Photo Index - Unknown Manufacturer - Trip/Power Hammer

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Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Other
Machine Size:	100# ? (hammer size)
Submitted By:	Kirk Decker

Machine Specifications
Description/Model:	Trip/Power Hammer
Date of Manufacturer:	190??
Serial Number:	None
Last Updated	12/30/2014 6:33:25 PM

Comments:

I only do a little diddling with blacksmithing using my anvil 115# anvil and makeshift forge but I came across a deal I couldnt pass up and purchased a power hammer. The PO who was moving and couldnt take it with him. He picked it up from a machine surplus store (a few years ago) who told him that it came out of a steel mill/shop in Pittsburgh PA. The PO was happy to sell it for cheap as he was on a tight time line and didnt want the scrap man to take it. I have been doing much reading ( old books and at the many blacksmithing sites including this one) about power hammer and it is becomming somewhat more familiar to me. I hope to get it up in running in a year a two but right now it is in storage .

The hammer has no obvious identification. It seems to be shop made while using someone elses OEM castings (for the actual hammer and mechanism linkages). What is cool is that an entire set of spare castings and shims came with the machine for rebuiding of the "hammer guide". It seems to be a Dupont Fairbanks linkage which uses a slip/slack belt (leather on mine) clutch (as opposed to the mechanincal clutches found hammers such as the Little Giant). . I am not sure exactly how the motor was used to drive this hammer (it may have been a direct drive from the motor pulley to the the larger hammer drive pulley...there are holes on the side of the machine that may match with mounting holes on the motor...haven't checked if they matched yet) or it may have had a back shaft with another reduction. (I haven't measured the pulley to get the final drive. From what I have researched so far is that you want a final drive to get you to a BPM (blows per minute) of 150-230 for a hammer this size (I'm guessing mine is somewhere between 100#-150# size). I also have read that many owners of these types of hammers with the slip belt perfer a back shaft set up rather than a direct motor drive as it allows for more percise control of the hammer. Also, the PO included some "extra??" parts with the hammer which no one is sure if the went with the hammer. These include various brakets (motor mounting???), parts for a line shaft (again, was this originally used to drive this hammer???), another linkgage (maybe another part for "trip pedal"...or for a brake which my machine does not possess at this time). Some parts that did come with the hammer and do go with it include anvils/hammers and a very large set of tongs. Below are some pics.

Photo 1:

Comments: Trip Hammer
Source: Previous Owner

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Photo 2:

Comments: "fairbanks" style linkage
Source: Me

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Photo 3:

Comments: Side View
Source: Me

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Photo 4:

Comments: "Buisness" end
Source: Me

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Photo 5:

Comments: Monster GE 5hp single phase Repulsion-Induction motor
Source: Me

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Photo 6:

Comments: Some of the extras that came with the hammer.
Source: ME

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