Bill Hill Posted July 30, 2021 Share #1 Posted July 30, 2021 When did internally strapped blocks come into use in the US? Quote Link to comment Share on other sites More sharing options...
wefalck Posted August 9, 2021 Share #2 Posted August 9, 2021 I gather, such questions are difficult to answer, which is why no-one chipped in so far. Internally strapped blocks require the manufacture of rolled iron-bars and the possibility to drill accurate and matched holes for the axle. This kind of manufacturing technology only became available around the second quarter of the 19th century. That should give you a time frame. This kind of marine technology diffused quickly around the world and was adopted, where the respective manufacturing technology was available together with the necessary raw materials. mtaylor, Roger Pellett, allanyed and 3 others 6 Quote wefalck panta rhei - Everything is in flux Link to comment Share on other sites More sharing options...
BANYAN Posted August 10, 2021 Share #3 Posted August 10, 2021 These were specified in the Contract for the building of HMCSS Victoria (1855) - so in use by then - Wefalck has probably nailed the possible date range. cheers Pat mtaylor 1 Quote If at first you do not suceed, try, and then try again!Current build: HMCSS Victoria (Scratch) Next build: HMAS Vampire (3D printed resin, scratch 1:350) Built: Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64) Link to comment Share on other sites More sharing options...
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