US1858430A - Picking crate - Google Patents

Description

May 17, 1932. w. J. BRADDOCK ET AL 1,853,430

' PICKLING CRATE Filed March 2a, 1930 5 Sheets-Sheet 1 INVENTOR fi/uw/ari 6444M Mm y i w. J. BRADDOCK ET AL 7 1,858,430

IIIIIIIIIII TE Filed March 26, 1930 5 Sheets-Sheet 3 i l l I I I I NNNNNN OR Patented May 17, 1932 UNITED STATES- PATENT o r'Fl-ca WILLIAM J. IBRADDOGK AND CHARLES- w; HALLER, or WHEELING, wnszrvmemra,

assrenons ro 'WHEELINGBR'ONZE CASTING COMPANY, A CORPORATION or wnsr,

the patent to Charles VIRGINH.

PICKLING CRATE Application'filedMarch-26, 19302 Serial No. 439,032.

This invention relates to a picklingcrate for metallic sheets, and constitutes an improvementv on the picklingcrate disclosed in I-Ialler No.

5 1,711,054, issued April. 30, 1929;

One object ofi the. invention is to provide a crate structure of the type shown. in the above mentioned patent in which the use of screw threads for maintaining the parts in rigid engagement is e'llmlnated.

Another object ofthe invention is to provide mutual attaching. means which maintain the end and: partition grids of the crate.

iii-rigidly connected" spaced relation, and attach the same. tothe. base and to the upright members serving: as lifting bars,. in such manner that the. attaching. means may be made to-compensate for. any tendency of the parts to work loose duringcontinueduse of the crate.

Another. object of the invention is to provide means for attaching a. spreader to the upright members constituting lifting bars of'the'cra-te in such manner that it is firmly engaged thereto by means of a connection which presents no aperturesrfor the entrance of pickling fluid, and which'is of sufficientv strengthand rigidity to withstand theaction of a pickling. machine from which the crate may be suspended;

A further object. of the invention is to provide a pickling crate having side and partition' grids of the general arrangement of. those disclosed-in the above mentioned patent', in which the cross sectional contour of the bars or legs constituting the. grid body issuch as to present to a sheet lying against.

the grid a surface which is relatively extended, thus avoiding injury to thev sheet such. as might be caused-by a tendency, for the sheet to flex against a relatively narrow contact line such as is presented by abar of circular cross section.

-- In the accompanying drawings Fig. I is a side elevation of the pickling crate; Fig. II

member of the pickling crate; Fig. IV is a detail sectional view taken on the line VIII-VIII of Fig. VI; and F ig. IX is a sectional view taken on the line IX-JX of VII.

he base 1 of the pickling cratecomprises longitudinally extending bar members 2 and transversely extending bar members 3., the. entire structure beingi-ntegrally cast. As in the structure shown in the above noted patent to-Charles W. Haller, the outermost longitudinal members or sills of the base. are provided with apertures 4-for receiving the. lifting bars 51 Lifting bars 5 are Ushaped members, each having a horizontally extend ing' intermediate portion 5a, andt vertically extending legs 56.

It. should be understood that all themembers ofthe pickling crate are madeof a cop-. per alloy which is-higlily resistant to corrosion by the acid of apickling bath. Thin edges andcorners of evensuch an alloy,

however, are attacked in time by the corrosive actionof a pickling bath. Screw threads and the like are therefore to be avoidedin.

the construction of a pickling crate.

While the lifting bar attachment, as shown.

in the above noted patent, does not require the use of screw threaded .members, such asbolts and nuts, for securing the lifting bars to the base,,it is further desirable thatthe Upon the loosening of parts caused. bythe.

destruction of the screw threads, it is neces saryto make repairs to the crate. We, therefore, provide novel means for attaching. the

partition grids of the sheet pickling crateinv mutually spaced relation on the base. 1.

Both the outer or side grids 6, and the intermediate, 'or partition grids 7,, of the crate correspond generally to the grids disclosed in the above noted patent, inasmuch as they comprisemembers orl'egs which iniii-3 tersect to provide a reticulated structure, supporting a sheet both horizontally and vertically, While permitting free passage of the pickling fluid through the partition. In order that these grids may not present narrow contact lines to sheetslying thereagainst, and may present no points or corners which might nick or otherwise mar the sheets, we make the bars or legs 60 of the side grids, and the legs 7 a of the intermediate grids,1.0f generalr'elliptical contour in section. major axis of the ellipse lying in the plane of extent of the grid, presents a relatively extended surface area to the sheets, while avoiding the sharp edges which would be present if bars or lugs of rectangular cross sectional contour were employed. It will be noted that each of the grids constitutes .a self contained and integrally cast structure, having no threaded connections or other joints into which the pickling bath may enter.

The grids 6 and 7 are mounted on the base by means of longitudinally extending rods 8, Whichpassthrough aligned apertures 9 in brackets 10 of the side grids 6 and brackets 11 of the intermediate grids 7. The upper rods 8 also pass through matching apertures in the vertically extending legs 5?) of the lifting bars 5. Lower rods '12 pass through apertures 13 in lugs 14 at the lower portion of the grids 6 and 7, and pass through matching apertures in the side bars or sills 2 of the base 1. Surrounding each of the rods 8 and 12 are a plurality of rela tively short spacing sleeves 15, which lie between the grids, and serve to maintain them in properly spaced position, to form a plurallty of sheet receiving compartments in the crate.

Each of the rods 8 is terminally so formed that it may not be retracted through the lifting bars 5?) when it has beenpassed through the apertures therein. As shown, the terminal deformation to prevent retraction is effected by peening over the extending end of the rod 8 to form a clinching portion 16.

This method of attachment in itself does not, however, serve to initially tighten the connection between the outermost grids 6 and the lifting bars, nor between the grids 6 and 7 and their spacing sleeves 15'. It also does not in itself provide means for tightening during use of the crate, if these parts should bars, the connection may be tightened both between the outer grid 6 and the lifting bars, and between all of the grids and their spacing sleeves, by introducing a wedge or wedges. into each of the sockets 17 and bearing against The. r

the adjacent spacing sleeve. The wedging means may either be a relatively wide ledge forked to straddle the rod 8, or may be two narrow wedges inserted one on each side of the rod 8.

Similarly the wedgeor wedges may be introduced horizontally instead of vertically as shown, if the flanges 170., which form the socket'17 be arranged horizontally instead of vertically. i J

It will be readily understood thattherelatively massive structure of the wedgesis not attacked to a material extent by the relatively slow action of the pickling bath on the copper'alloy ofwhich they are formed. Also the wedges may be driven in further if the the grid structure becomes lo'osenedby slight corrosion at the ends of the spacing sleeves, and the jarring incident to the useof the sheet pickling crate with a pickling machine.

The arrangement in connection with the lower rods 12, which attach the grids 6 and 7 to the'bas'e 1, is generally similar; Both ends of the rods 12 projecting through apertures in the side bars or sills 20f the base, are also deformed to provide clinching portions 18 lying against the outer face of the sills 2. In this connection, however, the sills are provided with vertical slots 19 intersect ing the notches 20in' which the rods 12 lie. If then a forked Wedge V, or two narrow wedges, be inserted to act onboth sides of the rod 12 it serves totighten the clinched connection between the grid and the sills 2 ofth'e base.

Adjacent the upper ends of the lifting bars aspreader 21 is desirably attached to provide a. reinforcing structure for connection of the crate as a whole to a pickling ma-' chine. The connection betw'een'the spreader and the lifting barsis also rigid -andof suchform' that it may not be readily attacked by the pickling bath. At each corner of the spreader'is a seating notch 22ffor receiving a lifting bar leg, and lugs 23 turned toward'each other'to provide an opening for the seat of a width less than'that of the lift ingbar leg. Extending downwardly from the body of the spreader is a teat 24 disposed adjacent the notch 22, and having a face against which the leg of the lifting bar may lie. I

hIn attachingthe spreader to the lifting members,the lifting bar legs 56 pass through each of the seat apertures, and the lugs are then bentover above the regions in which the spreader and the lifting bars are in contact. If desired, the lugs 23 may be peened over to "clinch the lifting bar legs. I a

In order to provide a rigid connection and one'w'hich is impervious to liquids, a retaining block 25 is then cast around the region of contact of each of the lifting bars with the spreader.. This may be done bycastinga copper alloy into a suitable mold positioned in the region of the jointj When so cast, the

retaining block shrinks to bind the lifting bar leg and the spreader firmly together, the teat 24 assisting to anchor the block 25 in position.

Vhat we claim is:

1. In a sheet pickling crate the combination of a base, a lifting bar extending upwardly from the base, a grid disposed adjacent the lifting bar, clinching means arranged to engage the grid to the lifting bar and to the base, and wedging means arranged to tighten the clinched engagement of the grid.

2. In a sheet pickling crate the combination of a base, a lifting bar extending upwardly from the base, a grid disposed adj acent the lifting bar, a rod passing through matching openings in the grid and lifting bar and terminally shaped to prevent retraction thereof, a spacing sleeve surrounding said rod, and wedging means arranged to act on said grid for maintaining said grid lifting bar and spacing sleeve in firm mutual engagement.

3. In a sheet pickling crate the combination of a base, a grid extending upwardly from the base, a rod passing through matching apertures in the grid and in the base and terminally formed to prevent retraction thereof, a. spacing sleeve surrounding said rod, and wedging means arranged to act on said grid for maintaining said grid base and spacing sleeve in firm mutual engagement.

4. In a sheet pickling crate the combination of a base, spaced upright members attached to the base, a pair of upwardly extending spaced grids disposed adjacent said upright members, spacing means interposed between said grids, clinching means arranged to engage the grids to the uprights, and wedging means arranged to act on said grids to maintain the grids, uprights and spacing means in firm mutual engagement.

5. In a sheet pickling crate the combination of a base, spaced upright members attached to the base, a pair of upwardly extending spaced grids disposed adjacent said upright members, spacing means interposed between said grids, clinching means arranged to engage the grids to the uprights and to the base, and wedging means arranged to act on said grids to maintain the grids, uprights and spacing means in firm mutual engagement and to maintain the grids, base and spacing means in firm mutual engagement.

6. In a pickling crate the combination of a base, a plurality of mutually spaced grids extending upwardly from the base, spaced upright members attached to said base, a rod passing through said grids and said uprights and terminally formed to prevent retraction thereof, a rod passing through the grids and an aperture in the base and terminally formed to prevent retraction thereof, spacing members interposed between the grids and carried by said rods, and wedging means associated with at least one grid to maintain the members in firm mutual engagement.

.7. In a sheet pickling crate the combination of a base, upright members secured to said base, a spreader arranged to lie horizontally between said upright members and having therein seats for receiving said upright members, and retaining blocks cast and shrunk to the spreader and upright members in the regions of their mutual contact providing a jointless casing wholly covering the regions of mutual contact between the spreader and the uprights.

8. In a sheet pickling crate the combination of a base, upright members secured to said base, a spreader arranged to lie horizontally between said upright members and having therein seats for receiving said upright members, teats extending from the body of said spreader adjacent said seats, and retaining blocks cast and shrunk to the spreader upright members and teats in the regions of mutual contact of the upright members and the spreader providing a jointless casing Wholly covering the regions of mutual contact between the spreader and the uprights.

In testimony whereof we have hereunto set our hands.

IVILLIAM J. BRADDO'CK. CHARLES W. HALLER.

Images