[CW] Lightning Deluxe questions

[Benny Owens via CW]

THE LA HIFF ADJUSTABLE MAIN SPRING WAS PROVIDED ON THE PRESENTATION MODELS
UNTIL THEY JUST STOPPED SEVERAL DECADES AGO.  NOW A PRESENTATION IS JUST A
THIN GOLD PLATE ON A PIECE OF TIN ON TOP OF A DELUXE MODEL.  I THINK THE
LAST LA HIFF ADJ MAINSPRINGS CAME WITH A 833 BROADWAY TAG.  DONT KNOW WHEN
THEY STARTED BUT I HAVE A 54 MODEL WITH IT..

73
BENNY K5KV

On Mon, Dec 15, 2014 at 2:02 PM, Richard Knoppow via CW <cw at mailman.qth.net>
wrote:
>
>
> ----- Original Message ----- From: "Joseph L Pontek Sr via CW" <
> cw at mailman.qth.net>
> To: <cw at mailman.qth.net>
> Sent: Monday, December 15, 2014 6:50 AM
> Subject: Re: [CW] Lightning Deluxe questions
>
>    FWIW I found patent (USP 2187351) issued to John LaHiff and assigned to
> Vibroplex that discloses a jewelled bearing movement for a Vibroplex key.
> The drawing shows a Lightning Bug style key.
>    I believe LaHiff also invented the adjustable main spring Vibroplex
> offered in some Deluxe Original keys. I think I have that patent but the
> Google patent search didn't show it up. I need to try an different search
> string.
>
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
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> =30=
>
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