Patent GB-190423723-A (GB)
Title: Improvements in or relating to Non-refillable Bottles or Liquid Receptacles.
Inventor: BERTIN EUGENE GABRIEL ANDRE
Filed: 1904-11-02
Granted: 1904-12-15
Abstract: 23,723. Bertin, E. G. A. Nov. 2. Stoppers; refilling, preventing.-For preventing the refilling of bottles or other liquid receptacles, the neck of the vessel is provided, as shown diagrammatically in Fig. 1, with a valve seat k, a valve m of any suitable shape, and two baffles g, h having openings which are arranged out of alignment, to prevent the valve from being tampered with, the valve being normally held in its seat by a weight p, which is connected by a flexible cord q to the valve spindle m. The spindle works within a guide-tube n, which is of such length that it extends below the lower end of the spindle when the valve is seated, so that the lower end of the tube forms a bearing on which the cord can slide freely, to enable the weight to act on the valve. The weight p is sufficient, when immersed, to close the valve, except when the vessel is inverted to pour out the contents ; when the vessel is inverted, the weight of the liquid added to the weight of the valve is sufficient to overcome the weight p. In the particular construction shown in Fig. 2, the neck e is made separate, and is united to the collar c on the vessel by a fitting f, which screws into a fitting d on the collar, the joint being protected by a seal. The valve seat k is secured within the collar c by a packing-washer l, and the guide-tube n, which is rounded at its lower end, is carried by a bar o formed integral with or separate from the valve seat. The valve is of cup-shaped form, its seating surface being conical ; or, the valve may be flat, conical, orcylindrical. The valve spindle extends upwards, and works in a guide i on the baffle g. In the modification shown in Fig. 4, the neck is integral with the vessel, and the baffles are secured by cement &c., or by a wire, introduced through apertures u into coincident grooves in the neck and baffle. When wire is employed, the apertures u are preferably tangential to the grooves, which are divided to form two chambers, each in communication with one of the apertures u, so that the wire cannot be pushed out. The baffles rest on projections r on the valve seat. The guide i is formed in the baffle h, and the valve seat k is ground to the shoulder of the vessel. In the form shown in Fig. 7, the valve seat is cast integral with the guide-tube, which is provided with lateral parts Z for the outlet of the liquid. The baffles rest on the bedding y, and the valve has its seating surface near the top. The upper part 10 of the valve may be reduced, and the lower part increased, if desired ; Fig. 10 shows a form in which the top part is omitted, so that the whole body of the valve comes below the top of the seat when the valve is seated. To prevent the valve from sticking, it may be formed, as shown in Fig. 13, with a knife-edge 7 bearing on a flat seat 8 or a curved seat 9. To dispense with grinding, a piece of felt, or an inflated air pad of bladder &c., may, in some cases, be interposed between the valve and its seat To ensure a continuous outflow when the neck is narrow, the neck may be provided at its narrowest part with a partition, to form separate passages for the outflow of the liquid and the inlet of air ; or, the air inlet may be extended by means of a tube 5, Fig. 12, to reach to the bottom of the vessel. The tube may be provided with a small ring 6 for the passage of the cord q.