Burglar-Alarm. (open access)

Burglar-Alarm.

Patent for an improved burglar alarm to attach to a door or window with a "simple locking device for the hammer" so that the alarm can be transported and reinstalled safely (lines 15-16).
Date: June 3, 1902
Creator: Moody, Winfield H.
System: The Portal to Texas History
Alarm Attachment for Electric Bells. (open access)

Alarm Attachment for Electric Bells.

Patent for "an Alarm Attachment for Electric Bells." "The object in view is the provision of means for facilitating the change of an ordinary door-bell into a continuously-ringing alarm apparatus, while leaving the mechanism free to be changed back into its former operative condition as a door-bell."(Lines 10-15) Including illustrations and instructions.
Date: June 30, 1902
Creator: Blakeney, Henry
System: The Portal to Texas History
End Support for Spiral Conveyers. (open access)

End Support for Spiral Conveyers.

Patent for "spiral conveyers, and more particularly to end supports for the flights or to means for securing the flights to the shafts of the conveyers" (lines 10-13) including illustrations.
Date: June 10, 1902
Creator: Van Arsdell, J. C.
System: The Portal to Texas History