Whatzit?

[webenda]

First BLPC projector arc lamp for movie use introduced in 1929.

First famous arc lamp (the Enarc) introduced in 1935.

[webenda]

This arc lamp was run at 70 VDC and 70 Amps.

Largest BLPC arc lamp (Model A-4 Super Intensity: 13.6mm trim, 180 amps) introduced in 1949.

[webenda]

The auto carbon rod feed speed adjustment.

[webenda]

This arc light is located at ST. Vincent De Paul Store, 1101 N Mulberry St, Elizabethtown, KY 42701.

[webenda]

If anyone buys this thing, thinking it is a projector, they are going to be totally bewildered by it. It is not a projector, it is the light source for a 35 mm film projector.

[Rufus T. Firefly]

Should be useful to light up the yard at night to scare off the bears - get it for Murph!

[webenda]

This diamond has a name.
Whatzit?

[chuck]

Flange bearing frog, specifically an OWL (one way low speed). Flange bearing track alignment handles low speed/low traffic side of the diamond while the “normal” side is for the higher traffic side of the diamond.

[webenda]

Flange bearing frog, specifically an OWL (one way low speed). Flange bearing track alignment handles low speed/low traffic side of the diamond while the “normal” side is for the higher traffic side of the diamond.

What I had in mind was, "This diamond crossing is called, "Mulberry Diamond Railroad Crossing," Mulberry, Florida.

I like your answer much better, Chuck.

I didn't even notice that CSX's Valrico Subdivision high speed route had no cut in the rail. The CSX Valrico Subdivision trains run through the diamond at high speed on their tread with no gaps in the rail.

The Bone Valley Subdivision, which serves a number of phosphate mines along its route between Achan and Agricola, crosses the Valrico rails at slow speed by means of raising up on their flanges to cross over the top of the Valrico rails.

Sometimes this is called a Lift or jump frog.

Mullberry Crossing


This is another example.
A one-way, low-speed (OWLS) other way high speed, diamond in Champaign, Illinois.

[robert.]

That’s a penn dot trophy right there. Name tire shredder!

[webenda]

That’s a penn dot trophy right there. Name tire shredder!

"I am so proud of the department and the recognition that we've received," said PennDOT Secretary Leslie S. Richards. "Thank you, Robert."

[E7]

It all pales in comparison to the CNJ Bronx terminal:

http://members.trainweb.com/bedt/indloco/crrnjbxt.html

[robert.]

[webenda]

Trail marker with a punch on top.
You have to punch your contest sheet to verify you reached the "M" post.

[MurphOnMillerAve]

Wow, that analysis sounds brilliant, to me.