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Title: |
1905 Article-John Pickles & Son-General Woodworker |
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Source: |
Timber & Woodworking Machinery, Special Issue, 15 Mar 1905 |
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Insert Date: |
12/20/2016 9:51:20 PM |
Fig. l2 represents an electrically-driven general woodworker by Pickles & Son, Hebden Bridge, Yorkshire.
This machine is adapted for sawing, planing, tonguing, grooving, tenoning, boring, slot-mortising, etc. The motor employed is of the Langdon-Davies single phase alternating current type. It is claimed for this motor that it is self-starting without taking a current larger than that taken when running at full load, and they are so wound that the full current cannot be exceeded at starting. The starting is effected by a two-way switch and resistance, no condenser or slip rings being used.
These motors are of simple construction, having no brushes, commutators, or collecting rings, and the whole of the circuits in the motor through which the current passes being permanently closed, there is no sparking, which is often a source of considerable danger in sawmills. |
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1905 John Pickles & Son-General Woodworker
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