US3432160A - Support for bars undergoing a flame-cutting operation - Google Patents

Description

March 11, 1969 S. N. WOVCHA SUPPORT FOR BARS UNDERGOING A FLAME-CUTTING OPERATION Filed Dec. 27, 1966 INVENTOR SID/V5) IV. WOVCHA Atlam ey United States Patent 3,432,160 SUPPURT FOR BARS UNDERGOING A FLAME-CUTTING QPERATION Sidney N. Wovcha, Virginia, Minn., assignor to United States Steel Corporation, a corporation of Delaware Filed Dec. 27, 1966, Ser. No. 605,037 US. Cl. 269--287 Int. Cl. B23q 3/00 2 Claims ABSTRACT OF THE DISCLOSURE This invention relates to an improved support for metal bars or the like while they undergo a flame-cutting operation.

An object of the invention is to provide an improved support which not only positions a bar conveniently for flame-cutting it to specified lengths, but also furnishes a hood for handling the fumes, slag and metal produced in the cutting operation.

A further object is to provide an improved support of the foregoing type which is of simple construction readily fabricated mainly of light gage steel plates welded together In the drawing:

FIGURE 1 is a perspective view of my improved support from the rear showing a bar positioned therein for cutting; and

FIGURE 2 is a vertical sectional view of the support.

The support of my invention includes a front plate 10, back plate 12 and two side plates 13 and 14, all of trapezoidal outline, and a rectangular top plate 15. Conveniently these plates are of -gage hot-rolled steel. I weld the five plates together to form a hood which is shaped as a frustum of a pyramid and has an open bottom. The two side plates 13 and 14 have aligned openings 16 and 17 of similar configuration near their upper edges. I Weld a pair of brackets 18 and 19 at their ends to the inside faces of the top plate and front plate 10 near the upper edge of the latter. Conveniently the brackets are of At-inch hot-rolled steel roundsQThe upper edges of the brackets are even with the lower edges of the openings. The top plate 15 has a slot 20 located between the two brackets. I weld an exhaust pipe 21 to the back plate 12 and connect a conventional exhaust fan (not shown) to this pipe.

3,432,160 Patented Mar. 11, 1969 ICC In operation, I insert a bar or the like W endwise through the openings 16 and 17 and brackets 18 and 19. The openings and brackets are of a configuration to match the cross section of the bar. I slide the bar lengthwise to a position such that the line on which it is to be cut lies directly beneath slot 20. I then cut the bar with a conventional flame torch (not shown), which I apply at the slot. Fumes produced in the cutting operation are drawn into the hood and out the exhaust pipe 21. Slag and metal collect on the floor inside the hood. When I wish to make additional cuts in the same bar, I merely slide it lengthwise to appropriate positions for such cuts.

From the foregoing description, it is seen that my invention affords a support of simple construction to position a metal bar or the like for flame-cutting. The support also furnishes a hood for exhausting the fumes and collecting slag and metal. The support is particularly useful for cutting manganese steel bars to specified lengths. The openings and brackets which receive the bar can be made of any shape depending on the cross-sectional configuration of the bars with which the support is to be used.

While I have shown and described only a single embodiment of my invention, it is apparent that modifications may arise. Therefore, I do not wish to be limited to the disclosure set forth but only by the scope of the appended claims.

I claim:

1. A support for a bar undergoing a flame-cutting operation, said support comprising trapezoidal front, back and side plates and a rectangular top plate welded together to form a hood shaped as a frustum of a pyramid, said side plates having aligned openings immediately adjacent their upper edges through which a bar can be inserted immediately under said top plate, said top plate having a slot elongated in a direction parallel with said side plates, the bar being accessible for cutting through said slot, a pair of brackets fixed to the inside of said hood on opposite sides of said slot and having upper edges aligned with the lower edges of said openings to assist in supporting the bar, and an exhaust pipe connected to said back plate for carrying away fumes produced in the cutting operation.

2. A support as defined in claim 1 in which each bracket is welded at one end to said. top plate and at the other end to said front plate.

LESTER M. SWINGLE, Primary Exttminer. JAMES F. MCKEOWN, Assistant Examiner.

US. Cl. X.R. 269289 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,432 ,160 March 11, 1969 Sidney N. Wovcha It is certified that error appears in the above identified patent and that said Letters Patent are hereby corrected as shown below:

In the heading to the printed specification, lines 4 and 5 cancel "Virginia. Minn. assignor to United States Steel Corporz tion, a corporation of Delaware" and insert 722 Srd Street, South Virginia, Minn. 55792 Signed and sealed this 7th day of April 1970.

(SEAL) Attest:

Edward M. Fletcher, Jr. WILLIAM E. SCHUYLER, JR.

Attesting Officer Commissioner of Patents

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