Abstract: According to one embodiment, a limpness detecting device includes a transmitting unit to irradiate an acoustic wave towards a conveyed sheet to excite a Lamb wave, a first receiving unit to detect a leaky wave of the Lamb wave emitted from a front surface of the sheet, a second receiving unit to detect a leaky wave of the Lamb wave emitted from a back surface of the sheet, a comparison data calculating unit to calculate comparison data based on the signal detected by the first receiving unit and the signal detected by the second receiving unit, and an intactness judgment unit to compare the comparison data calculated by the comparison data calculating unit with a preset standard value and judge whether the sheet is an intact bill or not, based on a result of the comparison.

Abstract: According to one embodiment, a vehicle passage tread sensor buried in a road in a direction substantially perpendicular to a traveling direction of a vehicle, includes a pipe including a cavity inside and formed of an elastic material, a fluid filling the cavity of the pipe, and a fluid pressure sensor configured to measure a pressure of the fluid.

Abstract: The invention provides a neutralization apparatus which simplifies an apparatus composition, lowers an apparatus cost and removes electrical charge effectively from a ribbon-like substance which is charged by stripping, and provides a printer having the neutralization apparatus. The neutralization apparatus neutralizes an ink ribbon. The neutralization apparatus has a conductive roller which is arranged so as to contact the surface of the ink ribbon and a neutralization brush which counters the back of the ink ribbon. A balance of the electrical charge of the surface and the electrical charge of the back of the ink ribbon is broken by electrical discharge caused by the conductive roller. And thereby, the charged voltage of the electrical charge of the back of the ink ribbon becomes large and the neutralization brush remove the electrical charge charged to the back of the ink ribbon effectively.

Abstract: A stiffness detector includes a bending portion configured to bend a paper sheet to be carried. The stiffness detector transmits acoustic waves to an incidence point on an inner surface of the paper sheet which is bent by the bending portion and is carried, thereby exciting Lamb waves. The stiffness detector receives leaky waves of the Lamb waves emitted from a detection point on the inner surface of the paper sheet. The stiffness detector specifies a maximum crest value based on the received signals, and judges whether the paper sheet is an unimpaired sheet based on the specified maximum crest value.

Abstract: A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle.

Abstract: A cleaning apparatus for a roller includes a platen roller and a cleaning roller brought into contact with the platen roller to clean a surface of the platen roller, where the cleaning roller is configured such that SP values (dissolution parameter) of the cleaning roller and of all additives added in the cleaning roller have differences of at least 2.0 from an SP value of the platen roller.

Abstract: According to one embodiment, a limpness detecting device includes a transmitting unit to irradiate an acoustic wave towards a conveyed sheet to excite a Lamb wave, a first receiving unit to detect a leaky wave of the Lamb wave emitted from a front surface of the sheet, a second receiving unit to detect a leaky wave of the Lamb wave emitted from a back surface of the sheet, a comparison data calculating unit to calculate comparison data based on the signal detected by the first receiving unit and the signal detected by the second receiving unit, and an intactness judgment unit to compare the comparison data calculated by the comparison data calculating unit with a preset standard value and judge whether the sheet is an intact bill or not, based on a result of the comparison.

Abstract: A stiffness detector includes a bending portion configured to bend a paper sheet to be carried. The stiffness detector transmits acoustic waves to an incidence point on an inner surface of the paper sheet which is bent by the bending portion and is carried, thereby exciting Lamb waves. The stiffness detector receives leaky waves of the Lamb waves emitted from a detection point on the inner surface of the paper sheet. The stiffness detector specifies a maximum crest value based on the received signals, and judges whether the paper sheet is an unimpaired sheet based on the specified maximum crest value.

Abstract: A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle.

Abstract: The invention provides a neutralization apparatus which simplifies an apparatus composition, lowers an apparatus cost and removes electrical charge effectively from a ribbon-like substance which is charged by stripping, and provides a printer having the neutralization apparatus. The neutralization apparatus neutralizes an ink ribbon. The neutralization apparatus has a conductive roller which is arranged so as to contact the surface of the ink ribbon and a neutralization brush which counters the back of the ink ribbon. A balance of the electrical charge of the surface and the electrical charge of the back of the ink ribbon is broken by electrical discharge caused by the conductive roller. And thereby, the charged voltage of the electrical charge of the back of the ink ribbon becomes large and the neutralization brush remove the electrical charge charged to the back of the ink ribbon effectively.

Abstract: A cleaning apparatus for a roller includes a platen roller and a cleaning roller brought into contact with the platen roller to clean a surface of the platen roller, where the cleaning roller is configured such that SP values (dissolution parameter) of the cleaning roller and of all additives added in the cleaning roller have differences of at least 2.0 from an SP value of the platen roller.

Abstract: A take-out roller which rotates and contacts a paper sheet supplied to a take-out position has an outer layer to contact the paper sheet and an inner layer provided inside the outer layer. The outer layer is made of relatively hard rubber material with a sufficient coefficient of kinetic friction. The inner layer is made of relatively soft non-foamed rubber material deformable by a relatively weak force. When the take-out roller contacts the paper sheet supplied to the take-out position in the inclined state, the inner layer is largely deformed, and the outer surface of the outer layer stably contacts the surface of the paper sheet.

Abstract: A paper taking out device includes a rubber roller which rotates in contact with a paper medium to take out the paper medium. The rubber roller is formed of a rubber material negatively electrified by sliding with the paper medium.

Abstract: A sheet processing apparatus takes out postal matters that are inserted by a take-out roller, and separates them in sheets by a feed roller and a reversing roller, and feeds into the apparatus. A cleaning roller having rubber sponges having foamed vesicles in mean diameter 50 to 500 ?m is provided to the feed roller in contact with it. Paper-dusts on the surfaces of the feed roller and the reversing roller are removed by driving this cleaning roller to rotate at a velocity equal to or higher than a rotating speed of the feed roller.

Abstract: {W—CuxSb-balance Cu} alloy is employed for contacts. As the anti-arcing constituent in the alloy W or WMo in a content of 65 to 85%, of grain diameter 0.4 to 9 &mgr;m is employed. As auxiliary constituent, CuxSb is employed, the content of the CuxSb being 0.09 to 1.4 weight %, the x being x=1.9 to 5.5, the grain diameter being 0.02 to 20 &mgr;m, and the mean distance between grains being 0.2 to 300 &mgr;m. As conductive constituent, Cu or CuSb solid solution is employed, the Sb content present in solid solution form in the CuSb solid solution being less than 0.5%. As a result, not only is dispersion of CuxSb, which is evaporated on subjection to arcing, reduced, but also generation of severe cracks, which have an adverse effect in terms of occurrence of restriking. Arcing at the contacts surfaces is prevented, suppressing dispersion and exfoliation of W grains.

Abstract: A method is proposed for the production of high-strength low-expansion cast iron enabled to acquire improved strength, hardness, and cutting workability while retaining the property of low expansion intact. The product is a low-expansion cast iron having a high nickel content and exhibiting a coefficient of thermal expansion of not more than 8.times.10.sup.-6 /.degree. C. at temperatures in the range of from room temperature to 100.degree. C. By causing a carbide to be finely precipitated in an area ratio in the range of from 0.3% to 20% in the metal structure of the cast iron and lowering the C content in the cast iron, there is produced a high-strength low-expansion cast iron. The deposition of the carbide mentioned above is accomplished by incorporating in the material for cast iron at least one element selected from the group consisting of the transition metal elements of IVa, Va, and VIa Groups in the Periodic Table of the Elements.

Abstract: A separation type grinding or polishing (hereinafter "grinding") surface plate (11) comprises a surface plate body (12) connected to a drive of a grinding apparatus directly or through a water cooled jacket or the like, and a disk (13) for grinding which is adapted to rotate together with the surface plate body (12) and contact an article being ground directly or through an abrasive cloth (14). The disk (13) for grinding is detachably held on the surface plate body (12) by vacuum suction or magnetic forces. Accordingly, it is possible to ensure an accuracy in a cleaning operation of a surface plate, a replacing operation of an abrasive cloth or the like as well as labor saving and to prevent lowering of a grinding accuracy due to thermal deformation.

Abstract: A sleeve (6) serving as both a molten metal receiver and a pressure cylinder for a die casting machine is formed out of a metal material having a thermal conductivity of not more than 20 W/mK. Concretely speaking, the sleeve (6) is formed out of an iron-based alloy containing at least 7-19 wt. % of Ni and having metallographic/structure comprising mainly a martensite phase or a mixed phase of a martensite phase and an austenite phase. The iron-based alloy contains at least one kind of metal selected from the group consisting of 3-8 wt. % of Si, 0.3-2 wt. % of C, and 0.03-0.1 wt. % of Mg and Ca, and not more than 1.0 wt. % of Mn, and this alloy is, for example, spherical graphite cast iron. Since the sleeve (6) is formed out of a metal material of such a low thermal conductivity, the mixing in of a solidification phase is minimized, and high reliability and durability can be obtained.

Abstract: A lapping surface plate consisting of an Fe-base material containing 0.8 to 3.5 wt % of C, 1 to 7 wt % of Si, 5 to 15 wt % of Ni, and 1 wt % or less of Mn, the balance substantially being Fe, further containing 0.1 wt % or less of at least one element selected from the group consisting of Mg, Ca, and Ce, and having a graphite structure and a hardness of 250 Hv or more.

Abstract: A polishing apparatus includes a detachable light weight cloth cartridge which shows little deformation under uneven loading during a polishing operation. Either mechanical or non-mechanical fixation of the cloth cartridge to a turntable is achieved. Mechanical fixation involves attaching the cloth cartridge to the turntable at peripheral and center sections of the cloth cartridge. Non-mechanical fixation involves attaching the cloth cartridge to the turntable by a vacuum arrangement. The assembly of the cloth cartridge and the turntable not only produces excellent flatness on polished semiconductor wafers by maintaining a level polishing surface, but also improves the production yield by preventing breakage of wafers during the polishing process.