摘要:
A machining program for controlling a numerical control machine tool is edited by a machining program editing function of a numerical control apparatus. Machining step division codes and machining step identification codes are input, and machining step unit programs are defined by dividing the machining program on the basis of machining step division blocks. Machining step identification codes are extracted for each of the machining step unit programs and are defined as the machining step names of the machining step unit programs. The machining step names are displayed on a screen according to the sequence of the execution of the machining step programs. Locations of the machining step names are changed according to externally input commands. The sequence of the execution of the machining programs is converted according to the thus changed locations of the machining step names.
摘要:
A numerical control method and an apparatus sets the feed rate at the time the first action ends as a tapping feed rate, and sets the spindle rate at the time the second action ends as a tapping spindle rate, and starts the third action after the first and second actions end simultaneously. In a tapping process where the spindle angle at the start position is set at a predetermined tapping start angle, the first action for setting the feed shaft position at the tapping start position and the second action for setting the spindle angle as the tapping start angle are executed simultaneously, and the third action is executed without changing the feed and spindle rates because the feed rate has already been set at the tapping feed rate and the spindle rate has already been set at the spindle tapping rate at the time when the first and second actions end. The series of actions such as reducing, suspending, and increasing the speed of the feed shaft in the second action every time a tapping is performed can be avoided so as to thereby achieve a higher speed tapping as well as a higher productivity.
摘要:
An improved stripline filter is disclosed which includes a laminate of a pair of dielectric substrates each having an outer surface provided with a ground conductor, and conducting resonator means provided between each of the two adjacent dielectric substrates and having a plurality of parallel resonator fingers each having an open circuit end and a base end electrically connected to said ground conductor, in which the ground conductor has extended portions corresponding in number to the number of the resonator fingers, each of the extended portions extending toward the open circuit end of the corresponding resonator finger and terminating with a predetermined space from the open circuit end of the corresponding resonator finger.
摘要:
A camera including: and an objective lens, a finder for observing an object image, an array of minute prisms for presenting a display of characters in a viewing area of the finder, a light source for illuminating the minute prisms, a reflector for directing a light beam from the light source to the minute prisms, and a provision for absorbing undesirable light arranged on the side portion of the finder to absorb that part of the light which has passed through the prisms which would otherwise be refracted in a predetermined direction by the minute prisms.
摘要:
A picture signal compression coding device is disclosed which divides digital picture data constituting a single picture into a plurality of blocks and codes the picture data block by block by two-dimensional orthogonal transformation. An orthogonal transforming section transforms the digital picture data divided into the plurality of blocks by two-dimensional orthogonal transformation. A normalizing section normalizes the transformed data, while a coding section codes the normalized data. A block activity calculating section calculates an activity of the picture data block by block. An activity summing section sums the block-by-block activities to produce a total activity. A coded data distributing section calculates an amount of coded data to be distributed to each of the blocks on the basis of the ratio of the block-by-block activity to the total activity. A coded output control section limits the amount of coded data to be distributed to each of the blocks from the coding section in response to an output of the coded data distributing section. The block activity calculating section has a subdividing section for subdividing each of the blocks of picture data into a plurality of subblocks, a subblock activity calculating section for calculating the activity of the picture data subblock by subblock, and a difference calculating section for determining a difference between nearby ones of the subblocks with respect to the mean value of subblock-by-subblock picture data.
摘要:
A camera body includes a movable main mirror for reflecting a light beam emerging from an objective lens, an optical element arranged along a reflection optical path of the movable main mirror and near a predetermined imaging plane of the objective lens, and having a plurality of micro refracting elements forming a display character, an eyepiece, a prism for deflecting the reflection optical path toward the eyepiece, and an illumination source, arranged in front of the prism, for causing the movable main mirror to reflect an illumination light beam to illuminate the display character.
摘要:
A primer comprising an organometallic compound and an organic polymer, which is useful in bonding non-polar or highly crystalline resin substrates together or bonding said resin substrates and another material, such as a solid material, a coating material, paint or printing ink by using a 2-cyanoacrylate.
摘要:
In an apparatus in which cylindrical articles violently collide with one another as they roll down on the inclined skid rails, from the inlet to the outlet thereof, a control rail covered thick with a soft and elastic foamed substance is located. The control rail is positioned side by side in parallel to the skid rails, and frequently reciprocated vertically to brake the articles as they move downwards over the skid rails so that the maximum rolling speed is sufficiently reduced for restricting the noise of collision below an allowable level.
摘要:
Steel sheets having an excellent enamelability are produced by adjusting the carbon, silicon, manganese, aluminum, oxygen and boron contents in a molten steel to be not more than 0.020% of carbon, not more than 0.03% of silicon, not more than 0.50% of manganese, not more than 0.010% of aluminum, nor more than 0.050% of oxygen, boron within a range of 0.003-0.020% being in such an amount B(%).times.0(%) of more than 1.times.10.sup..sup.-5 and the remainder being inevitable impurities and iron, and hot rolling the resulting steel, cold rolling the steel and subjecting to a recrystallization annealing in a conventional manner.
摘要:
A cast cylinder head 1 of an internal combustion engine to be mounted on a vehicle has an intake-side side wall 2i, an exhaust-side side wall 2e, and opposite end walls 3r and 3f. The walls 2i, 2e, 3r and 3f define a water jacket 8. A first cooling water exit part 11 and a second cooling water exit part 21 both having a solid structure are formed by casting integrally with one of the intake-side side wall 2i and the exhaust-side side wall 2e and with one of the end walls 3r and 3f, respectively. Cooling water exit openings 15,16 or 25,26 opening into the water jacket 8 are drilled selectively in either of the first cooling water exit part 11 and the second cooling water exit part 21 depending on the engine mounting position on the vehicle. Thus the same cylinder head can be used independently of the mounting orientation of the engine on the vehicle.