Grease or chip and crack

Okay to start off this conversation. I answered your question now you if you would answer mine.( Where did the oil come from?) The mint has a fairly close system now. It is a very simple question with several answers, please increase my knowledge by informing me where the oil is coming from. Okay I get it you're okay with telling people something that is not true on the modern coins. And I assume since you throw in oil with the trash and metal shavings it automatically makes it grease so the statement is true. Since I've been on this site members push for the most correct and accurate information. And you feel it is perfectly okay to tell a new person in collecting, it shows you an error on a 2015 quarter. Let's say it has some of the numbers filled in. that's a grease fell. That is so far from being a correct statement. The correct statement would contamination fill. And if asked about a grease fill the reply would be it generally happens on the older date coins not on the modern coins. Is that not what we try to present two new members. I'm not trying to change anything I'm just trying to be honest with what's actually going on.

 

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Think about it. If the numbers are filled on the coin, that has nothing to do with grease filled dies. That area is a high point on the die and there is nothing to fill. A die chip in that area would result in that area being filled. Don't try to put words in my mouth that I have never said.
I'll let you study the minting process to figure out where the oil comes from. Think about all the machines that are used to create a coin. That's where your answer is.

 

This is only an observation on my part, in viewing the photo of the MRH 150 , the feeding tube is on the top the blank falls down vertically into the dies so any garbage or metal shavings go directly down and can get caught in any lower recesses of the dies. So if what I believe you're saying is now they're being called chips.So you're saying after the coins blanks go through a cleaning solution they go to the rinsing cycle and go to the dryer than transported to the loading station. It is possible this is where a blank may be contaminated but I thought I have read that the loading machine has sealed bearings not requiring to be lubricated. Still see no chances of oil contamination. You have to help me out on this one I'm lost where's the oil come from.

 

A grease is made up of the three following components:

• thickening agent 5% to 20%
• base oils 80% to 95%
• additives 0% to 10%
  The thickening agent - be it a soap or something else - has a tremendous bearing on the grease's performance.

In short, "grease" is anything comprised of an oily substance which may or may not be intended as a lubricant or cooking media.

For example, I can lubricate the certain joints in my cars undercarriage with a lubricating grease

OR

I can add grease to my frying pan to sear my pot roast

OR

I can add fats to my lye and create a soap which could have a greasy feel to it

OR

I can wipe the debris off the underside surface of my cars engine which is a combination of oil seepage, dust, road dirt, road oils, and maybe an animal carcass yet still call it "grease". Especially if it's an older cars with many miles on it.

Machining, of any type, REQUIRES some type of oil. Be it lubricating oil, cooling oil, cutting oil, cleaning oil. It's required.

It's presence in the machining area can and often does compromise the machining processes.

It is there, it exists and as such, can accumulate on coining dies. Whether it originate from a leaky seal, a machining process, or even a cleaning process, it is there.

 

Blanks don't fall into the dies. They are cleaned up and sent to the upsetting mill. I don't think this machine runs clean of oil. At this point the blanks are now called planchets. They fall into a chamber and the dies strike them. Heat and pressure cause whatever is on the surface of the planchet to build up on the dies. This buildup creates what is called a grease filled die coin.

I never said anything like that. See what I posted in the other thread.

 

Sir in the old printing process you are absolutely correct. But with the modernization of the printing process it is my understanding the newer equipment was to not have to have a lot of maintenance such as sealed grease list bearings. And the only possible means of any oil contamination would come from the hydraulic piston seal failure as indicated in the photo I'm going to show you. And on top is the planchet feeding tube. This is a MRH 150 high-speed coinage press. And it looks like the planchet loading tube is Teflon coated and would not require any kind of lubrication at all. YouTube has a video of this bad boy in action Enjoy.

 

Excellent summary on grease. Now I have a trivia question for your you seem quite knowledgeable. For years NASA had a problem with the lubrication of the crawler pins on the platform that takes the rockets out to the launchpad. What kind of lubrication did they end up using for that massive crawler would solved all the pins breakage problems and heat problems.?

 

Did you bother to read what I posted? No you didn't.
Do you even know what an upsetting mill is? No you don't.
What do sealed grease list bearings have to do with this? Nothing.
There is no such thing as a grease list bearing. Maybe greaseless.
Do you understand how piston rings and seals work. No you don't.
Have you ever searched a bag of new Lincoln cents? I'll guess no.
If you had your fingers would have turned black. What is that black from? You will say it's not oil.
I'm finished with taking the time to tell you the truth but I will continue to correct your fiction when you post it. It's clear you are only here to argue. Most folks come here to learn.

 

Let's get real here a bearing that requires no grease is a bearing that has grease and that is sealed which is not required to be greased look it up. It seems you're the one that's lacking in mechanical knowledge which I happen to excel in I make call things do Hickey's thingamajig's what you're talking about something I spent a career doing. Piston at least in car and equipment pistons have rings not bearings And the bearings on a crankshaft at least at each end our regular contain bearings which are Greased by the motor oil. And where the pistons connect to the crankshaft is a magnesium bearing that connects to the piston shaft. And are greased by motor oil. I will say other members that do know exactly what I'm talking about. they just Do not want to get involved in this conversation and I don't blame them one bit And evidently you do not know the working parts of the machine you are talking about. That's why you would make a stupid statement Like you did. This piece of equipment that you're referring to shapes and forms the edges of the planchets. I do not want to insult you but when you try to make someone look stupid you end up doing it to yourself. I believe big dog said it do the research before you speak.PS For the newer members who do not know what this piece of equipment that you're Referring about is I am providing a photo

 

And Sir for those nonexisting bearings that you are claiming I will provide you a photo of a maintenance free bearing And a sealed bearings.

 

You might read what I posted again. You didn't bother to address much of it. There is nothing that you posted that I did not understand 40 years ago.
I'll say this again.
I'm finished with taking the time to tell you the truth but I will continue to correct your fiction when you post it. It's clear you are only here to argue. Most folks come here to learn.

 

Sir you're absolutely correct I also myself came to the site to learn and like you I care about Miss information at times. I think some members sometimes do not read your own statements. To start off with I read members statements two or three times because that's what I have to do. And you're absolutely right about the coinage being dirty not everything gets cleaned up in the wash, I learned a long time ago you do not handle new coins right out of the mint either in bags or roles by your bare hands. So yes you are correct I've never had my hands blackened by new pennies because I do not handling them bare hands. And if you understand this stuff 40 years ago wide you post a stupid comment like you did. Like I said I read it three or four times to make sure what I was reading was as stupid as it sounded. Maybe you ought to read your own post two or three times before you post it.And your own quote from the statement you said I did not read, you stated right off that the planchet does not fall into the press. Then I sentence later you stated the planchet falls into the Chamber to be pressed. See the confusing part here. You're saying it doesn't fall then you're saying it falls. For myself and other members you need to be a little less confusing in your statements. Correction I cannot speak for other members I can only speak for myself. And maybe I'm missing something here. When someone like yourself makes a statement like you did and is full of Miss information, just because I reply to that statement, and try to point out what is incorrect in that statement as I've done many times. You say that I'm just causing trouble...And if you and other members consider that causing trouble then so be it. And to you and all the members, I am human I make mistakes and I'm man enough to admit it. But it seems a small group of members like yourself makes mistakes and someone points them out to you. You label them as a troublemaker. So be it I'm a troublemaker. I will keep making mistakes because I'm human, but I do my best to keep the mistakes down to a minimum. One thing I have learned since I came to the site you definitely need to constantly update your information.And just like you started with this statement maybe you should read your own post again and again and again.

 

Now you are just posting a bunch of lies. It's clear what I said. I'm sorry you can't understand what was said.
I'm going to leave this thread. I hope you find a way to get your problems under control.

 

Well Sir at least I admit I have problems. And doing my best to work on them. When are you going to admit it to yourself.? And I'm sure someone will miss you on my threads I know I won't. And every time I read some of your replies it reminds me of forest Gump (stupid is stupid does).LOL \V/

 

This o15 P has a nice little chip upper leaf left side. And on the bottom of the torch handle another little chip with a squiggly crack tail. All I know you couldn't pay me to touch that torch. Enjoy the photos

 

I would like to add some additional 2015p . Chips and cracks. Please enjoy the photos

 

Just like the add this nice 2016 P enjoy the photos.