Author Topic: 8-inch Ball Markings (Read 7481 times)

John D. Bartleson Jr. · « **Reply #15 on:** October 16, 2015, 03:52:51 PM »

Sorry I got in on this one late as was in local hospital. Home now.
When you start to see the same stamps on numerous shells it has to be an inspector's mark. After the shells are cast they are inspected and ring gauged, the core removed and dried.
No reference just comparing to what happens to modern shells.
Regards,
John

John D. Bartleson Jr. · « **Reply #16 on:** October 18, 2015, 11:35:57 AM »

Hey, I am not supposed to be the final word on this post!?)
Regards,
John

divedigger · « **Reply #17 on:** October 18, 2015, 12:49:11 PM »

you are the only one who actually answered Carl's question...

CarlS · « **Reply #18 on:** October 18, 2015, 10:42:03 PM »

The wise one has spoken!

Sorry for delayed response as was traveling. I had assumed at least most of these marks were inspector marks. Is there any knowledge of who they were or where they worked?

Any thoughts on the rows of dots or are those inspector marks too?

divedigger · « **Reply #19 on:** October 20, 2015, 04:09:35 PM »

Did they check hardness on those thing? A hardness gauge leaves small indentions

John D. Bartleson Jr. · « **Reply #20 on:** October 21, 2015, 09:46:14 AM »

Good thought, it is called the Rockwell Test.
John

24thMichigan · « **Reply #21 on:** October 24, 2015, 09:23:34 PM »

Here is another one. "RLN" on 11-inch Dahlgren.

Author Topic: 8-inch Ball Markings (Read 7481 times)

John D. Bartleson Jr.

Re: 8-inch Ball Markings

John D. Bartleson Jr.

Re: 8-inch Ball Markings

divedigger

Re: 8-inch Ball Markings

CarlS

Re: 8-inch Ball Markings

divedigger

Re: 8-inch Ball Markings

John D. Bartleson Jr.

Re: 8-inch Ball Markings

24thMichigan

Re: 8-inch Ball Markings