US 1826614 A
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Description (OCR text may contain errors)
ou. s, 193,1.
L. S. GRAFF ET AL I NDEX TAB Fled June llv. 1931 i? mw e' SEm'w/NVENTORS A TTORN EY Patnted ocr. 6, 1931Y LELAND sQcaArr, OFQARLINGTON, AND RoBEn'rAsrnwAnT, OFWATERTOWN, MASSA- CI-ISETTS, ASSIGNORS TOy GEORGE B. GRAFF:
COMPANY, v0F CAMBRIDGE, MASSACHU- seras, A CORPORATION or nAs'sAcHUsE'rtrs Y INDEX 'TAB ,y
.Y I Application le'd' .Tune 11,
Gur invention relates to an improved in- -V dex tab, and among its objects are the provision Yof a durable, simple and inexpensive tab which may readily be attached to a card, sheet, etc., will hold its position firmly and et is readil removableand transferable is easy and positive in operation and may be used repeatedly. f f
Metal lndex tabs .as now manufactured are k3Q commonly made of two strip portions of met- D materiah such as Celluloid, is centrally foldalso that both the bottom or clip portion and the top orindex portion are of` metal. An aperature may be providedy in the index portion7 through which indicating characters n on an inserted strip are visible. The'k clip portion of such tabs starts with a shoulder just below the index portion whereby the clipping strips are separated to permitthe insertion of the card or sheet to which` the tab is attached.
index portion of the tab may be constructed entirely of an inexpensive material and may be made transparent, thereby completely enclosing an appropriate insert strip bearing indicating characters which may bereadily inserted or changed as desired; With these and other objects and advantages in mind,
' our index tabl comprises, briefly, an upper "'in'dex portionformed by vcentrally folding a strip of celluloidor other transparent materialupon itself, with a kclip portion of metal or other'suitable material secured 'to the in- Y dex portion by means offrivets orother fastening means. lTf the two legs, of the folded strip do not give' a sufficient thickness to adequately separate the clipping strips, yone or more strips ofcelluloid or other suit- .'able material may be interposed between the edges of the folded strip, thereby making any or other springy material for the clipping strips. `With our new construction the upper cardi or sheet. f
i931'. senti No. 543,570.
desired width of separation between the upper endsv of the clipping strips. l 1A preferred formof our improved clip is shown in Athe accompanying drawings, in
which Fig. 1 is a perspective view of our clip attached to a card, f
Fig. 24 is a transverse vertical sectional -viewtaken on the line 2 2 of Fig. 1.
A strip or sheet of' suitable transparent o0 ed upon itself as shown at 4 to form the upper or'index portion of the tab. The transparent sides 5 and 6 of this portion may be spaced apart by the insertion between the lower ends thereof of'a narrow strip 7 This strip may A"conveniently-be of the same material as the sheet' 3, but since the lower portion -of lthe tabv is not necessarily transparent, it may be of any suitable material. This construction leaves the slot 8, into which a strip 9 of paper,V carboard,` etc., bearing indicating characters, may readily be slidably inserted so that kthe'characters are visible through the transparent face 5. Notches may be cut 75 linthe sides 5 and 6 as indicated at 10, to facilitate'the insertion and removal of the strip 9. The bottom or clip portion of the tab consists of'two plain strips'll and 12 which are preferably'of thin sheet metal, but which may vbe of any suitable springy material. These strips ,are attached one on either side of the ilower-partof the index portion of the tab in the manner shown in detail in Fig. 2,` by means'ofrivets 13 or other suitable fastening` means; The strips 11 and12 arethus spaced apart and secnrelyheld in parallel relationgship, leaving between `them the vspace 14 for the reception of the edge of the card or sheet to which the tab isto be attached. The lower ends of the strips 11 and 12 are turned inwardly toward each other as shown at 15 and 16:,to such an extent that when the clip is knot inuse the lowermost edges will normallytouch each other. `When the tabis slipped over theedge ofa card or sheet, these loweredges ofther strips 1l and 12 serve to grip the card rmly andhold the tab securely7 and adjustably in place on the edge of the `Our tab, while leaving the indicating; '1 fcharacters on'. thejstrip V9` readily visible,
' protectsV thisV indicating strip andthe char-r actors thereon froin soiling and wear, `and furnishesconvenient,l uri-gid, andvv durable means for handling the card or Sheet to which` Y j L" the tab may be attached.V A new stripfQ bear-4v .ing different indicating .charactersy may read- ?.ilyibe substituted. The tab'is Y firrnly andV 1 I t YYrigidly'held in plaeeand yetfisV readily'ad'-` 7 justable and'rernovable,.and may be attached and detachedanynuniber of times withoutv f.
the slightest impairment of.itsfeficienoy"4 `v The leg orjclip portions'of our, device. are ofthe simplest-'charaot'en whioh'rnakes for flowoost of manufacture and the-character Y ofv our index portionpermits tlie'lls'exofanv finexpensive, transparent'indexgstripenclosfA inginaterial, which actsfalso as a stop `to insure uniform projection ofthe tab abovethe i' edge of theoardor sheetvr to whichl it` is at' tached and as a separator for'vthe leger Y,clip
- portions ofthe device. The simplicity of'conportionoonsisting of a sheetoftransparent 4 v fmaterial 4centrally folded uponul itself and with itsends spaced apart-by-a narrow strip inserted therebetween, and alowerclip porf Astructiwin and the inexpensive materials used Y permit the manufacture of your tab at alow cost, Yand at.y the same time our construction fprovides ,distinct advantages manipulation .and use. We claimtf r; v Y
l. AnindexY-tab `comprising an upper lindex tion consistingr of two fpara'llel'flat sheets: of
:springy' linatezrialwith their lower edges f; turned: toward each 1 otherf and their .l upper indexportion Acorisistifngfof .a-sheet of' trans= parent'mate'rial eentrally'folded uponitself f edgesfspaoed apart by: the,insertionztherebe# Y tween Yof the l'owenpart of the index portion, .e the1 whole being held Vtogether by fastening Y means *throughy thepa-rts thus overlapping.
andwith its ends fspaced apart by a-narrow "stripf inserted; t-h erebetween,y and a lower or clip portionoonsisting of two` metal sheets V.in parallelirel'ationshipwith'their'lowerrnost Y edges turned towardeach other,the two por-V Vtions partly overlapping and thewhole being held together by rivets passing through the l overlapping portions.y
. .e LELAN'D-s, GRAFF; Y.