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Of the nine patents pooled, three were particularly crucial: the lockstitch, the four-motion feed, and the combination of a vertical needle with horizontal sewing surface. [5] In addition to its four member companies, dozens of other companies licensed its patents, for which they paid royalties and submitted annual production reports.
A combination print made from six different negatives. Combination printing is a photographic technique of using the negatives of two or more images in conjunction with one another to create a single image. Similar to dual-negative landscape photography, combination printing was technically much more complex. The concept of combination printing ...
Commercial machine embroidery in chain stitch on a voile curtain, China, early 21st century. Machine embroidery is an embroidery process whereby a sewing machine or embroidery machine is used to create patterns on textiles. It is used commercially in product branding, corporate advertising, and uniform adornment.
A combination square is a multi-purpose measuring and marking tool used in metalworking, woodworking, and stonemasonry. It is composed of a rule and one or more interchangeable heads that can be attached to the rule. [1] [2] Other names for the tool include adjustable square, combo square, and sliding square.
A combination machine takes up much less space than the equivalent separate machines. Most European machines have a sliding table that tends to make them safer than typical North American table saws. Even though top end combination machines can be quite expensive, there usually is a cost saving over separate machines of similar quality.
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For example, a dark blue handkerchief indicates an interest in anal sex, and wearing it in the left pocket indicates a preference for being the penetrating partner. The code was first used in the 1970s in the United States , Canada , Australia , and Europe , by gay and bisexual men seeking casual sex or BDSM practitioners.
Bar tacks may be sewn by hand, using whip stitches, or by machine, using zigzag stitches. [1] The process for sewing a bar tack is essentially to sew several long, narrowly-spaced stitches along the line of the bar that will be formed, followed by short stitches made perpendicular to the long stitches, through the fabric and over the bar. [ 4 ]