Too true. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Antique Phonograph List Sent: Monday, December 22, 2014 10:56 PM To: Antique Phonograph List Subject: Re: [Phono-L] Feeder rod thread chaser inquiry
The diameter of the usual brass wire in the brush is too large to clean properly. On 12/22/2014 09:27 PM, Antique Phonograph List wrote: > One can use a brass brush too. They are softer. > > Ron L > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Antique Phonograph > List > Sent: Monday, December 22, 2014 7:12 PM > To: Antique Phonograph List > Subject: Re: [Phono-L] Feeder rod thread chaser inquiry > > You do not scrub them with a wire brush. You hold the brush at an > angle to the feed screw and allow it to pull the brush along. The > wires ride in the groove so to speak. Only a complete idiot would > ever use a wire wheel or wire brush to scrub a feed screw. I appear to > have been guilty of assuming that everyone had a grasp on the task art hand. > > Not everyone has a lathe, or mill, or ultrasonic cleaner so the method > I posted was how to get one cleaned up without destroying it or having > equipment that is not normally found in the home shop. > > On 12/22/2014 03:52 PM, Antique Phonograph List wrote: >> Al's method for cleaning a feed screw is good, but I am fortunate to >> have > an ultrasonic cleaner for use in clock repair. I am amazed at how > much junk/gunk comes off one of those feedscrews in my cleaner. It > has the added bonus that there is no contact with the fine threads > such as you would have if you scrub them with a wire wheel or wire brush. >> Dave D >> >> >> On Monday, December 22, 2014 4:18 PM, Antique Phonograph List > <[email protected]> wrote: >> >> >> >> >> >> >> I agree that cleaning can solve a lot of the problem but... >> >> One other thought, I would never use a steel brush to clean the gunk >> out > of the thread grooves since the hardness of the bristles are greater > than the feedscrew metal. You may do more damage than good. My usual > first step is to soak the feedscrew in solvent to clean out the > @%$()*&! 3in1 oil that leaves a hardened wax that attracts dirt and > holds it. After soaking over night I take a stiff toothbrush to clear > the grooves. When the feed skips there are a number of things that > need to be looked at. Check the halfnut pressure and contact. People > making repairs often do not make sure that the halfnut is riding > correctly on the feedscrew. The halfnuts are hardened but some are > found worn down and should be replaced. A wonderful person in the > hobby, Mike Tucker, has made new halfnuts available. If you put 3 of > these on a flat piece of stock with the middle one machined into a > chaser and the other two acting as a leader and follower the results > should >> be satisfactory for mo >> st cases. >> >> I agree about the costs for tooling to be prohibitive except that we >> have > a few in the hobby who are talented machinists and do things for the > challenge of the task. Look at all of the items once thought to be > impossible to find. What comes to mind first are the Automatic > Speakers being reproduced and offered on eBay. If you have an early 'square top' > Standard that you wish to make whole, a $200 reproduction Automatic > makes more sense that putting a $400 original in a $500 machine. > During the last century glass diaphragms were rare and expensive but > now we have a source from Phonatic on eBay. This one item alone has > allowed us to get rid of those incorrect reproduction copper > diaphragms found on so many early Speakers and Reproducers. >> >> Best wishes to all, >> Al >> >> >> >> -----Original Message----- >> From: Antique Phonograph List <[email protected]> >> To: Antique Phonograph List <[email protected]> >> Sent: Sun, Dec 21, 2014 7:55 am >> Subject: Re: [Phono-L] Feeder rod thread chaser inquiry >> >> >> I seriously doubt if anyone is going to manufacture tooling to >> reproduce any of these 1900 vintage threads or the tooling to maybe >> repair > them. >> >> Why? You ask. Because it is impossible to even recover the cost in >> time and money to produce them. >> >> Most of these feed screws and nuts are completely clogged with >> oxidized oil, coal dust and ash. Proper cleaning does wonders. >> >> >> >> >> _______________________________________________ >> Phono-L mailing list >> http://phono-l.org/ >> _______________________________________________ >> Phono-L mailing list >> http://phono-l.org >> >> > _______________________________________________ > Phono-L mailing list > http://phono-l.org > > _______________________________________________ > Phono-L mailing list > http://phono-l.org > > _______________________________________________ Phono-L mailing list http://phono-l.org _______________________________________________ Phono-L mailing list http://phono-l.org
