Carbon ribbon transporting and installation facilities

Claim 2

In a typewriter, the combination comprising: a ribbon vibrator for carrying a ribbon and being movable from a lowered rest position to an elevated position to facilitate the threading of a ribbon thereon, ribbon transport means for advancing the ribbon through said ribbon vibrator, said ribbon transport means including a pair of rollers for receiving the ribbon therebetween, said ribbon transport means further including mounting means normally supporting said rollers in cooperating relation with each other to draw the ribbon through the ribbon vibrator and being movable to separate said rollers to facilitate the threading of the ribbon therebetween, a ribbon control member supported for movement from a rest position to an operated position, and moving means connected in controlling relation with said ribbon vibrator and said mounting means and being operable in response to the movement of said ribbon control member from the rest position to the operated position for moving said ribbon vibrator from the lowered rest position to the elevated position and for moving said mounting means to separate said feed rollers.

Claim 3

In a typewriter according to claim 1, the combination further comprising: drive means for cyclically driving at least one of said rollers in intermittent steps to advance the ribbon through said ribbon vibrator, a drive control member supported for movement from a rest position to an operated position, actuating means operable in response to the movement of said drive control member from the rest position to the operated position for actuating said drive means to intermittently advance the ribbon through said ribbon vibrator, and stop means associated with said ribbon control member and operable in response to the movement of said ribbon control member from the rest position to the operated position for stopping movement of said drive control member from the rest position to prevent the actuation of said drive means.

Claim 4

In a typewriter according to claim 2, the combination further comprising blocking means associated with said drive control member and operable in response to the movement of said drive control member from the rest position to the operated position for blocking movement of said ribbon control member from the rest position to prevent the operation of said moving means.

Claim 5

In a typewriter according to claim 3, said drive control member being movably supported on said ribbon control member.

Claim 6

In a typewriter according to claim 4: said ribbon control member being in the form of a lever pivotably supported for movement between a rest position and an operated position, and said drive control member being movably supported on said lever for operation thereon.

Claim 7

In a typewriter according to claim 1: said actuating means including a bell crank pivotally supported in spaced relation to said ribbon control member and pivoted by the movement of said drive control member from the rest position to the operated position, interlocking means comprising a nose movable with said bell crank and a stop element movable with said ribbon control member, said nose being movable into blocking relation with said stop element upon movement of said drive control member to the operated position to prevent the movement of said ribbon control member from the rest positioN, and said stop element being movable into blocking relation with said nose upon movement of said ribbon control member to the operated position to prevent pivoted movement of said bell crank and prevent movement of said drive control member from the rest position.

Claim 8

In a typewriter according to claim 6: said ribbon control member being a pivotally supported lever, and said drive control member being a plunger carried on said lever and being axially movable to operate said pivotally supported bell crank.

Claim 9

In a typewriter, the combination comprising: a ribbon vibrator for carrying a ribbon thereon, ribbon transport means for advancing the ribbon through the ribbon vibrator, said ribbon transport means including a pair of rollers located forwardly of said ribbon vibrator for receiving the ribbon therebetween, said ribbon transport means further including mounting means normally supporting said rollers in cooperating relation with each other for drawing the ribbon through said ribbon vibrator and being movable to separate said rollers to facilitate the threading of the ribbon therebetween, ribbon guide means defining a ribbon guide portion located rearwardly from said pair of feed rollers for receiving the ribbon therefrom and redirecting the ribbon toward a take-up spool, said ribbon guide means being movably supported for forward movement of the ribbon guide portion toward alignment with said ribbon vibrator and said pair of guide rollers upon separation thereof, a ribbon control member supported for movement from a rest position to an operated position, and moving means connected in controlling relation with said mounting means and said ribbon guide means and being operable in response to the movement of said ribbon control member from the rest position to the operated position for moving said mounting means to separate said feed rollers and for moving said ribbon guide portion into alignment with said separated feed rollers and said ribbon vibrator to facilitate the threading of the ribbon into a straight line condition from said ribbon vibrator through said separated feed rollers to said ribbon guide portion.

Claim 10

In a typewriter, the combination comprising: a ribbon vibrator for carrying a ribbon thereon, ribbon transport means for advancing the ribbon through the ribbon vibrator, said ribbon transport means including a pair of rollers located forwardly of said ribbon vibrator for receiving the ribbon therebetween, said ribbon transport means further including mounting means normally supporting said rollers in cooperating relation with each other for drawing the ribbon through said ribbon vibrator and being movable to separate said rollers to facilitate the threading of the ribbon therebetween, ribbon guide means defining a ribbon guide portion located rearwardly from said pair of feed rollers for receiving the ribbon therefrom and redirecting the ribbon toward a take-up spool, said ribbon guide means being movably supported for forward movement of the ribbon guide portion toward alignment with said ribbon vibrator and said pair of guide rollers upon separation thereof, a ribbon control member supported for movement from a rest position to an operated position, and moving means connected in controlling relation with said mounting means and said ribbon guide means and being operable in response to the movement of said ribbon control member from the rest position to the operated position for moving said mounting means to separate said feed rollers and for moving said ribbon guide portion into alignment with said separated feed rollers and said ribbon vibrator to facilitate the threading of the ribbon into a straight line condition from said ribbon vibrator through said separated feed rollers to said ribbon guide portion.

Claim 11

In a typewriter according to claim 8: said ribbon vibrator being movable from a lowered rest position to an elevated position to facilitate the threading of a ribbon thereon, and said moving means being further connected in controlling relation with said ribbon vibrator and operable in response to the movement of said ribbon control member from the rest position to the operated position for moving said ribbon vibrator to the elevated position.

Claim 12

In a typewriter according to claim 8: said mounting means including a bracket rotatably supporting one of said rollers and another member rotatably supporting said other roller and being pivotably supported on said bracket for separating said roller thereon from said roller supported by said bracket, said ribbon guide means including a lever pivotally supported on said bracket and carrying said ribbon guide portion for movement of said ribbon guide portion relative to the location of said rollers, and said moving means operably connecting said lever of said ribbon guide means with said member supporting said roller for movement of said ribbon guide portion relative to said rollers upon movement of said roller supporting member to separate said pair of rollers from each other.