GB292013A - Improvements in type wheel typewriters - Google Patents

Improvements in type wheel typewriters

Info

Publication number
GB292013A
GB292013A GB3007527A GB3007527A GB292013A GB 292013 A GB292013 A GB 292013A GB 3007527 A GB3007527 A GB 3007527A GB 3007527 A GB3007527 A GB 3007527A GB 292013 A GB292013 A GB 292013A
Authority
GB
United Kingdom
Prior art keywords
lever
type
wheel
pin
rack
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
GB3007527A
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.)
PAUL OTTO MAYER
Original Assignee
PAUL OTTO MAYER
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
Priority to BE346880D priority Critical patent/BE346880A/xx
Priority to NL25680D priority patent/NL25680C/xx
Application filed by PAUL OTTO MAYER filed Critical PAUL OTTO MAYER
Priority to FR647728D priority patent/FR647728A/en
Priority to GB3007527A priority patent/GB292013A/en
Priority to DE1928M0103620 priority patent/DE476957C/en
Publication of GB292013A publication Critical patent/GB292013A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
    • B66D5/026—Fluid-resistance brakes
    • 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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/04—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades causing a directed flow, e.g. Föttinger type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Common Mechanisms (AREA)

Abstract

292,013. Mayer, P. OÀ Nov. 9, 1927. Index type-wheel machines. - A type-wheel and setting-devices therefor and an ink-supply roller are mounted on a lever which rocks on a vertical pivot and is moved horizontally towards the platen to effect impression; the lever may carry a feed-pawl which co-operates with a rack on the carriage to effect letter-spacing, and the typewheel may be associated with case-shift mechanism. In the machine shown in plan in Fig. 1. a lever 3 pivoted on a vertical pin 2 on the base 1 is provided with a pin 6 supporting a type-wheel 5, the lever being moved towards the platen 7 by means of a fingerpiece 4 to effect impression. Setting-mechanism for the type-wheel comprises a rack 18 mounted on the lever and gearing with a pinion 24 on the type-wheel. The rack is actuated by a knob 50 secured to a spring blade 20 pivoted to the rack, the knob being set with reference to an index plate 21 and having a ball 22 for engaging recesses 23 therein. Aligning for impression.-The pinion 24 on the type-wheel 5 co-operates with an aligning-tooth 43. Case-shift mechanism.-The type-wheel 5 has three rings of type and is raised to bring the middle or bottom ring to the printing line by depressing a key 34 which is pivoted on a lever 33 engaging the type-wheel. On depressing the key vertically, the bottom ring is brought to the printing line, but if the key is rocked before being depressed it is arrested by a stop 38 and the middle ring is brought to the printing line. Roller inking-arrangements.-An ink-roller 25 is mounted on a yielding part 30 of an arm 26 which is pivoted on a pin 27 on the base and has a lug 28 engaging a notched part, 29 of the lever 3. On moving the lever, the ink roller passes over the type-wheel and over an ink-supply roller 31 which is mounted on the lever. Letter-spacing mechanism.-A rack 9 on the carriage 8 co-operates with a pawl 11 consisting of a bell-crank which is slotted to engage a pin 10 on the lever 1 and is connected to returning- springs 12, 16. On moving the lever, the pawl engages the rack to effect letter-spacing, and then engages a stop 14 and moves idly on the pin during the further movement of the lever to effect impression. In some cases the pawl is merely pivoted on the pin and is arranged to yield on engaging the stop. The lever is normally arrested by a pin 40 on the base 1, but when it is necessary to effect spacing without impression a stop-sleeve 39 on the pin is depressed to arrest the lever before the type-wheel reaches the platen. Paper-shields.-For limiting the length of the typed line, the carriage 8 is provided with a coloured transparent shield 45 covering the end of the platen. The shield is mounted on a pivot 44 and can be raised to permit of typing in the margin.
GB3007527A 1927-11-09 1927-11-09 Improvements in type wheel typewriters Expired GB292013A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE346880D BE346880A (en) 1927-11-09
NL25680D NL25680C (en) 1927-11-09
FR647728D FR647728A (en) 1927-11-09 1927-11-09 Types wheel typewriter
GB3007527A GB292013A (en) 1927-11-09 1927-11-09 Improvements in type wheel typewriters
DE1928M0103620 DE476957C (en) 1927-11-09 1928-02-28 Type wheel typewriter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3007527A GB292013A (en) 1927-11-09 1927-11-09 Improvements in type wheel typewriters

Publications (1)

Publication Number Publication Date
GB292013A true GB292013A (en) 1928-06-14

Family

ID=10301866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3007527A Expired GB292013A (en) 1927-11-09 1927-11-09 Improvements in type wheel typewriters

Country Status (5)

Country Link
BE (1) BE346880A (en)
DE (1) DE476957C (en)
FR (1) FR647728A (en)
GB (1) GB292013A (en)
NL (1) NL25680C (en)

Also Published As

Publication number Publication date
BE346880A (en) 1927-11-09
DE476957C (en) 1929-05-30
FR647728A (en) 1928-11-30
NL25680C (en) 1931-07-15

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