17:
85:
on the wheel flanges. By enabling this transverse movement of the wheelsets, locomotives with rigid frames do not have to use the thinner wheel flanges etc. normally needed to facilitate smooth running through points, bends and tightly curved sections of track. The 'guide length' of the locomotive is formed by the distance between the two fixed
Beugniot lever pivot points.
84:
On running round a bend, the first axle is pushed sideways by the curve of the rails and so moves the second axle parallel to it in the opposite direction, until the wheel flanges of both axles align with the rails. This distributes the guide forces between the two axles which reduces wear and tear
64:, with side-play, and connected by a lever. These levers are fixed to the frame in the centre and thus enable the sideways movement of the connected axles in opposite directions. In this way, instead of being fixed in the frame, the axles are able to move sideways rather like a
93:
In
Germany, Beugniot levers were used mainly in the middle of the 20th century. The best known examples of locomotives that use this type of lever are the
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130:
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173:
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68:, but clearly nowhere near as much. On locomotives with a side rod drive, the axle side-play is balanced using longer coupling pins (
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340:
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8:
360:
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57:
593:
37:
519:
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118:
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Around 1860, when
Beugniot was the chief engineer at the firm of
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380:
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142:
Explanation of the
Beugniot lever (bottom of linked paged)
36:
to improve curve running. It was named after its inventor
94:
646:
167:
147:Beugniot locomotive of the Porrettana railway
32:) is a mechanical device used on a number of
174:
160:
117:Bedienungs- und Wartungsanleitungen der
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647:
105:as well as steam locomotives like the
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155:
13:
14:
671:
135:
97:side-rod drive locomotives, the
76:are also able to move sideways.
56:, he developed a system whereby
455:Schwartzkopff-Eckhardt II bogie
1:
655:Steam locomotive technologies
79:
7:
88:
60:are housed in pairs in the
43:
10:
676:
112:
612:
568:
463:
390:AAR type A switcher truck
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285:
252:
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50:André Koechlin & Cie.
20:Diagram of Beugniot lever
430:Krauss-Helmholtz bogie
21:
445:Radial steering truck
262:AAR wheel arrangement
19:
272:Swiss classification
520:Klien-Lindner axle
267:UIC classification
244:Dual Control Stand
22:
642:
641:
545:Road–rail vehicle
530:Luttermöller axle
400:Articulated bogie
254:Wheel arrangement
99:Class 105 and 106
667:
660:Locomotive parts
415:Cleminson system
176:
169:
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153:
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62:locomotive frame
38:Édouard Beugniot
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505:Equalising beam
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72:) on which the
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615:exhaust system
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570:Exhaust system
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550:Trailing wheel
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490:Carrying wheel
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485:Beugniot lever
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450:Scheffel bogie
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277:Whyte notation
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136:External links
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30:Beugniot-Hebel
26:Beugniot lever
9:
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525:Leading wheel
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510:Gölsdorf axle
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500:Driving wheel
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495:Coupled wheel
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420:Grovers bogie
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395:Arnoux system
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306:Bagnall–Price
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74:coupling rods
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18:
540:Railway tire
484:
466:running gear
425:Jacobs bogie
405:Bissel truck
194:positioning
116:
103:East Germany
92:
83:
70:Kuppelzapfen
69:
47:
29:
25:
23:
555:Train wheel
535:Radial axle
515:Journal box
435:Mason Bogie
371:Walschaerts
209:Cab forward
131:1200 D
121:-Baureihen
107:DB Class 82
101:engines in
34:locomotives
649:Categories
475:Adams axle
440:Pony truck
410:Blomberg B
366:Stephenson
351:Kuhn slide
287:Valve gear
219:Steeplecab
197:Short hood
183:Locomotive
127:650 D
123:600 D
624:Blastpipe
341:Hackworth
234:Cowl unit
229:Hood unit
214:Sharknose
201:Long hood
80:Operation
58:wheelsets
629:Smokebox
617:elements
594:Lemaître
560:Wheelset
468:elements
361:Southern
321:Caprotti
224:Cab unit
89:Examples
54:Mulhouse
44:Overview
634:Chimney
613:Common
604:Lemprex
584:Kylchap
480:Axlebox
336:Gresley
316:Bulleid
311:Baguley
113:Sources
599:Lempor
589:Kylpor
464:Other
239:Boxcab
185:design
579:Giesl
572:types
383:types
381:Bogie
356:Lentz
331:Gooch
301:Baker
296:Allan
289:types
66:bogie
129:und
24:The
346:Joy
326:Gab
192:Cab
119:MaK
95:MaK
52:in
651::
199:/
125:,
109:.
40:.
175:e
168:t
161:v
28:(
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