Serial printer with rotating interposer and plural hammers

Claim 2

A serial on-the-fly printer, comprising a type-carrying member in continuous motion for bringing into print position in succession the characters of a character set, a print carriage movable along the print line, for occupying in succession all possible positions along a print line, a printing member mounted on said print carriage, said printing member comprising two printing hammers having at least partially superimposed printing heads, an interposer member mounted on said print carriage and having variable portions interposable in succession between said type-carrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said type-carrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last metnioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 3

A serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line, a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage, said printing member comprising two printing hammers having at least partially superimposed printing heads, an interposer member mounted on said print carraige and having variable pOrtions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last metnioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 4

A serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line, a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage, said printing member comprising two printing hammers having at least partially superimposed printing heads, an interposer member mounted on said print carraige and having variable pOrtions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last metnioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 5

The serial printer of claim 2, whereby said typecarrying member comprises a rotating daisy-shaped assembly of flexible tongues, each tongue of said daisy-shaped assembly bearing at its free extremity a character of the said character set.

Claim 6

The serial printer of claim 3, wherein said interposer member comprises a rotatable daisy-shaped assembly formed of flexible blades, having said variable portions at the ends thereof, and said assembly being disposed coaxial to said type-carrying member.

Claim 7

Serial on-the-fly printer compris1ng a typecarrying member in continuous motion for bringing into print position in succession the characters of a character set, a print carriage movable along the print line, for occupying in succession all possible positions along the print line, a printing member mounted on said print carriage, said printing member comprising two printing hammers having partially superimposed printing heads mutually staggered in the direction of the print line, an interposer member mounted on said print carriage and having variable portions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last metnioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 8

Serial on-the-fly printer compris1ng a typecarrying member in continuous motion for bringing into print position in succession the characters of a character set, a print carriage movable along the print line, for occupying in succession all possible positions along the print line, a printing member mounted on said print carriage, said printing member comprising two printing hammers having partially superimposed printing heads mutually staggered in the direction of the print line, an interposer member mounted on said print carriage and having variable portions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last metnioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 9

Serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line, a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage, said printing member comprising two printing hammers having partially superimposed printing heads mutually staggered in the direction of the print line, an interposer member mounted on said print carriage and having variable portions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 10

Serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line, a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage, said printing member comprising two printing hammers having partially superimposed printing heads mutually staggered in the direction of the print line, an interposer member mounted on said print carriage and having variable portions interposable in succession between said typecarrying member and said printing member, means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 11

Serial on-the-fly printer comprising a typecarrying member in continuous motion for bringing into print position in succession every character of a character set; a print carriage movable along the print line, for occupying in succession all possible Positions along the print line; a printing member mounted on said print carriage and comprising a first and a second printing hammer having printing heads superimposed on a first and a second level, said printing heads having a width sufficient to span two print positions; an interposer member, mounted on said print carriage, and having variable portions interposable in succession between said typecarrying member and said printing member, said variable portions being alternatively provided with reliefs in correspondence of said first and of said second level, for cooperating alternatively with the printing heads of said first and said second printing hammers, means for activating said interposer member for imparting to the portion of said interposed member interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 12

Serial on-the-fly printer comprising a typecarrying member in continuous motion for bringing into print position in succession every character of a character set; a print carriage movable along the print line, for occupying in succession all possible Positions along the print line; a printing member mounted on said print carriage and comprising a first and a second printing hammer having printing heads superimposed on a first and a second level, said printing heads having a width sufficient to span two print positions; an interposer member, mounted on said print carriage, and having variable portions interposable in succession between said typecarrying member and said printing member, said variable portions being alternatively provided with reliefs in correspondence of said first and of said second level, for cooperating alternatively with the printing heads of said first and said second printing hammers, means for activating said interposer member for imparting to the portion of said interposed member interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 13

Serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line; a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage and comprising a first and a second printing hammer having printing heads superimposed on a first and a second level, said printing heads having a width sufficient to span two print positions; an interposer member, mounted on said print carriage, and having variable portions interposable in succession between said typecarrying member and said printing member, said variable portions being alternatively provided with reliefs in correspondence of said first and of said second level, for cooperating alternatively with the printing heads of said first and said second printing hammers; means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto, for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 14

Serial on-the-fly printer, comprising a print carriage movable along the print line, for occupying in succession all the possible positions along the print line; a typecarrying member in continuous motion for bringing into print position in succession every character of a character set, mounted on said print carriage; a printing member mounted on said print carriage and comprising a first and a second printing hammer having printing heads superimposed on a first and a second level, said printing heads having a width sufficient to span two print positions; an interposer member, mounted on said print carriage, and having variable portions interposable in succession between said typecarrying member and said printing member, said variable portions being alternatively provided with reliefs in correspondence of said first and of said second level, for cooperating alternatively with the printing heads of said first and said second printing hammers; means for activating said interposer member for imparting to the portion of said interposer member, interposed between the said typecarrying member and said printing member, a motion correlated to the motion of the print carriage and directed in the opposite direction thereto, for maintaining said variable interposed portion in a substantially fixed position in registration with a predetermined print position during the entire interposition interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 15

A serial printer comprising: typecarrying means movable adjacent a plurality of print positions in a print line, carriage means movable along a line parallel to the print line, printing means disposed on said carriage and comprising at least two printing hammers partially superimposed, interposer means comprising a plurality of portions interposable in succession between said typecarrying means and said printing hammers, and means for imparting a motion to said interposer portion disposed between said typecarrying means and said printing hammer which motion is correlated to movement of said carriage which is in the opposite direction, to said carriage movement for maintaining said interposer portion in a substantially fixed position in registration with a predetermined print position during its interposed interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 16

A serial printer comprising: typecarrying means movable adjacent a plurality of print positions in a print line, carriage means movable along a line parallel to the print line, printing means disposed on said carriage and comprising at least two printing hammers partially superimposed, interposer means comprising a plurality of portions interposable in succession between said typecarrying means and said printing hammers, and means for imparting a motion to said interposer portion disposed between said typecarrying means and said printing hammer which motion is correlated to movement of said carriage which is in the opposite direction, to said carriage movement for maintaining said interposer portion in a substantially fixed position in registration with a predetermined print position during its interposed interval, said last mentioned means being effective to subsequently bring successive interposable portions between said type-carrying member and said printing member.

Claim 17

The serial printer of claim 9 wherein said typecarrying means comprises a rotating assembly of flexible tongues, each tongue having disposed at its free extremity a chAracter of a character set.

Claim 18

The serial printer of claim 10 wherein said interposer means comprises a rotatable assembly of flexible blades having said portions disposed at the ends thereof, said assembly being located coaxial with said type-carrying means.

Claim 19

The serial printer of claim 9 wherein said printing heads are superimposed as set forth on a first and a second level each head having a width substantially equal to two print positions, and wherein said interposer portions are provided with reliefs in correspondence with said first and second levels for cooperating alternatively with said two printing heads.