Has anybody seen the smallest Line Materials cobrahead? I have seen it on several websites; one referred to it as a "Night Sentry" and a scan of a 1966 Line materials catalog page referred to it as the "Dusk to Dawner".

http://www.vintagestreetlights.com/history/joe227.gif


http://www.eskimo.com/~jrterry/line-material.html  (Right above the Unidoors on the page).

I have seen several in my life and I  always thought they were a neat little fixture. I wouldn't mind getting a hold of one, but  would imagine they are like trying to find "gumbands on Mars" . In the one picture, it looks as if the lamp may be base up. Anybody know more about it?

KG

that is a kool little fixture i have a few gumballs i  have bought and saved from different jobs 

I saw them somewhere in Virgina a few of them....also I saw 2 of them in Maryland...I do not know the exact place...but its somewhere in Prince George's County near Bowie.......not sure if its run in PEPCO or BGE...

Different looking and that is for sure!

if only they still sold these,i would buy one and never have to worry about a crappy bucket again.

Has anybody seen the smallest Line Materials cobrahead? I have seen it on several websites; one referred to it as a "Night Sentry" and a scan of a 1966 Line materials catalog page referred to it as the "Dusk to Dawner".

http://www.vintagestreetlights.com/history/joe227.gif


http://www.eskimo.com/~jrterry/line-material.html  (Right above the Unidoors on the page).

I have seen several in my life and I  always thought they were a neat little fixture. I wouldn't mind getting a hold of one, but  would imagine they are like trying to find "gumbands on Mars" . In the one picture, it looks as if the lamp may be base up. Anybody know more about it?

KG

Yes, these arwe base up lamps. I'd absolutly LOVE to get my hands on one of these........

I've been fascinated by these as well.  Our local power company used them frequently for company yards, and I've seen them installed in other places as well.  One small town I know of nearby even used them as streetlights.

I've been fascinated by these as well.  Our local power company used them frequently for company yards, and I've seen them installed in other places as well.  One small town I know of nearby even used them as streetlights.

There's a town in MD called Hagerstown MD that used those fixtures (not sure if exact same ones but same design and refractors) used as streetlights on 6 foot upsweep arms!!!

According to that sell sheet, apparently they can be clamped to an arm if needed.

Never actually phisically seen one, though I'd love to.....

Hello, not far from Where I live the power company still has a bunch of these in 175 Mercury 240 volt reactor ballasted..but not for long I'm afraid.. they are located in the peoples republic of california and as all of you know, Mercury vapor and even HPS are on the hit list in that state......everything is going to junk LED's GRRRRRRRR!!

I will post some cool pictures of these Line Material "Dusk to Dawners" mounted in all kinds of places, sides of buildings, up in pine trees, on poles, you name it. Most were used to provide private lighting over yards and driveways up in that mountain town.. I have two in my collection, They made them only in Mercury, 100, 175 and 250 watt and with two different patterns to the refractors, "Symetrical distribution" and "Asymetrical distribution" One glass pattern was a uniform ribbed design (symetrical) and the other more rare pattern is a wavy design (Asymetrical) I've not seen on any other luminaire! Also, the glassware was not made by Holophane as most companies used but Pyrex, the same company that made the cool old  kitchen bowels and baking dishes...

Pyrex made all the Unistyle refractors from what I can gather. I've never seen any Dusk-to-Dawners here in Rhode Island. I love the cool look of them though.

     This LM dusk to dawner is my most prized fixture in my collection... I acquired my first one in 1979 ( when I was only 14) the one with the "symetrical" lens.. It was in active service lighting a private bridge area and it was  mounted up high  on an HUGE ponderosa pine tree. It had been bolted to the tree I'm guessing about 10 years earlier as the tree bark had grown around the mounting plate. I had borrowed a neighbors 32 foot aluminum extension ladder, slipped the ladder in the back of my moms Jeep wagoneer with it hanging out the open tailgate, and drove ( that's right, no license only 14 years old)  down the highway about 3 miles to the site where the light was.

     I pulled the ladder out, crossed the bridge, put the ladder up at it's maximum height and proceeded to "acquire" my prize...First priority was to cut the two wires feeding the unit. These LM lights came from the factory with two #10 "XLPE" 7 strand insulated wires, one black and one white, regardless of 120 or 240 volt supply. I could tell from the triplex overhead cable feeding the light it was a 240 volt unit.  My being only 14 and with a great understanding of electricity since birth, I knew that aluminum ladders and live wires didn't mix well but I was very careful and had insulated dikes and cut one wire at a time.  It was quite a job to cut away the over grown tree bark from the base and the fixture was up over my head, I colud barely reach it to get it down. Once I cut the bark away, I used a crescent wrench to back out the "fetter drive" square head bolts from the tree and down I came with my  prize.... I was just amazed at howwell built these units were... The door opens without tools and once dropped down, it automatically disconnects the power and has a quick release pin that allows you to take the whole power assembly down for servicing...

There is a metal Fab shop down the street from my work that has a cobra head that looks like that in their yard

Yeah their are a few in some residential driveways. Their today's successor Cooper Lighting by EATON likely has better products. The ones in residential homes may use this product shown in the photo if they stick with the same brand successor