Search found 83 matches

by K. Brouwers
Tue Aug 04, 2020 1:49 am
Forum: Live Steam
Topic: Air brakes
Replies: 9
Views: 440

Re: Air brakes

Hello Again.
The electrical pressure switches work on the same principal as the gasoline compressor head un-loader switches, good to think of them they totally slipped my mind. He He He
Karel
by K. Brouwers
Tue Aug 04, 2020 1:42 am
Forum: Live Steam
Topic: Air brakes
Replies: 9
Views: 440

Re: Air brakes

Hello Friends, Yes of course the switches have an electrical application. They work by a mechanical diaphragm and that diaphragm mechanically releases the pressure on the compressor head by actuating a small valve on the side of the switch. I have had them apart many times. I do realize electronics ...
by K. Brouwers
Mon Aug 03, 2020 6:12 pm
Forum: Live Steam
Topic: Air brakes
Replies: 9
Views: 440

Re: Air brakes

Hello Glenn, Some air compressors have a exhaust valve pressure switch. Perhaps you could use one of these to serve as your relief of the air pressure when you reach a set pressure point. the air relief mechanism of one of these switches is mechanical in its function. The relief valve is rather smal...
by K. Brouwers
Mon Jul 13, 2020 5:15 am
Forum: Riding Scale Railroading
Topic: Water column
Replies: 9
Views: 957

Re: Water column

Hello friends I think Johnny O is referring to a water glass water column. These are basically a pipe connected to the back head of the boiler above and below the the waterline. the water glass and try cocks were then attached to this. The water inside the column would stay relatively calm compared ...
by K. Brouwers
Fri Jul 03, 2020 4:42 am
Forum: The Junk Drawer
Topic: Harold!
Replies: 31
Views: 2245

Re: Harold!

Hi Harold,
So happy to hear you are out and about.
Karel
by K. Brouwers
Wed Jul 01, 2020 6:40 pm
Forum: The Junk Drawer
Topic: Harold!
Replies: 31
Views: 2245

Re: Harold!

Hello Harold,
Lets hope this is only a minor stumble in your life. I am still looking forward to our meeting when I can visit the states again.
Get well soon
Karel
by K. Brouwers
Sat Jun 13, 2020 6:57 pm
Forum: Build Log
Topic: Green Twin Oscillator
Replies: 4
Views: 831

Re: Green Twin Oscillator

Hello Pat,
I think to say steep learning curve would be an understatement. Congratulations nice model.
Karel
by K. Brouwers
Sun Jun 07, 2020 8:39 pm
Forum: General Discussion
Topic: Machinery Course Textbook Recommendation
Replies: 7
Views: 1314

Re: Machinery Course Textbook Recommendation

Hello Friends,
Tools and Manufacturing Engineers Handbook is available on the Internet Archive.

https://archive.org/details/ToolAndManu ... rsHandbook

A wonderful resource for titles of many books pertaining to many of the things that interest all of us.
Cheers
Karel
by K. Brouwers
Mon Jun 01, 2020 11:21 pm
Forum: Live Steam
Topic: how to design an axle pump in 3/4 scale
Replies: 17
Views: 3294

Re: how to design an axle pump in 3/4 scale

Hello Squandit,
Have look here:

http://www.ibls.org/mediawiki/index.php ... ering_Data

This book contains a wealth of information on locomotive mechanical design page 15 talks about steam consumption and pump sizing.
Happy building :D
Karel
by K. Brouwers
Wed May 06, 2020 2:38 pm
Forum: Grand Scale Railroading
Topic: Drive Wheels for 12" gauge
Replies: 4
Views: 1280

Re: Drive Wheels for 12" gauge

Hi Marty, That makes it more complicated, could you turn the fly crank thinner with a boss that would press into the wheel and press the axle into a smaller hole in the fly crank. that would also give you the counterweight with a little re profiling. Grabbing at straws perhaps castings would be easi...
by K. Brouwers
Wed May 06, 2020 11:28 am
Forum: Grand Scale Railroading
Topic: Drive Wheels for 12" gauge
Replies: 4
Views: 1280

Re: Drive Wheels for 12" gauge

Hi Marty Would it be possible to attach a counterweight with a boss for the crank pin to the wheel you have ? I am willing to make a pattern and have some cast for you but I think it might be a while before you might have them due to the current health emergency. :cry: . Ocean shipping cost should b...
by K. Brouwers
Tue Apr 28, 2020 2:07 am
Forum: Live Steam
Topic: CliShay/Big Bertha question
Replies: 15
Views: 2702

Re: CliShay/Big Bertha question

Hi Scotty, Until the cylinders are warmed up you will have condensation in the cylinder. If there will be enough enough to cause a problem I can not say for sure. A slide valve engine will force condensation past the valve where as a piston valve engine might be damaged. Since you are making your ow...