US3169697A - Record perforating device - Google Patents

Record perforating device Download PDF

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Publication number
US3169697A
US3169697A US312409A US31240963A US3169697A US 3169697 A US3169697 A US 3169697A US 312409 A US312409 A US 312409A US 31240963 A US31240963 A US 31240963A US 3169697 A US3169697 A US 3169697A
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US
United States
Prior art keywords
punch
cam
operating lever
lever
record
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
Application number
US312409A
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English (en)
Inventor
Ludwig M Schmidt
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.)
Unisys Corp
Original Assignee
Sperry Rand Corp
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.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
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Publication of US3169697A publication Critical patent/US3169697A/en
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/02—Methods or arrangements for marking the record carrier in digital fashion by punching
    • G06K1/06—Manually-controlled devices
    • G06K1/08—Card punches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
    • B26F1/36—Punching or perforating pliers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/16—Cam means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/04—Perforating by punching, e.g. with relatively-reciprocating punch and bed with selectively-operable punches

Definitions

  • FIG. 1 1s 2 4 CIRCUIT INVENTOR LUDWIG MICHAEL SCHMIDT AT TORNE Y United States Patent 3,169,697 RERE3 PERFORATEJG DEVRIE Ludwig M. Schmidt, Bad Vilbel, Kreis Friedherg, Germany, assignor to Sperry Rand Corporation, New York, N.Y., a corporation of Deiaware Filed Sept. 39, 1963, er. No. 312,499 (Ilaims priority, application Germany Get. 12, 1%2
  • This invention relates to a record perforating device and more particularly to an improved form of electrically operated high speed punch mechanism.
  • Conventional punching devices usually consist of a series of punch bars, one for each possible column or row position, known as a serial punching device, or one for every possible position on the card, known as a gang punch. Additionally, a heavy motor driven element known as the bale is provided for driving of the punch bars. Placed between the bail, which supplies the driving force and the punch bar which permits the actual perforation of the record, are a series of interposers employed to selectively transmit the bail power to the punch bars. The interposers in turn are connected to individual lectromagnets which may be operated in accordance with some selection scheme. As a result of the large number of interposers which must be set and of the heavy weight of the bail which must be moved, certain time limits exist as to the maximum speed of operation of the device.
  • a positive mechanism is required to permit the returning of the punch bars to their initial positions from their record perforating position. This may involve in some manner the attachment by means of notches, springs, cams or other devices of a punch stripper possible requiring a further power source.
  • the stripper operation creates a further timing problem in that it must be punch operating lever which acts as interposer and punch stripper at the same time.
  • the device further employs a drive means which incorporates both the punching driving means and the punch return driving means in a single unitary form so that accurate timing of the punching operation and the resetting or return operation is established. Further, the electromagnetic actuator is placed in close proximity to the punch operating lever so that it operates directly upon the punch operating lever thereby eliminating the wear, friction and noise accompanying the use of individual interposers, bails and connecting linkages.
  • the drive means is a cam disc which has upon it a punching cam and a return cam displaced from one another so as'to provide a cam guide between them.
  • the elec tromagnet for controlling an individual punch is actuated, forcing a cam following surface on one end of the punch operating lever to enter the cam guide.
  • the punching cam will cause the punch operating lever to be pivoted in such a manner as to force the punch bar, connected at the opposite end of the punch operating lever, through the record.
  • the electromagnet may be deenergized to retract the armature from the surface of the punch operating lever.
  • the return cam operates upon the bottom surface of the cam follower of the punch operating lever together with a biasing spring, which is placed between the punch operating lever and a support member, to restore the punch bar to its initial position. Due to the accurate placement of the punch and return cams on a single cam disc, synchronization between the punching and the return times is carefully insured. Additionally, the linkage in prior art devices required between the electromagnetic actuating device and the interposer is removed.
  • the cam follower of the punch operating lever will ride over top of the punching cam causing no relative movement of the punch operating lever or punch, thus decreasing the overall amount of friction and wear which normally are found in prior art devices. It is thus obvious that the punch operating lever will only be operated when a punching operation is necessary.
  • a plurality of individual punch units, as described, may be stacked to permit the punching of as many positions as are desired along the punch line.
  • FIGURE 1 illustrates a card punchingv device constructed in accordance with the basic'concepts of the invention and illustrates the device in-the non-select or nonpunchingmode.
  • r f I FIGURE 2 illustrates a portion of the device ore-Fro- URE l indicatingthe manner in which the 'electrornag' a punch operating lever to cause punching operalobe 38 and the leading edge 42 of the cam follower 40 has entered the cam guide 58.
  • the cam disc 48 continues to rotate the upper surface 46 of the cam follower will follow the lower surface 59 of the punch cam 56, causing the punch operating lever 2 to be pivoted in a clockwise direction about pivot 4.
  • the surface 3 of the punch operating lever 2 engages the surface 24 of the aperture 22 of the punch 20 whereby the punch 20 is moved upwardly as the lever 2 is rotated.
  • the relative curvatures of the cam follower 49 and the punch cam 56 are so chosen that sufficient rotation of the punch operating lever 2 is achieved to permit the punch 20 to be moved through the aperture 28 in the die block 30 through the record 36 into the aperture 32 in a die plate 34. It should be noted that all drive power for punching is provided by the cam disc 48 motor unit and that the armature 70 merely serves to control the position of cam follower 49.
  • FIGURE 3 there is illustrated the arrangement of the components of FIGURE 1 during the punching cycle after the selection circuit 64 stops providing current to the electromagnetic means 60.
  • the punch bar continues its upward movement but the armature 68 is returned to its initial position by means of spring '72 along the guide pins 76.
  • FIGURE 3 illustrates the relationship of the punching cam 56 and the cam follower 49 at the position of maximum travel of the punch bar 20. It should be noted from FIGURE 3 that the spring 12 has been stretched as the punch operating lever 2 has been rotated. It should further be noted that for further rotation of the cam disc 48 the lower surface 47 of the cam follower 40 will begin to engage surface of the return cam 54. The cam follower 40 will continue in the cam guide 58 for a short portion of the following notation of the cam disc 48. However, as the cam follower 46 leaves the cam guide 58, the cam follower 40 Will be acted upon only by means of the return cam 54.
  • a single shaft 50 wouldbe provided with properly spaced cam discs 48 and punching and return cams 56 and 54 respectively, spaced along the shaft to cooperate with the individual cam followers 40 of the punch operating levers 2.
  • A- separate set of punches and actuators 60 would be required for each punch unit.
  • a single guide block 34) and guide plate 34 would be required with a plurality of apertures 23 and 32 therein, respectively.
  • a punching assembly comprising: a punch operating lever, said lever arranged to be moved in arcuate paths; a punch bar coupled to a first end of said punch operating lever and movable by said lever to a position to permit perforation of a record; biasing means connected to said punch operating lever to place said lever in a non-perforating position; drive means to selectively move said punch operating lever between said non-perforating position and said record perforating position, and means selectively operable to cause said pun-ch operating lever to engage said drive means; said drive means comprising a driven cam disc having a return cam and a separate punch cam, said punch cam being so placed upon said cam disc as to hold said punch operating lever in engagement with said drive means during said record perforation, whereby said punch cam controls the position of said punch operating lever after said selectively operable means ceases to cause said punch operating lever to engage said drive means.
  • a punching assembly comprising: a punch operating lever, said lever arranged to be moved in arcuate paths; a punch bar coupled to a first end of said punch operating lever and movable by said lever to a position to permit perforation of a record;
  • biasing means connected'to said punch operating lever to place said lever in a non-perforating position; drive means to selectively move said punch operating lever between said non-perforating position and said record perforating position, said drive means comprising a driven cam disc having a return cam and a punching cam, said cams being placed upon said cam disc to form a cam guide; and means selectively operable to cause said punch operating lever to engage said cam guide; said cam guide controlling said punch operating lever during said record perforation and after said selectively operable means ceases to cause said punch operating lever to engage said comprising: a punch operating lever, said lever arranged to be moved in arcuate paths; said lever further having acam follower surface mounted at a first end of said V lever; a punch bar coupled to said second end of said lever and adapted to be moved by said lever to a position to permit perforation of a record; biasing means connected to said lever to place said lever in a non-perforating position; drive means adapted to selectively move said lever between said non-perfor
  • said act uator means is a selectively operable electromagnet, which when operated causes its armature to engage said punch operating lever placing said can follower surface in said cam guide, said electromagnet operation being terminated shortly after the entry of said cam follower surface into said earn guide.
  • a punching assembly comprising a punch operating lever, said lever arranged to be moved in arcuate paths; a punch'bar coupled to a first end of said punch operating lever, said punch bar normally remaining in a non-perforating position and movable by said lever to ,a position to permit perforation of a record; drive means to selectively moveisaid punch operating lever between said non-perforatingposition and said record perforating position, and 1113311886?
  • said drive means comprising a driv'encasn disc having'a return cam and a separate punch cam, said punch cam being so placed upon said cam: disc as to hold said punch operating lever in engagement with said drive means during said record perforation whereby saidpunchcam controls the position of said punch opcrating lever after'saidselectively operable means' ceases to cause said punch operatinglever to engagelsaid drive 7.
  • a punchin assembly j comprising: a punc'h'operating lever, said lever arranged to be moved in arcuate paths; ca punchbar coupled to a operating lever between said 'non perforating" position and said record perforating position; and means selectiveiy operable *to' causesaid punchoperating lever to engage said drive means; said drive means comprising a driven cani disc having a return cam and a holding means,

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US312409A 1962-10-12 1963-09-30 Record perforating device Expired - Lifetime US3169697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER0033675 1962-10-12

Publications (1)

Publication Number Publication Date
US3169697A true US3169697A (en) 1965-02-16

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US312409A Expired - Lifetime US3169697A (en) 1962-10-12 1963-09-30 Record perforating device

Country Status (5)

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US (1) US3169697A (en:Method)
BE (1) BE638486A (en:Method)
CH (1) CH405781A (en:Method)
GB (1) GB975700A (en:Method)
NL (1) NL298989A (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276681A (en) * 1963-11-20 1966-10-04 Sperry Rand Corp Record punching mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741312A (en) * 1951-09-18 1956-04-10 Ibm Indicia-controlled record perforating machine
US2761513A (en) * 1952-09-20 1956-09-04 Burroughs Corp Rotary tape punch having selectively actuable perforating means
US2964108A (en) * 1957-10-11 1960-12-13 Royal Mcbee Corp Record perforator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741312A (en) * 1951-09-18 1956-04-10 Ibm Indicia-controlled record perforating machine
US2761513A (en) * 1952-09-20 1956-09-04 Burroughs Corp Rotary tape punch having selectively actuable perforating means
US2964108A (en) * 1957-10-11 1960-12-13 Royal Mcbee Corp Record perforator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276681A (en) * 1963-11-20 1966-10-04 Sperry Rand Corp Record punching mechanism

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Publication number Publication date
CH405781A (de) 1966-01-15
NL298989A (en:Method)
GB975700A (en) 1964-11-18
BE638486A (en:Method)

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