Jan-Eric Nyström's 1:8 scale Baldwin 4-4-0 #3003 The 3003 Project recreates an engine used near his home in Helsinki, Finland.
This Live Steam model was built entirely from scratch using drawings in his national archives.
Not quite a 'how to' since many of his projects are unsafe like building a homemade foundry to cast the wheels from his handmade forms, this site details many of the processes he used to fabricate parts of his working model.
The movie he made (right) is an underside view of the eccentric gear that connects to the Johnson bar in the cab and controls the valve timing from full compression forward, through expansion forward, neutral, expansion reverse, and full compression reverse.
The large brass spring housing attached to the frame (top) helps torque the rod that lifts the adjustible Stephenson valve gear links up and down in the rockers relieving the strain of the engineer adjusting the Johnson bar in the cab.
When that control is forward the gear moves up in the rockers and the valves above the cylinders allow steam into and out of the front and back of each cylinder, pressing the pistons in the right order to move forward or backward.
Driven by steam, the piston in the cylinder pushes and pulls the piston rod connected to the drive wheels, (not seen in movie above.) The wheels turn the axle and eccentric cams.
You can see that attached to the axle inside the frame are four large offset cams, or eccentrics, named because their centers are offset of the axle by 90 degrees of the drive pin.
Wrapped around each eccentric is a strap and rod leading left to the tops and bottoms of each rocker.
When the wheel turns the rockers wiggle back and forth, more, or to a greater degree at their tops and bottoms.
The valve tie rods connect at the left onto the lever mounted through the frame.
The movie above demonstrates inside valve gear. Below is an outside the frame type of valve gear: Walschaerts. Walschaerts also accomplishes tapping 90° rotation from the position of the driver wheel's drive pin, but with less friction.
The Johnson bar acts similarly though. The position of the wheels tilt the rockers to and fro, the Johnson bar lifts the valve rod to the forward or reverse valve timing positon in the rockers, and steam is delivered to and exhausted from the cylinder in the correct order.
CRIB JIG
The Jig Crib Jig is a bawdy ribald reel of a troubled tool room attendant.
This song I arranged is loosely based upon a faded, manually typed sheet titled "TROUBLED" which is located in the display case at the Travel Town railroad museum, in Griffith Park, California.
5202 Zoo Drive, East Entrance, Los Angeles, CA 90027 in North Griffith Park, near Glendale and LA Zoo 134 freeway, exit Forest Lawn, 1/2 mile east of Travel Town
Open to the public from 10:00 a.m. to 3:00 p.m.
only on the Third Sunday of each month
Message-ID: <39594582.B1FFFE5@TheOffice.net>
Date: Wed, 28 Jun 2004 01:23:31 +0100
From: Disney Wizard
Organization: Practically perfect in every way.
http://disneywizard.angelfire.com
Replyto: disneywizardFANTASMICtheOffice.net
Newsgroups: alt.disney.disneyland
Subject: [TR] Carolwood Pacific HS 6/17 trip report.
This is a slightly belated trip report to the Carolwood
Pacific Historical Society (CPHS) event viewing Walt's Barn
on June 17. http://www.carolwood.com
The miniature red barn has been rescued from demolition
during a total rebuild of the original property and is now
located on the property of The Los Angeles Live Steamers
(LALS), 5202 Zoo Dr., 1/4 mile East of Travel Town in
Griffith Park, nearest intersection is Forest Lawn Dr. and
the 134 (California State Route 134), a private club on
public property. Because of the public/private arrangement
the LALS must open it's doors to the public. This occurs at
the public entrance (west end) of the club on Sunday's 10:30
a.m. to 3 p.m. sharp, and the first train carries guests at
about 11 a.m. (periodically closed for regional
conventions.) I suggest that it is the best miniature
railroad in existence (partly due to CPHS), and best of all
- it's free (donations accepted, if you like the journey put
in a dollar, if you didn't put in a five or a ten, 100% goes
to making the club a better place.) C'mon in, have a seat,
listen to the safety spiel and enjoy the scenic adventure.
Enough about the location.
On the East side of 5202 Zoo Drive is the service entrance
of LALS, 1/2 mile East of Travel Town, and on the third
Sunday of each month the pedestrian gate is opened to view
Walt's Carolwood Car barn, again from 10 a.m. to 3 p.m. and
again donations are accepted, if you like the journey into
the prologue of Disneyland put in a dollar and if you didn't
put in a five or a ten because 150% (by matching funds
and/or volunteer sweat) goes to making the club a better
place, there are no administrative fees and it is staffed
entirely by volunteers. The volunteers are friendly and
helpful and will temporarily hand you a guest identification
badge. As they escort you into the viewing compound
(delimited by orange cones and safety tape) they may remind
you to stay only within the orange compound, step across
tracks not onto them, to please not touch artifacts (the
excitement builds... ~Walt touched this!~) please sign the
guest book, and feel free to ask questions - the docents
will track down the right answer, and of course, most
importantly, - enjoy yourself!
I was incredibly lucky to have been invited to attend the
docent orientation, which was conducted by the venerable
Michael Broggie, author and CPHS founding chairman. The
training started with the landscaping (which included the
citrus tree,) architectural features and alignment of the
structure, it's history, cost, and method of acquisition.
About 80 percent of the structure is original, with the
overbuilt craftsman frame entirely intact. It was fashioned
after the barn in Marcelline, Mo. in Walt's boyhood
memory. Moving inside Michael pointed out each exhibit and
described it's significance.
Ah, the treasures! What splendid surprises this museum
holds starting with the wooden wall phone with magneto crank
and butterstamp receiver from whence the term 'hang up the
phone' springs. And surprises they remain locked just under
my mind's surface until a later trip report. This
installment is more about the Society.
Membership is a paltry $24 due January and is prorated one
dollar less each month beginning in February. Quoting from
the application, "As member benefits we occasionally and
informally meet to trade fables, lore and collectibles of
rail and Disney origin, or to attend important member-only
events and activities. We eschew regular meetings due to
the high quotient of boredom they generally induce.
"An occasional newsletter, the _Carolwood_Chronicle_,
carries event information and pertinent articles and
stories. Members also receive a handsome membership
certificate, a membership ID card and our exclusive full
color lapel pin. Optional name badges are available, which
are made by Disney's badge supplier. Members receive a
discount on CPHS merchandise and exclusive invitations to
backstage events, celebrations, winery tours, et cetera."
I eschew obfuscation (and hate filibustering while I'm
at it,) but I'm good at it. The folks at Retlaw
Enterprises, Inc. that printed the brochure/application
(c)1995 state their purpose clearly and concisely "...The
Society is active in the preservation of Walt's Red Barn at
the LA Live Steamers area of Griffith Park. We support the
mission to maintain Walt's steam railroad at Disneyland, and
railroad safety information directed toward children." I
was surprised at the great number and high quality of the
exhibits in such a short period of time since my first
private viewing.
"If Walt's personal history and avid interest in
railroading are interesting to you, may we invite you to
apply for membership in the Society by returning the
attached application, or visit the CPHS Web site:
http://www.carolwood.com for more information. Thank You."
Applications are available in the barn or at the gate during
operating hours as well as from:
The Carolwood Pacific Historical Society
1032 Amberton Lane
Thousand Oaks, CA 91320-3514
I see plenty of reasons why someone would become a member
at long distance, (all the cool stuff and a convenient
excuse not to volunteer, among them.) Although if you find
yourself at the site on the third Sunday of each month, take
the LALS railway journey as well as the self guided tour of
Walt's Barn. Just remember that even though you are inside
the fence, you will have to walk or roll all the way around
the perimeter (believe me the street side is much safer and
easier too) from the separate CPHS event to the LALS queue
and vice versa. Still, you could find it more convenient to
acquire a membership to both LALS and CPHS.
I've been bitten by the Railway bug since a picnic near a
gigantic black and silver wall of steam locomotive in Lomita
with my dad before I can remember and have incurable RailFan
fever since, but I sure have a swell head since my visit to
CPHS. Perchance we'll meet there soon, some sunny day.
===================
Legal stuff: This article represents my experience with CPHS
and not the views of my employer or other entity. No
monetary gain was received for this article and it remains
under copyright (c)2004 The Wizard of Pinball. Limited
reproduction rights permission is expressly offered to CPHS,
LaughingPlace.com and to the Disney Information Guide under
the restriction that no monitory gain comes from its use.
==================
Hilarious stuff:
To view the Walt Witch Project, visit:
http://criticboy.com/1999/waltwitchproject.htm
Carolwood Pacific
The Wizard of Indiana Jones
