Search found 643 matches

by Bruce_Mowbray
Fri Jan 31, 2014 8:04 am
Forum: General Discussion
Topic: Does your knurling look bad ?
Replies: 11
Views: 1209

Re: Does your knurling look bad ?

I have also found that lubrication helps the knurl to find it's way back on track and produces a "clean" knurl. It also keeps the knurls and the part you're knurling cool and the knurl axles lubricated, extending the life of the tool. I use Moly-D on steel and stainless, WD-40 on aluminum and brass.
by Bruce_Mowbray
Fri Jan 31, 2014 7:56 am
Forum: General Discussion
Topic: 7x12 bandsaw vs gray cast iron!
Replies: 24
Views: 2613

Re: 7x12 bandsaw vs gray cast iron!

Wearing gloves while working on any rotating machinery is not a good idea. Lathe chucks are particularly efficient at grabbing onto gloves and loose clothing. Watch those shop aprons around lead screws too. When I first started my wheels, it didn't take long to come up with a simple cardboard-duct t...
by Bruce_Mowbray
Thu Jan 30, 2014 8:15 am
Forum: Live Steam
Topic: Sellers Type N Injector
Replies: 18
Views: 2892

Re: Sellers Type N Injector

For the type N injectors we have, Here are the correct dimensions. (the 6 1/2 I mesured before was not a type N, sorry) 10 1/2 measures 17 inches. On a light duty 2-8-0 127,000 lbs 8 1/2 measures 16 inches, On a heavy 2-4-2 Saddle Tank Engine 85,000 lbs 6 1/2 measures 13 inches. On a light 0-6-0 Sad...
by Bruce_Mowbray
Thu Jan 30, 2014 6:55 am
Forum: Live Steam
Topic: 10 Wheeler boiler lagging pic
Replies: 12
Views: 1377

Re: 10 Wheeler boiler lagging pic

Sweet looking engine! I'm loving all that brass work, it would be a shame to paint it.
by Bruce_Mowbray
Wed Jan 29, 2014 3:17 pm
Forum: General Discussion
Topic: 7x12 bandsaw vs gray cast iron!
Replies: 24
Views: 2613

Re: 7x12 bandsaw vs gray cast iron!

I will also highly recommend the bi metal blades when cutting cast iron (Lennox). On my 4 x 6 little band saw, I cut 82, 4 1/2" diameter slugs (for passenger car wheels) out of grade 40 cast iron bar. 10 tpi, medium speed, medium pressure, no coolant. The blade still had lots of life after these wer...
by Bruce_Mowbray
Wed Jan 29, 2014 2:59 pm
Forum: Live Steam
Topic: Sellers Type N Injector
Replies: 18
Views: 2892

Re: Sellers Type N Injector

The 6 1/2 we have measures 10 1/2" if that would help.
by Bruce_Mowbray
Tue Jan 28, 2014 6:51 am
Forum: Riding Scale Railroading
Topic: Home Railway Journal - relaunching in 2014
Replies: 26
Views: 7224

Re: Home Railway Journal - relaunching in 2014

Great to hear that this magazine will be back. I don't remember if my subscrption is still valid, if not, I will surely be renewing.
by Bruce_Mowbray
Mon Jan 27, 2014 4:53 pm
Forum: Live Steam
Topic: What Lubricator Is This?
Replies: 7
Views: 1486

Re: What Lubricator Is This?

Might it even be a copy of the DV3? Pics are of the one we are installing on our 0-6-0. It didn't dawn on me until today as I looked over at it.
by Bruce_Mowbray
Mon Jan 27, 2014 10:23 am
Forum: Live Steam
Topic: Turning Drivers
Replies: 22
Views: 3195

Re: Turning Drivers

http://www.youtube.com/watch?v=Ban_UuOiMyw



As promised. Ajax is one of the few companies left who supply railroad quality steel tire rings. They will even do the rough machining of the profile if requested.
by Bruce_Mowbray
Mon Jan 27, 2014 6:45 am
Forum: Live Steam
Topic: Turning Drivers
Replies: 22
Views: 3195

Re: Turning Drivers

Harold, I was looking for the video where the slug comes out of a soak furnace (as in the temperature is "soaked" all the way through the piece) and a press punches a hole in the center, essentially producing a white hot donut of steel. I may have the link on my office computer, I will look today.
by Bruce_Mowbray
Sun Jan 26, 2014 9:19 am
Forum: Live Steam
Topic: Turning Drivers
Replies: 22
Views: 3195

Re: Turning Drivers

Today, the tires (ring) for steam locomotives are made this way http://www.youtube.com/watch?v=GDyWyDP3cvs GDyWyDP3cvs starting off as a ring, then rough machined on a vertical boring mill, probably CNC, then final ID is machined to fit the wheel center for proper shrinkage. The final profile is tri...
by Bruce_Mowbray
Sat Jan 25, 2014 8:41 am
Forum: Live Steam
Topic: Turning Drivers
Replies: 22
Views: 3195

Re: Turning Drivers

I'm told "There is a reason railroads used cast iron as a hub and steel as a tire", but that wasn't explained any further to me... Thanks! Mike Walsh In short, the railroads used cast iron for wheel centers before and near the turn of the century mainly because the quality of low carbon, large stee...