American Coulthard Co.

American Coulthard Co.

Company type	Truck Company
Industry	Manufacturing
Founded	1905;120 years ago (1905)
Defunct	1906;119 years ago (1906)
Headquarters	Boston, US
Products	Trucks

American Coulthard Steam Truck (1905)

American Coulthard Steam Truck build by Corwin Manufacturing Company of Peabody, Mass.

The American Coulthard Co. of Boston, was a truck manufacturer. ^[1]

History

The American Coulthard Co. produced steam trucks from 1905 to 1906. The English businessman Coulthard, who had obtained several patents and gained experience with steam locomotives and steam lorries, was one of the first to implement this experience in the States. One model had a 30 hp steam engine. ^{[2] [3]} The wheelbase was 3302 mm. The overall length was 6096 mm and the vehicle width was 1905 mm. The selling price was 4000 dollars. ^[4] A truck for coal transport was designed for 6 tons. ^[5] In addition to Boston, Chicago was also listed as a location. The Corwin Manufacturing Company of Peabody, Massachusetts, successor to the Vaughan Machine Company, which holds the American rights for the English design of the Coulthard truck, is producing a series of twenty-five of these 6-ton trucks. The Coulthard truck is capable of towing a trailer with a load of 5 tons. ^[6]

References

1. "Coulthard Steam Truck". Automobile trade journal v.9 1905 May-Jun. 1905-05-01. Retrieved 2025-12-02.
2. "Coulthard Steam Truck 30 hp". An illustrated directory of the specifications of all domestic and foreign motor-cars and motor business wagons, gasoline, steam and eletric, sold in this country, 1907, published by Motor, the national monthly magazine of motoring. 1907-01-01. Retrieved 2025-12-02.
3. "Coulthard Steam Truck 30 hp". Automobile trade journal v.10 1906 Mar. 1906-03-01. Retrieved 2025-12-02.
4. "Coulthard Steam Truck 6 t selling price". The Automobile v.13 (1905). 1905-08-10. Retrieved 2025-12-02.
5. "Coulthard Steam Truck 6 t". An illustrated directory of the specifications of all domestic and foreign motor-cars and motor business wagons, gasoline, steam and eletric, sold in this country, 1907, published by Motor, the national monthly magazine of motoring. 1907-01-01. Retrieved 2025-12-02.
6. "Coulthard Steam Truck 6 t". The Horseless age v. 16 (July-Dec. 1905). 1905-07-05. Retrieved 2025-12-02.