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1,649 Matching Results
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20-kW Solar Photovoltaic Flat-Panel Power System for an Uninterruptible Power-System Load in El Paso, Texas. Phase Ii. System Fabrication. Final Report October 1, 1979-May 31, 1981
The system plans, construction, integration and test, and performance evaluation are discussed for the photovoltaic power supply at the Newman Power Station in El Paso, Texas. The system consists of 64 parallel-connected panels, each panel containing nine series-connected photovoltaic modules. The system is connected, through power monitoring equipment, to an existing DC bus that supplies uninterruptible power to a computer that controls the power generating equipment. The site is described and possible environmental hazards are assessed. Site preparation and the installation of the photovoltaic panels, electrical cabling, and instrumentation subsystems are described. System testing includes initial system checkout, module performance test, control system test. A training program for operators and maintenance personnel is briefly described, including visual aids. Performance data collection and analysis are described, and actual data are compared with a computer simulation. System drawings are included. (LEW)
Date:
December 1, 1981
Creator:
Risser, V.V.
Object Type:
Report
System:
The UNT Digital Library
Athletic Shoe
Patent for improvements to athletic shoes for men, women, and children that improve the comfort of the shoe, support the anatomy of the foot, and prevent “falling arches and other foot ailments” (p. 1, lines 22-23).
Date:
December 3, 1918
Creator:
Rokahr, Charles
Object Type:
Patent
System:
The Portal to Texas History
Automatic Train-Stop.
Patent for mechanism to automatically sound alarm and shut off steam when a train passes a danger point.
Date:
December 21, 1915
Creator:
Bulla, Melbern Bernie
Object Type:
Patent
System:
The Portal to Texas History
Automobile Hay-Rake.
Patent for "an improved hay rake, for farm use, adapted to be attached to and operated by an automobile or motor truck or wagon." (lines 8-11) including illustrations.
Date:
December 25, 1917
Creator:
Holeman, David O.
Object Type:
Patent
System:
The Portal to Texas History
Baling-Press.
Patent for improvements in baling presses. Consists of improvements over prior patents 1197532 and 1229126. These improvements are primarily for operation of the compressor and also the mechanism for actuating the feeder.
Date:
December 24, 1918
Creator:
North, George W. & Andreas, H.M.
Object Type:
Patent
System:
The Portal to Texas History
[Carnegie Library Christmas Tree Room]
Photograph of a room in the El Paso Carnegie Library decorated for Christmas. The room's walls have wooden support beams and archways that have a dark smooth finish, and the back of the room contains book shelves and a table.
Date:
1926-12~
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[Carnegie Library Lobby]
Photo of the front lobby of the El Paso Carnegie Library decorated for Christmas. A dark lacquered desk is on the right side of the photo, with an open door to the left. There are three archways with dark lacquered trim. There is a table with books in front of the archways, with Christmas decorations around it like a wreath and trees. People are sitting in the room beyond the archways reading newspapers.
Date:
1926-12~
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[Carnegie Library Lobby Looking Right]
Photo of the front lobby of the El Paso Carnegie Library decorated for Christmas. A dark lacquered desk is on the left side of the photo, and three archways are just beyond the desk. Books are displayed on a table to the right of the desk, and Christmas decorations are around it.
Date:
1926-12~
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
Combustion Apparatus
Patent for a combustion apparatus that will maximize the heat produced with any given amount of fuel.
Date:
December 14, 1920
Creator:
Anderson, Robert James
Object Type:
Patent
System:
The Portal to Texas History
[Construction Site Looking Eastward]
Photograph of a construction site. There is a foundation with two cranes and supplies spread around. There are buildings in the background.
Date:
December 3, 1917
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
Corn-Popper
Patent for a corn popper that can also be used for roasting nuts or for general cooking. Illustrations included.
Date:
December 31, 1907
Creator:
Young, George B. & Young, Joseph H.
Object Type:
Patent
System:
The Portal to Texas History
Door Brace
Patent for a door brace. Illustration included.
Date:
December 21, 1909
Creator:
Friberg, Charles
Object Type:
Patent
System:
The Portal to Texas History
Door Check
Patent for door check. Illustration included.
Date:
December 19, 1905
Creator:
McGinnis, Charles
Object Type:
Patent
System:
The Portal to Texas History
Drill-Bit-Retaining Device
Patent for a new and improved “drill bit retaining devices for drills of the hammer type”(lines 12-13), including an illustration.
Date:
December 14, 1915
Creator:
Weiner, Rudolph S.
Object Type:
Patent
System:
The Portal to Texas History
Dumping-Bottom for Ash-Pans of Locomotives
Patent for a dumping bottom for ash pans of locomotives that allows the ashes to be quickly dumped through panels that open in the floor.
Date:
December 19, 1911
Creator:
Golden, Oscar
Object Type:
Patent
System:
The Portal to Texas History
Dust and Cinder Fender.
Patent for a fender for railroad car windows that prevents the intrusion of dust and cinders into an open window while allowing window to remain open for light and ventilation. The device can be attached to either side of the car.
Date:
December 11, 1900
Creator:
Bell, Chester L.
Object Type:
Patent
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 2, No. 231, Ed. 1 Sunday, December 2, 1883
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 2, 1883
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 2, No. 233, Ed. 1 Sunday, December 16, 1883
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 16, 1883
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 2, No. 237, Ed. 1 Sunday, December 9, 1883
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 9, 1883
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 3, No. 210, Ed. 1 Sunday, December 14, 1884
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 14, 1884
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 3, No. 211, Ed. 1 Tuesday, December 16, 1884
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 16, 1884
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 3, No. 212, Ed. 1 Wednesday, December 17, 1884
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 17, 1884
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 3, No. 213, Ed. 1 Thursday, December 18, 1884
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 18, 1884
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The El Paso Daily Times. (El Paso, Tex.), Vol. 3, No. 214, Ed. 1 Friday, December 19, 1884
Daily newspaper from El Paso, Texas that includes local, state and national news along with extensive advertising.
Date:
December 19, 1884
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History