US1370040A - newman - Google Patents

Description

I. NEWMAN.

TOOL FOR CAPPING CANS.

APPLICATION FILED NOV. 1. 1919.

Patented Mar. 1, 1921.

flare/Z641. f/V'ewm an.

UNITED STATES orrice.

'JLOOL FOR GAIPING CANS.

Specification of Letters Patent.

Patented Mar. 1, 1921.

Application filed November 1, 1919. Serial No. 334,907.

To all whom it may concern:

Be it known that I, ISIDOR NEWMAN, a citizen of the United States, and resident of New York city, borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Tools for Capping Cans, of which the followingis a specification.

In Letters Patent granted to me on May 14, 1918, No. 1,266,519, I have disclosed a tool for capping. cans wherein rolls fitting within a cap are expanded outwardly to spin the cap within the neck of a can, and other rolls rotate on the transverse flange of. the cap to spin the latter. over the neck, and in my application for Letters Patent 7 filed Sept. 26, 1919 for tool for capping cans,

Serial No. 326,641, I have disclosed a tool having certain improvements upon the class of tools disclosed in my said Letters Patent wherein outer rollers arecaused to move inwardly during the spinning of the aforesaid flange while inner rolls move outwardly to spin the cap within the can neck.

My present invention relates to improve ments in the .class of tools above set forth, and is articularly adapted for spinning the outer ange portion of the caps upon the neck of cans without spinning the cap itself within the neck, my improved tool having a head to fit upon or within the cap to retain the latter in position on the can neck and one or more outer rollers operative upon the cap flange or margin to spin it against and under the head or rim on the can neck while the tool rotates. In the example illustrated in the accompanying drawings the aforesaid head remains in non-rotative contact with the can cap whilethe tool with its rollers rotate around said head and the rollers rotate on upwardly disposed axes carried by laterally movable arms operating to move the peripheries of said roller laterally against a flange of a cap.

- My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is had to the accompanying drawings forming part hereof wherein-- -Figure 1 is a side view of a tool for capping or seaming cans embodying my improvements;

Fig. 2 is a vertical section substantially on the line 22 in Fig. 1;

Fig. 3 is a section substantially on the l1ne 33 in Fig. 1;

F g. 41 is an enlarged detail section;

:Fig. 5 is a section on the line 5-5 in Fig. 4.

Similar numerals of reference indicate correspondlng parts in the several views.

body 1 is'provided with a bore 2 in whloh a plunger 3 is slidably fitted, and said plunger is shown guided in a threaded plug 4 screwed into a threaded bore in the under surface of body 1, which plug may be retamed in set position by a screw 5 (Fig. 1) bearlng against said plug. The plunger 3 has a stop or flange 3 at its upper end (Fig. 2). adapted to be pushed against the plug 4 by means of a spring 6. Said spring is shown located in a bore 7 in plunger 3 and bears at its upper end against spindle 8 adapted to be secured to any suitable machine, such as a drill press or to an electric motor for operation of my improved tool. The body 1 is shown provided with a reduced shank 9 having a transverse slot 10 receiving a pin 11 projecting from spindle 8, whereby said spindle may slide and pin 11 will rotate body 1 with the spindle. Plunger 3 is shown provided with 'a longitudinal groove or keyway 3 receiving a key 49, which maybe formed in the bore of plug 4, whereby plunger 3 will be rotated by said plug and with body 1. The plunger 3 at its lower or outer end is provided with a head 12, shown rotatively attached to said plunger by means of a screw 13 passing through the head and engaging an inner threaded bore in the end of the spindle. By preference a washer 14, which may be of fiber, is interposed between the head 12 and the end of the plunger 3 to bear against plug 4 to reduce friction and wear when the tool is in operation, (Fig. 2.)

When the tool is in use spring 6 will normally force plunger 3 with its head 12 outwardly in position to engage a cap 15 to be attached to neck 16' of a can or receptacle 16, and when the tool is pushed down to the work the plunger 3 will recede within body 1. In the example of the cap and can illustrated the neck 16 is provided with it rolled head or rim 16* at its mouth. and cap 15 is provided'with a recessed or curved flange 15 adapted to fit over the head 16" (Fig. 1), to be spun or seamed thereto (Fig. 4). The cap 15 is shown of the class recessed centrally at 15, by reason of recessed flange 15*, and the head 12 is shown annularly recessed at 12 along its lower edge to.

in osition to en a e flan 'e 15 of ca) 15 to spin or seam such flange upon the bead or rim of the neck of the can. The'rollers 20 are shown pivoted upon pins or pivots 21 extending longitudinally into holes in the ends of arms 17, the rollers 20 being shown journaled within recesses 17 at the lower ends of the arms 17. Screws 21 may retain the pins 21. The rollers 20 are preferably grooved peripherally at 20 in such a manner as to receive flange 15 of cap 15 and cause the ame to be spun or squeezed against and under bead 16 of neck 16*, the rollers 20 rotating for such purpose upon upwardly extending pivots. The lower ends of the arms carryingrollers 20' are normally pressed outwardly, which may be accomplished by means of springs 22 received in opposing recesses "23, 24L respectively in body land arm 17 (Fig. 2). Upon spindle 8 is a controlling member 25 for arms 17 which is located between said arms and is downwardly tapering or cone-like at 25? to engage corresponding "tapering edges 17 of said arms to tilt the latter to cause rollers 20 to approach the flange of the can cap during operation of the tool. The member 25 is preferably adjustably secured to spindle 8 by means of threads 8 on said spindle receiving a threaded bore 26 in member 25. The member 25 may be retained in set position on spindle 8 by means of a screw 27 threaded in said member which may impinge against threads 8 or against an-interposed plug 28. By regulating the position of member 25 on spindle 8 the extent of movement of arms 17 by said member maybe controlled to cause rollers 20 tomove toward a can cap to a desired extent according to the character of the cap and the bead of the can neck. The head 12 may engage therollers 20 to prevent undue inward pressure of said rollers against the cap in the event of irregularitiesin the gage of the metal of the cap or the size-of the bead 16 When the tool is suspended by spindle 8 for use the body 1' will hang from the spindle: with arms 17 and rollers 20-spread and with plunger 3 and head 12 projected downwardly, over cap 15 on the can neck below.

hen the tool is depressed head 12 will bear upon cap 15 and the plunger will recede un= til plug 4 encounters washer 1a which stops descent of body 1, and the downward pressure of the tool causes head 12 to retain the cap on the can neck. Continued downward movement of the spindle causes the controlling member 25 to operate and tilt arms 17 to force the rollers 20 against flange 15 of the cap during rotation of the tool, all parts of the tool rotating except head 12. The pressure 01 member 25 upon arms 17 causes rollers 20 to roll or spin flange 15 against the bead or rim 16 of the can neck to secure the cap thereto. \Vheu the tool is raised member 25 rises and releases arms 17 to spread the rollers away from the cap and the plunger is again projected outwardly with head 12 ready for a succeeding operation and so on. justment of the plug elwith respect to head 12 the relative positions of the recesses 20 of rollers 20 with respect to said head and the flange of the cap can be controlled since engagement of said plug with said head limits movement of the latter and the other parts relatively one to another.

It will be noted that head 12 is pivotally supported centrally in the axis of body 1 and spindle 8 so that rollers 20 rotate bodily and uniformly around said head. While I have shown three rollers 20 and arms 17 adapted to rotate around head 12 it will be understood that the tool may be provided with one or any desired number of such rollers and arms.

My improvements are simple in construction, rapid and efiicient in operation, since the tool may be kept in rotation, and it is merely necessary to place the capped cans beneath the tool and to cause the latter to descend and rise each time to complete operation of spinning or seaming of the caps upon the can necks.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A tool of the class described comprising a body, a central plunger having means to engage a can cap, a roller outside of the plunger to engage a flange of the cap, an arm carrying the roller and pivotally carried between its ends by said body. and a spindle axially movable in the body and connected with the body to rotate it, said spindle having a controlling member movable with the spindle toward the body to control the operation of said arm, said member being rotative on the spindle for adjustment relatively to the arm, and means to secure said member to the spindle in adjusted position.

2. A tool of the class described comprising a body having a centrally pivotally supported head to engage a can cap, an arm By adpivotally carried by the body and provided with a roller to engage the flange of said cap, a spindle slidably connected with the body and having means cooperating with the body for rotating the latter, and a controlling member adjustably carried by the spindle having a tapering surface to cooperate with said arm to cause the roller to operate upon said flange.

3. A tool of the class described comprising a body having a bore, a plunger slidable in the bore, means to rotate the plunger with the body, said plunger having a head to engage a can cap, a spring normally forcing the plunger and head outwardly, an arm pivotally carried by the body and provided with a roller outside of said head to operate upon the flange of a cap, a spindle slidably connected with the body, means to rotate the body with the spindle, and means upon the spindle to control the arm for moving the roller toward said flange.

4:. A tool of the class described comprising a body having a bore, a plunger slidable in the bore, means to rotate the plunger with the body, said plunger having a head to engage a can cap, a spring normally forcing the plunger and head outwardly, an arm pivotally carried by the body and provided with a roller outside of said head to operate upon the flange of a cap, a spindle slidably connected with the body, means to .rotate the body with the spindle, a controlling member adjustably connected with the spindle and having a tapering surface to cooperate with said arm to cause the latter to move the roller toward the cap flange.

5. A tool of the class described comprising a body having a plug provided with a bore, a plun er slidable in said bore, means between t e plug and plunger for rotating the latter by the former, a head pivotally connected with the plunger, an arm pivotally carried by the body and having a roller out side of said head to engage a flange of a cap, a spindle slidably connected with the body, means to rotate the body with the spindle, and means upon the spindle cooperative with said arm to cause the latter to move the roller toward said flange.

6. A tool of the class described comprising a body having a plug provided with a bore, a plunger slidable in said bore, means between the plug and plunger for rotating the latter by the former, a head pivotally connected with the plunger, an arm pivotally carried by the body and having a roller outside of said head to engage a flange of a cap, aspindle slidably connected with the body, means to rotate the body with the spindle, and a controlling member adjustably connected with the spindle and having a tapering surface to cooperate with said arms for moving the roller toward said flange.

7. A tool of: the class described comprising a body having an adjustable plug, a plunger slidable in the plug and having means to cooperate with a can cap, a roller outside of the plunger, means to support the roller to move toward said cap, and means to operate the roller.

Signed at New York in the county of New York and State of New York this 31st day of October, A. D. 1919.

ISIDOR NEWMAN.

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