摘要:
A concave portion (50) constructed by a circular hole is formed at a guide member (16) positioning a original on aboard surface (15) of an original table (14) by joining a surrounding edge portion of the original table (14) and attaching to the original. Concave portion image data displaying shadow of the concave portion (50) by reading shadow of the concave portion (50) at a scanning portion is produced, and an origin of original image data corresponding to a reading origin (47) on the board surface (15) by a control portion is set to the scanning portion based on the concave portion image data.
摘要:
An apparatus for continuous manufacture of butt-welded pipes is constituted by a heating furnace for heating a skelp continuously passed therethrough up to a predetermined temperature less than the butt-welding temperature for the material of the skelp, heaters adjacent the outlet end of the heating furnace and having spaced opposed induction heating coils on opposite sides of the path along which the skelp is passed through the heaters and adjacent the edge portions of the skelp for heating only the edge portions of the skelp discharged from the heating furnace up to the butt-welding temperature. The induction heating coils are such that the electromagnetic coupling between the induction heating coils and the corresponding edge portions of the skelp can be varied to adjust the temperature to which the edge portions are heated. A bending device adjacent the outlet end of the heaters bends the skelp into a generally tubular form, and butt-welding rolls adjacent the outlet end of the bending apparatus apply a predetermined pressure to the bent up skelp for butt-welding the edges of the skelp to each other. A cooling device along the path of the pipe between pairs of contracting rolls cools the seamed portion of the pipe to the temperature of the remainder of the pipe.
摘要:
Concerning a lamp unit which is used as a light source of an image reading apparatus, there is provided a lamp unit which reduces a change over time in the quantity of light. The lamp unit is provided with a hollow cylindrical gas-filled tube in which a gas is filled; a pair of electrodes which are secured to an outer peripheral surface of the gas-filled tube and extend in the longitudinal direction of the gas-filled tube in a mutually opposing state; an electrically insulating cladding tube surrounding the electrodes and the gas-filled tube; and a heat-accumulating member provided in contact with an outer peripheral surface of the cladding tube and extending in the longitudinal direction of the cladding tube.
摘要:
Disclosed is an A-D converter in which a voltage to be measured is subjected to first integration for a certain period of time; a reference voltage of the opposite polarity from the voltage to be measured is subjected to second integration until the integrated value obtained by the first integration returns to a predetermined value; measuring clock pulses are counted by a counter circuit in the period of the second integration; and the voltage to be measured is converted by the count value of the counter circuit into a digital value. In the A-D converter, there are provided a variable frequency divider and a memory having stored therein frequency dividing ratio determining signals for changing the frequency dividing ratio of the variable frequency divider. In the period of the second integration, the measuring clock pulses are supplied to the counter circuit through the variable frequency divider and each time the clock pulse is obtained, the frequency dividing ratio determining signals are each detected from the memory and preset in the variable frequency divider. And each time the number of clock pulses supplied to the counter circuit exceeds a certain number, the address of the memory is stepped by one. As a result of this, the frequency dividing ratio of the variable frequency divider sequentially changes, by which is obtained a digital converted value conforming to a non-linear characteristic of the voltage to be measured.
摘要:
A data copying device that copies data stored in a first data storage device to a second data storage device is disclosed. The data copying device includes a data reading unit that reads data that has an amount determined based on a number of a plurality of logical volumes included in the first data storage device storing the data to be copied and an amount of data to be transferred from each of the logical volumes, a storage unit that stores the data read by the data reading unit, and a data transfer unit that transfers the data stored in the storage unit to the second storage device.
摘要:
A copy control apparatus for controlling a copy process between disks includes a copy process execution unit, a data capacity measuring unit, and a changing unit. The copy process execution unit executes the copy process between disks by securing a storage area on a cache. The data capacity measuring unit measures a data capacity contained in a write request accepted from a host system during execution of the copy process between disks by the copy process execution unit. The changing unit changes a capacity of the storage area secured by the copy process execution unit in accordance with the data capacity measured by the data capacity measuring unit.
摘要:
A data copying device that copies data stored in a first data storage device to a second data storage device is disclosed. The data copying device includes a data reading unit that reads data that has an amount determined based on a number of a plurality of logical volumes included in the first data storage device storing the data to be copied and an amount of data to be transferred from each of the logical volumes, a storage unit that stores the data read by the data reading unit, and a data transfer unit that transfers the data stored in the storage unit to the second storage device.
摘要:
A ferritic stainless steel which exhibits improved formability and which is especially useful for making 950.degree. C. or 1000.degree. C. exhaust manifolds is disclosed, the steel composition thereof consisting essentially of, on the basis of weight:C: 0.02% or less, Si: 1.0% or less,Mn: 1.0% or less, P: 0.04% or less,S: 0.005% or less, Cu: 0.1-1.0%,Cr: 18.0-25.0%, Mo: 1.0 (exclusive)-3.0%,Nb: 0.1-1.0%, Al: 0.20% or less,N: 0.02% or less, B: 0-0.01%,C+N.ltoreq.0.03%,preferably, 21%.ltoreq.Cr+Mo+Nb.ltoreq.25%,Fe and incidental impurities: balance.
摘要翻译:公开了一种铁素体不锈钢,其表现出改善的成形性,并且特别可用于制备950℃或1000℃排气歧管,其钢组合物基本上由以C:0.02%或更少的重量组成, Si:1.0%以下,Mn:1.0%以下,P:0.04%以下,S:0.005%以下,Cu:0.1〜1.0%,Cr:18.0〜25.0%,Mo:1.0(排他性)-3.0 %,Nb:0.1〜1.0%,Al:0.20%以下,N:0.02%以下,B:0〜0.01%,C + N <0.03%,优选21% Nb≤25%,Fe和偶然杂质:平衡。