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Bar gates, especially manually operated ones, are often counterweighted to allow easier manual control. [7] Bar gates are frequently paired end to end or closely offset to block traffic in both directions. Some bar gates also have a second arm which hangs 30 to 40 cm below the upper arm when lowered to increase approach visibility.
In the fifth row the fifth mark crosses diagonally, forming a "five-bar gate". Tally marks are typically clustered in groups of five for legibility. The cluster size 5 has the advantages of (a) easy conversion into decimal for higher arithmetic operations and (b) avoiding error, as humans can far more easily correctly identify a cluster of 5 ...
Original file (770 × 1,206 pixels, file size: 14.24 MB, MIME type: application/pdf, 276 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Showing the angle iron guide bars, the I-beam roll ways and the bumper posts View of a track from a sandpile, in the Montreal Metro near the Beaugrand Station, showing the inverted L cross-section of the guide bars (the extreme flared ends are a fabricated inverse U), precast concrete roll ways and conventional track
This test is typically referred to as the "patent bar", although the word "bar" does not appear in the test's official name. Unlike the general bar examination, for which graduation from a recognized law school is a prerequisite, the USPTO exam does not require that the candidate have taken any law school courses.
Depending on the voltages sent down the various lines, it can simulate the action of the three major logic gates: AND, OR and NOT. The abstract of the patent is as follows: "A molecular crossbar latch is provided, comprising two control wires and a signal wire that crosses the two control wires at a non-zero angle to thereby form a junction ...
Yett hanging in the main entrance of Blackness Castle, Scotland, showing attached bolts and pierced construction.Wrought in 1693. [1]A yett (from the Old English and Scots language word for "gate") [2] is a gate or grille of latticed wrought iron bars used for defensive purposes in castles and tower houses. [3]
The Bargate is a Grade I listed medieval gatehouse in the city centre of Southampton, England.Constructed in Norman times as part of the Southampton town walls, it was the main gateway to the city.