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Improvement in Insect-Destroying Attachments for Cultivators.

Description: Patent for "a fan or blower conjoined with a box containing any of the various powdered poisons used for destroying vermin which infest growing plants, as cotton, potatoes, &c., operated by a pulley and band, running from the axle of the blower to a wheel on the supporting-axle of the cultivator, seeder, or other machine to which the apparatus may be attached." (Lines 19-27) Includes instructions and illustrations.
Date: December 30, 1873
Creator: Hurd, Charles T.
Item Type: Refine your search to only Patent

Improvement in Combination-Padlocks.

Description: Patent for "a padlock in which the permutation locking device is not permanently connected to the hasp; and said invention consists of a permutation device the fixed ends whereof are provided with sockets to receive the ends of a separate hasp, and be locked therewith by a notched bolt passing through the permutation device and both ends of the hasp, whereby the usual hinged connection of the parts is avoided, and the padlock made more secure and cheaper than when the parts are permanently unit… more
Date: December 23, 1873
Creator: Hall, William N.
Item Type: Refine your search to only Patent

Improvement in Key-Hole Guards.

Description: Patent for "a guard for key-holes of locks, to prevent the use of keys by unauthorized persons, the picking of the lock, and as a means for operating the bolt when fitted for that purpose." (Lines 7-11) Includes instructions and illustrations.
Date: December 23, 1873
Creator: Hall, William N.
Item Type: Refine your search to only Patent

Improvement in Windmills.

Description: Patent for a "self-regulating windmill, so arranged that it will automatically exclude the wind from the wheel during storms and irregular or sudden squalls of wind, while it will equally enlarge the opening through which the wind is admitted to the wheel, whenever the power of the wind is reduced." (Lines 14-20) Includes instructions and illustrations.
Date: December 2, 1873
Creator: Davie, John P. & Morgan, Asa
Item Type: Refine your search to only Patent
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