New engine for Cicero (more)
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This from Cicero Assist Fire Chief Rick Moravecek.  

Took delivery of a Pierce PUC engine and it should be in service some time in May.

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Principle of catalytic cracking of waste rubber tires in the process
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The pollution caused by scrap rubber tires is called “black pollution”, and the “black pollution” problem has always been a major problem in the tire industry. It is reported that a waste rubber tire catalytic cracking treatment technology…

Five major drawbacks of vortex pumps
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A. The vortex pump cannot be used to pump more viscous media. As the viscosity of the liquid increases, the pump head and efficiency drop drastically, and the viscosity of the medium is limited to 114 centistokes.

2. The pumped medium is limited to pu…

Industrial profits increased by 53.5% from January to September
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From January to September, the profits of industrial enterprises above designated size in 24 regions of the country[1] were 2,473.7 billion yuan, a year-on-year increase of 53.5%, a decrease of 2.8 percentage points from January to August.

Of the 39 m…

About the knowledge of the swing gate, we should understand
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The swing gate is commonly referred to as flapping gate in the rail transit industry. The shape of the blocker (bump pendulum) is a plane with a certain area, perpendicular to the ground, and it is blocked and released by rotation and oscillation. The material of the blocker is commonly used …

Chicago Still Alarm 12-5-2013
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This from D. Herndobler

On Thursday, December 5th, 2013 at approximately 1645 hours, companies from the 21st Battalion had a Still Alarm at 90th and Bell. Companies on the scene were Engines 121 and 129, Trucks 40 and 50 (spare rig) with Battalion 21. Battali…