US603817A - Bauer - Google Patents

Description

(No Model.)

B. M. HALLBAUER.

CAN.

No. 603,817. Patented May 10,1898.

wzw

UNITED STATES ERNST MORITZ HALLBAUER, (AJLQHIGAGIQLJQLINOIS.

PATENT Orricnr CAN.

SPECIFICATION forming part of Letters Patent No. 603,817, dated May 10, 1898.

Application filed May 15, 1897. Serial No. 636,630. (N0 model.)

To all whom it. may concern:

Be it known that I, ERNST MORITZ HALL- BAUER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Cans, of which the following is a specification.

Myinvention relates to an improvement in the class of cans which are commonly formed of sheet metal and are adapted to hold liquids by rendering liquid-tight their closure through the medium of their covers.

My invention relates particularly to the construction of the head portion of the can, including the nozzle and the cover which engages with it; and my object is to provide a simple but novel construction of that portion which shall not only accomplish the desired object of rendering the can-closure perfectly liquid-tight, but whereby also the tightness of closure shall be produced by a very small extent of contact-surface circumferentially between the engaging parts of the nozzle and cover, so that the circumferential engaging portion of the nozzle may be readily formed with sufficient evenness to avoid air-spaces by insuring contact with every point about it of the cover-flange and that the cover maybe removed with ease.

Referring to the accompanying drawings, Figure 1 is a view of my improved can in elevation with the upper portion shown in vertical section to display the features of my improvement. Fig. 2 is a cross-sectional view of the cover, showing its preferred construction; and Fig. 3 is a similar broken View of thecan-body equipped at its head portion with my improved construction of nozzle.

A is the body of the can, which may be of circular cross-section, as shown, or of other form.

B is the can-head, fastened about the top edge of the can and formed with the circumferential gutter-like depression r between sides 19 and 'n, the latter extending about the opening 0 in the can-head and forming the neck or nozzle n, About the upper edge of this nozzle is formed the outward-projecting narrow bead m, from which there projects inward about the opening 0 the annular reinforoing-flangel; .The bead may, however, be formed lower down on the nozzle than shown, if desired.

A C is the cover, which I prefer to form out of a single piece of sheet metal by crimping a disk circumferentially at a desired distance from its center to produce the circumferential shoulder is and extending therefrom the annular smooth or uncorrugated flangez' of a diameter to adapt it to fit tightly over the bead m about the nozzle n.

To apply the cover 0, it is pressed at its flange 2' over the nozzle n and should be forced v on till the bead m coincides with the inner end of the inturned portion forming the shoulder 70. 'It is not, however, essential that there shall ensue this coincidence, inasmuch as the inner surface of the cover-flange will engage the bead at any point along the flange and produce the scaling function. Thus the fric- 7o tional contact between the cover and nozzle is produced about practically a mere line of surface which may be readily formed in mak ing the can on a true circle, so that contact and consequent tight closure may be assured at every point. The inturned flange Z adequately reinforces the bead to resist any tendency to bend and thus deflect it from its circle by the strain of the tight-fitting coverflange t, and as a particularly important advantage of my improved construction the cover, however tight its fit or lodgment, may be very easily removed by prizing it at any point of the free edge of the shoulder k, owing to the narrowness of contact-surface thereof with the bead m to be overcome, which acts along a portion of the opposite side of the can I to which the strain of prizing is applied and after the cover has been started in the nature of a fulcrum upon which to turn the coverflange inward into the externally-recessed portion .of the nozzle 41 below the projecting bead.

What I claim as new, and desire to secure by Letters Patent, isr I 1. A can having the head B formed with a circumferential depression 1 and a nozzle about the opening, said nozzle having an outward-projecting bead m presenting to the inner surface of the cover-flange, for engage- 10o ment therewith, practically a mere circumferential line, substantially as and for the purpose set forth.

2. A can having the head 13 formed with a circumferential depression r and a nozzle about the opening, said nozzle having an outward-projecting bead m presenting to the inner surface of the cover-flange, for engagement therewith, practically a mere circumferential line, and provided with an inturned reinforcing-flange Z, substantially as and for the purpose set forth.

3. In a can, the combination with the canbody of a head formed with a circumferential depression 0" and a nozzle about the openin g, said nozzle having an outward-projecting circumferential bead m presenting about its greater circumference practicallya mere line, and a cover 0 having the shoulder 70 and flange i to surround said nozzle and engage with said bead, substantially as and for the purpose set forth. I

4. In a can, the combination with the canbody of a head formed with a circumferential depression 1" and a nozzle 11 about the opening, said nozzle having an outward-projecting bead m about its edge, presenting about its greater circumference practically a mere line and an inturned reinforcing-flange Zon said nozzle, and a cover 0 having the shoulder 70 and flange t' to surround said nozzle and engage with said head at the inturned end of said shoulder, substantially as and for the purpose set forth.

ERNST MORITZ I-IALLBAUER. In presence of J. H. LEE, R. T. SPENCER.

Images