[78-L] Pressed in WHAT material...

[david.diehl at hensteeth.com]

I seem to remember that it was the royal blue Columbias that used preformed sheets.
...but I'm retired too.
DJD 

Visit the Blue Pages: the Encyclopedic Guide to 78 RPM Party Records
http://www.hensteeth.com
-----Original Message-----
From: Michael Biel [mailto:mbiel at mbiel.com]
Sent: Tuesday, November 17, 2009 10:31 PM
To: '78-L Mail List'
Subject: Re: [78-L] Pressed in WHAT material...

WOW! Although Allen Koenigsburg is going to say that we should havefound it in "The Patent History of the Phonograph" several decades ago,you have discovered THE patent that completely describes the MarconiVelvet-Tone record. And since Thomas MacDonald takes SOLE credit forinventing it, what the hell did Marconi do except have his picture onthe label??????????????And read the description of how the record is pressed -- from two sheetsof celluloid and a cardboard sheet. It is not made from two blobs ofstuff on the cardboard, but two already formed and sized SHEETS.I am still looking for the film I saw which shows how Columbia pressedlaminated records in the 30s or 40s which also shows that the surfaceswere SHEETS, and that the core was a blob. All of us had thought itwould be the other way around, that there was a prepared "powder blank"of a core and paper that would have a blob of shellac with labels placedon each side and put into the press that way.This might also mean that the very early Berliner celluloid discs mightalso have been pressed into sheets rather than blobs. Did he likewiselater press into sheets of shellac???Mike Biel mbiel at mbiel.com
 -------- Original Message --------From: "Martha" > Celluloid it may be, and perhaps this very patent, which even> shows the same pattern on the reverse:> http://tinyurl.com/yggel26> Keep away from open flame !----- Original Message ----- From: "Michael Biel" >> Perhaps Don meant blue label? Assuming that we are talking about the> 1906 Marconi Velvet-Tone Columbia pressings, the surfaces are indeed> black and with the exception of Martha's Spanish discs were> single-sided, with the back side having a large info label surrounded by> a cross-hatch pattern that probably was meant to grab onto the turntable> felt. They obviously differ from regular Columbia laminated pressings> in that they are only 3-ply rather than 5 ply, not having the thick> center core and only one paper layer instead of two. But I don't think> the surfaces are the same material as the regular laminated surfaces.> Considering the edge chips and flakes on regular laminated discs, I> don't think the regular surfaces are as soft and pliable as the> Marconi's. They could be celluloid or a mixture of celluloid and> shellac without filler.> _______________________________________________78-L mailing list78-L at klickitat.78online.comhttp://klickitat.78online.com/mailman/listinfo/78-l