Patent GB-190401311-A (GB)
Title: Improvements in Sheet Metal Stoppers for Bottles, Jars, and the like.
Inventor: HEIDE HENRY CONRAD
Filed: 1904-01-18
Granted: 1904-05-05
Abstract: 1311. Heide, H. C., [Weissenthanner, A. L.]. Jan. 18. Stoppers; capsuling and sealing bottles, jars, and the like; capsules, bottle, jar, and like; opening bottles, jars, and like vessels.-For closing bottles and jars, a stopper or capsule is stamped out of one sheet of metal, which is of such a contour that when clamped ou to the neck of the vessel, one or more depending lever-like strips are formed, by lifting which the capsule can be torn off. Fig. 1 shows a metal capsule for use with small necks, in which a flange 1 is bent into locking contact with the shoulder on the bottle neck. A depending tongue 4 is bent on to the outside of the neck, and is sufficiently rigid to enable the flange, which is weakened by one or more slots 6, to be released by its means from the neck of the bottle. A recess 7 cut in the edge assists in the separation if necessary. From the opposite side of the capsule depends a similar tongue, to assist in removing the torn capsule from the bottle, the ends of both tongues being turned up to form a small fold 8. Instead of the recess 7, locking engagement with the bottle shoulder may be interrupted for some distance round the flange. For bottles in which the shoulder is remote from the mouth, a vertical slot 20, Fig. 7, is provided in the flange, to enable it to be torn easily. The depending tongues may also be made narrower, as at 14, Fig. 7, and stiffened longitudinally by a rib or ribs 16. The modification shown in Fig. 12 is applicable to receptacles with large mouths, the depending tongues being in duplicate, and a recess 36 formed in an enlargement 37 in the neck of the vessel. With a neck of this construction, the tongues are easily engaged by the fingers. The flange may be weakened as before by vertical slots, and the tongues narrowed and stiffened by ribs stamped up in the metal. The capsule may be locked on to the neck by a machine having a tool which forces the flange into position either on all sides simultaneously, or by a progressive action as in spinning. It may also be shaped previously, as in Fig. 17, where a stopper having a groove 58 in its depending tongues, which may also be extended round the circumference of the flange, is adapted to be sprung over the top of a tumbler. To secure a firmer hold, inwardly-bearing lips 60 are provided in the flange and stiffened with vertical corrugations. The packing consists of a sheet extending across the top of the receptacle, and held round the edge between the receptacle and flange of the stopper, the latter being pressed down into close contact with the receptacle after having been placed in position over the mouth. Fig. 20 shows a modification in which the crown portion 71 of the stopper is made integral with a detaching tongue 76, an opening 78 in which is engaged in the locking position by fingers 77 on the flange 72, transverse cuts 80 being provided in the flange to facilitate removal of the stopper. In Fig. 26, weakening rectangular slots 90 are made in the flange, leaving necks 89 between them and notches in the flange adjacent to the tongue.