US2809785A - Generation of electrical impulses controlled by a perforated carrier - Google Patents

Generation of electrical impulses controlled by a perforated carrier Download PDF

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Publication number
US2809785A
US2809785A US457456A US45745654A US2809785A US 2809785 A US2809785 A US 2809785A US 457456 A US457456 A US 457456A US 45745654 A US45745654 A US 45745654A US 2809785 A US2809785 A US 2809785A
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United States
Prior art keywords
cylinder
hollow cylinder
card
photo
electric
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Expired - Lifetime
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US457456A
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English (en)
Inventor
Balde Ulysse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mithra A G
Mithra A-G
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Mithra A G
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Publication date
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/02—Details
    • H01H43/04—Means for time setting
    • H01H43/08—Means for time setting comprising an interchangeable programme part which is common for all programme steps, e.g. with a punched card

Definitions

  • the present invention relates to a device for the generation of electric impulses, for example for the automatic control of calculating machines, machine tools, shaft machines on looms etc.
  • electric control impulses as a rule electric contacts are opened and closed, for example in dependence of a rotating commutator, a punched tape, a magnetic tape'etc. which runs over the circumference of a cylinder where the sensing of the tape is carried out.
  • I provide a device for the generation of electric impulses in controlled dependenceof a perforated carrier, comprising in combination: a rotatable hollow cylinder having a cylindrical wall, clamping means attaching the perforated carrier detachably to the circumference of the said hollow cylinder, the said hollow cylinder being provided with apertures corresponding in number and disposition to the 1 possible places of. perforation of the. said carrier, at
  • those apertures of the said cylinder which are disposed along a generatrix thereof, light-compartments separated from one another and each containing one of the said 1 photo-electric converters, the said source of light and the said photo-electric converters being separated from one another by the cylindrical apertured wall of the said hollow cylinder.
  • Fig. 9 is a perspective view of an auxiliary device for thejfixing of a card to the circumference of a hollow cylinder. 7
  • the device has a supporting structure which consists of a base plate 101 and two vertically positioned plates 102 and 103 screwed thereto.
  • a stationary hub 104 is fixed with a horizontal axis.
  • a ring 107 is journalled rotatably, which is provided on its circumference with a toothing 108. With the latter a gear wheel. (not shown) can be brought into mesh for driving the ring 107.
  • lids 109 and 110 are screwed fixedly which enclose the anti-friction bearings 105 and 106, and protect the grease or oil serving for the lubrication of these bearings from being lost.
  • a further ring 111 isfixedly mounted which has a flange 112 projecting outwardly in order to prevent the lubricant to get from the toothing 168 to the right hand side in Fig. l.
  • a casing 113 which consists of an integral piece of material with the said hub.
  • incandescent bulbs 114 are fixed on .an insulating body 115, which is provided with means for the electrical connection of the lamps 114.
  • electrical supply conductors 116 pass through an axial passage 117 of the hub and emerge through a radial On the insulating body 115 two re-' opening thereof.
  • flector shields 118 are mounted which reflect the light of the lamps 114 upwardly.
  • the casing 113 forms a screwed, and another end piece 123 is pushed on detachably.
  • end piece screws 124 are provided for the attachment of the last mentioned end piece screws 124 are provided.
  • the end piece 122 is according to Figs. 1 and 5, provided with three dogs 125 projecting inwardly between which recesses are left.
  • the aforesaid lid 110 which is attached on the rotatable ring 104, has three dogs 126 of unequal width which project radially outward, and can engage between the dogs 125 of, the end piece 122 of the cylinder.
  • the dogs 125 and 126 form part of a so-called bayonet joint which permits the detachable attachment of the cylinder 121 on the ring 107.
  • the dogs 125 and 126 can be brought into engagement with one another by an axial movement of the hollow cylinder 121, whereafter the cylinder with its end piece 122 is turned relative to the ring and its lid 110 about the axis of rotation of these components. Then the dogs 125reach behind the dogs 126.
  • the inner edge vention will be clearly understood from the following detailed description of an embodiment thereof given by Fig. 5 shows the hollow cylinder detached, with the end pieces fixed thereto, in end-elevation, v
  • Fig. 6 shows part of the hollow cylinder with a punched card clamped thereto, in cross section
  • Fig. 7 shows an analogous cross section through an other part of the cylinder
  • the cylinder finds a suitable seat on a cylindrical face 127 of the lid in such a manner that the cylinder 121 comes to lie coaxially to the rotatable ring 107.
  • the ring 107 and the lid 110 fixed thereto form between themselves a rotatable holder for the hollow cylinder 121, in order that the latter may be supported, rotatable about its longitudinal axis.
  • the cylinder 121 is then held at one of its ends only.
  • the card 136 used is divided into two horizontally running halves. In each half, holes;
  • the outer circumference ofthe cylinder wall is provided with number and position circumferential grooves 143;
  • The, wallbf'thehollbW cylinder 121 is provided onits inside passes through the interior of n as" a wholeof the card'137, The longitudinal and cir;
  • curhferenti'al grooves 142 and 143 respeetively, are sol I to one another and that square apertures are formed in the hollow cylinderat the These: apertures are located on those f points,'whe 'ref the card 137 clamped on may have. holes; 1030f the supporting structure, the.
  • Thefb'lock 146 extends over the; whole lengthof the cylinder 121' and over a part of the 4 side by side, which are held together by holder pins 145.
  • a body 148 is fixed, which consists of elastically resilient material, e. g. of sponge rubber, and which has twelve holes, each for taking in a photo-electric converter 149, e. g. a photo-electric cell.
  • photo-electric converter 149 e. g. a photo-electric cell.
  • the light-passages flare out towards the photoelectric cells.
  • On'the-block 146 moreover two insulating plates-151are screwed-fast, which are provided with contact pieces 152, on -whichthe-electrical conductors 153 arehconnected-which-lead to the photo-electric cells 149. InlFig, 2 these-conductors have beenomitted, and in Fig- 3 are shown but partly, for-clarity.
  • a guide piece 154' is fixed on the plate 101 of the supporting structure.- This guide piece 154, together with the block 146, facilitates thecorrect insertion of the hollow cylinder in relation to the rotary holder 107, 110. Ofcourseneitherthe-block 146 nor the guide piece'154 contacts-the circumference of thecylinder 121 or the card.:clamped.thereon, respectively, as soon'as the cylinder is fixed. to therotatable holder 107, 110.
  • a hood (not shown) is detachably placed, .which prevents the access ofglight from-the enviro nment -tothe photo-electric cells 1491
  • The. manner -of.iuse :and. of operation of the device describ'ed isas follows: thelamps 114emit light through the slot 119 towards the inside ofthe hollow cylinder 121 andthrough the apertures. thereof which are-at any time situated over. the slot 119.
  • the punched card.136..clampedon is perforated, light can pass through the card andycanfa-ll on theassociated photo-electric cells, 149. In thelatten thereby a potentialv difference is set up,-Which.can be amplified and-can be used. for the electromagnetic control ofany-machines, relays etc.
  • the punched card is not perforated,
  • the photo-electric cellsiare.accordingly energised in accordance' with the holes present'at. anytime .in a column ofthe card 136..
  • a total of 88 control impulses can bederived from the card, in two revolutions of the cylinder 121. At the. first revolution of the cylinder 121 only those current impulses are evaluated which are generated. by the holes in the upper half 'ofthe. card, and at thesecond revolution only those current impulses, which are-generated'by -the'hol es in the lower half of the card. Each of these control impulses can be marked by one to six holes in the card.
  • the punched, card can be divided into three zones running horizontally, each of which contains.
  • the. device is not limited to the cards described by way of example, but could be arranged for the use of cards having a different number of lines and columns.
  • I I p The apertures of the hollow cylinder coordinated to the possible holes of the cards need not be formed by in tersecting longitudinal and circumferential grooves in the cylinder wall. It is also possible to produce the cylinder in a casting process in such a manner that the apertures are left free from the beginning on the right spots.
  • the hollow cylinder could alternatively be stamped out of flat sheet material, and subsequently bent into the cylindrical shape.
  • the advantage of the device consists in that the cards are not worn out during use in any way, and accordingly remain available for use practically indefinitely.
  • the device can be used in order to control in succession the various calculation operations desired, such as for example addition, subtraction, multiplication, division, raising to a power, drawing roots, rounding up or rounding down, etc. moreover for storing intermediate results temporarily in a mechanical electrical memory (recording), for recalling such intermediate results at a certain moment again from the memory and for using them for the further calculation, or for passing intermediate and final results on to another punched card machine, for example for punching the same into a card or tape, etc.
  • the various calculation operations desired such as for example addition, subtraction, multiplication, division, raising to a power, drawing roots, rounding up or rounding down, etc.
  • storing intermediate results temporarily in a mechanical electrical memory (recording) for recalling such intermediate results at a certain moment again from the memory and for using them for the further calculation, or for passing intermediate and final results on to another punched card machine, for example for punching the same into a card or tape, etc.
  • a device for the generation of electric impulses in controlled dependence of a perforated carrier comprising in combination: a rotatable hollow cylinder having a cylindrical wall, clamping means attaching the perforated carrier detachably to the circumference of the said hollow cylinder to successively produce a desired number of irnpulse series, the said hollow cylinder being provided with apertures corresponding in number and disposition to the possible places of perforation of the said carrier, at least one stationary source of light and a plurality of stationary photo-electric converters in juxtaposition to those apertures of the said cylinder which are disposed along a generatrix thereof, light-compartments separated from one another and eachcontaining' one of the said photo-electric converters, the said source of light and the said photo electric converters being separated from one another by the cylindrical apertured wall of the said hollow cylinder.
  • a device as claimed in claim 1, comprising in addition: a stationary diaphragm inteiposed between the said source of light and the said hollow cylinder and having a slot running along a generatrix of the said cylinder.
  • a device as claimed in claim 4 comprising in addition: an elastically yieldable body attached to the said block, the said body being provided with recesses in which the said photo-electric converters are inserted.
  • a device for the generation of electric impulses in controlled dependence of a perforated carrier comprising in combination: a stationary supporting structure, a holder rotatably mounted on the said structure, a hollow cylinder having a cylindrical wall and detachably mounted cantilever-fashion on the said holder adapted to be fitted thereto and withdrawn therefrom in the axial direction, clamping means attaching the said perforated carrier detachably to the circumference of the said hollow cylinder, the said hollow cylinder being provided with apertures corresponding in number and disposition to the possible places of perforation of the said carrier, at least one stationary source of light and a plurality of stationary photoelectric converters in juxtaposition to those apertures of the said cylinder which are disposed along a generatrix thereof, light compartments separated from one another and each containing one of the said photo-electric converters, the said source of light and the said photo-electric converters being separated from one another by the cylindrical apertured wall of the said hollow cylinder.
  • a device as claimed in claim 9, comprising in addition: a stationary hub fixed to the said supporting structure and journalling the said rotatable holder, the said hub being provided with at least one longitudinal passage for the blowing of cooling air and for passing the electrical supply to the said source of light.
  • a device as claimed in claim 9, comprising in addition: an end piece attached to the said rotatable holder, and an end piece attached to the said hollow cylinder, the said end pieces forming together the cooperating parts of a bayonet joint, being adapted to be pushed firstly axially into one another and then turned relative to one another into a mutually interengaging position.
  • a device as claimedin claim 10 comprising in addition: spring means biasing the said rotatable holder and the said hollow cylinder axially towards one another into engagement of their end'portions forming the said bayonet joint, a recess being provided on the end face of the said end piece of the said hollow cylinder adapted torallowzpart of the .saidspripg means: to rest itselfi-into.

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  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US457456A 1954-06-23 1954-09-21 Generation of electrical impulses controlled by a perforated carrier Expired - Lifetime US2809785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH757851X 1954-06-23

Publications (1)

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US2809785A true US2809785A (en) 1957-10-15

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US (1) US2809785A (enrdf_load_html_response)
BE (1) BE531675A (enrdf_load_html_response)
CH (1) CH322824A (enrdf_load_html_response)
FR (1) FR1112770A (enrdf_load_html_response)
GB (1) GB757851A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208040A (en) * 1961-03-14 1965-09-21 Powers & Eaton Ind Inc Line-casting machine
US3439760A (en) * 1963-10-15 1969-04-22 Hobart Corp Automatic printing price scale with photoelectric encoder including range and motion detectors

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1143573B (de) * 1959-02-20 1963-02-14 Elektro Steuerung Bunz & Blaes Steuervorrichtung fuer die selbsttaetige Programmsteuerung periodischer Arbeitsablaeufe, insbesondere fuer Werkzeugmaschinen
NL252820A (enrdf_load_html_response) * 1959-06-25
DE1166898B (de) * 1961-12-02 1964-04-02 Masing & Co K G Dr Verfahren und Vorrichtung zur photoelektrischen Abtastung eines Informationstraegers
DE1195396B (de) * 1963-04-27 1965-06-24 Scharpenack & Co Programmschalt- und -steuergeraet
DE1189300B (de) * 1963-06-12 1965-03-18 Remington Rand G M B H Abtasteinrichtung fuer Lochkarten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224765A (en) * 1939-06-16 1940-12-10 Ibm Data reproducing machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224765A (en) * 1939-06-16 1940-12-10 Ibm Data reproducing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208040A (en) * 1961-03-14 1965-09-21 Powers & Eaton Ind Inc Line-casting machine
US3439760A (en) * 1963-10-15 1969-04-22 Hobart Corp Automatic printing price scale with photoelectric encoder including range and motion detectors

Also Published As

Publication number Publication date
FR1112770A (fr) 1956-03-19
GB757851A (en) 1956-09-26
BE531675A (enrdf_load_html_response)
CH322824A (de) 1957-06-30

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