Abstract: A simplified and compact typing machine to be incorporated in an electronic calculator has a type wheel for presenting different numerals upon rotation. The type wheel is moved along a line of digits, i.e., laterally and in the generally horizontal direction, for typing successive numerals and the typing is performed when a hammer head is swung, or the type wheel is rotated, by the movement in one direction of an acting rod of an electromagnetic relay. The same relay acting rod also laterally moves the type wheel in the direction of the line of digits, on its return motion, by a distance corresponding to the space of one digit.
Abstract: A wire matrix printer mechanism is designed to print a series of alpha-numeric characters and symbols by mechanically impacting an inked ribbon with a column of small diameter steel wires, driving the ribbon into paper riding on a platen. The body through which the print members pass is a molded structure having a separate channel for each print member. Each channel has a path consistent with the elastic curvature of the corresponding print member to provide a path of least resistance.
Abstract: A tape printer adapted so that a tape which employs a paper tape for printing is extended to a printing position, a type of a type wheel is opposed to a tape leading part at said printing position, said type and tape leading part are impressed to print the type onto the paper tape, said type wheel is provided with types arranged on its periphery in sequence in a circumferential direction of the type wheel and the type wheel is rotated to move a desired type to the printing position.
Abstract: There is disclosed an impact device for operation from a source of alternating power and with at least striking member adapted to be electromagnetically actuated to impact against an opposing surface. An electrical gate under the control of a switching circuit and at a given point in time and for a given time duration connects a source of alternating power to the electromagnetic striking member. A source of gate control pulses for rendering the electrical gate conductive and non-conductive is connected through the switching circuit under the direction of a switch control circuit to the electrical gate for selecting which of the gate control pulses are to be connected to the electrical gate.
Abstract: A keyboard, actuatable with the aid of fingers of at least one hand is described which keyboard includes a support frame, a normal row of keys therein, each of which can be moved out of an initial position of the fingers by the tips of the index finger, middle finger, ring finger and little finger, respectively, which keyboard has a hand rest for the ball of the thumb or wrist of the hand, the fingers of which are operative, on which hand rest this hand can be continuously supported in a rest position during actuation of the keyboard, and wherein the keys of the normal row are arranged on a curve for the fingers of each hand, which curve corresponds to the natural disposition of the finger-tips when the fingers are, without being tensioned, in a slightly curved, spread, but unstretched position. Each key has an unactuated rest position in which the tip of the finger associated therewith is able to rest thereon.
Abstract: In a matrix print head, a plurality of elongated printing elements, mounted in a frame, are driven axially by electromagnetic means to effect printing on record media positioned adjacent to the printing ends of the printing elements. A dampening element, of generally conical configuration, is centrally disposed in the frame, within the volume defined by the plurality of printing elements, in order to dampen the bending and vibration of the printing elements, and thus reduce or eliminate consequent fatigue failure.
March 7, 1977
Date of Patent:
March 28, 1978
Robert L. Schrag, Harold A. Long, Robert T. Harvey
Abstract: A dot matrix printer including a single printhead having two columns of print wires, the wires in one column being used to print only odd numbered dot columns on a record member and the wires in the other column being used to print only even numbered dot columns on the record member. In one embodiment the wire columns are spaced apart a distance equal to an even number multiple of the space between two adjacent dot columns and the wires in each column are then energized alterntely as the printhead traverses the dot column positions. In another embodiment the wire columns are spaced apart an odd number multiple of the space between two adjacent dot columns and the wires in each column are then energized simultaneously as the printhead traverses the record member.
Abstract: A dot-matrix printing device for a printing office machine, comprising a series of striking bars in the proximity of the recording medium movable transversely of the medium for printing dots in different locations. The bars are adapted to be actuated by the armatures of corresponding electromagnets for impressing individual dots of characters. The striking bars are guided in the proximity of the recording medium by a movable guide which effects the transverse movement and each electromagnet has a fixed core and a movable armature in articulated engagement with the corresponding bar. Each armature is provided with an actuating spring which tends to move the armature away from the core of the electromagnet.
Abstract: An opaque flag mounted upon a printer carriage assembly interrupts the light emmitted by a LED from reaching a phototransistor when at the left-hand margin of the paper document. The carriage starts to move and when it reaches constant print velocity, the opaque flag moves away from the LED and the phototransistor to activate the phototransistor to trigger a gated oscillator to generate pulses of very uniform size and shape and preferably of a 50% duty cycle. The leading and trailing edges of the pulses from the gated oscillator generate strobe and delay strobe pulses of shorter pulse duration which, in turn, energize the wire actuating solenoids forming full-step and half-step dots the full-step dots creating characters within a 5 .times. 7 dot matrix and both the half-stepand full-step dots being forming characters within a 9 .times. 7 dot matrix.When printing is completed, a PRIME signal resets and abruptly stops the gated oscillator.
July 8, 1976
Date of Patent:
February 28, 1978
Centronics Data Computer Corporation
Prentice I. Robinson, Thomas T. Butterfield
Abstract: A method for surface embossing mineral fiber sheets, comprising mineral fibers, perlite and binders, is disclosed. A liquid, preferably water, is sprayed on the surface of the board to be embossed and the wet surface is compressed at an elevated temperature of from 550.degree. to 750.degree. F for about 0.1 to about 2 seconds. The elevated temperature rapidly forms steam which penetrates the sheet surface to be embossed by the simultaneous application of pressure.
Abstract: The preferred embodiment of the invention disclosed herein is an address printer including roller means for feeding a workpiece, for example, an envelope, on which printed material is to be duplicated, liquid application roller means for applying a copying liquid on the workpiece being fed and delivery means for delivering a master card on which the printed material, for example, an address, to be printed is contained. Both the workpiece and the master card are delivered to print rollers which print the printed material from the master card on the workpiece. Also included is a drive shaft for rotating the roller means and also an operating shaft arranged to operate the liquid application roller means and the delivery means. Coupling means adjustably connects the drive shaft to the operating shaft whereby the operation of the liquid application roller means and delivery means can be adjusted relative to the feed roller means so that the location of the print position on the workpiece can be adjusted.
Abstract: A tape printer which is for use with pressure-sensitive paper tape and which prints characters in the form of dots disposed in a 7.times. 7 or 7.times. 5 matrix has its printing elements formed by a stack of seven metal strips. Each of these strips has an associated electromagent and upon energization of any one of these electromagnets the associated strip is moved longitudinally to cause the paper tape to be squeezed between an end of the appropriate strip and a rectilinear edge of a fixed anvil so as to cause a dot to be printed. The dimensions of such a dot are determined in one direction by the width of the operated strip and in the other direction by the width of the edge of the anvil. An electric motor is provided to advance the tape.
October 14, 1975
Date of Patent:
February 7, 1978
The General Electric Company Limited
Bernard S. Barnaby, Cyril W. Coe, Godfrey S. Hall, John H. Leworthy
Abstract: A loader bucket comprises a pair of laterally spaced end walls and a cutting edge secured forwardly on a bottom wall of the bucket, between the end walls. A corner tooth assembly is detachably mounted on each of the end walls, adjacent to the cutting edge, and comprises an adapter having a forwardly extending adapter portion and an earthworking tip detachably mounted on the adapter portion. The adapter further comprises outer and inner mounting portions straddling the end wall and secured thereto by a single bolt extending transversely therethrough. In a first embodiment of this invention, a pair of first force transmitting surfaces are formed rearwardly on the adapter portion to abut a flat forward edge of the end wall and a bevelled surface of the cutting edge, respectively. A pair of longitudinally spaced second force transmitting surfaces are formed on a bottom portion of the adapter, secured to the outer portion thereof, to abut the underside of the cutting edge.
Abstract: An arrangement for recording characters composed of matrix-like rastered character elements by means of a matrix printer to provide varying configurations to the recorded characters, by electrically varying the relationship of the respective character elements with respect to time.
Abstract: This invention relates to numbering assembly incorporated into a conventional press of the offset type, which may selectively be rendered inoperative if numbering is not desired or printing is stopped, and which is automatically deactuated during the operation of the offset press if no printed material is discharged to avoid movement or change of numbers on the register in the absence of printed material on which a number is to be printed. The numbering assembly according to the invention, advantageously comprises an improved control assembly including a first electrical circuit comprising detection means responsive to the presence and absence of gripped material, a first normally open switch and a relay connected in series.
Abstract: A dot matrix pattern printer of the impact type mainly comprises a hammer of which an active portion is flattened to have a predetermined length in the lateral direction, and a vertical line element which has a predetermined length in the vertical direction and is driven to shift its position in the lateral direction. Combination of the hammer actuation, the vertical line element location, and a paper feed in the vertical direction provides a printed pattern in, for example a 5 .times. 7 dot matrix pattern.
Abstract: Combinational keyboards generally have 10 keys positioned to fall naturally under the fingertips of the two hands when the hands are in operating position. The present invention provides a keyboard with movable keys in order to accommodate the hand configurations of various operators. Combinational keyboards are generally arranged so that mathematics may be performed by the right hand only. An expanded one-handed character set results if the two thumb keys are placed adjacent each other so that the right thumb can operate both. This desirable feature is attained by (1) making the left thumb key sufficiently movable that it may be positioned adjacent the right thumb key, or (2) positioning the left hand keys so that the thumb keys are adjacent, or (3) providing an additional key operable by the right thumb.
Abstract: An improved poultry cutting apparatus which is characterized by a unique combination which includes an inner mandrel adapted to retain a dressed poultry carcass thereon which is movably mounted to advance to a cutting station. The cutting station includes a unique enclosure which is adapted to receive the poultry carcass on the mandrel and cooperatively therewith maintain the proper positioning of the poultry carcass during the actual cutting operation. The enclosure is provided with a plurality of slots adapted to receive movably mounted cutting blades which are selectively disposed and actuated to cut the poultry carcass into a given desired number of selected pieces.
Abstract: An improved printing ribbon for use between a writing electrode and a permeable counterelectrode across which a pulse of predetermined magnitude and duration is applied. The material of the ribbon is such that it experiences multiple electric breakdowns causing it to be propelled through the permeable counterelectrode onto a record sheet held adjacent the permeable counterelectrode outside the sandwich. In a preferred embodiment, the ribbon is provided with a metallized coating which serves as the permeable counterelectrode.
September 20, 1976
Date of Patent:
December 27, 1977
Triumph Werke Nurnberg A.G.
Rainer Anton, Ernst Beyer, Bodo Bielefeld
Abstract: A printing device includes a wire printing head provided with a plurality of closely adjacent printing wires movable back and forth with respect to a web of printing paper with inking ribbon interposed therebetween. The device further includes a pair of spools for taking up the inking ribbon and a carriage for supporting thereon these spools and the printing head in an associated relationship. The carriage may be moved along a print line in a first direction by first drive means, and in a second direction opposite to the first direction by second drive means. Means is provided to rotatively drive said spools on the carriage in response to the movement of the carriage imparted by the first drive means. The shift of the carriage from the first direction to the second direction may be provided by an automatic reversing mechanism. The rotation of the spools on the carriage may be stopped by stop means when the carriage is being moved by the second drive means.