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Harold Richardson
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Publication of GB190518142ApublicationCriticalpatent/GB190518142A/en
18,142. Richardson, H. Sept. 7. Winches; balancing- devices. - In spring winding-drums for use in working grabdredgers, the load is suspended from the drum C, which drives through the reducing- gearing a, a<1> a countershaft b, to which is attached one end of a spring d, in such a way that, during lowering of the load, the spring is wound up. In a modification, a double train of wheels is employed, the shaft b being in line with the drum shaft.
GB190518142D1905-09-071905-09-07Improvements in Winding Drums applicable for use in Working Grab-dredgers.
ExpiredGB190518142A
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