Hitachi DH28PFY SDS-Plus Rotary Hammer | High Quality Bronze Safety Valve

For fast and efficient drilling, the combination hammer puts out 19.4 joules of energy and 290 rpm using a 60-volt/12 amp-hour battery and brushless motor. Seven speed selections for drilling and chipping help tailor the force of the machine to the material at hand.

GM kicked out a press release about a “Helinoid” (hellically-wound solenoid) -controlled valve train in the late 70s or early 80s. I think Popular Science might have run it in the back pages where they pretty much just reprinted press releases back then. A few minutes of googling and it seems it may have been developed at Lotus (which was somehow tied up with the General around then). http://www.eng-tips.com/viewthread.cfm?qid=128000

“We think if we play well, we have a chance,” Gavio said. “Who said we can’t win another game, or two games, or three? To do that, we’ve just got to play well.”

Wyoming Valley West’s two-times state qualifier David Krokowski finished with 142 career victories, which is second on the Spartan’s all-time list. Bob Long, Lake-Lehman’s two-time graduating state qualifier, concluded his career with 117 wins.

The idea of a camless engine has been around forever and the big issue has always been finding an actuator system that is at least as reliable as cams, and reasonably simple. The former has kept solenoids at bay, the later variable hydraulic systems. While things are looking up, it may be too late, as indeed the future is likely to belong to electrics, for passenger vehicles at least.

The winner advances to Friday’s quarterfinals against the winner of the game between D12 champion Archbishop Wood (17-8) and D1 third seed Penncrest (23-7).

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A playful group of otters has been spotted downtown, hanging out near the Milwaukee Institute of Art and Design. The semi-aquatic critters were captured on video recently playing along the Milwaukee River. It’s the first documented otter sighting in the downtown area, according to the state Department of Natural Resources. “Recent habitat restoration efforts by a wide variety of partners in Milwaukee County have resulted in increased water quality and increased habitat for fish, frogs and crayfish, all of which are food sources for otter,” the DNR said. Otters are semi-aquatic mammals with unique adaptations for life on the water. They have webbed toes and valves in their noses and ears that close when under water.

There is a disconnect between fire officers who are primarily involved in firefighting and emergency medical services (EMS) and officers in fire prevention, whose job it is to inspect building fire protection systems. A consequence of this disconnect is that fire suppression officers tend to know very little about the design and function of building systems, such as heating, ventilation, and air-conditioning (HVAC), smoke control, and alarm systems; sprinklers; and standpipes. This article examines the reasons fire officers in Operations, those responding to emergency calls, must have a thorough knowledge of building systems. It also examines ways fire departments can gain the knowledge to train their personnel by reaching out to their Fire Prevention Bureau, Building Department, and fire protection system contractors.

(8) Two three-inch hoselines supply a sprinkler system’s FDC. One of the first actions firefighters should take is to pressurize the FDC. This will give the sprinklers their best shot at controlling the fire before firefighters gain entry and control the fire with hoselines. [Photo courtesy of the Miami-Dade (FL) Fire/Rescue Department.]

Mark Bavaro of Danvers remains just one of two North Shore athletes featured on the cover of Sports Illustrated — in his case, on the magazine’s 1987 NFL Preview issue.  

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