Graphic recording system
OwnerF. Peter Della Monicainventor
Life of this patent
Estimating the term…
Abstract
A graphic recorder for facilitating the preparation of records of functions of time, comprising a base on which a scale is mounted for movement along one coordinate axis relative to a markable scale on which a series of increments in a function of time to be recorded can be inscribed, a cursor is mounted on the scale for movement along a second coordinate axis relative to a preinscribed scale on which increments of time have been recorded, and a chart affixed to the base that is recorded with the scales and provided with indicia locating appropriate regions for marking significant domains in a field defined by indicial sequences inscribed in the scales on the chart aligned with the coordinate axes.
Claims5
A recording device for enabling a user unskilled in the mathematical arts to prepare a graph of a function of time, comprising a base, means forming a first elongated slot in said base extending along a first coordinate axis, a slide having a second slot, means formed on one end of said slide and engaging said first slot for cantilever mounting of said slide for movement on said base aong said first coordinate axis a scale on said slide, said scale extending normal to said first axis, a cursor, means slidably mounting said cursor on said slide for movement therealong in directions normal to said first axis, a record sheet mounted on said base and formed with indicia comprising a blank scale and a preinscribed scale running along orthogonal axes one of which is parallel with said first axis, said preinscribed scale being formed with perceptible indicia in uniform increments of an independent variable, said blank scale being formed with perceptible indicia indicating regions adapted to be marked with a scale of values of a dependent variable, means forming perceptible coordinate indicia denoting regions on said record sheet at each intersection along a line parallel with one of said orthogonal axes through a value on said preinscribed scale with a line parallel to the other of said orthogonal axes through a region on said blank scale, means forming a first aperture in said cursor adapted to admit a marking implement through said second slot into marking engagement with said record sheet, means forming at least a second aperture in said cursor in a line with said first aperture in said cursor that is parallel to said first axis, means forming perceptible indicia on said slide in rows normal to said first axis and parallel to a first of said orthogonal scales on said record sheet to facilitate alignment of said cursor with said first scale, and means forming another aperture serving as a window in said cursor adapted to be aligned with a desired location on the other of said orthogonal scales in one extreme position of said cursor on said slide.
A recording device for enabling a user unskilled in the mathematical arts to prepare a graph of a function of time, comprising a base, a slide, means mounting said slide for movement on said base along a first coordinate axis, said slide extending normal to said first axis, a cursor, means slidably mounting said cursor on said slide for movement therealong in directions normal to said first axis, a record sheet mounted on said base and formed with indicia comprising a blank scale and a preinscribed scale running along orthogonal axes one of which is parallel with said first axis, said preinscribed scale being formed with perceptible indicia in uniform increments of an independent variable, said blank scale being formed with perceptible indica indicating regions adapted to be marked with a scale of values of a dependent variable, means forming perceptible coordinate indicia denoting regions on said record sheet at each intersection along a line parallel with one of said orthogonal axes through a value on said preinscribed scale with a line parallel to the other of said orthogonal axes through a region on said blank scale, means forming an elongated slot in said slide through which a marking implement can be inserted into marking engagement with said record sheet, said slot running normal to said first axis in position to expose a different row of said coordinate indicia in each of a set of different positions of said slide relative to said base, means forming a first aperture in said cursor adapted to register with said slot and admit a marking implement through said slot into marking engagement with said record sheet, means forming perceptible indicia on said slide in rows normal to said first axis and parallel to a first of said orthogonal scales on said record sheet to facilitate alignment of said cursor with said first scale, and means forming a second aperture serving as a window in said cursor adapted to be aligned with a desired location on the other of said orthogonal scales in one extreme position of said cursor on said slide.
A recording device for enabling a user unskilled in the mathematical arts to prepare a graph of a function of time, comprising a base, a slide, means mounting and slide for movement on said base along a first coordinate axis, said slide extending normal to said first axis, a cursor, means slidably mounting said cursor on said slide for movement therealong in directions normal to said first axis, a record sheet mounted on said base and formed with indicia comprising a blank scale and a preinscribed scale running along orthogonal axes one of which is parallel with said first axis, said preinscribed scale being formed with perceptible indicia in uniform increments of an independent variable, said blank scale being formed with perceptible indicia indicating regions adapted to be marked with a scale of values of a dependent variable, means forming perceptible coordinate indicia denoting regions on said record sheet at each intersection along a line parallel with one of said orthogonal axes through a value on said preinscribed scale with a line parallel to the other of said orthogonal axes through a region on said blank scale, means forming an elongated slot in said slide through which a marking implement can be inserted into marking engagement with said record sheet, said slot running normal to said first axis in position to expose a different row of said coordinate indicia in each of a set of different positions of said slide relative to said base, means forming a first aperture in said cursor adapted to register with said slot and admit a marking implement through said slot into marking engagement with said record sheet, means forming a second aperture in said cursor in a line with said first aperture in said cursor that is parallel to said first axis, means forming perceptible indicia on said slide in a row normal to said first axis and parallel to a first of said orthogonal scales on said record sheet to facilitate alignment of said cursor with said first scale, and means forming another aperture serving as a window in said cursor adapted to be aligned with a desired location on the other of said orthogonal scales in one extreme position of said cursor on said slide.
A recording device for enabling a user unskilled in the mathematical arts to prepare a graph of a function of time, comprising a base, a slide, means mounting said slide for movement on said base along a first coordinate axis, said slide extending normal to said first axis, a cursor, means slidably mounting said cursor on said slide for movement therealong in directions normal to said first axis, a record sheet mounted on said base and formed with indicia comprising a blank scale and a preinscribed scale running along orthogonal axes one of which is parallel with said first axis, said preinscribed scale being formed with perceptible indicia in uniform increments of an independent variable, said blank scale being formed with perceptible indicia indicating regions adapted to be marked with a scale of values of a dependent variable, one said region being associated with perceptible indicia indicating a starting region in which a first value of said dependent variable is to be inscribed corresponding with a first value of the independent variable on said preinscribed scale, means forming perceptible coordinate indicia denoting regions on said record sheet at each intersection along a line parallel with one of said orthogonal axes through a value on said preinscribed scale with a line parallel to the other of said orthogonal axes through a region on said blank scale, means forming an elongated slot in said slide through which a marking implement can be inserted into marking engagement with said record sheet, said slot running normal to said first axis in position to expose a different row of said coordinate indicia in each of a set of different positions of said slide relative to said base, means forming a first aperture in said cursor adapted to register with said slot and admit a marking implement through said slot into marking engagement with said record sheet, means forming second and third apertures in said cursor in a line with said first aperture in said cursor that is parallel to said first axis, means forming perceptible indicia on said slide in rows normal to said first axis and parallel to a first of said orthogonal scales on said record sheet to facilitate alignment of said cursor with said first scale, and means forming another aperture serving as a window in said cursor adapted to be aligned with a desired location on the other of said orthogonal scales in one extreme position of said cursor on said slide.
A recording device for enabling a user unskilled in the mathematical arts to prepare a graph of a function of time, comprising a base, means forming a dovetail slot in said base extending along a first coordinate axis, a slide, means forming a tongue on said slide at one end thereof received in said slot for cantilever mounting of said slide for movement on said base along said first coordinate axis, said slide extending normal to said first axis, a cursor, means slidably mounting said cursor on said slide for movement therealong in directions normal to said first axis, a record sheet mounted on said base and formed with indicia comprising a blank scale and a preinscribed scale running along orthogonal axes one of which is parallel with said first axis, said preinscribed scale being formed with perceptible indicia in uniform increments of an independent variable, said blank scale being formed with perceptible indicia indicating regions adapted to be marked with a scale of values of a dependent variable, one said region being associated with perceptible indicia indicating a starting region in which a first value of said dependent variable is to be inscribed corresponding with a first value of the independent variable on said preinscribed scale, means forming perceptible coordinate indicia denoting regions on said record sheet at each intersection along a line parallel with one of said orthogonal axes through a value on said preinscribed scale with a line parallel to the other of said orthogonal axes through a region on said blank scale, means forming an elongated slot in said slide through which a marking implement can be inserted into marking engagement with said record sheet, said slot of said slide running normal to said first axis in position to expose a different row of said coordinate indicia in each of a set of different positions of said slide relative to said base, means forming a first aperture in said cursor adapted to register with said slot of said slide and admit a marking implement through said slot of said slide into marking engagement with said record sheet, means forming second and third apertures in said cursor in a line with said first aperture in said cursor that is parallel to said first axis, means forming perceptible indicia on said slide in rows normal to said first axis and parallel to a first of said orthogonal scales on said record sheet to facilitate alignment of said cursor with said first scale, and means forming another aperture serving as a window in said cursor adapted to be aligned with a desired location on the other of said orthogonal scales in one extreme position of said cursor on said slide.
Dependencies are inferred from the claim text.