Device for Preventing Escape of Steam from Bollers on Bursting of Pipes.
Year: 1896

page_text: being date of first Foreign Application (in 19th Feb., 1896
United States of America)
Date of Application (in United Kingdom), 8th June, 1896
Complete Specification Left, 8th June, 1896-Accepted, 25th July, 1996
Date of Application (in United Kingdom), 8th June, 1896
Complete Specification Left, 8th June, 1896-Accepted, 25th July, 1996
COMPLETE SPECIFICATION.
Safety Device for Preventing Escape of Steam from Bollers on
Bursting of Pipes.
I, GEORGES JOSEPH NICOLAS CARPENTIER, of Newport News, County of
Warwick, State of Virginia, in the United States of America, Civil Engineer, do
hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This invention has relation to improvements in safety devices for steam boilers;
and the object is to construct and provide a device or mechanism whereby in the
case of the steam-pipe leading to the engine, bursting, the steam from the boiler
will be automatically shut off and the escape of the steam entirely prevented.
I accomplish the object of the invention by the means illustrated in the
accompanying drawings, forming a part of this specification, wherein :-
Figure 1 is a plan view, partly in section, of. the device.
Figure 2 is an end view thereof.
Figure 3 shows the device as operatively fixed to a steam boiler.
It will be perceived that while I have illustrated the device as fixed to the head
of a steam boiler of a well known construction, it is apparent that it may be
interposed and arranged in other positions, the primary purpose being to take
steam from the boiler into the cylinder and to connect the pistons in the cylinder to
operate the stop-valve in the steam pipe.
Referring to the drawings. A designates the casing of the stop-valve having
suitable connection to the steam-pipe 1, leading to the engine. (Not shown.) To
the outer end of the valve-shell is suitably secured a bracket 2, formed with a
yoke 3, in the middle of which is formed a screw threaded opening 4, in which is
fitted a screw 5, provided with a hand-wheel 6, to turn the end of the screw down
on and from the shoulder of the valve-stem to shut or open the valve.
B designates the shut-off valve, which may be of any suitable design adapted to
close and open the steam-way in the valve-chamber. The valve-stem 7, is slidingly
arranged in proper packing and has its outer portion 8, reduced in diameter and
projected through the bore formed in the screw 5, so that the end of the reduced
portion of the valve-stem will project a sufficient distance beyond the outer end or
head of the screw to be operatively engaged by the lever, substantially as shown
in Fig. 1 of the drawings. A seat 9, is formed on the bracket 2, against which and to
which the frame of the piston-cylinder is secured by bolts, as shown in the drawings.
C designates the piston-cylinder, formed with a laterally extended plate 10, to
set against and be secured to the seat 9. The piston-cylinder is formed with two
piston-chambers 11, 11*, of different diameters the larger being at the outer

page_text: from the boiler and formed with a stem, a guide for the stem, a cylinder having
connection to the boiler and steam-pipe, and having steam-chambers of different
diameters, a piston-rod carrying piston-heads for each steam-chamber, and a lever
on the piston-rod to act on the valve-stem, substantially as set forth.
Dated this 26th day of May 1896.
GEORGES JOSEPH NICOLAS CARPENTIER.