US1807270A - Visionograph record and method of making the same - Google Patents

Description

May 26, 1931. c. E. ALBERT! 1,807,270

YISIONOGRAPH RECORD AND METHOD OF MAKING-THE SAME Original Filed Aug. 13 1923 29 22425 45 40 I 49 31 qi 12 INVENTOR ATTORNEYS I Patented May 26, 1931 UNITED (STATES- PATENT OFFICE mamas EMANUEL ALIBEBTI, OF CHICAGO, ILLINOIS VISIONOGRAPH RECORD AND METHOD OI BAKING In sum- Application filed August 18, 1928, Serial No. 299,408. Renewed October 84, 1980.

My invention relates to visionograph records and methods of makin the'same, and it consists in the steps hereina -ter described and the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a visionograph recor'dof a type whereby imducing an image and a record prepared for reproducin sound,'and in which the production of t e two records may be performed synchronicallyh A further'object is to provide a method whereby a single record or a plurality of records may be produced adapted to reproduce images and sound s nchronically.

Other objects an advantages will appear in the following specification and the novel features of the mventionwillbe particularly pointed out in the appended claims.

- My invention is illustrated in the accompanying drawings, forming part of this application, in which Figure 1 is a diagrammatic view embodying t e structure employed in my method for preiaparing a visionograph record,

igure 2 is a plan View of a scanning disc, Figure 3 is a top plan view of a portion of the structure shown in Figure 1,

Fi re 4 is a view of a sin is record prepare to reproduce sound and ima es,

Figure 5 1s a view showing a furt er modification of the record shown in Figure 4, and Figure 6 is an enlarged sectional detail view showing a further modification of my record.

In carr ing out my invention, I make use of a main s aft 1 having a gear 2 operatively disposed with respect'to a gear 3 mounted upon a shaft 4 associated with a motor 5. The shaft 1 is provided with a'pair of bevel gears 6 and 7 and a smaller bevel ear 8. Any suitable means may be provi ed for rotatably mounting the shaft 1. Y

Ascannin disc 9 is secured to the shaft 1 and is PIOVldGd with a plurality of small openings 10' disposed in a s iral path near re 2. The

the outer edge, as shown in i disc may or may not be provide with lenses.

A platform 11 is positioned in operative relation with respect to the shaft 1, as shown in Figure 1. Turntables 12 and 13 are mounted upon the platform and. are operatively connected with'shafts 14 and 15,'respectively. The shafts 14 and 15 are provided with bevel gears 16 and 17 disposed ln'operative engagement with the bevel gears 6 and 7, respectively. The bevel gear 8 is operatively connected with a bevel gear 18 associated with a governor 19. The gear 18 is mounted upon a 'means 22 toward or away from the disc 21.

Suitable arms 25 and 26 are pivotally mounted. at 27 upon the platform 11. Each of the arms is provided with a suitable recorder 28 and 29 of the electromagnetic type. The

shaft 20 havin a movable disc 21 disposed recorders 28 and'29 are provided with needles 30 and 31, respectively.

A photo-cell 32 is disposed relatively close to the scanning disc 9 and o posite the path of the openings 10. A con uctor 33 electrically connects the photo-cell with an amplifier 34, and a conductor 35 connects the amplifier with the recorder 28. A conductor 36 leads from the recorder 28 to a source of current 37. The photo-cell 32 is electrically connected with the source of current 37 by means of a conductor 38.

The recorder 29 is provided with a conductor 39 connected with a source of current 40. A conductor 41. electrically connects a microphone 42. A conductor 43 leads from the microphone 42 to an amplifier 44,thelatterbeing electrically connected with the recorder 29 by means of a conductor 45. A suitable lens 4 6 is disposed near the scanning disc 9 and upon that side opposite the photo-cell 32. l

The lens'46 is adapted to focus light rays from an optical image 47.

From the foregoing description of the varirotates the shaft 1 and the scannin disc 9 at a relatively high rate of speed. otation of the shaft 1 rotates the shafts 14 and 15 of the turntables 12 and 13. I Records 48 and 49 are placed u on the turntables 12 and 13, respectively. uring the rotation of the scanning disc, the openings 10 will pass through a plane intersecting the image projected upon the edge of the disc by the lens- 46. As the openings ass across the projected image, light wi 1 pass through the o enings in accordance with the intensity of the light in the cross section of the ima e. The li ht passing through the openings fa ls upon the photo-cell 32 or any suitable means. Since the light which passes through the openings will vary in accordance with the intensity of the light in the path of the projected image, it will be seen that the light falling upon the photocell or any other suitable means will cause a greater or less amount of electricity to flow through the photo-cell. The variation of the current b reason of the photo-cell will cause electrical lmpulses which result in actuatin the needle 30. The movement of the needle will cause undulations to be formed withinthe groove of the record. The records 48 and 49 rotate at the same speed. This is easily attained by providing are 6 and 16 of the same ratio as the gears g9 and 17. The ratio between the re 6 and 16 and 7 and 17 may be change to attain any desired speed for the records. In referring to Fi ure 1, it .will be seen that sound may be recorded upon the record 49 through the microphone 42. It is thus possible to chronize the visionograph record 48 and t e record 49. The visionograph record 48,

see Fi re 3 is provided with an o ning d the i'ecord 49 is provided w ish an opening 51. The 0 enin permit the two records to be place in t eir same relative positions when reproducing as during the process of recording. a up In Figure 4 I have shown a record 52 having parallel grooves-53 and 54. One of the ooves comprises the image hndulations, and t e other groove the sound undulations.

; Such a record is easily prepared by lproviding a pair of recorders placed side side.

In Figure 5 I have shown a record ivided.

into two portions 55 and 56. In this record the ima e undulations may be formed in the face of t e portion 56 and the sound undulations in the face of the portion 55.

In'Figure 6 I have shown a further modification of a record in which a groove 57 is provided in the bottom of the groove 58. In this form, the image undulations may be formed in the groove 58, and the sound undulations in the groove 57, or vice versa. Such a record is formed by placing one recorder before the other. c

While I have defined in detail the prefilaraw be 'tion of my vi'sionograph record, it

seen that when once a record has been prepared, an image may be reproduced by reversing the process; that is to say, by 1placing a prepared record upon the turntab e 12. The undulations within the groove of the record imparted to the needle will be changed into electrical impulses by means of a device such as is used in phonograph electric pick ups. The variable electric current thus produced is amplified, and, by the provision of suitable apparatus, such as that used in a television receiver, a source of light will be caused to vary in intensity. The fluctuation of the light caused by the variable flow when looked at through a scannin disc will 've to the eye a reproduction of t e image. t is of course necessary that the scanning disc and the record revolve at the'same ratio of s eed as that used during the production of t e record. While I have defined specifically the scanning disc 9, it will be understood that various devices may beemplo ed such as an endless film-like member, an other moving members.

I claim:

1. A device of the type described comprising a rotatable shaft, 2. disc secured to the shaft and having a plurality of ope arranged in the form of a spiral, a plurahty of sha s o eratively connected with said rotatable sliaft, a turntable carried by each of said plurality of shafts, a record disposed upon each of the turntables, means for projecting an image of a distant scene upon that portion of the isc having the openings there- 1n, the rays of light from said image assing through the openings in the disc w en the latter is rotating in substantiall a continuous beam, li ht-sensitive-electricafiy controlled means a apted to vary electric current in proportion to the light passing through the openings, means associated with said lightsensitive electrically controlled means for forming undulations in one of said records, and sound-sensitive means associated with the other of said records for forming undulations therein. v

2. A device of the type described comprising a rotatable shaft, a disc secured to the shaft and having a plurality of openings arra d in the form ofaspiral, a plurality of she o eratively connected with said-rotatable s aft, a turntable carried by each of said plurali of shafts, a record disposed upon each 0 the turntables, means for prov openings, means associated with said lightsensitive electrically controlled means for forming undulations in one of said records, sound-sensitive means associated with the other of said records for formin undulations therein and means 0 rative y connected with said rotatable sha t for attaining a uniform speed.

3. A device of the type described comprism ing a rotatable shaft, means actuated by said shaft and having a plurality of openings therein, a lurality of shaftsoperatively connected wit said rotatable shaft, a turntable operatively connected with each of said plu- 15 rality of shafts, means for projecting an ima e of a distant scene upon that portion of t e first-named means having the openings therein, the rays of light from said image passing through the openings in said g -first-named means when the latter is moving, a record disposed upon each of said turntables, an electrically sensitive recorder associated with each of the records, lightsensitive electrically controlled means adapted to vary electric current in proportion to the light (passing throu h said openings and associate with one- 0 said recorders for forming undulations in one of the records, and round-sensitive means associated with so the other of said recorders for forming undulations in the record associated therewith.

4. A device of the type described comprising a rotatable shaft operatively connected with a power unit, a disc secured to the shaft :5 and having a plurality of openings arranged in the form 0 a spiral, a pair of shafts having gear connections with said rotatable shaft, a turntable associated with each of said shafts, a record disposed upon each of 40 the turntables, an electrically sensitive recorder associated with each of said records, means for projecting an ima of a distant scene upon that portion of sai disc rovided with the openin s, the rays of light om said 45 image passing t rough the openings in said disc when the latter is moving, light-sensitive electrically controlled means adapted to vary electric current in' proportion to the light passing through said ope sand assol0 ciated with one of said recor ers for form'- ing undulations in one'of the records, and sound-sensitive electrically controlled means associated with the other of said recorders for forming undulations in the record assoll ciated therewith, said turntables. bemfiiarchronism wi 'ranged'to be'moved in respect to each other and m.synchronism with Si ed at inthe count an and tate of Illino1a,thie as day. of August,

A. D .1928.m CHARLES EMANUELALBEBTI'.

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