Abstract:
A porous PTFE film having a thin thickness and good permeability is produced by coating an emulsion of polytetrafluoroethylene on a substrate surface, in particular, a porous polytetrafluoroethylene substrate which has not been heated at a melting point of unsintered polytetrafluoroethylene or higher, heating the coated substrate at a temperature not lower than a melting point of sintered polytetrafluoroethylene to semi-sinter polytetrafluoroethylene, optionally removing the semi-sintered polytetrafluoroethylene film from the substrate, and then stretching the semi-sintered film at least in one direction.
Abstract:
A method of manufacturing pneumatic tires of different tread patterns by vulcanization building in full mold process is disclosed, which comprises providing a pair of mold members separable at a plane inclusive of a parting face perpendicular to the rotary axis of the tire, determining at least two joining position on these mold members at regular intervals, and properly selecting the joining position of each mold member so as to provide a different tread pattern.
Abstract:
A large size pneumatic rubber tire for bad or rough roads comprises a number of main grooves in a tread of the tire arranged on both sides of a center circumferential line of the tread and in parallel with one another substantially equally oblique to the center circumferential line and a number of auxiliary grooves in the tread substantially in parallel with one another oblique in a direction opposite to the direction of the main grooves to connect the two main grooves adjacent in a circumferential direction. The main and auxiliary grooves have comparatively wide groove widths, respectively, and divide the tread into a center zone and two size zones. These zones respectively consist of circumferentially arranged respectively substantially same shaped center blocks and side blocks defined by the main and auxiliary grooves. The tire according to the invention can effectively eliminate extraordinary temperature rise in the tire without sacrificing the required performances such as wear-resistance, even if under severe operating conditions.
Abstract:
A casing for an interior unit of a split type air conditioner including a one piece, molded fan casing housing an upper wall, a curved rear wall connected to the upper wall, side walls connected to each of upper wall and the curved wall and a separator including a flat portion generally parallel with the upper wall.
Abstract:
This invention relates to an improvement in a pneumatic tire for construction vehicles. The improved tire makes use of a steel cord breaker, but can prevent mechanical and thermal separations in the tire. Breaker rubberized cords are designed to have a gap ratio given by ##EQU1## preferably 0.72 to 0.80, for the purpose of restraining the mechanical separation, where D is a distance between centers of two adjacent cords and d is a diameter of the cord. A tread rubber layer is designed to have a ratio R of a skid base S to a tire section height H given by ##EQU2## FOR THE PURPOSE OF RESTRAINING THE THERMAL SEPARATION.
Abstract:
A standard member for automatically, stably, and highly accurately performing magnification calibration used in an electron microscope, the standard member including, on the same plane, a multilayer film cross section formed by alternately laminating materials different from each other, a plurality of first mark patterns arranged across a first silicon layer and in parallel to the multilayer film cross section, at least a pair of second mark patterns arranged across a second silicon layer thicker than the first silicon layer on the opposite side of the first mark patterns with respect to the multilayer film cross section and in parallel to the multilayer film cross section, and a silicon layer arranged on the outer side of the first mark patterns and the second mark patterns with respect to the multilayer film cross section.
Abstract:
A printer includes a first receiving unit that receives a print job containing a printing requirement, where the printing requirement is set as either an indispensable requirement that is indispensable for executing the print job or a desired requirement that is desirable for executing the print job; a second receiving unit that receives, from each of external image forming apparatuses connected to the image forming apparatus via a network, a printability level indicating whether the external image forming apparatus has a printing function satisfying the indispensable requirement or a printing function satisfying the desired requirement; a selecting unit that selects an image forming apparatus that executes the print job from the external image forming apparatuses by checking the printability level; and a print-operation control unit that sends the print job to the selected image forming apparatus and causes the selected image forming apparatus to execute the print job.
Abstract:
A plasma display panel (200) of the present invention includes a first panel (1) and a second panel (8). A discharge space (14) is formed between the first panel (1) and the second panel (8). In the plasma display panel (200), an electron emitting material (20) is disposed to face the discharge space (14). The electron emitting material (20) contains Sn, an alkali metal, O (oxygen), and at least one element selected from the group consisting of Ca, Sr, and Ba.
Abstract:
A glass composition of the present invention is an oxide glass, in which the percentages of elements except for oxygen (O) contained therein are as follows, in terms of atom %: the amount of boron (B) exceeds 72% but does not exceed 86%, the total amount of lithium (Li), sodium (Na), and potassium (K) is 8% to 20%, the total amount of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba) is 1% to 8%, the amount of silicon (Si) is from 0% to less than 15%, and the amount of zinc (Zn) is from 0% to less than 2%. This glass composition further may contain molybdenum (Mo) and/or tungsten (W) in the range of more than 0% but not more than 3%.