Showing posts with label projects. Show all posts
Showing posts with label projects. Show all posts

Thursday, January 4, 2018

2X4 Chainsaw Mill And 12" Cupola

So from my project binders comes 2 more plans. The first is a easy 2 x 4 chainsaw lumber mill by Will Malloff. The plan is a compressed version of the plan in his book (see review above) "Chainsaw Lumbermaking" and comes out of Fine woodworking magazine. Both are published by The Taunton Press, the editor included the article in what is basically a book review. Here's the article, there are more details and pictures in the book.

Click on the pages to expand.

 The second plan is from Mechanics Notebook # 12 reprinted by Lindsey Publications. As mentioned in a previous post this is another cupola plan. This one averages out to 12" bore below the stack outlet. This one is unique in that the working section can be rolled out from under the stack section for cleaning, repairs and even charging for a short run. It has a drop bottom making cleaning even easier. For the small user you can skip the charging door and charge with the working section pulled out and melt up to 400 + lbs of iron per charge. For a small outfit in the casting business you can use the charging door and melt 1500 lbs/hr. on a continuous basis. Truly a nice well thought out design. His suggestion that larger cupolas have there bore reduced by adding temporary refractory, in order to reduce there capacities, in times of economic downturns, is exactly what was done during the thirties depression and subsequent downturns.

Wednesday, January 3, 2018

Vertical Vise And a Cupola From My Project Binders

Please note I am no longer using light box for image display I found images would not open to original size and resolution was poor for page images. Since I have been posting lots of page images lately for short plans and articles, my apologies. Now when you click on an image it will open in a full size page. If that is not original size, click image to expand to original size. I think you will find this much better reading and viewing.

Here are a couple of interesting plans from my project binders. When I am browsing the web and I come across a plan I like, I usually print it off rather than risk not finding it again and I like paper copies. This works ok but it starts to take up space after a while. Here's over 6000 pages in binders.

I also have a love for good patents with details, to that end here's my collection of workshop and yard tools and machine patents, 10,000 + pages. If there's any interest I'll upload more from these two sources in the future.

So first from my blacksmithing binder comes this great vertical vise By Brian Gilbert, editor of "The Hammer's Blow" newsletter. I liked this the minute I saw it, probably build one this summer for my metalworking and ventilated shops, cut and dig a cube in the floor or pull a patio stone and fill with concrete with a hole in the center to slip the vise in.

Click on images to expand.

This one is from one of my project binders and was originally published in Mechanix Illustrated. Don't know if the time will ever present itself but I have always wanted to build a small cupola just for thrills. This is a 9" bore cupola and would be better operated as a cupolette batch melter than as a cupola continuous melter. The design does not include a slag port, you can keep an eye on the slag build up in a batch melter better than in a long continuous melt. If you fill the tuyeres with slag, your done, down for repairs.

The other concern is the size of the bore 9" is about as small as you can go. The only fuel that you can use that will not cause you problems is metallurgical coke. Now a days you pretty well have to live near a foundry or steel mill to get it. You can do it in larger cupolas with charcoal or coal, the ancients even did it with wood before charcoal was developed but it was very inefficient with much metal being oxidized up the vent. Browsing the web many home hobbyists have tried 9 and 10 inch bore units with charcoal, with less than satisfactory results. 12" or larger bores might be more successful with charcoal. I have a few plans for larger bore cupolas that I might upload at a later date.

If you can get the coke this is a nice little furnace that can be easily run on your own relatively safe.

Here is a picture that has made the rounds, around the web and in foundry books. The picture was taken in 1898 in Shanghai, pretty primitive. Apparently this was the state of most foundries in China at that time. Mind boggling how far they have come in a little over 100 years.

And here's your chuckle for the day. A chuckle only because no one got hurt. Its amazing one of those boilers didn't go KABOOM.

Saturday, December 30, 2017

American Machinist And Mechanic's Notebook Projects

Its been way to cold to go anywhere near the outdoors ha ha, -32*C, -42 with the wind chill last night. Nothing I could do except feed the wood stove, nurse a bottle of premium CC and ginger ale, and read a few good books. I also took the time today to play with my flat bed scanner and make a couple of pdf"s. I had a couple of short compilations of projects from American Machinist and some other old magazines that Lindsey Publications had put together back in the 80's and sold for 2 or 3 bucks each in his catalog.

Its a time consuming project to scan, import into word, resize and clean up, convert to pdf save a copy and then reduce the res. on a second copy so its small enough to upload in a reasonable amount of time. It's nice to see the finished product though. I have 1.5 GB of American Machinist magazines and twice that much in American and Canadian Machinery mags. These were all big in the first quarter of the last century, but if you like old iron these old mags are fascinating. I am hoping to make more compilations in the future.

As mentioned these two were compiled by Lindsey Publications. I have seen 1 or 2 of these projects circulated on the web, but most of it is fresh or hard to find material for the web. The first is a 15 page compilation of metalworking projects from American Machinist including some good molding information for casting.

To download "Projects From American Machinist" go to my Books - Free Downloads page. # 41 - 4 MB - pdf

The second compilation was put together from projects in a number of electrical and engineering magazines from 1916 to 1926. There are some nice projects here for the home shop tinkerer, some small chemical balance scales, a universal lathe attachment, a small carbon arc crucible furnace, a practical high frequency Tesla coil, that will fry you if your not careful. From the article "Constant caution will well repay, and is preferred to saying it with flowers". No beating around the bush there, ha ha. There is a small surface grinder, I have seen this on the web but never the whole article. You will also find a neat simple hand milling machine, and a 1 HP gasoline engine of simple construction.

To download "Mechanics Notebook 20" go to my Books - Free Downloads page. # 42 - 9 MB - pdf  

Even if you choose not to play with these ideas in the shop, they make for interesting reading.