US1004013A - Can-opener. - Google Patents

Description

B. 0. GIBSON.

CAN OPENER.

APPLICATION TILED mums, 1911.

Patented Sept. 26, 1911.

BEL'A O. GIBSON, OF SPOKANE, WASHINGTON.

CAN-OPENER.

Specification of Letters Patent.

Application filed March 23, 1911.

Patented Sept. 26, 1911.

Serial No. 616,494.

I To all whom it may concern:

Be it known that I, BELA O. GIBsoN, citizen of the United States of America, residing at Spokane, in the county of Spokane and State of lVashington, have invented certain new and useful Improvements in Can-Openers, of which the-following is a specification.

This invention pertains to can-openers,

and has for-its object to provide a device'of the character mentioned that will automatically adjust the knife to a position on the cover of the can adjacent to the rim thereof and maintainthe same at a uniform distance from the rim whether the pivoted point of the shank carrying the knife is at thercenter of the-top of the can or not..

' companying drawings, in which,

Flgure 1, is an elevation of the device,

complete, Fig. 2, is a side elevation of the end of the' shank carrying the hub and perforatingpoint, Fig. 3, is a bottom view of the Same-, andQFig. 4 is a sectional view 3f the combined'di'sk-knife, hub and shouler. i

No special construction is claimed for the handle 10 no for the upper end of the shank 11, provided however, the shank at that end should be cylindrical. The shank 11 has slidably adjusted thereto a combined disk-knife 12, a hub 13 and a shoulder 14. The periphery of the circular disk-knife 12 constitutes the cutting edge, the hub 13 is adapted for rotation over the top outer edge of the can being opened and the shoulder 14 to bear against the upper outcr edge of the can to act as a sustaining means to hold the mechanism in such a uniform po-' sition in relation to the top of the can, that the cutting edge of the-disk 12 will at all times be a uniform distancefrom the outer edge thereof. The combined parts 12, 13 and 11 are slidably adjusted to the shank 11 so that the same may assume a position thereon nearer the handle portion 10 as shown by the dotted lines 15 or a position nearer the other end of the. shank. This feature is to permit of the adjustment of the mechanism to different sized cans, also permitting the automatic adjustment of the disk-knife and connecting parts to a uniform position, as relates to the upper outer edge of the can, in their rotation thereon, whether the pivoted bearing of the shank is at the center of the can or not. An elongated perforating point 16 is provided at the lower end of the shank 11, extending outward therefrom and substantially horizontal therewith but on a lower plane, and connected with the end of the shank by a hub 17. The shank 11, hub 17 and point 16 are integral, the end of the shank being beveled as at 18. The lower end of the shank 11 is knife 12 a proper angle in opening cans.

having a top of small diameter and prevent the same from bein forcedfrom its desired uniform rotation in its relation to the top outer edge of the can. This deflection of the shank between thejhub and the cutter results in angul'arly displacing the cutter with reference to a radial line from the hub-center, and in giving it a proper angle in opening cans of small diameter.

In the practical application of the device in opening cans, the point 16 is forced through the top of the can as near the center thereof as may be reasonably calculated, the shank 11 brought to a nearly horizontal position, the hub 13 adjusted to the outer edge of the can'and the disk-knife 12 thrust through'the'top thereof, a circular motion of the handle 10 with a little downward pressure thereof carries the disk-knife 12 around the inner surface of the outer edge of the can, severing the top therefrom. matters not as to whether the top of the can is perforated by the point 16 at its exact center, as the slidability of the adjustment, of the disk-knife 12 and integral parts upon the shank 11 will maintain the uniformity of the cutting edge in its relation to the top,

edge of the can. The oblong point 16 :r

useful in maintaining the rigidity of the top of the can while being'severed fIOmthQi.

can as the same binds against the under{". surface thereof as the d sk-knife portion is being forced around the outer edge thereof. The beveled end 18 of the shank 1? provides surface thereof.

Having thus described my invention What the end of the shank adjacent to the elon- 10 I claim as new and useful and desire to segated point being beveled on its under side cure by Letters Patent is, and horizontally deflected. 1

In a can opener provided with a shank In testimony whereof I atfiX my 'signa- 5 having a knife adjusted thereto and a hanture in presence of two Witnesses.

dle at one end thereof, an elongated point BELA O. GIBSON. at the end opposite the handle, substantially /Vitnesses: horizontal with the shank but on a lower WILLIAM H. KA E,

plane and connected therewith by a hub, A. L. GIBSON.

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