Pallweber patents
I very much enjoyed Howard Bradley’s article on the Pallweber digital clocks in the December issue. He notes that Josef Pallweber held patents in several countries, but the German patent number is unknown.
It appears that Pallweber actually had six relevant German patents, all DRPs. They are 25042 ‘Anzeigewerk für Uhren’, 39002 ‘Neuerung an Anzeige-Werken für Uhren’, 48142 ‘Uhr mit springenden Zahlen’, 54093 ‘Uhr mit Zahlenwechsel durch Herabfallen doppelseitig bezifferter Täfelchen’, 90089 ‘Uhrwerk mit umlegbaren Blättern’, and 90183, a patent-of-addition to 90089.
The first was applied for on 12th July 1883, with H Pataky in Berlin acting as Pallweber’s German representative. It was officially announced as having been granted on 18th October 1883. The date of protection was effective from 18th May 1883. The second patent, DRP 39002, was officially announced as having been granted on 7th February 1887. The required German agents this time for ‘J Pallweber in Salzburg’ were Lenz et Schmidt in Berlin. Following German practice, the patent was effective as of 13th April 1886, that is, backdated towards the application date.
The remaining four DRPs all have Pallweber with a German address. DRP 48142, effective from 8th September 1888, is for ‘Jos Pallweber in Mannheim’, as was 54093, effective as of 28th February 1890. Yet 90089 and 90183, effective from 30th January 1896 and 28th March 1896 respectively, were for ‘Joseph Pallweber und Adolf Kolbe, Frankfurt AM.’
The patent specifications for all six DRPs, including the horo-nifty drawings, may be downloaded from the present German Patent Office’s site http://depatisnet.dpma.de/ at no cost.
D K Stevenson, USA
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