Matches 151 - 200 out of 353 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
4092650 Grouped stylus electrostatic recording head  
An electrostatic recording device for the recording of grey shades which are obtained by variation of the number of image dot elements per image dot. Each pin-shaped recording electrode consists of...
4091393 Automatic pencil apparatus for an automated drafting system  
An automatic pencil apparatus for an automated drafting system comprises a gripping means for holding and lifting a lead. The lead is pressed by means of a pressing means. The gripping means is...
4088215 Record media compensation means for printers  
A printing device is provided which includes a feeler pivotally mounted on a printer frame and urged into engagement with record media positioned on a platen for printing. A magnetic element on the...
4087827 Electrode and multi-electrode recording head for a graphic recording apparatus  
An electrode and a recording head made of a plurality of electrodes. Each electrode has a mounting portion and a flexible portion having a resilient tongue and an arm provided with a recording tip...
4082619 Method of forming a comb-like electrode structure  
A comb-like electrode arrangement, for use in a recording instrument, comprises a photochemically produced platen having a plurality of individual, closely adjacent, parallel conductor tracks of...
4080609 Electrolytic recorder with additional helical cleaning stylus  
A modular electrolytic recorder comprises four mechanical subassemblies and one electrical module for easy construction and replacement. Upon the chassis subassembly is mounted the anode...
4074283 Non-mechanical printer operating in accordance with an electrographic process  
A non-mechanical printer for use in an electrographic process comprising a drum-shaped data carrier, a recording head and a gas bearing for supporting the recording head on a cushion of gas in...
4063255 Electro erosion printing head  
Guiding electrodes are built into the printing head of an electro-erosion printer using metalized paper for the purposes of equalizing paper pressure upon the printing surface of the head and...
4052714 Electrographic recording head having an integral recording electrode cleaning means  
A recording head for electrographic recording has a plurality of electrically conducting flat plate electrodes arranged in a side-by-side electrically insulated relationship on an electrically...
4034155 Electrical sensing writing pen  
A writing pen capacitively detects and amplifies signals generated by a writing table that produces a varying electrostatic field near its writing surface. The pen cartridge, which senses the...
4032930 Mechanism for the application and removal of a stylus wire on stencil material to be engraved  
In a stencil cutting device having a stylus for burning information from an original document into stencil material mounted for relative movement with respect thereto, apparatus for moving the...
4030107 Electrographic recording devices employing electrostatic induction electrodes  
A pair of high voltage switching circuits associated with first and second sources of voltage supply are connected with a pin-shaped record electrode through a resistor and an electrostatic...
4027311 Thermal writing power  
A thermal nib is provided, which is heated by being directly inserted into an electrical circuit, and which enables writing on thermal paper.
4023184 Thermal matrix type printing head  
A printer for recording images on thermally sensitive paper. It includes a head that comprises a set of longitudinally extending fingers comprising laminated highly conductive and resistive heating...
4016572 Thermographic stylus with inherent pressure control  
A thermographic stylus apparatus includes a bimetal spring element in the pen arm and a resistive heating means. The pressure exerted by the scribing element on the writing platen is varied in...
4015269 Automatic pencil apparatus for an automated drafting system  
An automatic pencil apparatus for use with an automated drafting system comprises a gripping mechanism for releasably gripping a lead and comprised of a cylindrical tube, and a collet mounted for...
4013158 Electrographic segment electrode clamping assembly  
A clamping assembly for an array of segment electrodes for use in electrographic printers and the like, includes a compressible and electrically non-conductive material disposed between the segment...
4012747 Double revolving stylus on continuous belt  
A printer comprising a stylus carrige having at least two stylii disposed on a continuously driven belt transporting each stylus in turn across a print medium. The belt is made of any flexible...
3999189 Graphic recording device  
A device for graphic recording, using a plurality of stacked electrode blocks. The electrode tip projects from the block obliquely with respect to the transport direction of the paper. Each block...
3997903 Electrographical recording system  
The recording system has a plurality of recording elements pivotally mounted to make marks in a direction substantially perpendicular to the direction of transport of the record carrier receiving...
3995281 Recording head for a recording device utilizing electrosensitive recording paper  
A recording head for a recording device utilizing electrosensitive paper, composed of a row of adjacently arranged electrode carriers, each of which consists of a flat body in which a chamber is...
3987493 Stylus for recording on heat sensitive material  
A hot stylus using a mandrel of soft material having good heat conductivity and good electrical conductivity is used to carry heat to the writing end of the mandrel. That end fits in an aperture of...
3984844 Thermal recording apparatus  
A plurality of electrodes are arranged alternately on both sides of a predetermined strip-like region of an insulated substrate, thus making up a thermal head with a plurality of heating resistor...
3978494 Stylus assembly  
A structure and method of manufacture of a disposable stylus for use as a writing tip in a printer using electrosensitive papers. The stylus comprises a plurality of conductive wires embedded in a...
3973264 Stylus assembly for facsimile receiver  
A facsimile receiver reproduces documents at remote locations automatically while unattended. The receiver includes a telephone coupler for receiving data over a telephone line, a scan converter, a...
3971042 Writing apparatus having wear resistant material  
A stylus and its method of manufacture for forming an image on the recording medium of a printing apparatus having the structure of a substrate upon which a plurality of conductors are etched or...
3971036 Plotting head for consumable marking material  
A plotting head is provided for a slender shaft of consumable marking material, such as pencil lead or graphite, which is capable of producing uniform line intensity at any plotting speed as long...
3968500 Electrode printing head and method for making the same  
A method of making an electrode printing head comprises the making of two separate sheet metal parts each formed of a series of juxtapositioned, spaced electrodes held together by at least one...
3965479 Multi-stylus printing head  
A multi-stylus printing head cell in which a plurality of styli or electrodes are placed in and bonded to a plurality of parallel grooves formed in one of the major surfaces of a base in such a way...
3961336 Electrode print head  
An improved printer embodiment that includes a print head having thin "foil" electrodes and associated spacers fashioned to maintain very precisely controlled dimensions and positioning according...
3958254 Electronic printer  
An electronic printer comprising a printing head having two straight grooves perpendicular to each other, a pin provided on a carriage and engageable with one of the two grooves, and a plate spring...
3955204 Thermoelectric matrix printing head  
A matrix printing head for use in a thermoelectric printing process has a plurality of electrical conductors which are fixed in predetermined relationship to one another. The conductors are...
3955049 Printing head  
A printing head provides an array of stylii and stylii drivers for forming characters in accordance with a desired matrix of dots. Each driver comprises a flat piezoelectric ceramic wafer and a...
3953861 Recording stylus  
A recording stylus comprising a metal blade having a stem portion and a stylus point at one end, a second metal blade adjacent said stem portion and a resilient material between the two metal...
3950200 Method of fabricating thermal printing head  
A method of fabricating a thermal printing head by printing a circuit pattern of resistive elements and electric conductors on one surface of a flat paper sheet, covering the circuit pattern and...
3950614 Remote writing apparatus  
The invention relates to a writing system having a receiver in which a pen is moved over paper in response to signals received. The pen is driven by a pair of high torque, fast response servo...
3939482 Writing apparatus  
An apparatus that may be used in an automatic drawing system for recording, for example, with pencil lead or ink. In one embodiment using a pencil lead, a push rod connects to a piston which is...
3935936 Media thickness compensation for print head  
In high-speed serial-type wire printer with platen for backing impression-receiving media and carriage for traversing print head having printing wires reciprocable at right angles to platen to...
3921181 Compliant printer blade for facsimile printer  
An improved printing blade for a facsimile printer of the drum type is made out of a thin strip of stainless steel. The blade is inserted into a rigid blade carrier and locked firmly in place by a...
3911447 Electrographic writing apparatus for a metallized strip recording medium using grounded electrodes between writing electrodes  
The electrodes of a burnout type electrographic apparatus are grounded during their idle period in order to clear any possible short circuit to an active electrode by the accumulation of metal...
3908641 Electrocardiograph with improved stylus control circuits  
An electrocardiograph unit employing a marker stylus and a writing stylus for recording signals on heat sensitive paper is disclosed. The writing stylus, upon operation of a run switch, is heated...
3903594 Method of making electrographic recording heads employing printed circuit techniques  
Electrographic recording heads are fabricated using printed circuit techniques. A head with two parallel rows of recording electrode areas is constructed by forming two confronting rows of...
3904010 Typewriter carriage assembly  
A carriage assembly for selectively displacing a printing head of a typewriter or the like across an information carrier such as paper which is supported by a platen or the like comprising, a...
3896453 Spring loading for the stylus of a pressure-sensitive chart recorder  
Arch spring loading is provided for the stylus of a recorder utilizing pressure-sensitive chart paper carried through a fixed gap between a backing plate and a transparent front plate with means...
3895387 Vibration de-coupler for use with recording systems  
A system for recording input electrical signals by positioning galvanometer pen styli on chart paper in accordance with the input signals. Each pen is mechanically linked to an optical mask. The...
3893128 Recording apparatus for electrographic imaging  
A recording head comprising a plurality of wires embedded uniformly spaced from each other in parallel relationship in insulating material with at least one end of each wire projecting beyond the...
3886311 Electrical writing pen and sensor  
A writing pen for detecting time varying electrostatic field components and used in conjunction with a writing table which generates a unique electrostatic field is disclosed.
3873986 Recording needle protection arrangement for facsimile recorder  
A clamp for securing the copy sheet to the drum is formed with cutouts to prevent interference of the clamp with releasing members for removing the sheet from the drum. The cutouts each have a...
3847021 RECORDER SLIDING BASE ASSEMBLY  
A substantially planar base is secured to a mechanical recorder housing. The base slidably supports a panel for to and fro movement with respect to the base. A Bourdon tube, including a scriber arm...
3846802 SELF RENEWING STYLUS STRUCTURE  
The present disclosure is directed to a facsimile device equipped with a disc type recorder containing a reel in which a recording stylus is accommodated. Revolution torque is afforded to the reel,...
Matches 151 - 200 out of 353 < 1 2 3 4 5 6 7 8 >