Precision Grinding of Diallyl Phthalate Thermosetting Plastic (open access)

Precision Grinding of Diallyl Phthalate Thermosetting Plastic

A semiautomatic grinder was designed and built at Mound Laboratory to grind molded plastic detonator heads to close tolerances. It uses a vertical spindle, dry grinding technique to decrease grinding time of some diallyl phthalate (DAP) detonator heads with wire inserts and to eliminate the problem of error in repeatability which is characteristic of the manual grinding process. The semiautomatic grinder is essentially air-operated with electrical control and was primarily designed using standard components for ease of manufacture and maintenance. As development of the semiautomatic grinder progressed, DAP detonator heads with wire inserts ground using the manual surface grinder were evaluated along with the same type of detonator heads ground using the semiautomatiac grinder. Also, a time study was conducted to determine the cost savings of grinding miniature DAP detonator heads with wire inserts using the semiautomatic grinder. Inspection and analytical results and radiographic sections of ground detonator head surfaces from each grinding technique indicated that the semiautomatic grinding technique provides acceptable ground DAP detonator heads with wire inserts at a cost savings of 83.5% and a significant reduction in grinding time.
Date: April 4, 1969
Creator: Weeks, J. E. & Osborne, J. M.
Object Type: Report
System: The UNT Digital Library
Computers for Congress (open access)

Computers for Congress

This report covers the role in which computers play in western civilization.
Date: June 4, 1969
Creator: Chartrand, Robert L.
Object Type: Report
System: The UNT Digital Library
[Donald Chipman Audio: Curt Max Mosher and Lee Roy Jordan] transcript

[Donald Chipman Audio: Curt Max Mosher and Lee Roy Jordan]

Audio recording of Donald E. Chipman interviewing with Curt Mosher and L. Jordan. In 1967, Mosher was hired as Director of Public Relations for the Dallas Cowboys. Mosher passed away on July 13, 2015.
Date: June 4, 1969
Creator: Chipman, Donald E.
Object Type: Sound
System: The UNT Digital Library
Oklahoma City Times (Oklahoma City, Okla.), Vol. 80, No. 11, Ed. 3 Tuesday, March 4, 1969 (open access)

Oklahoma City Times (Oklahoma City, Okla.), Vol. 80, No. 11, Ed. 3 Tuesday, March 4, 1969

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: March 4, 1969
Creator: Gaylord, E. K.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Dublin Progress (Dublin, Tex.), Vol. 82, No. 14, Ed. 1 Thursday, September 4, 1969 (open access)

The Dublin Progress (Dublin, Tex.), Vol. 82, No. 14, Ed. 1 Thursday, September 4, 1969

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date: September 4, 1969
Creator: Hicks, Linda
Object Type: Newspaper
System: The Portal to Texas History
The Prospector (El Paso, Tex.), Vol. 35, No. 31, Ed. 1 Tuesday, February 4, 1969 (open access)

The Prospector (El Paso, Tex.), Vol. 35, No. 31, Ed. 1 Tuesday, February 4, 1969

Semiweekly student newspaper from the University of Texas at El Paso that includes campus news and information along with advertising.
Date: February 4, 1969
Creator: University of Texas at El Paso
Object Type: Newspaper
System: The Portal to Texas History
The Hondo Anvil Herald (Hondo, Tex.), Vol. 82, No. 36, Ed. 1 Thursday, September 4, 1969 (open access)

The Hondo Anvil Herald (Hondo, Tex.), Vol. 82, No. 36, Ed. 1 Thursday, September 4, 1969

Weekly newspaper from Hondo, Texas that includes local, state, and national news along with extensive advertising.
Date: September 4, 1969
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Chickasha Daily Express (Chickasha, Okla.), Vol. 77, No. 142, Ed. 1 Monday, August 4, 1969 (open access)

The Chickasha Daily Express (Chickasha, Okla.), Vol. 77, No. 142, Ed. 1 Monday, August 4, 1969

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: August 4, 1969
Creator: Drew, Charles C.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Oklahoma City Times (Oklahoma City, Okla.), Vol. 79, No. 301, Ed. 3 Tuesday, February 4, 1969 (open access)

Oklahoma City Times (Oklahoma City, Okla.), Vol. 79, No. 301, Ed. 3 Tuesday, February 4, 1969

Daily newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: February 4, 1969
Creator: Gaylord, E. K.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 76, No. 157, Ed. 1 Monday, August 4, 1969 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 76, No. 157, Ed. 1 Monday, August 4, 1969

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: August 4, 1969
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 259, Ed. 1 Tuesday, November 4, 1969 (open access)

The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 259, Ed. 1 Tuesday, November 4, 1969

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: November 4, 1969
Creator: Hale, James H. & Goforth, Don
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Pharr Press (Pharr, Tex.), Vol. 36, No. 36, Ed. 1 Thursday, September 4, 1969 (open access)

The Pharr Press (Pharr, Tex.), Vol. 36, No. 36, Ed. 1 Thursday, September 4, 1969

Weekly newspaper from Pharr, Texas that includes local, state, and national news along with advertising.
Date: September 4, 1969
Creator: Glover, Lloyd H.
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 47, No. 143, Ed. 1 Tuesday, March 4, 1969 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 47, No. 143, Ed. 1 Tuesday, March 4, 1969

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 4, 1969
Creator: Hartman, Fred
Object Type: Newspaper
System: The Portal to Texas History
The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 103, Ed. 1 Sunday, May 4, 1969 (open access)

The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 103, Ed. 1 Sunday, May 4, 1969

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: May 4, 1969
Creator: Ferguson, George W. & Hale, James H.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Cuero Record (Cuero, Tex.), Vol. 75, No. 296, Ed. 1 Thursday, December 4, 1969 (open access)

The Cuero Record (Cuero, Tex.), Vol. 75, No. 296, Ed. 1 Thursday, December 4, 1969

Daily newspaper from Cuero, Texas that includes local, state and national news along with advertising.
Date: December 4, 1969
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 48, No. 41, Ed. 1 Tuesday, November 4, 1969 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 48, No. 41, Ed. 1 Tuesday, November 4, 1969

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: November 4, 1969
Creator: Hartman, Fred
Object Type: Newspaper
System: The Portal to Texas History
The Oklahoma Eagle (Tulsa, Okla.), Vol. 52, No. 12, Ed. 1 Thursday, September 4, 1969 (open access)

The Oklahoma Eagle (Tulsa, Okla.), Vol. 52, No. 12, Ed. 1 Thursday, September 4, 1969

Weekly newspaper from Tulsa, Oklahoma that includes local, state, and national news along with advertising.
Date: September 4, 1969
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 76, No. 241, Ed. 1 Tuesday, November 4, 1969 (open access)

The Perry Daily Journal (Perry, Okla.), Vol. 76, No. 241, Ed. 1 Tuesday, November 4, 1969

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: November 4, 1969
Creator: Watson, Milo W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Lawton Constitution (Lawton, Okla.), Vol. 67, No. 132, Ed. 1 Tuesday, February 4, 1969 (open access)

The Lawton Constitution (Lawton, Okla.), Vol. 67, No. 132, Ed. 1 Tuesday, February 4, 1969

Daily newspaper from Lawton, Oklahoma that includes local, state, and national news along with advertising.
Date: February 4, 1969
Creator: Bentley, Bill F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oklahoma Eagle (Tulsa, Okla.), Vol. 52, No. 25, Ed. 1 Thursday, December 4, 1969 (open access)

The Oklahoma Eagle (Tulsa, Okla.), Vol. 52, No. 25, Ed. 1 Thursday, December 4, 1969

Weekly newspaper from Tulsa, Oklahoma that includes local, state, and national news along with advertising.
Date: December 4, 1969
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Lawton Constitution (Lawton, Okla.), Vol. 68, No. 67, Ed. 1 Tuesday, November 4, 1969 (open access)

The Lawton Constitution (Lawton, Okla.), Vol. 68, No. 67, Ed. 1 Tuesday, November 4, 1969

Daily newspaper from Lawton, Oklahoma that includes local, state, and national news along with advertising.
Date: November 4, 1969
Creator: Bentley, Bill F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 182, Ed. 1 Monday, August 4, 1969 (open access)

The Altus Times-Democrat (Altus, Okla.), Vol. 43, No. 182, Ed. 1 Monday, August 4, 1969

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 4, 1969
Creator: Ferguson, George W. & Hale, James H.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Bellaire & Southwestern Texan (Bellaire, Tex.), Vol. 16, No. 16, Ed. 1 Wednesday, June 4, 1969 (open access)

The Bellaire & Southwestern Texan (Bellaire, Tex.), Vol. 16, No. 16, Ed. 1 Wednesday, June 4, 1969

Weekly newspaper from Bellaire, Texas that includes local, state, and national news along with advertising.
Date: June 4, 1969
Creator: Gurwell, Kate
Object Type: Newspaper
System: The Portal to Texas History
The Lawton Constitution (Lawton, Okla.), Vol. 67, No. 152, Ed. 1 Tuesday, March 4, 1969 (open access)

The Lawton Constitution (Lawton, Okla.), Vol. 67, No. 152, Ed. 1 Tuesday, March 4, 1969

Daily newspaper from Lawton, Oklahoma that includes local, state, and national news along with advertising.
Date: March 4, 1969
Creator: Bentley, Bill F.
Object Type: Newspaper
System: The Gateway to Oklahoma History