GB2164126A

GB2164126A - A gas cock

Info

Publication number: GB2164126A
Application number: GB08502393A
Authority: GB
Inventors: Friedrich Springer Kieninger
Original assignee: Isphording Hispania SA
Current assignee: Isphording Hispania SA
Priority date: 1984-07-23
Filing date: 1985-01-31
Publication date: 1986-03-12
Also published as: ES280655U; GB8502393D0; ES280655Y

Abstract

In a gas cock comprising a single piece body 1 in which there is machined at least one inlet and at least one outlet, and an internal body 2 that is capable of revolving within an internal cavity in the body 1, the body 2 is provided with a central axial passage 21 and several perimetral passages 22 connected thereto. Preferably the passages 22 are radial and a spindle 3 is secured onto the body 1 by means that allow slight axial travel, and is non- rotatably fixed relative to the internal body 2 such that the spindle 3 is capable of adopting any one of a plurality of positions by means of rotating in said body 1. Preferably the spindle 3 is urged away from the body 2 by a compression spring and includes a stud 31 which may be selectively engaged in recesses 14 in a slot 13 in the body 1. <IMAGE>

Description

SPECIFICATION A gas cock This invention is concerned with a gas cock.

According to the present invention there is provided a gas cock comprising: a one piece outer body having at least one inlet and at least one outlet, and an inner valve body rotatable within the outer body, said inner body including an inner axially extending passage and several outwardly extending passages communicating the inner passage with the exterior of the inner body, thereby defining an open position for the inner body when the inlet and outlet are communicated by way of said inner and outwardly extending passages.

The inlet and outlet passages in the one piece body may be angularly offset relative to one another by at least 90 degrees.

The inner valve body may be provided with at least two radial perimetral passages of different diameters which are angularly offset relative to one another and are connected to the inner axially extending passage in such a way that when the valve body is rotated, at least three working positions are established, namely fully closed, half open and fully open positions.

In order that the present invention may more readily be understood the following description is given, merely by way of example, with reference to the accompanying drawings in which: Figure 1 depicts a bottom plan view of a gas cock in accordance with this invention; Figure 2 is an elevational view of the gas cock shown in Fig. 1, this figure showing two partial section views to reveal the inlet and outlet passages 11 and 12 which lead to an internal cavity in the single piece body 1.

Figure 3 is a top plan view of the gas cock shown in Figs. 1 and 2, where a stud 31 of the operating handle 3 is accommodated inside one of the slots 14.

Figure 4 is a bottom plan view similar to Fig. 1, where the body 1 has an alternative shape, with different geometry as regards the passage 11.

Figure 5 is an elevational view of the gas cock shown in the preceding Figures, this figure showing two partial sectional views to reveal the inlet and outlet passages 11, 12, and passage 12 can be seen to have different geometry.

Figure 6 is an elevational view similar to Fig.

5, where the body 1 can be seen to have an alternative shape with passages 11 and 12 set at an angle of 180 degrees to one another. Two partial sectional views are shown in this figure to reveal the inlet and outlet passages 11, 12.

Figure 7 is a top plan view of the gas cock shown in the preceding figure.

Figure 8 is an outline view of the gas cock covered by the invention.

Figure 9 is a view of internal cone 2 which when located inside the internal cavity 15 of the body 1 provides for total closure or differing degrees of opening for the gas cock according to the relative position of the cone 2 with respect to the body 1.

Figure 10 is an enlarged section of Fig. 9, where cone 2 is provided with several radial passages 22, 22', 22", 22"'... which are angularly offset relative to one another and lead into a central axial passage 21 in the cone body 2 so that they are capable of being set at differing positions or different degrees of opening.

Figure ii is an alternative enlarged section of Fig. 9 where the cone 2 has two radial passages 22, 22' which are angularly offset relative to one another and lead into a central axial passage 21 in the cone body 2 so that they are capable of adopting varying degrees of opening.

This invention relates to a gas cock which essentially comprises a single piece body (1), an internal cone (2), and an operating handle (3).

The one piece body (1), which has an appropriate geometrical shape, is provided with means (15) to secure it in a certain position, respective holes or passages (11), (12) for the gas inlet and outlet, an internal cavity (25) into which said passages (11), (12) lead, a slot (13) machined in the body (1) itself, and at least one recess (14) made in one of the walls of the slot (13).

In the construction depicted in the attached drawings, there are shown two recesses (14) offset at an angle to one another in the rear wall of the slot (13).

In the construction illustrated in Figs. 1 to 5, the passages (11), (12) are set at an angle of 90 degrees to one another.

In the construction illustrated in Figs. 6 and 7, the passages (11), (12) are set at an angle of 180 degrees to one another.

By way of an expianatory example, the passage (11) is considered to be the gas inlet, and the passage (12) the gas outlet. The passage (12) is provided with a threaded area for the purpose of thus attaching the relevant pipework.

The cone (2) is accommodated inside cavity (25) in the one piece body (1). The cone (2), (see Figs. 9, 10 and 11) has a central axial passage and at least two radial passages (22), (22') angularly offset relative to one another by an angle a, (see Fig. 11).

There may be more than two radial passages (22), (22'), (22"), (22"')... set apart from one another by like or differing angles a,.

a2, a3. . (see Fig. 10).

If, in addition to the closed position, there exists more than one open position where the inlet (11) and the outlet (12) intercommunicate, the relevant angle a (or, if appropriate, the relevant angles a1, a2, a3... etc.) must be the same as the angle between the recesses (14) in the slot (13) of the body (1), because it is this angle which governs the open positions that must be in line with passages (22), (22')... for conveying the gas.

The opening control (3) is a body mounted upon the one piece body (1) with the aid of a flange, and provided with suitable formations (32) for an operating means such as a handle or similar (not shown) to be mounted thereon.

This operating handle (3) has a stud (31) attached to it, this being accommodated in the slot (13), and capable of being accommodated in any of the recesses (14) in the body (1).

The operating handle (3) is non-rotatably attached to the cone (2) but is nonetheless capable of undergoing a slight axial travel resisted by a compression spring (not shown) such as to enable the stud (31) to become accommodated in a recess (14), or to allow it to be freed therefrom, while said stud (31) is able to rotate within the slot (13) whenever the handle (3) is turned. Such rotation causes the cone (2) to rotate, this providing for total closure or for any of the differing degrees of opening. The spring thus urges the cone (2) more firmly into the correspondingly conical cavity (25) to maintain a seal between the cone (2) and the cavity (25).

Total closure is achieved when the radial passage (11), which may be either the gas inlet or outlet depending on the direction of the gas flow, faces the conical wall of the cone (2).

The varying degrees of opening are achieved according to the extent to which the radial passage (11) faces the different holes (22), (22').

The degree of opening depends upon: (a) the position of the cone (2), which provides either for total opening of one of the holes (22) by placing it in full confrontation with passage (11), or for non-total opening by placing it in partial confrontation therewith, and (b) the diameter of the hole, which in the fully open position will allow a greater or lesser flow of gas.

Claims

1. A gas cock comprising: a one piece outer body having at least one inlet and at least one outlet, and an inner valve body rotatable within the outer body, said inner body including an inner axially extending passage and several outwardly extending passages communicating the inner passage with the exterior of the inner body, thereby defining an open position for the inner body when the inlet and outlet are communicated by way of said inner and outwardly extending passages.

2. A gas cock according to claim 1, wherein said inner body is an internal cone that is capable of rotating within an internal cavity of the one piece outer body in communication with the inlet and the outlet, said cone being provided with said inner axially extending passage and several radial perimetral passages joined thereto thus establishing at least two working positions, one of said working positions being the closed position in which the inlet and/or outlet passages are not in communication with each other through the passages in the internal cone, and the other working position being the open position in which the inlet and outlet passages are in communication with one another through said passages in the cone.

3. A gas cock according to claim 1 or 2, including an operating handle attached to the one piece body so as to be capable of being axially shifted to a limited extent, this handle being non-rotatably secured to the internal cone but capable of adopting any one of a plurality of positions upon rotation relative to said one piece outer body in such a manner that when it does so rotate, it causes the inner body to rotate and thus establishes at least said working positions.

4. A gas cock according to claim 3, wherein said operating positions of said operating handle are defined by a stud extending radially from the operating handle body and located in a slot in the one piece outer body with at least one recess in one of the walls of said slot, said shank being capable of being accommodated automatically in its working positions by means of a compression spring which axially abuts said operating handle and said internal cone urging them away from each other.

5. A gas cock according to any one of the preceding claims, wherein the inlet and outlet passages provided in the one piece outer body are angularly offset relative to one another by at least 90 degrees.

6. A gas cock according to any one of the preceding claims wherein the inner valve body is provided with at least two radial perimetral passages of different diameters which are angularly offset relative to one another and connected to the inner axially extending passage in such a way that when the inner valve body is rotated, at least three working positions are established, these positions being respectively fully closed, half open and fully open.

7. A gas cock constructed and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.