US2030472A - Book construction - Google Patents

Description

Feb.11,1936. FSSCHADE 2,030,472

BooK CONSTRUCTION Filed June 26, 1935 l 'l 1 "/7 l /0 INVENTOR l f1/wf mfwgynmog BY www@ ATTORNEYS Patented Feb. 11, 1936 2,d30,472

UNITEDI STATES PATENT OFFICE BOOK CONSTRUCTION Frank Stanley Schade, Holyoke, Mass., assignor to National Blank Book Company, Holyoke, Mass., a corporation of Massachusetts Application `une 26, 1935, Serial No. 28,420 I s claims. (c1. 281-19) In the manufacture of books, particularly of loops or arches I3, which may be stamped or the blank book type, it has heretofore been prostruck up from the body of the plate in the manposed to make the bound portion removable from ner best shown in Figs. 2 and 3; and which are the cover of the book, so that a single cover may preferably of a width equal to the spacing be- 5 be used for a plurality of diierent llers; and tween adjacent coils of the wire helix so as to 5 many different constructions have been proposed give support thereto in a longitudinal direction for this end. In my prior application Serial No. in a manner which will be fully discussed later 754,456, led November 23, 1934, Ihave described on. If the lining I2 is used, the arches I3 of a construction in which a helical wire is used for course stick up through it, the lining being suitsecuring the stack of paper sheets, the wire beably apertured for that purpose. 10 ing secured to the inside of the back of the bind- The arches I3 are spaced apart a distance ing by a rod passing within the Wire coil and preferably corresponding to a multiple of the disunderneath struck-up loops or arches extending tance between successive coils of the Wire helix from the back of the binding at intervals between Ill, which has been threaded through holes I5 in l5 the coils. One diiiiculty with this type of conthe sheets of a papel Stack I3 S0 aS t0 Olm the 15 struction, particularly when it has been employed binding therefor. This degree 0f spacing aVOidS on books having a nat back panel, has been in any necessity of stretching 01 @Ontracting the the maintenance of a substantial degree of coils of the wire helix, a matter of considerable rigidity of the helical wire coil in a sideways impOrtanCe 0n aceOunt 0f the effect of a distordirection; the coil evidencing a tendency to tion of the helix in preventing smooth turning 20 rock upon the back panel and giving an undeover of the leaves of the stack. The width of the sirable looseness in the appearance of the book aleheS is, aS peihted Olli? abGVe, preferably equal as a Whole. It is the purpose of the present into the Space between adjacent Coils, thereby furvention to provide a construction in which this ther avoiding any distortion of the helix and asundesirable looseness will be avoided, and in Sisting in giving it a rm anchorage in a manner 25 which a firm union of the helical Wire coil about to be described. A locking member I7 exand the binder-carried backing plate can be tends through the helix and underneath the loops attained with simple means. It is a further puri3 S0 as t0 bl'ld the heliX imlY against the back pose to improve upon the assembling means Plate l- At One end the member Il haS all 11P- previously proposed with respect to the ease and turned portion I8 which serves as a handle for 30 rapidity With which the parts can be put @0- lhe member in inserting il; in and I'emOVng it gether, from the arches I3. At its end remote from the The invention will now be described with refhandle the member is adapted to Contact with a erence to the accompanying drawing, in whichstop I9 formed by bending up the end 0f the plate Fig, 1 is a, plan View of a, book embodying the l, so that the motion of the member into the po- 35 invention, the book being shown open and with Sil/i011 it aSSllmeS When hOldhg the parts assemits component parts partially broken away; bled will be limited. The stop I 9 and the turned Fig. 2 is a detail section, on an enlarged scale, up portion I8 of the member II also serve as limitthrough the helical wire coil and its attaching ing abutmehts OI' the Wire heliX; 0n the one hand 40 means; and preventing any stretching of the helix and on 40 Fig. 3 is a side view showing a detail of the the other hand guarding the helix against being wire coil and its attaching means. caught against other objects while the book is In the manufacture of the improved book made being handledin accordance with the present invention there AS has beeh Stated ebOVe, 011e dimelllty With is employed a plate IB, which in the form shown assemblies of this general type is their tendency 45 is preferably at S0 as t0 accord With the flat towards lateral instability. In the present CaSe back panel of one commercial type of blank book. the member l l is made 0f a Special shape to in- This plate is secured in any standard or desired Crea-Se this lateral Stability t0 a degree such that Way to a book cover I I, the details of which need the structure is entirely practicable even where not be described as they form no part of the aat back plate iS used. T0 this end thevmember 50 present invention. As shown, the book cover is il is made of Sheet metal bent so as to be conprovided with a lining I2 extending across the Cave downwardly, the upper Surface 0f the memplate IU, but this lining may be omitted or terber being preferably convex on the same curvaminated short of the plate, as may be desired for ture as that of the inside of the loops I 3, although .55 particular designs. The plate I0 is formed with other curved shapes or even an angular form 55 may be used if desired. As will be best seen from Fig. 2, the helix I4 is given by this means a threepoint support which is conducive to the highest lateral stability possible for a given area of supporting surface, and lends itself in cases where great rigidity is required to an actual flattening of the coils between the member I1 and the plate Ill. At its bottom the helix, whether flattened or not, rests upon the plate I0 or upon the lining l2 if this be continued over the plate. Spaced laterally on each side of this line of contact the coils of the helix are contacted with by the edges of the member I3. It will be apparent that as contrasted with the use of a round rod, which would give a contact with the coils directly above the contact which these coils have with the plate, there is in the form shown a double contact of the member IT with the coils, one on each side of the line of contact of the coils with the back plate. With the round rod type of anchorage the rigidity of the helical coil in a sideways direction can only be attained in a high degree by a concave curvature of the back plate I Il. In the present construction, on the contrary, any desired degree of rigidity can be attained, even with a flat back plate, by increasing the pressure with which the coils are pinched between the plate III and the member I'I; with an actual attening of the coils against the plate, if desired. This attening would not be possible in the case of the round rod anchor, since in that case the pressure on the coils is along a single straight line.

One further factor contributing greatly to the stability of the assembled product relates to the form of the arches I3. As stated above, these arches are made of a width to exactly ll the spaces between the adjacent turns of the helical coil I4. It will be clear from a consideration of Figs. 2 and 3 that a direct longitudinal support is given to the adjacent coils by these arches; and since the coils of the helix are all interconnected these spaced supports will give a high degree of longitudinal stability to the coil considered as a whole. This longitudinal stability is also aided by the parts I8 and I9 which come at the ends of the helix and perform for these portions somewhat the same functions that the arches perform for intermediate portions. Of course if this degree of stability is not desired the arches may be made narrower or the end pieces omitted, while retaining the beneficial functions of the other features of the invention. It is preferred, however, to employ in combination all of the modes described by which stability, either longitudinal or lateral, is attained, as these modes when employed in combination act to mutually reinforce each other and a more satisfactory product is thereby attained.

A further advantage possessed by this type of construction is in its ease of assembly as contrasted with the use of a round rod as a securing means. It will be seen that in assembling the paper stack in the binder the securing member I'I must be threaded through a series of coils I4 and arches I3, and that any tendency to catch upon these parts will require more time and care in assembly. A round rod in order to go through the parts at all needs to be so small in diameter that no effective beveling of its forward end can be had. With the concave member I'I, on the contrary, a considerable width and depth are available, and the forward end 20, as shown in Figs. l and 3, can be tapered up and down as well as sideways so as to make its entrance through the series of loops and coils very easy while maintaining a tight engagement when the member has once been threaded in place.

The simplicity of the arrangement described will be apparent, as will also the great rigidity of the member Il in proportion to its weight, this being due to the concave shape described above. This rigidity not only adds to the rigidity of the device as a whole after assembly, but prevents any tendency to buckling on the part of the securing member while it is being threaded into place.

Having thus described the invention in its preferred form, I will proceed to define its novelty both in its generic and its preferred forms in the following claims.

I claim:

1. In a book having a removable filler bound together with a helical wire coil, said coil being held by a securing member passing inside the coil and underneath arches formed in a back plate secured to theV cover of the book, that construction of securing means in which it is shaped to contact with the wire coils along two lines spaced laterally from the central line of contact of the wire coils with the back plate.

2. In a book having a removable ller bound together with a helical wire coil, said coil being held by a securing member passing inside the coil and underneath arches formed in a back plate secured to the cover of the book, that construction of securing means comprising a member con- Vex in cross-section so as to contact with the inside of the arches and having contact with the inside of the coil along lines spaced laterally from the central line of contact of the wire coil with the back plate.

3. In a book havingv a removable ller bound together with a helical wire coil, said coil being held by a securing member passing inside the coil and underneath arches formed in a back plate secured to the cover of the book, that construction of securingA means comprising a sheet metal member bent into concavo-convex cross-section with its convex side in engagement with the inside of the arches and its concave side in engagement with the inside of the wire coil.

4. In a book having a removable filler bound together with a helical wire coil, said coil being held by a securing member passing inside the coil and underneath arches formed in a back plate secured to the cover of the book, that con struction of securing means comprising a sheet metal member bent into concaVo-convex crosssection with its convex side in engagement with the inside of the arches and its concave side in engagement with the inside of the Wire coil, one end of said member being provided with a bent portion serving as a handle and the other end of the member being tapered to facilitate its entrance into the spaces between the coil and the loops.

5. In a book. having a removable filler bound together with a helical wire coil, said coil being held by a securing member passing inside the coil and underneath arches formed in a back plate secured to the cover of the book, that construction of securing means comprising a member shaped to contact with the Wire coil along two lines spaced laterally from the central line of contact of the Wire coil with the back plate, and curved in at least two directions at its forward end to facilitate its entrance into the spacesbetween the coil and the arches.

6. In a book having a removable ller bound together with a helical wire coil, a back plate having arches of a width so that each arch will completely ll the space between adjacent turns of the wire helix, and a member passing inside the coil and underneath said arches, the member being shaped to contact with the wire coil along two lines spaced laterally from the central line of contact of the Wire coil with the back plate.

7. In a book having a removable ller bound together with a helical wire coil, a back plate having arches of a width so that each arch will completely ll the space between adjacent turns of the wire helix, a. member passing inside the coil and underneath said arches, the member being shaped to contact with the wire coil along two lines spaced laterally from the central line of contact of the wire coil with the back plate, and abutments at each end of the wire coil limiting the motion of the coil in an outward direction.

8. In a book having a removable filler bound togeter with a helical wire coil, a back plate having arches of a Width so that each arch will completely ll the space between adjacent turns of the wire helix, a member passing inside the coil and underneath the arches, the member being convex in cross-section so as to contact with the inside of the arches and having contact with the inside of the coil along lines spaced laterally from the central line of contact of the wire coil with the back plate, the member being bent upwardly at one end to form a handle and to limit the out- Ward motion of the adjacent end of the wire helix, and the back plate being bent upwardly at the end remote from the handle on said member to form a stop for said member and to limit the outward motion of the adjacent end of the wire helix, the lateral stability of the Wire helix being determined by the attening pressure exerted on the helix by the gripping action of the member on the one hand and the back plate on the other hand, and the longitudinal stability of the helix being enhanced by the contact of the arches with the adjacent turns of the helix.

FRANK STANLEY SCHADE.

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