US2026329A - Beading machine - Google Patents

Beading machine Download PDF

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US2026329A
US2026329A US36646629A US2026329A US 2026329 A US2026329 A US 2026329A US 36646629 A US36646629 A US 36646629A US 2026329 A US2026329 A US 2026329A
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movable
rays
record
character
ray sensitive
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/74Arrangements for recognition using optical reference masks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00Signals and indicators
    • Y10S116/29TV tuner
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S33/00Geometrical instruments
    • Y10S33/03Photoelectric

Description

Patented Dec. 31, 1935 UNITED s'rATEs amazs soma PATENT oFFicE aaanmc Macnnm' Gustav ramka. Vienna, .sum-ia Application May 27,1829, sensi No. 888.480 m Austria my ao, ma
zaouums. wi. 25041.;)
to be instituted thereby effecting the reading of such characters or indications, and thus replace reading by a person.
In order to attain this object the arrangement w according to the present invention is provided with cells, in which the electric conductivity is varied by radiation. and with comparison devices which on the arrival of certain rays iniluencing the cells direct or control the corresponding op- 15 erations,
The invention can be utilized for controlling any desired machine, however it will be found very useful in connection with oiilce-machines, which heretofo're could be operated only by per- 20 sons who were able to read. Further the machine may be used for testing and counting securities, bank-notes and so forth and for controlling automatons and the like.
One of the modes of carrying out the present 25 invention is illustrated diagrammatically by way of example on the accompanying sheet of drawing in which:-
Fig. 1 shows a perspective view of one construction, and
30 Fig. 2 is a detail view.
The embodiment shown in Fig. 1 serves for controlling the counting mechanism of a calculating machine. The record or sheet I, provided with characters or the numerals for calculation,
35 is placed on a base or carrier 2 in such a manner, that the number to be read is dlsposed opposite the lens 3, the record being illuminated by a strong source of light 4. On the other side of the lens 3 a suitable distance away, is ar- 40 ranged a photo-electric cell 5, in front of which rotat-es a movable device such as a. wheel 6 constituting a portion of a comparison device, provided with stencil-recesses corresponding'to the numerals to 9. The stencil-recesses are of such 45 a size and are shaped according to the numerals and are distanced in such a manner from the lens 3 that for instance the` image of the numeral l exactly coincides with the stencil-recess as soon as the latter is dlsposed atlthe cor- 50 responding place. A contact wheel 'I, provided with nine contactknives 8 and supplied with current by way of a brush 9, is connected With the wheel 6. A`contact-spring III is arranged opposite the contact wheel in such a manner,
55 that the knives 8 establish electric connection during the rotation of the said contact A wire of an Operating circuit leads fromv the contact spring loto a conta'oi-magnet ,|2 which on being charged with current attracte the armature il and by way of a link ll forces a pawl IB against the action of a spring II into a toothed feed-wheel |1 and feeds forward the latter for the extent of a tooth. A number-wheel or number representing or manifesting wheel ll is connected with the feed-wheel Il and accordlnsly 10 is fed forward also the extent of one place. In the circuit of the photo-electric cell I are included a low frequency transfonner 88 and a relay-magnet IS, which controls the current SUP- ply of the brush 9., During the rotation of the wheel 6, rays of light will periodically pass to the cell l by way of the successive stencll-recesses of the wheel 8. The cell 5 is subiected to full light if a blank place'of the sheet I is dlsposed opposite the lens 8` 'However a numeral, for instance the numeral 1, does not completely fill the other stencil recesses as shown in Fig. 2 by way of example of the stencil-recess corresponding to the Figure 2. Therefore light of the white writing sheet still passes to the cell I. l However a minimum of illumination of the cell 5 will take place, as soon as the stencii-recess corresponding to the numeral to be read is disposed in front of the cell. The relay IO in the i' control eircuit 38 is adiusted to' this Ailluminatlen-minimum and allows the withdrawal of. its armature 2| by means of the action of the spring 20. In this way the contact member 22 is released and thus the current-supply to the brush 9 is interrupted. Supposing the numeral 1 is to be read off, a contact-knife 8 would already have passed the contact-spring Ill at the time of the release of the relay-armature 2| and the figurewheel |8 would have been fed forward for a unit by the generated current. The' eight following 40 'contact-knives 8 would remain inoperative, be-
cause the current-supply tov the brush 8 is interrupted. Supposing the numeral 3 is to be ,read .011, three contact-knives would have become 'operative the flgure-wheel would have been fed forward for three units. and so forth.
Two camsV 23 and 2| return ,the parts 2| and 22 into the initial position after each revolution of the wheel 8. i The wheel 0 with the numerals or other characters thereon, constitutes a movable search member or character-bearing comparison device in the path of the rays of radiant energy. With said device move the wheel 'I and itsv contact knives or blades 8, said parts 1, 8 constituting 56 a control means adapted to open or close. at the contact spring lt, a sap in the Operating circuit il which includes the work device or magnet i and also has another gap which is open or closed bythe relay armatura Ii, the latter thus constituting another control means or control device for the Operating circuit ii, which second control means is under the control' of the photoelectric cell or other ray-'Sensitive device The magnet |2 through its armatura it and the parts connected therewith, controls manifesting means constituted by the wheel ll. This wheel moves in step with the wheel 'i as long as the character on the wheel 'I struck by the radiant energy does not correspond to the character on the record, but when the two characters do correspond, the manifesting wheel i! stops owing to the interruption of the Operating circuit at 2|.
No separate source of current is required in the circuit of the photo-electric cell when the latter is of the type that generatesan electric current when exposed to light. When using a photo-electric cell of the other type. which does not generate a current but simply varies in resistance under the influence of variations ofv light, I would of course include a battery or other suitable Sourcev of current in said circuit.
I claimz- 1. A character comparing device comprising in combination a carrler for a character-bearing record, a ray Sensitive device, a comparison device containing a series' of different characters, means for directing rays of radiant energy upon said ray Sensitive device by way of said record and of said comparison device, the latter being interposed between the record carrier and the ray Sensitive device and being movable relatively to the said carrier to successively bring the several characters of said series into co-operative relation, through said rays, with the record character being examined at the time, and a circuit including said Sensitive ray device and a, work device, said work device being operated by said ray Sensitive device when the characters of the record and of the comparison device agree to such an extent that the current in said circuit will assume a predetermined value adapted to cause an operation of said work device.
2. A character comparing device comprising in combination a ray Sensitive device in the path of rays of radiant energy impinging on a character-record, a movable device bearing a series of characters each of which is adapted to be brought, by the movement of said movable device, into the path of said rays, to control their passage to said ray Sensitive device and cause them to affect said ray Sensitive device differently according as like or unlike characters are Simultaneously in the path of said rays on the record and on Said movable device respectively, manifesting means, control means movable with said movable device, an operative connection between the laSt-mentioned means and the manifesting means to control the latter, said operative connection including a control device, and an operative connection from the ray Sensitive deviceto Said control device, to cause the lattei' to be actuated only when the character on the record is Substantially identical with that character on the movable device which at the tim is in the path of the rays.
3. A character comparing device comprising in combination a ray Sensitive device in the path of rays of radiant energy impinging on a character-record, a movable device bearing a Seriesl of characters each of which is adapted to be brought, by the movement of said movable device, intol the path of said rays, to control their passage. to said ray Sensitive device and cause them to effect said ray. sensltive device diifer- 5 ently according as like or unlike characters are Simultaneously in the path of Said rays on the record and on said movable device respectively, manifesting means, control means movable with said movable device, and an Operating circuit lo controlling said manifesting means, Said circuit being controlled both by said control means and by said ray Sensitive device.
4. A character comparing device comprising in combination a ray Sensitive device in the path 15 of rays of radiant energy impinging on a character-record, a movable device bearing a Series of characters each of which is adapted to be brought, by the movement of said movable device, into the path of said rays, to control their 20 passage to Said ray Sensitive device and cause them to aifect said ray Sensitive device4 differently according as like or unlike characters are Simultaneously in the path of said rays on the record and on said movable device respectively, manifesting means, control means movable with said movable device, and an Operating circuit controlling Said manifesting means, Said circuit having two gaps, one controlled by said control means, and the other by Said ray Sensitive device. .'10
5. A character comparing device comprising in combination a ray Sensitive device in the path of rays of radiant energy impinging on a characterrecord, a movable device bearing a series of characters each of which is adapted to be brought, by the movement of said movable device, into the path of said rays, to control their passage to Said ray Sensitive device and cause them to aifect Said ray Sensitive device differently according as like or unlike characters are Simultaneously in 40 the path of Said rays on the record and on Said movable device respectively, manifesting means bearing a Series of characters corresponding to those on Said movable device, control means movable with said movable device, an operative con- 45 nection between the last-mentioned means and the manifesting means to control the latter, said operative connection including a control device, and an operative connection from the ray sensitive device to said control device, to cause the 50 latter to be actuated only when the character on the record is substantially identical with that character on the movable device which at the time is in the path of the rays.
6. A character comparing device comprising in 55 combination a ray Sensitive device in the path of rays of radiant energy impinging on a characterrecord, a movable device bearing a Series of characters each of which is adapted to be brought, by the movement of said movable device, into the 60 path of said rays, to control' their passage to said ray Sensitive device and cause them to aifect said ray Sensitive device diiferently according as like or unlike characters are simultaneously in the path of said rays on the record and on Said movable device respectively, movable manifesting means, and means whereby the ray Sensitive device controls the movement of the manifesting means according as like or unlike characters on record and movable device are in the path of the rays at a particular time.
7. In a machine for reading an indication on a record, the combination of a ray Sensitive device, a movable device having indications formed by portions permeable to rays and adapted to the control of the indication on the record. upon the several permeabie indications of the said movable device as such indications are brought successively into the pathof said rays by the movement ofsaidmovable device, movable manifesting means, an operative connection' for normslly movingsaidmsnifestingmeansinresponseto movement of said movable device, and means, controlled by said ray Sensitive device, for breaking said operative connection whenever the indication on the record is substantially identical `with that indication on the movable device which atthattimeisinthepathoftherays.
8. In a machine for reading an mdication on a record, the combination of a 'ray sensitive device. a movable device having indications formed by portions permeable to rays and adapted to influence rays of radiant energy projected, under the control of the indication on the record, pon the several permeable indications of the said movable device as such indications are brought-successively into the path of said rays by the movement of said movable device, manifesting means provided with a series of indications corresponding to those of the said movable device, a'ctuating means controlled by the movcment of said movable device, for successively bringing the individual indications of the manifesting means into indication condition as the corresponding indications of said movable device come into the path of said rays, and means, controlled by said ray Sensitive device, for arresting -the operation of said actuating means whenever the indication on the record is substantially identical with that indication on the movable device which at that time is in'the path of the rays.
9. In a machine for reading an indication on a record, the combination of a ray Sensitive device, a movable device having indications formed by portions permeable to rays and adapted to influence rays of radiant energy projected, under the control of the indication on the record, upon the several permeable indications of the said movable device as such indications are brought Successiveiy into the path of said rays by the movement of said movable device, movable manifesting means provided with a Series of indications corresponding to those of the said movable device, an operative connection for normally moving said manifesting means in response to `movement of said movable device, to bring the individual indications of the manifestingmeans into indicating position Successively as the corresponding indications of said movable device come into the path of said rays, and means, controlled by said ray Sensitive device, for breaking said operative connection whenever the indication on the record is substantially identical with that indication on the movable device which at that time is in the path of the rays.
10. In a reading machine the combination with a movable device having a series of ray penetrable apertures, of means for moving the device for exploring by rays of radiant energy an indication on a record by comparlson with the series of ray penetrable apertures, a single ray Sensitive device the intensity of the rays of radiant energy impinging on the ray Sensitive device being reduced to a minimum when a ray penetrable aperture coincides with the indication on the record, a movable character manifesting means, and an operative connection for causing said manifesting means to move normally in step with said movable device, said operative record upon the ray sensitivedevice by rays of 10 radiant energy, means for manifesting a series of characters, means movable with the movable device, a controlling connection between said movable means and the manifesting means to control 'the latter, and means controlled by the 15 ray Sensitive device, for aifecting the control exerted on the 'manifeeting device by said movable means.
12. In a machine for reading characters on a record by means of rays of radiant energy, a ray 20 sensitive device and an electric circuit therefor,
a movable device having a series of characters, means for moving said device for successively comparing lby rays of radiant energy impinging upon said ray Sensitive device the series of characters with the character on the record, a movable character manifesting means, a'n operative connection between said movable deviceand said manifesting means, and a relay associated with the circuit of the ray Sensitive device and responsive to a predetermined current value effected when Substantial Identity is secured between the character on the record and one of the vcharacters of the movable device, and means controlled by said relay' for aifecting the movement of the character manifesting means to manifest the character on the record.
13. In a machine for reading a character on a record by means of rays of radiant energy, the combination with a ray Sensitive device, of a mov- 40 able device carrying a series of different characters, means for projecting rays of radiant energy upon the ray Sensitive device under control of the character on the record, means for moving the character carrying device whereby each character modifles the rays projected to said ray Sensitive device, a movable indicating device and means for normally moving it in step with Said character carrying device, and electrical means under control of the ray Sensitive device for affecting the extent of movement of the indicating device by its related moving means.
14. In a machine for reading a character on a record by means of rays of radiant energy, a ray Sensitive device, means for projecting rays of radiant energy upon the ray Sensitive device under control of the character on the record, a movable Vdevice carrying a series of characters, each `modifying the rays of energy projected to the ray Sensitive device, a character indicating device, means including an electrical device for normally moving said indicating device Step by Step during the movement of the movable device, and a relay including contacts for controlling the electrical device, said relay being controlled by the ray Sensitive device and responsive only when the character on the record is Substantially identical with that one of the characters of the movable device which at the time is in the path of Said rays.
15. In a machine for reading a character on a record by means of rays of radiant energy, a minimum current responsive relay, a movable character manifesting device bearing a series of characters, a character comparing device carry- 75 connected with said relay and responsiveto the rays of radiant energy which have lmpined on a character of the character com device and on the character on the record to cause said relay to be responsive when said two characters are substantially identical, and means whereby said relay effects the extent of movement of the character manifesting device.
16. In a machine for reading a character on a record by means of rays of radiant energy, a relay including contacts, said relay being responsive to a current of minimum amperage, a device operatlvely connected with said relay and responsive to rays of radiant energy, a comparison device bearing a series of characters adapted to be brought successlvely into co-operative relation to rays which are in co-operative relation with the character on the record to. develop a current of minimum amperage and'cause said relay to be responsive when compared characters correspond with each other, a movable character indicating means, and actuating means controlled by said comparison device and including a series of contact blades and a spring coacting therewith for efiecting a step by step movement of the character indicating means, the contacts of said relay being adapted to control said actuating means to effect the extent of movement of the indicating means.
17. In a machine for reading a character on a record, the combination of a character indicating device, means for moving said character indicating device, electro-magnetic means for controlling the operation of said moving means, a ray Sensitive device for controlling said electromagnetic means, a source of rays of radiant energy, and a comparison device bearing a plurality of characters adapted to be brought into the path of the rays of radiant energy impinging upon the ray Sensitive device, to compare such characters successively with the character on the record, said ray Sensitive device causing said electro-magnetic means to be inoperative when compared characters correspond with each other.
18. In a machine for reading an indication on a record, the combination of an indication manifesting device bearing a pluralityfof indications, means for actuating said indication manifesting device, means for controlling the operation of said actuating means, a ray Sensitive device for controlling the controlling means, and a comparison device bearing a plurality of indications corresponding to those of said manifesting device and adapted to be brought into the path of rays of radiant energy impinging upon the ray sensitive device, to compare such indications Succes- Sively with the indication on the record, said ray Sensitive device causing said controlling means to be operative when compared indications correspond with each other.
19. In a reading machine, the combination of a ray Sensitive device, a movable device adapted to control the projection of a number representing indication on a record upon said ray Sensitive device, number indicating means movable to different extent according to the number to be indicated, actuating means including parts movable with the movable device to control the movement of the indicating means, and means for controlling the operation of said actuating means in accordance with the-operation of the ray sensitive device. q
20. In a machine of the class described conmentioned controlling means.
'ing a series of cters correspo to those 'of said manifesting device, a device operatively trolled by a record having a character thereon.
a movable search member a set of the difl'erent characters which may appear on such record, means for projecting by radiant energy upon said search member an image of the charac- 5 ter appearing on the record, means for moving the search member to bring various characters thereof into successive relation to such image, and a device operated by such radiant energy when correspondence exists between a character 10 on the search member and the character on the record.
21. In a machine of the class described controlled by a record having a character thereon.
a search member bearing a set of all the different 15 characters which may appear on such record, means for projecting by radiant energy upon said search member an image of the character appearing on the record, means for efiecting relative movement of said search member and record gc to bring the various characters of said member into successive relation to such image, and a device operated by radiant energy when correspondence exists between a character on the search member and the character on the record. gg
22. A machine of the class described, comprising a manifesting device bearing a plurality of individual characters, a ray sensitive device, a movable device having a plurality of portions arranged to come into the path of rays of radiant 3 energy and to modify said rays before they reach said ray sensitive device, and means, controlled by both of said devices, for controlling said manifesting device.
23. A machine of the class described, comprising a manifesting device bearing a plurality of individual characters, a ray Sensitive device, a movable device having a plurality of individual characters corresponding to those of said manifesting device and arranged to come into the path 40 of rays of radiant energy and to modify said rays before they reach said ray Sensitive device, and means, controlled by both of said devices, for controlling said manifesting device. y
24. A machine of the class described, compris- 15 ing a manifesting wheel, a ray Sensitive device, a comparison wheel having a plurality of characters arranged to come into the path of rays of radiant energy and to modify said rays before they reach said device, electromagnetic means for actuating said manifesting wheel, a circuit-controller movable with said comparison wheel, another circuitcontroller controlled by said ray Sensitive device, and an actuating circuit including said two circuit-controllers and Said electro-magnetic means.
25. A machine of the class described, comprising a search member bearing a plurality of elements differing in ray-modifying properties, a carrier for an object to be compared with the elements of Said search member, said member and carrier being relatively movable to establish a cooperative relation between the said object and different individual elements of the search member, a ray sensitive device located in the path of rays which have impinged on said object and on 85 an element of the search member, a manifesting device, a controlling connection between said manifesting device and the search member, said connection including controlling means having relatively movable co-operating members connected respectively with said Search member and said carrier, and Said connection also including another controlling means, and an operative connection from the ray Sensitive device to Said last 26. In combination, a search member having a series of different characters, `means effective for each character on thsearch member tor projecting the images of a series of characters of a record upon said search member, means controlled by radiant energy for comparing each character of the member with the images of each of the characters on the record, and means for shifting said member after each comparison involving a character, to a position i'or comparing the same character of the record with a' different character of the search member.
v(msnv Tauscnmx.
US36646629 1928-05-30 1929-05-27 Beading machine Expired - Lifetime US2026329A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
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US2470877A (en) * 1945-07-10 1949-05-24 Stuland Tor Method and apparatus for detecting variations in the appearance of an object or sample
US2518694A (en) * 1947-04-28 1950-08-15 Demosthenes C Jannopoulo Image detecting photoelectric control device
US2833475A (en) * 1951-09-06 1958-05-06 Burroughs Corp Magnetic record and recordcontrolled mechanism
US3713099A (en) * 1959-08-04 1973-01-23 Character Recognition Corp Method and apparatus for identifying letters, characters, symbols and the like
US3713100A (en) * 1953-02-10 1973-01-23 Character Recognition Corp Method and apparatus for identifying letters, characters, symbols, and the like
US4071246A (en) * 1976-08-18 1978-01-31 Bally Manufacturing Corporation Magnetic reel reading device
US4138114A (en) * 1973-10-02 1979-02-06 Andersen Kurt H Slot machines
US8712163B1 (en) 2012-12-14 2014-04-29 EyeNode, LLC Pill identification and counterfeit detection method
US11201974B2 (en) 2018-02-26 2021-12-14 HLFIP Holding, Inc. Systems and methods for processing requests to send private postal mail to an inmate

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US2899857A (en) * 1959-08-18 Method for comparing the contour of an article with a standard
US2609143A (en) * 1948-06-24 1952-09-02 George R Stibitz Electronic computer for addition and subtraction
NL157302B (en) * 1949-11-16 Research Corp PROCESS FOR THE PREPARATION OF CONDENSATION PRODUCTS OF BENZOFUROXAN AND ITS DERIVATIVES.
US2787199A (en) * 1950-06-06 1957-04-02 Graphic Arts Res Foundation In Photocomposing apparatus
US2801279A (en) * 1950-10-27 1957-07-30 Eastman Kodak Co Electro-optical system for producing outline pictures from continuous tone originals
US2714843A (en) * 1951-06-19 1955-08-09 Harris Seybold Co Photographic type composition
US2773596A (en) * 1951-06-23 1956-12-11 California Packing Corp Comestible sorting apparatus
LU33065A1 (en) * 1951-11-28 1954-10-18
US2731621A (en) * 1952-04-01 1956-01-17 Cgs Lab Inc Counterfeit detector
US2762566A (en) * 1952-04-25 1956-09-11 Stern Joshua Code matching systems
US2879126A (en) * 1952-05-10 1959-03-24 Sun Oil Co Method and apparatus for magnetic recording in a bore hole
US3469263A (en) * 1953-02-09 1969-09-23 Sperry Rand Corp Character recognition system
US2847919A (en) * 1953-03-13 1958-08-19 Mergenthaler Linotype Gmbh Photocomposing machine
US2920524A (en) * 1954-10-25 1960-01-12 Smith Kline French Lab Inspection device
US3039681A (en) * 1955-05-02 1962-06-19 Magnavox Co Card processing system
US2898801A (en) * 1955-06-09 1959-08-11 Robotron Corp Inspection device for detecting differences in two objects
US2877884A (en) * 1955-11-23 1959-03-17 Kurt Korber & Co Method and device for aligning cigarettes
DE1100358B (en) * 1956-10-02 1961-02-23 Grundig Max Method for the automatic monitoring of machines by means of a television system
US2882420A (en) * 1956-11-07 1959-04-14 Genevoise Instr Physique Photo-electric microscope
US4184210A (en) * 1958-09-04 1980-01-15 Julius Hagemann Sonic echo scanning and facsimile recording of water submerged surfaces
US3156111A (en) * 1959-01-19 1964-11-10 Chemetron Corp Method and apparatus for use in ultrasonic rail testing
US3049588A (en) * 1959-08-28 1962-08-14 Prec Controls Corp Quality control system
US3178003A (en) * 1961-06-09 1965-04-13 Automatic Canteen Co System for detecting paper money or the like and controlling dispensing apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470877A (en) * 1945-07-10 1949-05-24 Stuland Tor Method and apparatus for detecting variations in the appearance of an object or sample
US2518694A (en) * 1947-04-28 1950-08-15 Demosthenes C Jannopoulo Image detecting photoelectric control device
US2833475A (en) * 1951-09-06 1958-05-06 Burroughs Corp Magnetic record and recordcontrolled mechanism
US3713100A (en) * 1953-02-10 1973-01-23 Character Recognition Corp Method and apparatus for identifying letters, characters, symbols, and the like
US3713099A (en) * 1959-08-04 1973-01-23 Character Recognition Corp Method and apparatus for identifying letters, characters, symbols and the like
US4138114A (en) * 1973-10-02 1979-02-06 Andersen Kurt H Slot machines
US4071246A (en) * 1976-08-18 1978-01-31 Bally Manufacturing Corporation Magnetic reel reading device
US8712163B1 (en) 2012-12-14 2014-04-29 EyeNode, LLC Pill identification and counterfeit detection method
US11201974B2 (en) 2018-02-26 2021-12-14 HLFIP Holding, Inc. Systems and methods for processing requests to send private postal mail to an inmate

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