Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,145 pages of information and 233,681 images on early companies, their products and the people who designed and built them.
Slaughter & Co of Bristol
1841-46 Built several locomotives for the Great Western Railway
Maker of stationary engines. 
1841 Arrow, Dart
1841-42 Javelin, Yataghan, Assegai, Stiletto, Djerid, Lance, Rocket, Creese