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Now the notches weren't just a hole that the bar would fit into but rather they were tapered on one side so that when the engine started the bar would be easier to retract. gbritnell
Yes Baring holes. Some of the larger engines had baring engines to turn the engines over.....Worm gear for a 750 HP compound from a steam tug boat. You can just see the swinging bracket at the left end of the engine bed. a worm would be fitted there with a shaft that has a large wrench hex. The bracket also had a curve slot so that it could be swung into engagement with a large worm wheel that clamped to the coupling flange ( 2 halves). Once you swung the gear into place it would also prevent the engine from rotating...which makes working on a engine like this safe....the crankshaft alone weighs 9000 pounds. A simple flange with baring holes can be seen to the right of the Seabury 100 HP triple from a steam yacht.Dave
Quote from: steamer on March 24, 2020, 04:01:31 PMYes Baring holes. Some of the larger engines had baring engines to turn the engines over.....Worm gear for a 750 HP compound from a steam tug boat. You can just see the swinging bracket at the left end of the engine bed. a worm would be fitted there with a shaft that has a large wrench hex. The bracket also had a curve slot so that it could be swung into engagement with a large worm wheel that clamped to the coupling flange ( 2 halves). Once you swung the gear into place it would also prevent the engine from rotating...which makes working on a engine like this safe....the crankshaft alone weighs 9000 pounds. A simple flange with baring holes can be seen to the right of the Seabury 100 HP triple from a steam yacht.DaveThat looks like it was taken just outside the sshipyard buyilding at Mytsic Seaport, right?