5d out of
engagement“ Frequency selector relays R5, R10, 7 v, staggered upper ‘ends or pawls 84, 567 of which
are adapted to cooperate with- the cams ‘I4, ‘I5
R20'operate line relays H5, Hi0, H20. "
" v
The abovei’described,alternators, switches and
- relays are interconnected with the said source of
75 direct current, indicated in Fig;~ 9 by its positive
respectively in such manner, that pawl 8| can
be thrown out of engagement with cam ‘IQ only
when pawl 86 enters into the recessed portion 75
4.
2,111,010
of cam 15. The lower end 02 of the three armed
lever is loaded by a spring 03 and forms the ar
mature or an electromagnet 55.
~
each camera including a ?lm feeding mechanism
and a ?lm exposing mechanism, a synchronous
motor for said feeding mechanism, and a syn
A hooked catch member 54 is .fulcrumed at 00,
which is adapted to arrest cam 14 on having made
a half turn as indicated in Fig. 8 in dotted lines,
chronous motor for said exposing mechanism;
and to which a push bar 00 slotted at 09 is‘ hinged
of said cameras; and means connected to supply
engaging pawl 00.
The lower end 02 of catch
"is associated with an electromaznet 95.
A further electromagnet I05 is provided having
10
an armature I05’ with a bolt I02~attached there
to, the latter‘ being slidably ?tted within the
electromagnet I05 and adapted to cooperate with
the resilient contact member of a two-way switch
I05 and further with the lower section 02 of le
ver 00.
>
Exposure keys SE and SI operate switches 50'
and 50,‘ which are connected with the electro
magnets 55, 05, I05, the two-way switch I06 and
means connected to supply alternating current of
a predetermined frequency to all feeding motors
alternating current of an integer multiple of said
predetermined frequency to all exposing motors
of said cameras.
l0
2. In a photogrammetric recording system a
plurality of recording.m0ving picture cameras.
each camera including a ?lm feeding mechanism _
and a ?lm exposing mechanism, a. synchronous
motor for said feeding mechanism, and a syn 15
chronous motor for said exposing mechanism; a
?rst generator connected to supply alternating
current to all feeding motors of said cameras;
a second generator connected to supply alter
nating current to all exposing motors; a common 20
of wires.
_
prime mover; and motion transmission means
The operation of the electromagnetic device for between said generators and said prime mover,
actuating the auxiliary shutter 05 is as follows: the ratio of transmission being such as to move
On depressing exposure key SE and closing the ‘ said second generator to produce an alternating
direct current circuit at 50", the electromagnet 55 current of a frequency which is an integer
is excited, catch member 94 is thereby swung into multiple of the frequency of said ?rst generator. ,25
its operative position, shown in dotted linesin
v,3. In a photogrammetric recording system a
Fig. 8, while pawl 04 is thrown out of engagement , plurality of recording moving picture cameras,
with cam 14, by push bar 00. Thus cam ‘H on each camera including a ?lm feeding mechanism
having made only a half turn is arrested and inci
and a ?lm exposing mechanism, a synchronous 30
dentally the 'excentric ‘l2 and the lever 10 are motor for said feeding mechanism, and a syn
stopped; the auxiliary iris shutter 45, which was chronous motor for said exposing mechanism; a
opened during said half turn of cam 14 will there
?rst source connected to supply alternating cur
by be kept in opened condition and series of pic
rent of a predetermined frequency to all expos
tures are then taken ‘in speedy succession con
ing motors of said cameras; a plurality of sec
sistent with the respective speed of the ?lm feed ond sources of alternating current of integer
the source of direct current B through a system
motors MI running on alternating current of 5,
10 or 20 cycles.
On depressing exposure key SI and closing the
40 direct .current circuit at 50 electromagnet 85 is
excited and pawl 04 is thrown out of engagement
with cam 14. By the succeeding cooperation of
lever 02, bolt I02, electromagnet I05 and the two
way switch’ I05, electromagnet 05 is disconnected
and the three armed lever 00 is returned by spring
03 into its operative position, in which cam ‘I4 is
arrested having made a full 360° turn. In this
manner single exposures can be madein suitable
intervals at the operator’s option.
Various changes and modi?cations may be con
veniently made in the structural details of the
mechanism and expedients assembled for coop
'eration in the improved theodolite recording
equipment described, without substantially de
parting from the spirit and the salient ideas of
this invention.
‘
For instance the motor M driving jointly the
alternators A, A5,.Aw and A20 may be cooper
atively associated to advantage with one of those
automatic, highly sensitive speed controlling at
tachments known in the electrical ?eld as tuning
fork regulators, symbolically indicated at Tu in
Fig. 11.
multiples of the predetermined frequency of said
?rst source; and means for interchangeably con
necting the feeding motors of all of ‘said cameras
to one of said second sources.
40
4. In a photogrammetric recording system a
plurality of recording moving picture cameras,
each camera including a ?lm feeding mechanism
and a ?lm exposing mechanism, a synchronous
motor for said feeding mechanism, and a syne
chronous motor for said exposing mechanism; a
first generator connected to supply alternating
current to'all exposing motors of said cameras:
a plurality of second generators; a common prime
mover; motion .transmission means between said »
prime mover and said ?rst and second gener
ators the ratio of transmission being such as to
move said second generators to produce alternat
ing currents of a frequency which is an integer ,
multiple of the frequency of said ?rst generator; 55
and means for interchangeably connecting the
feeding motors of all of said cameras to one of
said second generators.
5. In a photogrammetric recording system‘a
plurality of recording moving picture cameras,
each camera including a ?lm feeding mechanism
and a ?lm exposing mechanism; a synchronous
motor for said feeding mechanism, and a syn
Slide bar 55 may be elongatedto advantage ' chronous motor for said exposing mechanism: 'a
first source connected to supply alternating cur
so as to engage and operate switch 50', inde
rent of a predetermined frequency to all expos
pendently of exposure key SE. In this case se_-‘ ing motors; a second source of alternating cur
ries of pictures are taken whenever one of the rent; a‘source of direct current; and means for
switches 6t, 52, 53 operated by the master keys alternatively connecting said feeding motors to '
K5, KIO, K20, is in action and the ?lm feed mo
said source of direct current, whereby all motors 70
tors M! of the cameras are connectedwith one are moved into phase, and to said second source
of the alternators A5, AIO, ‘A20.
‘
' of alternating current, whereby said inotors are
and provided with an extension indicated at 55’,
What I claim is:
moved synchronously, maintaining their correctv
1. In a photogrammetric recording ‘system a
phase relation.
plurality of recording moving picture cameras,
,
6. In a photogrammetric recording system a 75
I
7
5
2,111,516
plurality of recording moving picture cameras; ing connected to supply said primary relay with
each camera including a ?lm feeding mechanism
and a ?lm exposing mechanism; a synchronous
energizing current over one of its said make
contacts.
motor for said feeding mechanism, and a syn- I
chronous motor for said exposing mechanism; a
?rst source connected to supply alternating cur
rent of a predetermined frequency to all expos
ing motors; a plurality of second sources of alter
nating current of integer multiples of said pre
1.0
15
determined frequency; a source of direct current;
I
9. A photogrammetric moving picture camera
comprlsing,'in combination, a support, a camera 5
casing having an exposure aperture and mounted
on said support for movement about two axes
perpendicular to each other; means for moving
sensitized ?lm past said exposure aperture, said >
and means for alternatively connecting said feed
ing motors to said sourceof direct current, for
means including a ?rst synchronous motor; a re- 10
volving ?rst shutter member having an aperture
and arranged p to intercept and open the path
phase adjustment, and to one of said second
sources of alternating current, for synchronous
of light from said exposure aperture to said ?rm;
operation.
_
.
.
a second synchronous motor connected to actuate
said ?rst shutter member‘; a second revolving 15
7. In, a photogrammetric recording system a ' shutter member having an aperture and arranged
to intercept and open the path of light from said
' plurality of recording moving picture cameras,
each camera including a. ?lm feeding mechanism
and a ?lm exposing mechanism; a synchronous
20 motor for said feeding mechanism, and a syn
chronous motor for said exposing mechanism; a
?rst source connected 'to supply alternating cur
rent of a predetermined frequency to all expos
ing motors; a plurality of second sources of alter
25 nating current of integer multiples of said pre
determined frequency; a source of direct cur
rent; a selector switch for each of said second
sources of current;,ga common contact operable
by each of said selector switches; a. secondary
30 relay arranged alternatively to connect said feed
ing motors to said source of direct current and to
said second sources of alternating current, re
spectively; a line, relay associated to each of said
second sources and arranged to connect and dis
connect the respective source to said secondary
exposure aperture to said ?lm, said second mem~=
her being connected to be actuated by said sec,»
ond motor at a rate which is an integer multiple 20
of the rate of said ?rst member; a third'revolving
shutter member having an aperture and arranged
to intercept and open the path of light from said
exposure aperture to said ?lm, said third member
being connected to be actuated by said ?rst mo 25
tor; and optical means for projecting into thepath
‘of light an image indicating the position of the
1 camera relatively to said support.
10. In a photogrammetric ‘moving picture
camera the combination with a camera casing 30
__having an exposure aperture and' means for
moving sensitized ?lm past said aperture said
means including a ?rst synchronous motor; of,
a revolving ?rst shutter‘ membenhavingan vaper
and arranged to intercept and open the path 35
.relay, each line relay being jointly controlled by ‘yture
"of
light
from said exposure aperture to said
therespective of said selector switches and said
secondary relay; a make contact connected to be ?lm; a second synchronous motor connected to
periodically operated in response to the frequency it actuate said ?rst shutter member; a second re->
of one of said secondary sources; and a primary
volving shutter member having an aperture and 40
relay connected to control said secondary relay,
said primary relay being jointly controlled by
arranged to intercept and open'_ the path of light
ing motors; a. plurality of second sources of ‘alter
nating current of integer multiples of said pre
ber during a predeterminable periodof exposure
from said exposure apert e .to said ?lm, said
Q second member being connected to'be actuated
said common contact and said make contact.
8. In a photogrammetric-recording system a by said second motor at a rate which is an in
‘plurality
of recording moving picture cameras, I teger multiple of the rate of said ?rst member; 45
45
each camera including a ?lm feeding, mechanism a‘ third revolving shutter member having‘ an
and a ?lm exposing mechanism; a synchronous aperture and arranged to intercept and‘ open the
motor- for said feeding mechanism, and a syn- path of light from said exposure aperture to said
chronous motor for said exposing mechanism; a ?lm, said third‘member being‘ connected to be
actuated by said ?rst motor; whereby a path 50
50 ?rst source connected to supply alternating cur
of light is‘ prepared by said ?rst and second mem
rent of a predetermined frequency to all expos
' determined frequency; a source of direct current;
55 a selector switch for each of said second sources
of current; a common contact operable by each
_ of said selector switches: a secondary'relay ar
ranged alternatively to connect said feeding mo
tors to said source of direct current and to said
second sources of alternating current} respective
ly; a line relay associated to each of said second
sources and arranged to connect and disconnect
while the number of exposures‘ per time unit is
controllable by the rate of said ?rst motor.
11. In a _ photogrammetric moving picture 55
camera the combination with a camera casing
having‘ an exposure aperture and means for
moving sensitized ?lm past said aperture said
means including a ?rst synchronous. motor; of
revolving ?rst shutter disk having an aperture1 60
and arranged to intercept~and open the path
of light from said. exposure aperture to said ?lm;
the'respective source to said“ secondary 'reiay, .a second synchronous motor connected to actu
each line relay being jointly controlled bythe ate said ?rst shutter disk; 9. second revolving
05 respective of said‘selector switches and said sec
ondary relay; a make contact connected to
be periodically operated in response to the fre
quency of one of said secondary sources; a pri
mary relay having make contacts and being
70 connected to control said secondary relay, said
primary relay being jointly controlled by said
common contact and said make contact; and
, shutter disk having an aperture and arranged
,
65
to intercept and open the'path of light from said
exposure aperture to said ?lm, said second disk
being connected to be‘ actuated by said second
motor at a rate which is an integer multiple of
the rate of said ?rst member; a third revolving 70.
shutter disk having an aperture and arranged
to intercept and open the path of light from
a break contact connected to be periodically said exposure aperture to.said ?lm, said third
0 rated in response to the frequency ofone - disk’ being connected to be ‘actuated by said
of said secondary sources, said break contact be ~ ?rst motor; whereby a path of light is prepared 75
6
9,111,516
by said ?rst andsecond'disk‘durlng a predeter
minable period 01' exposure while the number oi
exposures per time unit is controllable'yhy the
time imit is controllable by the rate of said ?rst
rate or said ?rst motor.
12. In a photogrammetric moving picture
camera the combination with a camera-casing
having an exposure‘ aperture and means for mov
.camera the combination with a camera caslns
having an exposure aperture and means for mov
ing sensitized ?lm past said aperture said means
ing sensitized ?lm past said aperture said means
including a ?rst synchronous’ motor; a revolving
?rst shutter member having an aperture‘ and
including a ?rst synchronous motor; oi’ revolving
arranged to intercept ‘and open the path of
light~ from said exposure aperture to said ?lm; 10
'
10 ?rst shutter disk having an aperture and ar
ranged to intercept and open the path of light
from said exposure aperture to'said ?lm;' a sec
ond synchronous motor connected to actuate said
?rst shutter disk; a second revolving shutter disk
15 having an aperture and arranged to intercept
and‘ open the path of light from said exposure
aperture to said ?lm. said second disk being co
axially arranged with said ?rst disk and .con
nected to be actuated by said second motor at
a rate-which is an integer multiple of the rate
of said ?rst member; a third revolving shutter
disk having an aperture and arranged to inter
cept and open the path of light ‘from said ex
posureaperturetosaid?lm,saldthirddiskbe
ingcoax'ially arrangedwithsaid?rstdiskand
connected to be actuated by said ?rst motor;
whereby a path of light is prepared by said ?rst
and second .disk during a predeterminable period
of.»exposure while the number of
e per
motor.
_
13. In a photogrammetric moving picture
a second synchronous motor connected to actuate
said ?rst shutter member; a’ second revolving
.shutter member having an aperture and arranged
to intercept and open the path or light from
said exposure aperture to said ?lm, said second ll
member being connected to be actuated by said
second motor at a rate \which is an integer
multiple of the rate of said ?rst member; a third
revolving shutter member having an aperture and
arranged to intercept and open the path of light
irom said exposure aperture to said ?lm, said
third member being connected to be actuated'by _
said ?rst motor; a further shutter arranged to
intercept and open the said path .oi’v light from
said exposure aperture to said ?lm, said further
shutter being connected to be operated by said
?rst synchronous motor.
ERWIN ROUX.
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