Archived posting to the Leica Users Group, 2014/02/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The main reason it fell out of favour was the sealing of the vacuum tube in which the piston from the train was sucked along. The tube had flaps made of leather which were sealed (and greased) by tallow (a rendered animal fat). Every rat for miles around went to a massive party on the tallow coated seal and the train kept losing its pulling vacuum. Preventing the rodent parties became a huge overhead, an alternative was desperately needed, so the atmospheric was quietly shelved. Speaking of atmospheric, I watched the first episode of True Detective (it's set in Louisiana), and, Sonny, I don't understand how any of you understand each other. I needed an interpreter! Douglas ----- Original Message ----- From: "Sonny Carter" <sonc.hegr at gmail.com> To: "Leica Users Group" <lug at leica-users.org> Sent: Thursday, February 27, 2014 1:40 PM Subject: Re: [Leica] IMG: Doesn't Look Much.... >I was wondering about the "Atmospheric", so I went to the Wikipedia > article: > > The standard gauge <http://en.wikipedia.org/wiki/Standard_gauge> line was > 9,200 feet (2,800 m) in length with an average uphill gradient of about 1 > in 110. Vacuum power via a 15-inch (380 mm) pipe was used for the ascent > to > Dalkey, speeds of up to 40 mph (64 km/h) being achieved, and the return > journey was by means of gravity. The vacuum tube fell 560 yd (512 m) short > of the Dalkey station, and the train relied on momentum for the last > stretch of the journey. To commence the journey from Kingston the train > had > to be pushed by hand until the piston engaged with the > tube.[2]<http://en.wikipedia.org/wiki/Dalkey_Atmospheric_Railway#cite_note-2>Trains > ran every half-hour between 8:00am and 6:00pm. > > > On Mon, Feb 24, 2014 at 5:15 PM, Douglas Barry <imra at iol.ie> wrote: > >> George, the wall is the original boundary wall of Bray railway station >> which was built in 1854. Its 160th birthday is on the 10th July this >> year. >> Don't whether the wall is actually that old as the line was extended >> southwards to Greystones in 1855, but it is no younger than 1855. So it's >> probably 159 years old, but might be 160... >> >> The original line from Dublin to Dun Laoghaire was the third oldest >> railway in the world (and the first commuter line in the world) when it >> first opened in 1834, and it in turn was extended to Dalkey using the >> tracks of the Dalkey Atmospheric Railway (the first of of its type in the >> world too) and then to Bray over the next twenty years. >> >> Wikipedia has a bit on it. >> >> Things are very old around here - me especially.... >> >> Douglas >> >> >> "George Lottermoser" <george.imagist at icloud.com> wrote >> >> neat cityscape >>> >>> is that stone wall as old as it appears? >>> >>> >> On Feb 24, 2014, at 4:04 PM, Douglas Barry wrote: >>> >>> ... Like Fun. >>>> The back entrance to the Fun Palace Casino looks like a cavernous maw >>>> that swallows a punter's money. >>>> >>>> Bray, Co. Wicklow. >>>> Fuji X100S. >>>> See Large. >>>> >>>> http://gallery.leica-users.org/v/DouglasBray/DoesntLookMuch.jpg.html >>>> >>> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > > -- > Regards, > > Sonny > http://sonc.com/look/ > Natchitoches, Louisiana > 1714 > Oldest Permanent Settlement in the Louisiana Purchase > > USA > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >