Power driven typewriter

A typewriter comprising:

• power means including a cyclic clutch;
• a clutch control member,
• means for moving said clutch control member to clutch engaging position,
• a carriage,
• a type member supported by said carriage,
• means operable by said clutch upon engagement thereof for shifting said carriage,
• a rockable shaft extending parallel to the direction of movement of said carriage,
• latch means operatively connected to said shaft and adapted to latch said clutch control member in clutch engaging position,
• a tab stop control member settable in any of different positions along said shaft, and
• means on said carriage engageable with said tab stop control member and effective to rock said shaft whereby to cause said latch means to release said clutch control member.

A typewriter comprising:

• a type member,
• a depressible key,
• power means including a cyclically operable clutch for causing printing by said type member,
• an interponent, a pivotal connection between said interponent and said key, said interponent having a primary surface and a secondary surface thereon, said primary surface being located at a greater distance from said pivotal connection than said secondary surface,
• a control member engageable by said primary surface upon depression of said key to a predetermined position for causing engagement of said clutch, and
• means operable by said clutch during the cycle thereof for releasing said primary surface from control member,
• said releasing means being effective to swing said interponent sufficiently about said pivotal connection to release said primary surface from said control member and to enable said secondary surface to engage said control member upon depression of said key beyond a predetermined position.

A typewriter comprising:

• a shaft,
• a carriage movable along the length of said shaft,
• a type drum having a plurality of rows of type characters thereon,
• means on said carriage supporting said drum for rotation and axial movement,
• an actuating device slideably keyed on said shaft and movable with said carriage, said actuating device being operatively connected to said drum,
• a plurality of keys,
• means controlled by different ones of said keys upon depression thereof for rocking said shaft different amounts whereby to align different ones of said rows with a printing point,
• a second shaft parallel to said first shaft,
• a gear slideably keyed on said second shaft and movable with said carriage,
• a second gear meshing with said first gear and operatively connected with said type drum,
• means controlled by different ones of said keys upon depression thereof for rocking said second shaft different amounts whereby to position different ones of said type characters at said printing point,
• a third shaft parallel to said first two mentioned shafts,
• a centralizer member slideably keyed on said third shaft and movable with said carriage, said centralizer member being effective to centralize said drum in an axial direction and in a direction about said axis of rotation thereof, and
• means controlled by any of said keys upon depression thereof for rocking said third shaft whereby to cause said centralizer member to centralize said drum.

A typewriter comprising:

• a type member having a plurality of type characters thereon,
• a device operatively connected to said type member and movable to different positions to cause said type member to present different ones of said type characters to a printing position,
• a plurality of actuators advanceable through predetermined strokes to actuate said device to different ones of said positions,
• a plurality of depressible keys,
• means operable by each of said keys upon depression thereof to partially advance a respective one of said actuators through its said stroke, and
• a power oscillated member responsive to said depression of each of said keys for fully advancing a respective partially advanced one only of said actuators through the remainder of its said stroke.

A typewriter comprising:

• a type member having a plurality of type characters thereon,
• a device operatively connected to said type member and movable to different positions to cause said type member to present different ones of said type characters to a printing position,
• a plurality of actuators advanceable through predetermined strokes to move said device to different ones of said positions,
• said device comprising a plurality of cam elements each engageable by a respective one of said actuators during advancement of a said actuator through its said stroke and movable from any of said positions to a position represented by said actuator,
• a plurality of depressible keys,
• a drive member movable through an actuating path and adapted to drive a said actuator positioned in said path through said predetermined stroke thereof,
• means responsive to depression of each of said keys to position its respective said actuator in said actuating path, and
• power means responsive to depression of any of said keys to cause said drive member to move through said actuating path.

A typewriter comprising a type member having a plurality of type characters thereon,

• a device operably connected to said type member and movable to different positions to cause said type member to present different ones of said type characters to a printing position,
• said device having a plurality of cam elements thereon,
• a plurality of actuators movable through actuating strokes and each effective to engage respective ones of said cam elements whereby to move said device to different ones of said positions,
• a plurality of depressible keys, and
• power means controlled by each of said keys upon depression thereof for causing a respective one of said actuators to move through its actuating stroke,
• each of said actuators being engageable with one or the other of said cam surfaces of a respective one of said cam elements whereby to move said device from any position thereof to a position representing a said depressed key.