US1012787A - Can-opener. - Google Patents

Description

W. A. ZIETZKE. G AN OPENER. AYPLIGATIOQI NLRB 00124, 1911.

1,012,78?, Patented Dea 26. 1911.

mmm/hoz UNITED STATES PATENT orrron.

WILHELM A. ZIETZKE, or Bozeman, MONTANA.

CAN-OPENER.

i Specmcatoli of Letters Patent.

j i.. j.

Application filed October 4, 1911. Serial No. 652,759.

- To all'wto'm tt may concern:

Be it known that I; VILHELM A. Zrn'rznn,

'la citizen of the United States, residing at,l Bozeman, in the county of Gallatin and State of Montana, have invented a new and 'j useful Can-Opener, of which the following is a'specitcation.

The present invention relates to improvements in can openers, and the rimary object of the present invention is t v1e provision of a shank provided with 'a can piercing end or terminal and a projection adapted to co- :act with the said lterminal when the same is in cutting osition to prevent the too far .insertion of the cutting terminal, in combination with an adjustable yoke or trame disopener, having disposed for longitudinal movement thereupon a frame' carrying a stationary cutter and anti-frictional tapered roller, the said cutter being adapted to cut the metal at the top of the 'can while the roller is disposed upon and against the outer wall thereof, thus providing anti-frictional means lduring the rotation ofthe shank by a handle, the terminal of the shank being provided with a top engaging portion adapted to be held at the proper centered or relative position.

With the foregoing and other objects in view which. will appear as the description proceeds, the invention resides in the combination and arrangement\ of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be within the scope of what is claimed'without departing from the spirit of the invention.

In the drawings-Figure 1 is a side elevation of the complete device a portion of the can being shown in sections to den `onstrate the operation of the device. Fig. 2 is a portion of the shank with the adjustable frame carrying the cutter and anti-frictional roller disposed in section thereon. Fig. 3 is a section taken on line 3-3 of Fig. 2. F ig. 4 is a bottom plan view of the cutting l'end ofthe opener. larged sc'al'e demonstrating the rrim 'curling operation of the cutting blade andtapere'd Referring to the drawings,thenumeralil Patented lice'.

Fig. 5 is a side elevationonani, enL

designates. the shank which is preferably *i rectangular or square in cross section landis provided at one end with agripping handle 2 and at the other endwiththe can piercing hook orprong 4, which as shown provides a throat 5 upon the outer portion of the curved end 3 of the shank terminating in the top engaging lug or projection 6, Whereby the top cutting terminal 4 is adapted .to

be forced into the cover andthe shalnk turned at the will restupon'the top of the can thereby limiting the projection or intrusion of. the prong or cutting point4 through the top of the can, the throat portion 5 accommodating proper angle so that the lug 6 the metal of the top and withf'the bodyof the shank forming a pivot forthe openers? Mounted for adjustable and sliding move#- a rectangular open `frame 7, provided with an adjusting screw 8 9, whereby the said frame may be adjusted upon thel shank and held there at any desired adjustment. of the frame 7 to t-he screw 8, is provided a cutter 10, which is provided with 'the vinward curved face 11 and .the outer convexedv face 12, the said cutter being'so positioned as to cut the] top of the can as illustrated in Fig. 1, the 'same being adjustable by means of the frame, so that the various diametered cans may have their tops removed therefrom.

Then in use the cutting prong 4 is adapted to enter the top of the can centrally.

thereof and be limit-ed in its .downward movement by means of the lug 6 which acts as a fulcrurn to bring the shank 1 down with the frame 7 so that the cutter- 10 is forced through the top of the can adjacent the outer wall as clearly illustrated, so that t-he anti-frictional roller 14which is carried by the spindle or screw 13 will span the lsaid wall,the space 15 between the cutter and the Upon t-he opposite side 1 mentl upon the square shank of the opener, is

provided .with a wing Y anti-frictional roller 14 litting upon the rei maining portion of the top of the can and the upper portion of the wall as clearly illustrated, thereby providing an anti-friotional bearing exteriorly of the top of the can and at the same time acting as a meansl to assist in the cutting of the top tlerefrom.

the operator du, "ng the rotation oit the shank l through the handlel 2, slightly beare ing down, so that the roller lll Which is spaced from its lower ends to its top, Will produce a clamping action upon the top `edge of the wall of the can and thereby assist the cutter to cut the top from the can and properly grip the upper edge ofthe can during the cutting motion. At the same time by producing the antifricti`onal roller there is not the great amount of friction against the outer face of the can as would be the case during rotation, if the same Were a stationary, immovable or fixed surface. Further as shown in Fig. 5 the can C will have its short rim c curled or turned downwardly to present a hood around the rim of the can when t-he top c is entirely removed.

From the foregoing description taken in connection With the drawings, it is apparent that by producing a can opener with a shank l made inv rectangular or square in cross section, as indicated, that the frame 7 will be permitted to slide thereupon but will have no rotative movement with regard to the same, and therefore the cutting blade l0 and the roller 14 Will be upon the proper side of the same so that when the device is in the position as shown on Fig. l, the cut* ting blade 10 will enter the top and the vanti'rictional roller will engage the outer amara? top edge of the Wall of the can vand thereby y assist in the cutting operation. Further by making. the said frame 7 adjustable at will,

upon the shank l it is evident that any diframe surrounding the shank, means to lock i the frame to the shank, a cutter carried by the frame, and a truncated conical roller carried by the frame in coperable relation to the cutter, whereby the cutter and roller when forced downwardly and rotated by the shank will engage t-he rim interiorly and eXteriorly at opposite points to Wedge and turn-in the portion of the can remaining l attached to the interior of the rim of the can.

Intestimon as my own, .have hereto aflixed my signature in the presence of two Witnesses.

VILHELM A. ZIETZKE.

' lfitnesses:

G. Y. MONTGOMERY, EMIL AUG. ZIETZKE.

that I claim the foregoing-

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