Rotary Boring-Drill.


Patent for improvements to rotary boring drills.

Physical Description

[1], 2 p. : ill. ; 23 cm.

Creation Information

Hughes, Howard R. May 15, 1915.


This patent is part of the collection entitled: Texas Patents and was provided by the UNT Libraries Government Documents Department to The Portal to Texas History, a digital repository hosted by the UNT Libraries. More information about this patent can be viewed below.


People and organizations associated with either the creation of this patent or its content.


  • Hughes, Howard R. Howard R. Hughes, of Houston, Texas, Assignor to Sharp-Hughes Tool Company, of Houston, Texas, A Corporation of Texas.





Check out our Resources for Educators Site! We've identified this patent as a primary source within our collections. Researchers, educators, and students may find this patent useful in their work.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us


Descriptive information to help identify this patent. Follow the links below to find similar items on the Portal.


  • Main Title: Rotary Boring-Drill.
  • Added Title: Rotary Boring Drill.


Patent for improvements to rotary boring drills.

Physical Description

[1], 2 p. : ill. ; 23 cm.


"Application filed February 24, 1914. Serial No. 320,677."


Library of Congress Subject Headings

University of North Texas Libraries Browse Structure


Item Type


Unique identifying numbers for this patent in the Portal or other systems.


This patent is part of the following collection of related materials.

Texas Patents

United States patents filed by Texas inventors before 1900. A majority of the patents are for agricultural and industrial applications.

What responsibilities do I have when using this patent?


Dates and time periods associated with this patent.

Creation Date

  • May 15, 1915

Accepted Date

  • May 15, 1915

Submitted Date

  • February 24, 1914

Added to The Portal to Texas History

  • June 23, 2017, 11:08 a.m.

Description Last Updated

  • Aug. 10, 2020, 4:08 p.m.

Usage Statistics

When was this patent last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 4


Geographical information about where this patent originated or about its content.

Publication Place

Map Information

  • map marker Place Name coordinates. (May be approximate.)
  • Repositioning map may be required for optimal printing.

Mapped Locations

Interact With This Patent

Here are some suggestions for what to do next.

Start Viewing

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Hughes, Howard R. Rotary Boring-Drill., patent, May 15, 1915; [Washington D.C.]. ( accessed January 27, 2021), University of North Texas Libraries, The Portal to Texas History,; crediting UNT Libraries Government Documents Department.