Patent GB-190205426-A (GB)
Title: Improved Apparatus for Heading or Capping Tins or Cans
Inventor: GUENTHER HENRY LOUIE
Filed: 1902-03-04
Granted: 1902-08-07
Abstract: 5426. Guenther, H. L. March 4. Metal, sheet, seaming &c.-Relates to machines for sealing the heads of cans or tius used in packing various food products. The machines are so constructed that the heads are placed automatically in position on the can bodies, the flanges thereof double-seamed, and rendered completely airtight without solder or the like, and the finished cans expelled. Fig. 2 shows in plan a section through the machine, Fig. 9 a plan of the mechanism for pushing the can bodies and can heads into position and for ejecting the finished cans from the machine, and Fig. 24 a sectional side elevation of the can body with the head crimped thereon, and Fig. 30 a plan of a modified form. By means of a series of cams arranged upon the main shaft, and by interacting cam rollers and levers, the various operations for effecting the feeding of the bodies and the covers, their union, and their discharge are synchronously performed. The intermittently-revolving, horizontally-disposed platen B, is constructed with notches B', having retaining-devices for holding cylindrical can bodies C. In front of the platen is deposed the canbody feeding-mechanism ; at the left the can head : feeding-mechanism E, the heads being pressed on by the plunger G ; at the rear a pair of rapidlyrevolving supports with spindles I, I<1> whereby the can bodies with their head are subjected to the crimping or double-seaming action of a crimping- roller J and to that of a compressing-roller K ; while at the right of the platen is arranged the device L for removing the finished cans from the machine. In particular, the notches of the platen for receiving the can bodies C are fitted with clamping-dogs and springs. The platen is intermittently rotated by means of a detent-wheel in gear with a wheel at the upper end of the shaft B<8> which carries the platen. The intermittent action of the detent-wheel is obtained by the revolution of an arm, which, by a roller, engages the detentwheel, a suitable locking-arrangement being provided for preventing accidental movement when the roller is travelling in the recesses of the detent-wheel. In order to bring the tops of the can-heads into position for crimping and compressing, the shaft B<8> carrying the platen receives a vertical movement in its bearings by a forked crank reciprocated by a cam and roller. To feed the cans C to the platen, the travelling belt D' is employed, the pulley D<3> being hung so as to permit its vertical adjustment. Bell-crank levers D'‹ restrain the feeding of the cans until a notch in the p'aten presents itself. The release of these levers takes place simultaneously with a thrusting by means of the pusher Q<2> of a can into place upon a table A<3> where, by means of the pusher R, it is inserted in a notch on the platen. Simultaneously with these movements, a can-head from the feeding-mechanism E is placed by the pusher E<1> upon the platen F, and the finished can expelled from the machine through the shoot L by the device L', the respective motions being given through overhead cams, rollers, and suitable levers. As regards the can-head mechanism, the heads are placed by an operator upon the revolving disc E<3> so that it carries them under the shield A<10> on their way for junction with the can-bodies. By means of bell-crank levers, such as E<8>, and other levers, the passage of the heads is arrested until the pusher E<1> is ready to insert a head in a notch in the intermittently-rotating platen F. On the presentation of a head to a body, a plunger G descends and effects the junction. The can is then passed to be crimped by the roller J, for that purpose being received upon a revolving support which is capable of a vertical movement by means of collars forked arms, and levers and cams. At the same time pressure is brought to bear upon the can-head by a vertically-moving rotating spindle I<3>. The head of the spindle is formed with an annular flange to engage a recess in the can-head, the flange having a straight outer face to form an abutment when the flange of the can and the can-bead are compressed by the roller. The shaft L<3> is hollow in order to contain a pusher-rod. In a similar manner, the compressing operations are performed by the roller K. The crimping-roller and the compressing-roller are each situated at the end of a bell-crank lever which is connected to a spring- pressed rod J<2>, K<2> within the cylinders J<5>, K<5> the latter being reciprocated at the proper intervals from cams upon the machine. The positions of the levers carrying the rollers are capable of adjustment by means of the bracket U' and screw arrangements U'. The finished can is brought to the device L<1> whereby it is removed from a notch in the platen B to the shoot L. To prevent the platen from moving accidentally, the locking- detent V is provided, the release, by suitable arrangements, being effected at the proper time. In a modification, Fig. 30, the can-feeding mechanism, the can-head platen, and the plunger are dispensed with. A feed-wheel q<2> takes the place of the first pusher Q', the can-body being pushed into a notch in the platen b by the head r operated in conjunction with the ejecting-head l<1>. The crimping and compressing rollers are shown at j, k.