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Rotary Boring-Drill.

Description: Patent for an improved rotary boring drill of the roller type for use in digging wells or mines in earth or rock. These improvements are primarily a means for housing the cutters of a drill in a removable housing that can be quickly removed but also firmly secured against accidental removal during operation.
Date: December 31, 1918
Creator: Hughes, Howard R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Record-Book.

Description: Patent for a record book using primary and secondary indexing tabs for improving classification of documents.
Date: December 17, 1918
Creator: Sumners, Gustavus D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Flexible Metallic Joint

Description: Patent for flexible metallic joint used to make improvements with railroad couplings on trains along with train pipes.
Date: December 19, 1918
Creator: Schulz, Wilhelm
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Compress.

Description: Patent for improvements to compresses. Invention for the receiving and compressing of multiple bales of hay, with further compression into a compact bale of great density. The invention additionally provides for the discharging of the compressed bale. Intent is to decrease volume of hay for economy in shipping.
Date: December 24, 1918
Creator: Paine, Herbert A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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