Appleton's dictionary of machines, mechanics, engine-work, and engineering . by a so-called bayonet joint, for this purposthere are two tongues e, and these correspond with two cuts in the ring c, with which the margin of ais encircled. When, therefore, d is so placed upon a that the tongues and cuts correspond, a simpleturn of d is sufficient to bring the tongues under the ring c, and thus secure the whole. The aperturesoo are made around a, to increase the draught from without, The principal addition, therefore, inBenklers lamp is a sudden contraction in the chimney at a certain dista
Appleton's dictionary of machines, mechanics, engine-work, and engineering . by a so-called bayonet joint, for this purposthere are two tongues e, and these correspond with two cuts in the ring c, with which the margin of ais encircled. When, therefore, d is so placed upon a that the tongues and cuts correspond, a simpleturn of d is sufficient to bring the tongues under the ring c, and thus secure the whole. The aperturesoo are made around a, to increase the draught from without, The principal addition, therefore, inBenklers lamp is a sudden contraction in the chimney at a certain distance from the (lame, the aper-ture being of the same diameter as the wick, and this is produced by the insertion of a metallic ring, orcone. The action of such a contrivance is easily understood. The external and internal currents of air andthe flame must pass through the aperture of d, where a rapid contraction results. The outer current isdriven against the axis of the flame at a sharp angle, and thus forces the flame itself into the inner cur-rent, so that an intimate mixture
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
