US1033091A - Receiving-box for metal-scrap-compressing machines. - Google Patents

Description

' J. DUNN.

RECEIVING BOX FOR METAL SCRAP GOMPRESSING MACHINES.

APPLICATION FILED DEC. 4, 1909. 1,033,091 Patented July 23, 1912.

2 SHEBTS-SHEBT 1.

INVENTOR $2 BY ATToRNEYs WITNESSES? Q96 COLUMBIA PLANOGRAPH Co., WASHINGTON, D. c.

J. DUNN.

RECEIVING BOX FOR METAL SCRAP GOMPRESSING MACHINES.

APPLICATION FILED DEG. 4, 1909.

1 ,O33,091 Patented July 23, 1912.

2 SHEETS-SHEET 2.

UNITED STATES PATENT oFFIoE.

JOHN DUNN, OF STREATOR, ILLINOIS, ASSIGNOR TO THE VULCAN DETINNINGi COM- PANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY RECEIVING-BOX FOR METAL-SCRAP-COMPRESSING MACHINES.

To all whom it may concern:

Be it known that I, JOHN DUNN, a citizen of the United States, residing at Streator, in the county of Lasalle and State of Illinois, have invented certain new and useful Improvements in Receiving Boxes for Metal Scrap Compressing Machines; and I do hereby declare the following to be a full, clear, and exact desoription'of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to machines for compressing metal scraps, as, for example, the detinned scraps in a detinning plant.

Machines of the character to which the invention is applied, are disclosed in United States Patents to Laernoes and Dunn, Nos. 737,424 and 7 37 ,425, of August 25, 1903.

The object of the invention is to improve the construction of the receiving boxes in which the scrap is compressed in such machines.

In the drawings, Figure 1 shows one of the boxes in its assembled form in elevation, and Fig. 2 is a section on the line 22 of Fig. 1; Fig. 3 is a top plan view; Fig. 4 is a vertical central section; Fig. 5 is a top plan view of the lower terminal section or base box of one of the receiving boxes; and Fig. 6 is a section on the line 66 of Fig. 4.

It will be observedthat the receiving box is made up of a lower terminal portion or base box A and an upper portion B resting upon the base box. The base box has preferably a circular outline (so that it may fit within a carrier ring which forms part of the compressing machine) and is built up of three heavy, strong iron or steel rings 1, 2 and 3, shrunk upon a lining 4. The lower ring 3 is shouldered internally as best illustrated in Fig. 4 to receive the lining 4 of the base box and hold it slightly above the lower face of the ring, so that the lining itself does not bear upon the surface on which the receiving box rests. The lining member 4 is preferably made of two complementary pieces ofchilled steel, having, when fitted together, as in Fig. 2, a circular outline, and inclosing a rectangular central chamber slightly flaring toward its lower end, whereby there is imparted to the compressed block of scraps a tapering shape which facilitates its ejection. The upper ring 1 carries four flanges 5 overhanging the Specification of Letters Patent.

Application filed December 4, 1909.

Patented July 23, 1912.

Serial No. 531,352.

lining 4 and forming a square into which the lower square end of the upper portion of the receiving box fits. This upper portion preferably comprises two metal castings 6 fastened together, as illustrated, by strong bolts 7 passing through heavy ears 8 cast integral with the parts 6, and this upper portion is strengthened progressively toward its lower end by gradually thickening the walls, as shown in Fig. 4, and by integral flanges 9, the bottom flange being a sufficient distance abovethe lower end to permit the fitting of this end into the flanges 5 on top of the base box. It is intended that these boxes shall be used in a series, arranged in a circle, and to facilitate this, it is convenient to form the upper end of the box into a flaring flattened portion or apron 10 surrounding the top opening and having upstanding rims 11 and Ben the inside and outside respectively, the two rims conforming to two concentric circles, so that when the tops of the boxes are joined by intermediate segmental plates there is formed a continuous annular deck at a convenient level to permit the operators to fill the boxes with the metal scrap.

The customary mode of operation of such machines is to fill the box with the metal scrap and thereupon to deliver to the scrap a series of blows by means of a plunger fitting closely within the receiving box, a suflicient number of blows being given by the plunger to thoroughly compact the scrap. Thus, in the machine in which the receiving boxes are five feet deep, for example, it will usually take not more than three or four blows of the plunger to compress the scrap, the first, or the first and second blows, will compress the scrap well down into the receiving box to about the level of the joint between the upper portion of the receiving box and the base box, and two more blows will usually compact the scrap into a solid block about six inches thick in the very bottom of the base box. It will readily be seen how necessary it is that the lower portion of the receiving box should have great strength to withstand the pressure of such blows; and the advantage of the flaring sides of the bottom portion of the base box will also be appreciated, since they permit the compacted block to be ejected from the box by a comparatively slight blow.

By building up the receiving box in the manner described, with the lower terminal portion or base-box A and the upper castings B, increasing in thickness and flanged toward the bottom, it is possible to get the requisite strength for the upper portion at comparatively little expense, and to provide at the very bottom portion of the box a construction having a resisting power which far exceeds that of the casting and permits theuse of material which would be unduly expensive it applied to the upper portion.

\Vhat I claim 1. A receiving box for scrap-metal. compressing machines, comprising a strong, heavy, metal base-box and an upper box portion in alinement with and fitted into the base-box; substantially as described.

2. A receiving box for so ap-metal compressing machines, comprising a strong, heavy, metal base-box consisting of a metal lining bound and completely enveloped by metal rings, and an upper box portion in alinement with and fitted into the base-box; substantially as described.

3. A receiving box for scrap-metal com pressing machines, comprising a strong, heavy, metal base-box consisting of a chilled steel lining bound by metal rings shrunk onto the lining, and an upper box portion in alinement with and fitted into the basebox; substantially as described.

1-. A receiving box for metal-scrap conipressing machine having a lining with smooth interior walls, and a ring closely fitted around the exterior of the lining and adapted to support the bottom thereof above the bottom of the ring and to supplement the strength of the lining; substantially as described.

5. A receiving box for metal-scrap compressing machines, comprising a strong, heavy, metal base-box consisting of a twopart chilled steel lining bound and completely enveloped by metal rings shrunk onto the lining, and an upper box portion made up oi castings of increasing strength toward their lower ends, bolted together and fitted into the base-box; substantially as described.

I11 testimony whereof I aflix my signature, in presence of two witnesses.

JOHN DUNN.

Yl itnesses Grnonon GOULDING, HARRY N. LUKINS.

(Jopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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