60-ton steam shovel trenching for the Catskill Aqueduct. Ulster County, New York. 1909.
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60-ton steam shovel trenching for the Catskill Aqueduct. Ulster County, New York. 1909.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...w_fullsize.jpg
New plans added on 11/20: Click here for 2,589 plans for homemade tools.
Frank S (Oct 18, 2018), PJs (Oct 21, 2018), rossbotics (Oct 31, 2018), Seedtick (Oct 18, 2018)
rossbotics (Oct 31, 2018)
London policeman directs traffic in the fog, aided by a gas-fueled torchlight that can fold up and be stored in a box in the street.
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New plans added on 11/20: Click here for 2,589 plans for homemade tools.
Andyt (Oct 20, 2018), Beserkleyboy (Oct 20, 2018), PJs (Oct 21, 2018), ranald (Oct 20, 2018), rossbotics (Oct 31, 2018), Seedtick (Oct 19, 2018)
Beserkleyboy (Oct 20, 2018)
Ranald, I could be mistaken, but my bet is those endgrain timber cobbles were Australian Jarrah, 'cause the Poms used Jarrah for their railway sleepers. Yes they do last extremely well due to very high tanin content and extreme density and hardness. Don't have the link handy, but search ' wood database' for some very comprehensive info of woods of the world. Cheers
Jim in (not at all) Sunny South Coast NSW
ranald (Oct 20, 2018)
yeah, jarrah and yellow stringy bark don't suffer from much of natures extremes. there is one other cost effective species used but cant remember. When I had my srtuctural landscape licence I used to use the same as the cow cockies=yellow stringybark for posts : the rails were generally treated 100 by 32 pine as they were light enough to easily manage & with 3 rails were extremely strong once pailings were attached. Some parts of SW tassie they use saffafras for firewood. Go figure! excuse pun.
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