Search billions of records on Ancestry.com
   
My MARSH pages Pedigrees ODTs Sources Celebs Annex Gallery
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

My Celebrity Relations

MARSH, Sylvester [1803-1884] -- American inventor (cog railroad)

Relationship to me: 6C4
MARSH family Outline Descent Tree(s) ODT
Contents:

He built the cog railway up New Hampshire's 6288 ft (1916 m) Mt Washington, still in operation today after more than 130 years -- and still an exciting 37° ride1 -- the only steam cog RR still in operation! His patents were used to build cog railways around the world, notably in Switzerland.

The 1861 patent shows a locomotive powered by a central cogwheel gripping a center notched rail. Four outer wheels have neither power or braking ability, but only support and guide the engine. The light engine is geared down to attain the power needed. For safety, multiple braking systems are included.  -30-
 

Chronology

1861/09/10
Patents a cog RR locomotive
1866/08/29
First cog RR (½ mile demonstration track)
1869
Mt Washington Cog RR is first (and still the only) built entirely on trestle
1869/07/03
Mt Washington Cog RR begins operation
1871
First European cog RR on Switzerland's Mt Rigi uses his patents

Selected Works

  • Coffee percolator (reputed, but not patented)
  • Cog RR locomotive (1861 patent #33,255)
  • Lard-rendering device (Patent)
  • Marsh's Caloric Grain Dryers (6 patents)
  • Open rung cog rail (Patent)
  • A revolutionary air brake (Patent)
  • Bookmarks (off-site links)

    Bookmarks:2010-05-31 10:37:21

    Footnotes

    1 A 37° slope is a rise of 3 feet (or meters) in every 5. This can be visualized by using two 3x5 index cards, using one as the slope of 5 inches and the other to measure the rise at one end of 3 inches.
    A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
    image related to subject
    Sylvester Marsh 1803-1884

    Services

    visitors /~dav4is/people/MRSH50.htm
    Uploaded: 2014-09-05 22:37 
    data errors | external links | FAQ | Celebs help
    site help
    Colophon description
    -fin-
    © 1998, 2017
    Roderic A. Davis, 2nd
    All Rights Reserved
    Email: Rod Dav4is
     dav4is@YAHOO.com
    Snail:
     Celebrities, et Cetera
     c/o Rod Davis
     The Manor at Woodside
     168 Academy St. #221
     Poughkeepsie, NY 12601
     USA
    
    Search celebrities pages
    [HOME]
    [INDEX]
    (to this folder)

    [TOP]
    (of this webpage)
    Monitor page
    for changes

    it's private
    powered by
    ChangeDetection