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A saddle stapler may also be used to staple fabric or other flexible material, as the material is bunched up inside the throat in order to reach the seam to be stapled. Most high-end photocopiers and digital production printers on the market have optional attached saddle stitch units that fold and staple booklets automatically. A manual saddle ...
A few pig passage indicators transmit the pig's passage, time and location, via satellite uplink. [23] The pig itself cannot use GPS as the metal pipe blocks satellite signals. After the pigging run has been completed, the positional data from the external sensors is combined with the pipeline evaluation data (corrosion, cracks, etc.) from the ...
Pig iron, also known as crude iron, is an intermediate good used by the iron industry in the production of steel. It is developed by smelting iron ore in a blast furnace . Pig iron has a high carbon content, typically 3.8–4.7%, [ 1 ] along with silica and other dross , which makes it brittle and not useful directly as a material except for ...
The swivel knife is held with one finger providing downward pressure upon a stirrup-like top and drawn along the leather to outline patterns. The other tools are punch-type implements struck with a wooden, nylon, metal or rawhide mallet. The object is to add further definition, texture and depth to the cut lines made by the swivel knife and the ...
By this time, Chinese metallurgists had discovered how to fine molten pig iron, stirring it in the open air until it lost its carbon and could be hammered (wrought). In modern Mandarin-Chinese, this process is now called chao, literally stir frying. Pig iron is known as 'raw iron', while wrought iron is known as 'cooked iron'.
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also raises the temperature of the iron mass ...
Cockentrice is a dish consisting of a suckling pig's upper body sewn onto the bottom half of a capon. [1] Alternately, the front end (head and torso) of the poultry is sewn to the rump of the piglet to not waste the other half. [2] Other animal combinations were also used. [3]
The pig is a specialty firefighting tool used mainly for roof ventilation, forcible entry and wall breaching. [1] Invented by a member of the Austin Fire Department , the tool combines the butt-end of a flat head axe on one side and a pick on the other.