Untitled record

Application filed December 18,1893. Serial Ko. 494,000, (Komoiel.)

To all wham it may concern:

Be it known that I, Henry Schaake, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State 5 of California, have invented certain new and useful Improvements in Can-Heading Machinery; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled io in the art to which it most nearly appertains to make, use, and practice the same.

The present invention is designed for the placing of can-heads inside of can-bodies and may be termed an “ inside heading machine 15 for can-bodies,” it belonging to that class of headers set forth in Letters Patent N0.235,700, granted to George H. Pierce on the 21st day of December, 1880, and the invention relates more especially to the construction of the 20 header and retaining jaws, or what is more commonly known as the “molds.”

In the Pierce paten t, No. 235,700, two.operations are required before the head is applied to the can-body, the first being the flaring 25 outwardly the end of the can-body and the second forcing the end or head into the expanded end, the machine being an intermittent rotating one. This double operation necessarily greatly delays the heading of the 30 can-body and prevents the output of a great number of cans per day.

My invention has for its object to facilitate the heading of cans by increase in the rapidity by which the head is applied, this being 35 accomplished by applying the head in one operation.

This machine is designed more especially as an improvement upon the can-heading machine covered by Letters Patent granted to 40 Chas. B. Kendall on the 21st day of April, 1891, No. 450,624, and like said patent I make * employment of oppositely-rotating mechanisms, carrying header and retaining jaws, but with this difference, that in my machine the 45 head is applied inside, while in Patent No.

450,624 the head is applied outside. By prefence I locate the oppositely-operating mechanisms one above the other, for the reason that less space is occupied by the machine, 50 which is an important consideration in can factories.

The manner of securing the header and re taining jaws to the oppositely-operating mechanisms, of causing the closure or bringing of the jaws together so as to inclose the can- 55 body, of feeding the can bodies and heads to the jaws, aud of forcing the pistons inward so as to insert the flange of the can-heads inside the can-body being the same in construction and operation as the mechanism fully set 60 forth and described in the aforesaid Letters Patent No. 450,624, detail description need not be given in this specification, for no claim is made thereto except in combination with my specific improvement, which relates to the 65 jaws for receiving and so holding the canbody as to permit the flange of the can-head fitting inside thereof.

In order to more fully understand my invention, reference must be had to the aceom- 70 panying sheets of drawings, wherein—

Figure 1 is a vertical sectional view taken on line x x, Fig. 2. Fig. 2 is an end elevation showing the trackways for forcing the header and retaining jaws to and from each other in 75 order to cause the closing and opening thereof. Fig. 3 is a detail longitudinal section of a headed can-body; and Fig. 4 is a side elevation of the heading-machine, showing position of the can-body, can-head, and discharge-chutes 80 for the cans.

In the drawings, the letters A A' represent two pairs of plates mounted upon shafts B B', which plates are bolted or otherwise secured to a vertical frame A³. (See Fig. 4.) Said plates 85 are arranged above each other, as shown in Fig. 1. From the inner face of these plates project the ribs which form circular pathways or tracks C O' C³ G⁸.

To the drive-shafts B B', I rigidly fasten the 90 disks D D', which are rotated and carried around with the movement of the drive-shafts, said disks being located between the stationary plates A A'. These disks carry around the trucks E E', which are mounted upon 95 axles a a', upon, the outer ends of which are secured the rolls & b', which travel within the circular trackways C^s G, and serve to throw the trucks in or outin order to force the header and retaining jaws G G' to or from each other. 100 These jaws are mounted upon the shafts gg'. In order to facilitate and secure a perfect registering of the header and retaining jaws I provide the rolls e e', which are held in place

548,463 upon the brackets ff' by pins c c'. These rolls travel within circular trackways C' C², as shown.

Through the header-jaws work the pistons F F', which force the can-heads into the can bodies. These pistons are surrounded by springs g² and are forced inward by the rolls h, engaging with the cams h' during rotary travel of the trucks and header-jaws. After the rolls h move from engagement with the horizontal cams the resiliency of the springs g² forces the pistons outward.

All of the foregoing parts and the operation of each will be found fully set forth and described in Letters Patent No. 450,624.

The present machine is provided with feedchutes for the heads and bodies, as will be seen by reference to Fig. 4, wherein J' indicates the can-bodj’ feed-chute for supplying the bodies to the jaws of the header, J the chutes for supplying the heads or ends thereto, and J² the chute for receiving the headed cans as discharged from the machine.

Within the inner face of each jaw I cut two semicircular grooves Η II', which when the jaws are brought together form a complete circular space of greater diameter than the diameter of the jaws. The material intermediate these grooves Islightlj’ cut away, so that the diameter of the jaws between the points 1 2 when closed will be greater than from 4 3, or that portion of the jaws which encircle the can-heads, say, for the thickness of a sheet of metal.

The can-body I when the jaws are closed will be held within the larger diameter, the ends thereof projecting within the annular grooves and coming flush with the inner face of the smaller diameter containing the canheads I'. . When thus held, the can-heads I' are forced into the can-body as the pistons are moved inward by the action of the horizontal cams.

Theobject in providingtheannular grooves in the jaws is to permit the ends of the canbody to expand somewhat as the can-heads are forced therein, in order that a tighter joint may be formed.