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P/N 1,360,646 November 30, 1920

30 Nov 2013 6:54 AM | Deleted user

Todays patent was Kapferer’s only American LTA patent.

      “Hitherto, the attachment of the fabrics 7, 9, 11 and 12 around

the cords 17 and 18 has been effected by a lacing comprising  

a cord passing through a suitable number of metal eyelets fixed 

to the boltropes of these fabrics.  Further, the internal suspension

ropes 15 passed through the lower edge by being

threaded through suitable metal parts.

      Owing to this method of assembling, the lacing eyelets and the 

metal parts through which the suspension ropes passed, were in 

contact with the gas in the envelop and were rapidly oxidized,

and they corroded the lacing cords of the edge of the envelop.

      The present invention has now for its object to remedy these 

various drawbacks, and it consists substantially in a system of lacing 

the several fabrics connected to the lower edge of an airship with 

internal suspension, wherein no medal part is in contact with the 

gas in the envelope.”

NOTE: The Astra-Torres, three-lobed blimp was one of the more 

successful non-rigid airship designs in the early 20th century. 

Kapferer’s invention was a solution to what was apparently one 

of its primary failure mechanisms; corrosion caused by exposure 

to hydrogen, or other lifting gases.  N.B. The patent doesn’t

mention any means of sealing the junctions between the various 

envelope sections.

The USPTO might also have assigned:

244/125 (Airship hull construction), and

244/126 (Airship skin construction).

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