Specification of John Rawe the younger and John Boase : tubular boilers, &c. : method of guiding steam carriages.

  • Rawe, John.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Rawe the younger and John Boase : tubular boilers, &c. : method of guiding steam carriages. Source: Wellcome Collection.

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    Rawe Boases Improvements in Steam Carriages and Boilers, $c. what manner the same is to be performed, and to cause the same to be inrolled in His Majesty’s High Court of Chancery within six calendar months next and immediately after the date of the said in part recited Letters Patent, as in and by the same, reference being thereunto had, may more fully and at large appear. 5 HOW KNOW YE, that in compliance with the said proviso, we, the said John Rawe, the younger, and John Boase, do hereby declare the nature of our said Invention to consist, first, in a boiler composed of a novel arrangement of spiral tubes; secondly, in a method for creating increased draft for the fire of the said boiler, and to all other boilers to which the same maybe applied; 10 and, thirdly, in a new apparatus for guiding steam carriages, as also a new mode of fixing the main or driving cranked axle to the propelling wheels of the carriage, and the application of rods or stays to the cranked axle to allow of the engines to be supported on springs and of regulating the supply of water to the boiler, and in further compliance with the said proviso, we the said John 15 Rawe, the younger, and John Boase, do hereby describe the manner in which our said Invention is to be performed, by the following description thereof, reference being had to the Drawings annexed, and to the figures and letters thereon (that is to say):— Description of the Drawings. 20 Figure 1 represents a side elevation of a steam carriage, with our said im¬ provements partly shown in section, the better to explain the Invention. A is the frame of wrought iron; B, B, B, the steam boiler or generator; C, one of the propelling steam cylinders, there being one on each side of the carriage ; D, the cranked axle; E, E, one of the propelling wheels; F, F, F, F, iron 25 arms or stays, securely keyed to the axle D, and bolted at their extremities through the iron ring G, G, which is screwed to the spokes of the propelling wheel, and thus communicate the rotary motion from the axle; L, L, one of the fore wheels; M, the guiding wheel, which will be hereafter explained; 5 is a lever handle for operating on the guide wheel, and g is a handle for regulating 30 the steam; J is a spiral spring, inserted between the transit iron of the front wheels and the bar to which the guide wheel is attached; there is a nut and screw on the axis of the spring to regulate the necessary degree of pressure on the guide wheel, according to the state of the road ; W is the coach body, for the passengers; S is the water tank; and T is the place for the stoker or 35 engine attendant. Having now described the principal arrangements of the carriage, as repre¬ sented in Figure 1, we will proceed to describe the boiler in detail. It