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in subjects: "oils"  
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Oil Press Mat.

Description: Patent for a new and improved oil press mat. This design "relates to mats between which cakes of ground cotton or other oil-yielding seed are held while being subjected to the action of the press which separates the oil from the cakes. The invention has for its object to provide certain improvements in the construction of such mats, whereby they are made more efficient and durable than those in general use" (lines 9-17).
Date: May 1, 1883
Creator: Mann, Frederic C. & Schumacher, Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grease-Trap.

Description: Patent for a grease-trap that improves on a patent previously granted to the inventor (No. 506,690). The improvement includes providing "a strainer device for sewer traps, and the like, which will prevent any solid matter passing therethrough, and at the same time capable of being removed for the purpose of cleansing, repairs or other purposes" (lines 22-26).
Date: May 8, 1894
Creator: Heffron, Isaac
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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