[TheForge] Interesting air hammer pic

[Steve Smith]

This one looks like the Massey hammer patent, 707246.

I've added below how to view the patent. If you're not interested, it is 
kind of long and tedious. Not required reading. I will say that the 
Massey patent is one of the clearest explanations of a valving scheme 
and how it works for a self contained hammer (thanks Frosty!).

Steve Smith

---------------------
You can get at this patent from the US Patent and Trademark site:
http://www.uspto.gov/
You have to go into patent search by patent number and type in the above 
number.

You could try this direct link (beware of line wrap!):
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=707246.WKU.&OS=PN/707246&RS=PN/707246

Once you get to the patent page, it will say "full text is not 
available". But they do have it in image format; click on the Images 
button at the top. The image comes in TIFF format, you may not have a 
TIFF viewer. I use Alternatiff:
http://www.alternatiff.com/
which is free.


Mike Spencer wrote:
> Interesting pic of a museum shop in Tasmania with an air hammer that
> dwarfs everything else.  Appears to be a self contained but with an
> exposed compressor crank and con rod.  Anybody know what it is?
> 
>    http://www.abc.net.au/northtas/stories/s574218.htm
> 
> - Mike
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