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Work and Events / Re: Engine House - Official Work Thread
« on: October 25, 2022, 10:09:46 AM »
Are the Smoke Jacks going to be ventilating or non-ventilating? See attached jpg.
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Work and Events / Re: Engine House - Official Work Thread
« on: October 09, 2021, 05:21:12 PM »
I do not know what you may do, but the examples of roundhouses I have knowledge of had Whitewashed Interior Walls which included the roof framing and underside of the roof. Probably to assist in lighting in an era where electrical lighting was still underwhelming.
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Work and Events / Re: Engine House - Official Work Thread
« on: March 25, 2021, 11:42:33 PM »
A Pole is a customary unit defined as 16 1/2 US survey feet, equal to exactly 1/320 of a surveyor's mile, or a quarter of a surveyor's chain, and is approximately 5.0292 meters. The rod is useful as a unit of length because whole number multiples of it can form one acre of square measure.
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Work and Events / Re: WW&F No. 11 - Official Work Thread
« on: January 16, 2021, 02:54:56 PM »
I was not aware of that method. It was common practice to use tapered bolts to connect locomotive frame members in the first half of the 20th Century. The only difference from your planned method is the use of tapered bolts (after reaming the holes) instead of straight bolts. As it was explained to me by a master machinist, as the bolts are tightened they stretch and elongate and the interference is reduced or eliminated. Tapered bolts reduce or eliminate that issue and that is why they were most often used instead of straight bolts.
One cannot draw them out the wrong way by cutting off the heads though.
One cannot draw them out the wrong way by cutting off the heads though.
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Work and Events / Re: WW&F No. 11 - Official Work Thread
« on: January 16, 2021, 10:48:03 AM »
When you use the term "fitted bolts", do you mean "tapered bolts"? If so, are you going with the traditional railroad taper of 1/16" per foot or Morse Taper. The original railroad taper reamers are hard to find and cost makes them difficult to recreate.
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Work and Events / Re: Coach 9 - Official Work Thread
« on: November 27, 2020, 05:42:03 PM »
Now the WW&F needs to start planning to frame another Coach for display without the sheathing so that visitors can see the expertise and craftmanship that went into late 19th and early 20th century passenger cars. That would fascinate almost all visitors (except those under 4 or 5).
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Work and Events / Re: Roundhouse - Official Work Thread
« on: May 09, 2020, 10:02:47 AM »
Consider this scenario: A dead locomotive moved onto the turntable by a second locomotive. Moving it into the roundhouse over the rail gap between the turntable and the roundhouse lead with leverage limited by the turntable bracing. As time goes by the settling and warping of the turntable may make that a issue even if you get it perfect at first.
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Work and Events / Re: Roundhouse - Official Work Thread
« on: May 07, 2020, 03:08:21 PM »
It is used a pulley system to move a dead engine without resorting to using another engine as the power source especially when repositioning the engine during maintenance.
Why in this case it it positioned off center I do not know.
Why in this case it it positioned off center I do not know.
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Work and Events / Re: Roundhouse - Official Work Thread
« on: May 06, 2020, 10:17:53 AM »
I forgot one thing which might also be useful. The Pulley Block. See the attached drawing details from a standard gauge roundhouse.
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Work and Events / Re: Roundhouse - Official Work Thread
« on: April 25, 2020, 09:11:47 PM »
A couple of notes on roundhouse construction.
1) Typically the center of the rear wall panels were designed to "Knock Out" in sufficient width so that only a hole the width of a locomotive was opened and the whole rear wall of that bay was not required to be rebuilt. The walls were permanent but allowance was made for Murphy's Law.
2. Once the railroads began replacing cinder/stone floors with concrete, an "over run pit" was added just at the end of track to drop the front truck/axle. The pit was covered with wood flooring so that was not open but the weight of the locomotive front truck/axle would break the flooring and drop the front truck in an over run situation.
Just a couple of design notes which although construction is not imminent and not Maine 2' gauge prototype, might want to be considered when the time comes.
1) Typically the center of the rear wall panels were designed to "Knock Out" in sufficient width so that only a hole the width of a locomotive was opened and the whole rear wall of that bay was not required to be rebuilt. The walls were permanent but allowance was made for Murphy's Law.
2. Once the railroads began replacing cinder/stone floors with concrete, an "over run pit" was added just at the end of track to drop the front truck/axle. The pit was covered with wood flooring so that was not open but the weight of the locomotive front truck/axle would break the flooring and drop the front truck in an over run situation.
Just a couple of design notes which although construction is not imminent and not Maine 2' gauge prototype, might want to be considered when the time comes.
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