US412584A - Can-heading machine - Google Patents

Description

' (No Model.) 2She'etS-Sheet 1,

' E. E. ANGELL.

CAN READING MACHINE.

Patented Oct. 8, 1889.

&

\A/ITN ESSE Sii N4 P111155, PhnhrLltbognpher. Wilmington. 0.0

UNITED {STATES [PATENT OFFICE;

Enwrn EJANGELL, o BoSroN, ss enonor ONE-HALF TO wELoH, OF CAMBRIDGE, MASSACHUSETTS.

" QAN-HE ADlN G MACHINE.

SPECIFICATION formingpart of Letters Patent No. 412,584, dated October 8, 1889. Application filed February 18, 1889. Serial No. 300,247. (No model.)

To all whom it may concern.-

Be it known" that I, EDWIN E. ANGELL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new useful Improvements in Head-Holding Jaw- Operating Mechanism for Can-Heading Machines, of which the following is a specificaand it sition,

tion. a

This invention ,relates to machines for applying flangedheads to cylindrical can-bodies has for its object to provide means whereby the devices which present the canheads to the can-body to which they are to be applied may be caused to assume different angles duringthe operation, and thereby present the heads to the body inan inclined poand then bring the heads to a position parallelwith the ends of the can body, whereby each can-head is brought into contact with the can-body first at one side, and is then brought gradually by a tipping movement to a full bearing on the can-body. To this end the invention consists in-the improvements which I will now proceed to describe and claim. V

, Of the accompanying drawings,-forming a part of this specification, Figurel represents a side elevation of my improved head-applying mechanism, the same beingin position to holdthe can-head vertically or at right angles tothe axis of the can-body. Fig. 2 represents a top view of the same. ,Fig, 3 repre sents a side elevation showing the holder inclined, so as to incline the can-head. Fig. 4 represents a top View, the parts being as shown in Fig. 3.

The same letters'of reference indicate the same parts in all the accompanying drawings.

This mechanism forming the subj ect of this application is shown as a part of an organized machine in another application for Letters Patent for an improvement in can-heading machines, Serial No. 300,243, filed concurrently herewith, to which application reference may be had for a full description of the operation of the entire machine.

In the drawings, 9' represents one of the holders or. carriers shown in the application above referred to, there being two of said holders or carriers located at opposite ends of can-bodyholdin g clamps, whereby a can-body is held to permit said holders to apply the can-heads thereto, as described in said application. Each holder has connected to it by bolts or pivots 7c is two levers m m, having j aws m formed on their outer ends. Said jaws are semicircular and project over the inner ends of the holders j. A slot 0 is formed in the holder j behind the jaws m, to permit the insertion of the flanged can-head behind the jaws. Means are provided for opening and closing the jaws, as hereinafter described, and when the jaws are closed their edges coincide with the inner surface of the flange of the can head, so that the can-head cannot pass through the circular opening between the jaws m.

In each holder j is a cavity 19, communicating with the slot 0, said cavity receiving the can-head dropped through said slot. In the cavity 19 is a plunger or follower q, which is normally forced forward by a spring 41, the purpose ofwhich will be hereinafter explained. Said plunger (1 is attached to the rod r', which passes through the holder j, and is adapted to slide longitudinally in said holder and in a guide 3', which is formed on a swinging frame 5, and is fitted to move vertically in a slot 25 in an arm a, formed on a slide'w, which slide is fitted to' move between guides y y on the supporting-frame. On said slide are arms 2, to which are pivoted at 3 arms 4, formed on the swinging frame 8. The holder j is fitted in a socket in the frame 5, and said frame, with the slide w, is moved longitudinally to carry the holder j and its jaws 0% toward and from the can-=body, held by suitable clamps by a cam i on the shaft said cam receiving a trundle-roll 5, supported by an arm 6 on said slide. In addition to its longitudinal movement, the frame 5 has an oscillating movement on the centers or pivots 3, said movement being imparted by means of a vertical connecting-rod 6 and a cam-groove 7 in a disk 8, attached to the shaft f, said rod 6 being fitted to slide in guides 9, attached to the supporting frame. The rod 6 is pivoted to a collar'6, in which the rod 1" is free to slide lengthwise. The rotation of the cam 8 causes the rod 6 to alternately raise and lower the outer end of the rod 4. It will be seen,

therefore, that when the outer end of the rod 0* is lowered the jaw-carrier will be inclined, so that the can-head therein will be inclined from a vertical position,its upper portion being thrown outwardly farther from the end of the can-body to which it is to be applied than its lower portion,while the upward movement of the rod 7' will restore the can-head to a vertical position. The described movements of the rod 7" are so timed that when the slide w is moved outwardly to carry the jaws away from the can-body the outer end of the rod 0' is depressed to give the described inclination of the can-head, and when the slide w is moved in the opposite direction to carry the jaws toward the can-body the outward end of the rod 0* will remain depressed until the lower portion of the flange of the can-head comes to a bearing on the corresponding point of the can-body, after which the outer end of the rod *1 is raised, thus bringing the jaws and can-head to a vertical position and completing the application of the flanged head to the end of the can-body. The head is thus brought gradually to a bearing on the end of the body, the movement being similar to that employed in applying a flanged head or cover to a cylindrical box or can by hand, so that the head is more easily and certainly applied than it would be if held parallel with the end of the can-head when first presented thereto. The ofiice of the plunger q is to support the can head with a yielding pressure against the jaws m while the head is being applied to the can-body, the spring 4; normally pressing the plunger forward and permitting it to yield slightly, so that in case there is any unusual resistance to the applicationof the canhead to the body, caused by imperfections in the flange of the can-head or otherwise, the plunger q will yield, and thus prevent breakage of or injury to the parts through which the head applying pressure is exerted and imparted. The plunger is thrown back from the jaws to permit the insertion of a can-head while-the jaws are receding by means of a lever 12,which is pivoted at 13 to ears on the arms to of the slide 20, and bears at its upper end against a collar 14 on the rod 0*. The lower end of said lever projects below the slide 10, and is provided with an adjustable screw or stud,which,when the slide 10 is moving backwardly, strikes the fixed supporting frame, the lever 12 being thereby turned-on its fulcrum and. caused togive the rod 4" and plunger q an independent backward movement. \Vhile the plunger is thus held back a canhead is dropped into the cavity 1) through the slot 0, and when the slide w in moving forward to carry the jaws toward the canbody removes the lever 12 from contact with the supporting-frame the spring 1; forces the rod 0 and plunger q forward and-causes the plunger to hold the can-head flange against the closed jaws m. Said jaws remain closed during the application of the can-head to the can-body, their inner edges being flush with the inner surface of the can-head flange, so that they closelyembrace the-can-body when moved forward. The jaws are opened after the canhead is applied to the body by means of a plate 15, fitted to rotate on the carrier j, and provided with cam-grooves 16 16, Fig. 2, which receive the rear ends of the jaw-levers m. Said plate 15 has a slot 17, which receives a stud 18 on a lever 19, which is pivoted at 20 to the supporting-frame, and has at its lower end a trundle-roll, which enters a cam-groove in a disk on the shaft f. The rotation of the cam-disk causes the lever 19 to oscillate and in turn to oscillate the plate 15, the camgrooves 16 16 being thus caused to move the levers m m, and thereby open or close the jaws m m, as the case may be. The jaws are opened just before the carrierj is-moved outwardly away from the can-body, and are closed immediately after they have passed away from the can head flange, vso that they are in position to hold the flange of the next can-head in the manner already described.

I do not limit myself to the particular construction above described of the devices whereby the heads are clamped and released, but may variously modify the same without departing from the spirit of my invention.

The improvements herein described and claimed may be used in connection with any suitable means for holding a can-body While the head is being applied.

Iclaim- 1. In a can-heading machine, the combination of a can-head holder'or carrier provided with means for clamping and releasing a canhead, a reciprocating slide, to which said carrier is pivotally connected, and means for rocking the head or carrier on its .pivotal connection with the slide, whereby the canhead is tipped while being applied to the can-body, as set forth.

2. In a can-heading machine, the combination of a can-head holder or carrier provided with means for clamping and releasing a can-head, a reciprocating slide, to which said carrier is pivotally connected, a rod 1, connected to said carrier, and means whereby said rod is alternately raised and depressed to tip the carrier and the can -head held thereby, as set forth.

3. The combination of a can-head holder or carrier having a head-receiving cavity, intermittently opening and closing jaws in said holder formed to bear on the edge of a can-head flange therein, a spring-projected plunger in said holder having a rod 0, a pivoted yoke or frame supporting said holder, jaws, and rod, a slide w, to which said frame is pivotally connected, means for reciprocating said slide with the holder and rod'thereon, a lever 12, pivoted to a support on said slide and arranged to be moved by contact with a fixed stop during the backward movement of the holder, and thereby retract the rod 7 and its plunger, a rotating cam 7, and name to this specification, in the presence of a connecting-rod 6, engaged at one end with two subscribing witnesses, this 31st day of said cam and at the other end with a sliding January, A. D. 1889.

collar on the rod 4", whereby said rod is alter- EDWIN E. AN GELL. nately raised and depressed, substantially as 'Witnesses: and for the purpose specified. O. F. BROWN,

In testimony whereof I have signed my A. D. HARRISON.

Images