US 971283 A
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` Patentod Sept 27,1910.
v F. J. KRUEGEB.. TBIPLIQLTE MANIPOLDING BOOK 0B ArrLIoATIoN Hmm 001:1 1
rnEnEnIcn J. ERUEGER, or nEraoIr, MICHIGAN.'
TRIPLIGATE. MANIFOLDING BOOK 0R PAD.
Speelcation of Letters Patent.
Patented sepa a7, 1910.
Application led October 1, 1909. Serial No. 520,479.
To all whom it may concern.' V
Beit known that I, FREDERICK J. KRUEGER,
a citizen of the United States of America,
residing at Detroit, vin the county of Wayne v and State of Michigan, have invented cer tain new and useful mprovements in Triplicate Manif'olding Books orPads, of which the following is a specification, reference beinghad therein to the accompanying drawin s.
I The invention relates to manifolding books or pads particularly designed for use where two copies for each original are required.
It is the object of the invention to facili tate the insertion and holding of the carbon sheet, and also the advancement of the same to a new position in the pad, as more fully hereinafter set forth.
In the present state of the art, triplicate manifolding pads have been formed in which the rear face of each sheet eXcept'the bottom one is carbonized, thereby dispensing with the necessity of the insertion of a separate carbon sheet therebeneath. This construction is, however, objectionable, as
' the carbonized sheet, when removed and in contact with other papers, will soil the same. Another method which has been employed is the binding into the pads a carbon sheet in each group, but this increases the bulk of the pad, and adds to the cost of the same by the large number of carbon sheets required. Still another method is to employ a plurality of carbon sheets that are separately inserted between the different leaves of the group. This requires;` a separate handling of each carbon sheet and furthermore it is difficult to prevent the dropping out of the sheets when the book or' pad is not in use.
With my invention the objections above set forth are all avoided by providing a folded carbon sheet embracing the intermediate copy with the fold in close contact with the edge of the sheet and positioned and retained thereby. This folded carbon .sheet is furthermore provided with carbonized surfaces, which face in the same direction-or, in other Words, the sheet before folding has its two portions carbonized upon reverse sides. Thus, after folding, one of the carbonized faces lies adjacent to the leaf embraced by the folded sheet and the other surfac' is in contact with the next lower leaf.
In the drawings-Figure 1 vis a perspective view of a b ook or pad constructed in accordance with my invention; Fi 2 is a perspective view of the carbon s eet detached; Fig. 3 is a cross section through the pad; Fig. 4 is a plan of the carbonsheet before foldin A is a boolv or pad having its leaves arranged in grou s of three.
B is the car on sheet, which is formed from a blank slightly greater than twice the size of the leaves and having carbonized `faces C and D upon opposite sides of the ortions lying on either side of a central ine E. The sheet thus formed is folded along the line E, which will cause the surfaces C and D to face inthe same direction. The folded sheet is then inserted in the book so as to embrace the intermediate leaf, with the fold adjacent to one edge thereof, and the construction is such that the upper portion of the carbon sheet h s a marginal portion F projecting beyond the opposite edge of the leaf. Thus the user may readily disengage the carbon sheet by gras ing this marglnal portion and without anger of clamping the intermediate sheet in tearing the same. l
In use, the carbon sheet is first engaged with the intermediate leaf of the rst roup, in which position it will be retained gy the engagement of the fold with the ed e of the sheet, and by the clamping effect o the opposite portions upon said sheet. Thus there 1s little danger of accidental disengagement and loss of the carbon sheet. After the filling out of the original, the user throws out the carbon sheet and places it in engagement with the intermediate leaf of the next group, after which the filled-out copy may be drawn from the pad.
What I claim as my invention is:
l. The combination with a book or pad, of an unbound folded carbon sheet adapted to embrace a leaf with the fold adjacent to the edge thereof, and a marginal portion pro'ecting beyond the opposite edge of the lea the two portions of said carbon sheet having their carbonized surfaces facing in the same direction.
2. A manifoldin book or pad comprising a plurality of le one edge and having their remaining edges free, and an unbound carbon sheet folded to embrace a leaf intermediate two other leaves, and having portions upon opposite sides of the embraced leaf provided with aves bound together at brace a leaf intermediate two other leaves and having ortions upon op osite sides o the embrac leaf provided with carbonizedsurface facing downward, whereb a co y is formed upon the embraced lea and te leaf beneath the same. f
4. A' manifolding book or pad, comprisin a plurality of leaves arranged in series o three and bound together at one edge, the remaining ed es of said leaves being free,
` and a remova 1e carbon sheet folded to form parallel leaves adapted to be positioned upon .opposite sides of the intermediate leaf of the series, said parallel leaves being carbonized on one side only and facin in the same direction, and one of said car on leaves ha a marginal .portion projecting beyond e other, and beyond the corres onding marginal portion of theleaves of t e book.
A5. The combination with a book, or pad,
comprising a plurality of leaves of substantially the same size bound together 'at one edge and having their remainin edges free, offa folded carbon. sheet adapte to embrace one of the leaves of the pad and havin portions upon opposite sides of said lea with carbonized surfaces facin in the same direction whereby a co yeisrormed on the emleaves of the pad and the other ortion of the carbon sheet being of slight y greater width than the leaves. g
6. 'llhe combination withJ a book or ad, comprising a plurality of leaves bonn tos eet folded to embrace the leaf intermediate two otherleaves, andhaving portions upon opposite sides of the embraced leaf provided with carbonized surfaces facing downward whereby a cop is formed on the embraced leaf and the lea beneath the same, the portion of the carbon sheet above the embraced leaf havin an edge projecting be- ,yond the correspon in e ge of the other portion of the carbon s eet and beyond the ed e of the leaves of the pad. n testimony whereof I atlix mysignature in presence of two witnesses.
FREDERICK J. KRUEGER. Witnesses:
Neun: KINBELLA, W. J.- BELKNAP.
braced leaf and a so the leaf beneath the -same, one of the portions of the carbon sheet being of substantially the same size as the' ether at one edge, of an unbound carbon