36results about How to "Improve skew" patented technology

Embodiments in accordance with present invention provide a magnetic head and a magnetic disc drive capable of preventing a side erase while providing excellent recording characteristics. According to one embodiment, in order to prevent the side erase in an increased skew angle state, a first magnetic pole surface is formed in such a shape that the projection area of the first magnetic pole surface follows a track edge positioned on the boundary side in the track in the state where the first magnetic pole surface is positioned on the track at the innermost periphery thereof included in a first region. Likewise, to prevent the side erase in the increased skew angle state, a second magnetic pole surface is formed in such a shape that the projection area of the second magnetic pole surface follows a track edge positioned on the boundary side with respect to a track in the state where the second magnetic pole surface is positioned on the track at the outermost periphery thereof included in a second region.

Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and / or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 2.5× its original length when knitting to form the circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece.

A printed circuit board may include a memory controller, a plurality of synchronous data memory devices, each synchronous memory device including at least one data pin and at least one address / command pin, an ECC memory device including at least one ECC data pin and at least one ECC address / command pin, and at least one surface. The plurality of synchronous data memory devices may be arranged around a central location on the at least one surface and each synchronous data memory device may be oriented such that the at least one data pin is further from the memory controller than the at least one address / command pin.

An image forming apparatus includes: an image forming part; a first conveyance roller that conveys a recording medium to the image forming part; a forward / reverse-rotatable second conveyance roller, located between the first conveyance roller and the image forming part in a conveyance direction of the recording medium; a contact member, in contact with the second conveyance roller, that forms a nip between the second conveyance roller and the contact member; a first conveyance roller driver that rotate-drives the first conveyance roller in the same direction as the conveyance direction of the recording medium; and a drive transmission mechanism that performs drive transmission from the first conveyance roller driver to the second conveyance roller so as to start rotation of the second conveyance roller in a reverse direction of the conveyance direction of the recording medium before a lead edge of the recording medium arrives at the nip.

Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and / or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 7× its original length when knitting to form the circular knit, elastic, single jersey, French terry, or fleece fabric. The method includes contacting the knit fabric with an aqueous solution under very low tension and under conditions of temperature and pressure for a period of time sufficient to substantially set the elastomeric material.

There is realized a self-aligning roller bearing with retainer that stabilizes the orientation of spherical rollers and prevents these spherical rollers from skewing, and which can be rotated at high speed, and furthermore which enables efficient lubricant feed into pockets 9. By rotating a turning tool 14 as it revolves, the surfaces on both sides in the circumferential direction of respective column sections are processed into concave curved surfaces that oppose a rolling surface of the respective spherical rollers across a pocket clearance into which lubricant oil can be fed. The length of the column sections 8c is less than the length in the axial direction of the spherical rollers, and greater than a half of the length, and an end portion of the side surface in the circumferential direction of the respective column sections 8c projects further in the circumferential direction than an intermediate portion thereof, and the spherical rollers are embraced in the pockets 9.A self-aligning roller bearing with a retainer enabling high speed operation by stabilizing the attitude of barrel shaped rollers to prevent the barrel shaped rollers from being skewed and the efficient feeding of a lubricant into pockets (9) and a method of manufacturing the retainer for the self-aligning roller bearing. In the self-aligning roller bearing, the both side faces of each column part (8c) in the circumferential direction are machined to recessed curved faces facing the rolling surface of each barrel shaped roller through pocket clearances allowing the lubricant to feed thereto with a cutting tool (14) revolving while rotating on its axis. Also, the length of each column part (8c) is set equal to or less than the axial length of each barrel shaped roller and more than the half of the axial length thereof, the side face tip portion of each column part (8c) in the circumferential direction are projected from the intermediate portion thereof in the circumferential direction.

The present invention relates to a lamination apparatus for a secondary battery, the lamination apparatus comprising: an electrode transfer unit for transferring one or more electrodes; a separator transfer unit for transferring one or more separators; a joining unit for joining the electrodes and the separators to each other such that the electrodes and the separators are arranged alternately from top to bottom, and transferring the joined electrodes and separators; and a position correction unit for correcting the position of the uppermost electrode placed at the top of the electrodes and separators joined by the joining unit to align the uppermost electrode with the set position of the separators.

The invention discloses a dual-area slotting blast hole arrangement structure and a blasting sinking method applied to the structure. The structure comprises two blasting slotting hole areas symmetrically arranged with respect to the center of the free face of a courtyard, each blasting slotting hole area comprises a center charging hole and a plurality of empty holes arranged around the center charging hole; a ring of peripheral holes are formed in the periphery of each blasting slotting area, the center charging holes and the peripheral hoes are filled with explosive charges, and a plurality of auxiliary holes are formed between the blasting slotting areas and the peripheral holes and are filled with explosive charges. The method is simple in working procedure, operation is easy, the one-time sinking height is large, reliability is high, the sinking effect is good, the number of drilled holes is small, energy consumption is low, and the blasting vibration is small.

The invention relates to an improved rotary cultivator with an engine provided with a fuel gas and fuel tank. The improved rotary cultivator comprises a rotary cultivator body and a wide-breadth horizontal mini-tiller, wherein the rotary cultivator body is provided with a miniature propane fuel tank and is driven by a four-stroke engine; the wide-breadth horizontal mini-tiller is provided with a blade protection plate and has the function of eliminating middle missed ploughing by combination of a guide wheel and a lift-throwing type moldboard plough. The invention also relates to a rotary cultivator adopting multiple safety measures. A safety resistance fork wheel is unlikely to incline and easy to guide, and a movable protection plate is a detachable plate; the safety is further improved by means of an external protection plate assembly, and the rotary cultivator can bounce up after being pressed and deformed since a function wave external protection plate is adopted, and the function wave external protection plate has the effects of wide breadth, vibration attenuation and multi-point balance; the rotary cultivator is provided with the blade protection plate and has the effect of eliminating the middle missed ploughing by the combination of the guide wheel and the lift-throwing type moldboard plough. Fuel gas is adopted to realize noise reduction and emission reduction. The emission of carbon dioxide and hydrocarbon is reduced, so that particle effluents are improved and the emission of oxynitride is reduced. Since the fuel gas is used, the toxicity of harmful effluents is lower than that of gasoline for combustion use. The emission effect of the fuel gas in a heating turbine is superior to that in a gasoline engine within 40 seconds, so that the safety of the complete machine is good. The fuel gas and fuel tank is easy to replace.

The invention discloses an image forming apparatus, comprising: an image forming part; a first conveying roller, which conveys a recording medium to the image forming part; a reversible second conveying roller, which is positioned at the between the first conveying roller and the image forming portion; a contact member in contact with the second conveying roller, forming a nip between the second conveying roller and the contact member; a first conveying roller a driver that rotationally drives the first conveying roller in the same direction as the recording medium conveying direction; and a drive transmission mechanism that performs drive transmission from the first conveying roller driver to the second conveying roller, to start rotating the second conveying roller in a direction opposite to the conveying direction of the recording medium before the leading edge of the recording medium reaches the nip.

The invention relates to a manufacturing method for torsion balance composite yarn for knitting and belongs to the technical field of knitting. The existing spinning device is used, and when the composite yarn is spun, a piece of core yarn with the twisted direction opposite to that of spindle rotation is fed. Simultaneously, a relation between spindle rotation speed and core yarn twisting degree is adjusted, and when the ratio of the twisting degree generated by spindle rotation to the twisting degree of the fed core yarn is 50%-68%, wrap yarn with the twisted direction of inner-layer core yarn opposite to that of an outer-layer fiber strip is spun to achieve torsional balance of the yarn itself. Under the premise that an additional device is not added, and production cost is reduced, remaining torsion of the yarn is eliminated, biasfilling of knitted fabric is controlled fundamentally, cutting use rate of fabric is improved, and smoothness and appearance of fabric surface are maintained.