US1617148A - Can opener - Google Patents

Description

R. T. CHASE CAN OPENER Feb. 8 1927.

Fil d ay 4, 1925 2 Sheets-Sheet].

Feb. 8 27- RQT. CHASE can OPENER 2 Sheets-Sheet 2 Filed May 4, 1925 Y Patented Feb. 8, 1927.

UNITED STATES REYBURN 'r. cnasn; or SALT LAKE cITY, UTAH, assronon or one-HALF 'ro'mumx n. soon, or SALT LAKE CITY, Una.

CAN OPENER.

Application filed may 4, 1825. Serial No. 27,951.

can, and which will quickly and effectively shear the end of a can close to the edge so that, when the cut portion is removed, the

inner surface of the can, at the edge, is smooth and 1s free of ragged pr0 ect1ons, obvlating the danger of the user being cut in handling the can, or in removing the contents thereof.

A further object of the invention is to rovide a can opener with ablunt shearing lade, which does not require sharpening, and which can be drawn into the portion of the can to be cut by the forward movement of the frame, as the traction wheel is rotated.

A still further object of the invention is to design the can opener so that thetraction wheel is held in gripping contact with the outer bead of the rim of the can during the cutting operation.

In the accompanying drawings; Fig. 1 is a front elevation of my improved can opener, the blade being turned to allow the opener to be applied to a can;

Fig. 2 is an end view;

Fig. 3 is a plan view;

Fig. 4 is a sectional view of a can showing the opener in the act of cutting the end of a can;

Fig. 5 is a sectional view on the line 5 -5, Fig. 4, showing the blade in the cutting position;

Fig. 6 is a diagrammatic plan view, show-' ing the blade in section on the line 66, Fig. 4, makin a cut in a can;

Fig. 7 is a diagrammatic sectional elevation on the line 77, Fig. 4, showing the front edge of the blade entering the metal of the end of a can; and

Fig. 8 is a diagrammatic sectional elevation on the line 8 8, Fig. 4, showing the rear end of the blade rubbing and pressin down the cut edge of that portion of the en remaining on the body of a can.

The frame 1 is made a shown in the drawings, and has an upper guide 2, which extends over the edge of a can, and a guide 3 that rests against the side of'a can so that the frame assumes the proper angle when mounted on 'a can, as shown in Fig. 5. The toothed traction wheel 4 is located between the two guides 2 and 3 and in a position to enga e the rim 6 of a can a. The traction whee 4 is mounted on a shaft 5, which has its bearing in the frame and is provided,

at its outer end, with a handle 6 by which it is turned.

A guide 7 is preferably provided at the forward end of the frame. This guide holds the frame in proper relation to a can so that the traction wheel is not drawn into the body of a can. a

Pivotally mounted at 8 on an upwardly extending portion of the frame is ,a movable blade 9. This blade has a blunt cutting edge 10. A oint 11 is formed by beveling one corner of the blade, as shown in Figs. 1 and 2. The guide 2 acts as a stop for the blade 9, when it is moved into the cutting position, as in Fig. 4.

The prefera 1y back of a vertical line taken through the center of the cutter.

()n referring to Fig. -2 of the drawings. it will be noticed that the blade is arranged at an angle in respect to the traction wheel so that, when the device is mounted on the at an angle in respect to the can and the ivot 8 for the blade 9 is located,

blade 9 is at the inner edge of the rim of the can and slightly inclined towards the body of the can. This insures a clean cut at a point directly back of the rim, and, as the cut is made, the back of the blade presses the cut edge against the body of the can, producing a smooth surface.

The blade 9 is preferably arranged at a slight angle in respect to the face of the traction wheel 4, as illustrated in Fig. 3. This arrangement holds the traction wheel against the can and prevents it running off of the flange of the rim.

Ill)

The can opener is applied to the can, as

shown. The blade 9 is raised, as in Fig. 1, and the frame is mounted on the rim b of the can a. the guide 2 resting on the upper edge of the rim, and the guide 3 resting against the side of the can, as in Fig. 1. The blade 9 is then turned down so that the point 11 is in engagement with the top or end a of the can. This movement forces the traction wheel in contact withthe underside of the bead of the rim so that, on turningthe wheel in the direction of its'arrow, Fig. 5, the frame is moved forward, while the point of the blade is forced into the top a of the can, and, as the movement continues, the desired shear cut is made, as shown in the blade is limited by its engagement with the guide 2. As the cut is made, the rear inner portion of the blade presses against the cut edge and forces it against the body a of the can, as shown in Figs. 6 and 8, inaking a smooth finish. The opening in the can, after the cut top is removed, is substantially the full diameter of the can. After the complete out is made, the frame can be readily detached from the can on raising the blade.

I claim:

1. In a can opener, the combination of a frame: a traction wheel on the frame arranged to engage the underside of the rim of the can; a shear blade pivotally mounted on the frame and arranged to be moved into contact with the metal of the can so that on the firstmovement of the traction Wheel the blade will be forced through the metal of the can; and a stop to limit the movement of the blade so that as the movement of the wheel continues a shear cut is made.

2. In a can opener, the coi-ubination of a frame having a top guide and a side guide; a traction wheel arranged to engage the underside of the rim of the can; and a blade pivotally mounted on the frame and so arranged that when the blade is in contact with the metal of the can. the first forward movement of the traction wheel will cause the blade to puncture the can, and as the movement continues the blade will shear the metal of the can. i

3. In a can opener, the combination of a frame having a top guide and a side guide; a traction Wheel mounted on the frame be tween the two guides and arranged to en-- gage the underside of the rim of the can; and a cutting blade pivotally mounted on the frame and having a penetrating portion and a diagonal cutting edge, so that when the traction wheel is turned, the penetrating portion of the blade will first puncture the can and the cutting edge will shear it.

4. In a can opener, the combination of a frame; means for moving the frame in respect to the can to which it is applied; and a shear blade pivotally mounted on the Y can and then cut the frame, said bladebeing arranged so as to make a shear cut close to the beveled edge of the can, the rear of the blade being so positioned as to press the cut portion against the body of the can.

5. In a can opener. the combination of a frame having a top guide and a side guide; a traction wheel arranged to engage the low er edge of the bead of a can; means for rotating the wheel; a forward guide on the frame arranged to rest against the bead of a can, and a blade pivotally mounted on the frame and having a beveled corner, said blade being arranged to first puncture the metal of the can as the wheel is turned.

6. In a can opener, the combination of a frame having a top guide and a side ide;

a traction wheel mounted on the rame; means for turning the traction wheel; and a blade pivotally mounted on the frame, said blade having a beveled portionto puncture the can upon thefirst movement of the traction wheel, and as the movement of the traction wheel is continued, the blade will cut the can, said blade being arranged at an angle'in respect to the face of the traction wheel.

7. In a can opener, the combination of a frame; guides thereon; a traction wheel arranged to engage the can; and a cutting member pivotally mounted on the frame, said member having a point at one corner for the initial pierclng of the metal of the can, and having an oblique shearing edge for cutting the can after it has been pierced.

8. In a can opener, the combination of a frame arranged to be applied to the edge of the can to be opened; a blade pivotally mounted on the frame, said blade having a point and a cutting portion; a stop on the frame to limit the movement of the blade when said blade has been turned after puncturing the can, so that the cutting portion of the blade will be at an angle to the surface ofthe can so that the blade Will make a shear cut as the movement of the traction wheel is continued.

BEYBURN T. CHASE.

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