Firth’s were the first of the Sheffield steel makers to enter the field armaments. Their involvement with Colt has been outlined in an article in the journal of the Colt Collectors Association in America and their activities as steelmakers to the small-arms industries has been covered in a previous issue of this Journal. This article gives a brief overview of their involvement as manufacturers in the field of heavy armaments, being the first to make all-steel guns and their evolving role in the use of steel for ordnance, culminating in the displacement of wrought iron by the adoption of steel for ordnance manufacture by the Royal Gun Factory in the 1880s. It also highlights their development of stainless steel in this context.

中文翻译：

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Thomas Firth and Sons – 武器工业的钢铁制造商。第 2 部分：重型武器

Firth's 是谢菲尔德钢铁制造商中第一个进入野战军备领域的公司。美国柯尔特收藏家协会杂志的一篇文章概述了他们与柯尔特的关系，本杂志上一期报道了他们作为小武器工业钢铁制造商的活动。本文简要概述了他们作为制造商在重型武器领域的参与，他们是第一个制造全钢枪的人，以及他们在钢用于军械方面不断发展的作用，最终通过采用锻铁取代锻铁1880 年代皇家枪械厂生产军械用钢材。它还突出了他们在此背景下对不锈钢的发展。