US2692729A - Record sensing mechanism - Google Patents

Record sensing mechanism Download PDF

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Publication number
US2692729A
US2692729A US377164A US37716453A US2692729A US 2692729 A US2692729 A US 2692729A US 377164 A US377164 A US 377164A US 37716453 A US37716453 A US 37716453A US 2692729 A US2692729 A US 2692729A
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US
United States
Prior art keywords
machine
arm
switch
cam
solenoid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US377164A
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English (en)
Inventor
Guttridge Eric John
Parmenter Raymond Owen
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.)
Powers Samas Accounting Machines Ltd
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Powers Samas Accounting Machines Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Powers Samas Accounting Machines Ltd filed Critical Powers Samas Accounting Machines Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/06—Guiding cards; Checking correct operation of card-conveying mechanisms
    • G06K13/067—Checking presence, absence, correct position, or moving status of cards

Definitions

  • This invention relates to record card controlled statistical machines and in particular to apparatus for automatically rendering temporarily ineffective a no-card detector device provided at the output end of the machine.
  • a record card controlled statistical machine having a main shaft driven from a source of motivating power through a solenoid controlled clutch
  • apparatus comprising a normally open knock-off switch at the output end of the machine and included in the solenoid circuit, a normally closed delay switch in series with the knockolT switch, a normally inactive relay connecting said solenoid with a source of potential and permitting energisation of the solenoid when one or both of the knock-off and delay switches is or are open, reduction gearing driven in timed relation with said main shaft, a one-revolution delay cam coupled to the reduction gearing on operation of the solenoid to effect rotation of the main shaft, switch operating means operated by the delay cam to retain said delay switch in open condition during the one revolution of the cam, and interrupter means carried by the delay cam to effect uncoupling of the cam from the reduction gearing on termination of said one revolution thereby to restore the delay switch to the normally closed condition thereof and to condition the solenoid circuit for subsequent control by the knock-off switch.
  • Fig. 1 illustrates diagrammatically a detector device located at the output end of the machine
  • Fig. 2 is a diagrammatic pictorial View of some of the apparatus shown in Fig. 1,
  • Fig. 3 is a pictorial view, partly exploded, of a clutch device included in the driving means for the machine and by which operation of the machine can be interrupted and restarted,
  • Fig. 4 is an elevation illustrating a delay mechanism according to the invention
  • Fig. 5 is a section on line V -V, Fig. 4, and illustrates a reduction gearing included in Fig. 4, and
  • Fig. 6 is a circuit diagram illustrating the connexion between switches included in the appa ratus according to the invention.
  • record cards are fed through the machine from a magazine, not shown, at the input end of the machine, the cards being fed, as is customary, through the machine by pairs of rollers, not shown, the rollers being positively rotated by gearing, also not shown, driven from a main shaft I, Figs. 3 and v4:, through a clutch device connecting the shaft l to a continuously rotated shaft 2, Fig. 3, which is rotated by any suitable means, for example an electric motor, not shown.
  • the clutch device forms an interrupter device whereby operation of the machine canpe interrupted and restarted and comprises a clutch dog 3 secured to a worm wheel 4, freely rotatable on shaft I and driven by a worm 5, secured to shaft 2.
  • a clutch pawl 5 is carried by and is pivoted to a disc I secured to the shaft I for rotation therewith and is urged by a spring, not shown, to the active position thereof shown in Figs. 3 and l.
  • a trip member 8 pivoted at 9 is normally held out of engagement with the pawl 6 but is operable by the armature Ill, Fig. 4, of a solenoid II, as described below, to trip the pawl 6 out of engagement with the clutch dog 3, thereby interrupting the operation of the machine.
  • the main shaft I drives a shaft 12, Figs. 1 and 2, in a manner such that the shaft I2 rotates once for each revolution of the shaft 1.
  • the arm 20 supports a detector roller 22 which is freely rotatable on a stub spindle 23 secured to the arm 20, and the roller 22 is supported by the arm 20 for movement thereby bodily towards the path of cards C through the machine to determine whether a card is, as shown in Fig. 1, located beneath the roller during the movement thereof bodily towards the path of the card. Should no card C be in position beneath the roller during its movement towards the path of the cards it passes between two rollers 24 secured to a spindle 25 to which is also secured eject rollers, not shown, for ejecting a card C, Fig. 1, from the machine. If the detector roller 22 detects the absence of a card it operates, through arm ZI, a normally open knock-off switch about to be described.
  • Fig. 1 the card C is shown in position between the roller 22 and the rollers 24 and, in this position, the pin I1 is raised from the bottom of the slot I6 although normally it rests on the bottom of the slot, the arm I8 being pulled downwards, as viewed in Fig. 1, by a spring 26.
  • is connected to a contact operating arm 21, the forward end of which is provided with a sloping face 28 engaged by a contact carrier 29 pivoted at 30.
  • the contact carrier 29 supports for movement therewith a moving contact 3
  • the contact operating arm 21 is supported for substantially horizontal movement by an abutment 33 which engages the under-side thereof.
  • the dwell in cam I3 permits lowering of the link I5, as viewed in Fig. 1, so that, should a card not be positioned between the detector roller 22 and rollers 24 on movement of the roller 22 towards the path of the card the roller 22 passes between the rollers 24 thus rocking spindle I9 counterclockwise, as viewed in Fig. l, whereupon the arm 2I moves the contact operating arm 21 to the right, as viewed in Fig. 1, thus permitting the contact carrier 29 to be lowered until the moving contact 3I engages with the contact 32 whereupon the solenoid II is de-energised and a spring 34, Fig. 4, moves the trip member 8 from the full line position thereof shown in Fig. 4 to the dotted line position thereof so that it is interposed in the path of the tail 35 of the clutch pawl 6 thereby tripping the pawl 6 out of engagement with the clutch dog 3 and interrupting the operation of the main shaft I.
  • a normally closed delay switch comprising a fixed contact 36 and a moving contact 31 which, as can be seen from Fig. 6, are in series with the contacts BI, 32.
  • Operation of the contact 31, which is supported for movement with a contact carrier 38, Fig. 4, pivoted at 39, is controlled by reduction gearing comprising four gear wheels 40, ll, 42, 43 which, in the machine being described, comprise a 4:5 reduction gearing.
  • the gear Wheel 49 is secured to a shaft 44, for rotation therewith, the shaft 44, Fig.
  • a pawl 49 engageable with the teeth of the wheel 46 to couple the cam 41 to the spindle for rotation therewith.
  • the pawl 49 is urged towards the teeth of the wheel 46 by a spring 50 and is rendered normally inactive, that is it is retained out of engagement with the teeth of the wheel, by the co-operation of a tail 5I on the pawl with tri means comprising an overturned portion 52 formed on a latching bell-crank 53 pivoted at 54 to a frame plate 55.
  • To the latching bell-crank 53 is freely pivoted a latching piece 56 urged in a clockwise direction, as viewed in Fig. 4, by a spring 51.
  • the latching piece 56 co-operates with an abutment formed as a pin 58 carried by one arm of an operating bell-crank 59 which is pivoted at 60 to the frame plate 55. Th other arm of the operating bell-crank 59 is provided with a slot 6
  • the bell-cranks 53, 59 are sprung towards each other by a spring 64.
  • the delay cam 41 is provided with a peripheral detent 65 in which, when contacts 36, 31 are closed, is located a pin 66 carried by a switch operating means formed by a rocking arm 61 pivoted at 68 to the frame plate 55, the arm 61 having an overturned portion 69 which is engaged by a tail piece 10 of the contact carrier 38.
  • the arm 61 is urged towards the delay cam 41 by a spring 1I,
  • an operating switch 12 is provided in the circuit which switch is closed when operation of the machine commences and, at this time, the contacts 36, 31 of the delay switch are closed as shown in Fig. 4, but at this time the contacts 3
  • the trip member 8 remains in the full line position illustrated in Fig. 4 and the pin 58 on operating bell-crank 59 is not re stored to operative engagement with a face E2 of latching piece 56 until the solenoid I l is again die-energised, the pin 58 during the normal operation of the machine resting against a face 84 on latching piece 56 and being moved therefrom into engagement with the face 82 when, on de-energisation of solenoid II, the operating bell-crank 59 is moved clockwise, as viewed in Fig. 4, to the chain line position thereof.
  • a record card controlled statistical machine having a main shaft driven from a source of motivating power through a solenoid controlled clutch
  • apparatus comprising a normally open knock-off switch at the output end of the machine and included in the circuit for said solenoid, a normally closed delay switch in series with the knock-off switch, a normally inactive relay connecting said solenoid with a source of potential and permitting energisation of the solenoid when one or both of the knock-off and delay switches is or are open, reduction gearing driven in timed relation with said main shaft, a one revolution delay cam coupled to the reduction gearing on operation of the solenoid to effect rotation of the main shaft, switch operating means operated by the delay cam to retain said delay switch in open condition during the one revolution of said cam, and interrupter means carried by the delay cam to effect uncoupling of the cam from the reduction gearing on termination of said one revolution thereby to restore the delay switch to the normally closed condition thereof and to condition the solenoid circuit for subsequent control by the knock-off switch.
  • Apparatus according to claim 1 including a toothed wheel continuously rotatable by said reduction gearing with a velocity less than that of said main shaft, a pawl carried by said delay cam to couple the cam to said toothed wheel for rotation by said gearing, trip means operable by said interrupter means to render the pawl inactive, and an actuator operable by said solenoid on conditioning thereof to clutch the main shaft to the motivating means therefor to render the pawl active.
  • the trip means and actuator comprise a latching bellcrank to co-operate with said pawl, an operating bell-crank, a pivot for each said bell-crank, a spring connecting one arm of each bell-crank and tending to urge the arms towards each other, an abutment carried by said one arm of the operating bell-crank, a latching piece freely pivoted on said one arm of the latching bell-crank, a spring urging the latching piece towards said abutment, and a nose on said latching piece for engagement by said interrupter means to effect displacement of the latching piece from active engagement with said abutment.
  • Apparatus according to claim 3 including conditioning means operable once during each revolution of the main shaft to permit closing of the knock-off switch, said conditioning means comprising a lengthwise movable contact operating arm to operate a moving contact of the knock-01f switch, a freely pivoted contact carrier for said moving contact, a sloping face on said operating arm engaged by said contact carrier to control pivotal movement of the carrier on lengthwise movement of the operating arm, a rocking spindle connected with said operating arm to effect lengthwise movement thereof, a detector roller carried by the rocking spindle for movement thereby through the path of cards moving through the machine, a cam rotatable at the angular velocity of said main shaft and having a dwell to permit movement of the operating arm to close said knock-off switch when no card is engaged by the detector roller on movement thereof towards said card path, a link operable by said cam, an arm secured to said rocking spindle, a pin and slot connection between said link and arm, and a spring normally retaining the pin engaged with one end of the slot to permit rocking
  • a record card controlled statistical machine having a main shaft driven from a source of motivating power through a solenoid controlled clutch, apparatus comprising a normally open knock-off switch at the output end of the machine and included in the circuit for said solenoid, a
  • Apparatus according to claim 5 including a toothed wheel continuously rotatable by said reduction gearing with a velocity less than that of said main shaft, a pawl carried by said delay cam to couple the cam to said toothed wheel for rotation by said gearing, trip means operable by said interrupter means to render the pawl inactive, and an actuator operable by said solenoid on conditioning thereof to clutch the main shaft to the motivating means therefor to render the pawl active.
  • the trip means and actuator comprise a latching bell-crank to co-operate with said pawl, an operating bell-crank, a pivot for each said bell-crank, a spring connecting one arm of each bell-crank and tending to urge the arms towards each other, an abutment carried by said one arm of the operating bell-crank, a latching piece freely pivoted on said one arm of the latching bell-crank, a spring urging the latching piece towards said abutment, and a nose on said latching piece for engagement by said interrupter means to effect displacement of the latching piece from active engagement with said abutment.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Conveying Record Carriers (AREA)
US377164A 1952-10-22 1953-08-28 Record sensing mechanism Expired - Lifetime US2692729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26559/52A GB721857A (en) 1952-10-22 1952-10-22 Improvements in or relating to record card controlled statistical machines

Publications (1)

Publication Number Publication Date
US2692729A true US2692729A (en) 1954-10-26

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US377164A Expired - Lifetime US2692729A (en) 1952-10-22 1953-08-28 Record sensing mechanism

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US (1) US2692729A (xx)
DE (1) DE1025182B (xx)
FR (1) FR1088361A (xx)
GB (1) GB721857A (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065905A (en) * 1958-12-08 1962-11-27 Hans M Stern Random access storage device for cards
US3084857A (en) * 1955-11-15 1963-04-09 Commercial Controls Corp Motorized reader for record media
US3178178A (en) * 1961-08-17 1965-04-13 Itek Corp Data processing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310658A (en) * 1963-07-08 1967-03-21 Honeywell Inc Relevant data readout apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084857A (en) * 1955-11-15 1963-04-09 Commercial Controls Corp Motorized reader for record media
US3065905A (en) * 1958-12-08 1962-11-27 Hans M Stern Random access storage device for cards
US3178178A (en) * 1961-08-17 1965-04-13 Itek Corp Data processing apparatus

Also Published As

Publication number Publication date
DE1025182B (de) 1958-02-27
GB721857A (en) 1955-01-12
DE1025182C2 (xx) 1958-08-14
FR1088361A (fr) 1955-03-07

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