US1453508A - Container or receptacle for carbide and the like - Google Patents

Description

J. C. KING CONTAINER O'R RECEPTACLE FOR CARBIDE AND THE LIKE Filed May 31 1919 Patented May I, 1923:.

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JESSE C. KING, OF MONTREAL, QUEBEC, CANADA, ASSIGNbR TO CANADA CARBIDE COMPANY, LIMITED, 013' MONTREAL, CANADA.

CONTAINER 0R RECEPTACLE EOE CARBIDE AND THELIKE.

Application filed May 31, 1919. Serial No. 300,915

1 0 all whom it may concern:

Be it known that I, Jnssn C. KING, a citizen of the United States, and resident of the city of Montreal, in the Province of Quebec and Dominion of Canada, have invented certain new and useful Improvements in Containers or Receptacles for Carbide and the like, of which the following is a,,full, clear, and exact description. a

This invention relates to improvements in metal containers and, while the invention may be applied to containers for any size or purpose, it is specially designed for containers of large size which must have sufficient strength to stand transportation unprotected and at the same time have an easily removable closure which will remain absolutely air-tight.

A further object is to provide a container specially adapted for the transportation and storage of carbide and similar substances.

A still further object is to provide a can which may be used repeatedly.

At the present time when goods subject to deterioration by exposure to air or moisture are to be packed in metal receptacles, it is customary to employ a receptacle with a soldered-in cover. These receptacles are usually constructed of sheets of metal seamed together and, to ensure hermetic sealing, the

seams are soldered. In the case of commodities such as carbide, large cans are used which makes the employment of tin plate and soldering a very expensive matter and also makes the provision of a soldered-in cover practically impossible. The cans admit air and moisture at the seams and around the cover and, especially if subject to rough usage, are not available for reuse as they are considerably battered out of shape. It has been practically impossible to make these large cans of sufficiently heavy sheet metal to resist deformation, owing to the weight of the metal being limited by the necessity of seaming.

A can according to this invention can be made absolutely seamless and therefore the weight of metal in the can may be increased to give the requisite strength. The heavier metal used enables an improved form of I cover to be used which will be absolutely air tight and which is of such nature that it is not impaired by opening, so that the can may be available for a great amount of reuse.

" According to this invention, a can is constructed of two substantially cup-shaped parts'connected together at their edges by electric or other welding. One of the parts is provided with an opening and means for securing a double cover therein.

In the drawings which illustrate the inerably steel. The member 11 is closed at the bottom, while the member 12 has an opening 13 in the bottom thereof. The metal around the opening'13 is then formed into an in wardly projecting neck, shown in Figure 2, having a. threaded portion 14 adjacent the bottom of the cup, an inturned flange 15 located in a plane parallel with the cup bottom and a lip 16 located in a plane approximately parallel with the plane of the cup wall. In each of these cups the wall and bottom merge into one another in a smoothly curved portion 17. The cups are each provided with circumferential corrugations 18 in any suitable number and arrangement. The cup 12 is finally inverted and the edges of the two cups secured together along the line 19 by electric welding or other suitable means. After the welding operation the two cups have become so intimately joined that they form an absolutely one-piece can body, which is stiffened and strengthened by the circumferential corrugations 18 and the neck. The can is completed by providing a compression cover 20 which will fit tightly in the lip 16 and which may if desired be provided with a circumferential flange 21.

. adapted to rest on the neck flange 15. An

outer cover 22 is provided having a threaded lip 23 adapted to screw into the threaded portion 14 of the neck. Each of these covers may be provided with a suitable handle 24. The positions of the covers may be reversed.

The operation of the device is extremely simple. The can is filled and the compres sion cover pressed into place. The cover 22 is then screwed into place and holds the compression cover against dislodgement or loosening. The provision of the threaded flange on the cover 22 enables the handle of the outer cover to be flush with or below the top of the can, so that it is protected from injury and does not interfere with the piling of the cans one on another. It is obvious that the can may be opened and closed as often as desired without injury.

The can body, being in one piece, has no seams which can burst open or be loosened to admit air or emit the contents of the can. The seamless construction enables the use of metal which is sufliciently heavy and rigid to withstand much harder usage than will be sustained by a seamed can. The corrugations 18 formed in the heavy metal so strengthen the can that it vill withstand any radially applied crusl'iin stresses to which it may be subjected. The heavier metal which it is possible to use on account of this construction will also resist blows which would puncture the metal ordinarily used in seamed cans. The ordinary seamed cans have circumterential seams securing the top and bottom, which seams soonbecome battered and torn, making;- the can dangerous to handle. The smoothly rounded edges of the can according to this invention are stronger than seamed edges and will not become torn. These rounded edges furthermore enable the can to be completely and easily emptied, as there are no sharp inside corners from which it is ditiicult to remove the contents of the can. A can formed according to this invention is not only much stronger and more durable than an ordinary can of equal capacity but is much cheaper, as no wooden protective cover is required such as is frequently necessary for ordinary cans.

While the can has been shown as composed of two cups of substantially equal depth, so that the welded joint comes midway between the top and bottom of the can, it will be understood that one'cup may be deeper than the other if desired or that two cups may be welded to a seamless cylindrical body portion without departing from the spirit of the invention.

Having thus described my invention, what I claim is;

ts a new article of manufacture, a container for carbide and the like, comprising a pair of cup-shaped members each having a substantially flat end or bottom and a circumterential wall integral therewithand merging gradually into theend 'vvallin a curve sufficient radius to eliminate sharply defined external ridges and int'e'rnal' crevices,

the said members being connected at their tree edges, and one oil" said members having in its bottom an opening, and a flange surrounding the opening projecting inwardly ot the container and toward the axis thereof JESSE 0. KING.

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