Patent GB-646441-A (GB)
Title: Improvements relating to machines for applying and sealing closure caps to bottles, jars, cans and like containers
IPC: B67B3/02
Filed: 1947-09-19
Abstract: 646,441. Applying closures to bottles &c. ANCHOR HOCKING GLASS CORPORATION. Sept. 19, 1947, No. 25609. Convention date, Sept. 20, 1946. [Class 125(ii)] A machine for. applying and sealing skirted closure caps with gaskets therein to bottles, jars, cans and like containers by sliding the closure skirts with: the gaskets therein over side walls of the containers for sealing contact therewith, comprises means for forcing the closures with gaskets therein downwardly onto the containers by moving over and pressing downwardly upon upwardly disposed spaced portions thereof, and associated means closely adjacent said first means for engaging the closures to cooperate with said first means in placing the closures on the containers, such that the first means and the associated means both engage closely adjacent portions on the top of each container closure during the placing operation. The machine shown is a modified form of that described in Specification 618,772, the main features of difference being as follows: the helicoid 9, Fig. 2, is pivotally mounted on arms 86, 88 so as to be adjustable towards or away from the conveyer 5; a retarding member 12 is provided to press the containers against the helicoid fin 84; the cap-applying mechanism includes a further member such as 202, Fig. 15, or 212, Fig. 28, for cooperating with the fork 193 to apply the caps; means are provided for disconnecting the drive to helicoid 9, head-spacer 17, or cap feed 15 if the containers or closures jam, without disturbing the synchronism of drive on resumption; and the superheater construction is modified. The machine may be operatively connected to a filling machine, the latter being driven from the driving motor of the sealing machine. Cap-applying mechanism. A closure 151a is retained at the foot of shoot 150, Fig. 15, by projecting stops and by a magnet 206 on a pivoted arm 202. As the closure is removed by a passing container it is raised over the stops and is held in proper position by magnet 206 until it is engaged by the fork 193 which forces the closure into temporary sealing engagement with the containers. Arm 202 may be replaced by a T-shaped arm having a pair of laterally-spaced magnets at its lower end. The stops may be in the form of rotatable projecting discs. In an alternative arrangement, Fig. 28, arm 202 is replaced by a leaf spring 212 attached to the fork-carrying member 195b and a pivoted arm 215 limiting the lower position of spring 212; the fork 193b is tiltably secured to member 195b for adjustment to irregularities in containers. Steam-injection. Steam is injected into the container headspace through ducts 225, 226, Fig. 15, after being superheated by electric heaters 227 in parallel conduits 218 (not shown) and 219. Steam is supplied at 3 or 4 lbs. pressure through a pressure-reducing duct to conduit 218, and thence passes to conduit 219 via a thermostat chamber 222. In an alternative construction, Figs. 31, 32 (not shown) the thermostat is arranged between the second heater and the outlet ducts.