Re: New ideas for cycling products

On Mon, 05 May 2008 16:03:48 -0500, Ben C <spamspam@[EMAIL PROTECTED]
> wrote:

>On 2008-05-05, bicycle_disciple <1.crazyboy.only@[EMAIL PROTECTED]
> wrote:
>> Part 1 :
http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-products-part-1.html
>> Part 2 :
http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-products-part-2.html
>>
>>
>> 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=bicycle+pump+automatic&as_drrb_is=b&as_minm_is=1&as_miny_is=1860&as_maxm_is=1&as_maxy_is=1901

A trio of hub-driven automatic bicycle tire pumps:

http://www.google.com/patents?id=kDJCAAAAEBAJ&pg=PP1&source=gbs_selected_pages&cad=0_1

http://www.google.com/patents?id=DJhJAAAAEBAJ&pg=PP1&source=gbs_selected_pages&cad=0_1
 http://www.google.com/patents?id=hNIsAAAAEBAJ&jtp=1

A trio of rim-driven automatic bicycle tire pumps:

http://www.google.com/patents?id=snJgAAAAEBAJ&pg=PP1&source=gbs_selected_pages&cad=0_1

http://www.google.com/patents?id=DJhJAAAAEBAJ&pg=PP1&source=gbs_selected_pages&cad=0_1

http://www.google.com/patents?id=4qJRAAAAEBAJ&pg=PP1&source=gbs_selected_pages&cad=0_1

Cheers,

Carl Fogel