Patent GB-189722168-A (GB)
Title: Improvements in and relating to Machines for the Manufacture of Metal Cans and similar Articles.
Inventor: YOUNG DAVID
Filed: 1897-09-28
Granted: 1898-03-12
Abstract: 22,168. Young, D., [Page, W. B., and Hopkins, A. E.]. Sept. 28. Making cans &c.-Relates to mechanisms for feeding the blanks, from which can or like bodies are to be formed, successively from a pile, shaping and cutting off a strip of solder, placing and folding it over one edge of the blank, applying flux to the solder, and feeding the blank forward to the machine for forming the body of the can &c. Any of these mechanisms may be used separately, or all combined together as shown in the Figures. Fig. 1 shows a plan, Fig. 2 an elevation, and Fig. 3 a section of the apparatus. The pile of blanks is supported on a table B in a cage or hopper B', B', at the sides of which are situated four knives mounted on shafts carried in brackets C. The shafts are driven by bevel gears E<6> on two shafts E, E<1> geared by wheels at E<2> to an intermediate shaft E' operated by a chain gearing E', E<9>, from a shaft F actuated by spur gearing from the cam shaft 25. The knives D<6>, D<7> enter and part the stack of sheets, lifting the major portion, the knife D<5> parts the remainder, and the knife D<4> entering lower leaves only a single plate below on the table B. This plate is then pushed out of the hopper through a guide J to the rolls M<3>, M<4> by a slide b<6> reciprocated in a slot in the table B by link mechanism and the cam b<13>. The strip of solder G <3> from a reel G' carried by a spring lever passes over a guide-roller G<4> to a pair of disc rolls at H' mounted on shafts H<1>, H' which give a V-shape to the strip and feed it into a similarly-shaped recess in the guide J. These rolls are geared together, and the shaft H<1> is actuated by a cam G<10> through adjustable link mechanism and a spring pawl G" and ratchet-wheel G<8>. The feed of the solder strip is stopped by a curved arm H<7> engaging the pawl G<11> and holding it out of action. When the feed is to take place, a blank leaving the rolls M', M<4> strikes and swings a pivoted arm, which acting through link mechanism lifts the curved arm H<7> and the pawl is allowed to engage a ratchet-wheel. The guide J, Fig. 11, is formed of two parts j, j<1> with a V-shaped recess j<2> between, for the solder strip, a length of which is cut off by a knife working in an inclined slot in the guide and carried by an arm on a shaft oscillated against the action of springs by a projection on the cam G<20> and link mechanism. The blank enters the flaring mouth J<3>, and advances with a solder strip through the opening J' to the rolls, thus folding and pressing the solder over the edge of the sheet. The blank passes from the rolls through a guide N', and is traversed in a direction at right-angles to its former path by projections on chains P, P<1>. As the blank travels along, a spring-actuated lever R, when released by a cam, forces the blank further over, so that its solder-covered edge will pass between two felt-covered discs Q', the lower one of which rotates in a trough Q<8> containing a flux. The shaft 25 is driven from the main shaft through spur gearing and a chain passing over a wheel 27 on a loose sleeve 26. A pin 30, projected by a lever 31 and spring 33, through a boss 29 on the wheel 27, engages a spring pin 36 carried in an oblique boss 35 on an arm 34 keyed to the shaft 25, In case of unusual strain, the spring pin 36 yields, allowing the shaft to remain at rest, or the pin 30 may be drawn back clear of the pin 36 by pressing a sleeve 38 bearing on the end of the lever 31. The sleeve 38 may be actuated by the hand-lever 42, or by mechanism from the machine to which the can body blanks are fed. The pulley for driving the main shaft 1, Fig. 20, of the apparatus is loose and is clutched to its shaft by the flange 4 on its boss being grasped between a ring 10 and a flange 7 on the sleeve 6 keyed on the shaft. The ring 10 and flange 7 are approached against the action of springs 11, by the ends 18 of links 17 bearing against the flange 7 and washers 19 on the bolts 9. The links 17 are operated by a sliding collar 12 moved by a hand-lever.