In an uncropped pattern element for a knitting machine which may be a pattern disc or a pattern wheel assembled from a plurality of pattern discs, the bits of the element are adherent to means which hold them captive to the pattern element and will retain them after the bits have been severed from the pattern element. The means for holding the bits may be a moldable material, for example wax or a synthetic plastics material, introduced between the bits or in which the bits are embedded. Alternat...

A ferrous metal weight and a magnetic plate are placed on opposite sides of a thin sheet of paper, forming a pattern. They are juxtaposed so that they are attracted to one another and grip the pattern. When laid out upon a cloth, the weight and plate position the pattern with respect to the cloth to be cut. A plurality of such weights and plates are used to hold the pattern in position.

A pattern metallizing procedure is described wherein aluminum or other metal is deposited in a desired pattern on a polymeric material or other material web. The metal is charged with one polarity while a backing roll contacting the web is provided with regions charged with the opposite polarity to attract metal and with regions charged with the same polarity to repulse metal.

A pattern analyzer includes a sensor (19) for picking up an image of a pattern at a plurality of sampling points and for producing a shade signal representing the depth of shade at each sampling point. The sampled shade signals are temporarily stored in a memory (23) and, at the same time, are classified into different shade depths by a histogram forming circuit (30, 31, 32 and 33). The result of the classification is such that an amount of classified shade signals reaches a peak at two differen...

An adjustable pattern adapted to be utilized with a cutting machine having a drive motor with a drive motor output shaft and a cutting element associated with the drive motor so the cutting element follows a cutting path generally following movement of the drive motor. The adjustable pattern includes a base pattern having a surface defining a pattern path which is connectable to the cutting machine; a first drive post having a drive end connectable to the drive motor of the cutting machine; a se...

A pattern detector according to the present invention adopts a processing method wherein means is provided anew with which the intensity distribution of light reflected from or transmitted through an illuminated specimen is photoelectrically converted, and a pattern position is detected at high speed from the ratio between the primary moment and integral value of a detection signal thus derived, whereupon a symmetry calculation is executed within a narrow range around the detected value, whereby...

A pattern detector for precise position measurement of a wafer, used in a mask aligner used in manufacturing a semiconductor device is disclosed. A positioning pattern on the wafer is magnified and projected by a magnifying optical system and the magnified projected image is precisely detected to determine a position of the positioning pattern. As a light to form the magnified projected image, plurality of monochromatic lights of different wavelengths are available through optical filters and th...

A pattern discriminator receives scanning data obtained by raster scanning objects within predefined window regions with a photoelectric converter, converts the scanned data into pixel binary data by using a threshold value dependent upon the scanning position and window region and evaluates the binary data in accordance with predetermined criteria to produce an output signal indicative of the evalution. Data specifying the shapes of the desired window regions approximated by polygons is obtaine...

A pattern detector comprises a plurality of photoelectric converter elements having thin film semiconductors disposed adjacently in a line in one plane. The converter elements are shaped that they overlap one another by a predetermined length when viewed in a direction perpendicular to a direction in which the converter elements are disposed. The photoelectric converter elements may be disposed in a plurality of parallel arrays, staggered so that the center of one element in one array is opposed...

A pattern discriminator receives scanning data obtained by raster scanning objects within predefined window regions with a photoelectric converter, converts the scanned data into pixel binary data by using a threshold value dependent upon the scanning position and window region and evaluates the binary data in accordance with predetermined criteria to produce an output signal indicative of the evaluation. Data specifying the shapes of the desired window regions approximated by polygons is obtain...