Search found 3051 matches

by gwrdriver
Fri Dec 06, 2019 11:57 am
Forum: Live Steam
Topic: Plate/Pan-Style Propane Burners
Replies: 12
Views: 406

Re: Plate/Pan-Style Propane Burners

Technically speaking, the materials would lose strength (tensile and shear) as temperatures rose, but not IMHO to the point of a meltdown. Anything can happen of course, especially if the burner system is badly designed, built, and operated, but assuming the foregoing are well done, the gas flames, ...
by gwrdriver
Fri Nov 22, 2019 9:37 pm
Forum: Live Steam
Topic: shipping engines
Replies: 14
Views: 1168

Re: shipping engines

Hi Fred,
Good advice above. Free wood pallets are everywhere. I've shipped a number of specialized items and I started with a heavy oak pallet and built the crate on top of that. There are are also light "white wood" pallets but I steer clear of those.
by gwrdriver
Fri Nov 22, 2019 4:18 pm
Forum: Live Steam
Topic: pneumatic bell ringer
Replies: 10
Views: 1168

Re: pneumatic bell ringer

A little history, for anyone interested. In the mid-1950s the Kemtron Corp, Fresno CA, mostly known for their high quality lost wax detail castings used on imported brass O & HO-gauge locomotives, produced a Baldwin bell in 1-1/2" scale as a commemorative piece. They ran it as a curiosity in one of ...
by gwrdriver
Tue Nov 19, 2019 4:41 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 1246

Re: Crank Pin Alignment

Glenn,
Without keying, the usual method was to use a quartering jig (there I go with the "jig" thing again) to align the press. Seems that these aren't used much any more in large scale work which relies on keying instead. Now that we have anaerobics the quartering jig might make a comeback.
by gwrdriver
Tue Nov 19, 2019 2:24 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 1246

Re: Crank Pin Alignment

Actually, it doesn't matter if the wheeled axles aren't quartered at precisely 90°, as long as each side is over/under by the same amount.
by gwrdriver
Tue Nov 19, 2019 12:12 pm
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 1246

Re: Crank Pin Alignment

For a driver casting which hasn't been broached for quartering, no (to question #2), but naturally one would try to shoot for the visual center of the crank boss.
by gwrdriver
Tue Nov 19, 2019 9:45 am
Forum: Live Steam
Topic: Crank Pin Alignment
Replies: 22
Views: 1246

Re: Crank Pin Alignment

There are several ways of doing this job depending upon your equipment. All methods (which come to mind) involve making a jig to locate the crankpin bore an exact distance from the axle bore. You'll notice I used the term "bore" instead of hole, because it's always best to bore these holes to be in ...
by gwrdriver
Sat Nov 16, 2019 8:25 am
Forum: Live Steam
Topic: Pump o-rings
Replies: 14
Views: 1054

Re: Pump o-rings

I double down on the Parker O-ring Handbook recommendation. I've had a copy for years and rely on it. The problem for hobbyists is of course that it's often difficult to locally source a small quantity of o-rings (or ONE) in a specific size and compound and a "that'll git'er done" ring from the hard...
by gwrdriver
Wed Nov 06, 2019 9:20 pm
Forum: Live Steam
Topic: Conical Boiler Casing
Replies: 10
Views: 1674

Re: Conical Boiler Casing

I do a lot of things "just 'cause" I want to see if I can do it. And it usually works out OK.
by gwrdriver
Sat Nov 02, 2019 9:51 pm
Forum: Live Steam
Topic: Conical Boiler Casing
Replies: 10
Views: 1674

Re: Conical Boiler Casing

PS - I actually did the volume calculations for comparison between doing a tapered section and just a straight tube on a typical "wagon-top" boiler to determine how much volume would be lost. On the projects I had to hand that turned out to be a negligible percentage. This short-cut might not be app...
by gwrdriver
Sat Nov 02, 2019 11:44 am
Forum: Live Steam
Topic: Conical Boiler Casing
Replies: 10
Views: 1674

Re: Conical Boiler Casing

On the few boilers I've been tasked to build (copper) which required a tapered course (a "truncated cone") I determined that the internal volume lost was insignificant compared to the time effort and cost of doing a short transitional taper. I built the boilers with straight barrels cosmetically hid...