Excavator history

We went into Bolton this afternoon to get my reserved library book and some more lateral flow tests.  And had a hot chocolate and half a delicious chocolate cake at café Nero!  

The area along Deansgate, where the old Sweetens bookshop, that disappeared many years ago was, is being demolished and I was pleased with my shot through the barriers! 

These hydraulic excavators were first invented in “1882, built by Sir W. G. Armstrong & Company in England. They realised hydraulic force was a far more efficient source of power for digging and employed it in a groundbreaking design. Used in the construction of Hull docks, the excavator used water in place of modern hydraulic fluid. Although many contest its status as a true hydraulic excavator, the original definition of hydraulic as ‘operated by water’ still holds true. However, it was something of a hybrid, as cables were used to operate the bucket with the cylinder operating multiplying sheaves. Before this, all excavators were cabled and this is the first acknowledged use of a hydraulic excavator in a practical application.”


The history of the excavator  is very interesting.  There were others before the Hydraulic excavator: using steam and cables but before that manual labour was cheap and picks and shovels were used.  The driving force behind the development of excavators was the speed at which railways were built in America.


This is for Mono Monday-inventions hosted by Laurie!  Many thanks Laurie as it’s been a very interesting month! 


And I have added a pink signature for BCAM!  

Please could you click on this link and then on the pink bar: "Click to give - It's free!"  This is to help towards funding mammograms for people who can't afford them and don't have the NHS we have.  We are coming to the end of all this month although you can still continue to click throughout the year!