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...t operation of heavily loaded trains, especially on grades. Even starting and stopping are difficult under such circumstances. ...uilt. The factors which are not so simple to improve on are rail material and wheel or tire material.

...ll aware of the importance of lubrication being furnished to the cylinders and valves of their small locomotives, particularly so when superheated steam i ...ricator is made by placing a small oscillating cylinder inside a container and operating it from some moving part of the engine through a ratchet drive th

...lthough rather clumsy looking, are easy to make and effective in operation and in their position down under the cylinders don't show too plainly anyway. ...hole marked '''X''' doesn't do anything, but you have to go through it to drill to the cylinders.

...re worth. It is interesting to note how closely Van Brocklin's dimensions and mine agree. ...and, for the smaller sizes, it is well to use a larger piece of drill rod and turn down the distance K, or a little more, to dimension J.

...lock. As they are seated a friction force develops along the whole length and diameter of the pin which locks the pin in place. ...be computed by multiplying the nominal length of pin by the factor 0.2083 and subtracting the result form the basic pin diameter.

...s itself to producing a thread right up to a shoulder. Here's my solution and it's not restricted to just valve motion pins. ...of thread desired. This will give you full threads right to the shoulder and insure that the bearing portion of the pin seats tightly against the tapped

...Pressure gauge|pressure gauge]] which scales two or three feet in diameter and a foot or over in thickness. The difficulty lies in the fact that a reliable gauge is essential and that model makers have found by experience that it is difficult to make, or

...as well as the Baltimore & Ohio railroad. He was a Professional Engineer and a superb draftsman. ...0-6-0; a 1 inch scale 4-4-0 and 4-6-0; a British "Single" in 1 inch scale, and various other models.

...[[Model Engineer]] written in 1956. This is by far one of the most complex and, shall I say, a bit hard to understand at times, projects I have found on t ...middle of February 2014. I was starting to model the mechanical lubricator and in doing a little research ran across the IBLS website. I thought you might

...to insure a constant supply of oil to the 3/4 inch diameter piston valves and pistons. However, it can be made as a single cylinder unit for those who l ...mselves pretty well, I believe, but a few tips on making the various parts and assembly might be in order. I'll just mention the points that need some wo

...ch threads allow for smaller size nuts in relation to tube sizes, and taps and dies are easily obtainable. A boiler backhead using these fittings looks e ...ittings will aid in getting straight length. Leave ends of bent tube long and cut off to suit fittings, then silver solder ferrules on, not forgetting th

...nger capable of performing machine work. He has given the FN project to me and I am now in the process of continuing with the build. ...s and some brake parts. Currently those are in a box awaiting my attention and will be presented to you guys when their turn comes up.

...ry often have odd size drivers that are just off "store boughten" castings and we are confronted with one of two choices. Select a near size wheel or bui ...e of evenings that will reward you for time spent in a good looking driver and to scale as well.

...xle boxes and pilot touch frame side pivots make for good tractive effort, and on steel track tests with ball-bearing trolley she will pull 400 pounds, or ...were stopped up with brass plugs. This has made no difference to steaming and gave a better depth of fire, about 1-1/2 inch to top of grate.

...building a [[Building a Kitsap Caboose|Kitsap Live Steamers caboose kit]] and decided to add a fully operational [[Air_brakes#Balanced|balanced air brake This is my first attempt at building operating air brakes, and I am quite pleased with the results. Air brakes will certainly be added t

...ard. Each new part made it more apparent something would have to be done, and soon. ...on plus finding suitable material evolved the hydraulic lift we now have. And it literally almost fell together. Compared to build a locomotive, that is

== Coupler, Chain and Hook Arrangement == [[File:Coupler Safey Chain Drawing cropped.png|thumb|center|600px|Coupler and Safety Chain Arrangement]]

[[File:Tap magic 2.JPG|thumb|right|200px|Typical cutting fluid in convenient size for ...ed during the cutting operation, and extends the life of cutting tools and drill bits.

Small [[Water gauge|water gages]] with 3/16 inch and 1/4 inch [[O.D.]] glass tubes as ordinarily used to maintain close to scale ...uently as the water gage itself and as they usually make a mess of the cab and boiler head, they should discharge into a trough piped to the outside.

With the angle cock to the engine open and the last angle cock in the train closed this provides the sealed train line ...ens to be 2psi". So in this case the front of the cylinder has 38psi on it and the back has 40 psi. This in combination with the fact that the front side