US 70511 A
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N, PErERs. PHDTO-LITMOGRAPHER. WASHINGTON. D c.
E-UGNE BOUYRDON, OF PARIS, FRANCE.
Letters Patent No. 70,511, dated November 5, 1867.
IMPROVED DEVICE POE OPERATING FOLDING VALVES.
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To ALL WHOM 1T MAY coNoERN:
Bezit known that I, EUGNE BOURBON, Engincer,of 36 Rue de Malte, Paris, in 4the Empire of France, have invented Improvements iuV-alves for Regulating the Flow of Liquids, Gases, and other ElastilczFluidsf and I do hereby declare that the following is a fulland exact description thereof, retercncc being had to the accompanying sheet of drawing, and to thejigures and letters ofreference marked thereon. i
In pipes used for conveying water, gases, or other elastic fluids, thercare cocks, and clack and other valves' for regulating theirldistribution, and, when the pressure ofthe iluid is very great, considerable power is required to open and to close these cocks and valves. i v
To overcome this diiculty I have invented aiiexible valvewbich opens easily, with very little force. This valve is nothing but a membrane, that is to say, a strip orbajid of suppllmerial, fitting exactly'on the edges of the openings by which the water or the gases are to issue, in vorder to close the said openings. Y This strip or band is attached to the end of. a lever, which unrolls it`in applying it on the orifice which is to be closed, or winds it up in lifting it when the orifice-is to be opened. I make these valves of thin skin, of lpgthemof India rubber, of gutta percha, or other analogous material, according to the nature of the fluid whiclris to be retained, and also according to the dimensions which I mst give to them. In every case these flexible valves must be of a material impervious to the uid which is to be retained, and not to be attacked thereby. Thus, for water or air, I make my valves of leather, of India rubber, of a woven fabric prepared with India rubber, or of gutta percha. For illuminating gas, I can make them of greasy leather, of cloth, or felt Yimpregnat ed with a fatty matter, of sulphurized India rubber, or analogous material. For steam, I make them of wire gauze, lined or coated with some soft and elastic material which will till its meshes. I might also use an assemblage of small copper plates, brought edgeto edge by hinges, which would give them the pliability requisite for the winding up and unwindng of the valve; or I can use certain combinations of metallic plates and wires which have almost as much Ilexibility as membranes.
A It will be observed that oneof the great: advantages of these flexible valves is that they close hermetically, by fitting exactly onthe edges of the openings, without any previous dressing or grinding of the surfaces in contact, which saves labor both in fitting these valves and in keeping them in repair.
To enable others skilled in the art to understand and use my invention, I will now proceed to describe the manner in which the same is or may be carried into e'ect by 'reference to the accompanying drawings.
Figures 1 and 2 are two sections of one of these valves in its box, the first following the line A. B, and the second the line C D.
M is the valve-box or chamber. It may be closed in front by a sheet ofgla-ss, I, which will permit inspec# tion of the working of lthe valve.
The water enters by the elbow pipe?, and issues through the orice R, which is composed o f a number of small holes, lm m an, pierced in the plate T or bottom of the box. All those openings m fm m are closed by the flexible valve Q,`which is a strip of leather fitting exactly on the plate T.
It will be evident that ifthc outlet It were a single opening, the valve, not finding sufficient support, would sink into this opening, and would soon be destroyed.
The valve Q is attached at one cndto the extremity of a lever-arm, L, and at the other to the plateA T.
' The lever L is joined to the axle K K,avl1ich passes out of the box, traversing with gentle friction thc screw-jacket J, and`thc conical part :o forms a hermeticaljoint. A handle, which is fixed on the end K of this axle, serves to give it motion, that is to say, to open and close the valve Q. When the lever is-in the position indicated by L, the valve is stretched and the orifice R closed; but when this lever is brought from L to L', it lifts the valve, which winds in the direction of Q', and then the orifice R or the passages .m 'm m open almost Without eifort. g
AThe figs. 3 and 4 show another arrangementof flexible valve, the same letters indicating the same parts as -in the preceding gures. i
Figure `isa front view of the box, with its valve, and
Figure 4 is a section of'it at X X.
M is the box, closed in front by the sheet of glass I; Pthe inlet and R the outlet pipe.
T is a cylindrical concave plate, adjusted at the bottom of the box, and pierced with holes m m m, for the exit of the iuid by the elbow pipe R.
Q is the exible valve, say of leather, attached at one end to the lever L and at the other to the plate T.
`This valve is opened and closed by means of the handlef, fixed on the end K of the axle of thelever L.
The Figures 5 and 6 are a front and a sectional view at y y of another flexible-valve box, which may bo used advantageously in place of what is termed a two-way cock.
P is the inlet pipe, and there are two outlet pipes, R and R, separated by a partition, A, which runs between the bottom of the box and the plate T. i
The valve Q Q' is double, and is shown in the position in which it closes the two orifices. If the lever L is turned to the right it opens the orifice R, and if it is turned to the left it opens R. This arrangement of valve bears a great analogy to the slide-valves of steam engines, and might replace them very advantageously, which I reserve the right of doing. The steam would arrive by the pipe P, and enter the cylinder at one end by the orifice R,and' at the other end by the orifice R. In this case the box M would be a steam-chest'. l
Figure 7 is the front view of a eXble-valve box, the plate T of which is a cylindrical surface, slightly' convex, the effect being that the valve, when placed in the position shown on the drawing at Q, finds it'selt` tightly stretched on the plate T, which is a condition required for the perfect closing` of the orifice. When the lever comes from L to L the valve is entirely raised.
Figure 8 is a front view of the same box, with lexible valve, but the valve is connected with the lever L in another way. It is, however, still drawn and stretched on the convex plate T, but drawn more directly.
What I claim as my invention, and desire to secure by Letters Patent, is-
The combination with the valve-box, and suitable orifice or orifices formed therein, of the menibrancous or flexible valve, and lever for operating the same, substantially as and for the purposes herein set forth.
Witnesses BnnssoN, JAMES HAND.