Steph Posted Friday at 02:58 AM Report Share Posted Friday at 02:58 AM I am riding my bike home tonight, alongside Lake Michigan. At night, it is like a time machine and I think about the people who lived and worked beside this massive body of water 100 or more years ago. But since I am going by bike I tried to conjure up a circa 1900 version ... and I thought of the circa 1900 ball bearings somewhere in the bike .... And I heard myself say, "Thank you, Mr. Christensen." Because M. F. Christensen revolutionized the manufacture of ball bearings before he applied his genius to the rounding of glass. Okay, not so funny. Lol. But it amused me. 😜 3 3 Link to comment Share on other sites More sharing options...
Fire1981 Posted Saturday at 01:57 AM Report Share Posted Saturday at 01:57 AM That’s really cool Steph that that came to you on a bike ride. Heck ! I never knew the ball bearing MFC history. From steal to glass. How cool is that🔥 RAR 1 Link to comment Share on other sites More sharing options...
Steph Posted Saturday at 05:28 PM Author Report Share Posted Saturday at 05:28 PM 15 hours ago, Fire1981 said: That’s really cool Steph that that came to you on a bike ride. Heck ! I never knew the ball bearing MFC history. From steal to glass. How cool is that🔥 RAR The money he made from the ball bearing patent allowed him to retire from his previous profession and start his marble business. Now that would have been an interesting series of thoughts and discussions ... following how Martin came up with the idea of going into marbles and making the marbles in a way that no one else had ever done before. 1 Link to comment Share on other sites More sharing options...
Fire1981 Posted Saturday at 09:12 PM Report Share Posted Saturday at 09:12 PM I wonder if he was riding his bike when he decided to do this🔥 RAR 1 Link to comment Share on other sites More sharing options...
Shamrock Marbles Posted yesterday at 01:51 AM Report Share Posted yesterday at 01:51 AM On 5/29/2025 at 9:58 PM, Steph said: I am riding my bike home tonight, alongside Lake Michigan. At night, it is like a time machine and I think about the people who lived and worked beside this massive body of water 100 or more years ago. But since I am going by bike I tried to conjure up a circa 1900 version ... and I thought of the circa 1900 ball bearings somewhere in the bike .... And I heard myself say, "Thank you, Mr. Christensen." Because M. F. Christensen revolutionized the manufacture of ball bearings before he applied his genius to the rounding of glass. Okay, not so funny. Lol. But it amused me. 😜 Bearing balls were made long before MFC’s patent. In fact, there was prior art to his patent. US and foreign. He may have sold 80% of his patent rights, but can anyone point to a company that used his device successfully in a commercial adventure? Don’t get me wrong. I like a good story, but the plot has to be rooted in fact. MFC was NOT the inventor of the bearing ball machine. He just had a variation on the theme. 1 Link to comment Share on other sites More sharing options...
Steph Posted 23 hours ago Author Report Share Posted 23 hours ago 2 hours ago, Shamrock Marbles said: Bearing balls were made long before MFC’s patent. In fact, there was prior art to his patent. US and foreign. He may have sold 80% of his patent rights, but can anyone point to a company that used his device successfully in a commercial adventure? Don’t get me wrong. I like a good story, but the plot has to be rooted in fact. MFC was NOT the inventor of the bearing ball machine. He just had a variation on the theme. I know ball bearings existed before his patent. But I thought his process was considered a quantum leap up from the older versions. More reliably round, lower cost, and possibly better physical integrity. Do you have reason to believe that his improvement/variation was not employed in manufacturing ball bearings? 1 Link to comment Share on other sites More sharing options...
Shamrock Marbles Posted 7 hours ago Report Share Posted 7 hours ago 16 hours ago, Steph said: I know ball bearings existed before his patent. But I thought his process was considered a quantum leap up from the older versions. More reliably round, lower cost, and possibly better physical integrity. Do you have reason to believe that his improvement/variation was not employed in manufacturing ball bearings? Let's take a look at Patent US-0632336-A: From a machining point of view, the Inner and Outer Cones would be very expensive to make. How long would they last before having to be replaced? From a production point of view, imagine if there was a jam inside. You would have to completely dismantle the machine to get at the problem. Not all babies are pretty. ** My question still stands: "He may have sold 80% of his patent rights, but can anyone point to a company that used his device successfully in a commercial adventure?" Getting a Patent doesn't mean the idea will become commercially viable. Current viability rate is 2%-4%. Wouldn't you like to know what company or companies employed Patent 632,336? ** Your question: "Do you have reason to believe that his improvement/variation was not employed in manufacturing ball bearings?" Well, that is an interesting question! I came across this... Machinery's Reference Series - Google Books On pages 6 & 7: Things like this create more questions. 😀 1 Link to comment Share on other sites More sharing options...
Ric Posted 7 hours ago Report Share Posted 7 hours ago 23 minutes ago, Shamrock Marbles said: Not all babies are pretty. I like your style, John -nice bit of research here. 1 Link to comment Share on other sites More sharing options...
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