Thomas Dean Posted May 16, 2008 Share Posted May 16, 2008 Here is the original drawings and patent # with the inventor's description. CLUTCHING DEVICE FOR FORGES - Google Patents I hope to finish 'restoring' it this weekend. Will sandblast, paint, and line the pan with a refractory. I do not have the hood as shown and the lever is mounted close to the pan. All else is as drawn. I think this is SO COOL!! Plan to post before and after pictures soon. Quote Link to comment Share on other sites More sharing options...
Frosty Posted May 16, 2008 Share Posted May 16, 2008 Don't you just love a patent server? Are you going to print it out and hang it somewhere? I don't know how many times I've found the device or mechanism I needed by searching them. Now Google has made it reasonable and easy to do. Congratulations Thomas. Frosty Quote Link to comment Share on other sites More sharing options...
Thomas Dean Posted May 16, 2008 Author Share Posted May 16, 2008 I tried to print it out last night but it only want to print 1/2 page. I will have to wait until I can get to a real computer.... Quote Link to comment Share on other sites More sharing options...
Valentin Posted May 16, 2008 Share Posted May 16, 2008 Nice set of drawings ! Quote Link to comment Share on other sites More sharing options...
nett Posted May 16, 2008 Share Posted May 16, 2008 It took me a while to figure out what the heck a clutching device was then it hit me square in the face, or in this case, it wouldn't hit me in the face if I had the patented clutching device. I look forward to the photographs. Quote Link to comment Share on other sites More sharing options...
larrynjr Posted May 16, 2008 Share Posted May 16, 2008 I'm a bit thick in the head today, what does it do? I was trying to figure it out just from the pictures, my brain doesn't want to deal with reading the technical description right now. Quote Link to comment Share on other sites More sharing options...
nett Posted May 17, 2008 Share Posted May 17, 2008 Larry, think of it is as a freewheel on a racing bicycle. Flywheel/pulley wheel "C" (rear wheel on bicycle) can spin on momentum even after if the lever "M" (pedals) is stopped. The clutch is the freewheel hub. That's the best I can do with my pea-brain on a Friday afternoon with a triple digit temperature outside. Quote Link to comment Share on other sites More sharing options...
larrynjr Posted May 17, 2008 Share Posted May 17, 2008 cool, that makes sense now. It's not triple digit's here but getting close today. Quote Link to comment Share on other sites More sharing options...
matt87 Posted May 17, 2008 Share Posted May 17, 2008 Larry, just to expand nett's explanation, the actual clutch mechanism is a pair of opposed direction, high single pitch screws that mate together when rotated in one direction, and part in the opposite direction. The screw attached to the lever is sprung to push onto the other, which is at a fixed depth but free to rotate (and thus transmit power furthre down the drive train). When the operator moves the lever down, the screws engage and the power is transmitted to the flywheel and the blower. Whenthe downwards movement of the lever falls below that of the second screw, the first screw is forced away, and the flywheel is allowed to continue turning as it will. The lever can of course be raised up again, also not affecting the speed of the flywheel. A very simple and effective solution. Quote Link to comment Share on other sites More sharing options...
Frosty Posted May 17, 2008 Share Posted May 17, 2008 It's similar to the Bendix clutch in a starter. Frosty Quote Link to comment Share on other sites More sharing options...
nett Posted May 17, 2008 Share Posted May 17, 2008 Yes, like a Bendix clutch in a starter. My first encounter with a Bendix was on my bicycle, it had a Bendix coaster brake. New Departure and Bendix were the names back in my days, Bendix had the brake shoes while New Departure used the slip washers. We used to spit on the hubs after a run down the mountain road, it would sizzle. Cheap entertainment. Quote Link to comment Share on other sites More sharing options...
keykeeper Posted May 18, 2008 Share Posted May 18, 2008 Wow, The Google patent search utility is AWESOME. So much easier to use than the USPTO site. I just blew 45 minutes playing around with it. Found my firepot patent, then looked up the inventor name, there is so much to research using this. Thanks Thomas for letting me know about it with your post. Can't wait to get some sleep and play with it more later. aaron c. Quote Link to comment Share on other sites More sharing options...
Tom Lumpkins Posted May 18, 2008 Share Posted May 18, 2008 I'm looking forward to seeing some actualy picture's of it, and seeing some of it in action...Looks good...Tom Quote Link to comment Share on other sites More sharing options...
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