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First off I am prepared to get a lot of negative feedback on this design as it is to be made out of wood mostly. Safety is the number 1 concern and I don't want to jump into anything I am not prepared for. I am planning on using a 10 ton pneumatic bottle jack as the power. From my research to the tensile strength of 4x4 pine ( I was not able to find much) told me that a 6 ft long piece has a constant load bearing of just under 1000 lbs when hung from the middle. This design is estimated to be 3 foot wide by 5 ft tall, and there is supposed to be an even distribution of pressure along the beams. Any input is appreciated.
Finally got round to scanning this in. It is a bit big I am afraid, 9.3mb, if anybody wants to reduce it down a bit and repost it be my guest! I did knock it down to 6.7mb but some of the specification numbers became illegible. I did check it was okay with John Nicholson to post this as he is the supplier and restorer of Massey Hammers in the UK now. I will post the hammer installation information on a separate thread. For those using US English, when they refer to Pallets they mean what some of you call Dies... Alan Massey Clearspace Power Hammer Brochure.pdf