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Armstrong jigger winch of 1888. A hydraulic jigger is a hydraulically-powered mechanical winch.. From the mid-19th century, hydraulic power became available throughout the increasingly modern dockyards and warehouses.
Device with grooves and chucks. A jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. [1]An example of a jig is when a key is duplicated; the original is used as a jig so the new key can have the same path as the old one.
The purpose of the sharpening jig is to hold the blade or tool at the desired angle while grinding or honing the bevel. In some cases, the angle of the bevel is critical to the performance of the cutting edge—a jig allows for repeatability of this angle over a number of sharpening sessions. There are many styles of jig available commercially.
Jig Doll Duet Archived 19 July 2011 at the Wayback Machine – a clip of a performance by Val Knight (one of the few collectors of jig dolls in the UK) at the Reading Cloggies' Festival in 1983. The musician is the late Simon Knight (requires RealPlayer) Singabout #58 – Jig Dolls.
8 time, [7] and the term was used for a post-play entertainment featuring dance in early modern England, but which 'probably employed a great variety of dances, solo (suitable for jigs), paired, round, country or courtly'; [8] in Playford's Dancing Master (1651) 'the dance game in "Kemps Jegg" is a typical scenario from a dramatic jig and it is ...
Wireline truck rigged up to a drilling rig in Canada. In the oil and gas industry, the term wireline usually refers to the use of multi-conductor, single conductor or slickline cable, or "wireline", as a conveyance for the acquisition of subsurface petrophysical and geophysical data and the delivery of well construction services such as pipe recovery, perforating, plug setting and well ...
Jig concentrators are devices used mainly in the mining industry for mineral processing, to separate particles within the ore body, based on their specific gravity (relative density). [1] The particles would usually be of a similar size, often crushed and screened prior to being fed over the jig bed. There are many variations in design; however ...
Slip jig (Irish: port luascach, port luascadh [1] [2]) refers to both a style within Irish music, and the Irish dance to music in slip-jig time originating from England. The slip jig is in 9 8 time , traditionally with accents on 5 of the 9 beats — two pairs of crotchet / quaver (quarter note/eighth note) followed by a dotted crotchet note .