US1931244A - Machine for binding books - Google Patents

Description

Oct. 17, 1933. H, c ALGER r AL MACHINE FOR BINDING BOOKS Filed May 9, 1931 2 SbsetsSheet l Oct. 17, 1933.

H. c. ALGER ET AL 1,931,244 MACHINE FOR BINDING BOOKS- Filed May 9, 1931 2 Sheets-Sheet 2 Patented Oct. 17, 1933.

UNITED STATES ATE T F ICE 6 Claims. (o1. 91-55) i 'j This invention relates particularly to'an improved machine for gluing books whereby a firmer bond is obtaine'dbetween the glue and the pages of the books, and is adaptedto be used with a bookbinding and covering machine of the type shown in the patent to Bredenberg N0. 1,248,252, granted November 27, 1917. I

Heretofore, in applying glue to the freshly cut back of the book, great care has been exercised to have theglue of the proper consistency and at the 'right temperature to insure a proper union between the glue and the back of thebook, and later-in the operation, between the glue and the cover; It is difficult in practice to get a glue of a consistency to perform properly both of these functions. A glue of the right consistency to ente'r the spaces between the edges of the sheets is much too thin to hold the cover.

If it isof. aproper consistency to hold the cover, it is much too heavy to afford a firm bond between the leaves of the book.

. An object r of this invention is to overcome this'difllculty and to providea machine for applying glue which will be of the proper consist-,

ency for both operations.

This and other objects, aswill hereinafter appear, are accomplished by this invention 'which' is fully described in the following specification, and shown in the accompanying drawings, in which-#- Figure 1 is a top plan" view of a machine embodying the invention;

Fig.2 is a partialenlargedfside elevation of i :the same .Figs. .3;'4,.andi 5 are partial enlarged sections of the patentedrmachine which are'not altered counter-clockwise direction, As'the rollers 23 -The machine comprises aframe having,up-

are shown sketchily or are omitted altogether.

per and lower, tracks or guides 10 (Figs. 1, Fl) supported on suitable legs as:11,- 12 carried on a base, 13.. Between the upper and lower guides 10 runthe links 1401 a continuouschain which serves to carry the book to be bound throughthe machine, and which is propelledby means ofla sprocket 15. Broadly, the' invention'conlsists in cutting the backs of the books which are previously gathered or assembled from a series of signatures.- ,Thiscutting operation severs and separates all'of the sheets so that they are now held in the form of a tablet and require that this cut edge be glued after which a super and cover areapplied thereto. The present invention relates, primarily, to an improved machine for performing this gluing operation.

Speaking generally, the book A gripped by the chain while being carried forward is trimmed on the back by means of a suitable cutter,' such as the band saw B; after which it passes to the first glue pot C. The trimmed back istgivena coat of thin glue which, as will later be described, is.worked into the leaves at the back of the book. The book then passes through a chilling device D where the thin glue from the glue pot C will be chilled, and thereby considerably ond coating of thicker glue as it passes over the glue pot E, after which a super is applied by a ready to receive another book to be bound;

, The carrier chain of the machine comprises I a series of links 14 hingedly connected. together by means of pins 16, on the upper'and lower ends of 'which are mounted rollers 1'7, lawhich pass between the upper and lower channel shaped guides 10. These links 14 are provided H with longitudinally spaced and. laterally oflset openings through which pass guide pins'19- which are attached to opposite ends of clamping plates 20. These plates arelnormallydrawn toward the links 14 "by means-of springs 21 on the inner ends of the guide pins 19,; these springs thickened, after which the-book is given a'secfacting upon a cross bar 22 which is attached at its two ends to the two pins 19. This crossbar carries near its center, a roller 23 which is pivthe oppositeend of the cam; The sprocket 15- is n'o mounted upon a shaft 25 which" is "journaled "in otally mounted, and which serves, when pressed i 10;

suitable bearings carried by the main frame, and has keyed thereon a bevel gear 26 which is meshed with a driving pinion 27 on a shaft 28,

36 at the rear end of the glue: pot C by means of suitable sprockets and a chain 37 which runs thereover. The shaft has a bevel pinion 38 keyed thereon which meshes with bevel gears 39, 40, these gears being keyed on shafts 41, 42 respectively which are suitably journaled in the glue pot C.

.These shafts carry spiral gears 43, 44 which lie immediately beneath the path of the book A to be bound, and dip into the glue of the glue pot and serve to carry this glue up, and to wipe it across the'bottom cut back of the book. It will be observed that the direction of travelof these gears is in opposite direction across the bottom of the book, so that these'projectin'g edges are fanned or spread first. in one direction from normal, and then in the other; so as to cause this glue to be thoroughly worked into the back and to .both surfaces of the sheets closely adjacent their back edges. V I This glue is made quite thin and is kept hot by any desired means (not shown) so as to better enable it to penetrate the sheets. Followving the gluing gears 43., 44 is a gluing wheel 45 which is carried on a shaft 46 which has a bevel gear 47 meshing with another gear 48, which is carried on a shaft 49 which has a' bevel gear 50 meshing with the bevel gear 40. The gluing wheel 45 adds a fresh amount of the thin glue tothe bottom of the book and assists further in working the glue inbetween' the sheets.

. As the book then proceeds itpasses through between two oppositely disposed pressing idler rollers 51, 52 (see Fig. 3). Theserollers are mounted upon vertical pivots carriedv by the glue potv G and serve to press the laterally spread edges of'the sheets A from the dotted line positionto the full ,line position of Fig. 3, at the same time squeezing out some of the'glu'e which is held between the edges of these sheets. The glue pot C is adjustably carried on stand- 'ards C.

As the book A passes these rollersit passes overa rotary scraper 53 which is mounted on the shaft 36, this scraper being rotated so that its upper edge runs counter' .to the edge of the book, thereby scraping from the back of the book anyexcessiglue. The links carrying the books A then pass around the sprocket 15 and as they do so are brought into the semi-circular trough -54 of the chilling mechanism D. The trough 54 has a bottom 55. in which is a series of holes 56 communicating with a passage 57 .whichyextends throughout: the length of the trough 54. Near the entering end of the trough located a' container 58 having a removable cap 59 by which it can readily be filled with dry ice, or the like 60. A current of air is preferably slowly passed over this dry ice by means of a tube 61 from any source of air pressure. Whenso employed the air passes down This shaft drives, through suitable sprockets and a chain 34, a shaft 35 which drives the glue feeding mechanism of the glue pot C. The shaft 35 in turn drives a shaft through the cooling medium 60, is chilled to a point well below zero, and passes up through the openings 56 into contact with the glued back of the book A. In this way the glue becomes chilled and considerably thickened by the time it passes out of the opposite end of the mechanism D. i

"As the book leaves the chilling device it passes over the glue po't E'filled with-aheavy glue which is particularly adapted to hold the cover which is later to be applied. Having chilled the thin glue which has been previously applied, the glued back of the book is now in condition to receive this thicker glue. The glue pot E has a glue feeding roller 62 adapted to carry glue to the back of the book, and which is mounted on a shaft 63 which is driven by means of sprockets and a chain 64 from the shaft 33. The shaft 63 also carries a sprocket 65 which drives a sprocket 66, which in turndrives through a gear 67, a gear 68 on a shaft 69. This shaft carries a rotary scraper similar to the scraper 53 which removes the excess glue which has been deposited by the glue wheel 62. V V

Passing the glue pot E the book Anext passes over the mechanism F by means of which a super is fed to the glued back of the book. This mechanism is shown in side elevation in Fig. 4, and is operated in timed relation to the positioning of the book A by. means of a cam- 70 on the shaft 28. This cam serves to operate a lever 71 pivotally mounted at 72-. An operating rod 73 is pivotally connected to theopposite end of the lever 71, the upper end of this rod being connected to a sliding block 74 which is normally retracted, as shown in Fig.4.

A roll of open mesh gauze 75,.is mounted upon a suitable reel 76 which is carried by the .frame 77 of the super mechanism. This gauze passes through between two feed rolls 78, 7-9,. the latter being driven by means of a'ratchet 80 and a spring pressed pawl 81 which is carried on a lever 82, which is pivotally mounted on the shaft of the roller 79, the outer end of the lever 82 being pivotally. connected to a rod 83 which is adjustably connected to the end of the lever 71.

Thus it will be seen that as the rod 834s raised, the pawl 82 will snap over the teeth of theratchet 80,and then as therod 83 drops the pawl will engage the teeth of the ratchet thereby rotating the roller-.79 a part of ya revolution in a counterclockwise direction. Thus the gauze 75 is forced through by the feed rollers and it passes underneath a fixed block 84 which has a. sharp shearing rear edge, the opposite member of the shear being carried by. the block 74. Thus as the block raises it cuts off the portion 85 of the gauze 75, and the portion so severed serves as a super. This-super is then raisedby the block 74, and when near the bottom of the book'A a blast of air from a pipe 86, connected to' a blower, (not shown) serves to lift the-super 85 into contact with the glued back of the book where it adheres and is carried forward by thebook. As the rods 72 and 83 then fall'a new portion of the gauze 75' is herein in detail, but which is shown in the Bredenberg patent above referred to.- Thecover J is then applied as described therein, or in any other desired way, the book and cover then passing around therounded' guides 87.

As the rollers 23 strike the cam 24, the rollers ride up on the cam forcing the plates 20 outwardly and releasing the bound and covered books which drop on the delivery conveyor H,

by which they are carried oil.

Referring now to Fig. 2, the gathered but uncut and unbound books A are carried to the chain 14 by means of a conveyor 88 which runs in timed relation to the chain 14 so that each book A is fed to one of the chain links 14 while it is held open by the cam 24. On running off the upper end of this conveyor the book A is positioned by the'horizontal table 89 carried by the main frame at which time the roller passes oil the end of the cam 24 thereby gripping the book to be bound.

This book is then trimmed by the band saw B which is driven by the pulley B on the shaft I While we have shown and described but a single embodiment of our invention, it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangementmay be made which do not depart from the spirit and scope of the invention as disclosed in the appended claims.

We claim:

1. In a mechanism for gluing the back edges of books and the like, means for applying glue to the edges of the books, means for chilling the glue thus applied, and means for applying glue to the glued edges subsequent to chilling same.

2. In a mechanism for gluing the back edges of books and the like, means for applying glue to the edges of the books,'a housing'through which the glued portions of the books pass, means for chillingthe housing, and means for applying glue to the glued edges subsequent to chilling the same.

3. In a mechanism for gluing the back edges of books and the like, means for applying glue to the edges of the books, a housing through which the glued portions of the books pass, said housing having means for holding a refrigerant for chilling the glued portions, and means for applying glue to the glued edges subsequent to chilling the same. a

4. In a mechanism for gluing the back-edges 90 of books and the like, means for applying glue to the edges of the books, means for scraping, ofi excess glue, means for chilling the glued portions, and means for applying glue to the glued edges subsequent to chilling the same.

5. In a mechanism for gluing the back edges of books and the like, means for applying glue to the edges of the books, a U-shaped housing through which the glued portions of the books pass, a perforated passage communicating with said housing, and a chamber .for holding a refrigerant communicating with the passage.

6. In a mechanism for gluing the back edges of books and the like, means for applying relatively thin hot glue to the edges of the, books,

means'for simultaneously spreading the leaves at the point of application of the glue, means for applying the pressure to the sides of the book adjacent the glued portions to force the glued edges together, a housing through which the

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