Subject: Early engineers
From: paul lamar
Date: 10/15/2016, 8:31 AM
To: A10-Me-Earthlink



snips..............

It is mostly an elevator math problem dating
  back to the days of Watt and horses lifting  water out of mines.

  Paul Lamar

Horses lifting water out of mines????

Say Watt??????

Is this a case of mine over matter??????
john dinkel


"While Watt came up with the exact measurement of what would become
“horsepower,” he was not the first to propose the idea of equating a
steam engine’s power to a horse’s. The first documented instance of this
was suggested by British inventor Thomas Savery who wrote the following
in a letter in 1702:"

"So that an engine which will raise as much water as two horses, working
together at one time in such a work, can do, and for which there must be
constantly kept ten or twelve horses for doing the same. Then I say,
such an engine may be made large enough to do the work required in
employing eight, ten, fifteen, or twenty horses to be constantly
maintained and kept for doing such a work…"

"A few Savery engines were tried in mines, an unsuccessful attempt being
made to use one to clear water from a pool called Broad Waters in
Wednesbury  (then in Staffordshire)  and nearby coal mines."


Paul Lamar

A little bit of the subject, but talking about hp to pump water take a look
at this.

https://en.wikipedia.org/wiki/Laxey_Wheel

I used [to] ride past this waterwheel when visiting the Isle of Man for
the TT, and Manx races.

Andrew Cambell


"The Laxey Wheel (also known as Lady Isabella) is a large waterwheel
built into the hillside above the village of Laxey  in the Isle of Man.
Designed by Robert Casement, the wheel has a 72-foot-6-inch (22.1 m)
diameter, is 6 feet (1.83 m) wide and revolves at approximately three
revolutions per minute."

"It was built in 1854 to pump water from the mine shafts and named "Lady
Isabella" after the wife of Lieutenant Governor Charles Hope , who was
the island's governor  at that time."

"The Laxey Wheel is the largest working waterwheel  in the world. The
wheel was used to pump water from the Glen Mooar part of the ‘Great
Laxey Mines’ industrial complex."

Made out of wood is surprising. Quite an invention.

It is amazing how they understood the physics long before they had good
material to make it out of.

Didn't the Norton rotary dominate this race?

------------------------------------------

Wow! Look at this. This is my 2016 Fiat Ducatto on the Isle of Mann.
Somebody painted signs all over it :-)

Paul Lamar

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