Air Compressor I.D.

[68Futura]

Hey folks, hopefully this is an OK place to post this, let me know otherwise... I'm looking for help identifying the manufacture of this compressor. Anyone familiar with this logo? Looks me like M F Co. It looks nearly identical in almost every way to a Brunner No. 105 (last 2 pictures).

Thanks! Nate

 

[dalmatiangirl61]

I see the name Brunner, can't make out the rest. MFG is short for Manufacturing. MF Co would be Manufacturing Company.

 

[68Futura]

I see the name Brunner, can't make out the rest. MFG is short for Manufacturing. MF Co would be Manufacturing Company.

For some reason some pics didn't post. Here is the pump in question, I dont think its MFG, I think it's MFCO. The 2 pics in first post are Brunners. This one appears to be made by another company to Brunner's specs, or made by Brunner for someone else... I can't seem to find any info on this logo in the casting

 

[M.B. Naegle]

The only "MF Co." I can think of is Miller Falls, who made or at least sold lots of different tools and that could have included compressors. They were a company that didn't make everything they sold, but contracted much of it out to other companies who would badge it under the Miller Falls name.

 

[Just a Sparky]

Looks like a Brunner No. 102 to me but hard to gauge the size of it without anything to reference. Later/earlier design perhaps. Different valves and end brackets than I'm used to but otherwise largely the same as mine. Center valves are discharge, outboards nearest discharge pipe are intake and the ones opposite discharge pipe are adjustable relief valves. (Backwards pattern from mine - reliefs nearest discharge in my case.) All of them are simple spring-loaded ball type checks in my case but yours might be different.

Brunner Manufacturing Company of Utica, NY. They made these somewhere in the 1910s-1930s I believe.

Fantastic little low speed pumps. Nominal speed range 300-400 RPM. Max 450 RPM. 2.25-3CFM. Max working pressure 175 PSI. Test pressure 300 PSI. 1/2 HP at 100 PSI. 1/4" pipe thread at the discharge. Bore of 1-13/16", stroke of 2-1/2". Duplex. (Obviously.) Solid bronze connecting rods and oversized bronze bearings. Quiet, charming little pumps. My motor and timing belt are louder than the pump itself. Lots of oil slop to babysit but built to last as long as you keep topping it up. Definitely a keeper if it's not worn out or if it can be fixed up.

[Old forum software rotated the photos despite my every effort to the contrary. Blame the geeks who can't code, not the end user.]

 

[68Futura]

Looks like a Brunner No. 102 to me but hard to gauge the size of it without anything to reference. Later/earlier design perhaps. Different valves and end brackets than I'm used to but otherwise largely the same as mine. Center valves are discharge, outboards nearest discharge pipe are intake and the ones opposite discharge pipe are adjustable relief valves. (Backwards pattern from mine - reliefs nearest discharge in my case.) All of them are simple spring-loaded ball type checks in my case but yours might be different.

Brunner Manufacturing Company of Utica, NY. They made these somewhere in the 1910s-1930s I believe.

Fantastic little low speed pumps. Nominal speed range 300-400 RPM. Max 450 RPM. 2.25-3CFM. Max working pressure 175 PSI. Test pressure 300 PSI. 1/2 HP at 100 PSI. 1/4" pipe thread at the discharge. Bore of 1-13/16", stroke of 2-1/2". Duplex. (Obviously.) Solid bronze connecting rods and oversized bronze bearings. Quiet, charming little pumps. My motor and timing belt are louder than the pump itself. Lots of oil slop to babysit but built to last as long as you keep topping it up. Definitely a keeper if it's not worn out or if it can be fixed up.

[Old forum software rotated the photos despite my every effort to the contrary. Blame the geeks who can't code, not the end user.]

That's a nice restoration you have done! Does that motor have a Brunner data plate on it? I'm very familiar with Brunner, I have lots of them and lots of literature too. Here is the pump in question next to one of my 102s. It has the 2.5x3" bore/stroke like the Brunner 105. That's interesting about the Miller's Falls co, I'll definitely have to dig into that possibility

 

[Just a Sparky]

That's a nice restoration you have done! Does that motor have a Brunner data plate on it?