| | "Patent Pages" -- The Corkscrews
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| | by Ray Klingensmith
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| |
On May 1, 1883,
Joseph S. Lewis of England was granted a U.S. patent for an insulator with a
screw threaded exterior for the purpose of eliminating the need of a tie wire.
(See patent copy.) instead of the usual tie wire being used, a horseshoe shaped
clip could be attached to the line wire and placed at the top of the insulator.
... [more]
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| | More Telephotos
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| | by Richard A. Peterson
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| |
Enclosed you will find two different photographs that you
can use for Crown Jewels magazine.
1. This insulator is a puzzle to me I will
try and see if I can get information on this one from the San Francisco
Electricity Dept. The base appears to be made of lignum vitae, and the top is a
... [more]
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| | Questions Answered by N. R. Woodward
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| | Author of The Glass Insulator in America and originator of C.D. #'s (Consolidated Design Numbers)
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| |
Allen Klapaska, Hydes, Maryland, writes: I have
come across an unusual CD 102. It is a Brookfield New York. As far as I know,
the CD 102's come in 2 & 3 piece molds. But I have one with a 4 piece mold,
and I have never seen or heard of any. At the left is a drawing of the CD 102 I
... [more]
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| | Porcelain Insulator News
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| | by Jack H. Tod, NIA #13
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| |
Dear Jack:
First, I have a U-208 transposition with an
incuse "LOCKE" marking on the flat crown. Can you give me a rough idea
of the value of it?
Secondly, can you tell me a rough value for a U-184 Harloe
with the 3 embossed patent dates? Also, do you have any idea of how many are in
... [more]
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| | Paul Seiler
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| | by Fritz Kettenburg
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| |
An introduction to the Paul Seiler Electrical Works Catalogue of 1900
states that: "Paul Seiler, of this firm, has been in the electrical
business on this coast since 1867."
The earliest reference I've found to
Paul Seiler working in the electrical business is with the firm of William
... [more]
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| | "Threadless Corner" -- The First Transcontinental Telegraph Line
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| | by Ray Klingensmith
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| |
In the 1840's
the telegraph industry had grown to unbelievable size in the eastern section of
this country. Most major American cities east of the Mississippi were linked
with the "magic wire".
In the late 1840's, with the discovery of gold
in California, there was a massive movement of people to the west coast. With
... [more]
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