Патент USA US2132041код для вставки
Oct. 4, 1938. cv NELSON 2,132,041 CAN SEALER Filed July 8, 1955 2 Sheets-Sheet l 52. INVENTOH' CARL. NELS N 5Y6kMl M M ATTO NEY5 Oct.v 4, 1938. c. NELSON 2,132,041 CAN SEALER Filed July 8, 1935 '2 Sheets-Sheet 2 24 INVENTOR CAR L N E LSON BY WKIRM "ll-'4 ATTORNEYé Patented Oct. 4, 1938 2,132,041 UNITED STATES PATENT OFFICE 2,132,041 CAN SEALER. Carl Nelson, Eau Claire, Wia, asslgnor to Na tional Pressure Cooker Company, Eau Claire, Wia, a corporation of Wisconsin Application July 8, 1935, Serial No. 30,345 3 Claim. (Cl. 113-423) This invention relates to new and useful im for relatively adjustinglthe seaming rollers with provements in can sealers of the portable type 5 - Figure 4 is a view showing a modi?ed construc tively adjusting the seaming rollers with respect tion wherein the eccentrics are made indepen dently of the posts and are adjustably supported to the can. ‘ - _ I, An object of the present invention is to pro vide a can sealer comprising a plurality of seam mg rollers supported upon pivoted arms having means for actuating them whereby the seaming 10 rollers are alternately moved into and out of seaming engagement with the can closure, and eccentric means being provided in connection with said arms whereby they may be relatively adjusted with respect to the-can to accurately 15 position them with respect thereto. ' Other objects of the invention reside in the novel construction or the frame of the can sealer, whereby suitable eccentrics are provided in the upper portion thereof for relatively adjusting 20 the seaming rollers with respect to the can; in the construction of the machine frame which comprises a base having upright posts secured thereto and to the upper ends ofgwhich is secured a cross head in which the driving mechanism of 25 the can sealer is supported, and the upper por tions of said posts being provided with eccentrics, whereby the arms which support the usual seam ing rollers, may be relatively adjusted to accu rately position the seaming rollers with respect to 30 the can closure; and in the provision of a can ‘thereon. _ In the selected embodiment of the invention here shown, there is illustrated in Figure l, a can sealer, the general construction of which is similar to the one disclosed in my pending appli 10 cation, Serial Number 30,344, ?led July 8, 1935. The can sealer as here shown, comprises a base 2 provided with suitable clamping elements, ‘gen erally indicated by the numeral 3, whereby the sealer may be conveniently clamped to a suitable support such, for example, as a table top. A lower chuck plate d is rotatably mounted in the base and is adapted for vertical movement by a cam device 5 having an operating handle 6 which, when rotated in one direction, will cause the 20 chuck plate ii to be elevated. Upright posts 1 are shown provided with re duced end portions 8,1 received in apertures in the base 2 and secured therein by suitable nuts 9, as best illustrated in Figure 1. The upper ends of the posts 7 have reduced portions ii adapted to be received in suitable apertures provided in a cross head i2, and which is secured to the termi nals it by suitable nuts it. An upper chuck plate it, having a knurled sealer which is extremely simple and inexpensive in construction,‘ whereby it maybe manufac periphery 85 adapted for driving engagement tured at small cost.. bevel gear 85, which, in turn, is secured to a suit able shaft ll, rotatably mounted in bearings pro vided in the cross head i2. A bevel pinion i8 is rotatably mounted upon a” stud l9 and has an ‘ Other objects of the invention will appear 35 'from the following description and accompany ing drawings and will be pointed out in the an nexed claims. ' , In the accompanying drawings, there has been disclosed a structure designed to carry out ‘the 40 various objects of the invention, but it is to be understood that the invention is not confined to the exact features shown as various changes may be made within the scope of the claims which follow. In the drawings: Figure 1 is a rear view of a can sealer showing with a can closure, is detachably secured to a operating crank ‘it secured thereto, whereby it may be conveniently rotated thereby to drive the chuck plate it, it being understood that the pinion is constantly meshes with Qie bevel gear it. Each post ‘i is provided adjacent its upper end with a reduced portion 22, upon which are piv 'otally mounted suitable arms 23, each carrying a seaming roller 26. The reduced portions 22 of the upright posts '5 are eccentrically disposed the invention embodied in the construction with respect to the axes of the posts ‘I, as best thereof; shown in Figure 3, whereby they function as eccentrics to relatively adjust the arms with re spect to the can, and whereby the seaming roll ers may be accurately positioned with respect to ' Figure 2 is a sectional plan. view on the line 50 respect to the can; and and more particularly to a novel means for rela 2-2 of Figure '1,‘ showing the arrangement of the arms which support the seaming rollers and the driving means therefor; Figure 3 is a detail sectional view on the line the can closure. Each arm 23 has a iorked end portion 25 M of Figure 1, showing the eccentric means adapted to receive a connecting bar 26, which is 55 provided at the upper ends or the upright- posts coupled thereto by suitable coupling pins 21. 2 2, 189,041 A plurality of apertures 28, 29, and 3| are pro vided in the forked end portions 23 of the arms 23, adapted to be alined with suitable apertures provided in the connecting bar 26, and whereby the spacing between theseaming rollers 24 may be varied to adapt the sealer for di?erent sizes of cans. The apertures 28, 23, and 3|, in the forked end portions 25 of the arms provide means whereby the can sealer may be quickly ad 10 justed to di?erent sizes of cans, by simply with ~ drawing the coupling pins 21 and shifting them into other apertures corresponding to the size of can to be sealed. . provided with oppositely disposed ?at faces to provide means for rotating it, or the periphery of the ?ange 31 may be suitably knurled so that when the bushing is released by loosening the nut It, the bushing may be conveniently ro tated with the ?ngers thereby to accurately ad Si just the seaming roller with respect to the can. In the form shown in Figure 4, the upright posts ‘I are permanently secured to the base I. I claim as my invention: > 10 1. In a can sealer, a base having upright pos secured thereto, a cross head secured to the upper ends of the posts, chuck plates for sup Reciprocal movement is imparted to the con necting bar 26 by a cam 20 operatively con nected to the shaft l1, and adapted to engage a forked member 30 secured to the connecting bar, as illustrated in Figure 2. This mechanism is shown and described in detail in my copending porting the can, means for driving one of said chuck plates to rotate the can, a plurality of application, hereinbefore mentioned, and it is therefore thought unnecessary to herein describe ferent diameters, eccentrics at the upper ends of 20 said posts for supporting said arms, and means seaming rollers, arms for supporting said rollers, means operatively connecting together said arms‘ whereby the spacing between the seaming rollers may be varied in accordance with cans of dif seaming rollers must be accurately positioned whereby said posts may be relatively operated to rotate the eccentrics and thereby relatively adjust the arms and seaming rollers with respect withrespect to the marginal ?ange of the can to the can. closure, so that when the seaming rollers are swung inwardly the maximum of their move disposed apertures therein, a pair of upright the same in detail. In order to hermetically seal the can, the ment, they will press the rolled edge of the closure and the ?ange of the can into sealing 30 engagement with the can body to thereby her metically seal the can. The eccentrics 22 provided at the upper por tions of the posts ‘I provide means whereby the seaming rollers may be quickly and accurately 35 adjusted with respect to the can by simply loosening the nuts 9 and I3 of each rod and in serting a small pin or instrument into an aperture 32 provided in each post and relatively rotating said posts until the seaming rollers are accu 40 rately positioned with respect to the can. By the employment of the simple adjusting mechanism, herein disclosed, the can sealer is greatly simpli?ed, as will readily be noted by reference to the drawings, particularly Figure 2, 45 wherein the simplicity of the mechanism is clearly illustrated. 2. In a can sealer, a base having vertically posts fitting in said apertures, means for se curing the posts in said apertures, said posts having their upper ends formed with reduced extensions, 9. cross head having apertures for receiving said extensions, means for securing the cross head to the posts, an eccentric formed on each post below the cross head, an arm pivotally mounted on each eccentric and each carrying a seaming roller, chuck plates for supporting a can to be sealed, means for driving one of said chuck plates; thereby to rotate the can, means for actuating the arms to cause the seaming rollers to be alternately moved into and out of seaming engagement with the closure and can, and means whereby said posts may be relatively rotated, thereby to actuate the eccentrics to relatively adjust the arms with respect to the can. 3. In a can sealer, a base having upright posts In Figure 4, I have shown a construction in mounted thereon, eccentrics integrally formed which the upper end of each post ‘I is provided on said posts, a cross head secured to the upper with a reduced extension 33, upon which are mounted eccentric bushings 34, the lower ends of 50 which are seated against the shoulders 35 of the posts ‘I. The upper ends of the bushings are adapted to be engaged by the lower faces of the hubs 36 of the_cross head I2, and whereby 45 ends of the posts, chuck plates between which the can is supported, means for driving one of 50 said chuck plates'to rotate the can, a plurality of seaming rollers, an arm rotatabiy mounted on each eccentric and each carrying a seaming roller, a member adjustably connecting together the eccentric bushings may be secured in ad- I said arms whereby the spacing between the 55 justed position by manipulation of the nuts l3, seaming rollers may be varied in accordance 55 provided in the upper ends of the posts ‘I. In‘ 'with cans of different diameters, and means the 7. form shown in Figure 4, the hubs of the: whereby said posts may be relatively rotated in arms 23 are bored out to receive the bushing 34L said base, thereby to rotate the eccentrics to and are rotatable thereon in substantially the same manner shown in Figure 2. accurately position the seaming rollers with re spect to the edge of the can closure and top. Each bushing 34 is preferably ?anged at its lower end, as shown at 31, which ?ange may be CARL NELSON.