2012年5月27日 星期日

Grinding Mills(grinding mill)

Grinding Mills(grinding mill)
Stone grinding mill is a tradition that goes back centuries; from the earliest times, grain was reduced to flour between a pair of stones. The rotary mills in this section, like wise, have a long history; it is rather common to see old millstones at a historic site, both in the United States, as well as abroad. During the 1880s, there was an impetus to develop small stone Behr mills. While many used special imported French stone deemed the best for flour grinding, some used certain forms of granite found in the United States. Regardless, a number of companies offered small mills for the benefit of farmers and small grain millers. A few examples are shown in this section. Unfortunately, many of the flour mill manufacturers did not advertise in the farm journals because their trade was with bona fide flour millers rather than farmers.

Today, vintage flour mills often sell at a considerable figure; a nicely restored small mill might bring up to $ 1,000. However, a mill with a poor framework or a broken stone will bring but a fraction of that figure.

Most folks preferred their corn meal and flour to be ground in a stone mill; a small burr grinder could leave the taste of iron in the finished product and that was undesirable. Even so, Appleton offered this small grinder in1917, and it was equipped with the shaker or bolter to screen the finished meal. This model is its no.4 hero pulley grinder.
There is no certainty that Foos built stone Behr mills. But its 1888 catalog includes the scientific corn meal bolter, a device for screening the ground mill. The larger particles remained on the top screen, finally going to an offal pile, while the fine-grade corn meal dropped through the screen to a waiting basket.

This 1884 illustration shows the Freeport stone Behr mill of the day, there are indications that Freeport machine co. was somehow associated with Stover manufacturing co. or other manufacturing interests of D.C. Stover. Outside of this engraving, little more is known of the Free port mill(grinding mill).

Meadows mills were very popular, being offered in various sizes and directed to the farm trade. for some years, the meadows mills were sold through international harvester dealers; this probably accounts for the substantial number of meadows mills still in existence. This advertisement of the 1920s shows many of the operating parts of the mill.

Stone Behr mills were used primarily for the reduction of corn to corn meal and wheat to flour. But as noted in these 1884 Munson bros, advertisement, it could also be used for grinding spices, cement and other materials. Stone Behr mills like this one were used into the 1880s, when the roller mill was developed by Edward p. Allis & Co. subsequently, the roller mill became the predominant method of flour milling and the stone Behr mill lost most of its dominance in the industry.
The Nordayke&Marmon mills had their beginnings during the 1850s, eventually becoming a predominant force in the milling industry. In addition to its large commercial mills and flour milling machinery, Nordyke&Marmon offered its Farm and plantation mill for decades. Built in 14-and 18-inch sizes ,this small mill used a cast-iron housing for the stones; a small 14-inch model could provide sufficient corn meal for several families in a very short time . in 1927, the company was purchased by Allis-Chalmers Manufacturing Co.

Outside of this 1910 advertisement, virtually nothing is known of Richmond city mill works. Apparently, the company had already been in operation for a time; nothing has been found relating to its subsequent activities. The planter's pride mill shown here featured a cast-iron casing, along with a massive cast-iron base plate.

From the 1890s comes this engraving of the monarch mill outfit. At the far left is a com crusher for reducing ear corn to small pieces. The material is conveyed to the stone Behr mill beneath; an elevator takes the ground material to a sacking stand, the company noted that in addition to its utility for grinding livestock feed; the sane mill would make an excellent grade of corn meal or graham flour. Sprout. Waldron co. was primarily involved in making commercial mills.

This well-known manufacturer of grain threshers and steam traction engines also built Stevens French Behr stone feed mills for some years; this one is from the 1890s. The grain left the hopper dropping through the eye of the fast (stationary) stone, making its way between the fast and the runner stones and finally emerging from the periphery as ground meal. An interesting sidelight is that millstones were dressed in many different ways; hundreds of patents were issued on this point.

In 1912, Stover announced its new stone Behr mill. This one was entirely of cast iron. as can be seen harem, the runner(revolving)stone was forced against the stationary stone by an adjustable thrust bearing at the outer end of the shaft. Millers were very careful not to permit the stones to rub against each other. Lest damage result. For reasons unknown, Stover built these mills(grinding mill) for only a short time, probably less than two years.

An 1887 advertisement illustrates the queen of the south mill. As made by straub machinery co., this was a typical vertical design, with the casing being carried by four large posts; the latter terminated as supports for the grain hopper. Patented already in the 1870s, this mill gained a wide reputation in its class.

By 1888, straub was offering the horizontal version of its flour mill. Calling it the "Germ of the south." this one used a cast=iron casing for the grinding stones, as well as a substantial cast-iron base to maintain shaft alignment. its advertising noted that the stones were "of solid French burr." this material was deemed the best for flour grinding and could be found only in France.

grinding mill machine for industrial.
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Grinding Mills(grinding mill)

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