Abstract: A white or grayish white substance can be formed by dipping, in the first step, aluminum or an aluminum alloy having an anodically oxidized film in a first solution containing a specific salt or electrolyzing with said first solution, thereby causing the product from this salt to enter into the micropore of said film and then, in the subsequent second step, dipping the product from the first step in a second solution containing a substance which reacts with the product from the salt to be converted into a white or grayish white compound or electrolyzing with said second solution.

Abstract: A pickup device for picking up sound generated by the vocal chords and transmitted through bones from the nasal bone. A microphone (11) is mounted on or embedded into an eyeglass-like assembly (13, 15). When the microphone is mounted as a nosepiece, it is made into direct contact with the nose so that it directly picks up vibration transmitted through the nasal bone. When the microphone is mounted on the eyeglass-like frame or embedded therein, it picks up vibration transmitted through the nosepieces and eyeglass-like frame. A cord (12) whose one end is electrically connected to the microphone is held by holding member extended from the eyeglass-like assembly (13, 15) so that the transmission of mechanical vibration to the microphone is prevented.

Abstract: An aqueous ink is disclosed which comprises an emulsion of a polymeric dyestuff which is prepared by bonding a water-insoluble polymer containing amino groups with a dye selected from the group consisting of anion-type dyes and reactive dyes, which aqueous ink is free from globbing and skipping during writing and yields a high quality written image. When desired, a water-soluble viscosity-adjustment agent can also added to this aqueous ink. In this case, the viscosity of the aqueous ink can be adjusted to be in the range of 50 cps to 3000 cps and the ink is particularly suitable for use with a ball-point pen with a simple structure.

Abstract: Apparatus for very accurately dispensing a preselected amount of liquid in a drop-by-drop fashion. The liquid is peristaltically pumped intermittently from a reservoir to a discharge pipe by the successive squeezing and releasing of an elastic tube carrying the liquid and connected to the discharge pipe. The discharge pipe has a discharge port with a face, the face being perpendicular to the longitudinal axis of the discharge pipe. The outer diameter of the discharge pipe at the discharge port is less than or equal to twice the inner diameter of the discharge pipe at the discharge port. The preselected amount of the liquid that is dispensed in a drop-by-drop fashion from the discharge port satisfies the following conditions:(1) V=Q.times.M.times.C(2) 50 mg.gtoreq.Q(3) 0.5 seconds.ltoreq.M(4) 3/seconds.gtoreq.C(5) 1.5.ltoreq.M.times.Cwherein:V is the weight of the produced liquid drop,Q is the feed quantity of said liquid,M is the time interval between successive drops, andC is the cycle of the pump.

Abstract: A vibration threading lathe has a cutting tool vibrated by an ultrasonic vibrator and supported by a tiltable frame which is so tiltable that the cutting tool can be inclined at the lead angle of the screw thread. As a result, screw cutting can be accomplished with remarkably low resistance to cutting, without burrs, and with a remarkably low rate of abrasive wear of the cutting tip. This lathe is highly suitable for threading articles of difficult-to-machine materials such as stainless steel, titanium, and beryllium copper, and particularly tubular articles of small diameters and having thin walls.

Abstract: A method for very accurately dispensing a preselected amount of liquid in a drop-by-drop fashion. The liquid is peristaltically pumped intermittently from a reservoir to a discharge pipe by the successive squeezing and releasing of an elastic tube carrying the liquid and connected to the discharge pipe. The discharge pipe has a discharge port with a face, the face being perpendicular to the longitudinal axis of the discharge pipe. The outer diameter of the discharge pipe at the discharge port is less than or equal to twice the inner diameter of the discharge pipe at the discharge port. The preselected amount of the liquid that is dispensed in a drop-by-drop fashion from the discharge port satisfies the following conditions:(1) V=Q.times.M.times.C(2) 50 mg.gtoreq.Q(3) 0.5 seconds.ltoreq.M(4) 3/seconds.gtoreq.C(5) 1.5.ltoreq.M.times.Cwherein:V is the weight of the produced liquid drop,Q is the feed quantity of said liquid,M is the time interval between successive drops, andC is the cycle of the pump.

Abstract: A capillary nib for pens is shaped from a thermoplastic resin bar and has a cross-sectional shape comprising an outer shell and a plurality of projections joined integrally at their bases to the outer shell at equal angular spacing intervals and projecting centripetally toward the center of the cross section, voids constituting principal capillary ink passages being formed between the projections, alternate projections extending fully to the center and being joined together. The thermoplastic resin bar is formed by extruding the resin in molten state though a die having a large number of orifices disposed in a specific arrangement thereby to form a plurality of filaments of the resin and causing the filaments to adhere longitudinally while the surfaces thereof are still substantially in molten state thereby to form the bar. Each passage or channel has substantially identical transverse width across its cross-sectional area.

Abstract: A magnetic reversal type display panel which provides clear display of records which can easily be raised by an erasure magnet. A liquid dispersion is sealed between two opposed surface plates, preferably in a cell structure. The liquid dispersion contains fine reversible magnetic display grains having magnetic poles of opposite signs tinged with different colors, a dispersion medium and a fine grain thickener. The fine reversible magnetic display grains have a residual magnetic moment within the range of 0.2 to 10 emu/g and a coercive force of not less than 500 oersteds and the liquid dispersion has a yield value of not less than 5 dynes/cm.sup.2.

Abstract: A liquid discharge device using a peristaltic pump having a depression and delivery system including an elastic tube for introducing compressed air into a liquid reservoir to be maintained in a selective pressurized state. A motor drive circuit is adjusted to vary motor rotation to sequentially squeeze and release one end of the elastic tube thereby varying the rate of pressurization in the reservoir.

Abstract: A fountain pen in which ink is supplied to the tip of the pen under the control of a motor-actuated ink delivery device. An ink holder is formed covering the slit formation region of the pen tip to form an ink pool between the holder and pen tip. A detector is provided in the ink pool for detecting the quantity of ink therein at any time. A pen holder coupled to the pen tip includes an ink storing section opening into the ink pool, an ink delivery device coupled to the ink storing section for delivering ink under pressure, and an electrical power source and a power delivery circuit for controlling the flow of current to an operating motor.

Abstract: A duplication printer has a movable base slidably accommodated in a frame case and provided with a cushioning layer on which a relief plate bearing a relief pattern on top is placed, and then, on the relief plate, are stacked successively from bottom to top a paper sheet, a transfer sheet having a lower surface of an ink layer facing the paper sheet, a tacky sheet with a tacky layer on its upper surface, and a display sheet having light transmitting characteristic. The movable base is positioned within the frame case and is drawn outwardly from the frame case, a pressure bar passes relatively over the stack of sheets, whereupon the relief pattern is printed via the ink layer on the paper sheet and, simultaneously, the image of the pattern is displayed on the display sheet. Thus, the pattern on the display sheet can be observed by an operator without removing the paper sheet from the printer.

Abstract: A fountain pen in which the resiliency of the pen tip is continuously variable. The pen tip and core are surrounded at their mounting end by a pen core cover. A guide slot is formed in a guide portion of the cover in which is positioned a flexible tongue-shaped retaining member which arches from the slot towards the pen point. A knob extends from the mounting portion of the retaining member into a spiral groove in the inner surface of a rotatable cylindrical adjustment sleeve. Rotation of the sleeve moves the retaining member in and out to thereby adjust the resiliency of the tip.

Abstract: A capillary nib for pens is shaped from a thermoplastic resin bar and has a cross-sectional shape comprising an outer shell and a plurality of projections joined integrally at their bases to the outer shell at equal angular spacing intervals and projecting centripetally toward the center of the cross section, voids constituting principal capillary ink passages being formed between the projections, alternate projections extending fully to the center and being joined together. The thermoplastic resin bar is formed by extruding the resin in molten state though a die having a large number of orifices disposed in a specific arrangement thereby to form a plurality of filaments of the resin and causing the filaments to adhere longitudinally while the surfaces thereof are still substantially in molten state thereby to form the bar. Each passage or channel has substantially identical transverse width across its cross-sectional area.

Abstract: A print hammer in a dot printer is formed with a contactor secured to the free end portion of a leaf spring or to a contactor base provided on the free end portion of the leaf spring. The contactor is made of a wear-resistive alloy selected from the group consisting of platinum group metal alloys, alloys of platinum group metal and transition metal, and alloys of platinum group metal, transition metal and boron.

Abstract: A magnetic displaying device adapted for hanging on a wall including a displaying panel made of a hanging panel and a parallel disposed magnetic displaying panel between which is disposed a liquid containing magnetic particles. A translatable erasing magnet is arranged perpendicular to the downward direction of the device and coupled to a magnet lifting mechanism. The erasing magnet rests at either the upper or lower end of the panel and moves up and down through guiding means such as rails. A string or the like coupled to the lifting mechanism is pulled downwardly to move the erasing magnet.

Abstract: A tubular nib having a beak-shaped section at one end of a tube, a slit formed in the beak-shaped section, and a slit-widening inhibiting section having a radius of curvature larger than that of the tubular part of the tubular nib at least at the section across the innermost end of the slit in the beak-shaped part of the tubular nib.

Abstract: A fluid supplying device having a peristaltic pump with a depression and delivery system that includes an elastic tube (17) for receiving fluid and an assembly of depressing members (15) for alternately constricting and relaxing the elastic tube. A drive shaft (10) connects the depression and delivery systems to an electric motor (24). A rotary member (21) is provided on the drive shaft to rotate with the drive shaft and a plurality of discharge-amount transmitting devices (22) are provided on the rotary member in such a manner that the distances between the discharge-amount transmitting devices can be changed as desired. A detector (23) is disposed at the position of passage of the discharge-amount transmitting devices for detecting the discharge-amount transmitting devices and a switch (40) is connected between the detector and the electric motor to deenergize the electric motor.

Abstract: An electronic musical box is disclosed in which a musical score can be readily stored and reproduced and the musical score can be easily changed to another. The musical box includes a pulse generator for generating a unitary pulse for a note whose duration is the shortest in the musical score and generating integer numbers of unitary pulses for other notes in the musical score. A tone pitch generating circuit generates tone pitch signals coded by a plurality of tone pitch switches so as to correspond to the tone pitches of the notes in the musical score. The coded tone pitch signals are stored in a memory, and a musical tone generating circuit reads data stored in the memory and generates musical tones.

Abstract: A process for electrolytically treating aluminum or its alloys in the form of a strip, wire or foil material in a continuous manner which comprises continuously passing the material through an anodic oxidation treatment cell through which a direct current, alternating current or AC-superimposed direct current is caused to flow and an electrolytic coloring cell through which an alternating current or AC-superimposed direct current is caused to flow and carrying out electrolysis in both said cells to anodize and color the material in a continuous manner.