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Fire and Burglar Proof Safe.

Description: Patent for a safe "constructed as to be safe from fire and burglars, and at which the same time may be made lighter, and may be less expensive in manufacture than when made in the usual way." (para. 4). Additionally, safe is airtight and water-proof.
Date: March 18, 1870
Creator: Wilkins, Samuel Adams
Item Type: Refine your search to only Patent

Improvement in Electro-Magnetic Engines.

Description: Patent for "a new practical application of electro-magnetism to machinery for the purpose of moving the same and keeping it in motion, and developing a degree of force which is only limited by the reduced proportion of power applied. The invention consists principally in the transmission of electro-magnetic power through compressed air for motor purposes, and the mechanism and combination of machinery necessary for that purpose." (Lines 12-22) Includes instructions and illustrations.
Date: April 9, 1872
Creator: Thornton, William G.
Item Type: Refine your search to only Patent

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
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