DE203134C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 203134 CLASS 15 #. GROUP

LEON CHAMBONNAUD in PARIS.

to a different type group.

Addendum to patent 200336 of July 17, 1907.

Patented in the German Empire on November 1, 1907. Longest duration: June 16, 1922.

The invention relates to a device for typewriters for producing cleaner Character according to patent 200336. The new thing is that instead of the switch lever an intermediate lever that is moved by this and that effects switching to another type group is coupled with the write keys. This invention is particularly useful in typewriters with multiple printing points Great relief when hitting the typing keys, since not all types are switched have to be, but only the types of the group that the stricken Button listened to.

In the drawing, the new device is shown in two embodiments.

Fig. Ι shows a side view of the first embodiment.

Fig. 2 is a side view and

Fig. 3 is a plan view of the second embodiment.

In Fig. Ι ι is the switch lever and 2 is the lever of the write key. Both levers are rotatably mounted on an axis 3 in the frame of the machine. The changeover lever 1 has at its end a stop 4 which rests against the lower beveled end of an intermediate lever 6 rotatably mounted on the frame of the machine on an axis 5. With the upper end of the lever 6 acts on the lower movable part 7 of the type 35

40

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bearing support 8 a. The part 7 is pulled backwards by a spring 9. In the bearing support parts 7, 8, two link levers 15, 15 ^{1 are} mounted, which at their ends articulately ^{carry a type carrier 15 2} with two types ο, η which slides in a guide 15 ^3.

Each lever 2 of the writing keys has a slot 11 in at its rear end This engages a pin 12 of a rail 13 guided vertically in the frame of the machine a, which at its upper forward end by a pull rod 14 with the Handlebar lever 15 is connected. The rail 13 has a stop i6 against which a on the machine frame on an axis 17 rotatably mounted angle lever 18 by the action a spring 19 is kept pressed.

The storage of the angle lever 18 for Hebei 6 is such that the about the axis 17 of the end of the arm 20 of the bell crank 18 described circle intersects the circle around the axis 5 through one at the top End of the lever 6 seated approach 10 will be described. As a result, that slips End of arm 20 upon rotation of angle lever 18 against stop 10 of lever 6 over as soon as this is in the rest position, but lies against the stop 10, as soon as the lever 6 has made a movement.

Claims (4)

The mode of operation of the new device is as follows: When the write key is struck, the rail 13 is moved upwards. The stop 16 sitting on it rests against one arm of the angle nebula 18, the other arm of which then slides past the stop 10 of the lever 6. If the shift key is hit at the same time as the write key, then the arm 20 of the angle lever 18 rests against the shoulder 10 if it has not yet fully followed its path, thereby completing the movement of the lever 6 and thus also the switching to another Type group, before the posted type hits the paper. In the embodiment according to FIGS. 2 and 3, 21 is the switching lever and 22 is the lever of a write key. Both levers can be rotated with their rear part on an axle 23 mounted in the machine frame. The lever 22 rests on the transverse part 24 of a frame 25 which is rotatably mounted in supports 26. The frame 25 is held in its rest position by a spring 27 and has an arm or stop 28. An angle lever 30, which is used to move the bearing bracket for the type lever, is rotatably mounted in a stand 29 arranged on the machine frame. The angle lever has on its one arm 31 a shoulder 32 on which the switching lever 21 rests. The frame 25 is mounted to the angle lever 30 such that the path described by the front end of the arm 28 intersects the path described by the end of the arm 31 of the angle lever 30, in such a way that in the rest position of the angle lever 30, the rear end of the arm 28 when Depressing the write key slides past the front end of the arm 31 of the bell crank 30; but as soon as the angle lever is moved a little by the switching lever 21, the arm 28 lies on the arm 31 and causes a further rotation of the angle lever 30 into its end position and thus switching to another type group. The stop 28 can be arranged resiliently, whereby the impact of the same on the arm 31 is mitigated and the wear is compensated. Godfather ν τ-An Proverbs: 1. Device for typewriters to produce clean characters at Switching to another type group according to patent 200336, characterized in that a the switching to another type group causing intermediate lever is coupled with the typing keys. 2. Device according to claim 1 with a frame provided with a stop dormant key levers, characterized in that that this stop (28) when a key is pressed on the intermediate lever moved by the switching lever as soon as it is brought out of its rest position. 3. Device according to claim 1, characterized in that one on one connecting the guide lever (15) of the type carrier with the keypad lever (2) Rod (13) arranged stop (16) ' a lever (18) moves when writing, which moves against the switch lever (1) moved intermediate lever (6) as soon as it is brought out of its rest position. 4. Device according to claim 1 to 3, characterized in that one of the for Coupling the intermediate lever with the keypad levers serving approaches is resiliently mounted. 1 sheet of drawings.