[TheEngineer]

I am an engineer by profession and I am looking for reading that discusses the interaction between the locking piece, spring tension on the bolt lock, recoil spring tension, and buffer selection. I am fascinated by the concept and would like to better understand how altering the locking piece angles and the resistance of the forces effect lock time, rate of fire, chamber pressures at time of disengagement and during extraction as well as performance with ammunition of varying pressures. Also how these components are affecting when barrel length is changed since this too will impact overall pressure within the barrel.

Could anyone recommend some books or technical manuals where I can further investigate these things?

 

[JTinIN]

Full Circle - A Treatise on Roller Locking
by R Blake Stevens
$79.95

Deluxe First Edition 2006
536 pages, 737 illustrations

Collector Grade Publications - Bookshelf #8 - Gun Books - Swedish Mausers, Swedish K98Ks, Great Remington 8, Enfield-SA80 Rifle, Autoloading Rifles
http://www.hkpro.com/forum/hk-clone-talk/135177-history-roller-lock-rifles.html

 

[TheEngineer]

Thank you John

 

[straightgrain]

And the actual patent filings are rather informative, as well...

 

[AGG]

Welcome to the site!!! :wink:

Tony

 

[TheEngineer]

Where would you find the patent filings?

Morgan

 

[AGG]

Is it John or Morgan??? :biggrin:

Tony

 

[straightgrain]

Google does a fine job of trawling patents...

 

[TheEngineer]

Thank you gentlemen. My name is Morgan and it is good to meet you all. I am an engineer by profession and therefore always curious to know the interactions of how things work. I was first fascinated by roller locking systems when I examined an MG-42 that my father had when I was growing up. The HK locking system is much more complex in its application of forces and resistance and really intrigues me.

 

[Lenkers]

Then you will be very interested in these Patents. Both adress the bolt bounce issue.

AUTOMATIC FIREARM BIPARTITE SEMIRIGID BOLT

Automatic firearm

 

[TheEngineer]

Thank you, that is good information.

Morgan

 

[Lenkers]

You can try to find more patents through the espacenet.com search engine. First go to wikipedia or whatever source suits you and find some names (Theodor Koch, Ludwig Vorgrimler, etc.) associated with the gun you want to know more about. Then go to "search", "advanced search" on espacenet.com use the name in question as inventor and "F41" as International Patent Classification number. F41 is the code for guns.