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Curtain grommets, used among others in shower curtains. A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb.
The name of the machine was the Leavers machine (the 'a' was added to aid pronunciation in France). The original machine made net but it was discovered that the Jacquard apparatus (invented in France for weaving looms by J M Jacquard in about 1800) could be adapted to it. From 1841 lace complete with pattern, net and outline could be made on ...
Brown & Sharpe Single Spindle screw machine. Model #2 Square Base, four-slide machine. 1 1 ⁄ 2 cap or 1 3 ⁄ 4 Air Feed.. Screw machines, being the class of automatic lathes for small- to medium-sized parts, are used in the high-volume manufacture of a vast variety of turned components.
Through the middle of the machine there is a conveyor belt, along which blank PCBs travel, and a PCB clamp in the center of the machine. The PCB is clamped, and the nozzles pick up individual components from the feeders/trays, rotate them to the correct orientation and then place them on the appropriate pads on the PCB with high precision.
A screw machine may refer to a: Screw machine (automatic lathe), a small- to medium-sized automatic lathe that is mechanically automated via cams; Screw machine (turning center), a small- to medium-sized turning center that is electronically automated via CNC; Screw-cutting lathe; Turret lathe, now rarely called screw machines
A Woodworking machine is a machine that is intended to process wood. These machines are usually powered by electric motors and are used extensively in woodworking . Sometimes grinding machines (used for grinding down to smaller pieces) are also considered a part of woodworking machinery.
The general concept of artificial machines capable of producing copies of themselves dates back at least several hundred years. An early reference is an anecdote regarding the philosopher René Descartes, who suggested to Queen Christina of Sweden that the human body could be regarded as a machine; she responded by pointing to a clock and ordering "see to it that it reproduces offspring."
The rival machine, the throstle frame or ring frame was a continuous process, where the roving was drawn twisted and wrapped in one action. The spinning mule became self-acting (automatic) in 1830s. The mule was the most common spinning machine from 1790 until about 1900, but was still used for fine yarns until the 1960s.