US991195A - Pack-opening apparatus. - Google Patents

Description

c. w. BRAY. PACK OPENING APPARATUS.

APPLICATION FILED JULY 1, 1904.

Patented May 2, 1911.

3 SHEETS-SHEET 1.

wn'MssEs INVEN'I'OR G. W. BRAY.

PACK OPENING APPARATUS.

APPLIOATION FILED JULY 1, 1904.

991,195. Patentd May 2,1911.

3 SHEETSSHEET 2.

WITNESSES INVENTOR Car G. W. BRAY.

PACK OPENING APPARATUS.

APPLICATION FILED JULY 1, 1904.

991,195.- A Patented May 2,1911.

- s SHEBTSPSHEET a.

- furnaces from which the bars are fed and nnirnn sra' ns n orricn CHARLES W. BRAY, 0F PITTSBURG, PENNSYLVANIA, ASSIGNOR TO AMERICAN SHEET & TIN PLATE COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

PACK-OPENING- APPARATUS.

99L195. Specification of Letters Patent. Patented May 2, 11911, Application filed. July 1, 1904. Serial No. 214,984. To all whom it may concern: of the pack to carry it forwardly into the Be it known that I, CHARLES W. BRAY, doubling rolls. The blade being in lowered of l lttsburg, Allegheny county, Pennsylposition, the pack feeds forwardly against Vania, have invented a new and useful Packsuitable stops 26 and the blade then pushes Open1ng Apparatus, of which the followthe intermediate portion upwardly into the mg is afull, clear, and exact description, doubling rolls. From the upper rolls the reference being had to the accompanying doubled pack passes through guide rolls 27 drawings, forming part of this specification, and 28 and thence over the feed table 29 in Wl11Cl1 to a shear indicated at 30. At this point Figure 1 is a diagrammatic plan View of the scrap end of the pack is sheared off. a plant constructed in accordance with my From the shear the pack passes to any one invention; Fig. 2 is a diagrammatic side of a set of continuous heating furnaces 31 elevation of the same; Figs. 3 and 4 are through which the packs are fed continucross sections of the doubling apparatus; ously from the entrance opening 32 to the Fig. 5 is a side elevation on a larger scale outlet opening 33 at the other end. From of the opening apparatus; Fig. 6 is a top these reheating furnaces the packs are taken plan view of the same; and Fig. 7 is a deto any one of the ordinary single finishing tall View of the pass for the corrugating mills 34 of which I show three, one for rolls. each furnace. In case sheets of heavier My invention relates to the rolling of gages are to be rolled I do not double the sheets and is designed to provide a new and pack; and to prevent doubling I preferably improved apparatus whereby packs of sheets introduce a curved guide or stop 35 below may be rapidly and cheaply produced with the rolls 24 of the doubler. This curved a small amount of hand labor. guide causes the pack to feed upwardly In the drawings, referring to the form of through the doubler rolls without doubling, Figs. 1 an 2, 2, 2 are continuous heating the pack thence passing on to the shears where the crop ends may be sheared 011'. from which they drop upon roller tables 3 and pass to the table 4, whence they enter a continuous or tandem mill. I have shown six sets of rolls, 5, 6, 7, 8, 9, and 10 arranged in tandem in this mill, the metal feeding forward in the same line through the successive steps and then entering a matcher 11. The successive sheets are fed into this matcher one above the other and are thus matched and fed forwardly into the successive sets of rolls 12 and 13. The pack passing forwardly through these rolls 12 and 13 then enters an opening device. This opening device consists of a pair of corrugating rolls, 14 and 15, following which are bending rolls 16, 17, 18 and 19 which are arranged to bend the corrugated pack first in one direction and then in the opposite. From these bending rolls, the pack passes under the guide roll 19 and enters flattening rolls 20 and 21 which straighten and flatten the sheets of the pack. From the rolls 20 and 21 the pack passes forwardly over feed mechanism 22 to the doubler-in line therewith. The doubler is provided with upper rolls 23, lower rolls 24;, and a vertically reciprocating blade 25 which acts upon the central part apparatus are preferably yieldingly backed by springs 36 having adjusting screws 37 by which the pressure may be regulated. The bearings of the rollers, 16, 18, and 19 are adjustable by means of screws 38. The rolls 14, 15, 16, 17, 18 and 19 are all corrugated as indicated in Fig. 6. In order to prevent stretching of the metal during the corrugating of it, I preferably shape the rolls 14:, 15, so that their surfaces are closer together at the centers of the rolls and the pass is slightly widened toward each end as indicated on an exaggerated scale in Fig. 7. This allows the drawing of the metal from the side portions toward the center during the corrugating operation and prevents stretching or pulling of the sheet.

The advantages of my invention result from the mechanical opening of the packs as they are fed forward. Also from the peculiar apparatus for opening in which the pack is corrugated, bent and then flattened; and further from the continuous heating of the packs as they are taken from the shears on their Way to the singlefinishing mill. The amount of hand labor is small, as the metal feeds forwardly preferably in the same line The upper rolls 14 and 20 of the opening up to the shears. The apparatus is adapted for either thin sheets or sheets of heavier gage.

The opening apparatus may be placed on the opposite side of the doubler to that shown, or in any other convenient location, though I- prefer the location described; and such other variations as fall within the scope of the claims may be made in the form and arrangement of the opening apparatus and other parts of the system.

I claim 1. In pack opening apparatus, a pair of corrugating rolls, having their surfaces nearer each other at the center of the rolls than at their end portions to thereby cause the metal to draw from the side portions toward the center, means for feeding the ack therethrough, bending rolls arranged to end the corrugated ack on lines at'an angle to the length of t e corrugations, and means for flattening and straightening the sheets of the pack after they leave the bending rolls;

substantially as described.

2. The herein described method of opening packs, which consists in loosening the sheets of-a pack by tion of the pack in two directions transversely to one another, and then subsequently pressing the sheets flat and separating them.

3. The herein described method of opening 'portion of the bending the same porwhich consists in bending the same pack in two directions at angles to each other to loosen the sheets, and subsequently flattening and straightening the bent pack and separating the sheets.

4. The herein described method of opening packs, which consists in first subjecting the pack to a corrugating action, then bending the corrugated portion of the pack first in one direction and then in the opposite direcpacks,

tion, and finally flattening and straightening the sheets of the pack.

5. The herein described method of opening packs, which consists in subjectin the same portion of a pack to two series 0 bendings, the direction of one series of bendings differing from that of the other, as described.

6. The herein described method of opening packs, which consists in subjecting the same portion of the pack to two series of bendings, the direction and de me of bendin of one series differing fromt e direction and degree of bending of the other series, substantially as described.

In testimony whereof, lhave hereunto set my hand.

CHARLES W. BRAY. Witnesses 2 J OHN MILLER, H. M. CoRWIN.

substantially v

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