Patent GB-190415914-A (GB)
Title: Improvements in Machines for Operating on Cans or other Receptacles.
Inventor: HANFORD CORNELIUS HOLGATE
Filed: 1904-07-18
Granted: 1904-09-22
Abstract: 15,914. Hanford, C. H. July 18, A.D. 1903, [date applied for under Patents Act, A.D. 1901]. Metal, sheet, seaming and joining.-Relates to a machine for fixing covers on filled cans. The cans are supplied to the machine by a shoot which places one of them in position on the slide L, Fig. 3. This slide has an extension L<1> and a projection l at the end thereof, which works in a slot in the underside of the movable clamp section H, which thus moves the slide by means of the shoulders h<7>, h<8>, which however do not come into play till the section H is halfway on its journey, so that the slide L only moves half the distance of the section H. The can is then gripped between the movable clamp section H and the fixed section G, both of which are shaped to take the can body. The section H runs in an undercut guideway, and derives its to-and-fro motion from the double rack I and a toothed segment K keyed to a shaft K<1> geared to the driving- shaft. In its forward position, while the can is being operated upon, the clamp section H is locked by the end of the rack I falling into the cut-away portion of the guide J and being brought up against the shoulder J'. It is released by the horn K<3> on the toothed segment K, which comes against the pin I<3> and lifts the rack as shown in Fig. 17. In the modification of this mechanism shown in Fig. 7, the flange E<6> passes behind the antifriction roller I<5> on the stud I<6> and holds it till the wheel E<5> has passed round. The hopper 0', Fig. 4, is provided to deliver the covers to the opening O above the clamp, this opening being closed, when the clamp is open, by the gate O<3> which is rigidly connected to the clamp section H. An inclined plate moving with the gate forces a cover through at the required moment. The plunger P, Fig. 6, then comes into operation, pressing the cover on to the can body. Its downward motion is derived from the roller C, Fig. 3, which is given a reciprocating motion from the cranked shaft D geared to the driving-shaft, and which in its motion rolls over and depresses the inclined plane P<5> rigidly connected to the plunger. The crimping-jaws V, W, Fig. 6, then come into play and fix the cover, the former being operated by the inclined planes V<3> U<1>, S' T<1>, the slide S being operated by the roller C and spring T<3>. The jaw W is slidably connected to the clamp section H and moves with it, but is brought into action by the slide D', Fig. 3, worked from the main shaft. The jaws, when released, are forced out of contact with the can by the springs V', W<4>, Both the jaws are made adjustable to compensate for wear &c., the former by the screw T<5> and the latter by a series of packing-rings d<1> in the slide D<2>. The clamp then opens, and the finished can is removed by means of the pin N, Fig. 1, working in the slot n of the plate N' and given a reciprocating motion by the eccentric N<3> and lever N<2>. The pin L<2> on the slide L, which occupies the groove G<2> when the clamp is closed, ensures the can coming away from the clamp section G, or the section G may be provided with a spring for the purpose. The motions are so arranged and timed that a can is completed in one revolution of the main shaft.