|Publication number||US1757122 A|
|Publication date||May 6, 1930|
|Filing date||Jan 20, 1927|
|Priority date||Jan 20, 1927|
|Publication number||US 1757122 A, US 1757122A, US-A-1757122, US1757122 A, US1757122A|
|Inventors||David E Hunter|
|Original Assignee||Shaw Walker Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (20), Classifications (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
May 6, 1930. D. E. HUNTER GUIDE CARD FOR INDEX SYSTEMS Filed Jan. 20, 192'7 Patented May 6, 1 93G UNITED STATES DAVIDE. HUNTER, onMusKEGoN, Micmqiin PANY, F MUSKEGON, MICHIGAN, A CORPORATIONDF? MIG GUIDE cam) non 1-" .Application filed January 20, I
these tabs with transparent and durable material, such as celluloid, for the purpose of 10 protecting the tabsa-gainst wear and soiling in handling, as well as providing a moisture-proof covering which maybe readily,
cleaned without obliterating the index marking on the tab. These cards are usually cut from heavy card or press board with integral tabs, the latter being covered with a sheet of celluloid folded around the outer edge and glued to opposite faces of the adjacent. portion of he card,'the ends or flank edgesof the celluloid being cut or trimmed flushwith the corresponding edges of the tab. v
This method, however, has not been found wholly satisfactory for the reason that "the ends of the celluloid covering are left open and the end edges of the tabs exposed, sothat in time these edges open,,due to the tendency of the paper to swell from-the moisture and the natural drawing or pulling away of the celluloid which causes the paper to split. The result therefore, is that thetabs become rough and frayed, aside from a partingof the edges Various means have been devised for overcoming this defect, but allsuch devicesknown; to me contain such structural defects'that they do not fully accomplishthe object for which they were intended.
The'purpose, therefore, of the present invention is to provide an lnexpensive and practical construction for a transparent tab sheath, which will fully protect the edgesof the tab throughout, as well as the edges of cased in the sheath.
irIGAN t V elevation-.2:
ruF-i uite? 3 iss a view:
iewl of-the same card in end blank-from which the sheathmaybeformed, I
s: Eigure liisaperspective view of the sheath, U
afteiqitwhassbeen; formedfrom the blank; and
1' 1 Eigure 5 is anenla'rged detailview infcr oss section taken 011:1156 5+5 :of Figure 1. beAsshownimFigure 1, the guide card'A is a' rectangular sheet of relatively heavy and sub 'stantial n1aterlial=,:-.such as pressboard; having at its upper edge aprojectingtab B, bn whi'ch appears :1 the desired :indeX marking G ,i-in heavy type. The tab is cut with itsrouter edgelih istraiight'landi paralleled with the top edge of the card, and at itsends the corners are rounded and the edges slightly divergent to merge with the edge of the card proper in a curved shoulder or fillet, as at b The sheath D for the tab B consists of two I integral walls d0l. It may be of a transparent moisture-proof material such as celluloid, spaced apart the thicknessof the guide card and joined together along the top edge d in arou'nded or bead-like joint, said top edge conforming to the contour of the corresponding top edge of the tab B. The sheath is slightlylonger than the tab", so as to include portions of the card edge on either side of the tab and is likewise somewhat wider, to prov vvide base portionsd which extend downof the celluloid at the ends of the tabs *the s'urfacesof the card beneath the tab.
- The sheath is applied to the tab in the obvious manner, that is, by means of adhesive so that it fits securely over the tab and becomes an integral part of the guide card.
- The sheath as thus described may be made in -any suitable manner, the most obvious being that of drawinga blank of celluloid D (Figure 3) of the length of the finished article, into the sheath form, by means of suitably constructeddies, and then trimming the edges of the base portions to the desired conformation.
By the use of such a sheath, it is apparent that the entire edge of the tab is enclosed and sealed with a smooth rounded edge which will be soft to the touch in fingering the tabs, and
' and having the material along its foldededge I i V drawn backwardly' from said edge to provide of the card;
will completely protect and seal the edges against the entrance of moisture.
I claim as my invention: 1. A sheath for the taband adjacent edge portion of a guide cardconsisting of a piece of ductile'transparent materialfolded double to fit over a straight edge portion of the card,
activity conforming tothe shape-of the tab and the adjacent portions of the card.
2. A sheath for the tab and adjacent'mar-, ginal portions of a guide card consisting of a rectangular piece of celluloid folded double V and having a portion of ltSEfOldQd edge portion drawn back from its original position to conform to dimensions and edge contourof the tab and the adjacent portions of the edge- L 3. .Asheath for the tab and marginal portions of guide card, com
sist-ing of rectangular piece of ,celluloid folded double along a medial line, and having a portion intermediate the-ends of its folded' edge drawnbackwardly from said-medial line to form-a cavity conforming to the dimensions and contour of said tah.'
Signed at Muskegon, Mich, this 11th day of October, 1926.
i v DAVID E. HUNTER.
and 7 adjacent edge
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