- Email: [email protected]
Belt-driven deep well pump
430
CURRENT TOPICS
According to the G-E official, the first observations of metallic whiskers were made at the Bell Telephone Laboratories. Telephone relays under test were found to fail in a mysterious manner, and research showed that whiskers of tin had grown and caused a short circuit. Steel in machines and copper in electric motors, like all metals and alloys, are aggregates of crystals, so most problems of metals revert to problems of the component crystals, Dr. Suits pointed out. One of the most important properties of metals and their alloys has to do with strength. H e explained that metallurgists have calculated the theoretical strength of iron crystals to be such that one an inch square should support a million pounds or more. It has been a mystery why the strength of actual crystals is a hundred times or so less than this. Metal parts used in machinery and other equipment similarly fall far short of the strength they might theoretically have. Dr. Suits said that scientists have recently found that crystals previously made, thought to be nearly perfect, actually had atomic irregularities on an atomic scale. These defects caused the weakness. "Now that we have learned to make some really perfect crystals for the first time, we find that they have astounding strength," he said. "They are stronger than any previously known metal or alloy, and actually attain a tensile strength of nearly a million pounds per square inch." Moreover, he added, these tiny perfect crystal wires of pure iron do not appear to rust. Finely divided iron, or fine wires of ordinary iron, rusts
[J. F. I.
almost immediately upon exposure to air. "The same atomic perfection that gives them strength prevents oxidation," he explained. In order to test the strength of these iron whiskers they are viewed under a microscope as they are bent by means of a micromanipulator. This is a device which makes possible small and accurately controlled m o v e m e n t s. From the amount of bending they will withstand, their strength may be calculated.
Belt-Driven Deep Well Pump.-A new pump which can be used on deep wells where normal 60 cycle a-c. electric current is not available, is now being marketed by The F. E. Myers & Bro. Co., Ashland, Ohio. Called the Myers Belt Driven Deep Lift E J E C T O , this pump can be operated by virtually any type of electric motor from 11/_o to 3 hp., or by a gasoline engine. Vertical motors can be mounted on the pump if desired. The new pump can be used on wells where the depth to the low water level is as low as 300 ft. Its maximum capacity is 1150 gal. per hour at 100 ft. depth. The pump, which the manufacturer describes as compact and economical, can be off-set at any convenient location from the well, thus eliminating a well pit. With no rods or line shafting to wear, it is also suitable for crooked wells. Other features of the pump are replaceable bronze wearing ring, a separate bronze vane plate which can be removed for cleaning, and a standardization of parts for all three sizes thus simplifying parts stock.
CURRENT TOPICS
According to the G-E official, the first observations of metallic whiskers were made at the Bell Telephone Laboratories. Telephone relays under test were found to fail in a mysterious manner, and research showed that whiskers of tin had grown and caused a short circuit. Steel in machines and copper in electric motors, like all metals and alloys, are aggregates of crystals, so most problems of metals revert to problems of the component crystals, Dr. Suits pointed out. One of the most important properties of metals and their alloys has to do with strength. H e explained that metallurgists have calculated the theoretical strength of iron crystals to be such that one an inch square should support a million pounds or more. It has been a mystery why the strength of actual crystals is a hundred times or so less than this. Metal parts used in machinery and other equipment similarly fall far short of the strength they might theoretically have. Dr. Suits said that scientists have recently found that crystals previously made, thought to be nearly perfect, actually had atomic irregularities on an atomic scale. These defects caused the weakness. "Now that we have learned to make some really perfect crystals for the first time, we find that they have astounding strength," he said. "They are stronger than any previously known metal or alloy, and actually attain a tensile strength of nearly a million pounds per square inch." Moreover, he added, these tiny perfect crystal wires of pure iron do not appear to rust. Finely divided iron, or fine wires of ordinary iron, rusts
[J. F. I.
almost immediately upon exposure to air. "The same atomic perfection that gives them strength prevents oxidation," he explained. In order to test the strength of these iron whiskers they are viewed under a microscope as they are bent by means of a micromanipulator. This is a device which makes possible small and accurately controlled m o v e m e n t s. From the amount of bending they will withstand, their strength may be calculated.
Belt-Driven Deep Well Pump.-A new pump which can be used on deep wells where normal 60 cycle a-c. electric current is not available, is now being marketed by The F. E. Myers & Bro. Co., Ashland, Ohio. Called the Myers Belt Driven Deep Lift E J E C T O , this pump can be operated by virtually any type of electric motor from 11/_o to 3 hp., or by a gasoline engine. Vertical motors can be mounted on the pump if desired. The new pump can be used on wells where the depth to the low water level is as low as 300 ft. Its maximum capacity is 1150 gal. per hour at 100 ft. depth. The pump, which the manufacturer describes as compact and economical, can be off-set at any convenient location from the well, thus eliminating a well pit. With no rods or line shafting to wear, it is also suitable for crooked wells. Other features of the pump are replaceable bronze wearing ring, a separate bronze vane plate which can be removed for cleaning, and a standardization of parts for all three sizes thus simplifying parts stock.