| 翻訳と辞書 |
| GWR 3800 Class ： ウィキペディア英語版 |
GWR 3800 Class
The Great Western Railway County Class were a class of 4-4-0 steam locomotives for express passenger train work introduced in 1904 in a batch of ten. Two more batches followed in 1906 and 1912 with minor differences. They were designed by George Jackson Churchward, who used standard components to produce a four-coupled version of his Saint Class 4-6-0s.
==Construction==
The first locomotive, no. 3473 ''County of Middlesex'', was built at Swindon Works in May 1904, with the following nine completed by October 1904. They were initially fitted with parallel-sided copper-capped chimneys, which were soon replaced by tapered cast iron chimneys. The second batch, of twenty, were built between October and December 1906. This batch had tapered cast iron chimneys from the start. A third and last batch of ten were built between December 1911 and February 1912. On these the footplates had curved drop ends at the cab and front bufferbeam. They were also fitted from new with a superheater and top feed.〔 Chimneys were a larger version of the copper-capped type of the first batch.〔 Coupled wheels had independent springing, without the compensating beams fitted between the axleboxes on Churchward's 4-6-0s. The cylinder block, including the piston valves and smokebox saddle, was constructed from two castings from the same pattern, bolted back to back, each casting containing one half of the saddle.〔 The cab, boiler and coupled wheels were attached to plate frames. The cylinder block was carried on two bar frames, bolted to the front end of the plate frames.〔 The piston valves were driven by Stephenson valve gear. The class were fitted with the Standard No. 4 boiler.〔 One locomotive, no. 3805 ''County Kerry'' was fitted with a smaller Standard No. 2 boiler between November 1907 and May 1909.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「GWR 3800 Class」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|