[TheForge] treadle hammer anvils

Fri Jan 10 09:47:01 2003

Without doing engineering calculations, I can't proove it, but I strongly =
suspect there would be a significant difference between the liveliness of =
a treadle-hammer anvil of solid steel and an hollow anvil filled with =
sand.  If NOT, then why not put a 1" thick face plate on a Peter Wrong =
anvil, and fill the thing with sand?  Should work as well as a Peter =
Wright, no?

OTOH, the same can't be said for a treadle hammer ram.  Since the ram =
moves relatively slowly, loose weights in the ram tube work just fine in =
delivering a blow.  It's not like a dead-blow hand hammer (filled with =
lead shot), because that head moves fast and the lead shot fall behind the =
face and catch up on impact, providing a prolonged blow (eliimnating the =
bounce).

Bruce
NJ

>>> [email protected] 01/10/03 09:37AM >>>
That's an interesting point. I hadn't thought about the sand compacting.

Steve

Mike Linn wrote:
>=20
> Once the hammer is used for a while the sand compacts down to a very=20
> solid mass. Granted its not like a solid anvil but the mass in there=20
> does help and it deadens the ring.
>=20
> mike
>=20
>=20
> At 07:54 PM 1/9/03 -0700, you wrote:
>=20
>> I agree, the answer depends on how the hammer is used. Also, if the=20
>> hammer is screwed down to a large concrete foundation, that should =
help.
>>
>> I don't think filling the tube with loose scrap concrete, sand, etc.=20
>> will help. I think the fill would have to be firmly attached to the=20
>> hammer. Just my opinion, no facts to back it up. Maybe you could =
fill=20
>> the base with sand and put some kind of hold down on top of it to=20
>> compress it. I also like Bruce's and Mike's idea of bolt on mass.
>>
>> I suspect most of the pre-made hammers use a hollow anvil so that 1.=20
>> they cost less to make and 2. they cost less shipping.
>>
>> Both of the hammers I've made were solid anvil.
>>
>> Steve Smith
>>
>> GHS wrote:
>>
>>> bob, The "solid "configuration that you
>>> used on mine is good and solid. That
>>> being said, for the most part I do not
>>> hit hard enough to really utilize it,
>>> most of the time.. I use it as a striker
>>> when I am holding tooling. So for me the
>>> tube probably would have been fine. If he is not likely to be=20
>>> stomping as
>>> hard as he can most of the time a tube
>>> will still make a sufficient immovable
>>> object. It might be a bit noisier
>>> though.
>>> Mike Graf
>>> [email protected] wrote:
>>>
>>>> i am building a treadle hammer for a friend. he is not sure whether=20=

>>>> to go with a solid anvil or a tube type. it seems that most=20
>>>> commercially available t hammers have tube anvils with a plate on=20
>>>> top, centaur, kirkpatric (the same?) and the one advertised in the=20
>>>> hammers blow.
>>>>
>>>> are there others that can be bought?
>>>>
>>>> any opinions on the functional difference between solid or tube=20
>>>> anvils? the guy i am making it for is concerned about moving it=20
>>>> (weight). he lives in a flood plain and his shop has 7' of water =
in=20
>>>> it some springs. he usaully loads thing up and moves it to high=20
>>>> ground till the water goes down.
>>>>
>>>> bob s.
>>>>
>>>> _______________________________________________
>>>> http://mailman.qth.net/mailman/listinfo/theforge=20
>>>> theforge mail list group photo site is
>>>> http://www.photoaccess.com=20
>>>> Login:  [email protected]=20
>>>> password:  anvil
>>>> ___________
>>>
>>
>> _______________________________________________
>> http://mailman.qth.net/mailman/listinfo/theforge=20
>> theforge mail list group photo site is
>> http://www.photoaccess.com=20
>> Login:  [email protected]=20
>> password:  anvil
>> ___________
>>
>>
>=20
>         Michael Linn
>       Artist Blacksmith
>      McCalla, Alabama
>       AFC Webmaster
> http://afc.abana-chapter.com=20
>=20
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge=20
> theforge mail list group photo site is
> http://www.photoaccess.com=20
> Login:  [email protected]=20
> password:  anvil
> ___________
>=20
>=20
>=20

_______________________________________________
http://mailman.qth.net/mailman/listinfo/theforge=20
theforge mail list group photo site is
http://www.photoaccess.com=20
Login:  [email protected]=20
password:  anvil
___________