On May 5, 5:58=A0pm, carlfo...@[EMAIL PROTECTED]
wrote:
> On Mon, 05 May 2008 16:03:48 -0500, Ben C <spams...@[EMAIL PROTECTED]
> wrote:
> >On 2008-05-05, bicycle_disciple <1.crazyboy.o...@[EMAIL PROTECTED]
> wrote:
> >> Part 1
:http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-p=
roduct...
> >> Part 2
:http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-p=
roduct...
>
> >> Comments welcome.
>
> >I'm fairly sure from reading Fogel's posts that most of these ideas
will
> >have already been patented before 1890 :)
>
> Dear Ben,
>
> Inventors were pu****ng automatic bicycle pumps furiously before 1900,
> but the idea never caught fire, if you'll pardon a mixed metaphor.
>
> Automatic pumps can be divided into hub and rim driven designs.
>
> Hub-drive pumps were heavier and smoother and didn't interfere with
> patching flats, while rim-drive pumps were simpler, ridiculously
> inconvenient whenever a tube had to be fixed, and just as unsuccessful
> as hub-drive pumps.
>
> The natural latex tubes of that era leaked much faster than modern
> butyl tubes because N2 goes through natural rubber much faster than it
> p***** through synthetic rubber.
>
> But practically everyone just stopped and pumped the leaky tires up
> every few days in the 1890s. The tires were huge, low-pressure balloon
> models, which were easier to pump up by hand than by installing and
> elaborate auto-pumping machinery, fore and aft, which naturally
> produced enormous rolling resistance.
>
> This search will let you browse a few dozen examples:
>
>
http://www.google.com/patents?q=3Dbicycle+pump+automatic&as_drrb_is=3Db&a.=
...
>
> A trio of hub-driven automatic bicycle tire pumps:
>
>
http://www.google.com/patents?id=3DkDJCAAAAEBAJ&pg=3DPP1&source=3Dgbs_sele=
c...
>
>
http://www.google.com/patents?id=3DDJhJAAAAEBAJ&pg=3DPP1&source=3Dgbs_sele=
c...
> =A0http://www.google.com/patents?id=3DhNIsAAAAEBAJ&jtp=3D1
>
> A trio of rim-driven automatic bicycle tire pumps:
>
>
http://www.google.com/patents?id=3DsnJgAAAAEBAJ&pg=3DPP1&source=3Dgbs_sele=
c...
>
>
http://www.google.com/patents?id=3DDJhJAAAAEBAJ&pg=3DPP1&source=3Dgbs_sele=
c...
>
>
http://www.google.com/patents?id=3D4qJRAAAAEBAJ&pg=3DPP1&source=3Dgbs_sele=
c...
>
> Cheers,
>
> Carl Fogel
Carl, is the research sorting into a book ? Your posts appear
representative of a voluminous store of knowledge. Some has time
passed since you began this trip.
I'm simple minded. If the gizmo isn't simple minded like me and
reliable, well made, and easy to use then forgetttaboiutit STEEL IS
REAL. ****MANO DEORE.
there's great beauty in that direction.
My cable is cut in a few minutes and in a few weeks, after I
remanufacture the new van (drive by wire), I'm off to Vancouver via
the front range and Continental Divide on muh Redline 29er MonoDog.
I'll re****t back on the state of the bear.
adios
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!=
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
eyayha !
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