Recent content by rickhann

A polar planimeter is a different animal. A planimeter measures area. The map measuring device shown measures distance. As for the RPM counter, I vividly remember my father using the exact same type of RPM counter to set the optimum speed to run a threshing machine (some people called them...

If you get stiff in the joints, stay out of them joints! (Groan)

In my post I stated that the groove width was not critical. By that I meant a few thousandths either way for groove width would not cause problems whereas a few thousandths on groove depth is CRITICAL. Anyone with a modicum of common sense would know that the groove must be wide enough to fit...

Brian, your method works if the bore diameter is machined to plan. If the bore is larger or smaller than planned, the groove depth will be affected. I would think that it is better practice to first measure the bore diameter and work backwards from that dimension using the actual o-ring...

In 1960, I worked in a small iron foundry in northern Illinois during my summer break from college. There were a couple of veteran foundry men who liked to impress visitors such as salesmen. On occasion when the cupola was tapped for the days' pour, one of them would ask the other if it was...

If you have problems with boiling over, perhaps you should replicate the automotive practice of pressurizing the cooling system and running 50/50 antifreeze. 50/50 antifreeze boils at 223 F and a standard 15 Lb pressure cap raises the boiling point by 45 degrees F. If you still have boiling...

I would think that the desired max temp would be around 212 F for a Hit&Miss. That would be why the old engines had a open water tank surrounding the cylinder casting. When running under a load the water would boil.

These magazines are no longer for sale. They have sold.

The boxed weight is about 18 pounds. Maybe my posting was not clear, but I will pay shipping to lower 48 states. Thanks for the interest. Rick

I have a complete set of Bob Washburn's Strictly I.C.'s magazines for sale. There are 84 issues and they are in very good condition. I purchased the complete set 15 years ago and they have been used only for reference. No soiled or torn pages. from being in the workshop I am asking $400.00...

Ministeam.com

Google "Childs Camper Pistol"

Ray, I noticed that you have four holes in your taper lock. I I suggest you tap an additional 2 holes on opposite sides to use for jacking screws to remove the taper lock. I have made several of these taper locks and have found that they can be a bit of a challenge to remove once tightened. I...

Bob, I remember the contest to name the "Iron Pony". I was in in High school in Somonauk at he time the contest was held. I don't remember who won or what the prize was. As you know, both locomotives were built by Augie Otto in his shop south of Sandwich. The second locomotive still runs...