US2760629A - Container for asphalt - Google Patents

Description

Au 28, 1956 G. F. THAGARD, JR

CONTAINER FOR ASPHALT Filed May 17, 1952 Smaentor GEORGE E 72/464219, Jej

(Ittorne'g United States Patent CONTAINER FOR ASPHALT George F. Thagard, Jr., South Gate, Calif.

Application May 17, 1952, Serial No. 288,375

1 Claim. (Cl. 206-56) This invention relates to a container for asphalt.

The provision and transportation of asphalt to the site where the same is applied present difficulties that entail wastage of labor, cumbersomeness of handling, and increased costs of labor. The foregoing can, in a large measure, be eased or reduced by providing asphalt in packages or units capable of easy handling. The present invention is more particularly concerned with asphalt such as used for roofing purposes and is known as steamblown or oxidized roofing asphalt. For such use, the provision of handleable units of asphalt such as herein contemplated affords the advantages above-mentioned. Accordingly, it is an object of the present invention to provide a container for asphalt of such form that a handleable unit of such material is enclosed therein and available to the user without waste and, moreover, is easily and economically handled.

Another object of the invention is to provide an inexpensive discardable container of the character indicated, that is adapted to be quickly peeled away from its solid asphalt contents.

The invention also has for its objects to provide such means that are positive in operation, convenient in use, easily installed in a working position and easily disconnected therefrom, economical of manufacture, relatively simple, and of general superiority and serviceability.

The invention also comprises novel details of construction and novel combinations and arrangements of parts, which will more fully appear in the course of the following description. However, the drawing merely shows and the following description merely describes preferred embodiments of the present invention, which are given by way of illustration or example only.

In the drawing like reference characters designate similar parts in the several views.

Fig. l is a side elevational view of a packaged unit of asphalt according to the present invention, the container thereof being broken away in part.

Fig. 2 is a top plan view thereof.

Fig. 3 is a fragmentary inner face view of said container.

Figs. 4 and 5 are fragmentary plan views of modifications.

The present container for asphalt comprises, generally, a sheet of corrugated or comparable heavy or thick paper 5 adapted to be formed as an elongated tube 6, a line of breakaway stitching 7 to separably connect the lateral edges of sheet 5 when so formed, a bottom 8, also comprising corrugated paper and afiixed to the tube 6 as by a line of stitching 9, and a coating 10 on the inner face of both sheet 5 and bottom 8 to obviate adhering of said paper and bottom to the cylinder of asphalt 11 in tube 6. In the forms of Figs. 1, 2 and 4, the lateral edges of sheet 5 are shown as abutted by providing outturned flanges 12 on said lateral edges. In Figs. 1 and 2, the line of stitching 7 is applied through the abutted flanges. In this manner, the cylindrical package is provided with ice means preventing rolling. Tube 6 is made up before bottom 8 is stitched in place. As seen at the bottom of Fig. 1, the flanges 12 are flattened against the tube and line of stitching 9 passed therethrough. Thus, possible leakage at the lower corner is obviated.

A conventional chain stitch, that readily unravels when the end 13 thereof is pulled, comprises stitching 7. Thus, it is a simple matter to disconnect flanges 12 when the container is to be removed from the asphalt cylinder therein by a pull on end 13.

The coating 10 is preferably sprayed on and may comprise a suitable non-adhering material or composition of which bentonite and talc, together or singly, are examples. By providing such a coating on the inner faces of the container, the same is readily peeled away when stitching 7 is removed.

The asphalt 11 is in a heated liquefied or pourable form when introduced into the made-up container and, therfore, may have a tendency to seep through the stitching 7 before it can set to form-retaining hardness. To obviate such seepage, a strip 14 of suitable paper or fabric may be pasted to the inner face of sheet 5 adjacent to one lateral edge thereof substantially as shown in Fig. 3. Said strip constitutes a barrier across the seam formed by flanges 12 as seen in Fig. 2, and is provided with the same coating as is applied to sheet 5.

The line of breakaway stitching 7 may be replaced by equivalent means that will separate flanges 12 and enable removal of tube 6 from the cylinder of asphalt 11. For instance, as shown in Fig. 4, said flanges 12 may be lightly glued or cemented together as at 15 with a pull string or wire 16 on the inward side of said flanges. Thus, an outward or forward pull on one end of the string or Wire will break the cement and separate said flanges. A suitable number of staples 17 connecting flanges 12 may replace the cement. As shown in Fig. 5, said staples 17 connect the lateral edges of sheet 5 which are shown in overlapping arrangement instead of outturned as before. It will be realized that said staples may be replaced by stitching 7 or by glue 15, as desired.

By making up the above-described unit in a size to enable easy handling .by one man, asphalt is made readily available for heating to liquefaction on the job in an economical and facile manner and it will be evident that the object of the invention are realized in the container disclosed.

While the invention that has been illustrated and described is now regarded as the preferred embodiments, the construction is, of course, subject to modification without departing from the spirit and scope of the invention. It is, therefore, not desired to restrict the invention to the particular form of construction illustrated and described, but to cover all modifications that may fall within the scope of the appended claim.

Having thus described the invention, What is claimed and desired to be secured by Letters Patent is:

A container comprising a cylindrical tube of corrugated paper, asphalt filling said tube and initially poured thereinto, said asphalt-filled tube being ordinarily adapted to roll, the longitudinal edges of said paper comprising outturned flanges in face-to-face relation to form a longitudinal roll-arresting radial projection on a cylindrical surface of the tube, a line of breakaway stitching perforating the radial projection and connecting the flanges, a longitudinal sealing strip disposed on the inner side of the tube along the line where the outturned flanges join to cover the seam thus formed and seal the same against asphalt within the tube reaching the perforations formed by the line of stitching, thereby obviating seepage from the interior of the container, a bottom closure within the tube to hold asphalt while in a pouring state, said closure including a peripheral flange in contact with the inner face of the paper tube, and a circular line of stitching connecting said latter flange and the corrugated tube to secure the closure to the tube, the adjacent end of the radial projection being bent to a flattened position against an adjacent portion of the tube and said circular line of stitching passing through said bent part to seal the container where the bottom closure and the seam between the flanges meet.

References Cited in the file of this patent UNITED STATES PATENTS Re. 18,799 Lichtig Apr. 18, 1933 727,786 Grace May 12, 1903 809,050 Goldmann Jan. 2, 1906 4 Bolger Mar. 17, Dever Mar. 20, Soutter Aug. 14, Schlumhohm Dec. 21, McPherson May 17, Lakso Oct. 31, Walters Aug. 26, Nichols Jan. 20, Stuart et a1. June 5, Stoll Oct. 13,

FOREIGN PATENTS Great Britain Apr. 2, Great Britain Nov. 30, Great Britain Nov. 1,

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