bat's-wing

His tail switched, his bat's-wing ears folded and lay back.

Inconstant Star Anderson, Poul, 1926- 1991

Another very ingenious system is that of Mr. Loiseau, consisting of an ordinary gas-burner (fish-tail, bat's-wing, etc.), carrying at its side

Scientific American Supplement, No. 362, December 9, 1882 Various

An ordinary bat's-wing gas-burner mounted at the far corner of the table top is invaluable in the preparation of tubular apparatus with sharp curves, and for coating newly-made glass apparatus with a layer of soot to prevent too rapid cooling, and its usually associated result -- cracking.

The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.

The Bunsen flame is applied to a spot some 5 cm. from one end of such a piece of tubing and the tube slightly drawn out to form a constriction, the constricted part is bent in the bat's-wing flame, to an acute angle, and the open extremity of the long arm sealed off in the blowpipe flame.

The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.

In their preparation three articles are essential; first a three-square hard-steel file or preferably a glass-worker's knife of hard Thuringian steel for cutting glass tubes etc.; next a blowpipe flame, for although much can be done with the ordinary Bunsen burner, a blowpipe flame makes for rapid work; and lastly a bat's-wing burner.

The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged.

If acetylene can be consumed without polymerisation in burners of the simple fish-tail or bat's-wing type, it should show a higher illuminating efficiency.

Acetylene, the Principles of Its Generation and Use W. J. Atkinson Butterfield

The appearance of the head was now somewhat that of a "bat's-wing" gaslight.

A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874

Her eyes, gazing into space, took in the whole of d'Arthez's person; their light poured through his flesh, she read his soul; suspicion had not so much as touched him with its bat's-wing.

Secrets of the Princesse de Cadignan Honor�� de Balzac 1824