Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books 1 - 10 of 11 on The copper wire may be built into the wall to prevent theft, but should be connected....  
" The copper wire may be built into the wall to prevent theft, but should be connected to any outside metal, such as lead or zinc on the roof, and to metal rainwater pipes. In the case of a powder-mill it might be advisable to make the network closer by... "
The Applications of Physical Forces - Page 542
by Amédée Guillemin - 1877 - 741 pages
Full view - About this book

The Meteorological Magazine, Volumes 11-12

Meteorology - 1876
...then it would be necessary to have it connected with some metal, such as lead or zinc, on the roof. In the case of a powder-mill, it might be advisable...to make the network closer by carrying one or two rods over the roof and down the walls to that at the foundation. If there were water or gas pipes entering...
Full view - About this book

The Journal of Science: And Annals of Astronomy, Biology, Geology ..., Volume 13

James Samuelson, William Crookes - Science - 1876
...and gables, and along the ridges. The copper wires might be built into the walls to prevent theft. In the case of a powder-mill, it might be advisable to make the network closer by carrying wires over the walls. It was advisable not to erect a tall condactor with a sharp point in order to...
Full view - About this book

The Year-book of Facts in Science and Art

Science - 1877
...should be connected to any outside metal, such as lead or zinc on the roof, and to metal rainwater pipes. In the case of a powder-mill it might be advisable...are water or gas-pipes which enter the building from without, these must be connected with the system of conducting-wires, but if there are no such metallic...
Full view - About this book

The Popular Science Monthly, Volume 10

Science - 1877
...should be connected to any outside metal, such as lead or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill it might be advisable...the wire at the foundation. If there are water or gas pipes which enter the • building from without, these must be connected with the system of conducting-wires,...
Full view - About this book

Report of the Annual Meeting, Volume 46

British Association for the Advancement of Science - Science - 1877
...should be connected to any outside metal, such as lead or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill, it might be advisable...or two additional wires over the roof and down the Avails to the wire ut the foundation. If there are water- or gas-pipes which enter the building from...
Full view - About this book

Van Nostrand's Eclectic Engineering Magazine, Volume 16

Engineering - 1877
...In the case of a powder mill, it might be advisable to make the network closer, carrying one or two wires over the roof and down the walls to the wire at the foundation. If there were water or gas pipes entering the building from without, these must be connected with the system...
Full view - About this book

Lightning Conductors: Their History, Nature, and Mode of Application

Richard Anderson (F.C.S.) - Lightning conductors - 1880 - 256 pages
...ARRANGEMENT OF PROFESSOR CLERK MAXWELL'S LIGHTNING CONDUCTORS. or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill, it might be advisable...wires over the roof and down the walls to the wire of the foundation. If there are water or gas-pipes which enter the building from without, these must...
Full view - About this book

Lightning Rod Conference: Report of the Delegates from the Following ...

George James Symons - Lightning conductors - 1882 - 280 pages
...should be connected to any outside metal, such as lead or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill, it might be advisable...water- or gas-pipes which enter the building from without, these must be connected with the system of conducting-wires ; but if there are no such metallic...
Full view - About this book

Lightning Rod Conference: Report of the Delegates from the Following ...

George James Symons - Lightning conductors - 1882 - 280 pages
...should be connected to any outside metal, such as lead or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill, it might be advisable...water- or gas-pipes which enter the building from without, these must be connected with the system of conducting-wires ; but if there are no such metallic...
Full view - About this book

Lightning Rod Conference: Report of the Delegates from the Following ...

George James Symons - Lightning conductors - 1882 - 280 pages
...lead or zinc on the roof, and to metal rain-water pipes. In the case of a powder-mill, it might he advisable to make the network closer by carrying one...water- or gas-pipes which enter the building from without, these must be connected with the system of conducting-wires ; but if there are no such metallic...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download PDF