robertstawell

17 photos tagged robertstawell, from 1 member of Flickr Commons.

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1900
2021

 

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Double diaphragm, double diaphragm

  • 12 older comments, and then…
  • National Library of Ireland on The Commons said:
    We will award (at our own expense), half a dozen (virtual) sticky buns to the first person who tells us what exactly the Type ZW1 does and what is the application that the Commissioners of Irish Lights may have put it to?
  • Suck Diesel said:
    “AI Overview
    The images depict a double diaphragm submarine emitter, labeled as Type ZW1, with a sound output of 250 watts. Figure 31 shows a diagram of the emitter, highlighting its internal components marked A and B. Figure 32 is a photograph of the emitter itself.”
  • Suck Diesel said:
    Wild guess, is this attached to a ship to identify itself to a submarine that it caries medical or other non hostile supplies?
  • National Library of Ireland on The Commons said:
    Suck Diesel Plausible, but I would need some evidence.
  • Suck Diesel said:
    Of course, ‘submarine’ just means underwater, not necessarily a U-boat.
    I don’t think that Irish Lights has anything to do with U-boats so this device is used to emit a sound underwater, but purpose unknown

Is it Derek on the derrick, or Windy Wendy on the windlass?

  • 12 older comments, and then…
  • Foxglove said:
    with this they could catch a really really big fish... I have been looking at yesterday's photo, the sharpness, clarity of the image is incredible - the original negative, pre print pre scan must be amazing
  • beachcomber australia said:
    Looking SE to get those mountains in the background. Google 3D satellite - www.google.com/maps/place//@54.069183,-10.324061,140a,35y... Wiki lists more than its fair share of drama - en.wikipedia.org/wiki/Blackrock_Island,_County_Mayo
  • beachcomber australia said:
    There are a couple of other photos showing the derrick and "N.E. landing place". The second one has a June 1910 date - catalogue.nli.ie/Record/vtls000741094 catalogue.nli.ie/Record/vtls000740290
  • Niall McAuley said:
    3 Keepers in the 1901 census, John N. Moore with Alexander Murray and John J. Gillispie assisting. All relatively young men, no wives or children on this remote posting. Moore's wife Marie Anne and their 6 children were in a house near the lighthouse at Blacksod Point on the mainland.
  • Niall McAuley said:
    I don't see anything at buildingsofireland/NIAH, but the DIA says the lighthouse is from 1864.

To shine a light in the darkness

  • 27 older comments, and then…
  • beachcomber australia said:
    A lot of history here - www.irishlights.ie/tourism/our-lighthouses/inishtearaght....
    This may help with dating -
    " ... An aerial hoist on the rock over the south landing was erected during 1906-07. Incandescent apparatus using vaporised paraffin burnt in a mantle replaced the multi-wick oil burner in March 1909.
    ... "
  • National Library of Ireland on The Commons said:
    beachcomber australia Only mention of a hoist, so 1906-1907 looks good, thank you.
  • beachcomber australia said:
    It looks like a fantastic but inhospitable place. In 2015 via William Glasgow Howe
    Click through to the large size to see the incline and platforms
  • Suck Diesel said:
    “Inishtearaght (Inis Tiaracht) is one of the Blasket Islands and is probably the only Irish lighthouse that ordinary Joe Soaps like you and me will never get a glimpse of. This is a shame because it is one of the great lighthouses of the south-west of Ireland. But alas, it is a long way out, the lighthouse is on the far side of the island and no boats go out that far.
    It is of course, Ireland's most westerly lighthouse”

    irishlighthouses.blogspot.com/search?q=Inish+tearaght
  • Suck Diesel said:

    It’s remote!