摘要:
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.
摘要:
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.
摘要:
This invention is directed to a cast iron having a graphite structure in an austenitic iron matrix and consisting essentially of, in weight %, at least about 1.0% and not more than about 3.5% of carbon, not more than about 1.0% of silicon, at least about 29% and not more than about 34% of nickel, at least about 4% and not more than about 8% of cobalt and the balance substantially all iron.
摘要:
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.
摘要:
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 μm 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.
摘要:
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. The grinding apparatus comprises the above separation type grinding surface plate (11), a vacuum system (20) or a magnetic system for detachably holding the disk (13) for grinding on the surface plate body (12), a drive system (16) for driving and rotating the separation type grinding surface plate (11), and an abrasive liquid supplying means (24) for supplying an abrasive liquid to the disk (13) for grinding.
摘要:
A lapping tool with a flatness in the range below 20 .mu.m which is made of at least cast iron having an austenitic matrix and consisting essentially of from 1% up to 3.5% carbon, up to 1.5% silicon, from 32% to 39.5% nickel, from 1% to less than 4% cobalt, up to 41% of the combined total of nickel plus cobalt and the balance substantially all iron providing a low expansion coefficient, good castability, good cutting properties and good damping capacity. (By % is meant % by weight).
摘要:
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.
摘要:
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.
摘要:
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.