[TheForge] Power hammer questions - Bob

Sat Apr 12 13:49:03 2003

Bob, I was having this problem too. It kept saying that there was no English
document available. At that point, there is an icon at the top of the page
named either picture or drawing. Click it and the page will reload with the
info you want.

Ian....

----- Original Message -----
From: "Bob Smolen" <[email protected]>
To: <[email protected]>
Sent: Friday, April 11, 2003 11:54 PM
Subject: Re: [TheForge] Power hammer questions/Frosty

> No luck with the patent number. Is there a prefix to 707246?
> Thanks,
> Bob
> ----- Original Message -----
> From: "Jerry Frost" <[email protected]>
> To: <[email protected]>
> Sent: Friday, April 11, 2003 12:33 PM
> Subject: Re: [TheForge] Power hammer questions/Frosty
>
>
> > This is the URL for esp@cenet, the patent server I've figured out how to
> > search.
> >
> > http://ep.espacenet.com/
> >
> > Enter 707246 in the patent number search box and the Massey patent will
> come
> > up. It will also come up at the US patent server but you need the
viewer,
> > it's a free download though. esp@cenet is easy to search but doesn't go
> back
> > very far and unfortunately I haven't figured out how to search the US
> patent
> > server, it goes back to the 1770's or so. Typical of a gvt "service, it
> > wants an exact name, patent number, etc. If I knew those things I
wouldn't
> > need to search. <sigh>
> >
> > Frosty
> > ------------------------
> > If it ain't forged
> > it ain't real.
> > Wrought iron is.
> > The FrostWorks
> >
> > Meadow Lakes, AK.
> >
> >
> > ----- Original Message -----
> > From: "Bob Smolen" <[email protected]>
> > To: <[email protected]>
> > Sent: Thursday, April 10, 2003 10:52 PM
> > Subject: Re: [TheForge] Power hammer questions/Frosty
> >
> >
> > > Frosty,
> > > Thanks for the comments.I now understand your comment re knocking out
> the
> > > end of the cylinder. You were talking about the up stroke.
> > > I like the idea of shortening the stroke to equalize the displacement
> > ratio.
> > > This will cause less side pressure on the power cylinder piston rod,
> less
> > > vibration,less work for the crank and motor.
> > > I should correct my description of the "balance valve"I am using.
These
> > are
> > > flats, not grooves. They are ,as you said, like flats on a wrench.
> > > I will try a check valve next. The valve at the hydraulic shop is
pretty
> > > large and there is a threshold pressure to overcome before it opens. I
> > dont
> > > know if the pressure generated in my set up will overcome that
pressure.
> > Any
> > > homemade check valve or alternative suggestions?
> > > Any way you can e-mail  me a copy of the Massey drawings or can you
> > explain
> > > how to get to the patent?
> > > I have gone to the uspto site and can never figure out how to access
> older
> > > patent drawings.
> > > Thanks again,
> > > Bob S
> > >
> > >
> >
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