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Steam Stationary Engines, Traction Engines, Steam Boats Antique steam engines, their boilers, pumps, gauges, whistles and other related things that make them run.

Steam Stationary Engines, Traction Engines, Steam Boats

Antique Vertical Steam Engine


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  #1  
Old 10-11-2017, 03:31:05 PM
badboy1950 badboy1950 is offline
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Photo Antique Vertical Steam Engine

i visited with a fellow club member this morning to see if he had an engine that would fit an economy tractor i am about to work on.
we looked through his collection in the garage, storage trailers and a few sheds but found nothing that would fit.
as we were walking and talking i mentioned that i am machining and assembling a Stuart steam engine model.
he said he had a small steam engine in one of the sheds and would i like to take a look at it.
yes i would .... fast forward, i have the engine on my bench and took these photos.
a google search of J C Moody Boston which is on the tag brought up nothing, also searched antique steam engine Moody on google and here with no results yet.
has anyone seen another like this ?
is this engine a one off built by moody ?
your thoughts or info would be appreciated.
Dan
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  #2  
Old 10-11-2017, 03:41:06 PM
badboy1950 badboy1950 is offline
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Default Re: antique vertical steam engine

the flywheel is 7" and the crankshaft is 15 " long.
everything moves freely and smooth by hand.
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Old 10-11-2017, 07:08:04 PM
al vanley al vanley is offline
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Default Re: antique vertical steam engine

The riding cut off seems unusual for an engine of that size. Guessing it was manufactured for some commercial use, maybe jewellery manufacture or industrial sewing operation. The Pumphouse Museum in Kingston, Ontario, has several engines of similar size used to run industrial sewing machines. Anyway, very nice find, thanks for posting it.

Al
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Old 10-11-2017, 10:55:12 PM
cyberbadger cyberbadger is offline
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Default Re: Antique Vertical Steam Engine

To my eyes it looks suitable for a small steam launch.

-CB
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Old 10-12-2017, 05:51:31 PM
badboy1950 badboy1950 is offline
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Default Re: Antique Vertical Steam Engine

i oiled it last night and ran it on 20 lbs. of air, it runs smooth.
Al what do you mean by riding cutoff as i am new to the world of steam.
what are those two pumps running of the single eccentric do ?
Dan
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Old 10-12-2017, 11:55:58 PM
reubenT reubenT is offline
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Default Re: Antique Vertical Steam Engine

one pump might be for boiler feedwater, don't know why 2. The extra eccentric running a cutoff valve would help the engine run more efficiently. But makers and users of small engines were not usually too concerned about maximum efficiency. The cutoff valve on the larger engines would be adjustable by hand crank or governor controlled, to vary the degree of cutoff based on load requirements. Many different versions were tried. The corliss rocker valve design was a popular variable cutoff design fully governor controlled. I have reprints of old books with detailed drawings of a number of different valve actions. Interesting engine anyway. I know there were quite a few small scale makers that got lost in history. Although ACME was not too small of a manufacturer I have an ACME built engine of westinghouse design that seems pretty rare. A vertical 2 cylinder single acting "high speed" engine. Hunting the internet I've only been able to find one other of it's kind and it had a different valve action.
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Old 10-13-2017, 08:10:02 AM
Dale Miner Dale Miner is offline
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Default Re: Antique Vertical Steam Engine

Quote:
Originally Posted by badboy1950 View Post
i oiled it last night and ran it on 20 lbs. of air, it runs smooth.
Al what do you mean by riding cutoff as i am new to the world of steam.
what are those two pumps running of the single eccentric do ?
Dan
Is it possible the larger pump was a vacuum pump to enable running condensed?
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Old 10-13-2017, 09:09:38 AM
badboy1950 badboy1950 is offline
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Default Re: Antique Vertical Steam Engine

Dale , what is running condensed ?
Dan
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Old 10-13-2017, 10:39:22 AM
Grape Grape is offline
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Default Re: Antique Vertical Steam Engine

I'm not the most experienced person on steam engines but I'm learning. Cutoff is the point where the valve opens or closes to push steam into the cylinder. This allows the governor or operator to use the smallest amount of steam per stroke of the piston and still get the necessary power.
I also believe what Dale means by running condensed is re-using the water that condenses from the steam during operation. (but don't take that as gospel)
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Old 10-13-2017, 05:48:21 PM
Joe K Joe K is offline
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Default Re: antique vertical steam engine

Quote:
Originally Posted by al vanley View Post
The riding cut off seems unusual for an engine of that size. Guessing it was manufactured for some commercial use, maybe jewellery manufacture or industrial sewing operation. The Pumphouse Museum in Kingston, Ontario, has several engines of similar size used to run industrial sewing machines. Anyway, very nice find, thanks for posting it.

Al
It may not be riding cutoff. Usually riding cutoff engines have some way to adjust the "rider" and thereby affect admission (or other events of the stroke.)

The original riding cutoffs usually had a handwheel on the head (or nearby) and right/left threads on the valve stem such that turning the wheel affects both riders equally in their effect on the admission.

It may simply be "separated" valve action between upper cylinder and lower cylinder. A way to compensate for "angularity of the connecting rod" (which in valve setting is usual to hit a mid-point with neither head nor crank end exactly optimal but both "near optimal") and a way to fine tune both when separated.

Opening the valve chest should reveal all.

Joe in NH
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