Patent for a well cleaning machine with spring activated jaws for scoops that pick up mud and leaves from the bottom of wells.

Patent for a new and improved signal valve for boilers. This design "consists in the combination, with a check-valve, of the ordinary construction, which is adapted to operate in connection with an inspirator, injector, or jet-pump, such as are commonly employed for feeding steam-boilers, of a signal-valve which is located above the check-valve, and which signal-valve, when the check-valve ceases to operate, is caused to open by the backward pressure of the steam from the boiler, permitting the escape of said steam, and thereby indicating that the feeder is not operating" (lines 14-26).