Recording instruments

Claim 2

A recording instrument comprising driving means, a continuous web of recording paper which is folded in many folds before and after recording, means driven by said driving means for continuously feeding said recording paper in an unfolded condition, and means for recording a measured quantity on said recording paper while it is unfolded, said recording means comprising a pen arm rotated in accordance with said measured quantity, a pipe assembly, a movable body and a pen mounted on one end of said pen arm, a supporting rod along which said movable body is slidable a cartridge type ink container removably inserted into an opening of said movable body and connected to said pen by a portion of said pipe assembly, an ink pot connected to said ink container through another portion of said pipe assembly, and means for supplementing ink to said ink container from said ink pot through said pipe assembly.

Claim 3

The recording instrument according to claim 1 wheerein there is provided a passage in said ink container, one end of said passage being adapted to be communicated with said pen via said pipe assemBly and the other end of said passage opening in the rear bottom side of said container so that even when said recording instrument is mounted on an inclined panel board facing upwardly said other end of said passage occupies the lowest portion of said ink container.

Claim 4

The recording instrument according to claim 1 wherein said movable body receives said supporting rod in an opening formed near said ink container so as to minimize the moment of inertia caused by the weight of said container applied to said supporting rod when said ink container is mounted on said instrument.

Claim 5

A cassett-type recording instrument for a Z-folded paper stack comprising: a frame, torque generating means and torque transmission means on said frame; a cassette removably mounted on said frame, said cassette having: a housing enclosing a rectangular volume with internal dimensions corresponding to the sheet size of said stack and subdivided by a transverse wall to define first and second internal regions having said internal dimensions to accept and confine the edges of separate stacks of Z-folded paper, recording paper feed means at one end of said housing, said recording paper feed means being cooperatively connected to said torque transmission means when said cassette is mounted on said frame as as to be rotated, a turning guide at the other end of said housing positioned to guide a continuous web of Z-folded recording paper which is stored in said first internal region of said cassette and engaged with said recording paper feed means so as to be drawn from said first region over said turning guide and fed in an unfolded condition over the outer surface of said cassette, deflecting guide means mounted at said one end of said housing and forming an end wall for said second region adjacent said feed means, said end wall forming a slot through which said feed means propells said web through said slot to be projected past said deflecting guide approximately normal to the surface of said transverse wall and refolded within said second region solely by the force of projection through said slot; and means mounted on said frame at a position opposed to said outer surface for recording a measured quantity on the recording paper while it is unfolded.

Claim 6

A cassett-type recording instrument for a Z-folded paper stack comprising: a frame, torque generating means and torque transmission means on said frame; a cassette removably mounted on said frame, said cassette having: a housing enclosing a rectangular volume with internal dimensions corresponding to the sheet size of said stack and subdivided by a transverse wall to define first and second internal regions having said internal dimensions to accept and confine the edges of separate stacks of Z-folded paper, recording paper feed means at one end of said housing, said recording paper feed means being cooperatively connected to said torque transmission means when said cassette is mounted on said frame as as to be rotated, a turning guide at the other end of said housing positioned to guide a continuous web of Z-folded recording paper which is stored in said first internal region of said cassette and engaged with said recording paper feed means so as to be drawn from said first region over said turning guide and fed in an unfolded condition over the outer surface of said cassette, deflecting guide means mounted at said one end of said housing and forming an end wall for said second region adjacent said feed means, said end wall forming a slot through which said feed means propells said web through said slot to be projected past said deflecting guide approximately normal to the surface of said transverse wall and refolded within said second region solely by the force of projection through said slot; and means mounted on said frame at a position opposed to said outer surface for recording a measured quantity on the recording paper while it is unfolded.

Claim 7

A recording instrument of the type comprising torque generating means, torque transmission means, a rectangular container removably mounted on the instrument and supporting at one end a sprocket wheel cooperatively connected to said means for transmitting the torque when said container is mounted on said instrument so as to be rotated, said container adapted to accommodate a continuous web of Z-folded recording paper which is folded before and after recording and engaged with said sprocket wheel so as to be fed in an unfolded condition, said container enclosing a rectangular volume with the internal dimensions corresponding to the sheet size of said Z-folded recording paper and subdivided by a transverse wall to define a first storing compartment adapted to store and confine the edges of a stack of the not yet recorded portion of said recording paper in a folded condition and a second housing compartment adapted to house and confine the edges of a stack of the recorded portion of said recording paper in a refolded condition, said first compartment being at the other end of said container and said second compartment being aligned between said first compartment and said sprocket wheel and separated from said sprocket wheel by a deflection guide, and a guide plate member adapted to define a feed path for the recording paper which is fed by means of said sprocket wheel from said storing compartment along said guide plate member, said deflection guide forming a slot through which said recording paper is projected into said housing compartment approximately normal to said transverse wall, said paper being folded after recording solely by force of projection thru said slot, a portion of said guide plate being on the opposite side of said paper At a recording position in said feed path; and a pen on said instrument operative for recording a measured quantity on said recording paper in said unfolded condition at said recording position.

Claim 8

A recording instrument of the type comprising torque generating means, torque transmission means, a rectangular container removably mounted on the instrument and supporting at one end a sprocket wheel cooperatively connected to said means for transmitting the torque when said container is mounted on said instrument so as to be rotated, said container adapted to accommodate a continuous web of Z-folded recording paper which is folded before and after recording and engaged with said sprocket wheel so as to be fed in an unfolded condition, said container enclosing a rectangular volume with the internal dimensions corresponding to the sheet size of said Z-folded recording paper and subdivided by a transverse wall to define a first storing compartment adapted to store and confine the edges of a stack of the not yet recorded portion of said recording paper in a folded condition and a second housing compartment adapted to house and confine the edges of a stack of the recorded portion of said recording paper in a refolded condition, said first compartment being at the other end of said container and said second compartment being aligned between said first compartment and said sprocket wheel and separated from said sprocket wheel by a deflection guide, and a guide plate member adapted to define a feed path for the recording paper which is fed by means of said sprocket wheel from said storing compartment along said guide plate member, said deflection guide forming a slot through which said recording paper is projected into said housing compartment approximately normal to said transverse wall, said paper being folded after recording solely by force of projection thru said slot, a portion of said guide plate being on the opposite side of said paper At a recording position in said feed path; and a pen on said instrument operative for recording a measured quantity on said recording paper in said unfolded condition at said recording position.

Claim 9

The recording instrument according to claim 5 wherein there are provided a block with an inclined surface secured to said recording paper container and a mounting mechanism having a crank lever with an inclined surface cooperating with said inclined surface of the block such that the inclined surface of said block may be forcibly engaged with the inclined surface of said crank lever to bias said recording paper container towards its predetermined mounted position in said instrument as said container is mounted.

Claim 10

A recording instrument of the type comprising torque generating means, torque transmission means, a sprocket wheel cooperatively connected to said means for transmitting the torque so as to be rotated, a continuous web of recording paper which is folded before and after recording and engaged with said sprocket wheel so as to be fed in an unfolded condition, and a pen for recording a measured quantity on said recording paper in an unfolded condition, characterized in that there is provided a container for accommodating the recording paper which includes a movable partition wall interposed between and defining a storing compartment and a housing compartment containing said paper before and after recording respectively, said movable partition wall being supplied with a resilient force by a spring to be biased toward said storing compartment so as to vary the volumes of said storing and housing compartments in accordance with the decrease and increase in the volume of said recording paper within said storing and housing compartments, respectively,

Claim 11

A recording instrument of the type comprising torque generating means, torque transmission means, a sprocket wheel cooperatively connected to said means for transmitting the torque so as to be rotated, a continuous web of recording paper which is folded before and after recording and engaged with said sprocket wheel so as to be fed in an unfolded condition, and a pen for recording a measured quantity on said recording paper in an unfolded condition, characterized in that there is provided a container for accommodating the recording paper which includes a movable partition wall interposed between and defining a storing compartment and a housing compartment containing said paper before and after recording respectively, said movable partition wall being supplied with a resilient force by a spring to be biased toward said storing compartment so as to vary the volumes of said storing and housing compartments in accordance with the decrease and increase in the volume of said recording paper within said storing and housing compartments, respectively,

Claim 12

The recording instrument according to claim 7 wherein said means for transmitting the torque includes a gear mechanism for changing the speed of said means for generating torque and a transmission shaft having one end connected to the output of said gear mechanism and the other end removably connected to said recording paper container and adapted to rotate said sprocket wheel within said container, whereby the speed of said means for generating torque changed by said gear mechanism is transmitted through said transmission shaft to drive the sprocket wheel in said recording paper container.

Claim 13

The recording instrument according to claim 8 wherein said gear mechanism comprises first and second gear mechanism units, said first gear mechanism unit being removable, the combination of said first and second gear mechanism cooperating with torque generating means of one type to produce the same output speed as said second gear mechanism produces when cooperating with torque generating means of another type with said first gear mechanism removed.