US2514069A - Tin opener - Google Patents

Description

E. JORGENSEN July 4, 1950 TIN OPENER '2 Sheets-Sheet 1 Filed Dec. 6, 1946 Fig.4

Z 2?/ v elvzaz IE. J01

y 1950 E. LJORGENSEN 2,514,069

' TIN OPENER Filed Dec. 6, 1946 2 Sheets-Sheet 2 L cantor ziwgya Patented July 4, 1950 Emanuel J orgensen, 'Iividaie, England Application December 6, 1946, Serial No. 714,475 In Great Britain December 11, 1945 2 Claims. (01. 30-22) This invention has for its object to provide an improved opener for tins of the kind having an external bead around the edge to be severed by the opener.

In the accompanying drawings Figure 1 is a side view illustrating the operative end of a tin opener embodying the invention, and Figure 2 is an end view of the same. Figures 3 and 4 are respectively plan and inverted plan of the said end of the tin opener.

Figures 5 and 6 are two views illustrating the mode of use of the tin opener.

In carrying the invention into effect in the manner shown there is employed a shank a of any convenient form. Preferably it is of bladelike form and made from steel. At one end the shank is secured to a handle b, of which a part only is shown in Figure 1. Near the forward end of the shank and extending at right angles from one of its edges is formed a short cutting blade 0. Preferably this is made slightly bowed in cross section (see particularly Figure 4) to enable it to follow closely the inner surface of a circular tin as d. The operative lower edge of the blade has an oblique disposition with respect to the shank, and at its rear lower corner it is formed with a projecting point e for penetrating the cover f of the tin.

At the forward end of the shank a is formed a projection g which extends outwardly at nearly a right angle to the plane of the shank, and on this projection is carried a fulcrum piece it which can rock laterally on the projection against the action of a spring i mounted on the projection and adapted to hold the fulcrum piece in its operative position. The fulcrum piece is made from a length of metal strip which is formed at one end with an upturned hook 7' adapted to engage the underside of the bead k on the tin, a hole being formed in this piece near its other end to enable it to be mounted on the said shank projection. The disposition of the fulcrum piece is such that it lies parallel or nearly parallel with and at a short distance from the forward edge of the cutting blade 0.

Also there is rigidly secured to the shank a immediately adjacent to and behind the cutting blade 0 a guide piece 111.. This is made from a piece of metal strip which is attached at one end to the outer side of the shank and which at its other end is bent so that its lower extremity can bear against the outer side of the tin d, this extremity being preferably curved to a convex form. (See particularly Figures 2 and 4.)

To sever the cover portion f of the tin to be wholly or partly removed, the opener is placed in position as shown in Figure 5 so that the guide piece m bears against the outer side of the tin d, and the hooked end of the fulcrum piece it bears against the underside of the bead k (as shown in Figure 2), the cutting blade being in contact with the portion f to be out. A downward pressure applied to the handle then causes the point e on the blade 0 to penetrate the said portion and continued movement causes the edge of the blade to sheer the said portion as shown in Figures 2 and 6. After each cut the opener is advanced in a step-by-step manner, with repetition of the above described action at each step.

By this invention I am able to provide a tool which enables tins of the kind specified to be opened in a very convenient and expeditious manner. The invention is not, however, restricted to the example described, as details of construction may be modified without departing from the essential features of the invention. Further if desired the shank may have formed on it a hooklike crown cork opener n as shown in Figure 1.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. An opener for tins of the kind having an external bead around the edge to be severed by the opener, comprising in combination a shank adapted to be manipulated by the user, a cutting blade rigid with and extending laterally from said shank and having a cutting edge at the end remote from said shank, a guide provided on said shank and adapted to bear against the outer side of the tin, a laterally extending projection on the forward end of said shank, a fulcrum piece which is mounted on said projection 50 as to be rockable laterally in relation to said blade, and which is adapted to engage the underside of the bead on the tin, and a spring also mounted on said projection and serving to hold said fulcrum piece in its operative position.

2. An opener for tins of the kind having an external bead around the edge to be severed by the opener, comprising in combination a shank adapted to be manipulated by the user, a cutting blade rigid with and extending laterally from said shank and having a cutting edge at the end remote from said shank, a guide provided on said shank and adapted to bear against the outer side of the tin, a laterally extending flat projection on the forward end of said shank, a fulcrum piece mounted on said projection and adapted to engage the underside of the bead on the tin, and a spring also mounted on said projection and. serv- R FERENCES CITED ing to hold Said fulcrum piece its Operative The following references are of record in th position, said fulcrum piece consisting of a length file f thi patent:

of metal strip provided near one end with an 5 UNITED STATES PATENTS opening through WhlCh said pro ectmn passes, N N

and formed at the other end with a hook for 32 ,5 f Feb i engaging the underside of the bead on the tin. 558,176 Jones Oct 1925 EMANUEL JORGENSENL 1,517,261, Johnson, l. M81. 16, 1926

Images