US3358805A - Express margin setting device for typewriters - Google Patents

Express margin setting device for typewriters Download PDF

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Publication number
US3358805A
US3358805A US474679A US47467965A US3358805A US 3358805 A US3358805 A US 3358805A US 474679 A US474679 A US 474679A US 47467965 A US47467965 A US 47467965A US 3358805 A US3358805 A US 3358805A
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Prior art keywords
tabulating
margin
stop
lever
carriage
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Expired - Lifetime
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US474679A
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English (en)
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Salto Rinaldo
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Olivetti SpA
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Individual
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    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/54—Locking devices applied to printing mechanisms
    • B41J29/58—Locking devices applied to printing mechanisms and automatically actuated
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/50—Side-stop mechanisms

Definitions

  • An electric typewriter is provided with a margin setting device, comprising control means operable for transversely locking a margin stop and for disengaging same from a carriage rack, and a single key depressible for simultaneously operating said control means and a tabulating mechanism to expressly set the margin stop in the next following columnar position.
  • the key may also be depressed through a longer stroke for additionally operating a carriage return mechanism and temporarily disabling the tabulating mechanism to set the margin stop in a preceding columnar position.
  • This invention relates to an express margin setting device for a typewriter having a transversely traveling carn'age, at least a margin stop settable in different transverse positions on a carriage rack, and a tabulating mechanism operable for cooperating with a plurality of settable tabulating stops, said device comprising control means operable for transversely locking said margin stop and for disengaging same from said rack.
  • a margin setting device mounted either on the machine or on the carriage.
  • a first key is adapted to lock the margin stop transversely and to disengage same from the carriage.
  • the margin stop is then displaced along the rack by displacing the carriage, for example through the spacing key or the back space key, whereby the operation is intricate and time consuming.
  • each margin stop is spring urged toward a central margin counterstop, whereby at the depression of the margin set key, the margin stop suddenly contacts the counterstop. Therefore, to avoid an additional operation, the carriage must be previously located in the position to be reached by the margin stop, whereby its operation is intricate and time consuming too.
  • the express margin setting device which is characterized by a manually operable member for conditioning said control means and said tabulating mechanism to be simultaneously operated, whereby said margin stop is expressly set in the columnar position of the next following set tabulating stop in the advancing direction of said carriage.
  • FIG. 1 is a right hand longitudinal partial sectional view of a typewriter incorporating an express margin setting device according to the invention
  • FIG. 2 is a plan view of the machine of FIG. 1;
  • FIG. 3 is another right hand longitudinal sectional view of the machine of FIG. 1;
  • FIG. 4 is a perspective view from the bottom of a margin stop of the machine.
  • FIG. 5 is a front view of another detail of the machine.
  • the numeral 6 generally indicates a conventional transversely traveling paper carriage of an electric typewriter.
  • the carriage 6 is urged in the advancing direction, namely leftwards, by a conventional carriage spring, and is controlled by an escapement device known per se and not shown in the drawmgs.
  • each margin stop 8, 9 is provided with a slide 12 longitudinally slidable along two bent lugs 13 thereof and having a pin 14 normally entering the gap between two teeth of the rack '7 under the urge of a leaf spring 15 (FIG. 4) engaging a second pin 16 of the slide 12.
  • each margin stop 8, 9 is provided with a projection 17 (FIG, 2) adapted to cooperate with a corresponding projection 18 of the counterstop 11.
  • This latter is slidable on a square shaft 19 and is normally urged leftwards by a compression spring 29.
  • the shaft 19 (FIG. 1) is also adapted to be rocked clockwise on the machine frame for disabling the counterstop 11 by placing the projections 18 out of the path of the projections 17.
  • the typewriter is provided with a tabulating mechanism comprising a tabulating counterstop 23 adapted to cooperate with a plurality of tabulating stops 21 mounted on a bar 22 secured to the carriage 6 and individually settable to the position shown by broken lines.
  • the counterstop 23 is urged upwards by a spring not shown in the drawings to contact an arm 24 of a lever 26 pivoted on a shaft 27.
  • the lever 26 is connected through a link 28 to an arm 29 secured to the square shaft 19.
  • Fulcrumed on a pivot 25 of the lever 26 is a pawl 30 normally urged by a spring 31 to contact a lug 32 of a lever 33 fulcrumed on the shaft 27 as well.
  • the lever 33 is also provided with a second lug 34 urged by the spring 31 to contact a projection 36 (FIG. 3) of a horizontal slide 37 linked at 58 with a lever 59 fulcrumed on a shaft 57.
  • the lever 59 is pin and slot connected with a stem 63 of a tabulating key 64, which is normally urged upwards by a spring 68 connected to the lever 59. This latter is provided with a projection '71 adapted to cooperate with a bail 56 fulcrumed on the shaft 57.
  • the pawl 30 (FIG. 1) is provided with a shoulder 38 adapted to cooperate with a bail 39 fulcrumed on a shaft 41, but it is normally located out of the path of the bail 39.
  • a spring 44 normally urges the bail 39. to contact a pin 42 of a lever 43 fulcrumed at 45 and connected through a link 46 to an arm 47 of a member movable from a first to a second position. More particularly, said movable member is formed of a bail 48 pivoted on a shaft 49. Another arm 51 of the bail 48 is provided with a cam follower 50 urged by a spring 52 to contact a two-step cyclic cam 53 rotatably mounted on a shaft 54-.
  • the shaft 54 is continuously rotated counterclockwise by an electric motor not shown in the drawings and is adapted to cyclically drive the cam 53 through a clutch (FIG. 3) comprising a ratchet wheel 191 secured to the shaft 54 and a pawl 192 fulcrumed on a pivot 193 secured to the cam 53.
  • the pawl 192 is provided with a cam slot 194 cooperating with a pin 195 of a lever 196 rotatably mounted on the shaft 54 and connected through a spring 197 to the pawl 192.
  • the lever 196 is provided with a lug 198 normally abutting an end of a lever 181 fulcrumed on a stationary shaft 199 and normally urged by a spring 200 to contact a stationary member 201.
  • the lever 181 is also connected through a link 1182 to the bail 56. Normally the lever 181 arrests the lug 198 of the lever 196, whereas the cam 53 is arrested by the lever 196 through the pivot 193, and the pin 15 5 of the lever 1% holds the pawl 1&2 disengaged from the wheel 191 as shown in FIG. 3.
  • the lever 1% is also provided with a projection 202 adapted to cooperate with a lug 183 of a lever 184 fulcrumed on a stationary pivot 203.
  • the lever 1&1 is urged by a spring 264 to contact 2.
  • the bail 186 is normally urged by a spring 205, prevailing over the spring 2194, to contact a stationary member 206, thus normally holding the lever 184 in an ineffective position with the lug 183 out of the path of the projection 292.
  • the bail 186 is also provided with a lug 1S9 adapted to be engaged by a pawl 196 fulcrumed at 207 on the lever 26 and normally urged by a spring 208 to contact a member 2139 known per se.
  • the bail 186 when rocked clockwise is adapted to disengage an escapement device not shown in the drawings from the carriage 6, in the manner described in the applicants copending application Ser. No. 474,678, dated July 26, 1966, now Patent No. 3,338,368 issued Aug. 29, 1967, entitled Function Operating Device for an Electric Typewriter.
  • the tabulating counterstop 23 through the member 2209 upon termination of the tabu lating stroke, is adapted to disengage the pawl 1% from the lug 189, in the manner described in the cited application.
  • the stem 63 rocks the lever 59 clockwise, thus displacing the slide 37 forwards.
  • the projection 36 of the slide 37 rocks the lever 33 clockwise, whereby the spring 31 causes the pawl 36 (FIG. 1) to locate the shoulder 38 in the path of the bail 39.
  • the projection '71 (FIG. 3) of the lever 59 rocks the bail 56, which through the link 182 and the lever 1S1 releases the lever 1%.
  • the pin 1% causes the pawl 1%. to engage the wheel 191, whereby the clutch 180 is engaged and causes the cam 53 (FIG. 1) to effect a first step counterclockwise.
  • the bail 136 so rocked disengages the escapernent device from the carriage 6, which begins a tabulating stroke to the left.
  • the tabulating stroke terminates and the pawl 1% is disengaged from the lug 139.
  • the bail 186 is restored counterclockwise by the spring 265', thus returning the lever 13% to the ineffective position shown in FIG. 3.
  • the lug 183 of the lever 18d releases thus the projection 202 of the lever 196, whereby the clutch 189 is reengaged and causes the cam 53 to effect a second step thus restoring the bail 48.
  • the lever 26 when rocked counterclockwise during the tabulating stroke, through the link 28 and the arm 29, rocks the square shaft 19 clockwise, whereby the projections 18 of the margin counterstop 11 are located out of the path of the projections 17 of the margin stops 8, 9.
  • the right margin stop 9 is thus unable to arrest the carriage 6, and does not affect the counterstop 23. T herefore the carriage 6 may be tabulated to reach the stops 21 set at right of the right margin stop 9.
  • the typewriter is also provided with control means operable for transversely locking the margin stops 8, 9. More particularly, said control means comprise a bail '72 pivoted on a stationary shaft 73 and provided with a lug 74 adapted to engage the pin 16 of the slide 12 of each margin stop 8, 9.
  • the lug 74 is provided with two tapered edges 77 (FIG. 2) adapted to cooperate with a pair of pins 78 (FIG. 4) secured to each margin stop 8, 5 and directed downwards. The pins 78 thus prevent the lug 74 (FIG. 2) from engaging the pin 16 when the margin stop 8, 9 is slightly displaced with respect to the printing point.
  • the bail 72 (FIG. 1) is yieldably operable clockwise by means of a spring 83 normally urging a lug 79 thereof to contact a lever 82 pivoted on the shaft 73.
  • the lever 82 is urged by another spring 84 to contact a pin 86 of a lever 87 pivoted at 88 and urged by a third spring 89 to contact a stationary pin 91.
  • the lever 87 is provided with a pin 92 adapted to cooperate with a projection 93 of a slide 94 linked through a pivot 96 with a lever 97 fulcrumed on the shaft 57.
  • the slide 94 is normally urged by a spring 98 to contact a stationary pin 99 and is provided with a shoulder 101 adapted to cooperate with the bail 38, but normally located out of its path.
  • the slide 94 is also provided with a projection 102 adapted to cooperate with a lug of a latch 103 pivoted on the shaft 27 and urged by a spring 104 to contact a stationary pin 106.
  • the lever 97 is provided with a lug 107 normally urged by a spring 1138 to contact a shoulder 109 of a stem 111 secured to a depressible key 112. Fulcrumed on the pivot 96 of the lever 97 is also a pawl 113 provided with a projection 114 adapted to cooperate with the bail 56, a bent lug 115 of the pawl 113 being urged by the spring 168 to contact a tapered edge 116 of the stern 111.
  • the lug '74 through the pins 78 looks said margin stop 8, 9 transversely on the machine against any movement.
  • the carriage 6 may be transversely displaced to bring the required margin stop 7, 8 in contact with the counterstop 11 before depressing the key 112.
  • the typewriter is also provided with an express margin setting device comprising a manually operable member formed of an express margin setting key 117 for conditioning the bail 72 and the tabulating mechanism to be simultaneously operated.
  • the key 117 is secured to a stem 118 cooperating with a lug 120 of a lever 119 pivoted on the shaft 57 and with a lug 125 of a pawl 121 similar to the pawl 113.
  • Linked with the lever 119 is a slide 122 having a projection 123 adapted to cooperate with the lug 34 of a lever 33.
  • Pivoted at 128 on the lever 87 is a pawl 127 normally urged by a spring 126 to contact a lug 124 of the slide 122.
  • the pawl 127 is provided with a shoulder adapted to cooperate with the bail 39, but normally out of the path thereof.
  • the key 117 is adapted to be depressed through either a shorter stroke or a longer stroke.
  • the stem 118 is provided with a projection 129 adapted to engage an arm 130 (FIG. 5) of a bail 131 after being depressed through said shorter stroke.
  • the bail 131 is pivoted on a longitudinal shaft 132 and is provided with a second arm 133 normally urged by a spring 134 to contact a stationary pin 135.
  • An element formed of a lug 137 of a horizontal lever 138 is normally located on the path of a third arm 136 of the bail 131 for preventing the key 117 from being depressed through the longer stroke.
  • the lever 138 is pivoted at 139 (FIG.
  • a hole 142 of the lever 138 is entered by one end of a longitudinal slide 143, which is also provided with a slot 144 (FIG. 1) engaging a pin 146 of the bail 48.
  • the arm 133 of the bail 131 (FIG. 5) is connected through a link 147 with a lever 148 (FIG. 2) pivoted at 149.
  • a link 151 fulcrumed at 150 on the lever 148 is pin and slot connected with a lever 153 fulcrumed on a vertical pivot 154, and adapted to operate through a vertical bail 155 a carriage return mechanism comprising a conventional friction clutch 156.
  • This clutch when engaged causes a pulley 157 to be rotated by the shaft 54 and to wind a conventional carriage draw band not shown in the drawings.
  • This band at first operates a line spacing mechanism and then returns the carriage 6 rightwards in a manner known per se.
  • the line spacing mechanism comprises a pawl 158 (FIG. 1) adapted to be operated by said car riage draw band and to cooperate with a ratchet wheel 159 normally connected with a conventional paper platen 161 mounted on the carriage 6.
  • the line spacing pawl 158 may be rendered ineifective by an arcuate lug 162 of a lever 163 (FIG. 2) fulcrumed on a pivot 164.
  • the lug 162 is adapted to be interposed between the pawl 158 and the wheel 159, but it is normally located at right thereof.
  • the lever 163 is provided with another lug 165 normally urged by a spring 166 to contact a lever 167 (FIG. 1) fulcrumed on a pivot 168 secured to the carriage 6.
  • the lever 167 is provided with a pin 169 in turn contacting a projection 1713 of a universal bar 171.
  • This latter is fulcrumed on two pivots 172 secured to the carriage and it is adapted to cooperate with a lever 173 fulcrumed on a pivot 174 secured to the machine frame.
  • the lever 173 is connected through a link 176 to an arm 177 of the lever 82.
  • the express margin setting device is adapted to expressly set each margin stop 8, 9 (FIG. 2) in the column positions defined by the set tabulating stops 21.
  • the device operates as follows.
  • the pawl 30 so displaced on one hand causes the tabulating counterstop 23 to be raised and the carriage 6 to begin the tabulating stroke, on the other hand it causes the lever 184 to disengage the clutch 180 after having rotated the cam 53 through its first step.
  • the pawl 127 so displaced rocks the lever 87 in a manner similar to the depression of the key 112, whereby the margin stop '8, 9 is disengaged from the rack 7 and is transversely locked by the lug 74. Therefore, during the tabulating stroke the carriage 6 is displaced with respect to the margin stop so locked.
  • one of the margin stops 8, 9 is to be set in the columnar position of a set tabulating stop 21 at left thereof, for example for returning a margin stop in the position occupied before having been displaced rightwards as above described, at first the carriage 6 is displaced until the required margin stop encounters the margin counterstop 11. Then. the express margin setting key 117 is depressed to overcome the action of the spring 134 (FIG. 5) of the bail 131. This latter is thus rocked counterclockwise, but it is temporarily arrested by the lug 137 of the lever 138. Now the cam 53 rocks the bail 48 clockwise in the above described manner.
  • the key 117 must be held depressed through its longer stroke until the required set t-abulating stop 21 has passed the counterstop 23. Then the key 117 may be released thus causing the spring 134 (FIG. to restore the bail 131, whereby the carriage return friction clutch 156 (FIG. 2) is disengaged. However, since the cam 53 (FIG. 3) is still rotated through its first step, the tabulating mechanism is now effective, and the carriage 6 is moved leftwards by its spring until a tabulating stop 21 (FIG. 1) encounters the counterstop 23. The margin stop 8, 9 is thus set in the columnar position of a stop 21 located at left thereof.
  • the longer stroke of the key 117 may be arrested by an adjustable stop member for the counterclockwise rotation of the bail 131 (FIG. 5).
  • This stop member causes thus the bail 131 to rock the lever 153 (FIG. 2) counterclockwise so as to press the friction clutch with a force minor than in the case of the depression of the conventional carriage return key.
  • the pulley 157 is now rocked at a minor speed and the carriage 6 is returned slowly thus enabling the operator for releasing the key 117 (FIG. 1) at the required instant.
  • the operator by sensitively depressing the key 117 after having engaged the arm 13% (FIG. 5) of the bail 131 may regulate at will the speed of the carriage return, within the maximum speed allowed by said adjustable stop member.
  • an express margin setting device comprising in combination:
  • control means operable for transversely locking said margin stop and for disengaging same from said rack
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said cam to lock said margin stop transversely and to disengage same from said rack
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said movable member to lock said margin stop transversely and to disengage same from said rack
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said movable member to lock said margin stop transversely and to disengage same from said rack
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said movable member to lock said margin stop transversely and to disengage same from said rack
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said movable member to lock said margin stop transversely and to disengage same from said rack
  • an express margin setting device comprising:
  • control means operable for transversely locking one of said margin stops and for disengaging same from said rack
  • an express margin setting device comprising:
  • control means operable for transversely locking one of said margin stops and for disengaging same from said rack
  • control means comprising an engaging member and a yieldable member for yieldably operating said engaging member to engage said margin stops, said engaging member being so shaped that when it engages one of said margin stops and this latter is encountered by the other margin stop said engaging member releases said one margin stop and engages said other margin stop.
  • an express margin setting device comprising in combination:
  • control means conditionable for being operated by said movable member to lock said margin stop transversely and to disengage same from said rack
  • said control means comprising an engaging member and a yieldable member for yieldably operating said engaging member to engage said margin stops, said engaging :member being so shaped that when it engages one of said margin stops and this latter is encountered by the other margin stop said engaging member releases said one margin stop and engages said other margin stop.

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  • Accessory Devices And Overall Control Thereof (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Common Mechanisms (AREA)
US474679A 1964-08-01 1965-07-26 Express margin setting device for typewriters Expired - Lifetime US3358805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1713064 1964-08-01

Publications (1)

Publication Number Publication Date
US3358805A true US3358805A (en) 1967-12-19

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US474679A Expired - Lifetime US3358805A (en) 1964-08-01 1965-07-26 Express margin setting device for typewriters

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US (1) US3358805A (fr)
CH (1) CH433404A (fr)
GB (1) GB1088709A (fr)
SE (1) SE321244B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759361A (en) * 1969-11-03 1973-09-18 Triumph Werke Nuernberg Ag Carriage return and line space mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6015187A (ja) * 1983-07-06 1985-01-25 Canon Inc 電子タイプライタ

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1609943A (en) * 1925-07-13 1926-12-07 Remington Typewriter Co Typewriting and like machine
US1688380A (en) * 1928-10-23 of rochester
US1723240A (en) * 1929-08-06 Platenless typewriter
US1824099A (en) * 1926-02-11 1931-09-22 Elliott Fisher Co Typewriting machine
US1945895A (en) * 1931-11-16 1934-02-06 Remington Typewriter Co Typewriting machine
US1973314A (en) * 1932-09-24 1934-09-11 Remington Typewriter Co Typewriting machine
US2066979A (en) * 1933-03-02 1937-01-05 Woodstock Typewriter Co Tabulator mechanism
US2478630A (en) * 1945-04-14 1949-08-09 L C Smith & Corona Typewriters Power-operated printing machine
US2633964A (en) * 1949-06-28 1953-04-07 Keyboard controlled margin stop adjustment
US3217850A (en) * 1963-11-21 1965-11-16 Royal Typewriter Co Inc Forward and back spacing mechanism
US3268049A (en) * 1961-12-28 1966-08-23 Grundig Max Function control arrangements having common drive means

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688380A (en) * 1928-10-23 of rochester
US1723240A (en) * 1929-08-06 Platenless typewriter
US1609943A (en) * 1925-07-13 1926-12-07 Remington Typewriter Co Typewriting and like machine
US1824099A (en) * 1926-02-11 1931-09-22 Elliott Fisher Co Typewriting machine
US1945895A (en) * 1931-11-16 1934-02-06 Remington Typewriter Co Typewriting machine
US1973314A (en) * 1932-09-24 1934-09-11 Remington Typewriter Co Typewriting machine
US2066979A (en) * 1933-03-02 1937-01-05 Woodstock Typewriter Co Tabulator mechanism
US2478630A (en) * 1945-04-14 1949-08-09 L C Smith & Corona Typewriters Power-operated printing machine
US2633964A (en) * 1949-06-28 1953-04-07 Keyboard controlled margin stop adjustment
US3268049A (en) * 1961-12-28 1966-08-23 Grundig Max Function control arrangements having common drive means
US3217850A (en) * 1963-11-21 1965-11-16 Royal Typewriter Co Inc Forward and back spacing mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759361A (en) * 1969-11-03 1973-09-18 Triumph Werke Nuernberg Ag Carriage return and line space mechanism

Also Published As

Publication number Publication date
GB1088709A (en) 1967-10-25
CH433404A (fr) 1967-04-15
DE1436702A1 (de) 1969-03-13
SE321244B (fr) 1970-03-02
DE1436702B2 (de) 1975-11-20

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