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 Junior Instn. of Engrs, -- Jl vol. 39, no. 8, May 1929 pp. 359-378, 9 figs; See also - n 1490, 1491 May 24 31 p 473-474, 497-498)


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    Title :

    Electric lifts


    Additional title:

    Machy. Market


    Contributors:

    Published in:

    Publication date :

    1929


    Size :

    3 pages


    Remarks:

    9 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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