US1556721A

US1556721A - Book cover

Info

Publication number: US1556721A
Application number: US26371A
Authority: US
Inventors: Schade John
Original assignee: National Blank Book Co Inc
Current assignee: Avery Dennison Office Products Co
Priority date: 1925-04-28
Filing date: 1925-04-28
Publication date: 1925-10-13
Anticipated expiration: 1942-10-13

Description

Oct. 13, 1925. 1,556,721

J. SCHADE BOOK COVER Filed April 28. 1925 35.1. EELS.

Jf/orney Patented Oct. 13, 1925.

mis ma,

J0EE SCHADE, or otYox'E, MASSACHUSETTS, ASSIGNOR To 'NATro-NAL BLA K 5300:: COMPANY, or HOLYOKE, imSSAoH sETTs, A voL NTAm; RU T Assoc'mTro-u or 'cor nTn nSmnnAvme-as TRUSTEES owN s. Town M. T'OWNE,

' Am) 'F. w. WILSON;

, BOOK covEn,

" Application filed April 28, 1925. Serial No; 26,871.

To all whom/zit may concern.- Be it known that I,'JoHN Sermon, a c1t1- zen of the United States, residing at the city of Holyoke, inthe county of Hampden and State of vMassachusetts, have invented certain new and useful Improvements in make and usethe same.

Book Covers; and I dod'eclare the following to' be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to v This invention relates to loose leaf binders, but more particularly has reference to, the securing of the loose leaf holding structure to-the bookcoven. 1

.The object of .the invention {is .to secure said structure to the cover insuch a manner as to do .away with stitching, the employment of adhesive substance, theperforation of the cover, lor. the formation of closed pockets in the back of the cover.

The description and claims which form a part of this application are to be considered in connection with the accompanying drawing, which illustrates the manner in which the invention is preferably utilized, and in which i Figure 1 is a broken perspective view of a book cover, as it appears after the first step has been taken in carrying out the invention 1 Figure 2 is a similar view, showing the appearance of the cover after the second operation- Figure 3 is also a similar view, illustrating the cover as it appears after the third step has been taken- Figure 4 is likewise a similar view, showing the completed cover as it appears after the last step in its construction has been taken, preparatory to securing the cover to the leaf holding structure- Figure 5 is a detail perspective View of the metal sheath Figure 6 is a cross section showing a loose leaf book equipped with this invention, and

Figures 7 and 8 are cross sections of the constructions shown respectively at Figures 2 and 4.

Similar numerals of reference denote like parts in the several figures of the drawing.

The book covers to which this invention relates are made of leather or any other suitable materialj adaptedfor, the carrying out of such invention. Y

Referring to'the drawings, 1 represents the back of the cover, and 2 the side covers, channels '3 being out throughout the length ofthe cover between the back and side covers for two, reasons, first, in order. that the side covers may be readily closed and opened, and second, in order to formatthe inside of the back a raised ridgeor Strip 4 extending the full length of. the back sothat the par tially formedbook cover-may have-the appearance shown at Figure 1. I

, S'lits 5 are then made within the opposite side edges of this ridge 4: which SlitseX-tend vlengthwise of said ridgeiandparallel with the face thereof and are of I 6 is a'metal sheath of a' length substantially that of the slits, 5 and havingsits side edges bent downwardly and inwardly to form flanged portions 7, while from the face of this sheath spurs 8 are lanced which project upwardly.

This sheath is assembled on top of the ridge 4 with the flanged portions 7 extending within the slits 5, as shown at Figure 3, and the said sheath and flanges, and that part of the ridge contained between them, are then bent upwardly throughout their length, which operation of bending will clamp said part of the ridge firmly between the sheath and flanges, and will also give the entire structure sobent an arcuate shape in cross section, so that it will be readily adapted to the bottom plate of the leaf holding structure, as willnow be described.

It is not deemed necessary herein to enter intov any detailed description of the construction and function of the bottom plate of a loose leaf structure, and therefore said any suitable plate and the remaining parts of such structhe use of a bottom plate.

The bottom plate of the loose leaf structure that is shown herein is designated by the numeral 9 and this plate is placed'on top of the metal sheath 6, curved in the The plate at its upper edges has the usual inwardly turned extending parts IO Which house the outer edges of the usual hock plates 11 which latter carry the circular abutting leaf holding members 12.

lNhile the slits 5 are not shown extending through the ends o f-theridge nevertheless they may be extended through one or both of the ridge ends, this being a matter of mere detail. In some instances these slits Would extend through one or both ends of the ridge and the metal sheath Would-then he slid into position, and the bending Wardly of the sheath would cause the side edges of the ridge to; be tightly clamped so that the sheath would not become acciden'tly displaced, or the ridge" may be stitched across the end'sl- But, as above stated, these are matters of mere detail and have nothing Whatever to do with the actual invention.

What is claimed is:-"

1 A book cover for a loose leaf structure, comprising a. single piece of material having longitudinal channels extending throughout the length of the book between the back portion and the cover portions whereby a ridge is formed constituting the inner face of the back portion, said ridge having slits formed in its 1 opposite side edges-, and a metal sheath upon the face of this ridgean'd havinginturned flanges; extending Within said slits and provided with means for attachment to a looseieaf structure.-

2. A construction as in claim 1, in which the metal sheath and the side edges of the ridge embraced by said sheath are bent upwardly so as to be arcuate in cross sect-ion.

3; The hereindescribed book cover, coinprising integral back and cover portions having therebetweren longitudinal: channels whereby the thickness of the cover is reduced along the inner extremities ot'the side covers and the inner face oi the hack portion formed into a ridge-"like structure, the latter having its side edges siit parallel with the'face of the ridge, and a metal sheath equipped for attachment tea loose leaf structure and having downwardly and inwardly extendingflange-portions that are housed Within said slits, said sheath with its flanges being curved upwvandiy in cross tare hereto.

JOHN