GB907479A - Improvements in printing machines having continuously rotatable type wheels - Google Patents

Improvements in printing machines having continuously rotatable type wheels

Info

Publication number
GB907479A
GB907479A GB32428/59A GB3242859A GB907479A GB 907479 A GB907479 A GB 907479A GB 32428/59 A GB32428/59 A GB 32428/59A GB 3242859 A GB3242859 A GB 3242859A GB 907479 A GB907479 A GB 907479A
Authority
GB
United Kingdom
Prior art keywords
electromagnet
abutment
levers
engaged
hammer
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
Application number
GB32428/59A
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.)
Compagnie des Machines Bull SA
Original Assignee
Compagnie des Machines Bull SA
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 Compagnie des Machines Bull SA filed Critical Compagnie des Machines Bull SA
Publication of GB907479A publication Critical patent/GB907479A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/42—Hammer-impression mechanisms with anti-rebound arrangements

Landscapes

  • Impact Printers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

907,479. Typewriters &c. COMPAGNIE DES MACHINES BULL. Sept. 23, 1959 [Oct. 8, 1958], No. 32428/59. Class 100 (4). A continuously rotating type wheel printing machine has a hammer 44 for each type wheel 1 which strikes at a timed instant in the machine cycle under the action of a pre-tensioned spring 39 when a pulse applied to an electromagnet 6 releases a control member 11 which is then engaged by a toothed cylinder 5 rotating synchronously with the type wheels. A timed pulse to the electromagnet 6 attracts a blade 8 releasing it from the shoulder 13 of the member 11 which is then swung by a spring 14 first against a movable abutment 23 and then against a fixed abutment 21 from which it does not rebound. In this position a boss 19 is engaged by the next tooth of the cylinder 5 and thus swings up pivoting a member 26 to relase an arm 35 of a member 36 which under the action of the pre-tensioned spring 39 pivots clockwise causing the hammer 44 to strike. The member 36 is arrested first by a movable abutment 51 and then without rebound by a fixed abutment 55. Movement of the abutment 51 causes it to vary the magnetic field of an electromagnet 57 causing a winding 59 to send a pulse to a control circuit of the machine. After the printing cycle a re-cocking bar 61 restores the arms 35 which become re-latched by the members 26 while release of the electromagnet 6 allows the shoulders 13 of the members 11 to be re-engaged by the blades 8. The striking force of all the hammers can be adjusted simultaneously by means of an eccentric shaft 50 adjusting the position of levers 40 to which the springs 39 are attached and second levers 47 on which the levers 40 are pivoted. The position of the boss 19 relative to the toothed cylinder 5 can be adjusted by positioning a pivot screw 43 of a lever 22 mounting the abutment 21 in a slot 17. The timing of the hammer striking can be adjusted by pivoting the plate 7 mounting the electromagnet 6 and the member 11 about a screw 67. Specification 427,370 is referred to.
GB32428/59A 1958-10-08 1959-09-23 Improvements in printing machines having continuously rotatable type wheels Expired GB907479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR776196 1958-10-08

Publications (1)

Publication Number Publication Date
GB907479A true GB907479A (en) 1962-10-03

Family

ID=8707673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32428/59A Expired GB907479A (en) 1958-10-08 1959-09-23 Improvements in printing machines having continuously rotatable type wheels

Country Status (5)

Country Link
US (1) US3030882A (en)
BE (1) BE583143A (en)
DE (1) DE1196408B (en)
FR (1) FR1212331A (en)
GB (1) GB907479A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1267942A (en) * 1960-06-14 1961-07-28 Cie Des Machiens Bull Printing control device in a high speed printing machine
US3199650A (en) * 1961-08-02 1965-08-10 Ibm Hammer with dampening means for high speed printer
DE1212116B (en) * 1962-08-07 1966-03-10 Siemens Ag Mechanical print hammer actuation device for type rollers and similar typewriters
DE1264456B (en) * 1962-12-17 1968-03-28 Ibm Circuit arrangement for monitoring the proper course of a work cycle in a printing device
US3351006A (en) * 1964-06-11 1967-11-07 Honeywell Inc Print hammer having braking means

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013533A (en) * 1931-07-10 1935-09-03 Ibm Printing mechanism
BE403012A (en) * 1933-05-25
US2030427A (en) * 1934-12-14 1936-02-11 Ibm Tabulating machine
US2227143A (en) * 1937-03-19 1940-12-31 Knutsen Knut Andreas Printing device, particularly for tabulating machines controlled by record cards or bands
US2627807A (en) * 1949-12-03 1953-02-10 Ibm Rotary selective printer
NL159703B (en) * 1950-03-09 Ici Ltd PROCEDURE FOR THE PREPARATION OF A COATING DISPERSION, PROCESS FOR COVERING A SUBSTRATE AND MOLDED PRODUCTS PROVIDED WITH A COATING.
US2766686A (en) * 1953-06-11 1956-10-16 Hughes Aircraft Co High speed electro-mechanical interference-type transducer
US2799221A (en) * 1955-09-02 1957-07-16 Olivetti Corp Of America Printing mechanism
BE556241A (en) * 1956-03-29
US2895411A (en) * 1956-12-27 1959-07-21 Ibm High speed printer
US2897752A (en) * 1956-12-28 1959-08-04 Ibm High speed printing apparatus

Also Published As

Publication number Publication date
BE583143A (en) 1960-01-18
FR1212331A (en) 1960-03-23
US3030882A (en) 1962-04-24
DE1196408B (en) 1965-07-08

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