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Match Document Document Title
5126754 Ink jet printing density controller with programmable angle of travel look-up tables for a plotter  
This invention maintains a selected printed ink drop density in an image recording device such as an X-Y plotter having a cartridge of the type which emits discrete ink droplets onto a recording...
5121140 Writing pressure-changing device for recording device or the like  
A writing-pressure changing device for use in a recording device or the like in which when one end of a pen holder is caused to ascend by a device such as a plunger. In this device the pen holder...
4996651 Cutting instrument improvement for X-Y plotter  
A cutting instrument improvement for a computer controlled X-Y plotter comprising an electric motor having a housing and a rotor mounted for rotation about an axis fixed with respect to the...
4920422 Processes and automatic devices for high-resolution writing on a support by projecting drops of colored liquids  
This invention relates to a device for automatically writing a polychrome graphic on a fixed support, comprising a tool-holder which bears a plurality of nozzles perpendicular to the support, each...
4905015 Apparatus and method for generating a variable line width  
The invention is a method and a plotter for automated drawing and writing that provides a drawn line of variable width, where the width is independent of the motion of the plotter pen or the shape...
4903046 Pen position regulator  
A pen exchange mechanism is disclosed, by which a plurality of pen chuck mechanisms holding pens on a carriage are disposed, and a slider is engaged with the carriage at a position corresponding...
4849771 Plotter pen presence and type identification system  
An improvement to graphics pen plotters including a pen gripping mechanism for gripping a cylindrical bodied pen in a generally vertical orientation for sensing the presence and type of a pen in...
4833490 Writing element with exchange mechanism  
In a device for exhanging objects, in particular writing instruments, between two holders (4, 5) open on one side, in which the object (6) is retained at least in one holder (4) by the cooperation...
4827293 Symmetrical braking system for a graphic recorder  
A symmetrical braking system for a graphic recorder includes a generally cylindrical brake support supported by a carriage drive and having a combination of cam surfaces. A brake rotor is...
4779348 Data plotter  
A data plotter includes a table for supporting a record sheet, a carriage movable thereon along one orthogonal axis, and a recording device carried by the carriage and movable with respect thereto...
4779104 Pen plotter pen type identification system  
A pen type sensor for use in a graphics pen plotter wherein plotter pens are moved along a pre-established path between a pen holding area and a plotting area for reading a plurality of vertically...
4764880 Compound plotting apparatus and related method of operation  
A compound plotting apparatus for rapidly producing an annotated design comprises a symbol printing device such as a matrix printer for printing an annotation directly on a worksheet or on a label...
4754288 Pen carousel, pen sensing and indexing  
In a multi-position graphics plotter pen carousel system employing a pen capping mechanism therein at each pen position for capping and uncapping pens held by the carousel, an improvement for...
4683476 Drawing machine having automatically replaced writing members and apparatus therefor  
The body of a writing member is movable in translation between a rest position and a work position, at least partly under the action of a magnetic force, and is permanently held against at least...
4674191 Method and apparatus for producing registered multiple overlay architectural drawings in a computer aided drafting system  
Pre-punched drafting sheets are placed in a pin registration bar and pin holes are marked or punched in the lower corners of the sheets at locations with fixed reference to the registration holes....
4628326 Apparatus for preventing drying-up of drawing needle pens  
A plotter for causing a pen carriage to pick up a drawing needle pen from a pen socket so as to perform drawing, comprises: a support plate located immediately under the pen socket and biased...
4567565 Apparatus and method for pen-lift system  
A pen-lift system is provided which can achieve high speed plotting while maintaining line definition of drafting quality. The system includes a pen-lift mechanism for raising and lowering the...
4536770 Reverse side marking plotter/printer pad  
Improved plotting and printing apparatus has a writing surface for supporting a printing medium and which has an opening for exposing the underside of the medium. A transparent plate is mounted to...
4511905 Stylus recorder linearized drive system  
In the calligraphic printing apparatus disclosed herein, a writing stylus is carried by a flexing suspension including a pair of generally orthogonal arms, each arm being driven by a respective...
4500890 Graphic recording system  
A graphic recording system wherein multiple recording elements are moved relative to a recording medium. The recording elements are selectively actuated for recording on the medium. A carriage...
4489333 Device for exchanging objects in particular writing instruments  
In a device for exchanging objects, in particular writing instruments, two substantially identically embodied holders (5, 5') which are open at one side are provided. These holders are movable...
4455751 Automatic drafting device  
An automatic drafting device has a carriage with toothed wheels in meshed engagement with toothed racks extending across a planar support surface. A pressure regulation device is mounted on the...
4417258 Bi-directional pen changer  
A bi-directional pen changer for use in an X-Y plotter is disclosed which requires only a single axis of motion for pen snatch, pen re-insertion, and plotting. The device is made up of two pen...
4400704 Plotter having continuously moving carbon paper handling system  
A plotting system (10) including a plotting device (40) for plotting on paper (52) is provided. The plotting system (10) includes a work surface (28). A supply source (50) of paper (52) to be...
4398202 Writing devices for plotting and recording apparatus  
A recording or plotting apparatus has a writing device which comprises a pen holder carrying a plurality of pens. A penholder assembly is movable from end to end of a gantry which is itself...
4346445 Portable alphanumeric and symbol drafting device  
A portable alphanumeric and symbol drafting device which essentially comprises a mechanically functioning keyboard unit, which is flexibly connected to an electronics package unit. Accordingly,...
4254552 Inscribing system  
An inscribing system that is electronically automated for transcribing onto miniature carriers character information which will positively identify the human, animal or valuable article in which...
4197550 Apparatus for an automatic marking of drawings  
The apparatus is used for the automatic marking of drawings with alphanumeric and other drawing symbols. A carriage is designed to travel over the drawing without damaging the drawings. Means are...
4186404 Tracing table  
This tracing table of the type having two tracing arms, namely an upper arm and a lower arm, has the upper arm mounted in a plane located above that of the lower arm, in relation to the tracing...
4151536 Device for inscribing graphic and alphanumerical symbols on a recording medium  
A writing head overlying a recording medium, in the form of a sheet with edges respectively extending in mutually orthogonal directions X and Y, carries a linear array of equispaced electrodes...
4135245 Plotter with automatic pen-changer  
An X-Y plotter is provided having an automatic pen changer comprising a pen repository, a memory for storing data identifying a pen selected by a user, a plot head for automatically fetching pens...
4104648 Electric spark recording  
A graphic recording technique is disclosed for the enlargement of a relief configuration. A micro-stylus is used to scan the configuration laterally while measuring vertical irregularities in the...
4089262 Apparatus for printing data on structural components  
This disclosure relates to a machine for applying characters to a structural component, such as an automotive chassis, engine block, or the like, and includes first and second means for moving...
4062648 Plotter with adaptive velocity means for improving plotted line quality  
A plotter system is provided having an adaptive velocity means for improving plotted line quality by selectively varying the velocity of the plot head to produce smooth, substantially continuous...
4051483 System for measuring and recording three dimensional configuration of object  
An encoder for converting a distance to an electric signal is connected with a computer to put a distance signal into the computer. Th encoder is put on a moire pattern obtained by interference...
3968498 X-Y plotter incorporating non-impact, liquid jet recording instrument  
An X-Y plotter which effects non-impact recording by the application of a jet of liquid marking medium to a recording medium while the amount of liquid marking medium to be jetted towards the...
3900853 Stylus actuator  
A stylus actuating mechanism for graphical recorders lowers and raises the recording stylus to recording and non-recording alternative positions in response to electrical signals applied to a...
3792260 PHOTO-ELECTRIC PROTECTION SYSTEM FOR PLOTTER  
Mirrors mounted on the moving component of a machine direct the light beam of a photo-electric system for purposes of safety or control. The photo-electric components can then be mounted to...
3776113 OPTICAL ARRANGEMENT FOR GRAPHICAL PLOTTERS  
A collimated light source may be mechanically deflected in a cartesian reference frame to record graphical data on photosensitive media. Conventional or special high speed electromechanical...
3771035 PLURAL LINEAL MOVEMENT SYSTEM AND PROCESS  
A pair of electrical coils, which are disposed in a magnetic flux field, are constrained for movement in intersecting paths in a plane. A mechanical coupling assembly has a first part connected to...
3763479 COMPUTER INPUT/OUTPUT EQUIPMENT  
A digitising table unit for use with a digital computer having two parallel table surfaces with a digitising pen on the top table surface and a bug below that surface movable along x and y axes by...
3761947 DISPLAY CONVERTER FOR RECORDING MULTIPLICITY OF OSCILLOSCOPE TRACES  
An oscilloscope, serving to display the traces of different output voltages of a test circuit representing at least two circuit parameters (amplitude and phase) in various test-frequency bands, is...
3720056 DRIVE OR INDICATING SYSTEM EMPLOYING FLUID CONTROLS  
This invention relates to a system in which a head is displaced from, but is in contiguous relationship to, a platen and is driven or is positionable along either a single axis or a pair of...
3706877 DENSITOMETER HAVING AN ANALOG COMPUTER FOR CALCULATING A FRACTION OF THE TOTAL AREA UNDER A CURVE  
A densitometer which provides complete electrophoresis results on a single sheet. An electrophoresis sample is scanned by a beam of light energy. The light energy transmitted through the sample is...
3701992 SERVOSYSTEM FOR GRAPHICAL RECORDER  
An X-Y graphical recorder has a moving pen which is moved along each axis by a position feedback servosystem responsive to digital data from a vector generator. The servosystem includes two...
3695154 VARIABLE APERTURE PHOTOEXPOSURE DEVICE  
In a photoexposure device for exposing lines on a photosensitive surface a rectangular aperture is used to form a rectangular spot of light projected onto the photosensitive surface and moved...
3689932 SCANNING DEVICE FOR EXPOSING A PHOTOSENSITIVE SURFACE  
A device for producing graphic art work by exposing a photosensitive surface consists of a device having a working surface for supporting a sheet of photosensitive material and a carriage movable...
3681773 GRAPHICAL PLOTTER  
An improved two axis graphical plotter designed particularly for use in remote terminals of time shared computer systems is disclosed. It may be connected via any suitable digital transmission...
3665610 X-Y PLOTTER TOY  
A toy which enables a child to draw pictures by remote manipulation of a writing instrument, including a frame for supporting a sheet of paper, a marker holder for holding a writing instrument...
3641583 ELECTRODYNAMIC TRANSDUCER  
An input/output assembly comprises a pair of members coupled such that a first thereof carrying an input/output element is reciprocative relative the second at each position of the second; and...

Matches 1 - 50 out of 148 1 2 3 >