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Old 01-07-2021, 05:18 PM
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hjlyuen hjlyuen is offline
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1/87 scale sand silos and elevator

I was searching for a simple industrial siding for the covered hoppers on my 1/87 (HO) scale layout and found the silos and elevator in the attached photo. I was originally going to scratch build using styrene but decided to try a paper model instead. I am starting with the shortest of the 3 silos. There is still more work to be done like the hand railings and connecting pipes from the elevator. Because I canít see what is on top (even with Google Satellite photos), I am guessing there is either an access hatch or an inspection standpipe or both and I am still searching Google images for confirmation. Usually, the reason someone has to climb to the top of the silo is to change air filters in the dust collector. From the photo, I can only see what appears to be a vent or safety relief valve. Also, from the photo, the ladder appears to extend to the ground. Most ladders are 7-8 feet up in the air. Unless, someone forgot to remove extension ladder in which case I will shorten the ladder on my model.
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1/87 scale sand silos and elevator-elevator-silos.jpg   1/87 scale sand silos and elevator-1-short-silo-parts-4384.jpg   1/87 scale sand silos and elevator-2-short-silo-subassemblies-4386.jpg   1/87 scale sand silos and elevator-3-short-silo-without-railings-4387.jpg  
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  #2  
Old 01-07-2021, 07:12 PM
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That looks great!
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Old 01-07-2021, 07:33 PM
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That's a complex model, and very well done. I hope you will share images of the structure on the layout.

Don
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Old 01-07-2021, 08:26 PM
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MacSongLi MacSongLi is offline
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Very well done. Great detailing.


Gary
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Old 01-08-2021, 08:15 AM
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The ladder on the short silo gives access to the ladder on the taller silo, which in turn gives access to the head stock of the elevator for maintenance.

Also, the bottom of the "ground" ladder (in some cases) slide up and locks in place. This is to keep children (and other small beings) from climbing the ladder and maybe falling and injuring their-self.
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Old 01-11-2021, 11:26 PM
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Thank you for your kind comments. The tallest silo is now completed. I am guessing the silos were installed at various time because no two are alike. The tall silo has a skirt hiding the outlet hopper from view and the legs are different design. Like the short silo, I cannot see what is on top. An internet search revealed than cement silos usually have large vent (dust) filters. If there is vacuum conveying then the feed pipes connect to the vent filter. Otherwise, for pneumatic pressure conveying, the feed pipe connect directly to the top of the silo. In real life, these silos are used to store sand and are filled by gravity from the elevator. Google satellite photos of these silos, however, do not a show anything on the roof except for the pipe from the elevator, at least nothing tall enough to cast a shadow. Nevertheless, I will add a low profile pressure relief valve and inspection hatch. The hand railings and pipe from the elevator will be added later. For scale, i included a photo of the silos along side a covered hopper that I scratch built out of styrene except for the trucks, couplers and air brakes. I'm sorry but I promise to build my next rail car out of paper (except for the trucks and couplers).
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1/87 scale sand silos and elevator-4-tall-silo-parts-4389.jpg   1/87 scale sand silos and elevator-5-hopper-hidden-behind-skirt-4391.jpg   1/87 scale sand silos and elevator-6-tall-silo-without-railings-4393.jpg   1/87 scale sand silos and elevator-silos-scratch-built-covered-hopper.jpg  
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Old 01-13-2021, 04:53 PM
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The oxide colored skirted silo is done. The photos clearly show a feed pipe suggesting pressure conveying but not much else. So I am going to make some assumptions and guesses: a pressure relief valve, and inspection (access) hatch on the silo top, and a maintenance access door on the skirt and an out feed auger on the side.
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1/87 scale sand silos and elevator-7-skirted-silo-4400.jpg  
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  #8  
Old 01-13-2021, 08:16 PM
Dave Pete Dave Pete is offline
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Your project is looking very good. You might be able to find some plans in a Model Railroader past issue that show the top details.
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Old 01-14-2021, 12:00 PM
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ennder ennder is offline
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Have a look here. They have some top views of Lime and Dust silos.

Dust Silos & Additive Tanks For Sale - Aggregate Systems

they look very similar to the ones in the photo you are using.
also be aware that old silos are like people... no two are the same.
given when they were built, the laws on how a silo was built,and what
equipment it must have, were different then they are today.
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