US3069057A - High speed perforators - Google Patents

High speed perforators Download PDF

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Publication number
US3069057A
US3069057A US762828A US76282858A US3069057A US 3069057 A US3069057 A US 3069057A US 762828 A US762828 A US 762828A US 76282858 A US76282858 A US 76282858A US 3069057 A US3069057 A US 3069057A
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US
United States
Prior art keywords
tape
feed
anvils
clamp
cam
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
US762828A
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English (en)
Inventor
Handley John
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Individual
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Individual
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Publication of US3069057A publication Critical patent/US3069057A/en
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Classifications

    • 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
    • G06K13/18—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
    • G06K13/26—Winding-up or unwinding of record carriers; Driving of record carriers
    • G06K13/30—Winding-up or unwinding of record carriers; Driving of record carriers intermittently
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B25/00—Apparatus specially adapted for preparation of record carriers for controlling composing machines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/06—Tape or page guiding or feeding devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/20—Apparatus or circuits at the receiving end using perforating recorders

Definitions

  • the object of the present invention is to feed the tape at high speeds.
  • my copending application Serial No. 582,718, filed May 4,.1956, now Patent No. 2,960,163 I described a mechanism for feeding tape in a step-bystep manner in which a toothed pawl was carried by a feed rocker and the teeth of said pawl were urged into contact with the tape at an obtuse angle to the direction in which the tape was to be fed.
  • the feed rocker was cam-operated, first in the direction opposite to the tape feed and then to initial position to feed the tape.
  • a mechanism for feeding tape in a step-by-step manner includes a first cam and a cooperating first spring which reciprocates a feed clamp to feed the tape in the noted step-by-step manner.
  • a second cam and a cooperating second spring for closing and opening the feed clamp to grip and release the tape so that it is fed in one direction only.
  • An electromagnet is provided which when in one position holds the feed clamp open and when in the other position allows the feed clamp to close and grip the tape for movement in the feed direction.
  • a mechanism of the above character which further includes a spring-operated retention pawl arranged to prevent the tape from moving in a direction reverse to the feed direction.
  • I provide relay means to control the feed mechanism so that in one condition of the relay the feed mechanism is prevented from operation.
  • FIGS. 1 and 2 are a sectionalized side elevation and end elevation respectively of a mechanism according to the invention.
  • FIG. 3 is a side elevation in part section of a perforator incorporating two tape feed mechanisms according.
  • the feed clamp for the tape is constituted by a feed
  • cams 2 and 3 are of the same profile and in alignment.
  • Compression springs such as 11 are disposed between the side members of the feed rocker 8 and anchor members such as 37 affixed to part of the mechanism frame (not shown) so as to urge the feed rocker toward the left about the axes of shafts 29 and 29A and so that the peripheries of the rollers 5 and 6 are always in engagement with the profiles of cams 2 and 3 respectively.
  • the inner frame 12 also in the form of an inverted U, is located so that side members thereof are between side members of the feed rocker 8 and maintained in alignment therewith by clips 38A.
  • the lower extremity of each side member of the inner frame 12 is engaged by one end of a compression spring 13, the other end of which is supported by an anchor member 38 aflixed to a part of the mechanism frame (not shown), so that the anvils 10 thereon are, when permitted, urged toward the anvils 9 on the feed rocker 8.
  • the inner frame 12 is carried on extending portions of rocker arms-16 and 17 by means of pins 18 on the ends of these extending portions, the pins extending through elongated slots such as 39 through the side members of the inner frame and in close proximity to their extremities.
  • Both the rocker arms 16 and 17 are rigidly affixed to a shaft 15 rotatably mounted in portions of the mechanism frame (not shown).
  • a rocking arm 40 is rigidly affixed to one end of the shaft 15 and carries thereon a freely rotatable rocker 8 and an inner frame 12.
  • the feedrocker 8 is in the form of an inverted U and the vertical side members thereof are pivotally mounted at their lower extremities on shafts 29 and 29A which are rigidly affixed in axial alignment in side members 36 and 36A respectively of the mechanism frame, thus the upper end of the feed rocker 8 which is constituted by a cross member, and which carries anvils 9 on its under side, may be moved to the left or right about the axes of the shafts 29 and 29A.
  • Rollers 5 and 6 are rotatably carried between side members of the feed rocker 8 and arranged to peripherally engage profiles of the cams 2 and 3 which pins 18 in rockers 16 and 17 respectively so that the upper roller 7 which is urged into peripheral engagement with the profile of the cam 4 under the influence of a compression spring 14 which, at one of its ends, engages an extending portion of the rocking arm 40 and at its other end with an anchor member 41 rigidly mounted on a part of the mechanism frame (not shown).
  • a relay 24 is rigidly mounted on part of the mechanism frame (not shown) and with a movable armature 25 constituting an interposer arranged to engage a pin 42 on the rocking arm 40 when the relay is tie-energised, and arranged to clear therpin 42 when the relay is energised.
  • a tape holding clamp is constituted by member 19, in the shapeof an inverted U and a retainer-20, both of which are shown in the sectioned side elevation of FIG. 1.
  • the inverted U shaped member 19 is pivotally afiixed at the lower extremities of its side members to ends of extending portions of the rocker arms 16 and 17, these portions being disposed on the other side of the shaft 15 opposite the previously mentioned extending portions.
  • the upper end of the inverted U shaped member 19 is constituted by a cross member 43 which carries anvils 10 similar to those carried by the inner frame 12.
  • a member 44 is aflixed at one of its ends to an end of the retainer 20 and is pivotally mounted in a bracket 45 afiixed to part of the mechanism frame 46. The other end of the member.
  • the rocking arm 40 is prevented from oscillating shaft which carries rocker arms 16 and 17, and in consequence the inner frame 12 of the feed clamp, which is supported by the elongated slots such as 39 therein on pins 18 on extending portions of the rocker arms, is prevented from being oscillated upward and downward with respect to the feed rocker 8 so that the anvils on the feed rocker 8 and the inner frame 12 remain apart and the tape is maintained released.
  • the inverted U shape member 19 of the holding clamp is maintained stationary with the tape gripped between the anvils 9 and 10 on the retainer and the member 19 respectively.
  • the relay is energised and causes the interposer to move away from the pin 42 on the rocking arm 40, and in consequence the roller 7 on the rocking arm 40 is allowed to follow the periphery of the cam under the influence of compression spring 14 as well as compression springs such as 13.
  • shaft 15 is caused to oscillate, as are the rocker arms 16 and 17 thereon, so that the inner frame 12 of the feed clamp and the member 19 of the holding clamp move upward and downward alternately so that they grip and release the tape alternately.
  • the cams 2, 3 and 4 are so arranged on the shaft 1, one with respect to the other, that whilst the feed clamp is being moved to the right in a direction reverse to the feed direction, the anvils 9 and 10 thereon are maintained apart and the anvils 9 and 10 of the holding clamp are maintained together to grip the tape; and during movement of the feed clamp to the left in a feed direction the anvils 9 and 10 of the feed clamp are maintained together to grip the tape and feed it whilst the anvils 9 and 10 of the holding clamp are maintained apart so as to allow for free passage of tape therebetween.
  • the rocker arms 16 and 17 have a small amount of free movement before they move the inner frame 12 downward with respect to the feed rocker to release the tape at the end of the feed movement of the feed clamp.
  • the adjusting screw 22 which engages a nut 47 afiixed to the end engaged by the compression spring 21, allows the retainer 20 to be raised or lowered with respect to the member 19. This adjustment in conjunction with the free play of the pins 18 in the elongated slots 39 in the side members of the inner frame 12 permits the holding clamp to grip the tape at the end of the feed movement just before the feed clamp is released from the tape. Similarly the holding clamp is permitted to release the tape just before the feed clamp grips it at the commencement of the feed movement.
  • the interposer 25 is moved so that its end obstructs the pin 42, and roller 7 on rocking arm 40 is no longer able to follow the periphery of the cam 4.
  • anvils 9 and 10 of the feed clamp are maintained apart and thus there is no feeding of the tape which is gripped between anvils 9 and 10 of the holding clamp.
  • the holding clamp could be dispensed with providing means were available to prevent the tape moving in the direction reverse to the feed direction when the feed clamp is moving in that direction.
  • a spring-loaded pawl such as 35 (shown in the embodiment in FIG. 3) could be provided to engage the tape with its lower end 48 by a pivoting action about the pin 50 so that the tape is gripped between the lower end of the pawl 35 and part of the mechanism frame 49 over which it passes in its passage in the feed direction.
  • FIG. 3 shows a perforator mechanism-designed for punching 400 characters per second.
  • the punching mechanism per se forms no part of the present invention.
  • feed clamps 26 and 27 movement of the feed clamps in the feed direction to the left and the direction reverse to the feed direction to the right is accomplished by cam means co-operating with spring means as described for the first embodiment.
  • a cam such as 30, via rollers such as 51, actuates feed clamp 26 in the feed and reverse directions, whilst a cam such as 31, via roller such as 52, actuates feed clamp 27 in the same directions.
  • the feeding and reverse movements of one feed clamp are timed to take place alternately with those of the other clamp.
  • Springs such as 55 disposed between feed clamps 26 and 27 serve the same purposes for both clamps as do springs such as 11 in the first described embodiment.
  • Each rocking arm is actuated, when allowed, by a cam, not shown, co-operating with spring means such as 57 and 58 to enable its associated feed clamp to operate, via rockers such as 56, to grip the tape during movement of the feed clamp in the feed direction, and to release the tape during movement in the direction reverse to the feed direction.
  • a relay such as 34 is provided for each feed clamp each with an interposer 54 to co-operate with its particular rocking arm such as 53 so as to maintain the rollers such as 28 out of engagement with their associated cams (not shown) when required.
  • the feed clamps 26 and 27 are caused to operate to feed the tape alternately by sending alternate current pulses to the noted relays 34.
  • FIG. 4 shows the relative timing of the various cams in the apparatus.
  • Line A shows the timing of the punching cam which has uniformly accelerated and decelerated motion, the depth of penetration of the punch being onethird of the lift so that during a cycle of 2.5 ms. the punch is in the paper for 1 millisecond and clear of the paper for one and a half milliseconds. A time of one and a half milliseconds is available for feeding the tape.
  • Lines B and C in FIG. 4 show the timing of the two feed cams which operate alternately. Each cam has one and a half milliseconds lift and one millisecond dwell.
  • Lines D and E show the timing of the clamping of the paper tape.
  • Each clamping cam has 1.5 ms. lift and 1 ms. dwell.
  • the path of the tip of the relay armature end, and the rocker end Just above each of the lines D and E is shown the path of the tip of the relay armature end, and the rocker end.
  • line D for example, the paper is clamped during the interval marked a, the relay controlling the rocker commencing to operate at a time 21 when a signal commences.
  • the other relay commences to operate at time t2 when a second signal commences.
  • the first relay remains operated to overlap the operation of the second relay.
  • a mechanism for feeding tape in a step-by-step manner comprising an elongated feed gripper having a pair of anvils at one end adapted to have limited relative movement into a tape gripping position or a tape releasing position, means for pivotally mounting the other end of said gripper to permit limited oscillating movement of said gripper, whereby said anvils are moved alternately in a tape feeding direction and in a direction reverse to said tape feeding direction, first spring means for urging said gripper towards one limit of its movement, first cam means for alternately moving said gripper towards the other limit of its movement, second spring means for urging said anvils into one of their positions, second cam means for causing said anvils to move towards the other of their positions, so as to grip the tape when said anvils are moving in a tape feeding direction and to release said tape when said anvils are moving in a direction reverse to said tape feeding direction, and electromagnetically controlled interposer means for inhibiting the action of said second cam means except when tape feeding is desired.
  • a mechanism, as claimed in claim 1 further comprising a spring operated retention pawl arranged to prevent said tape moving in a direction reverse to said feed direction.
  • a mechanism for feeding tape in a step-by-step manner comprising first and second elongated feed grippers arranged in succession in the path of the tape through the mechanism, each comprising a pair of anvils at one end adapted to have limited relative movement into a tape gripping position or a tape releasing position, means for pivotally mounting the other end of said gripper to permit limited oscillating movement of said gripper, whereby said anvils are moved alternately in a tape feeding direction and in a direction reverse to said tape feeding direction, first spring means for urging said gripper towards one limit of its movement, first cam means for alternately moving said gripper towards the other limit of its movement, second spring means for urging said anvils into one of their positions, second cam means for causing said anvils to move towards the other of their positions, so as to grip the tape when said anvils are moving in a tape feeding direction and to release said tape when said anvils are moving in a direction reverse to said tape feeding direction, and electromagnetically controlled interposer means for inhibiting the action of said second
  • a mechanism, as claimed in claim 4 which further comprises a spring operated retention pawl arranged to prevent said tape moving in a direction reverse to said feed direction.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
US762828A 1957-09-28 1958-09-23 High speed perforators Expired - Lifetime US3069057A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB30464/57A GB853988A (en) 1957-09-28 1957-09-28 Improvements in tape feeding apparatus
GB3346457 1957-10-26

Publications (1)

Publication Number Publication Date
US3069057A true US3069057A (en) 1962-12-18

Family

ID=26260454

Family Applications (2)

Application Number Title Priority Date Filing Date
US762828A Expired - Lifetime US3069057A (en) 1957-09-28 1958-09-23 High speed perforators
US167876A Expired - Lifetime US3136481A (en) 1957-09-28 1962-01-22 Perforating apparatus for perforating the elements of a signal combination

Family Applications After (1)

Application Number Title Priority Date Filing Date
US167876A Expired - Lifetime US3136481A (en) 1957-09-28 1962-01-22 Perforating apparatus for perforating the elements of a signal combination

Country Status (6)

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US (2) US3069057A (ar)
BE (2) BE572335A (ar)
CH (2) CH365402A (ar)
DE (1) DE1078167B (ar)
FR (2) FR1210988A (ar)
GB (2) GB853988A (ar)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456161A (en) * 1966-08-15 1969-07-15 Ibm Look-ahead control circuitry

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767692A (en) * 1927-07-29 1930-06-24 Louis H Morin Flexible-shaft-making machine
US1825821A (en) * 1928-11-08 1931-10-06 Rosenthal Arthur Apparatus and prccess for printing letterheads
US1946874A (en) * 1931-11-18 1934-02-13 Rotary Printing Company Perforating machine
US2389556A (en) * 1942-07-27 1945-11-20 Siegerist Walter Turning machine
FR1124738A (fr) * 1955-04-19 1956-10-16 Dispositif d'avance automatique de bandes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US761132A (en) * 1902-07-03 1904-05-31 Samuel Insull Perforating device for music-rolls.
US2761513A (en) * 1952-09-20 1956-09-04 Burroughs Corp Rotary tape punch having selectively actuable perforating means
DE1010987B (de) * 1955-12-15 1957-06-27 Lorenz C Ag Vorschubeinrichtung fuer Aufzeichnungstraeger bei Telegrafengeraeten
US2956740A (en) * 1958-08-22 1960-10-18 Holley Carburetor Co Rotary perforator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767692A (en) * 1927-07-29 1930-06-24 Louis H Morin Flexible-shaft-making machine
US1825821A (en) * 1928-11-08 1931-10-06 Rosenthal Arthur Apparatus and prccess for printing letterheads
US1946874A (en) * 1931-11-18 1934-02-13 Rotary Printing Company Perforating machine
US2389556A (en) * 1942-07-27 1945-11-20 Siegerist Walter Turning machine
FR1124738A (fr) * 1955-04-19 1956-10-16 Dispositif d'avance automatique de bandes

Also Published As

Publication number Publication date
US3136481A (en) 1964-06-09
GB853988A (en) 1960-11-16
BE571549A (ar)
FR1210988A (fr) 1960-03-11
CH365402A (de) 1962-11-15
BE572335A (ar)
DE1078167B (de) 1960-03-24
FR1242307A (fr) 1960-09-30
CH371620A (de) 1963-08-31
GB853989A (en) 1960-11-16

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