US2508585A - Book joint creasing machine - Google Patents

Description

May 23, 1950 J. D. STONE BOOK JOINT CREASING MACHINE 2 Sheets-Sheet 1 Filed Jan, 51, 1947 INVENTOR, JvZzcLn 12 .Stone HIS ATTORNEYS May 23, 1950 J. D. STONE BOOK JOINT CREASING MACHINE 2 Sheets-Sheet 2 Filed Jan. 51, 1947 INVENTOR. Julian D. .Sfione BY HIS ATTORNEYS Patented May 23, 1950 UNITED STATES TENT OFFICE BOOK .lOiNT CREASING MAGHINE Julian D. Stone, Nashville, Tenn, assignor, by mesne assignments, of one-half to himself and one-half to Gilbert W. Lovell, Nashville, Tenn.

Application January "31, 1947, Serial No. 725,563

7 Claims. 1

This invention relates to an apparatus for forming joints in book covers by creasing the latter along lines adjacent the rear or bound edge-of the book. 7

In the binding of bo'oksjit has been more or less general practice to attach, by gluing, materials such as crash and paper to the backs of the stitched signatures for the purpose of strengthening the backs and to then paste the leaves and apply the covering for the front and back of the book. After these operations, joints are formed in the covered backs or covered fronts and backs of the books, these joints being formed in some instances by stacking the books in presses with beaded binding boards or ribbed plates inserted between the books so thatupon the application of pressure thereto until the adhesive has hardened, the cover joints formed by the creases produced'by the beads or ribs are set.

One object of the present invention is to provide an apparatus which eliminates the necessity of employing press boards such as the binding boards-or rib plates just referred to and the placing of the books with the boards in a press for creasing the covers and forming the joints therein, thus materially reducing the cost of forming the book joints.

Another object of the invention is to provide a book cover joint forming machine of comparatively simple construction and which is of a portable nature 'so that it can "be set "up for use in practically any desired location in a bindery, thus lending itself to economical usage particularly in small binderies.

Still another object of the invention is to provide a machine "of the type indicated which can b'eoperated with maximum efiicien'cy in the-sense that the machine can accommodate or operate upon two books simultaneously whereby production can be speeded up when desired.

Still another object is to provide a book cover creasing machine which is readily adjustable for accommodating books of different thicknesses or for varying the pressure applied to the books whose coverings are being creased.

A further object is to provide a book cover creasing machine which is also readily adjustable for varying thespaci-ng of the crease or joint in the cover with respect to the rear or bound edgeof the book.

With these and other objects in view, the invention consists in certain details of construction and combinations and arrangements of parts, all as will hereinafter be more fully de- 2 scribed and the novel features thereof. particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a side elevation of a creasing or joint forming machine embodying the present invention;

Fig. 2 is a vertical sectional view on the line 22 of Fig. 1';

Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. 1;

Fig. 4 is a detail sectional viewon the line 4-4 of Fig. 1;

Fig. 5 is another detail sectional View on the line 55 of Fig l;

Fig. 6 is a top plan view of the lower creasing blades and stop members, only a portion of the book supportin table or platform being illustrated;

Figs. 7 and 8 are detail sectional views on lines 1--l and 8-8 of Fig. '6, respectively, Fig. 8 being somewhat enlarged; and

'Fig. 9 is an enlarged plan view illustrating the stop member guide means.

In accordance with the present invention the crease or joint is formed in the covers of the book by upper and lower creasing members 10 and l l one of which is movable toward and from the other to clamp between them the rear or bound edge of the book when the book is placed on a table 2 with its bound edge projecting beyond the edge of the table to an extent where the covers will be engaged by the creasing members alon the line at which it is desired to crease or form the joints in the book covers. Preferably, the present machine is designed tooperate upon two books simultaneously so that in the construction illustrated the table 12 is sufficiently large to support two books laid flat thereon with their bound or rear edges disposed toward each other and projecting beyond the edges l2 of the table, the edges l2 being formed by an opening [3 (Fig. 6) of suitable size located more or less centrally of the table. The table I2 is supported on end standards M of a suitable frame and said standards also support a rigid cross b'ar 15 located below the table. Where two books are to be operated upon simultaneously there are, of course, two sets of vertically spaced creasing members II], II, and, as it is preferred that I only one member of each pair be movable with respect to the other 'for the purpose of clamping the book between them, the lower creasing members l0 are rigidly mounted on the crossbar l5 with their upper edges protruding slightly above thesurface of' table It. adjacent an edge 12 of 3 said table. On the other hand, the upper creasing members II which are movable toward and from the lower creasing members H! are mounted on a crosshead l6, which is carried, at its ends, on spindles H, which, in turn, are supported on the upper ends of connecting rods l8, so that, by raising and lowering said connecting rods the crosshead, together with the upper creasing members l I can be moved toward and from the lower creasing members ID. The crosshead I6 is guided in its vertically reciprocating motions by guide rods [9 mounted on crossbar IS, the cross-i head being free to slide on said guide rods as will be well understood. I {j 1 a In order to determine the line along which the 2,508,585 .2 r" T J portant that both ends of the crosshead be moved the same distance or adjusted to the same extent any time an adjustment is made and in order that this can be accomplished means are provided for rotating the spindles at the two ends of the crosshead simultaneously. For instance, the upper end of each spindle may be provided with a sprocket wheel 29 and the two sprockets connected by a sprocket chain 30, so that, by rotating one of the sprockets, for instance, with a small crank 31, the two sprockets with the spindles on which they are mounted will be rotated in unison and both spindles moved up or down the same distance on the threaded upper book covers will be creased gauge plates or stops are provided for limiting the insertion of the bound or rear edge of the books between the:

vertically adjacent an edge I2 of the opening l3 in the table and these vertically disposed legs of the two angle bars constitute the stops for limiting insertion of the books between the creasing members. Preferably the two stops are yieldingly urged toward each other by springs2l attached to said vertical legs but to properly locate or position these stops with respect to'the creasing members vertical shafts 22 journaled in crosshead it have cams 23 on their lower ends positioned between the upright legs of the angle iron stops, these cams determining the extent to which the stops can move toward each other under the influence of the springs 2|. Thus, when it is desired to alter the position of the stops relatively to the creasing members, shafts 22 can be rocked in one direction to forcethe stops away from each other under the influence of thecams or the stops can move toward each other or away from the creasing members under the influence of springs 2| if the shafts 22 are rocked'in the opposite direction. To facilitate the rocking of these stop adjusting cam shafts and to insure actuation of the cams in unison with one another the two shafts are connected together at their upper ends by means of rocker arms 24 mounted on the shafts with a link 25 attached at its ends to said rocker arms and an operating handle 26 (Fig. 4) is provided on said link for moving the latter in either direction depending uponthe direction it is desired to rock the shafts.

It is also desirable that the machine be capable of operating upon books of different thicknesses by varying the distance the upper and lower creaser bars l0, ll,are spaced from each other when in their open or separated position. -For this purpose,-the crosshead ld which-carries the upper creasing members It, I l,-is adjustable longitudinally of the rods 18 by which it is reciprocated. Preferably, this adjustability of the crosshead is obtained by having the upper ends of the rods i8 screw threaded and providing an adjust ing nut 27 at the lower end of each spindle. The crosshead is mounted on each spindle between'a rigid collar ll at the'upper end of the spindle and a separable collar li threaded "in the lower end of the spindle and the adjusting nut 21 of each spindle is adapted to be normally locked against rotation by a set screw 28' which extends through the nut and engages against this lower collar of .thespindle. It is, o f course, ixnends of rods l8; depending upon the direction in .trolled by a manually operable switch (not shown); As these heating means actually form no part of the present invention, this more or less diagrammatic illustration of the electrical 1|: vision of dual sets 'of creaser blades in the open-.i

present purposes.

. As previously indicated the present machine is preferably of the portable type and for this reason the end standards are mounted on a base 33,

' which, in turn,is provided with suitable rollers 34 whereby it may be readily moved to any desired locality in proximity to an electrical outlet. Actuation of rods i8 for reciprocating crosshead I6 is not limited to any particular form of motive power but in the portable form of apparatus it is preferred that the rods be actuated by power derived from an electric motor 35 mounted on the base 33' of the machine frame. The motor is shown more or less diagrammatically and as is also reduction gearing 36 which is connected to said motor by. belt 31, and, in the present instance, the output shaft of this reduction gearing has mounted thereon a box cam 38 with which there is associated a cam roller 39 on the end of a rocker arm 40 of a main actuating shaft 41 journaled in suitable. bearings on the base 33. This main operating. shaft 4| is also provided with two additional rocker arms 42 to which the lower ends of the rods ['8 are pivotally connected. The flow of electrical current to the motor 35 is controlled by a switch (not shown) which-may be of the type wherebythe motor may be op-. erated at different, controlled speeds. Switches of this type are of well known construction and need not be described in detail here and neither is it deemed necessary to illustrate the electrical connections between the, switch and motor or between the switch and the source of supply of electricity. However, it will be apparent that upon placing the motor in operation the main operating shaft 4! will be rocked in its bearings by rocker arm dt'with the result that the rods IE, together with the crosshead l6 carrying the upper creasing plates ll, willbe'reciprocated vertically, the speed of operation being such that books can be successively placed between cooperating creasing members each time the upper member is raised away' from the lower creasing member, It will be appreciated that by reason of the proing of the table, two operators at opposite sides of the machine can materially increase the production of books with finished, creased covers.

What is claimed is:

1. In a machine for forming hinge creases in book covers, the combination of a platform for supporting a covered book with the rear edge of the book projecting beyond an edge of said platform, a gauge plate extending along but spaced from said edge of the platform, creasing bars supported in alinement with the space between said gauge and platform, means for effecting relative movement of said bars toward and away from each other to permit insertion of the rear edge of a book between the bars and to temporarily clamp the book between them, and means for adjusting said gauge plate toward and away from the edge of the platform to regulate the distance a book is inserted between said creasing bars.

2. In a machine for forming hinge creases in book covers, the combination of a horizontal platform having an elongated opening extending across the same, a pair of upper and lower creasing bars supported adjacent opposite longitudinal edges of said opening, means for moving one creasing bar of each pair vertically away from the other bar to permit the backs of books supported on said platform to be inserted and clamped between said pairs of creasing bars, and means for limiting insertion of said books between said bars.

3. In a machine for forming hinge creases in book covers, the combination of a horizontal platform having an elongated opening extending across the same, a pair of upper and lower creasing bars supported adjacent opposite longitudinal edges of said opening, means for moving one creasing bar of each pair vertically away from the other bar to permit the backs of books supported on said platform to be inserted and clamped between said pairs of creasing bars, stops for limiting the insertion of the backs of said books between the creasing bars, and means for adjusting said stops toward and from the longitudinal edges of said platform opening.

4. In a machine for forming hinge creases in book covers, the combination of a frame, a book supporting platform horizontally mounted on said frame and having an elongated opening extending across the same whereby books can be positioned on said platform at opposite sides of said opening with the backs of the books projecting beyond opposite edges of said platform, a rigid crossbar on said frame, a pair of creasing bars mounted on said crossbar with the edges of said creasing bars disposed along said opposite edges of the platform opening, a vertically reciprocatory crosshead mounted in said frame above said platform, and a second pair of creasing bars mounted on said crosshead in vertical alinement with said first mentioned pair of creasing bars.

5. In a machine for forming hinge creases in book covers, the combination of a frame, a book supporting platform horizontally mounted on said frame and having an elongated opening extending across the same whereby books can be positioned on said platform at opposite sides of said opening with the backs of the books projecting beyond opposite edges of said platform opening, a rigid crossbar on said frame, a pair of creasing bars mounted on said crossbar with the edges of said creasing bars disposed along said opposite edges of the platform opening, a vertically reciprocatory crosshead mounted in said frame above said platform, a second pair of creasing bars mounted on said crosshead in vertical alinement with the first mentioned pair of creasing bars, and stops adjustably mounted on said crossbar for limiting the insertion of the backs of books between said creasing bars.

6. In a machine for forming hinge creases in book covers, the combination of a frame, a book supporting platform mounted on said frame and having an elongated opening extending across the same whereby books can be positioned on said platform at opposite sides of said opening with the backs Of the books projecting beyond opposite edges of said platform, a rigid crossbar on said frame, a pair of creasing bars mounted on said crossbar with the edges of said creasing bars disposed along said edges of the platform opening, a vertically reciprocatory crosshead mounted in said frame above said platform, a second pair of creasing bars mounted on said crosshead in alinement with the first mentioned pair of creasing bars, stops on said rigid bar for limiting insertion of the backs of books between the alined creasing bars, shafts journaled in said crosshead and disposed between the stops on said rigid bar, and cams on said shafts engaging said stops for adjusting the latter relatively to the edges of the opening in said platform.

7. In a machine for forming hinge creases in book covers, the combination of a portable frame, a book supporting platform horizontally mounted on said frame, vertically alined creasing bars supported on said frame adjacent an edge of said platform, means for moving one of said creasing bars vertically toward and away from the other whereby a book supported on said platform can be inserted between said creasing bars when the latter are moved away from each other, stop means for limiting the extent to which a book on said platform can be inserted between said bars, and means for adjusting said stop means toward and from the platform edge adjacent said creasing bars.

JULIAN D. STONE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,874,165 Bredenberg Aug. 3, 1932 2,151,957 Davis Mar. 28, 1939 2,151,991 Schramm Mar. 28, 1939 2,375,398 Wilkins May 8, 1945

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