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2. Jack (device) - Wikipedia

   en.wikipedia.org/wiki/Jack_(device)

   Hydraulic bottle jack. A bottle jack or whiskey jack [6] is a jack which resembles a bottle in shape, having a cylindrical body and a neck. Within is a vertical lifting ram with a support pad of some kind fixed to the top. The jack may be hydraulic or work by screw action.

3. Jackscrew - Wikipedia

   en.wikipedia.org/wiki/Jackscrew

   The maximum mechanical advantage possible for a hydraulic jack is not limited by the limitations on screw jacks and can be far greater. After World War II, improvements to the grinding of hydraulic rams and the use of O ring seals reduced the price of low-cost hydraulic jacks and they became widespread for use with domestic cars. Screw jacks ...

4. Niagara Falls Hydraulic Power and Manufacturing Company

   en.wikipedia.org/wiki/Niagara_Falls_Hydraulic...

   The "Cliff Electrical Distributing Company," was an electrical corporation organized for the sole purpose of enabling the "Hydraulic Power Company" lawfully to distribute electric power. [11] As of 1914, the main consumers of power from the "Hydraulic Power Company" were: [11] Aluminum Company of America – about 70,000 horsepower

5. Jackhammer - Wikipedia

   en.wikipedia.org/wiki/Jackhammer

   The jackhammer is connected with hydraulic hoses to a portable hydraulic powerpack: either a petrol or diesel engine driving a hydraulic pump; or a mini-excavator or skid-steer via a power take-off driveshaft to the machine's hydraulic system. Hydraulic power sources are more efficient than air compressors, making the kit smaller, cheaper or ...

6. Crane (machine) - Wikipedia

   en.wikipedia.org/wiki/Crane_(machine)

   The success of his hydraulic crane led Armstrong to establish the Elswick works at Newcastle, to produce his hydraulic machinery for cranes and bridges in 1847. His company soon received orders for hydraulic cranes from Edinburgh and Northern Railways and from Liverpool Docks, as well as for hydraulic machinery for dock gates in Grimsby. The ...

7. Portal Bridge - Wikipedia

   en.wikipedia.org/wiki/Portal_Bridge

   It is 961 feet (293 m) long. The average bridge clearance of 20 feet (6.1 m) (depending on the tide) requires it to swing open to allow maritime traffic to pass underneath it. By the 2000s, the Portal Bridge train speeds were limited to 60 miles per hour (97 km/h). Replacement of the bridge is the first phase of the Gateway Project. [4]