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  #1  
Old 11-14-2013, 02:47 PM
Logdog Logdog is offline
 
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Default Mann Device Sled

Does anyone have a picture of the fixture a Mann Device rides in. I have a very heavy base with two fixtures for securing a tube. I bought it 10 years ago near Aberdeen Proving grounds from a gent who said it was a mann device base. I'll post pictures later
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Old 11-14-2013, 03:34 PM
BubbaTheKid BubbaTheKid is offline
 
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That would be something to see. All I have discovered is the old timie pictures of the V channel sled and the two donuts that clamp to the barrel. Not an actual fxture that the Mann rifles CMP sold would get mounted into.
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  #3  
Old 11-19-2013, 08:28 PM
Blacksmith Blacksmith is offline
 
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If you go to the Springfield Armory web site they have a search page for the archives. Try searches for such terms as Mann, Mann rest, Machine rest, etc. they have some pictures. I have also seen photos in other old publications. Look for ones like Mann's book or books by Julian Hatcher and others.

Here is the Springfield search page:
http://ww3.rediscov.com/spring/spring.htm
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Old 02-21-2014, 07:34 AM
Logdog Logdog is offline
 
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Default Mann device sled

Interesting pictures of Mann devices. The distance between the bosses should tell the tail. Would anyone be willing measue the distances between their barrel bosses? Thanks

Quote:
Originally Posted by Blacksmith View Post
If you go to the Springfield Armory web site they have a search page for the archives. Try searches for such terms as Mann, Mann rest, Machine rest, etc. they have some pictures. I have also seen photos in other old publications. Look for ones like Mann's book or books by Julian Hatcher and others.

Here is the Springfield search page:
http://ww3.rediscov.com/spring/spring.htm
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  #5  
Old 02-21-2014, 05:12 PM
VMFn542bob VMFn542bob is offline
 
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Quote:
Originally Posted by Logdog View Post
Interesting pictures of Mann devices. The distance between the bosses should tell the tail. Would anyone be willing measue the distances between their barrel bosses? Thanks
I don't know what you are referring to as "bosses".
If these are the two "donut" shaped bearings used to support the barrel in the early days of field testing with a "V" block, it would not apply to the MANN Accuracy rifles sold by the CMP. The CMP MANN rifles were supported by the collar at the breech, or the breech end of the barrel, and the barrel floated freely.
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  #6  
Old 02-24-2014, 09:24 AM
Logdog Logdog is offline
 
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Default Mann sled

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Originally Posted by VMFn542bob View Post
I don't know what you are referring to as "bosses".
If these are the two "donut" shaped bearings used to support the barrel in the early days of field testing with a "V" block, it would not apply to the MANN Accuracy rifles sold by the CMP. The CMP MANN rifles were supported by the collar at the breech, or the breech end of the barrel, and the barrel floated freely.
There are two clamps for the lack of a better word where the barrels could be mounted, the sled slides in a large "V' block with spring to either side. I need a general measurement between the collars on a barrel or two to see if it matches up. It all weighes an easy 150 lbs. The pictures of the various bases are very similar, but no pictures are up close.
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Old 02-26-2014, 01:44 PM
BubbaTheKid BubbaTheKid is offline
 
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Did someone slip me goofballs or are you guys talking about (2) separate mouting types? I've seen the V-Channel sled but not the Gibralter Mount and single clamp at the breech with free floating barrel which is what I want to see/know about.
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  #8  
Old 02-27-2014, 03:20 PM
VMFn542bob VMFn542bob is offline
 
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Quote:
Originally Posted by Logdog View Post
Does anyone have a picture of the fixture a Mann Device rides in. I have a very heavy base with two fixtures for securing a tube. I bought it 10 years ago near Aberdeen Proving grounds from a gent who said it was a mann device base. I'll post pictures later
I just did a Google search and found this post on gunboards.com
Might this be you also? Really need some photos.
-
10-25-2010, 06:02 PM #3
JMCJR
From my springfield 03 collecting days, I have a sled that is likely for a Mann device, weighs about 150 pounds and clamps an action to a sliding "sled" mounted on a base. Guy
I purchased it from lived about 30 miles from Aberdeen Proving Grounds.
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Old 02-27-2014, 04:04 PM
NMC_EXP NMC_EXP is offline
 
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Quote:
Originally Posted by Logdog View Post
Does anyone have a picture of the fixture a Mann Device rides in. I have a very heavy base with two fixtures for securing a tube. I bought it 10 years ago near Aberdeen Proving grounds from a gent who said it was a mann device base. I'll post pictures later
Col Brophy's book "The Springfield 1903 Rifles" has a chapter called "Pressure, Velocity and Accuracy Devices". It contains several period photos of machine rests.

On page 223 in a section called "Accuracy Tests" it has a reproduction of a test procedure including the equipment to be used. It states:

Rest "Woodworth: Type -
Mann Type "V" Block**
Rest, Recoil, Accuracy, Cal.30 Ordnance Drawing 49-6-40B

**For cal. .22 cartridges


Further down the procedure says:

"If however the basic Frankford Arsenal rest be available, then only the "V" blocks indicated are need to satisfy the requirement."

Block "V", Recoil, Cal. .30 Assembly Ordnance Drawing D-45100


The way I read it there was a "Woodworth Rest", and a "Frankford Arsenal Rest".

The "V" block fitted the rests interchangably (?). There may have been (2) different "V" blocks: one for .30 cal and one for .22 cal.

You might want to check out the Brophy book and Hatcher's books as well for photos and information.

Also, I believe you can get copies of obsolete Ordnance Drawings from the govt, maybe the National Archives and records Administration?

Good luck

Last edited by NMC_EXP; 02-27-2014 at 04:12 PM.
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  #10  
Old 02-27-2014, 10:18 PM
VMFn542bob VMFn542bob is offline
 
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Thanks for posting that info on Col Brophy's book. A Google search of images brought up those pictures but as you say, the quality of the pictures is too dark to see much detail. Maybe the actual book would be better. Two of the pictures I found and posted several years ago are in that book but (I think) I found them in the Springfield Museum on line. If I can't find Brophy's book among my friends I may buy a copy. Hatcher's Book is already on the internet as a huge PDF. There is not very much in it on the MANN.
Semper Fi - VMF(N)542Bob

Update 2/29/2014, 1:33pm MST
I have borrowed a copy of Lt. Col. Brophy's book, 4th printing. Most of the photos on the section cited by NMC_EXP are devoted to pressure testing and cradled 1903's clamped to a sled. Some pictures do show MANN barrels in a fixture but most of the MANN barrels pictured are not associated with a holding fixture.
Logdog - If you can provide a photo of your sled I can tell you if it is shown in the book. There are many versions of the Mann rifles in the book that I have never seen before.
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Last edited by VMFn542bob; 02-28-2014 at 02:34 PM.
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