US2192352A - Receiving perforator - Google Patents

Receiving perforator Download PDF

Info

Publication number
US2192352A
US2192352A US141368A US14136837A US2192352A US 2192352 A US2192352 A US 2192352A US 141368 A US141368 A US 141368A US 14136837 A US14136837 A US 14136837A US 2192352 A US2192352 A US 2192352A
Authority
US
United States
Prior art keywords
punch
punches
code
lever
group
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
US141368A
Other languages
English (en)
Inventor
Edward E Kleinschmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US141368A priority Critical patent/US2192352A/en
Priority to GB11426/38A priority patent/GB499631A/en
Priority to DEK150436D priority patent/DE750713C/de
Priority to FR837619D priority patent/FR837619A/fr
Application granted granted Critical
Publication of US2192352A publication Critical patent/US2192352A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

  • This invention relates to telegraph receiving perforators and in particular, to the type in which a group of perforations representing the signals for telegraphing a letter is perforated cross-wise in a tape.
  • the devices for stor ing and transferring the selections, as well as the additional mechanism for perforating or other- -wise recording the selections, areentirely eliminated.
  • This simplification greatly reduces the number of parts required and makes possible the construction of a perforator at a much smaller cost.
  • the cost of upkeep is also greatly reduced, and due to the direct action and to the reduced number of adjustments required, the perforator of the present invention will operate more reliably than those previously proposed.
  • An object of the invention is to provide a simplified mechanism in which the usual means for storing the selections and for operating the selected punches in a group are eliminated.
  • a further object is to provide a mechanism in which a set of cams operate a set of punch levers in succession and a receiving magnet determines the punching operation of the punch lever so that a perforation is made in the tape for a signal impulse when it is received on the receiving magnet.
  • a further object is to provide an automatic feed-out device for the perforated tape which is started in operation when a message is combracket 3. It is rotated by gear 4. through friction coupling 5.
  • Pinion 6 which drives gear 4 is connected to a constant speed motor not shown.
  • shaft 2 has mounted thereon a set of code punch cams I, 8, 9, HI and H, a feed punch cam l2, and a feed cam l3.
  • An adjustable stop plate I4 is mounted on 5 the cam assembly.
  • a set of five code punch levers numbered I5, l6, l1, l8 and I9 which cooperate respectively with cams 1, 8, 9, l0 and H are mounted on stud 20 and are normally held against the lower part of stud 20 and against stud 2
  • the bearing aperture in code punch levers l5 to I9 is elongated so that the lower portion can move away from stud 20 for a purpose to be later explained.
  • a set of code punches numbered 23, 24, 25, 26 and 21 are operated by code punch levers l5 to IS; the code punches when operated pass through paper tape 28 and die plate 29.
  • Each of the code punches is provided with a spring 30 to withdraw it from die plate 29 after the punching operation. All of the code punches 23 to 21 are located in a row at right angle to paper tape 28.
  • is provided and has a spring 32 for retracting it from die plate 29 after the punchin operation; feed punch 3
  • a feed wheel 34 is mounted on shaft 35 which has attached to it feed ratchet 36 and is operatedby feed pawl 3'], feed pawl lever 38 also pivoted on stud 58, and feed cam l3.
  • a detent 39 is pressed against feed ratchet 36 by spring 40 and holds feed ratchet 36 in the fed position.
  • Feed wheel 34 is located at a point approximately midway between code punches 23 to 21 and feed punch 3
  • the blank paper tape 28 to be perforated is fed to the leftin Figures 1 and 2 from a storage wheel not shown over roller 4
  • a receiving magnet 42 is connected in the nor-v mally energized circuit of a transmitter by wires 82 according to the usual practice.
  • Armature lever 43 is pivoted on stud 44 and held in the retracted position by spring 45.
  • Armature lever 43 carries an armature 46 to cooperate with magnet 42, a fulcrum plate 41 having an upper beveled edge and a triangular stop projection 48. In the retracted position, armature lever 43 rests against stop screw 49.
  • I will describe the operation of the perforator when it is receiving the letter A which consists of the following impulses: one no current start impulse, two current impulses, three no current impulses, and the normal current stop condition.
  • armature lever 43 Upon the reception of the no current start impulse, armature lever 43 is released and stop projection 5
  • the first pulse for the letter A will attract armature lever 43 placing fulcrum plate 41 under bearing ledge 58 of code punch levers I5 to I9.
  • code punch cams I will engage with code punch lever I5, (Figs. 5 and 6) pressing same downward causing its bearing ledge 58.
  • Code punch lever I5 now pivots on fulcrum plate 4! and forces code punch 23 through paper tape 28..
  • the second pulse for the letter A also holds armature lever 43 attracted until code'punch cam 8"has engaged code punch lever I6 to force code punch 24 through the paper tape 28 in the same manner as just described.
  • the third pulse for the letter A being no current releases armature lever 43 moving fulcrum plate 4! out of. the path of bearing ledges 58 (Fig. 5) so that when code punch earn 9 engages with code punch lever II, its bearing ledge 58 does not fulcrum on plate 4! and code punch 25 is not operated.
  • Code punch lever II now fulcrums on code punch 25 at the end opposite to that engaged by code punch cam 9.
  • the springs 22 which have less tension than the springs 38 will be extended and the punches will not be moved.
  • the fourth and fifth impulses for the letter A are also a no current condition, armature lever 43 therefore remains retracted and neither of the 'code punches 26 and '21 are operated.
  • Automatic feed-out device It is found desirable in various types of transmitting systems to automatically feed out the tape after the message has been completely perforated therein. To accomplish this the following devices are provided:
  • is pivoted on stud 20 and has a projection 62 which engages projection 63 forming part of latch lever 64.
  • a cam 66 operates lever 65-to set in on latch lever 64' thereby closing the contacts III.
  • Feed pawl lever 38 has a stud 61 that engages with contact springs I8 to close them momentarily whenever feed cam I3 operates feed pawl lever 38.
  • contact springs I0 and I9 are connected in series and are placed in a circuit with stepping magnet II and battery 88.
  • Armature lever I2 which cooperates with magnet II carries a spacing pawl 13 that operates ratchet wheel 14.
  • Detent I5 is provided to holdratchet wheel I4 in itsvarious set positions.
  • projection I6 which in its normal position engages with contact spring r 11 to hold the same out of contact with contact spring I8.
  • Contacts I1 and I8 are in.a circuit bridging perforator receiving magnet 42.
  • a blank combination that is: a combination of. signals which perforate no holes in the paper tape 28 shall be transmitted at the end of every message.
  • contact cam 66 operates lever 65 to latch it on latch lever 64 closingeontacts III. This happens at the beginning of every operating cycle as shown by the timing chart, Figure 7. If thereafter a blank combination of signals is received on magnet 42, none of the code punch levers I5 to I9 will be.
  • a telegraphic receiving perforator comprising a group of punches, a group of punch levers, one for eachunit in a code, a group of cams for operating the punch levers in succession one at a time, and a receiving magnet for selectively controlling the operation of the punch levers on the punches.
  • a telegraphic receiving perforator comprising a group of punches, a group of punch lever's, one for each unit in a code, a group of cams for operating the punch levers in succession one at a time, and magnet operated means associated with the punch levers to cause the latter to operate a punch, or to prevent the operation of a punch, in accordance with the signals received on said magnet.
  • a telegraphic receiving perforator comprising a group of punches and mechanism to operate said punches to perforate a record tape in code groups in accordance with received code signals, and means to automatically advance the tape through the perforator a predetermined number of code groups when the first group of code signals of predetermined combination is received.
  • a telegraphic receiving perforator comprising a group of punches, a group of operating punch levers, one for each unit in a code, a group of cams for operating the punch levers in succession one at a time, said levers under normal or inactive operation pivoting on the punches and under active operation pivoting at a point between the punches and the cams onan abutment which is movable in or out of the pivoting point of the punch lever to thereby selectively control the operation of the punch levers on the punches.
  • a telegraphic receiving perforator comprising a group of code punches, means to operate said punches to perforate a record tape, and an electro magnet to operate a selecting. mechanism to selectively control the operation of the punches on the record tape, means operated by direct operation of the selecting mechanism to make the electro magnet inactive for a predetermined number of punching operations.
  • a telegraphic receiving perforator comprising a group of code punches, a set of punch levers to operate said punches to perforate a record tape, and an electro magnet to operate selecting mechanism to selectively control the operation of the punches on the record tape, means operated by the punching mechanism to short circuit the electro magnet for a predetermined number of punching operations when a group of signals of predetermined combination are received on the said magnet.
  • a telegraphic receiving perforator comprising a receiving magnet, an armature cooperating with said magnet, a group of punch levers, one for each unit in a code and arranged to cooperate with said armature, a group of code punches, a series of cams, one for each punch lever and arranged to operate directly the levers in succession, said cams operating in timed relation to the signals received on the magnet and the co-operating faces of thearmature and the punch levers 50 located that when a punch lever is operated by its cam in one position of the armature, it engages the latter to pivot thereon and operate a punch, and in the other position of the armature it does not engage therewith and does not operate a punch.
  • a telegraphic receiving perforator comprising a group of punches and a group of punch levers, a set of cams rotated in timed relation with the received signals to directly and selectively operate the punch levers and the punches,
  • a telegraphic receiving perforator comprising a group of punches, a group of punch operating levers each individual to a punch, cam means to operate the punch operating levers in succession, and magnetically controlled means to control the operation of the punch levers on the punches.
  • a telegraphic receiving perforator comprising a group of punches, a group of punch operating levers, and cam means to operate the punch operating levers, magnetic means to directly control the selective operation of the punch operating levers on the punches, a contact device under the control of the selective operation of the punches, and means operated by said contact device to, control the selective operation of the punches.
  • a telegraphic receiving perforator comprising a group of punches, a group of punch operating levers, a set of cams rotated in timed relationwith received signals to always operate thepunch'operating levers in succession, a fulcrum movable into two positions, said punchoperating levers when operated by the cams engaging with ,the fulcrumto operate the punches and to lock the fulcrum against movement when it is in one of its positions and to engage with the fulcrum to lock itagainst movement but not operate the punches when the fulcrum is in its other or second position.
  • a telegraphic receiving perforator comprising a group of punches that are operated in succession one at a time by a group of cams under the selective control of a; receiving magnet, said selective control comprising an armature for said magnet, a set of operating members that are always operated in succession by the cams, said armature engaging with the operating members in two positions to thereby selectively operate the punches to lock the armature against movement regardless of any change in the magnetic character of the magnet.
  • a telegraphic receiving periorator comprising a group of punches, operating means for said punches, signal responsive means controlling said operating means, and interlocking means for said operating and signal responsive means to increase the operating margins under adverse signalling conditions.
  • a telegraphic receiving perforator comprising a group of punches, operating means individual to each of said punches, signal responsive means controlling said operating means, and interlocking means for said operating and signal responsive means to increase the'operating margins under adverse signalling conditions.
  • a telegraphic receiving perforator comprising a group of punches, operating means individual to each of said punches, signal responsive means successively controlling said operating -means, and interlocking means for said operating and signal responsive means to increase the operating margins under adverse signalling conditions.
  • a telegraph receiver operated by equal length groups of two-element permutation code signals and comprising selecting means, recording means, spacing means and means under the direct and immediate control of a single group of code signals received by the selecting means to initiate the operation of only the spacing means for a predetermined number of spaces.
  • a group of cams to always operate a group of punch operating levers one at a time and in timed relation with received signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US141368A 1937-05-07 1937-05-07 Receiving perforator Expired - Lifetime US2192352A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US141368A US2192352A (en) 1937-05-07 1937-05-07 Receiving perforator
GB11426/38A GB499631A (en) 1937-05-07 1938-04-13 Receiving perforator
DEK150436D DE750713C (de) 1937-05-07 1938-04-27 Mechanischer Empfangslocher fuer telegrafische Kombinationsalphabete
FR837619D FR837619A (fr) 1937-05-07 1938-05-06 Perfectionnements aux récepteurs télégraphiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US141368A US2192352A (en) 1937-05-07 1937-05-07 Receiving perforator

Publications (1)

Publication Number Publication Date
US2192352A true US2192352A (en) 1940-03-05

Family

ID=22495391

Family Applications (1)

Application Number Title Priority Date Filing Date
US141368A Expired - Lifetime US2192352A (en) 1937-05-07 1937-05-07 Receiving perforator

Country Status (4)

Country Link
US (1) US2192352A (fr)
DE (1) DE750713C (fr)
FR (1) FR837619A (fr)
GB (1) GB499631A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820520A (en) * 1954-01-30 1958-01-21 Det Store Nordiske Telegraf Se Machine for converting telegraphic characters
US3255314A (en) * 1962-06-20 1966-06-07 Mite Corp Tape printer and perforator with reader

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820520A (en) * 1954-01-30 1958-01-21 Det Store Nordiske Telegraf Se Machine for converting telegraphic characters
US3255314A (en) * 1962-06-20 1966-06-07 Mite Corp Tape printer and perforator with reader

Also Published As

Publication number Publication date
FR837619A (fr) 1939-02-15
GB499631A (en) 1939-01-26
DE750713C (de) 1945-01-26

Similar Documents

Publication Publication Date Title
US3324240A (en) Telegraphic progressive printing system
US1941916A (en) Combined keyboard transmitter and perforated tape transmitter
US2675078A (en) High-speed reperforator
US2192352A (en) Receiving perforator
US2348214A (en) Printing telegraph apparatus
US2352060A (en) Telegraphic receiving perforator
US2052677A (en) Telegraph system and apparatus
US1394439A (en) Code-transposing apparatus for telegraph systems
US2666095A (en) Telegraph printer
US1975486A (en) Electric transmitting and receiving apparatus
US2718555A (en) Telegraph perforator
US2355657A (en) Printing telegraph apparatus
US2139452A (en) Printing telegraph receiver
US2194663A (en) Telegraphic transmitting device
US2419782A (en) Printing telegraph apparatus
US2969432A (en) Non-interfering tape feed-out mechanism
US2266027A (en) Permutation keyboard apparatus
US2113611A (en) Communication system
US2262014A (en) Teletypewriter transmitting and receiving system
US2445834A (en) Tape perforator
US1150326A (en) Electromagnetic recording apparatus for telegraph-circuits.
US2106693A (en) Home record cut-out assembly
US2233668A (en) Printing telegraph apparatus
US2589132A (en) Automatic shift control for printing telegraph apparatus
US1884743A (en) Single magnet reperforator