US415992A - Head-holding jaws for can-heading machines - Google Patents

Description

(No Model.) 2 Sheets--Sheet 1. E. E. ANGBLL.

HEAD HOLDING JAWS FOR (JAN HEADING MACHINES.

No. 415,992. Patented Nov. 26,1889.

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(No Model.) 2 Sheets-Sheet 2. E; E. ANGELL. HEAD HOLDING JAWS FOR CAN HEADING MAGHINES. No. 415,992.

Patented Nov. 26, 1889.

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UNITED STATES PATENT OFFICE.

EDW IN E. ANGELL, OF BOSTON, ASSIGNOR OF ONE-HALF TO E. B. W ELCl-I, OF CAMBRIDGE, MASSACHUSETTS.

HEAD-HOLDING JAWS FOR CAN-HEADING MACHINES.

SPECIFICATION forming part of Letters Patent No. 415,992, dated November 26, 1889.

Application filed February 18, 1889. Serial No. 300,248. (No model.)

To all whom, it may concern.-

Be it known that l, EDWIN E. ANGELL, of Boston, in the countyof Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Head-Holding Jaws for Can-Heading Machines, of which the following is a specification.

This invention has for its object to provide means for holding flanged can-heads and ap- IO plying the same to cylindrical bodies.

The invention consists in the improved means which I will now proceed to describe and claim.

In the accompanying drawings, forming a part of this specificationfliigure 1 represents a side elevation of my improved can-headholding jaws. Fig. 2 represents a top view of the same. Fig. 3 represents a section on line 00 00 of Fig. 1; and Figs.% and 5 represent,

respectively, front and rear elevations of the improved device.

The same letters of reference indicate the same parts in all the figures.

In the drawings, represents a head or 2 5 holder havin in'one end a cylindrical cavity 1), and having a longitudinal passage extending through it and through its reduced rear end for the reception of the sliding rod 7*.

(1 represents a plunger or disk attached to 0 one end of the rod 7' and located within the cavity 1?.

u represents a spring interposed between the plunger q and the inner end of the cavity 1), said spring tending to press the plunger q 3 5 outwardly in said cavity, for a purpose to be hereinafter explained.

in m represent levers pivoted upon bolts 7o 7:, which are inserted in ears formed on the exterior of the holder j. On the forward ends 0 of the levers m are formed jaws m m, forming collectively a ring which stands over the end of the holder j, the inner edge of said riu g projecting slightly inside of the diameter of the cavity 1.), so that it will bear against 5 and act as a stop for the edge of the flange formed on the can-head inserted in said cavity. In the upper side of the holder j is a slot 0, through which a can-head may be droppedinto the cavity 1). The rod ris moved 5o backwardly prior to the insertion of the canhead in the slot 0, so as to form a space for the can-head between the plunger and the jaws m.

The mechanism whereby the rod is moved backwardly is shown in another application, 5 5 Serial No. 300,249, for Letters Patent for improvements in can-heading machines, filed concurrently with this application.

15 represents a plate fitted to rotate or oscillate on the reduced inner end of theholder j and provided with cam-shaped slots 16 16, which receive the rear ends of the levers m m. WVhen said plate is turned in one direction or the other, the jaws are opened or closed, as the case may be. The plate 15 is provided with an arm having a slot 17, which receives a stud 18 on the lever 19, which is pivoted to the arm of the machine, and is oscillated by mechanism shown in the application above referred to. The holderj is movedlongitudi- 7o nally, and is thereby caused to advance toward and recede from the end of the can-body,

as shown in the said application. hen the holder j is moved away from the can-body, the rod 2" and plunger (1 are given an additional movement in the same direction, thus forming a space for the reception of the canhead in the cavity 1.). After the can-head is inserted, and while the holderj is moving toward the can-body, the rod 1" and plunger q are released, and the spring 1: causes the plunger to press the flange of the can-head against the inner side of the jaw m, the can-head thus being securely held while it is being applied to the end of the can-body. At the S 5 same time the spring c permits the plunger (1 to yield in case there is any unusual resistance to the application of the can-head to the can-body, thus preventing breakage or injury of the parts through which the applying 9o pressure is exerted. The circle formed by the inner edge of the jaws m is projected of the same diameter as the can-body, so that when the holder j is advanced to apply the can-head the jaws m m closely embrace the 5 can-body. After the can-head is in place on the body the jaws m are opened to clear them from the can-head flange just before the backward movement of the holder j, and after the jaws have passed over the can-head they are I00 closed, so as to be in position to retain the next can-head dropped into the cavity 1).

' The operation of the devices above described in connection with the organized machine with which they are used is fully described in the application above referred to, to which reference may be had. I desire to state, however, that the devices forming the subject of this application may be used independently of the mechanism accompanying the same in said organized machine, or with any other suitable mechanism adapted to act conjointly with the said device in applying a flange to a can.

I claim-- 1. In a can-heading machine, the combination of a head holder or carrier having a headreceiving cavity, movable jaws at the mouth of said cavity, levers pivoted to said head holder or carrier, and non-spring-actuated devices for positively operating said levers in both directions to open and close said jaws, substantially as set forth.

2. In a can-heading macnine, the combination of a head holder or carrier having a head- 25 receiving cavity, movable jaws at the mouth of said cavity, levers pivoted between their ends to said head holder or carrier, and nonspring-actuated devices at the rear ends of said levers for positively operating the same in both directions to open and close said jaws, substantially as set forth.

3. In a can-heading machine, the combination of a reciprocating head-holder having a head-receiving cavity, movable jaws at the mouth of said cavity, pivoted levers supporting said jaws, and an oscillating plate having cams engaging said levers, whereby the jaws are opened and closed, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 31st day of January, A. D. 1889.

EDWIN E. ANGELL.

Witnesses:

G. F. BROWN, A. D. IIARRIsoN.

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