Patent GB-668190-A (GB)
Title: Combined closure and pouring spout device for liquid containers
IPC: B65D47/20
Filed: 1949-06-17
Abstract: 668,190. Container closures. DEMARCO A. H. and KORINEK, F. J. A. June 17. 1949 [March 22, 1949], No. 16218/49. Class 125 (iii) A combined closure and pouring spout device 3 for liquid containers 1 comprises a body portion with a part spherical surface 4, a radially projecting spout 6, a groove or the like 7 in the part spherical surface adjacent the spout and extending over the surface of the spout to near the free end thereof, and a further groove or the like 9 on the part spherical surface opposite the first groove, the device being adapted to be seated in and rotated relatively to the neck aperture 2 of the container with the part spherical surface maintaining sealing contact with the rim of the aperture between a pouring posi. tion wherein the groove 7 communicates between the interior of the container and the spout and the second groove 9 communicates between the interior of the container and the ambient air, and a position in which the sealing contact between the part spherical surface and the rim is uninterrupted, means being provided for clamping the device to the container while permitting this operation. The segment 4 seats upon a disc shaped shoulder 5 which forms a laterally projecting flange and the upwardly projecting spout 6. The container is closed by rotating the segment 4 so that the spout is raised until the opposite part of the disc 5 contacts the rim 2, as in Figs. 5 and 10. This seal may be improved by suitably forming the seating surfaces, or providing a resilient lining to the neck or to the segment 4, or by forming the whole segment of resilient material. The device may be secured to the neck by the device shown in Fig. 4, comprising an arch 12 of resilient wire threaded through a bore 11 in the disc with the ends 12' bent at right angles and hingedly inserted in holes 13" of links 13, semi-circular arch segments 14, 15 surrounding the container neck with their ends inserted in holes 13<SP>111</SP>, 13<SP>1</SP> respectively of the links 13, and an arch shaped extension 16 on the links 13 having perpendicular portions 16<SP>1</SP> joined by an arch 17. When the links 13 are parallel to the neck rim the segments 14, 15 fit the neck tightly, but when the links are rotated the segments 14, 15 are spread apart to permit lifting of the device. The device shown in Fig. 5 is mounted so that it may be resiliently snapped from the open to the closed position, and vice versa. The closure has a raised portion 20 with an are section through slot 21 which has a convex bottom, and the arch 12 situated in the slot has volute shaped formations 22 at the ends connected to the vertical arms 12<SP>1</SP> to permit a resilient play of the arch. The radius of the slot 22 is smaller than that of the arms 12<SP>1</SP> so that the arch snaps into the end positions of the slot. i.e. to the open or closed positions. Alternatively the arch 12 may be rigid and the convex bottom surface of the slot 21 movable and supported by resilient members. The device may be sealed by connecting the arch 17 to the neck 2 by means of string or wire with a lead seal at the ends, and the arch 17 may be grooved to hold the wire. The seal may pass through a hole in the disc 5. In Fig. 7 the sealing wire 18 passes through a hole 23 in an appendix 10 of the flange 5 opposite the spout, and the appendix is weakened where it joins the disc by a kerf 24 in each surface, so that when the spout is depressed to open the container the end of the appendix breaks off. A design or seal 25 of sealing wax may be arranged partly on the disc 5 and partly on the appendix 10. The breakable appendix 10<SP>1</SP> may be separate and replaceable, and may be fitted in a groove in the disc 5 and secured by a screw 26 which secures the segment 4 to the disc, as in Fig. 10.