In August, 1833, the Heatons placed a steam drag on the road between Worcester and Birmingham. A slight accident occurred at the start, but after repairs were made the trial was a success. Attached to the engine was a stage-coach, carrying twenty passengers, the load weighing nearly two tons. Lickey Hill was ascended, a rise of one in nine, and even one in eight in some places. Many parts of the hill were very soft, but by putting both wheels in gear they ascended to the summit, seven hundred yards in nine minutes. A company was formed in Birmingham to construct and run these carriages, subject to the condition of keeping up an average speed of ten miles an hour. A new carriage was built and tried in 1834, but after trials, the Messrs. Heaton dissolved their contract, as they were unable to do more than seven or eight miles an hour. After spending upwards of ten thousand dollars in endeavors to effect steam traveling, they retired from the field, stating that the wear and tear were excessive at ten miles an hour, and that the carriage was heavy, and wasteful in steam.
F. Hill
An English engineer, connected with the Deptford Chemical Works, Hill was among the first to be interested in steam-road locomotion. He was familiar with Hancock’s experiments and made a carriage of his own that was tried in 1840. He journeyed to Sevenoaks and elsewhere and ran up steep hills with the carriage, fully loaded, at twelve miles an hour, and on the level at sixteen miles an hour. He adopted the compensating gear that was invented by Richard Roberts and that by some writers has been credited to him.
To put Hill’s patents to practical use The General Steam Carriage Company was formed in 1843. The probable success of the company was based upon the belief that there was a demand for additional road accommodations in order that road locomotion should counteract the exorbitant charges made by the gigantic railway monopoly for conveying goods short distances. The company stated in its prospectus “that while they confidently believe the improved steam coach which they have engaged and propose to employ in the first instance to be the most perfect now known in England, they do not bind themselves to adhere to any particular invention, but will avail themselves of every discovery to promote steam coach conveyance.”
Trial trips were made on the Windsor, Brighton, Hastings, and similar roads, and with success. Once the carriage made a trip to Hastings and back, a distance of one hundred and twenty-eight miles, in one day, half the time occupied by the stage coaches. The Mechanic’s Magazine said: “We accompanied Hill, about a year ago, in a short run up and down the hills about Blackheath, Bromley, and neighborhood; and we had again the pleasure of accompanying him in a delightful trip, on the Hastings Road, as far as Tunbridge and back. The manner in which his carriage took all the hills, both in the ascent and the descent, proved how completely every difficulty on this head had been surmounted.”
In the Hill carriage, both the coach and the machinery were erected upon a strong frame mounted upon substantial springs. In the rear were the boiler, furnace, and water tanks, with a place for the engineer and fireman. In front was a coach body with seats for six inside, three on the box, and the conductor in front. The front part of the carriage was also suspended upon springs. The carriage was propelled by a pair of ten-inch cylinders and pistons, horizontally placed beneath the carriage. These acted upon two nine-inch cranks, coupled to the main axle through compensating gear; the two six-foot six-inch diameter driving wheels had the full power of the engines passed through them. The weight of the boiler when empty was two thousand three hundred pounds, and it had a capacity of about sixty gallons of water, while one hundred gallons more were contained in the tanks. The total weight of the carriage, including water, coke, and twelve passengers, was less than four tons. On heavy and rough roads the steam pressure was seventy pounds per square inch, but on good roads only sixty pounds. The average speed was sixteen miles an hour, but on a level twenty miles an hour was reached. As late as 1843, Hill’s carriages were running from London to Birmingham, having been in operation four or five years. Smooth in motion, they carried their passengers comfortably, but soon went out of use.
Goodman
Early in the forties a small road locomotive was made by Goodman, of Southwark, London. It was worked by a pair of direct-acting engines, coupled to the crank shaft. A chain pinion on the crank shaft transmitted motion to the main axle through an endless pitch chain working over a chain wheel of larger diameter on the driving shaft. The smoke from the boiler was conducted by a flue placed beneath the carriage. The vehicle had a speed of from ten to twelve miles an hour.
Norrgber