US1336198A - Bookbinding - Google Patents

Description

A. COBB.

BOOKBINDING.

APPLICATION men SEPT. Is. 1918.

1,336, 1 9s, Patented Apr. 6, 1920.

UNITED STATES PATENT OFFICE.

ARTHUR COBB, OF CLEVELAND, OHIO, ASSIGNOR F ONE-HALF TO FRANK B. I-IOUGI-ITON,

OF CLEVELAND, OHIO.

IBOOKBIN DING.

Application filed September 16, 1918.

To all whom it may concern:

Be it known that I, ARTHUR COBB, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Bookbinding, of which the following is a full, clear, and exact description.

This invention is a durable, sanitary, easily applied book cover, which is of perhaps greatest practical value for rebinding books whose original covers have become unserviceable for one reason or another; although, obviously, the cover may be applied in the first instance to the coverless, sewedtogether sheets of printed paper constituting the book or insert.

The cover constituting this invent1on is made of sheet metal,-the various parts of which are constructed and combined substantially as shown in the drawings, and hereinafter described and pointed out definitely in the appended claims.

In the drawings, Figure 1 is a side elevation of the book cover, Fig. 2 is an inside view of the back part of one of the cover sides and book insert to which the cover is applied, when the cover is swung open; Fig. 3 is a sectional end view (slightly enlarged) in the plane of line 3-3 of Fig. 1; Fig. l is an enlarged sectional view of the back of the book and cover in the plane of line 4l'lon Fig. 1. Fig. 5 is a similar section in the plane of line 55 of Fig. 1. Fig. 6 is a similar section going about half way through the book in the plane of line 6-6 of Fig. 1, and Fig. 7 is a detached View of one of the hinge lugs.

The cover as shown is made of various parts formed from thin sheet metal which of course may be enameled or otherwise protectingly coated. The cover includes in its entirety a back 10, two sides 20-20, at least four hinge lugs 35, two associated with each side, and two hinge pintle wires 30, one associated with each side.

The back 10 is curved so as to have substantially the shape which the backs of ordinary book covers have. The side edges of the back are bent forward forming side flanges 12 between which the sewed-together back of the paper book or insert B projects when the cover has been applied to said book. Preferably these side flanges are bent Specification of Letters Patent.

Patented Apr. 6, 1920.

Serial No. 254,280.

so that if they were prolonged they would intersect at about the middle of the book. If bent into this position they permit the sides to swing farther back, as shown by dotted lines in Fig. l, than they could be swung if said flanges were only bent into parallel positions.

At suitable points, preferably about one and one half inches from the top and bottom of the back two tongues are formed integral with each flange. Each of these tongues is bent so as to form a hinge barrel 13; and of course the two hinge barrels on the same side must be in alinement. \Vhen the flanges 12 are bent into the angular relation shown, these tongues are preferably bent outward at their line of juncture with the flange, as shown in Fig. l, and are then curved inward to form the hinge barrels substantially as shown.

Each of the cover sides is likewise formed of thin sheet metal. A sunken panel 21 is pressed centrally into the cover side;

and the four edges or flaps 22, 23, 24:, 25, of

each cover are bent inwardly so as to form the double thick marginal edge around said cover panel. The extreme edges of the bent over flaps of each cover side engage the edges of the inwardly pressed panel, and the corners of the flaps are mitered to fit one another, so that the inner surfaces of said flaps lie in substantially the same plane as the inner surface of the panel. A sheet of paper or cloth may be glued to this inner surface thereby concealing the joints, and covering the slot 28 in the rear flap.

In the U-shaped or looped rear edge 25" of each cover side two slots 26 are cut out. Part of the metal cut out to form these slots remains attached at one edge and is bent across the space between the cover side and the turned over margin thereof, and thereby forms an inner wall 27 for said slot. A slot 28 is also cut out of the turned over rear flap of each cover as shown in Fig. 2.

In the chamber or space between the cover side and the rear turned over flap 25 thereof, a movable hinge pintle wire 30 is placed. This is bent into substantially the shape shown so that one end 31 is bent back upon itself toward the opposite end 32 and into alinement therewith. At some point midway between the ends of this pintle wire and at such a point that it is accessible through closed about its hinge axis any movement of the parts to which it is the slot 28 this wire is formed with a kink 33, the purpose of which will be presently explained.

35 represents hinge lugs. There are at least four of these, two associated with each cover, and with each side of the back. Each of these hinge lugs has a prong, preferably in the form of a flat blade 36 which is to be forced through a considerable number of the leaves of the book insert from the outside thereof toward the middle but close to the rear edge of said book insert. Of course, the holes in the-book-to receive these prongs may be formed in the book by some suitable tool. Each of these hinge lugs is formed with a hingebarrel 37.

To assemble these parts the hinge lugs are first attached to the book insert at the proper places and in the 'manner stated. That is to say, the prongs thereof are forced into the book insert near the back edge thereof, and-in such position that the hinge barrels of said lugs can coiperate with the hinge eyes on the back in the manner shown. Then the book with these hinge lugs attached to it is placed in the proper relation to the back, that is to say, the back of the book is inserted between the side flanges 12, Wltlltlle hinge barrels 37 in substantial end contact and in alinem'ent with hinge barrels 13. Then the sides are applied, one by one, by so. placing them as shown withrespectto the back and the book insert that the two pairsof alined hinge barrels 37 and 13 go into and it each of the slots -26 in-the reane'dge of tl e side.

lvhen the parts are lII'tlliSPOSltlOil tool of some sort is passed'through the slot 28, and ,by'engaging with the kink 33 of the 33 and prevent any such movement of the wire as will carry its ends out of the hinge barrel.

This having been done the other side will be applied in the same-manner. Any endwise movement of the hinge barrels with respect to each other or to. the cover sides is preventedby'the ends of the slots 26. Eac

cover may, however, be swung open or without causing hi'nged,and, when the backis formed as s'hownpmay be swung back very far without'imposing any strain-upon itself or the associated parts. The-book may be opened fiat' at "any page thereof, becausethe hinging of-the hinge lugs'to the back and cover perleisure time.

mits the back of the-bookinsert to have substantially the same independent freedom of movement as the backs of books bound in theu'sual way.

As a detail which is of some practical value, attention is called to the fact that the blades 37 of each hinge barrel may be formed with numerous holes 38 through them. It is intended that the holes shall be filled with glue-and that both surfaces of the blade shall be coated with glue before the blades are driven'into the holes in said insert. This will effectively aid in keeping over again withmliflerentbook inserts; and

maybe applied by a library assistant-inhis If the metal be properly enameled the cover can be kept in a clean andsanitary condition.

Having described my invention, I claim 1. A book cover, cemprising,:in combination, a metal-back plate, aset of metal hinge lugs and a cover side,-all ofwhich are hingedonthe same axis to one side' edge of the backplate and are free to swing independently about that axis," another set of metal hinge lugs and another cover si-de,-all of which arehin ged to the same axis to the other sideedge of the back plate and are free'to swing independently about that axis, all ofsaid hinge lugs being formed attheir free ends with means for connecting them to a-book insert'to thereby secure the book insert within the cover.

2. A metal-book cover comprising in combination a metal back having integral hinge barrels at its edges, hinge-lugs each having a prong capable of being inserted in the book to be covered and having also ahinge barrel adaptedto be alined with a hinge barrel-"on the back, and two sides each pivotally connected with hinge barrels of the back and-of-the hinge lugs.

3. The combination of a sewed together paper book, of a metal back having forwardly bent side flanges, hinge lugs having prongs which are inserted into the book from opposite sides thereof and near its back, two sides, and means pivotally con necting said sides, hinge lugs and side flanges of the back.

L A book cover comprising-in combination aback having'turned over flanges on its vertical edges, and hinge barrels'formed integrally with said flanges; hinge: lugs each barrel, and two sides, and a pintle wire associated with each side pivoting it to the hinge barrels of the hinge lugs and the back.

5. A metal book cover comprising in combination a back having forwardly bent side flanges, and hinge barrels which project forward from said flanges, metal hinge lugs each having a prong adapted to be inserted into the book to be bound, and having also a hinge barrel, two cover sides, each having in its back edge a recess fitted to receive two alined hinge barrels, one on the back and one on a hinge lug, and means pivotally connecting the back edge of each cover with the associated hinge barrels of the back and as sociated hinge lugs.

6. A metal book cover comprising in combination a back having forwardly bent side flanges and hinge barrels inte ral with said side flanges, hinge lugs each having a prong adapted to be inserted into the book to be covered, and each having a hinge barrel adapted to be alined with and to be in substantial contact with a hinge barrel on the back, and two metal cover sides each com prising a metal plate, the rear edge of which is folded over on a flap to form a double thick rear margin and a U-shaped rear edge,there being slots in the U-shaped rear edge of said plate each adapted to receive a hinge barrel on a hinge lug and a hinge barrel on the back, and a pintle wire in the space formed between the cover and its folded over rear flap having its ends alined and pointing in the same direction, said wire being movable with respect to the cover so that the two ends thereof may be threaded through the hinge barrels of the back and hinge lug.

7. A metal book cover comprising in combination a back having forwardly bent side flanges and hinge barrels integral with said side flanges, hinge lugs each having a prong adapted to be inserted into the book to be covered, and each having a hinge barrel adapted to be alined with and to be in substantial cont; ct with a hinge barrel on the back, and two metal cover sides each comprising a metal plate, the rear edge of which is folded over as a flap to form a double thick rear margin and a U-shaped rear edge, there being slots in the U-shaped rear edge of said plate each adapted to receive a hinge barrel on a hinge lug and a hinge barrel on the back, and a pintle wire in the space formed between the cover and its folded over rear flap having its ends alined and pointing in the same direction, said wire being movable with respect to the cover so that the two ends thereof may be threaded. through the hinge barrels of the back and hinge lugs,and the folded over rear flap of the cover side having a slot for the insertion of a tool to so move said pintle wire.

8. A metal book cover comprising in combination a back having forwardly bent side flanges and hinge barrels integral with said side flanges, hinge lugs each having a prong adapted to be inserted into the book to be covered, and each having a hinge barrel adapted to be alined with and to be in substantial contact with a hinge barrel on the back, and two metal cover sides each comprising a metal plate, the rear edge of which is folded over on a flap to form a double thick rear margin and a U-shaped rear edge,-there being slots in the U-shaped rear edge of said plate each adapted to receive a hinge barrel on a hinge lug and a hinge barrel on the back, and a pintle wire in the space formed between the cover and its folded over rear flap having its ends alined and pointing in the same direction, said wire being movable with respect to the cover so that the two ends thereof may be threaded through the hinge barrels of the back and hinge lugs,and the folded over rear flap of the cover side having a slot for the insertion of a tool to so move said pintle wire, and means carried by said cover side for engaging said pintle wire to prevent the accidental endwise movement thereof.

9. A metal book cover comprising, in com bination, a back having forwardly bent side flanges and hinge barrels integral with said side flanges, hinge lugs each having a prong adapted to be inserted into the book to be covered and each having a hinge barrel adapted to be alined with and to be in substantial contact with a hinge barrel on the back, and two metal cover sides each formed of a metal plate having a single thick central panel and having flaps on its four sides which are folded inwardly into parallel relation with the side and into contact with the margin of the panel and having fitted mortised corners,-the U-shaped rear edge of said cover plate having slots each adapted to receive the hinge barrel of a hinge ing and a hinge barrel of the back, and pintle wire lying within the U-shaped rear edge of said cover plate and passing through the alined hinge barrels.

In testimony whereof I hereunto aflix my signature.

ARTHUR COBB.

Images