US66993A - eiedel - Google Patents

Description

@glitten tatrs iatrnt @fitta G. A. RIEDEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE AUTOMATIC BOlLER-FEEDER COMPANY, OF PENNSYLVANIA.

Letters Pate-nt No. 66,993, dated July 23, 1867 antedated July 9, 1867.

IMPROVEMENT IN AUTOMATIC BOILER-IEEDERS.

TO ALL WHOM IT MAY CONCERN:

/ Be it known that I, G. A. IEDEL, of Philadelphia, Pennsylvania, have invented certain Improvements in Feed-Water Apparatus; and I do hereby declare the following tobe a full, clear, and exact description of the same, reference being hadto the accompanying drawing, and to the letters of reference marked thereon.

My invention consistsof certain improvements, described hereafter, in feed-water apparatus, for which Letters Patent were granted to me on the 3d day of July. 1866.

In` order to enable others to make and use my invention, I will now proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this specification, and in whichi Figure 1 is a side elevation of myA improved apparatus for feeding water to steam-boilers.

Figure 2, a sectional elevation.

Figure a. plan View of lig. 1.

Figure 4, an inverted plan view of part of the apparatus; and

Figure 5, a plan view of part of the apparatus.

To a curved seat in'a pedestal or standard, B, secured to a base-plate, A, istted a. cylindrical valve, C, the ends of which project beyond the sides of the pedestal. To the pedestal A is secured a capvD, and in a chamber or opening, .'v, in the centre of this cap, tits snugly, but so as to slide freely, a cylindrical plunger, E, which is pointed at its lower end, and bears against a cavity in the valve C at a point exactly in the centre of the latter, and round the plunger i's coiled a spring, Zi, which is confined between the under side of'the cap B and a collar, a, on the said plunger. Acrossthe opening a: extends a flexible diaphragm, c, the under side of which is directly in contact with the upper end of the plunger E. To one end of the valve O are connected two pipes, F F', and tothe opposite end are connected two pipes, G G', the pipes F G being connected to and communicating with a metal reservoir, H, and the pipes F' G' communicating with and being secured to a similar reservoir, H'. The pipes F F extend into the reservoirs, and nearly to the tops of the same, and at-the upper end of each reservoir is a valve-cock, I. In the pedestal B is an opening, f, communicating with the boiler at the water line of the same, and with the chamber x communicates a steam pipe, which also communicates with the boiler. In the pedestal B are openings e e', communicating with water-supply pipes or reservoirs, and an opening, d, communieating with the steam-space of the boiler, and in the valve C are ports z'z" and n n', the former communicating with the pipes G G', and the latter with the pipes F F. The variousiopenings and ports are so situated in the pedestal and in the valve, that each of the4 ports n n' will, during a portion of the operation of the machine, communicate with theA opening OZ, while each of the ports z' z" will, during a portion of the operation of the machine, communicate with either the opening f or with one of the openings e e'. The pipes F F' G G' are connected to the valve C at such an angle to eachother that when one of the reservoirs is in a vertical position., it will be at the limit of its downward motion, and the other will be elevated, and inclined at an angle of about thirty degrees. To the base-plate A, beneath each reservoir, is jointed a. cylinder, s, in which a hollow plunger, p, has a limited sliding motion, and through a cap at the upper end 'of the plungerp passes a rod, l, which is jointed at the upper end to the adjacent reservoir, and has at its lower end an enlargement or piston o.

When the apparatus is in the position shown in fig. 1, the water passes through the opening e, port t', and pipe G into the reservoir H, and out of the reservoir H through the pipe G', port z", and openingfto the boiler, the steam passing into the reservoir H', from the opening d, through the port n.' and pipe F'. So long as there is any water in the reservoir H', its weight, withthat of the reservoir itself, will counterbalance that of the reservoir H and the water with which it is partially illed. 'Wham however, the reservoir H is nearly full, and the' reservoir H' empty or nearly empty, the former reservoir will descend until the reservoirs are level with each other, when all the ports or communications will be closed, as shown in iig. 2. If the reservoirs were parallel to each other, instead of being inclined, they would now remain in the positionv shown in tig. 1 Owing to the angle at which thereservoirs are placed, however, the reservoir H, as it descends, is carried farther from the vertical line y y, in which is the centre of vibration, while the reservoir H' is brought nearer this, line. The leverage of the reservoir H, therefore, constantly lincreases as the reservoir descends, so that, before reaching the position shown in g. 1, it more than counterb'alances the weight of the reservoir H', and is carried downwards until the ports z'z" and n communicate with the openingsfe d. The water will now pass to the boiler from the reservoir II through the pipe G, port 2', and openingf, and will pass to the reservoir I-I through the opening e', port t", and pipe G', the steam passing to the reservoir H through the opening d, port n, and pipe F. As the manner in which the water is introduced into the reservoirs and discharged into the boiler is very similar in this apparatus to the manner in which the same operations are effected in the apparatus for which Letters Patent of the Unit-ed States were granted to me ou the Sd'day of July,l866, further :illusion to it will be unnecessary. Each-reservojr moves freely at the commencement of its descent, but it is retarded as the end of-the`rod L is brought in contact with the lower end`ot` the plunger p, and the latter is forced into the cylinder s, the air being compressed in 'the cylinder and forming a cushion, which prevents the too sudden arrest'of the motion of the'reservoir. The pressure ofthe spring b is auch that when thel steam is shut oli' from the apparatus, the valve C will be held firmly in its seat, so as not to be displaced by the movement of the reservoirs, if the latter are operated. When the steam is admitted to the apparatus, it passes through the openingf, and exerts a pressure against the under side of the valve C, and also passing into the opening or chamber w, exerts a. pressure against the diaphragm c, and on the plunger E, forcing the' latter downwards against the valve. The area of' the end of the plunger E is precisely the same as that of the opening d, so that the pressure against the lower side of the valve. will always equal that upon the top of the same, however the steam pressure in the boiler may vary. The valve C will, therefore, always turn freely in its seat, without danger of bei..g lifted from the latter by the pressure of the steam. In some instances a. weight may be substituted for one of the reservoirs, care being taken to so arrange the same that the leverage shall increase as the weight, or the remaining reservoir, descends. l

I claim as my invention, and desire to secure by Letters Patent- 1. The valve C and steam-opening d, in combination with a plunger, E, which is caused to bear on the valve by the pressure of the steam, substantially as and for the purpose described.

2. '.lhe cylinder` s and hollow plunger 10,' in combination with the reservoir H and rod h, 'with its piston o, the whole being constructed and operating as and for the purpose set forth. v

Iii-testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

G. A.. RIEDEL.

Witnesses;

CHARLES E. FOSTER, WM. HALL Waxmm.

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