Arthur R. Segal, age 101, passed away at 9:50 a.m. Saturday (January 12, 2013) in Memorial Hospital & Health Care Center in Jasper.

He was born June 30, 1911 at Kansas City, Missouri to Henry and Ada (Bennett) Segal. He married Mildred “Millie” Hebrank October 25, 1935 in the Evangelical Church in Highland, Illinois. She preceded him in death March 14, 2011.

After high school, Arthur served his apprenticeship training at the United States Radiator Corporation and then as an engineering draftsman at the Laclede Steel Company at Alton, IL. He saved most of his earning so that he could attend college.

In 1942, Arthur started his own company, North American Products Corporation, designing and manufacturing the first mechanically held, solid carbide blades for the high-speed machining of metals. At the time, the development of the new cutting tool metal known as Tungsten Carbide, was at the leading edge of industrial technology and was of high importance for the nation’s war effort. Arthur worked closely with Phillip McKenna, who had been an associate at Kearney and Trecker, and who later founded the Kennametal Corporation.

After the war, Arthur began experimenting with the design and manufacturing of tools for machining materials other than metals. This resulted in the development of the first Tungsten Carbide circular saw blade, a product which would rapidly replace the use of solid steel blades due to their long production life and increased accuracy. Mr. Segal developed the first carbide tipped saw blades for cutting wood, hard plastics and plastic laminates and he held patents on many of the basic carbide tipped tool designs now commonly used in industrial production.

While the company initially grew on the basis of its innovative tooling designs, North American Products began opening carbide tool sharpening and sales divisions in many stated and eventually, in foreign countries. The company’s first tool sharpening division was located in Jasper, IN in 1957, and the company moved its headquarters and manufacturing facilities to Jasper in 1959.

Along with growing and operating the business, Arthur wrote technical articles for various industrial and scientific publications. He also presented papers and seminars at numerous universities regarding the design, machining and manufacturing of Tungsten Carbide cutting tools.

He served as a director of the Wood Machinery Manufacturing Associations (WMMA), and also as a director for the associations industrial Fair Board. He directed the association’s noise control research program in coordination with Wylie Research Laboratories in Huntsville, AL. Arthur also represented the association in regard to product liability legislation in Washington D.C. In 1966, he was a U.S. representative to the United Nations Technical Industrial Production Conference in Vienna, Austria.

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ForeverMetals.com, the leading retailer of wedding bands online, is proud to inform that they now have a complete line of white tungsten wedding rings both for men and women. Even if tungsten rings are relatively renowned and make up roughly one third of all men’s wedding rings traded in US alone, there are a few inherent issues regarding this superb metal. This metal is inclined to be a little grayer in color, which is far from silver, platinum and palladium when it comes to appearance. There are many clients who wish their rings made from tungsten carbide could have a similar color as platinum and white gold. Now with advances in technology this has been made possible. Soon to be couples are drawn to the stunning white metal appearance of platinum which white tungsten has, according to Forever Metals.

A lot of couples yearn for their engagement ring or wedding band to seem like white gold or platinum. With white tungsten, you can have the lavish appearance of platinum, at a portion of the cost. Unlike the usual way of plating, this extraordinary procedure will not wear down. White Tungsten is an ideal choice for couples seeking the traditional look of precious metals while having the durability of tungsten carbide.

Forever Metals offers one of the largest collections of tungsten carbide rings. At Forever Metals, they strive to give the best service for their customer to make their buying experience informative and hassle free. Along with offering the best products and services, Forever Metals also provides the affordable prices.

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As Asian and Western countries make giant strides in mobile technology, there are a number of African techpreneurs who feel the continent has the potential to make its own original devices. Given the dominance of imported gadgets, the challenges for home-grown devices are real yet innovators still have hope.

Let us ponder this scenario: Apple is a big brand in America, while Samsung and Huawei are highly recognised in their respective continents. In Africa, we are yet to stand tall with devices engineered here for now. But one notable observation is that Africa is a main source of some rare precious minerals that are important in the manufacture of the devices.

The Democratic Republic of Congo alone supplies almost 70 per cent of the world’s tantalum metal which is an ingredient in all phones. The country has substantial reserves of columbite-tantalite or coltan, cassiterite, wolframite and gold. Coltan is the ore from which tantalum is extracted, while cassiterite produces tin.

Tantalum is a vital metal in the manufacture of compact and high performance capacitors found in electronic gadgets like mobile phones, laptops, tablets and gaming consoles.

Wolframite is the metal ore for tungsten used in vibration circuits of mobile phones.

Tin is a major ingredient in solder which is commonly used on electronic circuit boards. Gold is also present in some electronic products.

It is in the DRC that we find one of the up-coming techpreneur with ambitions of putting African home-grown devices on the tech-map. Verone Mankou, a Congolese entrepreneur has smartphones and tablets engineered in Congo. His tech-startup, VMK, boasts of a flagship tablet called Way-C and a smartphone called elikia.

VMK is derived from Vumbuka which is a word in Congo that captures the phrase ‘wake up’. Could it be a wake-up call for Africa to come up with home-grown mobile devices?

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Tungsten is an element. It its pure form, it is a soft light grey or whitish metal. It has a number of practical uses, both in its pure form and as an alloy. However, tungsten is typically not found in pure form; it is instead processed from minerals, usually wolframite or scheelite. Although making a completely positive identification of a mineral is difficult without professional experience, these particular minerals have many properties that anyone can examine to determine whether a specimen is likely one of them.

Instructions

1
Examine the mineral. Wolframite ranges from black or greyish black to brown, is opaque and is slightly metallic. Scheelite is more varied; it can be tan to dark brown, golden to pale yellow, brownish yellow, reddish yellow, greenish, colorless or white. Its crystals can be transparent or opaque, and they have a shiny or glassy appearance.

2
Rub the mineral against a streak plate, a piece of plain white unglazed porcelain. Wolframite leaves a reddish brown color on a streak plate. Scheelite makes a white streak, which may be difficult to see.

3
Scratch the mineral with the steel nail, which has a Mohs hardness of about 5. (The Mohs scale measures the hardness of minerals relative to one another.) Wolframite and sheelite each have a Mohs hardness of 4.5, so the nail will leave a mark on either.

4
Examine the other minerals that may have formed on your specimen. Wolframite often develops with topaz and quartz. Scheelite often develops with tremolite, tourmaline, topaz, vesuvianite, cassiterite, fluorite, diopside and apatite. In addition, wolframite and scheelite are often found together.

5
Measure the crystal's specific gravity -- its weight in comparison with its volume. This measurement can be taken in many ways, but all require special equipment or calculations for accuracy. However, this is a good way to identify minerals. The specific gravity of wolframite is 7.40 grams per cubic centimeter. The specific gravity of scheelite is 6.01 grams per cubic centimeter. If you do not have access to such equipment, heft the sample in your palm. Both minerals should feel fairly heavy for their size.

6
Place a magnet on a mineral thought to be wolframite. Wolframite contains iron, making it slightly metallic.

7
Shine a UV light on a mineral thought to be scheelite. Scheelite fluoresces bright white-blue under a UV light if it is very pure, and creamy yellow if it contains molybdenum.

8
Drip a small amount of diluted hydrochloric acid on the specimen. If it is scheelite, the acid will decompose it into a yellow powder.

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