US15961A - Improved machine for making brass kettles - Google Patents

Description

i .To all whom it may concern:

NiTnD STATES PATENT muon.

n. c; nLAKnsLnn, n. rLATT, Ja., AND n. JORDAN, on WATDRBURY, OONN.

IMPROVED MACHINE FOR MAKING BRASS KETTLES.

Specification forming part of Letters Patent No. 15,96 ll, dated October 2S, 1856.

Be it known that we, EDWARD C. BLAKns- Lian, ENoon PLATT, Jr.,andEDMUND JORDAN, all of the city of Waterbury, in the county of N ew Haven and State of Connecticut, have invented a new and useful Improvement in Machinery for Making Brass Kettles from Sheet-Brass, and we do hereby declare that the following is a full, clear, and exact description of the construction, character, and operation of the same, reference being had to the accompanying drawings, which make a part of this specication, in which- Figure l is a perspective View of the machine. Fig. 2 is a longitudinal section cut vertically through the center.

Our improvement consists in so constructing the machine that while the male die or punch is forcing the centralpart of the sheet metal into the f'emale part a set of rollersimpinging on that part of the sheet metal or blank which is outside of the female part, and rolling or pressing it against a revolving disk or rim, will continually roll the metal thinner as it approaches the top of the kettle, so that by taking sheet metal rolled to theproper thickness for the bottom of the kettle and placing it inthe machine in the proper position for the dies and rollers to act upon it by the rotary motion of the female die and the proper feed motion of the male die and reducing-rollers the kettle will be formed thick at the bottom and gradually decreasing in thickness to the top, the proper shape for the metal to form the most durable kettle which can be made of that size and that weight of `metal similar to those made by hand.

Ve make the frame-work, of cast-iron or any yother suitable material, substantially in the form shown in the drawings.

We make the female die, of cast iron or any oth er suitable material, of the proper form for the kettle, as seen at A, Fig. 2, and with a substantial circular disk or rim, as shown at B B, Figs. l and 2, against the face of which the reducing-rollers a a, Figs. l and 2, (with others not seem) press the sheet metal, to reduce the thickness toward the top. We attach this female die to a shaft, C, and to this shaft C is also attached a pulley, D,Figs. 1 and 2, to which we apply the power (by a band) to revolve the female die; (or a gear-wheel may be used when thought best.)

Ve make the male die or punch E, Fig. 2, of cast-iron or any other suitable material, of theform of the inside of the kettle, as shown in Fig. 2, and slip it onto the end of the shaft F, Fig. 2, `so that it may revolve, ,to prevent friction or straining the brass when the female die is revolved.' This shaft F slides freely in the hollow shaft G, Figs. l and 2, and, by means of a screw, b, revolved by the wheel H, the male die C is forced into the female die A, to raise or form the kettle or to draw it back after the kettle is formed.

We make the reducing-rollers c c (of any desired number) of cast-steel or any other suitable material, and iinish their peripheries crowning, so that they may impingeonly on a very limited surface, to make the reducing easy. We fit them into the proper holders, c c, and pass the Shanks of these holders through holes,(to work freely,) in adisk or rim, I, Figs. l and 2. le attach this disk I firmly to the hollow shaft or collar K and pass-it onto the hollow shaft Gr, which shaft G has a male thread or screw, d', in which the female thread of the circular nut c works, to force up the reducing-rollers or to let them back.

Having made and arranged the parts as be` fore described, we place the central part of the blank or piece of sheet-brass of which the kettle is to be made or formed over the female die A, Fig. 2,- and turn the wheel H in the direction indicated by the dart in Fig. 1,which will revolve the male screw b, Fig. 2, to force the male die E, and with it the sheet metal, into i the female die A, and by turning the circular nut or female screw e in the direction indicated by the dart in Fig. l, it willsforce the hollow shaft or collar K and diskl toward the female die, and consequently the reducing-rollers a c against that part of the blank which rests against the rim B B. XVe then apply the power to the drum or Vpulley D, and so revolve the female die A, with its disk or rim B B, which will cause the reducing-rollers c a to roll over the sheet metal or blank and reduce it gradually to the decreasing thickness desired; and if the male die be continually pressed into the female die with the proper velocity by revolving the wheel H,(either by hand or other power,) and the reducing-rollers: be pressed against the blank with the proper force, by turning the circular nut or female screw e until the male die has forced the central Vpart of the blank tothe bottom of the female die the blo reducing-rollers L a, and the whole s con kettle will be perfectly formed; and by turnstruoted, arranged, and made to produce the ing the Wheel H and nut c in the opposite diresult substantially in the manner and by the reoton to that indicated by the darts the ketmeans 'herein set forth. tle may be taken ont and another blank sub- E. C. BLAKESLEE. st1tuted, and so on. 1 T

1th 00H` PLATT, JR. What We olalm as our lnventlon, and desue EDMUND JORDAN to secure by Letters Patent, is-

The combination of the revolving female die i Vitnesses: A and its disk or rim B B with the male die H. HIGGINS, E when these are combined with the adjustai R. FITZGERALD.

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