cracker72 Posted November 2, 2014 Share Posted November 2, 2014 You might have seen one on ebay recently, well now it's sat on my trailer awaiting instalation. I've not been able to find any info on them apart from one site by a guy in NZ who has 2cwt model. Quote Link to comment Share on other sites More sharing options...
basher Posted November 2, 2014 Share Posted November 2, 2014 People will be able to give a better response from a picture do you mean this hammer: its quite possible it may go by another brand as well, looks like a fast sheffield type forging hammer. Quote Link to comment Share on other sites More sharing options...
basher Posted November 2, 2014 Share Posted November 2, 2014 whats the weight it looks chunky Quote Link to comment Share on other sites More sharing options...
iron woodrow Posted November 3, 2014 Share Posted November 3, 2014 that anvil is too low... something is wrong. the pass though on the frame should line up with the working height of the pallets Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 3, 2014 Author Share Posted November 3, 2014 Cheers for the photo Basher. It's 1cwt. Yeah the anvil is way too low it was going through the concrete! Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 3, 2014 Author Share Posted November 3, 2014 Took it apart today. All good except the flywheel thrust ring and clutch leather. Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 3, 2014 Author Share Posted November 3, 2014 Took it apart today. All good except the flywheel thrust ring and clutch leather. Quote Link to comment Share on other sites More sharing options...
basher Posted November 4, 2014 Share Posted November 4, 2014 I bet that will be a real thumper . what RPM is it seta at? Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 4, 2014 Author Share Posted November 4, 2014 Says 960 on the motor. Quote Link to comment Share on other sites More sharing options...
HWooldridge Posted November 4, 2014 Share Posted November 4, 2014 Motor RPM doesn't typically equal blows per minute (BPM) but you can do the math on the pulleys and flywheel to determine the final cyclic rate. Quote Link to comment Share on other sites More sharing options...
LastRonin Posted November 5, 2014 Share Posted November 5, 2014 Just guesstimating from the picture... I would say around 300 bpm would be possible... (Please don't tar and feather the ph deprived for hazarding a guess... lol ) Quote Link to comment Share on other sites More sharing options...
John B Posted November 5, 2014 Share Posted November 5, 2014 You might have seen one on ebay recently, well now it's sat on my trailer awaiting instalation. I've not been able to find any info on them apart from one site by a guy in NZ who has 2cwt model. <script type="text/javascript"> // Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 5, 2014 Author Share Posted November 5, 2014 Yeah kind of need to measure the pulley sizes to accurately determine bpm. Quote Link to comment Share on other sites More sharing options...
John B Posted November 5, 2014 Share Posted November 5, 2014 Seems my earlier attempt didn't post properly. I used to live next to the Hattersley and Davidson works which also included Robert Sorby and Kangeroo tools. Primarily H & D were engineers, Brassfounders and pump manufacturers. Sorby's and Kangaroo brands being woodworking, edge tools, gardening tools and they also made some of the best ice skates, supplying them to the Olympic ice skaters, including the Russians who at that time were still behind the iron curtain. The powerhammers that were in use were mainly Patterson, and I wonder why the one you have is identifiable as an H&D, it was common practice for machine tools to be manufactured and sold under different names, which were usually done by attaching a brass plaque with machine id numbers on and other relevant information which can mislead from original manufacturer, they could also have been made under licence. They operated at about 600+BPM Would like to see a video of this when you get it running. There used to be some of the Paterson hammers at the edge tool makers just outside Exeter around Ide, name escapes me at the moment, but they also took on the old Finch Foundry tooling. Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 5, 2014 Author Share Posted November 5, 2014 Thanks for that John. Morris of Dunsford? Measured the pitch diameter today, 400 and a bit bpm I reckon. Quote Link to comment Share on other sites More sharing options...
HWooldridge Posted November 5, 2014 Share Posted November 5, 2014 400-600 BPM is pretty fast - would make it tough to do quarter flips on stock. Quote Link to comment Share on other sites More sharing options...
cracker72 Posted November 6, 2014 Author Share Posted November 6, 2014 400-600 BPM is pretty fast - would make it tough to do quarter flips on stock. way too fast. It's theoretical because when I used it it wasn't beating at anything like that. Quote Link to comment Share on other sites More sharing options...
John B Posted November 6, 2014 Share Posted November 6, 2014 Morris of Dunsford are the people, thanks for that. The 600+BPM machines were primarily used for rapidly drawing blades down and no quarter flips being used. It's over 60 years now since I saw the works so some details a little hazy, I was only a tacker at the time so was somewhat in awe of these beasties. Quote Link to comment Share on other sites More sharing options...
cracker72 Posted April 18, 2015 Author Share Posted April 18, 2015 Finally got it set up. Had the flywheel bored and sleeved and thrust washer machined. So here's the vid for you John B. Ph1.3gp Quote Link to comment Share on other sites More sharing options...
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