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Richard, They built/assembled the engine in a 6-7 week time period from what I can find and then installed it in the partially built hull on December 16, 1861 and the top deck with turret and cannons installed in the following 6 weeks before launching at the end of January 1862 Rich

Two suggestions.. 1. you want speed ? here is the fastest, but not the most accurate...maybe ??? We did this at work ( in the Die shop) on our Bridgeports for fast turnaround of angled milling We had a round plate 7-8" in Diameter and maybe 3/4" thick with a center spigot 7/8 inch diameter and...

You can see the chests in Marks post # 5 The main steam valve rides on the valve face of the Cylinder ( 3 port slots shown) and that is in his first picture Then in the Second picture you can see the Main Steam Chest that covers the main valve and its top has 2 slots for the Cutoff valve ...

OK, Lets talk about cutoffs. There are several types (3 ? ) , there is a Riding Cutoff where the Cutoff valve directly rides on top of the main valve. This type generally allows various amounts of steam admission and in some cases has a governor controlling the steam feed .This is a variable...

Yes, The Cutoff function was only used in forward motion. when the engine was reversed, the cutoff bypass valve would be opened and that effectively meant the cutoff eccentrics and cutoff valve were inoperative. So at the 1 minute mark, the main eccentrics are being rotated 180 degrees for...

No governor used on Monitor, the 9 foot propeller kept the RPM's down , really the engine room staff were the governors :) The Grate Valve in the main steam line was the Throttle Valve for the engine. Coal was a very expensive fuel and conservation of fuel was paramount to marine operations...

I have done a study of bolts in connection with my Monitor research. Unfortunately the real expert I found ( Mel Kirsner) has passed on and his Museum burned down years ago. Standard Nut Donates Items to Museum | Global Fastener News. He called it "Mell's Nut house" You have to be careful...

The Centennial Exhibition was about the accomplishments of the USA in the first hundred years ( thus 1776-1876) and was a massive display of technological developments . They painted a portrait of about 56 (!) Inventors -living and dead- who made America great and they did not include john...

Yes Richard there is a book. you can find the digital version here https://archive.org/details/contributionsce00eric/page/n39/mode/2up It is sort of a autobiography of his accomplishments I have a thousand comments about John Ericsson but am tied up now, so will respond more comprehensively...

Yes, It is a rare engine of sorts (for a trunk) and unique and I cannot find any other engines built like Ericsson's design- It is actually a "Half Trunk" since it is only on one side of the piston and is unlike many other half trunks, which are usually oscillating engines. Monitor was the...

Here is an example of my work. I spent maybe 5-6 weeks on this drawing alone and from that I will show you what that means Now I only had a 5 x 7 book Zeroxed print to work with , but the Digital highway shows it full size and much greater detail but look at it anyway...

Thanks to all for the kind comments Green twin has been very accurate in his responses and you might say he has saved me many keystrokes : ) Getting accurate information on the Monitor has now amounted to 30 years of research and let me say, seeing a drawing does not make it right. I found...

Ajoeiam and Ken , well, there are several things to do to get plans There is a very nice set in Popular Mechanics magazine February 1969. You can usually get a copy from the local library or find a digitized version on the net I think These AND MINE are for a NON-Firing models ! The Cannon I...

I will have to look Ken , it's been a long time I'll try to post an answer ASAP Rich

Mark , did you download all the drawings ? my recall is that there are 309 pages in the book The very last pages are the cocks , but you are right that I did not draw up the Tri-**** itself which I think you are referring to --- and which is the white arrow in the picture. The red arrow is the...

Good to hear from you again ! Rich

And the castings appear to be Double Size of original plans ( ie. Flywheel 8-3/8" OD ) Rich

Beautiful Locomotive , and a great Picture . I wonder if my Wife's grandfather rode the 2530 ? He was a road supervisor and expert on valve gear for the C & NW. The railroad kept track of Coal consumption on every train and he would go out and ride with an engineer or a loco and determine if...

I took a 3 D Printer class at the local Tech college and am blown away with the detail possible on Resin Printers. That was right when Covid hit so have not cast the parts I made yet- Still have to get the temp controller and burnout oven working . There is a many step burn out procedure...

Me Too, always liked the Morton M5 Assume you have Bruce's SIC articles ? Rich