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For example, Hilti manufactures a jackhammer model that has approximately the same impact energy of a 60 lb (27 kg) pneumatic hammer, but the vibration felt by the operator is significantly less (7 m/s 2). Other manufacturers such as Makita, DeWalt and Bosch also offer electric tools with vibration dampening.
The diesel electric locomotives employed by CFR and built by Electroputere Craiova are known as classes 60 to 68 and originally registered under the series 060-DA. They were based on a design created by SLM Winterthur, BBC Baden and Sulzer Winterthur and bears, externally, resemblance to AE 6/6 Swiss electric locomotives. [1]
The GE E60 is a family of six-axle 6,000 hp (4.5 MW) C-C electric locomotives made by GE Transportation Systems (GE) between 1972 and 1983. The E60s were produced in several variants for both freight and passenger use in the United States and Mexico.
In the First World War the Mk I gun could fire the early 60 lb (27.3 kg) 2 c.r.h. shell 10,300 yd (9.4 km), and the later more streamlined 8 c.r.h. shell to 12,300 yards (11,200 m). Weighing 4.4 tonnes , the 60-pounder required a team of 8 horses to tow it, with a maximum of 12 possible in difficult conditions.
The Pancor Corporation Jackhammer is a 12-gauge, blow-forward gas-operated bullpup automatic shotgun designed in 1984 and patented in 1987. Only three working prototypes of the Jackhammer were built. Only three working prototypes of the Jackhammer were built.
A power hammer A blacksmith working with a 50-kilogram (110 lb) power hammer. Power hammers are mechanical forging hammers that use an electrical power source or steam to raise the hammer preparatory to striking, and accelerate it onto the work being hammered. They are also called open die power forging hammers.