Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS2971625 A
Publication typeGrant
Publication dateFeb 14, 1961
Filing dateJan 13, 1959
Priority dateJan 18, 1958
Publication numberUS 2971625 A, US 2971625A, US-A-2971625, US2971625 A, US2971625A
InventorsAlbert Rix
Original AssigneeOlympia Werke Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Repeat actuation arrangement for typewriters
US 2971625 A
Images(2)
Previous page
Next page
Description  (OCR text may contain errors)

ga -b Feb. 14, 1961 A. RIX 2,971,625

REPEAT ACTUATION ARRANGEMENT FOR TYPEWRITEIRS Filed Jan. 13, 1959 2 Sheets-Sheet 1 INVENTOR 105/ u-/ IV? '6,"

Feb. 14, 1961 R|X I 2,971,625

REPEAT ACTUATION ARRANGEMENT FOR TYPEWRITERS Filed Jan. 13, 1959 2 Sheets-Sheet 2' \wil vvd INVENTOP flflerl' IP11;

United States Patent REPEAT ACTUATION ARRANGEDJENT FOR TYPEWRII'ERS Albert Rix, Wilhelmshaven, Hoifhausen, Germany, assignor to Olympia Werke A.G., Wilhelmshaven, Germany Filed Jan. 13, 1959, Ser. No. 786,495

Claims priority, application Germany Jan. 18, 1958 20 Claims. (Cl. 197-17) The present invention relates to a repeat actuation arrangement for typewriters, and more particularly to a repeat actuation arrangement for type lever actions.

The present invention is particularly suited for electric typewriters, and other ofiice machines, which are provided with a continuously rotating drive drum, which, when connected to a type lever action, actuates the respective type lever. Typewriters according to the prior art, which include this drive arrangement, effect a single actuation of each type lever when the respective key is depressed.

It is one object of the present invention to provide a business machine capable of repeated actuations of an actuatable means, such as a type lever action.

Another object of the present invention is to provide a business machine with means for setting the machine to a condition in which repeated actuation of each type lever action will take place when the respective key is depressed.

Another object of the present invention is to provide in an electric typewriter means for setting all type lever actions to perform automatically repeated operations which are terminated by release of the key.

Another object of the present invention is to provide in an electric typewriter means shiftable to one position for setting the typewriter to automatically repeat operations, and shiftable to another position for setting the typewriter to perform only single operaions when actuated.

With these objects in view, the present invention mainly consists in a repeat actuation arrangement for typewriters, and more particularly for the type lever actlons of a typewriter. The repeat actuation arrangement of the present invention comprises a rotary drive means, such as a drum which is continuously rotated; a member movable between an inoperative position, a first operative position, and a second operative position and being spaced.from the rotary drive drum in the inoperative position thereof; actuatable means, such as a type lever action, operatively connected to the movable member so as to be actuated by the same during movement from the first operative position to the second operative position; means for moving the movable member from the inoperative position to the first operative position in which the drive drum frictionally engages the movable member to move the same from the first operative position to the second operative position; and control means movable to a blocking positionlocated in the path of movement of the movable member for blocking return movement of the same before it arrives in the inoperative position. In this manner, the drive drum actuates the type lever action through the movable member while the same is moved by the drive drum from the first operative position to the second operative position, and whenever the movable'member tends to return to its inoper' ative position, it is blocked by the control means and again engaged and driven by the drive drum to repeat its actuating movement.

Patented Feb. 14, 1961 In the preferred embodiment of the present invention, the movable member is turnably mounted on a carrier which is shifted by manually operated means to move the turnable member into a position in which it is engaged by the drive drum. During return movement of the turnable member, the carrier means assumes a retracted posi-' tion permitting the turnable member to return to its first operative position without being engaged by the drive drum.

The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

Fig. l is a side view, partly in section, illustrating the normal inoperative position of'a repeat actuation arrangement of the present invention; and

Fig. 2 is a side view of the same embodiment illustrat-v ing a different operational position.

Referring now to the drawings, a plurality of carrier lever means 20 is mounted on a support for turning movement about shaft means 21. A stationary member 23 has a plurality of slots 230, each slot guiding a carrier lever means 20 for turning movement about shaft means 21 between two end positions. A spring 22 urges each carrier lever means to turn in counterclockwise direction as viewed in Figs. 1 and 2. Only the foremost carrier lever means 20 is visible in Fig. l and Fig. 2.

Each carrier lever means turnably supports a turnable member 15 on a pin 15d. Each turnable member 15 has a segment-shaped engaging portion 15a which has anarcuate surface cooperating with the surface of the drive drum means 16. Each turnable member 15 has a projection-15a, an arm 15b on which a roller means 14 is mounted, and another arm having a projection.

Roller means 14 cooperates with a guide surface '8 of an angular lever 4 which is turnable on a pin 4a mounted on a movable support 2. Support 2 is turnable about a pivot pin 3 on a stationary support 1 and is urged by a spring 17 to the illustrated position in which further movement is prevented by the roller 11 on support '2 engaging a cam 10. Cam 10 can be turned by gear means 13 and a hand wheel 12 having projections 18 and re' cessed portions 19 so that the position of the movable support 2, and of lever 4 may be adjusted. This arrangement is not an object of the present invention, and the present invention would be operative even if pin 21 would be mounted on a stationary support.

Each angular lever 4 is connected by a link 6 to an intermediate lever 5 which is turnably mounted on support 1 and forms part of a type lever action. A spring 5a connects lever 5 with lever 4 and urges lever 4, and thereby turnable member 15 into the normal position i1- lustrated in Fig. 1. In this normal position, spring 22 holds carrier lever means 20 in the illustrated normal position abutting against one end of the respective slot 230.

A plurality of keys, 24a are provided to form a keyboard. Only one key 24a is shown in the drawing, but it will be understood that-at least a row of keys 24a is provided which are respectivelyassociated with a group of elements 20, 15, 4, 6, and 5. Each key 24:: is mounted on a shiftable articulated support including two links 27 pivotally mounted at 26 on a support 26-9, and turnably connected by pins 29 to the bar on which key 24a,is mounted. A part 241 of the articulated supportis connected by spring 242 to a lever 243. Another spring 244 urges the articulated support 24 to its normal position shown in Fig. 1. A coupling member 25 is pivotally mounted on the arm 245 of the articulated support 24, and is urged by a spring 246 into the position illustrated in Fig, l. A rigid guide member. 34 has a plurality .of slots 34a guiding coupling members 25 and determining the normal end position of coupling members. 25.

Each turnable member 15 is associated with a blocking member 28 shown to be a lever pivotally mounted on pin 26 and having a transverse projecting portion 28b cooperating with projection 152 of the turnable member 15. Each blocking member 28 passes through a slot in the guide member 34, and is urged by a spring 33 attached to guide member 34 to move to the illustrated normal position in which a shoulder 280 abuts against a portion of 'a control member 30 which is 'pivotally mount ed in the stationary frame 'of the machine for turning movement about shaft means 31. The free end of control member 30 has a handle 32 for manual operation. By operation of handle. 32, control member 30 can be shifted to the position shown in Fig. 2 in which another shoulder 281 engages control member 30. Between shoulders 280, 281, an'inclined guide face 282 is provided. The portion 301 of control member 30 extends across all blocking lever members 28, so that all blocking members 28 will move from the position shown in Fig. 1 to the position shown in Fig. 2 under the action of springs 33 when control member 30, 32 is shifted to the position shown in Fig. 2. When control member 30, 32 is moved back to the position of Fig. l, the controlportion 301 will slide along the guide face 282 and raise all control members 28 to the inoperative normal position shown in Fig. 2 against the action of springs 33. Since each control member 28 alsorests on an enlarged portion of pin 29 in the normal position of Fig. 1, the control members 28 can only remain in the operative position shown in Fig. 2 as long as the respective key 24a is held in depressed position. When key 240 is released, spring 244 returns the articulated support 24to its normal position, so that pin 29 engages the respective control member 28 and restores the same to its normal position against the action of spring 33.

a The apparatus illustrated in Figs. 1 and 2 operates. in the following manner:

When a selected key 24a is depressed in the position shown in Fig. 1, the blocking member 28 remains in the illustrated position since it is blocked by the blocking portion 301 of control member 30. Coupling member 25 engages projection 150 of turnable member 15, and since spring 5a is stronger than spring 22, carrier lever means 20 will be turned through a small an le in clockwise direction about pin 21 before the turnable member is also turned by coupling member 25. In this manner, the turning axis of member 15 is moved closer to the surface of rotary drum 16. and when turnable member 15 is slightly turned by coupling member 25, the surface of drum 16 frictionally enga es the surface of the arcuate portion 15a and turns turnable member 15 in clockwise direction. This effects counterclockwise turning of angular lever 4 with roller 14 rolling on guide surface 8. The turning movement of lever 4 is transmitted by link 6 to lever 5 which is part of a type lever action, not shown, so that the respective tyne le er is actuated and performs a printing operation. In this manner, member 15 moves between the inoperative position shown in Fig. 1, a first operative position shown in Fig. 2, and a second operative position, not shown, in which member 15 is further turned in clockwise direction until the surface of the drive drum engages the other end of the arcuate portion 15a.

The angular lever 4 turns through a greater angle than member 15, since during the final movement of the type lever action the type lever moves by inertia; Consequently, roller 14 is released by the guide surface 8 of lever 4 when member 15 arrives in its second operative position. Due to this release, spring 22isstrong enough to turn carrier lever means back in counterclockwise direction from the position shown in Fig. 2 to the position shown in Fig. 1 so that pin 15d is raised, and the arcuate portion 15a of member 15 is separated from the surface of the drive drum 16. A moment later, guide surface 8 again engages roller 14 under the action of spring 5a, and member 15 is turned by lever 4 in counterclockwise direction toward the inoperative position shown in Fig. 1. During such movement, the drive drum cannot engage the returning member 15 so that a single actuation of the type lever action is effected. If a repeated actuation of one or several type lever actions is desired, control member 30, 32 isshifted to the position shown in Fig. 2. Blocking members 28 tend to turn in counterclockwise direction under the action of the respective springs 33, but are at first held by projections 15c since springs 5a are strong enough to hold member 15 in the inoperative position shown in Fig. 1.

Thereupon, a selected key 24a is depressed, so that coupling member 25 engages the respective projection 15c, and first turns the carrier lever means 20 so that pin 15d moves closer to the drive drum 16, and then turns turnable member 15 to the first operative position illustrated in Fig. 2.

In this position, projection 15e has released the respective blocking member 28 so that the same is turned by the associated spring 33 until the second shoulder 281 abuts against blocking bar 301, as shown in Fig. 2.

Drive drum 16 engages member 15 in the position shown in Fig. 2 and turns the same to its second operative position, not shown, in which the type lever action is actuated. As explained above, during the last part of the movement of the type lever, lever 4 moves away from roller 14, so that spring 22 is strong enough to turn carrier lever means 20 in counterclockwise direction, retracting pin 15d, and therewith member 15 from the surface of drum 16. Thereupon, guide surface 8 of lever 4 again engages roller 14, and turns member 15 under the action of spring 5a in a counterclockwise return movement until projection 15c engages the respective blocking member 28 so that member 15 cannot return to its normal inoperative position shown in Fig. 1.

Spring 5a continues to urge lever 4 to turn in clockwise direction, but further turning movement of member 15 in counter clockwise direction is prevented by blocking lever 28. Consequently, the pressure of lever 4 against roller 14 is transmitted to pin 15d, and carrier lever means 20 is turned in clockwise direction against the action of spring 22 so that pin 15d approachesdrum 16, and member 15 moves toward the surface of drum 16 and again engages the surface of drum 16 in the first operative position illustrated in Fig. 2. It is apparent that drum 16 will turn member 15 from the first operative position again to its second operative position, and that the operation will be repeated as long as blocking member 28 prevents return of member'15 to the inoperative position shown in Fig. 1. During the repeated actuation of member 15 and of the type lever action through lever 5, carrier lever means 20 is eifectiveto withdraw engaging portion 15a during the return movement of turnable member 15, and to advance the engaging portion 15a when the return movement is completed by engagement between projection 15c and blocking lever 28. V

The repeated actuation of the type lever action can be terminated in two ways. If key 24a is released, spring 244 will turn the articulated support 24 from the position shown in Fig.2 to the position shown in Fig. 1, and a thicker portion of pin 29 will engage blocking lever 28 and turn the same in clockwise direction to the posi tion shown in Fig. 1, so that member 15 can return to its inoperative position shown in Fig. 1. This leaves control member30, 32, 301 in its actuated position so that depression'of any key 24a will effect a repeated actuation of the respective corresponding type leveraction.

However, when control member 30, 32, 301 is manually shifted from the actuated position shown in Fig. 2 to the normal position shown inFig. 1, the edge of bar 301 will slide along the guide face'282 turning all control members 28 to normal positions until shoulders 280 rest again on blocking bar 301. This will terminate repeat actuations, even if a key 24a is held depressed. In this position of control means 30, 32, 301, actuation of any key 240 will result in a single actuation of the respective associated type lever action, as explained above.

In the described embodiment of the present invention, lever 5 is part of a type lever action. Itwill be appreciated, however, that lever 5 may be connected to an escapement mechanism, and that the respective key 24:: could be a space bar, so that repeat actuation of the escapement mechanism could be efiected by the arrangement of the present invention.

In the same manner, lever 5 could be connected to any other actuatable means of the business machine for which a choice between a single actuation, and an automatically repeated actuation is desired.

It will be understood that each of the elements described above, or two or moretogether, may also find a useful application in other types of business machines differing from the types described above.

While the invention has been illustrated and described as embodied in a repeat actuation arrangement for the type lever actions of an electric typewriter, it is not in? tended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.

Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can by applying current knowledge readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the following claims.

What is claimed as new and desired to be secured by Letters Patent is:

1. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means; carrier means movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a turnable member movably mounted on said carrier means for turning movement between an inoperative position, a first operative position and a second operativeposition, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position when said carrier means as in said operative position so as to be moved by said drive means to said second operative position; actuatable means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said carrier means from said normal position to said operative position, and for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said actuatable means; and control means movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said actuatable means.

2. Repeat actuation arrangement for type lever actions, comprising, in combination, a rotary drive means; carrier means movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a turnable member movably mounted on said carrier means for turning movement between an inoperative position, a first operative position and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position when said carrier means is in said operative position so as to be moved by said drive means to said second operative position; follower means mounted on said turnable member; type lever action means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position, said type lever action means including a part having a guide face normally en-' gaged by said follower means and moving away from the same during movement of said type lever action means to a terminal position corresponding to a printing impact; manually operated means for moving said carrier means from said normal pcsition to said operative position, and for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said type lever action means resulting in release of said follower means by said guide face so that said carrier means returns to said normal position together with said turnable member during return movement of said turnable member toward said inoperative position whereby said turnable member is not engaged by said drive means during return movement;

and control means movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in'said first operative position whereby said part of said type lever action acts through said follower means and said turnable member on said carrier means to move said carrier means to said operative position so that said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said type lever action means.

3. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means; a turnable member turnable between an inoperative position, a first operative position, and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position so as to be moved by said drive means to said second operative position; actuatable means 'operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said actuatable means; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said actuatable means; means connected to said blocking member and urging the same to move to said blocking position; and a manually operated control member movable between a normal position-engaging and blocking said blocking member in said normal inoperative position antes and an actuated position releasing said blocking member for movement to said blocking position.

4. Repeat actuation arrangement for. typewriters, comprising, in combination, a rotary drive means; a turnable member turnable between an inoperative position, a first operative position, and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said'drive means in said first operative position so as to be moved by said drive means to said second operative position; actuatable means operatively con-, nected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to saidsecond operative position for actuating said actuatable means, said manually operated means including a shiftable articulated support and a key on said support, said support and said key tending to return to a normal position; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to etfect repeated actuations of said actuatable means, said blocking member in said normal position being engaged by a portion of said support; means connected to said blocking member and urging the same to move to said blocking position; and a manually operated control member movable between a normal position engaging and blocking said blocking member in. said normal inoperative position'and an actu- 'ated position releasing said blocking member for movement to said blocking position, said blocking member being moved to said normal inoperative position by said portion of said support when said support and said key return to said normal position.

5. An arrangement as set forth in claim 4, wherein said' shiftable articulated support includes two parallel links turnably mounted at one pair of ends thereof, and a bar articulated to the other pair of ends of said links and carrying said key; and wherein said portion is a pin secured to 'said bar.

6. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means, a turnable member turnable between an inoperative position, a first operative position, and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative .position, said turnable member engagingsaid drive means in said first operative position so as to be moved by said drive means to said second operative position; actuatable means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said turnable member from said inoperative position to' said first operative position so that said drive means moves said turnable member to said second operative position for actuating said actuatable means; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said actuatable means; means connected to said blocking member and urging the same to move to said blocking position; and a manually operated control member movable between a normal position engagingand blocking said blocking member in said nor- 8 mal inoperative position and an actuated position releasing said blocking member for movement to said blocking position, said control member shifting said blocking member to said normal inoperative position of the same when manually returned to said normal position thereof.

7. Repeat actuation arrangement fortypewriters, comprising, in combination, a rotary drive means; a turnable member turnable between an inoperative position, a first operative position, and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position so as to be moved by said drive means to said second operative position; actuatable means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said. actuatable means, said manually operated means including a shiftable articulated support and a key on said support, said support and said key tending to return to a normal position; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to efiect repeated actuations of said actuatable means, said blocking member in said normal position being engaged by a portion of said support; means connected to said blocking member and urging the same to move to said blocking position; and a manually operated control member movable between a normal position engaging and blocking said blocking member in said normal inoperative position and an actuated position releasing said blocking member for movement to said blocking position, said control member shifting said blocking member to said normal inoperative position of the same when manually returned to said normal position thereof, said blocking member being moved to said normal inoperative position by said portion of said support when said support and said key return to said normal position.

8. An arrangement as set forth in claim 7, wherein said blocking member has a guide face and a pair of abutment faces on opposite ends of said guide face; and wherein said control member has a portion engaging one of said abutment faces in said normal position, and the other of said abutment faces in said actuated position,

and sliding on said guide face during movement of said control member between said position-s thereof.

9. Repeat actuation arrangement for type lever actions, comprising, in combination, a rotary drive means; carrier means movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a turnable member movably mounted on said carrier means for turning movement between an inoperative position, a first operative position and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position when said carrier means is in said operative position so as to be moved by said drive means to said second operative position; type lever action means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position 'to said second operative position; manually operated means for moving said carrier means from said normal position to said operative position, and for moving said 9. turnable member from said inoperative 'position to said first'operative position so that saiddrive means moves said turnable member to said second operative position for actuating said type lever' action means;ia blocking member movable between a normal inoperative position and a blocking position located in the path of'movement of said turnablemember for blocking return'movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said type lever action means; means connected to sa;d blocking member and urging the same to move to said blockingposition; and a manually operated control member movable between a normal position engaging and blocking said blocking member in said normal inoperative posiLon and an actuated position releasing said blocking member for movement to said blocking position.

10. Repeat actuation arrangement for type lever actions, comprising, in combination, a rotary drive means; carrier means movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a turnable member movably mounted on said carrier means for turning movement between an inoperative position, a first operative position and a second operative position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position when said carrier means is in said operative position so as to'be moved by said drive means to saidsecond operative position; type lever action means operatively connected tosaid turnable member so am be actuated by the same during'movement from said first operative position to said second operative position; manually operated means for moving said carrier means from said normal position to said operative position, and for moving said turnable member from sa d inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said type lever action means, said manually operated means including a shiftable articulated support and a key on said support, said support and said key tending to return-to a normal position; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to eflect repeated actuations of saidtype lever action means, said blocking member in said normal position being engaged by a portion of said support; means connected to said blocking member and urging the same to move to said blocking position; and a'manually operated control member movable between a normal position engaging and blocking said blocking ,member in said normal inoperative position and an actuated position releasing said blocking member for movement to said blocking position, said blocking member being moved to said normal inoperative position by said portion of said support when said support and said key return to said normal position.

11. An arrangement as set forth in claim 10, wherein said shiftable articulated support includes two parallel links turnably mounted at one'pair of ends thereof, and

12. Repeat actuation arrangement for type lever actions, comprising, in combination, a rotary drive means;

carrier means movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a turnable member movably mounted on said carrier means for turning movement between aninoperative position, a first operative position and a second operative'position, said turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, said turnable member engaging said drive means in said first operative position when said carrier means is in said operative position so as to be moved by saiddrive means to said second operative position; type lever action means operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said carrier means from said normal position to said operative position, and for moving said turnable member from said inoperative position to said first operative position so that said drive means moves said turnable member to said second operative position for actuating said type lever action means, said manually operated means including a shiftable articulated support and a key on said support, said support and said key tending to return to a normal position; a blocking member movable between a normal inoperative position and a blocking position located in the path of movement of said turnable member for blocking return movement of the same in said first operative position whereby said drive means moves said turnable member repeatedly between said first and second operative positions to effect repeated actuations of said type lever action means, said blocking. member in said normal position being engaged by a portion of said support; means connected to said blocking member and urging the same to move to said blocking position; and a manually operated control member movable between a normal position engaging and blocking said blocking member in said normal inoperative position and an actuated position releasing said blocking memberfor movement to said blocking position, said control member shifting said blocking member to said .normal inoperative position of the same when manually returned to said normal position thereof, said blocking member being movedto said normal inoperative position by said tion, a first operative position and a second operative posi.-.

tion, said turnable member tending to return to said inoperative position and being spaced from said rotary drive drum means in said inoperative position, said turnable member engaging said drive drum means in said first operative position when'said carrier means is in said operative position so as to be moved by said drive drum means to sajd second operative position, said turnable member having an arcuate engaging portion cooperating with the surface of said drive drum means, and having aprojection; type lever action means 'operatively connected to said turnable member so as to be actuated by the same during movement from said first operative position to said second operative position; manually operated means for moving said carrier-means from said normal position to said operative position, and for moving said' turnable member from said inoperative position to said first operative position so that said drive drum means moves said turnable member to said second operative position for actuating said type lever action means; and control means movable between a normal inoperative position and a blocking position located in the path of movement of said projection of said turnable member for blocking return move -ment of the same in said first operative position whereby ago'zneao said drive drum means moves said turnable member rev peatedly between said first and second'operative positions to effect repeated actuationsof said type lever action means. a r

14. Repeat actuation arrangement for type lever, ac-l tions, comprising, in combination, a rotary-drive means; a plurality of carrier means,'each carrier means being movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a plurality of turnable members, each member being movably'rnounted on one of said carrier means. for turning movement'between an inoperative position, a first operative position and a second operative position, each turnable member tending to return to said inoperative position and being spaced from. said rotary drive means in said inoperative position, each'turnable member engaging said rotary drive means in said first operative position when the respective carrier means is in said operative position so as'to be moved by said drive means to said second operative position; a plurality of type lever action means, each type lever action means being operatively connected to one of said turnable members so as to be actuated bythe same during movement of the same from said first operative position to said second operative'position; a plurality of manually operated means respectively associated with said. turnable members for moving the respective turnable membertfrorn said in: operative position to said first operative position and for moving the respective carrier means from said normal position to said operative position so that said:dr ive,r'neans moves any turnable memberin said first operative posi tionto said second operative. position'for actuating the corresponding type lever action means;rand control means movable'between a normal inoperative position and a blocking'position located in the paths of movement of said turnable members for blocking return movement of the same in said first operative position whereby said drive means moves an actuated turnable member repeatedly between said first and second operative positions to effect repeated actuations of the respective type lever action means.

15. Repeat actuation arrangement for type lever 'actions, comprising, in combination, a rotary drive means; a plurality of carrier means, each carrier means being movable between a normal position farther spacedrfrom said drive means and an operative positioncloser spaced from said drive means; a plurality of turnable members, eachimember being movably mounted on :one of said carrier means for turning movement between an inoperative position, a first operative position and a second operative position, each turnable member tendingto return to said inoperative position and being spaced from, said rotary drive means in said inoperative position, each turnable member engaging said rotary drive means in said first operative position when the respec'tivecarrier means is in said operative position so as to be moved by said drive 'normalfposition to said operative position, so thattsaid drive means moves any turnable member in said first operative position to said second operative position for actuating thecorrespondingtypelever action. means; a,

plurality of blockinglevers, each blocking lever I being associated with one of saidtturnable members and being movable between a normal inoperative position and a .blocking position located inthe path of movement of the Famous tamablemem e tar mask n tetu inlmor lnem of'thesam'e' in saidfirst operative position whereby said drive means moves said turnable member repeatedly betweenisaid'first and second operativepositions to efiect repeated actuations of said typelever action means; means connected to each blocking lever and urging the same to move to said blocking position; andia manually operated controlmember including a barrextending across said blocking levers and being movable between a normal position blocking said blocking levers in said normal inopera tive positions and an actuated position releasing said blocking levers for'movement to said blocking position.

16. Repeat actuation arrangement for typellever actions, comprising, in combination, a rotary ,drive means; a plurality of carrier means,'each carrier means being movable between anormal position farther, spaced from said drive means and an operative position closer spaced from said drive means; a'plurality of turnable members, each member being movably mounted on one of said carrier means for turning: movement between an inoperative position, a first operative position and a second operative position, each turnable member tending to return to said inoperative position and being spaced from said rotary drive means in said inoperative position, each turnable member engaging said rotarydrive means in said first operative position when the respective carrier'means is in said operativeposition so as to be moved by said drive meansto said second operative position; a plurality of type lever action means, each type lever. action means being operatively connected to one of said turnable members so as to be actuated by the same during movement of the same from said first operative position to said second operative position; 'a'plurality 'of manually operated means respectively associated with said turnable members for moving the'respe'ctive turnable member'from said inoperative position to saidfirst operative position'and for moving the respective carrier means from said normal positiontto said operative position so that said'driye mean'smoves any turnable member in said first operativepositionyto said second operative position for actuating the corresponding type lever action means; a pluralityv of blocking levers, each blocking lever being associated with one'of said turnable members and-being movable between a normal inoperative position'and a blocking position located in the path of movement of the respective turnable member for blocking return movement of the same intsaid first operative position whereby said drive means moves saidturnable member repeatedly between said first. and secondv operative positions to etlect repeated actuations of said type lever action means; means connected to each blockingvlever and urging the same to move to said blocking position; and a manually operated control member including a bar extending across said blocking levers and being movable between a normal position blocking said blocking levers in said normal inoperative position and an actuated position releasing said blocking levers for movement to said blocking position, said bar shifting said blocking'levers to said normal inoperative positions of the same when said bar is moved to said normal position of the same.

17. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means; carrier 7 means movable between anormal position farther spaced fromzsaid drive, means and an operative position closer spaced from said drive means; a member movably mount ed on said carrier means, said member engaging said drive means when said carrier means is in said operative position. so as to be movedj by said drive means; follower means mounted on said memberyactuatable means operatively connected'to said'rnemberso as to be actuated by the same, said actuatable means including a part having arguide face normally engaged by said follower means and moving away from the same during movement of said actuatable means to a terminal position corresponding to a printing impact; manually operated means foramoving said carrier means from said, normal, position to said operative position so that said drive means moves said member for actuating said actuatable means resulting in release of said follower means by said guide face so that said carrier means returns to said normal position together with said member during return movement of said member toward an inoperative position whereby said member is not engaged by said drive means during return movement; and control means movable between a normal inoperative position and a blocking position located in the path of movement of said member for blocking return movement of the same whereby said part of said actuatable means acts through said follower means and said turnable member on said carrier means to move said carrier means to said operative position so that said drive means moves said member repeatedly to efiect repeatedly actuations of said actuatable means.

18. Repeat actuation arrangement for typewriters, comprising, in combination, a frame; a rotary drive means; carrier means mounted on said frame movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a member movably mounted on said carrier means, said member engaging said drive means when said carrier means is in said operative position so as to be moved by said drive means; actuatable means operatively connected to said member so as to be actuated by the same; manually operated means for moving said carrier means from said normal position to said operative position so that said drive means moves said member for actuating said actuatable means; and manually operated control means independent of said manually operated means and movable between a normal inoperative position and a blocking position located in the path of movement of said member for blocking return movement of the same, said control means tending to remain in each of said positions thereof whereby said drive means moves said member repeatedly to effect repeated actuations of said actuatable means whenever said manually operated means is operated while said control means is in said blocking position.

19. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means; a plurality of carrier means, each carrier means being movable be tween a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a plurality of members, each member being movably mounted on one of said carrier means, respectively, each member engaging said rotary drive means when the respective carrier means is in said operative position so as to be moved by said drive means; a plurality of actuatable means, each actuatable means being operatively connected to one of said members so as to be actuated by the same during movement of the same; a plurality of manually operated means operatively connected to said carrier means, respectively, for moving the respective carrier means from said normal position to said operative position so that said drive means moves the respective member for actuating the corresponding actuatable means; and manually operated control means movable between a normal inoperative position and a blocking position located in the paths of movement of all said members for blocking return movement of the same whereby said drive means moves any actuated member repeatedly to effect repeated actuations of the respective actuatable means as long as said control means is in said blocking position.

20. Repeat actuation arrangement for typewriters, comprising, in combination, a rotary drive means; a plurality of spring-loaded carrier means, each carrier means being movable between a normal position farther spaced from said drive means and an operative position closer spaced from said drive means; a plurality of spring-loaded members, each member being movably mounted on one of said carrier means, respectively, each member engaging said rotary drive means when the respective carrier means is in said operative position so as to be moved by said drive means; a plurality of actuatable means, each actuatable means being operatively connected to one of said members so as to be actuated by the same during movement of the same; a plurality of manually operated means operatively connected to said members and carrier means, respectively, for moving first the respective carrier means to said operative position, and for then moving the respective member into operative-connection with said drive means so that said drive means moves the respective member for actuating the corresponding actuatable means; and manually operated control means movable between a normal inoperative position and a blocking position located in the paths of movement of all said spring-loaded members for blocking return movement of the same whereby said drive means moves any actuated member repeatedly to efiect repeated actuations of the respective actuatable means as long as said control means is in said blocking position.

References Cited in the file of this patent UNITED STATES PATENTS 1,789,661 Schulze Jan. 20, 1931 1,929,975 Hokanson Oct. 10, 1933 2,723,740 Toeppen Nov. 15, 1955 2,798,584 Kennedy July 9, 1957 2,905,296 Stuiber et a1. Sept. 22, 1959

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1789661 *Jun 18, 1925Jan 20, 1931Mercedes Buromaschinen Und WafTypewriting machine with power drives
US1929975 *Feb 18, 1927Oct 10, 1933Woodstock Typewriter CoRepeat mechanism for typewriters
US2723740 *Dec 26, 1952Nov 15, 1955IbmType bar action
US2798584 *Jul 8, 1955Jul 9, 1957Smith Corona IncPower actuated typing mechanisms for business machines
US2905296 *Oct 24, 1956Sep 22, 1959Triumph Werke Nuernberg AgType lever actuating mechanism
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3327829 *Jan 25, 1966Jun 27, 1967Friden IncControl-bar key-lever-actuation structure for keyboard mechanism
US3633723 *Feb 17, 1970Jan 11, 1972Sperry Rand CorpPower-operated typewriter
US3789970 *Dec 1, 1971Feb 5, 1974Vaud PStriking device for a typewriter
US3838762 *Feb 16, 1973Oct 1, 1974Litton Business Systems IncType action arrangement
US6681217Oct 25, 1999Jan 20, 2004Jerzy LewakBoolean text search combined with extended regular expression search
Classifications
U.S. Classification400/368, 400/376
International ClassificationB41J25/02, B41J25/00, B41J23/12, B41J23/00
Cooperative ClassificationB41J23/12, B41J25/02
European ClassificationB41J25/02, B41J23/12