Re: [Paddlewise] foot pump??

or you can put a stirrup on the handle
Sid Taylor
-----Original Message-----
From: HTERVORT_at_aol.com <HTERVORT_at_aol.com>
To: jcmartin43_at_radix.net <jcmartin43_at_radix.net>;
PaddleWise_at_lists.intelenet.net <PaddleWise_at_lists.intelenet.net>;
acks_at_teleport.com <acks_at_teleport.com>
Date: Friday, February 26, 1999 7:34 PM
Subject: Re: [Paddlewise] foot pump??


>In a message dated 99-02-24 22:59:35 EST, jcmartin43_at_radix.net writes:
>
><< Another option would be to buy a Whale or Gusher handpump for around
$45,
>find a stainless steel conical compression spring to install inside the
pump
>body (having removed the handle) and adding a pedal of some sort to the
>flange; but having tried this with very limited success, it's not the
greatest
>option. >>
>
>This has come up in previous threads and I have failed to ask what seems an
>obvious question:  Why use a spring return for the diaphragm?  This sounds
to
>be slow acting, a waste of energy, and prone to spring failure.
>
>The pivot pin for the handle on such pumps is located to the side of the
>diaphragm, so why not modify the handle to turn it into a treadle, using
the
>same pivot?  For those of you who may not be familiar with such archaic
>machinery as treadle-operated sewing machines, I am referring to a foot-
>actuated lever which is pivoted at the center rather than at the end (gas
>peddle) so that you can translate pushing motions on each side of the pivot
>into bidirectional motion.
>
>Push on the side of the treadle opposite the diaphragm to expand the
>diaphragm, on the same side to compress.  You could either mount the pump
so
>the treadle is vertical, requiring a heal/toe rocking action of one foot to
>pump, or mount the pump so the treadle is horizontal, allowing you to use
one
>or both feet on alternate sides to rock the treadle.  I could foresee
problems
>with footroom, but it seems a logical and relatively easy solution.
>
>Has anyone tried such a modification?
>
>Just wondering,
>
>Harold
>***************************************************************************
>PaddleWise Paddling Mailing List
>Submissions:     paddlewise_at_lists.intelenet.net
>Subscriptions:   paddlewise-request_at_lists.intelenet.net
>Website:         http://www.gasp-seakayak.net/paddlewise/
>***************************************************************************
>

***************************************************************************
PaddleWise Paddling Mailing List
Submissions:     paddlewise_at_lists.intelenet.net
Subscriptions:   paddlewise-request_at_lists.intelenet.net
Website:         http://www.gasp-seakayak.net/paddlewise/
***************************************************************************