What is it?

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infinity

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You can screw it to the structure above a fixture and hang a 3/8" fixture stem on it.
 

Smart $

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I don't believe that particular fitting is intended for running wires through it... at least not using single conductor wiring methods, as there doesn't appear to be any means to make connection to the underside.

IMO that is just a support fitting, assuming it is for conduit to begin with.

An example would be a conduit drop from overhead supply where the conductors terminate or branch off before getting to the floor, such as with a "T" condulet. Conduit continues to the floor where this fitting is used to attach the run to the floor for support.
 

junkhound

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What Golddigger said.

Grandma's house (Grandpa built house in 1907, wired in 1913/14) had a few of those (probably still does, but with NM run thru them now).

Linen or cotton insulated wire was pulled thru the previous gas lighting pipes, obviously the 90 deg nipples were removed. Then you could use the old gas ceiling fixture with the addition of an Edison socket, attach the old vertical gas pipe sans nipple to the crow foot, and run your wire.

Worked for K&T run to the fixture also.

All of Grandma's ceiling fixtures had an on-off pull chain Edison socket, still had the gas jets attached too (but no gas).
Nary a wall switch in Grandma's house until I put a few in for her during the 1950's.
 

don_resqcapt19

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I don't believe that particular fitting is intended for running wires through it... at least not using single conductor wiring methods, as there doesn't appear to be any means to make connection to the underside.
...
That would be installed in the outlet box. The four holes in the fixture hickey line up with the holes in the box and you run the screws through at least two of the holes into the structure to support the hickey and the box. There is room enough for single conductor fixture wires to enter via the notches between the feet of the hickey.
 

infinity

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That would be installed in the outlet box. The four holes in the fixture hickey line up with the holes in the box and you run the screws through at least two of the holes into the structure to support the hickey and the box. There is room enough for single conductor fixture wires to enter via the notches between the feet of the hickey.

I agree typically if you had a row of fixtures one stem, with the crows foot in the box, which would contain the conductors the others would just be for support with or without a box.


We installed many of them a few weeks ago to hang track light stems off of the deck.
 

Smart $

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That would be installed in the outlet box. The four holes in the fixture hickey line up with the holes in the box and you run the screws through at least two of the holes into the structure to support the hickey and the box. There is room enough for single conductor fixture wires to enter via the notches between the feet of the hickey.
So the conduit goes through the box cover?

Where lighting fixtures and such are hung from a box using conduit as its support, I typically see the ball-type swivel covers.
 

PetrosA

Senior Member
Crow's foot sounds right to me too, but it's been a lot of years since I've seen one. I've seen small pancakes mounted to these through the middle KO and a retaining nut, I've seen them installed inside a pancake or 4" octagon and screwed through the back (sometimes hickeys were screwed onto them), and I've seen them screwed directly to joists or porch roof rafters with fixtures hung directly from them w/out a box. I've never seen them mounted to a gas pipe - that would be a hickey, which is similar to a coupling but has slots cut in the side and may have different sized threads on each end. I also remember seeing fixture wire coming out the slots at the bottom (or top, when installed) or it came out the slots of the hickey, if used.
 

rt66electric

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Oklahoma
Stud hickey for Heavy fixtures.

Stud hickey for Heavy fixtures.

A typical modern light fixture still uses a 3/8 hollow allthread stem. similar to most Chain and pendant fixtures , the zip cord goes thru the all-thread.
the hickey stud is bolted to the j-box. There is a niffty connector(like a ridgid collar with holes on the sides for the zip cord to emerge out.) that connects the stud to the allthread. Then the beauty plate slides up and set screws in place
Ah heck with that explaination.. I can GEDC1842.jpg put one together w/scrap parts and take pic
 

don_resqcapt19

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So the conduit goes through the box cover?

Where lighting fixtures and such are hung from a box using conduit as its support, I typically see the ball-type swivel covers.
The 3/8" fixture stem goes on to the fitting in the box and a canopy covers the box.
I have never seen the swivels other than in industrial occupancies.
 

Smart $

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Ohio
The 3/8" fixture stem goes on to the fitting in the box and a canopy covers the box.
I have never seen the swivels other than in industrial occupancies.
Well I haven't done any residential work (other than my own house) in over 25 years... and even then, never saw one of those. Haven't seen 'em used in commercial either.
 

don_resqcapt19

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Well I haven't done any residential work (other than my own house) in over 25 years... and even then, never saw one of those. Haven't seen 'em used in commercial either.
Old commercial is the only place I have ever seen them in use.
 

Jraef

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Old commercial is the only place I have ever seen them in use.
Light industrial too. In the late 70s, I worked for a company in the Bay Area specializing it retrofitting the old Mogul base 200-300W incandescent pendant lamps in warehouses and small machine shops with fluorescent fixtures to save energy and improve lighting. Most of those old hanging pendants were connected to crow foot hubs like this, screwed into an octagon ceiling box.

Like these, although this one is more modern.
Industrial-Light.jpg
By the way, that picture came from a website where they sell them, this one is $1500! Makes me sad to think about how many dumpsters I filled with those things...
 
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