Leather disc from Brotherhood flexible coupling
Leather disc forming part of a Flexible coupling by Peter Brotherhood.
A disc of leather or other flexible material is clamped at its outer edge by a ring onto a flange which is keyed to a shaft. It is similarly secured at its centre to a flange keyed to the other shaft. This example is bored to key a 2" diameter shaft to a 2 1/4" diam. shaft. This particular leather disc was in use for 12 months in 1883 /1884 for transmitting about 40 h.p. @ 80 r.p.m.
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