Apparatus for Transmitting Sound-Waves (open access)

Apparatus for Transmitting Sound-Waves

Patent for transmitting sound waves by magnetic induction and to "furnish an apparatus by which these different vibrations can be heard at the receiving end" (lines 20-22). Includes descriptions and illustrations.
Date: October 17, 1911
Creator: Harvey, Fred Brown
Object Type: Patent
System: The Portal to Texas History

[Postcard from L. H. Woods to George Pendexter, October 13, 1910]

Postcard from L. H. Woods to George Pendexter wishing for more cards to be sent showing "auto fire apparatus." The photograph on the reverse side of the card shows a large cloud of smoke coming off of a large building that has been burned. The building on the left has had its roof destroyed and some portions of its wall collapsed; the building in the foreground has had its walls damaged and roof destroyed as well.
Date: October 13, 1910
Creator: Woods, L. H.
Object Type: Postcard
System: The Portal to Texas History