Electric elevators of modern design; winding machine and ropes; location of lift machines; cars; car slings; car safety gear and speed governor; balance weights; landing doors; locks; methods of control operating devices; indicator systems; d.c. controllers; pushbutton controllers; a.c. and two-speed a.c. controllers; micro-controllers; gearless traction and variable voltage control; controllers for lifts in ships. (see also Machy. Market, nos. 1490, 1491 and 1492, May 24, 31 and, June 7, 1929, pp. 473-474, 497-498 and 521-523, 9 figs)


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    Title :

    Electric lifts


    Additional title:

    Junior Instn. Engrs, -- Jl


    Contributors:


    Publication date :

    1929


    Size :

    20 pages


    Remarks:

    9 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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