Letter placement indicator for typewriters and means responsive to the indicator for simultaneous setting of margin stops

Claim 2

A typewriter comprising a carriage, an elongated rotor mounted within said carriage in a normal first position, means to rotate said rotor between said first position and a second position, first and second margin stops mounted on said rotor for movement in an axial direction of said rotor when said rotor is in said second position and for locking relative to said rotor when said rotor is in said first position, a letter placement indicator comprising scale means, a movable pointer manually movable to a plurality of positions, indicia on said scale means associated with at least some of said plurality of positions, said indicia providing a visual indication of (a) the number of spaces between the top of a page and a predetermined line to be typed on said page, (b) the number of spaces to be provided between adjacent lines in the body of a letter to be typed on said page, and (c) the number of words in the body of a letter to be typed on said page, first and second margin stop engaging members engaging respectively said first and second margin stops and preventing said first and second margin stops from rotation relative to said rotor, said pointer being mounted directly on one of said margin stop engaging members, first and second racks attached one to each of said first and second stop engaging members and extending parallel to each other, said racks extending Parallel to said elongated rotor at a fixed distance therefrom when said first and second margin stop engaging members are in engagement with said first and second margin stops, and a pinion intermeshing with said racks and mounted on said carriage, whereby movement of said pointer to any of said plurality of positions when said rotor is in said second position and said first and second margin stop engaging members are in engagement with said first and second margin stops causes movement of said first and second margin stops towards or away from each other.

Claim 3

A typewriter comprising a carriage, an elongated rotor mounted within said carriage in a normal first position, means to rotate said rotor between said first position and a second position, first and second margin stops mounted on said rotor for movement in an axial direction of said rotor when said rotor is in said second position and for locking relative to said rotor when said rotor is in said first position, a letter placement indicator comprising a scale means, a movable pointer manually movable to a plurality of positions, indicia on said scale means associated with at least some of said plurality of positions, said indicia providing a visual indication of (a) the number of spaces between the top of a page and a predetermined line to be typed on said page, (b) the number of spaces to be provided between adjacent lines in the body of a letter to be typed on said page, and (c) the number of words in the body of a letter to be typed on said page, and means connecting said pointer to said first and second margin stops, said connecting means including first and second margin stop engaging members, engaging respectively said first and second margin stops, said pointer being connected to one of said margin stop engaging members, first and second racks attached one each to said first and second margin stop engaging members and extending parallel to each other and to said elongated rotor, and a pinion intermeshing with said racks and mounted on said carriage, whereby movement of said pointer to any of said plurality of positions when said rotor is in said second position causes simultaneous movement of said first and second margin stops towards or away from each other, said margin stop engaging members being in the form of shallow trays having walls which engage the margin stops.

Claim 4

A typewriter comprising a carriage, an elongated rotor mounted within said carriage in a normal first position, means to rotate said rotor between said first position and a second position, first and second margin stops mounted on said rotor for movement in an axial direction of said rotor when said rotor is in said second position and for locking relative to said rotor when said rotor is in said first position, a letter placement indicator comprising a scale means, a movable pointer manually movable to a plurality of positions, indicia on said scale means associated with at least some of said plurality of positions, said indicia providing a visual indication of (a) the number of spaces between the top of a page and a predetermined line to be typed on said page, (b) the number of spaces to be provided between adjacent lines in the body of a letter to be typed on said page, and (c) the number of words in the body of a letter to be typed on said page, and means connecting said pointer to said first and second margin stops, said connecting means including first and second margin stop engaging members, engaging respectively said first and second margin stops, said pointer being connected to one of said margin stop engaging members, first and second racks attached one each to said first and second margin stop engaging members and extending parallel to each other and to said elongated rotor, and a pinion intermeshing with said racks and mounted on said carriage, whereby movement of said pointer to any of said plurality of positions when said rotor is in said second position causes simultaneous movement of said first and second margin stops towards or away from each other, said margin stop engaging members being in the form of shallow trays having walls which engage the margin stops.

Claim 5

The typewriter of claim 2 including a stationary margin release engageable by said first and second margin stops, said first margin stop corresponding to the right hand end of a line to be typed, electrical circuit means connected between said first margin stop and said margin release and comprising lamp means, circuit energizing means and circuit closing means to close said circuit means at a predetermined relative position of said first margin stop and said margin release, thereby to cause said lamp means to glow at or near the end of the typing line.

Claim 6

The typewriter of claim 2 including a stationary typeguide, and a plurality of indicator means comprising colored triangles located at predetermined spaced-apart locations on said carriage and individually visible in said typeguide, said indicator means corresponding to predetermined letter tabulator settings.

Claim 7

The typewriter of claim 2 including a cover for said carriage and an indicator line on said carriage cover corresponding to the positioning of an envelope for address typing using the same tabulator settings as for a letter.

Claim 8

The typewriter of claim 3 wherein said predetermined relative position of said first margin stop and said margin release is at or near the point of engagement of said first margin stop and said margin release, whereby said lamp means is caused to glow at or near the end of the typing line.

Claim 9

A typewriter comprising a carriage, an elongated rotor mounted within said carriage in a normal first position, means to rotate said rotor between said first position and a second position, first and second margin stops mounted on said rotor for movemenT in an axial direction of said rotor when said rotor is in said second position and for locking relative to said rotor when said rotor is in said first position, a letter placement indicator comprising scale means, a movable pointer manually movable to a plurality of positions, indicia on said scale means associated with at least some of said plurality of positions, said indicia providing a visual indication of (a) the number of spaces between the top of a page and a predetermined line to be typed on said page, (b) the number of spaces to be provided between adjacent lines in the body of a letter to be typed on said page, and (c) the number of words in the body of a letter to be typed on said page, means connecting said pointer to said first and second margin stops, said connecting means including first and second margin stop engaging members, engaging respectively said first and second margin stops, said pointer being connected to one of said margin stop engaging members, first and second racks attached one each to said first and second margin stop engaging members and extending parallel to each other and to said elongated rotor, and a pinion intermeshing with said racks and mounted on said carriage, whereby movement of said pointer to any of said plurality of positions when said rotor is in said second position causes simultaneous movement of said first and second margin stops towards or away from each other, a stationary margin release engageable by said first and second margin stops, said first margin stop corresponding to the right hand end of a line to be typed, electrical circuit means connected between said first margin stop and said margin release and comprising lamp means, circuit energizing means and circuit closing means to close said circuit means at a predetermined relative position of said first margin stop and said margin release, thereby to cause said lamp means to glow at or near the end of a typing line, said circuit closing means comprising a terminal fixedly mounted adjacent said margin release and a probe on said first margin stop engageable with said terminal.

Claim 10

A typewriter comprising a carriage, an elongated rotor mounted within said carriage in a normal first position, means to rotate said rotor between said first position and a second position, first and second margin stops mounted on said rotor for movemenT in an axial direction of said rotor when said rotor is in said second position and for locking relative to said rotor when said rotor is in said first position, a letter placement indicator comprising scale means, a movable pointer manually movable to a plurality of positions, indicia on said scale means associated with at least some of said plurality of positions, said indicia providing a visual indication of (a) the number of spaces between the top of a page and a predetermined line to be typed on said page, (b) the number of spaces to be provided between adjacent lines in the body of a letter to be typed on said page, and (c) the number of words in the body of a letter to be typed on said page, means connecting said pointer to said first and second margin stops, said connecting means including first and second margin stop engaging members, engaging respectively said first and second margin stops, said pointer being connected to one of said margin stop engaging members, first and second racks attached one each to said first and second margin stop engaging members and extending parallel to each other and to said elongated rotor, and a pinion intermeshing with said racks and mounted on said carriage, whereby movement of said pointer to any of said plurality of positions when said rotor is in said second position causes simultaneous movement of said first and second margin stops towards or away from each other, a stationary margin release engageable by said first and second margin stops, said first margin stop corresponding to the right hand end of a line to be typed, electrical circuit means connected between said first margin stop and said margin release and comprising lamp means, circuit energizing means and circuit closing means to close said circuit means at a predetermined relative position of said first margin stop and said margin release, thereby to cause said lamp means to glow at or near the end of a typing line, said circuit closing means comprising a terminal fixedly mounted adjacent said margin release and a probe on said first margin stop engageable with said terminal.

Claim 11

The typewriter of claim 4 including lamp means illuminating said typeguide, whereby said indicator means may be readily observed during tabulator settings.