US1757705A - Binder for down-hanging sheets - Google Patents

Description

May 6, 1930. H. DE LISLE v BINDER FOR DOWN-HANGING SHEETS Filed July 16. 1928 V Patented May 6, 1930 PA E r OFFICE HAROLD L. inn IsLE, or. CHICAGO, ILLINOIS B NDERI'QR own-HANG NG SHEETS 7 Application filed July 16,

These improvements relates to binders for down-hanging sheets, for example blue prints and the like. The chief object is to provide a strong, durable and simple device for holding the sheets safely and securely and whereby the sheets may be inserted and removed in an easy and expeditious way, and whereby also they may be protected'against abrasion and other injury. 1 1Q In the accompanying drawings Figure 1 shows my improved holder almost in full face view or slightly in perspective; Fig. 2 shows. the device with the clamping member re moved; Fig. 3 shows part of a supporting rack with the binder on an enlargedscale held thereby; Fig. 4 is a section through the binder complete at the place 4:4 of Fig. 1; and F ig. 5 is a cross-sectional view at the place of the line 55 of Fig. 2 featuring the I spring.

In practice the device is made of sheetmetal. The back 10 has at its top a normally forwardly-and-downwardly directed flange or turned-over part forming a recess or pocket extending from end to end of the back. The bottom edge portion of the back is turned upon itself at 12 for strength and finish.

Two bolts 13 are shown as being per manently held tothe back. To this end a metal strip 14 formed as shown is spot welded to the back at the place of each bolt, the piece 14 having a countersink 14L pressed into it to accommodate the'bolt head and the back has a fin or projection 15 (Fig. 4) pressed into the kerf of the bolt head. .Part of the bolt head is insection in Fig. 4. The bolt may not turn on its axis nor come away from the back.

A trough-like clamping member 16 extends almost from end to end of the back. Its upper edge portion projects beneath the extension 11. Its lower end portion is turned over at 16 for strength and to provide a rounded clamping edge. The bolts project through openings in the member 16 and the knurled and kerfed nuts 17 and 18 hold the member 16 tightly upon thematerial to be clamped.

Figs. 2 and 5 show a medially-arranged 50. substantially U-shaped leaf spring 17. It is 1928. $eria1 No. 293, 069. spot-welded to the back and its free end presses'outward against the clamping mem ber 16. When the nuts are retracted the clamping member automatically releases the material.

The sheets as 18 are inserted so as to come against the bolts acting as stops.

-'The bar 19 may be of wooden dowel material, which is light and of ample strength. It extends from end to end of the device and is retained at its ends by stops 120 partlycut and bentoutward from'the back. Itrests on the bolts.- A protective cover or shield 20, which may be paper or fabric, hangs'upon the rod 19 and encompasses the sheet material 18. Thecover has holes 19" (F ig. 2) at the bolts;

Therack 22 and vertical members 23 in Fig. 2 may be considered to be parts of a sliding support or a permanent support as de sired. The rack shows how many of these holders maybe colsely assembled. The binder issupported by integral ears or longitudinal extensions 2 1 of the back strongly made by folding metal of the back upon itself. The

bottom edgeof these ears 24. is rounded. The

d of e lange 11 go under the folded metal at 24:. 1

I These binders may be of: any desired length, and there may be variations in construction, size, arrangement etc. The crossseotional views are to the scale and size employed by me. On these cross-sections the top' to bottom.

v The operator removes one of the binders from the rack and lays it and the continued sheets upon a table. Retracting the nuts he can insert or remove sheets with little effort back is two and five sixteenths inches from or loss of time. The cover 20' saves much wear 7 and tear of the sheet material.

I contemplate as being included herein all such changes, variations and departures from what is thus specifically illustrated and described as fall within the scope of the appended claims. I claim: 1

1. In. a'binder of the character described normally horizontally disposed'for holding, down-hanging sheets,=the combination of a the clamping member being formed to provide a substantially deep longitudinally-extending space between them for the accommodation of sheets, the lower edge'portion of. the clamping member being opposite the lower edge portions of theiback member, and means forforcing the clamping member toward the back member.

1 2. The combination of claim 1 hereof in which the back member is substantially flat and the clamping member is bowed away from the back member substantially on an are from top edge to bottom edge of the clamping memher and forming a trough-like construction ofthe clamping member in cross View.

3. The combination of claim 1 hereoftogether with a substantially U-shaped leaf spring carried by the back member, extending upward along the back member to above the middle thereof in the up-and-down directions and then downward into engagement with the clamping member for forcing the clamping member away from the back member.

4. The combination of claim l'hereof together with means carried by the device ,for

holding a protective cover adapted to overlie sheet material held by the binder.

5. The combination of claim 1 hereof together with a longitudinally-extending bar between the back member and'the clamping member for holding a cover adapted to protect sheet material held by thebinder.

6. The combination of claim 1. hereof in which the back member has an extension at each end adapted to be engaged by bindersupporting means. V V

V7. The combination of claim 1 hereof in which there are. transverse boltvmeans for forcing the clamping member toward the back member and a longitudinally extending bar resting on the bolt means and between said members for holding sheet-covering material.

8. A binder of the character described normally horizontally disposed for downhanging sheets, comprising a long and narrow substantially flat back member of sheet metal having its lower edge portion turned upward against its body to provide a strong and rigid clamping seat and having its upper edge portion turned downwardly-and-forwardly to provide a retaining extension, a long and narrow clamping member'bowed outward in directions away from theback member and having its upper edge portion loosely under said extension for rocking movements of the clamping member relative I to the back member, the lower edge portion of the clamping member being turned upward to provide a strong clamping edge, bolt means, carried by the back member and extending in a direction toward the clamping member, and nut means assoclated wlth sald bolt means and with the clamping memberfor drawing the clamping member toward the back member.

9; The combinatiolrwith a binder of the characterdescribed comprising a long and other than the V sheet-clamping means for holding the protective cover to the clamping means whereby the sheets may be removed without removing the cover.

I HAROLD L. DE 'LISLE,

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