US1813620A - Can opener - Google Patents

Description

. July 7, 1931. c, HENRY 1,813,620

CAN OPENER Filed Aug. 8, 1930 A ATTORNEY,

Patented July 7, 1931 CASHLY A. HENRY,

OF DAYTON, OHIO CAN OPENER Application filed August 8,

This invention relates to new and useful improvements in can openers.

It is the principal object of my invention to provide an eflicient, durable and easily op erated can opener for accommodating cans of different sizes. The blade is carried by a head that is depressed along a guiding standard by a cam handle pivotally secured to the latter.

A further object of my invention is to provide means carried by the slidable head to receive blades of different sizes for firm at tachment thereto by a screw clamp.

It is another object of my invention to pro- L vide means on the base of the standard for holding cans of different sizes firmly under the cutting blade.

Another object of my invention is to provide means within the blade itself for pull- 0 ing off the top of the can after it has been opened.

Other important and incidental objects will be brought out in the following specification and particularly set forth in the subjoined claims.

In the accompanying drawings illustrating my invention, Figure 1 is a side elevational view of my can opener. Figure 2 is a rear view of the upper portion of the can opener, showing the removable blade and handle. Figure is a cross sectional View 0 taken on the line 3-3 of Figure 1, looking toward the recessed base. Figure 4 is a cross sectional view taken on the line H of Figure 1, looking toward the blade carrying head. And Figure 5 is a sectional View taken through the rear portion of the blade,

showing the head portion of the attachment screw.

Referring to the accompanying drawings for a detailed description of my invention, the numeral 1 designates a standard secured upon the narrow portion of a curved triangular base 2. The latter is formed 111 its top portion with a circular recess 2 to receive the bottom of a large can. Crescent shaped beads or flanges 3, 4 and 5 form with the flange 6 that defines the large can receiving recess 2 rims of Varying diameters to firmly hold cans of different sizes on the base 1930. Serial No. 473,910. j

for the descending blade soon to be de scribed.

Slidable upon the standard 1, which is square in cross section, is a blade carrying head 7. The latter is formed with a square sleeve 8 that loosely fits the standard for reciprocation thereon, and with a ribbed part 9 that projects radially from the sleeve, over the circular part of the base 2.

Integral with the ribbed radial part 9 of the head 7 is a disc 10 against the under sur face of which the upper part of a blade 11 1S adapted to rest. The blade 11 consists of a triangular bowed or folded blank having a top edge 12 defining a plane and two cutting edges 13, 13 that meet in the apex of the blank. Formed at the middle point of the top edge of the blank is an apertured lip 14. Formed in the opposite side of the blank is a hole adapted to receive a radial screw 15, the N head of the screw being inside the folded blank while a lock nut 16 applied to the screw engages the outer surface of the blank to securely attach the screw thereto.

Blades of different sizes go with the device so that one of a size to fit the can to be opened may be easily attached to the head 7 by the following means.

Projecting downwardly from the outer edge of the head 7 is an car 17 having a hori zontal U-shaped slot 18 to receive the outer end of the screw 15. Projecting downwardly from the inner part of the head 7 are pins 19. These pins are so located on the under surface of the head 7 that one of them will fit the hole in the lip i l of the blade selected for use. In other words, when a blade 11, of thr size selected to open a can upon the base 2, is applied to the head, the lip 1 1 is first applied to one of the pins 19 and the screw 15 inserted in the U-shaped slot 18 of the ear 17 (See Figures 1 and 2.)

A hand wheel 20 isthen applied to the outer end of the screw 15 to engage the ear 17 to cooperate with the pin 19 to securely hold the selected blade on the head 7 ll ith the bottom of the can firmly seated on the base 2 within the flange which is adapted to securely hold it there, the blade 11 is moved 113i downwardly into engagement with the top of the can by the following means.

Secured to the top of the standard 1 is an outboard curved arm 21. Pivotally secured by a pin 22 to the outerapertured end of the arm 21 is the outer bifurcated end 23 of a cam handle 24:. The two arms of the bifurcated portion of the handle 24 have widely curved cam portions 25, which engage the top of the sleeve portion 8 of the head 7.

Beyond its cam portions, the handle 24 curves upwardly and outwardly over the disc portion of the head 7. Pressure exerted upon the outer end of the handle will, therefore, press the head 7 downwardly to force the blade 11 attached thereto through the top of the can upon the base 2. After its cutting operation is performed, the blade 11 is returned to its normal position by two helical springs 26, 26. These springs are attached at their lower ends to apertured cars 27, 27 on the sides of the sleeve portion 8 of the head 7 and at their upper ends to apertured cars 28, 28, projecting outwardly from the sides of the arm 21.

For the purpose of raising the top from the can after it has been cut through by the blade 11, the latter is formed on its inner surface, which is above its apex end, with a boss 29, which, after it passes through the can top, will engage it during its return upward movement to pull it from the can.

It is now seen that I have provided an easily operated device for opening cans of different sizes while they are firmly held upon the flanged base. The device not only cuts cleanly through the can top, but removes it from the can upon the return of the blade to its normal position.

Having described my invention, I claim:

1. A can opener comprising a base to support a can to be opened, a standard on said base, a head slidable upon said standard and projecting over the base, handle means for depressing the head, a downward projection on said head near the standard, a cupped blade, an apertured part on the inner portion of said blade to tit said projection, and removable means secured to the outer part of said head to cooperate with said projection in securing the blade to the head.

2. A can opener comprising a base to support a can to be opened, a standard on said base, a head slidable upon said standard and projecting over the base, handle means for depressing the head, a pin projecting downwardly from said head near the standard, a cupped blade, an apertured lip on the inner part of said blade to fit said pin, a radial member projecting outwardly from said blade, and a depending ear on said head formed with a slot to receive the radial member to co-operate with the pin in supporting the blade for passage through the can top when the handle means is depressed.

3. A can opener comprising a base to support a can to be opened, a standard on said base, a head slidable upon said standard and projectin over the base, handle means for depressing the head, a pin projecting downwardly from said head near the standard, a cupped blade, an apertured lip on the inner part of said blade to fit said pin, a radial screw projecting outwardly from said blade, a depending car on said head formed with a horizontal U slot to receive the radial screw, and a threaded hand wheel on the outer end of the screw for the purpose specified.

4. A can opener comprising a base, a standard on the latter, a blade movable vertically along said standard, means for depressing said blade, a circular bead formed on said base. and crescent shaped beads formed on said base within the circular bead to define recesses of varying diameters to firmly hold cans of dillerent sizes on the base for the descending blade.

In testimony whereof I have hereunto set my hand this 6th day of August, 1930.

CASHLY A. HENRY.

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