US1372961A - Method of forming and applying ring-liners to can ends - Google Patents

Method of forming and applying ring-liners to can ends Download PDF

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Publication number
US1372961A
US1372961A US252391A US25239118A US1372961A US 1372961 A US1372961 A US 1372961A US 252391 A US252391 A US 252391A US 25239118 A US25239118 A US 25239118A US 1372961 A US1372961 A US 1372961A
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edge
forming
liner
ring
metal
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US252391A
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Kronquest Alfred Lee
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Continental Can Co Inc
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Continental Can Co Inc
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B21D51/46—Placing sealings or sealing material

Definitions

  • the invention relates to new and useful improvements in the method of forming and applying ring liners to metal can ends, and more particularly a paper ring liner to a can end having the peripheral edge thereof formed with a curl to facilitatethe stacking of the can ends and the forming of the flange of the can end and the can body into a double seam.
  • An obj ect'of the invention is to provide a end is used as a cooperating element in the forming of thering liner.
  • a further object of the invention is to provide a method of forming and applying ring liners to can ends having the peripheral edge thereof curled, wherein the edge of the metal of the can end is used asa coeperating element in the final cutting of the ring liner, so that the ring liner conforms in outline to the shape of the can end to which it is applied, and so that the ring liner may be applied to the can end simultaneously with the cutting thereof.
  • a further object of the invention is to provide a method of forming and applying ring liners to can ends, wherein the edge of the can end subsequently rolled into a double seam is utilized in the final cutting of'the ring liner, so that a failure to out the material forming the ring liner at any point indicatesthat the curled flange is imperfect
  • a still further object of the invention is to provide a method of forming and applying ring liners to can ends, wherein an ad hesive material may be first applied to the groove in'the can end which receives the ring liner and in which the edge of the metal forming the curl 'on the can end is utilized in the final cutting of the ring liner,
  • Flgure 1 is a view showin more orless diagrammatically and in vertical section, an'
  • Fig. 1 s a view partly in section andpartly n slde elevation centrally throu h the cutting station and at right angles to t e View shown in Fig. 1;
  • Flg. 4 1s a view in perspective showing the final cutting of the paper strip and the seatlng of the finished rlng liner in the groove in the can end;
  • Fig. 5 1s a transverse sectional view showngthe positlon of the parts just as the liner is first severed from the paper strip;
  • F1g. 6 1s a view showing the liner seated in the groove in the can end.
  • the ring liners are preferably made of 'paper, although any other suitable subbe accomplished by pressing the paper against the raw edge of the metal formlng the curled edge of the can end.
  • said metal edge serves as a cutting means operating to perform the final severing of the ring liner from the paper'strip.
  • ThlS pressure is preferably applied at one or more points and progressively from these points in a circumferential direction along the ed e of the metal and may be ap lied by rolling balls along the surface of t e paper, which balls are caused to press the paper against the edge of the metal, thus causing the cutting of the paper strip to form the ring liner.
  • the cutting means not only severs the paper to finish the ring liner, but forces the cut ring liner into the groove in the can end.
  • the groove referred to is formed by an inner shoulder impressed in the metal forming the can end and the curled edge of the can end and is of the usual construction.
  • the inner diameter of the ring liner may be of such dimensions that the liner will frictionally engage the inner shoulder of the groove and hold the liner in place or the curled edge of the can end may operate to hold the ring liner in place, but I prefer to use other means to insure the ring liner being held firmly against the bottom of the groove in the can end and insure the liner remaining attached to the cover even though it be roughly handled, as, for example, the dropping of the same on the floor of the packing house.
  • My preferred means consists in applying an adhesive material either to the metal at the bottom of the groove on the can end or to the ring liner, so that the ring liner when placed in the groove will be held therein by the adhesive material.
  • the can ends are indicated at E in the drawings. These can ends are placed in a stack 1, carried by suitable frame-work and are adapted to be fed one at a time from the stack holder by means of ,a sliding bar 2, whichmay be operated by a suitable lever 3 connected to the operating mechanism of the machine. The can ends are taken one at a time from the stack and by the first forward movement of the bar 2 will place the can end at a station where adhesive material may be applied to the bottom of the groove in the can end at one or more points.
  • the can end E is indicated as at the station for applying the adhesive material. This may be accomplished by suitable brushes ie-4 carried by a cross -head 5, and these brushes are fed with a suitable liquid adhesive material by nozzles 6-6. The can ends receive a drop of liquidadhesive at each point directly beneath the brushes.
  • a yielding dog 7 which engages the can end at the stack and carries it tothe position underneath the brushes.
  • the table or support along which the can ends move 15 provided with detaining clips 8-8, which hold the can ends in proper position beneath the brushes and prevent the return of the can end with the bar when it moves back to engage and bring forward another can end.
  • a second yielding dog 9 engages the can end indicated at E in Fig. 3, and moves the same forward to the position indicated at E which is directly over a vertically reciprocating supportlng plunger 10.
  • This plunger 18 carried by a stem 11, which slides in the frame and said supporting plunger may be moved up and down by a lever 12, operated by a cam 13 on the shaft 14.
  • the strip of material from which the ring liners are made is indicated at P in the drawings.
  • Said strip of material is fed intermittently by feed rolls 14'. which are operated in any suitable way.
  • the stri of material first passes beneath a die WllCll cuts a disk from the paper forming the inner edge of-the ring liner.
  • This die is indicated in Fig. l. at 15.
  • Said die is carried by a suitable reciprocating plunger 16, operated by a lever l7. and a spring 18.
  • Cooperating with the. die 15 is a second sleeve die 19.
  • the disks as they are cut from the strip of paper pass down through the sleeve die 19 and will be stacked one upon the other and this greatly facilitates the handlin of the paper disks.
  • the paper strip P is then fed forward by the feedin rolls 14 over the plunger support 10 and the can end E thereon and the center of the opening formed in the paper strip is brought into exact re istration with the center of the can end. lhe can end is held in a predetermined position on this plunger support by spring retaining fingers 20, see Fig. 2.
  • a rotating head 21 Directly above the lunger support 10 is a rotating head 21. W ich is provided with a series of balls 22. These balls are supported on the head so that they may rotate freely. As shown in Fig. 2 of the drawings, I prefer to use four balls.
  • the position of the ball and the diameter of the same is such as not only to cause a cutting of the paper strip to form the ring liner, but the ball places the cut ring liner in the groove in the can end.
  • This groove in the can end is formed by the shoulder e which is impressed in the cover and the outer curled edge.
  • the groove is of the usual construction.
  • the edge is curled in the usual manner to facilitate the stacking of the can ends and to facilitate the rolling of the can end and flange on the can body into a double seam.
  • the ring liner as it is seated inthe groove comes into contact with the adhesive material and will be firmly held in the groove, so that the ring liner will not be dislodged therefrom even by the rough handling of the cover-as the dropping of the same upon the floor of the packing house.
  • plunger support then drops and the paper strip is again fed forward another step. If the edge of the metal-is cut out or depressed or is in any other way defective,
  • the paper strip would not be cut at the point where the defect occurs and the ring liner clinging to the paper strip enables the operator to readily detect the imperfect can end, so that it may be rejected.
  • the ring liner is indicated at P in the drawings.
  • the method of forming and applying paper liners to a metal can end having a laterally projecting flange which consists in placing the strip of paper against the edge 'of the can end,'and pressing the strip against the edge of the metal forming the flange at one or more points, and progressively shifting the pressure from said point or points along the edge of the metal for severing the paper from the strip.
  • the method of forming and applying ring liners to metal can ends which consists in cutting a paper strip to form the inner edge of the ring liner, placing the strip with the center of the opening thus formed in register with the center of a can end having its edge curled, and pressing the paper strip against the edge of the metal forming the curl to sever the same, thus forming the outer edge of said liner.
  • the method of forming and applying ring liners to metal can ends which consists in cutting a paper strip to form the inner edge of the ring liner, placing the strip with the center of the opening thus formed in register with the center of a can end having its edge curled, pressing the paper strip against the edge of the metal forming the curl to sever the same, thus forming the outer edge of said liner, and utilizing the pressing means for seating the finished liner on the can end.
  • the method of forming and applying ring liners to metal can ends which consists in placing a paper strip over the inner face of a can end having its edge curled, pressing the paper strip against the edge of the metal forming the curl at one or more points and progressively shifting the pressure from said point or points along the edge of the metal for severing the paper from the paper strip to form the ring liner.

Description

A. L. KRONQUEST.
METHOD OF FORMING AND APPLYING RING LINERS T0 CAN ENDS. APPLICATION FILED SEPT. 3. 1918.
1,372,961. Patented Mar.29,1921.
3 SHEEIS-SHEEI l.
Chimney;
A. L. KRONQUEST. METHOD OF FORMING AND APPLYING RING LINERS T0 CAN ENDS.
' APPLICATION FILED SEPT. 3, I918. 1,372,961 Patented Mar. 29,1921.
3 SHEETS-SHED 2.
C1 Roz": L, s
A. L. KRONQUEST. METHOD OF FORMING AND APPLYING RiNG LINERS T0 CAN ENDS.
- APPLICATlON FILED SEPT-3,1918. 1,372,961. Patented Mar. 29, 1921.
SSHEElS-SHEE] 3.
Zlvwemtoz W-Lbmcm I /%d and the can end may be rejected.
' UNITED, STATES PATENT OFFICE...
ALFRED LEE KRONQUEST, or CHICAGO, rumors,- AssIeNoR r0 coN'rINENrAL cAN coNrANY, me, or sYRAcUsR, NEW YORK, A oonroRA-rroN on NEW YORK,
Specification of Letters Batent.
Patented Mar. 29, 1921.
Application filed September 3, 1918. Serial No. 252.391. 7
To all whom it may concern:
Be it known that I, ALFRED LEE I{RON-' QUEST, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Methods of Forming and Applying Ring-Liners to Can Ends, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.
The invention relates to new and useful improvements in the method of forming and applying ring liners to metal can ends, and more particularly a paper ring liner to a can end having the peripheral edge thereof formed with a curl to facilitatethe stacking of the can ends and the forming of the flange of the can end and the can body into a double seam.
An obj ect'of the invention is to provide a end is used as a cooperating element in the forming of thering liner.
A further object of the invention is to provide a method of forming and applying ring liners to can ends having the peripheral edge thereof curled, wherein the edge of the metal of the can end is used asa coeperating element in the final cutting of the ring liner, so that the ring liner conforms in outline to the shape of the can end to which it is applied, and so that the ring liner may be applied to the can end simultaneously with the cutting thereof.
A further object of the invention is to provide a method of forming and applying ring liners to can ends, wherein the edge of the can end subsequently rolled into a double seam is utilized in the final cutting of'the ring liner, so that a failure to out the material forming the ring liner at any point indicatesthat the curled flange is imperfect A still further object of the invention is to provide a method of forming and applying ring liners to can ends, wherein an ad hesive material may be first applied to the groove in'the can end which receives the ring liner and in which the edge of the metal forming the curl 'on the can end is utilized in the final cutting of the ring liner,
so that the cooperating means may seat the against the adhesive material.
liner in the groove in the can end and In the drawings Flgure 1 is a view showin more orless diagrammatically and in vertical section, an'
apparatus for carrying out my method; 1* 1g. 2 1s a-vlew partly in plan and partly 1n sect1on of the same;
Fig. 1s a view partly in section andpartly n slde elevation centrally throu h the cutting station and at right angles to t e View shown in Fig. 1;
Flg. 4 1s a view in perspective showing the final cutting of the paper strip and the seatlng of the finished rlng liner in the groove in the can end;
Fig. 5 1s a transverse sectional view showngthe positlon of the parts just as the liner is first severed from the paper strip; and
F1g. 6 1s .a view showing the liner seated in the groove in the can end.
rolling of the edge of the can end and the V flange on the can body into a double seam.
The ring liners are preferably made of 'paper, although any other suitable subbe accomplished by pressing the paper against the raw edge of the metal formlng the curled edge of the can end. By pressing the paper against the edge of the metal, said metal edge serves as a cutting means operating to perform the final severing of the ring liner from the paper'strip. ThlS pressure is preferably applied at one or more points and progressively from these points in a circumferential direction along the ed e of the metal and may be ap lied by rolling balls along the surface of t e paper, which balls are caused to press the paper against the edge of the metal, thus causing the cutting of the paper strip to form the ring liner. The cutting means not only severs the paper to finish the ring liner, but forces the cut ring liner into the groove in the can end. The groove referred to is formed by an inner shoulder impressed in the metal forming the can end and the curled edge of the can end and is of the usual construction.
The inner diameter of the ring liner may be of such dimensions that the liner will frictionally engage the inner shoulder of the groove and hold the liner in place or the curled edge of the can end may operate to hold the ring liner in place, but I prefer to use other means to insure the ring liner being held firmly against the bottom of the groove in the can end and insure the liner remaining attached to the cover even though it be roughly handled, as, for example, the dropping of the same on the floor of the packing house. My preferred means consists in applying an adhesive material either to the metal at the bottom of the groove on the can end or to the ring liner, so that the ring liner when placed in the groove will be held therein by the adhesive material.
By my improved method of forming and applying ring liners to can ends, it will be obvious that, if the edge of the metal forming the can end, has a cut out section or depression or is defective in any other manner, so that the can end when secured to the can body is liable to produce a leak, this defect in the edge of the metal will prevent the complete severing of the material forming the ring liner, so that the defect is readily detected and the can end may be rejected.
The invention will perhaps be made more clea by reference to 'the accompanying drawings, which show more or less diagrammatically, an apparatus which may be utilized for carrying out my improved method.
The can ends are indicated at E in the drawings. These can ends are placed in a stack 1, carried by suitable frame-work and are adapted to be fed one at a time from the stack holder by means of ,a sliding bar 2, whichmay be operated by a suitable lever 3 connected to the operating mechanism of the machine. The can ends are taken one at a time from the stack and by the first forward movement of the bar 2 will place the can end at a station where adhesive material may be applied to the bottom of the groove in the can end at one or more points. The can end E is indicated as at the station for applying the adhesive material. This may be accomplished by suitable brushes ie-4 carried by a cross -head 5, and these brushes are fed with a suitable liquid adhesive material by nozzles 6-6. The can ends receive a drop of liquidadhesive at each point directly beneath the brushes. The reciprocating bar,2
is formed with a yielding dog 7, which engages the can end at the stack and carries it tothe position underneath the brushes. The table or support along which the can ends move 15 provided with detaining clips 8-8, which hold the can ends in proper position beneath the brushes and prevent the return of the can end with the bar when it moves back to engage and bring forward another can end. On this backward movement of the bar a second yielding dog 9 engages the can end indicated at E in Fig. 3, and moves the same forward to the position indicated at E which is directly over a vertically reciprocating supportlng plunger 10. This plunger 18 carried by a stem 11, which slides in the frame and said supporting plunger may be moved up and down by a lever 12, operated by a cam 13 on the shaft 14.
The strip of material from which the ring liners are made is indicated at P in the drawings. Said strip of material is fed intermittently by feed rolls 14'. which are operated in any suitable way. The stri of material first passes beneath a die WllCll cuts a disk from the paper forming the inner edge of-the ring liner. This die is indicated in Fig. l. at 15. Said die is carried by a suitable reciprocating plunger 16, operated by a lever l7. and a spring 18. Cooperating with the. die 15 is a second sleeve die 19. The disks as they are cut from the strip of paper pass down through the sleeve die 19 and will be stacked one upon the other and this greatly facilitates the handlin of the paper disks. The paper strip P is then fed forward by the feedin rolls 14 over the plunger support 10 and the can end E thereon and the center of the opening formed in the paper strip is brought into exact re istration with the center of the can end. lhe can end is held in a predetermined position on this plunger support by spring retaining fingers 20, see Fig. 2. Directly above the lunger support 10 is a rotating head 21. W ich is provided with a series of balls 22. These balls are supported on the head so that they may rotate freely. As shown in Fig. 2 of the drawings, I prefer to use four balls. After the paper strip is brought into register with the can end the plunger support 10 is raised, so that the paper strip is brought against the sharp metal edge formed by the curl e in the can end E. As the head rotates the balls are pressed against the paper strip and the pressure of the ball forces the strip against the sharp metal edge of the can end and this pressure shifts with the movement of the ball along the peripheral edge of the can end. The pressure of the ball against the paper strip and the paper strip against the edge of the metal causes the metal edge to sever the paper and thus forms the outer edge or the ring liner. which, of course,
finishes the ring liner. The position of the ball and the diameter of the same is such as not only to cause a cutting of the paper strip to form the ring liner, but the ball places the cut ring liner in the groove in the can end. This groove in the can end is formed by the shoulder e which is impressed in the cover and the outer curled edge. The groove is of the usual construction. The edge is curled in the usual manner to facilitate the stacking of the can ends and to facilitate the rolling of the can end and flange on the can body into a double seam. The ring liner as it is seated inthe groove comes into contact with the adhesive material and will be firmly held in the groove, so that the ring liner will not be dislodged therefrom even by the rough handling of the cover-as the dropping of the same upon the floor of the packing house.
After the liner has been formed and placed in the groove in the can end, the
plunger support then drops and the paper strip is again fed forward another step. If the edge of the metal-is cut out or depressed or is in any other way defective,
' then the paper strip would not be cut at the point where the defect occurs and the ring liner clinging to the paper strip enables the operator to readily detect the imperfect can end, so that it may be rejected. The ring liner is indicated at P in the drawings.
It will be understood that the apparatus described above may be changed in many respects, and at the most is only one way of carrying out my improved method, which consists broadly in utilizing the metal of the can end as a cooperating element in the final cutting of the ring liner and the applying of the ring liner to a can end at the station and at the time when said ring liner is cut.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is: a
1. The method of forming and applying paper liners to a metal can end having a laterally projecting flange which consists in placing the strip of paper against the edge 'of the can end,'and pressing the strip against the edge of the metal forming the flange at one or more points, and progressively shifting the pressure from said point or points along the edge of the metal for severing the paper from the strip.
2. The method of forming and applying ring liners to metal can ends, which consists in cutting a paper strip to form the inner edge of the ring liner, placing the strip with the center of the opening thus formed in register with the center of a can end having its edge curled, and pressing the paper strip against the edge of the metal forming the curl to sever the same, thus forming the outer edge of said liner.
3. The method of forming and applying ring liners to metal can ends, which consists in cutting a paper strip to form the inner edge of the ring liner, placing the strip with the center of the opening thus formed in register with the center of a can end having its edge curled, pressing the paper strip against the edge of the metal forming the curl to sever the same, thus forming the outer edge of said liner, and utilizing the pressing means for seating the finished liner on the can end. 7
4. The method of forming and applying ring liners to metal can ends, which consists in placing a paper strip over the inner face of a can end having its edge curled, pressing the paper strip against the edge of the metal forming the curl at one or more points and progressively shifting the pressure from said point or points along the edge of the metal for severing the paper from the paper strip to form the ring liner.
- In testimony whereof, I aflix my signature in the presence of two witnesses.
ALFRED LEE KRONQUEST.
Witnesses:
W. M. NoRroN, EARL F. PHILLIPS.
US252391A 1918-09-03 1918-09-03 Method of forming and applying ring-liners to can ends Expired - Lifetime US1372961A (en)

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