US3834509A - Function controlling margin stop arrangement - Google Patents

Function controlling margin stop arrangement Download PDF

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Publication number
US3834509A
US3834509A US00315662A US31566272A US3834509A US 3834509 A US3834509 A US 3834509A US 00315662 A US00315662 A US 00315662A US 31566272 A US31566272 A US 31566272A US 3834509 A US3834509 A US 3834509A
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Prior art keywords
control
bail
margin
margin stop
function performing
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Expired - Lifetime
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US00315662A
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English (en)
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G Ruh
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Olympia Werke AG
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Olympia Werke AG
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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
    • B41J29/64—Locking devices applied to printing mechanisms and automatically actuated by a function of the printer to lock the keyboard
    • B41J29/66—Locking devices actuated when platen reaches the end of a line
    • 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
    • B41J29/46—Applications of alarms, e.g. responsive to approach of end of line

Definitions

  • the present invention relates particularly to motor driven typewriters with a carriage supporting a type carrier.
  • the carriage is provided with an abutment which engages adjustable margin stops at the beginning and end of a line.
  • the left margin stop is not only used for stopping the carriage, but also for disengaging a drive clutch by which the carriage is driven, which is accomplished by a small displacement of the margin stop rail by the respective margin stop against the action of a spring.
  • Another object of the invention is to use a control bail permitting adjustment of the margin stops on the rail, but controlling and effecting functions required at the beginning and end of a typed line.
  • control bail is held in a central position of rest by centering biasing means, and on each margin stop, a control means is movably mounted which, when engaged by an abutment on the typewriter carriage, act in opposite directions on the control bail in such a manner that the same either operates a signalling device such as a bell, and a key lock, as required at the end of a line, while on the other hand at the beginning of a line, another function can be effected, such as disengagement of a drive clutch which was closed upon operation of the carriage return key.
  • a function controlling margin stop arrangement comprises a margin stop rail; a first margin stop and a second margin stop mounted on the margin stop rail and being associated with the end and thebeginning of a typed line, respectively; control bail means mounted for angular movement between at least one first control position and at least one second control position, and an intermediate position of rest about an axis parallel with the marginstop rail, the control bail means including an elongated bail portion parallel to the axis and extending to the first and second margin stops; biasing means for holding the control bail means in the position of rest and including first and second control means.
  • control levers movably mounted on the first and second margin stops, respectively, and engaging the bail portion from opposite sides; a typewriter carriage mounted for movement parallel to the margin stop rail in a writing direction to a first actuating position engaging and displacing the first control means so that the control bail means is shifted to the first control position, and also movable in the return direction to a second actuating position engaging and displacing the second control means so that the control bail means is shifted to the second control position; and first and second function performing means actuated by said control bail means in said first and second control positions, respectively, to perform first and second functions, respectively, required in said first and second actuating positions of the carriage.
  • FIG. I is a schematic front view, partially in section, illustrating an embodiment of the invention.
  • FIG. 2 is a fragmentary cross-sectional view taken on line 22 in FIG. 1;
  • FIG. 3 is a fragmentary schematic side view illustrating first and second function performing means operated by the control bail shown in FIGS. 1 and 2, the device being shown in a position of rest;
  • FIG. 3a is a fragmentary schematic view correspond to FIG. 3, but illustrating a first control positionof the control bail;
  • FIG. 3b is a fragmentary schematic view corresponding to FIG. 3 but illustrating another first control position of the control bail
  • FIG. 30 is a fragmentary schematic view corresponding to FIG. 3 and illustrating in solid lines the position of rest of the control bail, and in chain lines the second control position of the control bail;
  • FIG. 4 is a fragmentaryfront view illustrating a modification of the embodiment of FIG. 1;
  • FIG. 5 is a fragmentary plan view of the modification shown in FIG. 4.
  • FIG. 6 is a fragmentary sectional view illustrating the mounting of a margin stop on the margin rail.
  • a margin stop rail 2 is mounted in the frame 1 of a typewriter and has ends secured by pins 2a to support arms a, see FIGS. 1 and 2, which have shaft portions 61 mounted for angular movement in bearings 606 on frame 1 so that by operation of a key 60., the margin stop rail 2 can be angularly displaced.
  • Each of the sup.- port arms 60a is normally held in the position shown in FIG. 2 by a spring 60d which biases the support arm 60a against a stationary stop 60c.
  • a first margin stop 5 and a second margin stop 4 are mounted on the rail 2 by means of cavities 62 the rail 2 being provided with rack teeth 2b on one side, and is pressed by spring 64 to a position in which the rack teeth 2b engage a transverse pin 66.
  • the rack teeth 2b are spaced in accordance with the spacing between successive imprints of the typewriter, and the margin stops 4 and 5 can be ad justed along the rail 2 by means of a handle 40 or 5a.
  • Margin stops 4 and 5 have pivots 6 and 7, on which control levers 8 and 9, respectively, are mounted for angular movement.
  • Control levers 8 and 9 have engaging portions 10 and 11 which cooperate with an abutment 12 secured to a carriage 3 which supports the type carrier head 3a for movement parallel to the rail 2, by means of rails 3b and 30, as shown in FIG. 2.
  • the carriage 3 has another abutment in the form of a pin 26 whose func- 'tion will be explained hereinafter.
  • Control levers 8 and 9 have hubs 13 and 14 which support torsion centering springs 15 which serve the purpose of holding the control levers 8 and 9 in a central position.
  • the legs of the springs 15 are located on opposite sides of, and resiliently engage, two studs 16 and 17, the studs 16 being secured to the control levers 8 and 9, and the studs 17 secured to the margin stops 4 and 5. Consequently, control levers 8 and 9 are angularly displaceable in opposite directions against the action of the centering spring 15, and are resiliently arrested in the central position.
  • the control levers 8 and 9 of the margin stops 4 and 5 have at the lower end thereof, pins or lugs 18 and 19, respectively, which are located on opposite sides of an elongated bail portion 200 of a control bail means which further includes an actuating lever 22 mounted on a journal portion 21 at one end of the bail 20.
  • the journal portion 53 at the other end of the bail is connected by curved portion 54 with the elongated bail portion 20a, as seen in FIG. 5 which illustrates a modified construction in which a spring 50 is wound on the journal portion 53 and has two legs 50a located on opposite sides of the bail portion 20a, and also on opposite sides of a pin or stud 52 secured to the bracket 1a which has a bearing 1a for journal 53.
  • a corresponding bearing 1a is provided in the other bracket 1a for the journal portion 21.
  • Brackets la are secured to the frame 1 of the typewriter.
  • the lugs or pins 18, 19 are located directly above and below the elongated bail portion 20a when the control levers 8 and 9 are held in the central position thereof by springs 15.
  • the elongated bail portion 200 is parallel to the margin stop rail 2 and is long enough for cooperation with the lugs 18 and '19 in any adjusted position of the margin stops 4 and 5.
  • the bail 20 is also centered in a position of rest shown at I in FIGS. 1, 2, 3, and 3c.
  • the first step 40 of the abutment 12 on the carriage 3 engages the engaging portion 11 of the first control lever 9 and turns the same together with lug 19 so that control bail 20 is turned from the position of rest I, see FIGS. 2 and 3, to the first control position II, see FIG. 2, so that the actuating lever 22 is turned in clockwise direction as viewed in FIG. 3a.
  • the second step 41 of the abutment 12 engages the engaging portion 11 of the first control lever 9 so that the lug 19 thereof turns control bail 20 further in clockwise direction as viewed in FIG. 2 to another first control position III.
  • Actuating lever 22 which turns with the control bail 20 about a common axis. has two arms 23 and 24, and arm 23 is provided with a slanted engaging portion 25 cooperating with the pin 26 secured to carriage 3.
  • Arm 24 of actuating lever 22 has a guide pin 27 at the free end thereof which is located in a first slot 28 of a first link 30 and in a second slot 29 of a second link 31, as shown in FIG. 3.
  • the illustration of FIGS. 3, 3a, 3b and 3c is schematic inasmuch as it shows two guide pins 27, but only one guide pin 27 is preferably used, and passes through both slots 28 and 29 of the links 30 and 31, as shown in FIG. 1.
  • the first link 30 is part of first function performing means 98 which include signalling means 32 and type key locking means 33.
  • the signalling means 32 include a double armed lever 82 mounted on a stationary pivot 83 for angular movement, and having a pin 84 located in a slot 85 of link 30.
  • the double armed lever 82 is biased by a spring 83a in clockwise direction about its pivot 83 and carries at its lower end a pawl 82a.
  • a resilient striker 86 has a projection 88 which engages pawl 82a during movement of the control bail 20 with actuating lever 22 and pin 27 from the position of rest I to the first control position II shown in FIG. 3a.
  • the striker 86 is first resiliently displaced, and than is returned by its resiliency to hit the bell 87 so that a sound indicates the arrival of the carriage 3 and type carrier 3a near the end of the typed line.
  • the locking means 33 include a lever 89 with a locking element 92, turnable about a pin 90 and biased by spring 93 which is secured to stationary part 93a.
  • Lever 89 carries a pin 91 located in a slot 42 of the link 30.
  • the ends 71 and 72 of a carriage return cord are connected to opposite sides of the carriage 3, as best seen in FIG. 1.
  • the carriage return cord 70 is guided over guide rollers 73 and 74, mounted on the machine frame 1 on pins and 76, and passes in several loops over a carriage return drum 77, fixedly connected with an escapement gear 78 which cooperates with an escapement pawl 44 during the step wise movement of Link 31 of the second function performing means 99 is connected with the clutch control lever 34 which cooperates with a projection 81 on clutch 37.
  • a spring 96 biases clutch control lever 34 to turn about a shaft 34a in clockwise direction, but in the position of rest of the control bail means 20, 22, an arresting lever 35, turnable about a pivot 35a, engages with the arresting portion 35b the end portion 34b of the clutch control lever 34 and holds the same in the position shown in FIG. 3
  • the spring 96 turns clutch control lever 34 in clockwise direction to release clutch projection 81 so that clutch 37 engages and drives the carriage 3 in the return direction until projection 43 on the abutment 12 of carriage 3 engages the engaging portion of control lever 8, and turns control lever 8 in counterclockwise direction so that the lug l8 displaces the control bail to a second control position IV shown in chain lines in FIGS. 1, 2 and 30.
  • the displacement of actuating lever 22 to the second control position IV transmits through pin 27 and slot 29, a turning moment on the clutch control lever 34 against the action of spring 96 so that clutch control lever 34 is placed in the path of movement of clutch projection 81, is engaged by the same, and disengages the clutch 37 so that the carriage 3 is stopped in the left end position.
  • control bail 20 angularly displaces control lever 8 without any effect.
  • the engaging portion 11 slides off the abutment 12 of the carriage 3 moving to the left
  • the first control lever 9 is returned by its centering spring 15 to a central position in which it is resiliently arrested.
  • the centering spring 15 of margin stop 4 returns the control lever 8 to the central position, while the control bail means 20, 22 is returned to the position of rest by the lug 18.
  • clutch control lever 34 When upon operation of the carriage return key 36, clutch control lever 34, turned clockwise by spring96 into engagement with the projection 350 on arresting lever 35, moves the link 31 to the left, the right end of the slot 29 assumes a preparatory position in relation to pin 27.
  • abutment 12 engages with projection 43 the engaging portion 10 of the second control lever 8, the same turns in counterclockwise direction as viewed in FIG. 1, so that the lug 18 turns control bail means 20, 22 in counterclockwise direction to the second control position IV, shown in chain lines in FIGS. 1, 2 and 30.
  • Pin 27 of the actuating lever 22 pulls, through link 31, the clutch control lever 34 to the position arrested by arresting lever 35, so that the carriage drive clutch 37 is disengaged.
  • the return of the second control lever 8 by the centering spring 15, and the return of the control bail means 20, 22 by the centering spring 15 of the first control lever 9, is carried out during the first writing steps of the type carrier carriage to the right.
  • the margin stop rail 2 is turned by operation of a margin stop control key 60 about its axis 61, as best seen in FIG. 2.
  • the respective control lever 8 is also tilted so that its engaging end portion 10 is tilted to the position 10a shown in broken lines in FIG. 2, located outward of the path of the projection 43 so that the carriage -3 can continue its return movement.
  • the margin stop 5 with control lever 9 is tilted in the same manner by operation of key 60 so that projections or stops 40 and 41 of abutment 12 can pass the margin stop 5.
  • control bail means 20, 22 is held in a central position of rest by the lugs 18 and 19 of control levers 8 and 9, and angular movement of the control bail means 20, 22 out of the position of rest to the first'or second control positions is resiliently resisted by springs 15.
  • a cen-' tering spring 50 is provided which directly acts on the control bail 20 and abuts with one leg 50a on a fixed pin 52 secured to the bracket 1a of the frame 1.
  • Spring 50 is wound on the journal and portion 53, and biases the control bail 20 to the central position of rest.
  • control levers 9 and 8 shown in FIG. 4, abut with lugs 18 and 19 on opposite sides of the elongated bail portion 20a, and are biased by springs 51 wound about hubs 13 and 14 of control levers 8 and 9 to bias the control bail 20 to the central position of rest.
  • springs 51 wound about hubs 13 and 14 of control levers 8 and 9 to bias the control bail 20 to the central position of rest.
  • the force of springs 51 is substantially smaller than the force of the centering springs of the embodiment of FIGS. 1 to 3.
  • the signalling means 32 and the type key locking means 33 are related to functions required at the end of a typed line, and constitute, together with link 30, first function performing means 98.
  • the clutch operating device constitutes a second function performing means 99 for performing a function required after a return movement of the carriage 3.
  • Other functions related to the end and beginning of a typed line may be carried out by the first function performing means 98, and by the second function performing means 99.
  • a line spacing device may be operated by the second function performing means 99.
  • another second margin stop not shown in the drawing, may be provided, which angularly displaces the control bail means 20, 22 a greater angle than the above-described second margin stop 4.
  • an embodiment of the invention comprises a margin stop rail 2; a first margin stop 5 and a second margin stop 4 adjustably mounted on the margin stop rail 2 and being associated with the end and the beginning of a typed line, respectively; control bail means 20, 22 mounted for angular movement between at least one first control position ll, at least one second control position IV, and an intermediate position of rest I, about an axis parallel with the margin stop rail 2, and including an elongated bail portion 200 parallel to said axis and extending to the first and second margin stops 5 and 4; biasing means 15, 8, 9, 50 holding said control bail means 20, 22 in the position of rest, and including first ll, 9, 19 and second 10, 8, 18 control means movably mounted at pivots 7 and 6 on the first and second margin stops 5 and 4, respectively, and engaging said bail portion a from opposite sides; a typewriter carriage 3 mounted for movement parallel to the margin stop rail 2 in a writing direction to a first actuating position engaging and displacing the first control means 11, 9, 19 so that the control
  • first margin stop and a second margin stop adjustably mounted on said margin stop rail and being associated with the end and the beginning of a typed line, respectively;
  • control bail means mounted for angular movement between at least one first control position, at least one second control position, and an intermediate position of rest, about an axis parallel with said margin stop rail, and including an elongated bail portion parallel to said axis and extending to said first and second margin stops;
  • biasing means for holding said control bail means in said position of rest, and including first and second control means movably mounted on said first and second margin stops, respectively, and engaging said bail portion from opposite sides;
  • a typewriter carriage mounted for movement parallel to said margin stop rail in a writing direction to a first actuating position engaging and displacing said first control means so that said control bail means is shifted to said first control position, and also movable in a return direction to a second actuating position engaging and displacing said second control means so that said control bail means is shifted to said second control position;
  • first and second function performing means actuated by said control bail means in said first and second control positions, respectively, to perform first and second functions, respectively, required at the end and the beginning of a typed line.
  • Margin stop arrangement as claimed in claim 1, wherein said first function performing means include signalling means for acoustically indicating the approaching end of a typed line.
  • Margin stop arrangement as claimed in claim 1, comprising manually operated typewriter keys; and wherein said first function performing means include locking means for locking said typewriter keys in a position of rest.
  • said first function performing means include signalling means for acoustically indicating the approaching end of a typed line, and comprising manually operated typewriter keys; and wherein said first function performing means include locking means for locking said typewriter keys in a position of rest.
  • Margin stop arrangement as claimed in claim 1, further comprising drive means for returning said carriage to said second actuating position; and a carriage return key for actuating said drive means; and wherein said second function performing means include means for rendering said drive means inactive so that said carwherein said drive means include a clutch biased to an engaged position in which said carriage is driven in said return direction; and wherein said inactive rendering means of said second function performing means cause disengagement of said clutch when actuated by said control bail means in said second control position.
  • first and second control means include first and second control levers, respectively, mounted on said first and second margin stops, respectively, for angular movement and wherein said biasing means include first and second springs mounted on said first and second margin stops respectively, for holding said first and second control levers on opposite sides of said elongated bail portion so that said control bail means are biased from said first and second control positions to said position of rest.
  • Margin stop arrangement as claimed in claim 7, comprising a supporting frame having a fixed pin, and bearings mounted on said frame along said axis; wherein said control bail means include journal end portions mounted in said bearings for angular movement; and wherein said biasing means include spring means wound on at least one of said journal end portions and engaging said elongated bail portion and said pin for holding said control bail means in said intermediate position of rest.
  • Margin stop arrangement as claimed in claim 7, comprising a supporting frame; and bearings mounted on said frame along said axis; wherein said control bail means include journal end portions mounted in said bearings for angular movement so that said control bail means can turn between said first and second control positions; and wherein said biasing means includes spring means abutting said frame and said control bail means for resiliently biasing said control bail means to said position of rest, and being tensioned in said first and second control positions of said control bail means.
  • Margin stop arrangement as claimed in claim 7, wherein said first and second control levers have hub portions, and said first and second margin stops have fixed first and second pivots located in said hub portions; and wherein said first and second springs have portions would on said hub portions, and first and second pairs of legs; wherein said first and second margin stops include abutment studs located between said first and second pairs of legs, respectively, and wherein said control levers include first and second abutment studs located between said first and second pairs of legs, respectively, so that said first and second control levers assume a central position located on opposite sides of said elongated bail portion.
  • control bail means includes a bail having said elongated bail portion, arm portions, and journal end portions mounting said bail for turning movement about said axis, and actuating means secured to one of said journal end portions for angular movement with said bail, and actuating said first and second function performing means in said first and second control positions of said control bail means.
  • said actuating means includes an actuating lever secured to said journal end portion for angular movement therewith about said axis, and having a free end carrying a pin means; wherein said first function performing means include a first link having a first slot in which said pin means is located; and wherein said second function performing means includes a second link having a second slot in which said pin means is located so that said actuating means can actuate one of said function performing means through the respective link when said pin means abuts one end of the respective slot, while the respective other function performing means is not actuated due to movement of said pin means in the respective other slot.
  • said second function performing means include drive means for moving said carriage in said return direction; wherein said actuating means include an actuating lever secured to said journal end portion for angular movement therewith about said axis and having an end formed with a slanted guide face; wherein said carriage has a main abutment engaging said first and secone control means in said first and second actuating positions, and another abutment for engaging said slanted guide face of said actuating lever if said second margin stop is inactivated whereby said control bail means is turned to said second control position for actuating said second function performing means, said second function performing means stopping said drive means when actuated by said control bail means in said second control position.
US00315662A 1971-12-16 1972-12-15 Function controlling margin stop arrangement Expired - Lifetime US3834509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2162431A DE2162431C3 (de) 1971-12-16 1971-12-16 Einrichtung an motorisch betriebenen Schreibmaschinen mit einem Typenträgerwagen, der mit Randstelleranschlägen versehen ist

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US00315662A Expired - Lifetime US3834509A (en) 1971-12-16 1972-12-15 Function controlling margin stop arrangement

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US853562A (en) * 1907-02-18 1907-05-14 Underwood Typewriter Co Type-writing machine.
US892627A (en) * 1905-12-01 1908-07-07 Monarch Typewriter Co Type-writer machine.
US1428886A (en) * 1919-02-25 1922-09-12 Underwood Typewriter Co Typewriting machine
US1531854A (en) * 1922-06-14 1925-03-31 Underwood Typewriter Co Combined typewriting and computing machine
US1931383A (en) * 1929-10-15 1933-10-17 Remington Typewriter Co Typewriting machine
US3547245A (en) * 1968-01-09 1970-12-15 Ibm Multiple pitch margin control
US3572487A (en) * 1969-05-01 1971-03-30 Singer Co Margin control structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US892627A (en) * 1905-12-01 1908-07-07 Monarch Typewriter Co Type-writer machine.
US853562A (en) * 1907-02-18 1907-05-14 Underwood Typewriter Co Type-writing machine.
US1428886A (en) * 1919-02-25 1922-09-12 Underwood Typewriter Co Typewriting machine
US1531854A (en) * 1922-06-14 1925-03-31 Underwood Typewriter Co Combined typewriting and computing machine
US1931383A (en) * 1929-10-15 1933-10-17 Remington Typewriter Co Typewriting machine
US3547245A (en) * 1968-01-09 1970-12-15 Ibm Multiple pitch margin control
US3572487A (en) * 1969-05-01 1971-03-30 Singer Co Margin control structure

Also Published As

Publication number Publication date
JPS4868314A (de) 1973-09-18
DE2162431C3 (de) 1974-10-31
DE2162431B2 (de) 1974-04-04
DE2162431A1 (de) 1973-07-05

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