underhead
Language: English
Part of speech: adj
Pronunciation: ipa: /ˈʌndə(ɹ)hɛd/
Etymology: From under- + head.
Senses: examples: text: In preparation for reactor pressure vessel head lift, an underhead radiation survey was performed on Dec. 16 , 1982 , to determine radiation levels in the area between the top of the plenum assembly and the reactor vessel head .
ref: 1984 January-February, G. Kalman, R. Weller, “Progress in the Recovery Operations at Three Mile Island Unit 2”, in Nuclear Safety, volume 25, number 1, page 102:
text: With large underhead radius shown to be optimum in a given case, the judgment must be made as to whether the valve weight increase is justified in improved engine performance.
ref: 1995, Joseph Harralson, Design of Racing and High Performance Engines, page 158:
text: The underhead shape on valves can come in all angles which are grouped into nailhead (almost flat) and tulip.
ref: 2008, Larry Shepard, The Mopar Six-Pack Engine Handbook HP1528, page 94:
text: To prevent a bolt from breaking at its underhead area, an underhead radius must be provided.
ref: 2008, Tomotsugu Sakai, Bolted Joint Engineering, page 108:
topics: engineering
natural-sciences
physical-sciences
glosses: Beneath the head of a mechanical component.
examples: text: The Missouri Pacific Railway agrees that there may be an underhead crossing of its tracks north of the Union Depot, at such point as may be most convenient to both parties, and corresponding with the underhead crossing of the Texas and Pacific Railway, above mentioned;
ref: 1900, Charter and Revised Ordinances of Fort Worth, Texas: 1900, page 354:
text: That about midway between the old crossings it proposes to construct an undergrade way to join the Wenrick pike on the north side of said railroad; that said railway company will turn the Stoner road west on a new way and compel users of the Stoner road, going north, to turn west 772 feet to the underhead way,m pass out on the underhead way 209 feet to the Wenrick pike, then go east on the Wenrick pike 706 feet, where they again strick the Stoner road;
ref: 1911, Reports of cases argued and determined in Ohio courts of record:
text: We further find that the viaduct or overhead plan will be more economical than the subway or underhead plan.
ref: 1921, Railroad Commission of Wisconsin, Opinions and Decisions of the Railroad Commission:
text: On August 7, 1929, complaint was filed with the Corporation Commission by the Board of County Commissioners of Oklahoma County asking for underhead crossing on Grand Boulevard on East Reno, in Oklahoma City, where same intersects the Frisco's right-of-way, stating that the present trestle has opening of 13 ft. between bent, making said underhead crossing dangerous, […]
ref: 1931, Oklahoma Corporation Commission, Annual Report, page 481:
glosses: Such that the train track goes over the pathway of cars or pedestrians.
raw_tags: of a railroad crossing
examples: text: It should almost be a lighting axiom therefore, that brilliant underhead light sources are taboo for esthetic purposes.
ref: 1931, Lighting - Volumes 20-21, page 14:
text: Throughout Good-Fellas, Scorsese is at great pains to remind us that we are watching a movie —there are freeze frames, over- and underhead angles, expressionist lighting (a funeral scene is scarlet), and at least one moment during which a character addresses us directly.
ref: 1994, Jay Scott, Great Scott!: The Best of Jay Scott's Movie Reviews, page 315:
text: Overhead and underhead lighting, especially when the lighting is hard, and is the sole illumination (i.e., no fill lights), can cast actors in an "ominous light." distorting their faces with creepy shadows, or hiding their eyes (the windows to the soul) in darkness.
ref: 2014, Thomas M. Sipos, Horror Film Aesthetics: Creating the Visual Language of Fear, page 151:
topics: broadcasting
film
media
television
qualifier: lighting
glosses: Coming from below.