US1641961A - Can opener - Google Patents

Description

Sept. 13, 1927.- ,961

H. BRUNEAU CAN OPENER Filed May 15, 1926 INVENTOR fluc'ryer Era/760a BY 16% QMM ATTORNEY Patented Sept. 13, 1927.

EUDGEB BBUNEAU, OF WOONSOCKE'I, RHODE ISLAND.

CAN OPENER.

Application filed May 15,

My invention relates to can opening devices adapted for the marginal cutting or marginal slitting of can tops.

The essential objects of my invention are adaptability for use upon cans of different dimensions; the insurance of engagement with the can throughout the slitting operation; the propulsion of the device continuously rather than intermittently; and the at- 1 tainment of these objects in an inexpensive and simply operable device.

To the above ends primarily my invention consists in such parts and in such combinations of arts as fall within the scope of the appen ed claims.

In the accompanying drawings which form a part of this specification Figures 1, 2, 3 and 4 are a plan, a front elevation, a rear elevation and an end elevation respectively of my opener attached to a can, the latter being shown fragmentanly, and

Figure 5, a partial section on line 5-5 of Figure 2.

Like reference characters indicate like partsthroughout the views.

As shown my opener consists of a carrier plate 7 provided with a depending bottom portion or lug 9, and having upon one end a vertically disposed rearwardly directed lateral guide loop 10. Pivoted at one end to the opposite end of the plate 7 by a pivot pin 12 is a flat arm 13 projecting through the loop 10 and loose in the latter. Upon the bottom of the arm, at its rear end, isa horizontal bearing lip 15, while integral with an intermediate portion of the lower edge is a depending slightly rearwardly ofi'set knife or blade 17 having an inclined beveled 'cutting edge 18 upon its bottom extremity terminating in a beveled point 19. A cam lever 21 is pivoted upon a pin 22 in plate 7 above the latch comprising an arm 23, and cam head 24, engageable with the top edge of the arm 13, and adaptedv to depress or release the latter in the loop 10 by swinging the arm 23 in either direction. In a hole 25- in the lug 9 is journaled a stud or shaft 26 fixed to one end of which is a disk 27 provided with peripheral teeth 28. The periphery of the wheel is slightly beveled, and the teeth are dia onally arranged. Fast to the other end of the shaft is a crank arm 30 with a handle 31. The' disk is in a vertill cal plane parallel with the plane of the blade 17, slightly spaced from the latter, and

1926. Serial No. 109,287.

is overlap ed by the same when the arm-13 is at the limit ofits downward travel.

In the drawings is shown sufiicient of a cylindrical can to illustrate the operation of my opener. 33 is the side, and 34 the to of the can, and 35 is the usual upwardly an laterally projecting bead upon the can periphery. In applying the opener to the can the parts are initially positioned as shown in broken lines in Figure 3. The rear edge of the lip 15 rests upon the head 35, and the lever arm 23 is then swung in the direction of the arrow thus moving the arm 13 downwardly, and forcing the blade 17 1 through the can top 35 into the position shown in full lines. The blade is now continuously advanced, and an annular slit 37 produced, by turning the crank and thus rotating the toothed disk 27 whose face slidably engages the can side 33, and whose toothed periphery en ages the curved under face of the bead 35, thus impelling the late 7 and the parts carried thereby aroun the can. In the described operating position it will be noted that the overlapping position of the blade 17 relatively to the disk 27 serves to lock the device against escape from the can. In fact the device cannot be re-- moved from the can after the completion of the cutting operation until the lever arm is reversed and the arm 13 manually elevated to the position shown'in broken lines. Thus injury to the operator during the cutting operation is prevented. The beveled peri hery of the disk and the diagonal disposition of the teeth thereof assists in maintaining the opener in snug engagement with the cam during the cutting operation, and furthermore assists in adapting the device to use upon cans of different shapes.

I claim 1. A can opener comprisin a carrier plate, 'an arm pivotally attac ed to the plate, a blade on the arm, a cam lever pivotally mounted on the plate for actuating the arm, an advancing disk rotatablysu ported by the plate parallel with the bl e and adapted to be overlapped thereby and means for rotating the disk.

- 2. A can opener comprising a carrier plate, an arm upon the plate, a bearing lip upon the arm, a blade depending from the arm adjacent the lip, an advancing disk rotatably mounted in the plate cooperating git]? the blade, and means for rotating the 3. A can opener com rising a carrier plate, an arm n on the p ate, a lever upon the plate for epressing the arm, a deendlng blade upon the arm, an advancitlgg disk rotatably mounted in the plate spa from the blade and adapted to be overlapped thereby when the arm is depressed, and: a crank operatively connected to the 4. A can opener comprisin a carrier plate, a lateral loop upon the p ate, an arm pivotally attached to the plate and slidable in the loop, a cam lever carried by the plate engageable with the arm, a bearing lip on the arm, a dependin offset blade uponthe arm, an advancing disk rotatably supported b the plate below the arm adjacent the blade, and means for rotating the disk.

5. A can opener comprising a carrier plate, a horizontally disposed arm carried thereby, a cam lever 11 n the plate above the arm and engageabe with the arm, a horizontal lateral hp upon the lower ed e of the arm, a depending blade u n t e lower edge of the arm, a shaft in t e plate below the arm, a crank upon the outer end of the shaft, and an advancing disk comprising a body upon the inner end of the shaft adjacent the blade and parallel therewith provided with a beveled peripheral portion, and diagonally disposed teeth upon the peripheral portion of the disk.

In testimony whereof I have aflixed my signature.

HUDGER BRUNEAU.

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