Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines
The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: St Paul Steam on June 27, 2019, 06:25:04 am
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Yes please Bruce! I am interested!!
I am definitely interested Bruce!
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Another fantastic creation Bruce!
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Oh yes Please Sir ... can we have some more!!!
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Yes please Bruce! I am interested!!
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Possibly a slight difference in pivot screw tension, or port hole diameters or positions?
So many variables in a situation like this, but so what if there is a slight difference between the two when running free. Put them both under different loads and they'll run however they need to in accommodating that resistance.
Another way to go might be to put exhaust throttles on both of them so they can be individually tuned and balanced.
Re: "Another way to go might be to put exhaust throttles on both of them so they can be individually tuned and balanced"
I had given that some though because I knew there would be speed differences in all but wide open running, I thought about making a spacer plate in between the boiler mounted steam chest & the boiler, but in the end I didn't think it worth the effort. one way to stabilize/time the running is to have them (drive axles) linked together, & that is the reason for my part #2 engine build (yes, your hearing it here 1st ) this one will have 2 #35's with the axles facing inward & joined by a Jensen #25 heavy flywheel, I'd like to incorporate ball bearings into this model, but that would take some doing as there is not enough extra material on the stanchions to allow for the extra room needed for the roller bearings...needs some thinking on. I had always planned on building both of these from the onset & have all the needed materials on hand, this one shall be called J-42R, I haven't done a build thread for years....but if there is enough interest, I would be willing to start one for my fellow steamers/friends.
(https://i1189.photobucket.com/albums/z440/bruceang1/20190628_141722_zpsjnmpt6oc.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190628_141722_zpsjnmpt6oc.jpg.html)
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That is an impressive conversion you have built there Bruce. Very well balanced, and pleasing to the eye.
Well done, a lovely engine / engines.
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Neat design. Thanks for sharing!
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Wowee Wow Wow Wow.
Brilliant conception and execution.
Like Daniel commented, so many variables on ease of starting.
Great job Bruce!
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I did a timed run last night to see how long a full fill would run from top to bottom of the sight glass, I got a 1hr 21 minute run with the juice cut back to near minimal, oscillators wont run all that slow, but interestingly the engine on the left runs easier & at a faster clip, but the engine on the right will run @ less pressure.
Possibly a slight difference in pivot screw tension, or port hole diameters or positions?
So many variables in a situation like this, but so what if there is a slight difference between the two when running free. Put them both under different loads and they'll run however they need to in accommodating that resistance.
Another way to go might be to put exhaust throttles on both of them so they can be individually tuned and balanced.
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The boiler crossover manifold with the pressure gauge fitting, did you make it?
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Yes
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Very nice. Custom work always impresses me.
The boiler crossover manifold with the pressure gauge fitting, did you make it?
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I did a timed run last night to see how long a full fill would run from top to bottom of the sight glass, I got a 1hr 21 minute run with the juice cut back to near minimal, oscillators wont run all that slow, but interestingly the engine on the left runs easier & at a faster clip, but the engine on the right will run @ less pressure.
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You've certainly done it again Bruce!! 8) 8)
Off to watch the video soon...
By the way, that tag is very nice too! Have a few Jensens here from that era that are missing them.
Also think it looks better with the wire sight gauge protectors and one whistle/one SV
"Also think it looks better with the wire sight gauge protectors and one whistle/one SV"
I strived to use identical wire sight gauge protectors on this project, I specifically bought 4 #35's that had them, I think they look neat , plus they're a treat to set up....the wire slides out of the way so the nuts can be tightened without removing they whole assembly.
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Bruce, truly a beautiful looking build and it runs so smooth as well, thank you for posting.
It just goes to show that what we can build is only limited by our imagination.
Gary
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Bruce, you have made another modified Jensen that is fun to watch.
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That's an incredible custom build there Bruce, truly a masterpiece and looks 'factory'.
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Thanks everyone for the nice comments, much appreciated.
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Bruce, Jensen Mfg. Co. could use a guy like you to dream up new and innovative applications for their products. Having once owned an Empire B-42, I can say your iteration looks better, runs better and is exceptionally well balanced.
Bravo for St. Paul Steam!
Rog
Rog, being a new product designer for Jensen would be a treat, just let me loose in those parts bins....but alas...that shall never be. As I've always said....since I cant afford the "top shelf stuff" I have to settle with making my own "one offs".
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Bruce, Jensen Mfg. Co. could use a guy like you to dream up new and innovative applications for their products. Having once owned an Empire B-42, I can say your iteration looks better, runs better and is exceptionally well balanced.
Bravo for St. Paul Steam!
Rog
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What a fantastic build, love it Bruce !!!
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Another fantastic custom build by Bruce, i love it!
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You have most certainly done it again, Bruce!
You havr changed the way I think about the somewhat ignored Jensen 35.
Superbly well done...!!!
Gil
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Jaw-dropping, Eye-popping, Totally Amazing and Superb!!!
Well executed in every detail, and beyond beautiful.
Bruce .... you're the MAN
St. Paul Steam strikes again!
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I like your way of think’n Bruce, that’s pretty cool.
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That's an especially nice engine Bruce - great how you come up with these ideas!
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You've certainly done it again Bruce!! 8) 8)
Off to watch the video soon...
By the way, that tag is very nice too! Have a few Jensens here from that era that are missing them.
Also think it looks better with the wire sight gauge protectors and one whistle/one SV
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Don`t get any nicer than that Bruce, very impressive. 8)
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something I've been busy with for the past few weeks, it seems that the Jensen #35 is such an under appreciated little engine, that doesn't bring much on E-bay, yet is such a fine runner & good value that I thought I'd try to bring her' status up a bit with "2" of them mounted side by side Empire B42 style, here is my attempt....
This is a custom built steam plant that features (2) Jensen #35 steam engines on one common firebox which measures 6.7/16" x 5.1/2" & has several coats of high temp paint on the firebox , has (2) 450 watt 4 amp heaters, (2) chimney stands & stacks, (one has hole delete) the firebox has all the nuts soldered into the underside of lip & the center bar on firebox is 1/8" thick & tapped for all bolt threads. the 3/4" base is 9.5" Sq 1 engine has been reversed & pocket threaded lugs soldered in (cant leak) there is a nickel plated crossover manifold (with 2 Banjo screws) in rear to balance boilers & provide a place for the pressure gauge. has old style SV has been converted into an adjustable SV now. both old style sight glasses completely cleaned & rebuilt. firebox is insulated Jensen style under the boiler, also with heat shield, boilers are completely insulated with flame proof strips under boiler & under the boiler bands. has Heavy duty grounded 3/16 gauge cloth cord with white tracers & vintage style 3 prong plug, weight 7 lbs. 2 oz.'s with water load. it has an UL label & a custom "brass tag" updated with the correct information. again, this was not a Jensen Mfg factory offering , but rather, something produced by me.
(https://i1189.photobucket.com/albums/z440/bruceang1/20190626_211719_zps6pz7nq45.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190626_211719_zps6pz7nq45.jpg.html)
(https://i1189.photobucket.com/albums/z440/bruceang1/20190626_211730_zps9mirsmdo.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190626_211730_zps9mirsmdo.jpg.html)
(https://i1189.photobucket.com/albums/z440/bruceang1/20190626_211609_zpskvije0xl.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190626_211609_zpskvije0xl.jpg.html)
(https://i1189.photobucket.com/albums/z440/bruceang1/20190626_211530_zpscnup0vxt.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190626_211530_zpscnup0vxt.jpg.html)
it was very hard to capture this brass tag, my local plaque maker did an exceptional job of this I thought
(https://i1189.photobucket.com/albums/z440/bruceang1/20190626_210842_zpsbq7itogm.jpg) (http://s1189.photobucket.com/user/bruceang1/media/20190626_210842_zpsbq7itogm.jpg.html)
the video, its a bit long...my apologies
https://youtu.be/57U-IybphBg