In 1813, he went to the Jessop’s Butterley Works, but remained there only three years, when he became a partner and mechanical manager of the Eagle Foundry, at Birmingham, a connection that he maintained for ten years. From 1825 to 1835, he was engaged in the practice of civil engineering in London. In the last-mentioned year, he became a share owner in the Cwm Avom tin works in Glamorganshire, Wales, where he superintended the erection of copper-smelting furnaces and rolling mills. He was also connected with the Maesteg Works in the same county and a brewery at Neath. Through the failure of these enterprises he lost the savings of his lifetime and was never again engaged actively in business. He invented many ingenious modes of reducing and manufacturing metals; made some of the original engines used on the Humber and the Trent and also some of the earliest that were seen on the Mersey, including those four vessels first operated on the Liverpool ferries in 1814. He also invented the calciner that was put in use in the tin mines at Cornwall and the silver ore works in Mexico.
Like nearly all the other engineers of his day, Brunton planned a steam carriage. This was built when he was at the Butterley Works, in 1813, and was called “the mechanical traveller.” Although a peculiar machine it worked with some degree of success, at a gradient of one in thirty-six, all the winter of 1814, at the Newbottle Colliery. The machine was a steam horse rather than a steam carriage. It consisted of a curious combination of levers, the action of which nearly resembled that of the legs of a man in walking, with feet alternately made to press against the ground of the road or railway, and in such a manner as to adapt themselves to the various inclinations or inequalities of the surface. The feet were of various forms, the great object being to prevent them from injuring the road, and to obtain a firm footing, so that no jerks should take place at the return of the stroke, when the action of the engine came upon them; for this purpose they were made broad, with short spikes to lay hold of the ground. The boiler was a cylinder of wrought iron, five feet six inches long, three feet in diameter, and of such strength as to be capable of sustaining a pressure of upwards of four hundred pounds per square inch. The working cylinder was six inches in diameter, and the piston had a stroke of twenty-four inches; the step of the feet was twenty-six inches, and the whole machine, including water, weighed about forty-five hundredweight. In 1815, the engine of this carriage exploded and killed thirteen persons.
Thomas Tindall
A steam engine was patented, in 1814, by Thomas Tindall, of Scarborough. The inventor proposed to use this for an infinitude of purposes, such as driving carriages for the conveyance of passengers, ploughing land, mowing grass and corn, or working thrashing machines. The carriage had three wheels—one for steering. The steam engine drove, by spur gearing, four legs, which, pushing against the ground, moved the carriage. The engine could also be made to act upon the two hind wheels for ascending hills, or for drawing heavy loads. A windmill, driven partly by the action of the wind, and partly by the exhaust steam from the engine, was used as adjunct power.
John Baynes
A very ingenious modification of William Brunton’s mechanical traveler, was the subject of a patent granted to John Baynes, a cutler, of Sheffield, England, in September, 1819. The mechanism was designed to be attached to carriages for the purpose of giving them motion by means of manual labor, or by other suitable power, and consisted of a peculiar combination of levers and rods. The patentee also stated that there might be several sets of the machinery above described for working each set with a treadle, or even only one set and treadle. Then he added: “I prefer two for ordinary purposes, particularly when only a single person is intended to be conveyed in the carriage, who may work the same by placing one foot on each treadle, in which the action will be alternate. The lower parts of the leg should be so formed or shod as not to slip upon the ground. This machinery may be variously applied to carriages, according to circumstances, so as that the treadles may be worked either behind or before the carriage, still producing a forward motion; in some cases it may be advantageous to joint the front end of the treadles to the carriage and press the feet on the hind ends.”
Julius Griffiths
Among those who came to the front with plans for steam carriages for the public highways, soon after the roads began to be improved, was Julius Griffiths, of Brompton Crescent. In 1821, he patented a steam carriage that was built by Joseph Bramhah, a celebrated engineer and manufacturer. It is said that part of the mechanism was designed by Arzberger, a foreigner.
The carriage has been termed by some English authorities “the first steam coach constructed in this country, expressly for the conveyance of passengers on common roads.” It was repeatedly tested during a period of three or four years, but failed on account of boiler deficiencies. Alexander Gordon said of it: “The engines, pumps, and connections were all in the best style of mechanical execution, and had Mr. Griffiths’ boiler been of such a kind as to generate regularly the required quantity of steam, a perfect steam carriage must have been the consequence.” The carriage moved easily and answered very readily to guidance. The vehicle was a double coach and could carry eight passengers.
This locomotive had two vertical working steam cylinders, which with the boiler, condenser, and other details were suspended to a wood frame at the rear of the carriage. The engineer was seated behind and did his own firing. The boiler was a series of horizontal water tubes, one and one-half inches in diameter and two feet long; at each end the flanges were bolted to the vertical tubes forming the sides of the furnace. Attached to the wood frame in front of the driving wheels, was a small water tank, and a force pump supplied the boiler with water. The steam, passing through the cylinder, went into an air condenser. The power of the engines was communicated from the piston rods to the driving wheels of the carriage by sweep rods, the lower ends of which were provided with driving pinions and detents, which operated upon toothed gear fixed to the hind carriage axle. The object of this mechanism was to keep the driving pinions always in gear with the toothed wheels, however the engine and other machinery might vibrate or the wheels be jolted upon uneven ground. The boiler, engine, and other working parts were suspended to the wood frame by chain slings, having strong spiral springs so as to reduce the vibration from rough roads.