SPEED-CONE
\spˈiːdkˈə͡ʊn], \spˈiːdkˈəʊn], \s_p_ˈiː_d_k_ˈəʊ_n]\
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(Mech.) A shaft running at a constant speed is enabled to drive a machine at different speeds by means of two sets of pulleys, those in each set being arranged in steps, with diameters so chosen that the same band can work the different pairs of pulleys, so that a small pulley on the shaft drives a large one on the machine, or a large pulley on the shaft drives a small one on the machine ; either set of pulleys is a speed-cone ; called also Speed-pulley.
By Henry Percy Smith
Word of the day
Procollagen Proline Dioxygenase
- mixed-function oxygenase that catalyzes hydroxylation prolyl-glycyl-containing-peptide, usually in protocollagen, hydroxyprolylglycyl-peptide. The enzyme utilizes molecular oxygen with a concomitant oxidative decarboxylation of 2-oxoglutarate to succinate. EC 1.14.11.2.