PDA

View Full Version : Delayed Gloat



Dr Stan
05-26-2012, 08:13 PM
A couple of years ago I picked up a mechanical press at an estate sale for $100. Could not have bought the steel for that price. It's been sitting around waiting to be worked on as it did not have any easy means to raise & lower the horizontal cross member except by brute force. :(

I had a winch left over from a previous project so I bought some overhead door pulleys and some 3/16" wire cable and went to work. Now its quite easy to raise & lower.

I had also picked up this arbor press so I stole the idea from a previous post to hang it on the side of my large press. I also bought it for little of nothing as it was missing the round plate with the slots. Made one from a piece of plate I found lying along the side of the road one day. :)

The arbor press is a Greenerd #2 which I assume means it has a 2 ton capacity. Not familiar with this brand, but it has been chrome plated at some point and has a 3/8" reamed hole in the end of the ram with a drilled & tapped cross hole for a set screw. The previous owner used it to extract primer caps from used rounds. So I made a consumable end for the ram that can be dressed up/replaced as necessary.

The mechanical press is a bit of a mystery. It is certainly US made as it was fabricated from Birmingham Steel. The only markings (other than Birmingham) are the numbers "20-7" cast into the ratchet mechanism. It's a lot slower than hydraulic, but boy can it create some force! If anyone can ID this press I'd appreciate knowing who made it, where, and possibly its vintage.

Thanks,

Stan

http://i1016.photobucket.com/albums/af285/drstan/press/DSCN0927.jpg

http://i1016.photobucket.com/albums/af285/drstan/press/DSCN0926.jpg

And oh, BTW that is a '68 Mustang coupe upside down on a rotisserie in the background.

sasquatch
05-26-2012, 08:18 PM
Can't help you with any ID on the presses, but nice set up.

uncle pete
05-26-2012, 09:46 PM
I can't help you on the I.D's either. But just due to various jobs, I've seen more than a few higher powered presses. It's obviously up to you, But every single one of those H type presses had in one way or another a expanded metal cage that could be swung or lowered into place to contain any of the larger shrapnel, Or loose and or incorrectly aligned parts blowing apart or shooting out from under the the press ram under the high pressures.

And no I'm not a safety fanatic. I just thought I'd mention it.

Pete

Dr Stan
05-26-2012, 11:12 PM
every single one of those H type presses had in one way or another a expanded metal cage that could be swung or lowered into place to contain any of the larger shrapnel, Or loose and or incorrectly aligned parts blowing apart or shooting out from under the the press ram under the high pressures.

Good idea. I've got some expanded metal I could use.

flylo
05-26-2012, 11:25 PM
I would guess the 20-7 might mean 20 ton, 7" stroke, just a guess. Looks good! By the way YOU SUCK! Now it's official!:D

oldtiffie
05-27-2012, 12:24 AM
I have a Chinese 3 ton arbor press with a square ram.

Most of these presses - USA included - seem to have a similar profile.

This may help in that regard:
https://www.machineryhouse.com.au/Arbor-Press

I soon found out that I needed to anchor the press to the shop floor even with a smallish keyway.

wierdscience
05-27-2012, 10:32 AM
Greenerd is still around AFAIK-

http://www.greenerd.com/arborpress-detail.aspx?pressid=5

It's also possible that the H-frame is a Greenerd product as well.We have a 5ton ratchet model at work,very good presses.

Oh,ya you suck!:)

dvo
10-27-2012, 12:38 AM
I know the thread is old but any chance of some pics of the pulley and rigging? Looking to do the same to my press but can't seem to wrap my brain around on how the cable and pulley are rigged to keep the table level.

macona
10-27-2012, 01:18 AM
ImPRESSive...

-Jerry

Dr Stan
10-28-2012, 09:18 PM
Here are some more images that show the way I mounted the winch & cable. I used the turnbuckle to adjust the two cables so the horizontal channel raises & lowers fairly evenly.

http://i1016.photobucket.com/albums/af285/drstan/press/DSCN0978.jpg

http://i1016.photobucket.com/albums/af285/drstan/press/DSCN0977.jpg

http://i1016.photobucket.com/albums/af285/drstan/press/DSCN0976.jpg

sasquatch
10-28-2012, 09:34 PM
Nice work Dr Stan, the older we get, the smarter we need to work!

Dr Stan
10-28-2012, 09:38 PM
Nice work Dr Stan, the older we get, the smarter we need to work!

Amen to that. BTW, old is ones current age + 20 years. :)

dvo
10-28-2012, 09:42 PM
Ah, "two" cables. No wonder I was confused. Thinking one cable the whole time. Time to get started on mine.

Mucho thanks for the pics!

Dr Stan
10-28-2012, 11:13 PM
BTW, the pulleys are replacement parts for the cable guides on an overhead door. Fairly cheap and a lot quicker than making them.

mark61
10-29-2012, 08:09 AM
You CAN use 1 cable! Mount winch at top inside of frame. Cable goes down to table on same side, around pulley and back up to pully at top ot frame beside or behind the winch. Cross top peice to far side around pulley and down to pulley mounted on table then bring cable back up and afix it to top of frame on that same side.


I tryed to make a sketch but auto correct eliminates empty spaces between lines!!! Think winch "U" shape --across top of frame and another "U" shape on far side with cable end tied to top of frame on the outside of the right hand "U".

tdmidget
10-29-2012, 12:00 PM
Your Crosby clips are on backwards.

michigan doug
10-29-2012, 06:03 PM
He's right you know.

The old riggers used to have a saying, "Never put a saddle on a dead horse." meaning, the saddle goes on the live line, not the short dead line after it turns the corner. Holds better that way.

Your chances of this current rig failing are zero, but you might have to rig something serious next time...

Nice press(es) by the way. Can't find a good deal on a press to save my backside. But, I don't look 24 hours a day like our famous Mr FlyLow either.

finest regards to all,

doug

flylo
10-29-2012, 06:40 PM
Arbor , H frame or A frame. Manual, Hydraulic or elect/hyd, sng or 3 phase, what tonnage? Let me know & I'll take care of that for you. :rolleyes:

Tamper84
10-29-2012, 07:23 PM
Nice presses. I have never seen a manual press like that. (not the arbor I have used them before). Any chance of pictures up close of the "head" or what ever you want to call it?

Thanks,
Chris

dvo
10-29-2012, 07:33 PM
You CAN use 1 cable! Mount winch at top inside of frame. Cable goes down to table on same side, around pulley and back up to pully at top ot frame beside or behind the winch. Cross top peice to far side around pulley and down to pulley mounted on table then bring cable back up and afix it to top of frame on that same side.


I tryed to make a sketch but auto correct eliminates empty spaces between lines!!! Think winch "U" shape --across top of frame and another "U" shape on far side with cable end tied to top of frame on the outside of the right hand "U".

Thanks, it became clearer once I got started and came up with a rigging just as you describe except that I was going to end the cable at the table instead of going around a pulley on the table and hook into the frame. Is this wrong?

cameron
10-29-2012, 08:30 PM
Thanks, it became clearer once I got started and came up with a rigging just as you describe except that I was going to end the cable at the table instead of going around a pulley on the table and hook into the frame. Is this wrong?

Yes, the cable would try to pull the table up at twice the rate on one side and you'd get a jam up.


With the rigging proposed by mark61, there is no positive levelling of the table by the cables, as there is with Dr Stan's method, though it probably doesn't matter much.

Dr Stan
10-29-2012, 09:08 PM
Nice presses. I have never seen a manual press like that. (not the arbor I have used them before). Any chance of pictures up close of the "head" or what ever you want to call it?

Thanks,
Chris

Sure, but not before tomorrow. As to the way the cable is strung I simply copied a design I've seen used commercially.