US1815511A - Loose leaf book - Google Patents

Description

i Juiyvzl, 1931. J, A KEENE 1,815,511

LOOSE LEAF BOOK Filed June 22. 1929 "25 tached a `ball Patented July 21, 1931 .JAMES KEENE, orl LONDON, ,ENGLAND LQOSE LEAF BOOK Application iiled :Tune 22, 1929,Sera1No. 372,850, and in Great Britain December 28, 19,28.

. Vllhis invention relates fto loose `leal:l books of the kind in .which the leaves or papers are filed VAupon loops of substantially circular orm,.each,loop 'being made in halves or sub- A stantial'ly seniicircuilar portions in hinged relationlso .thattlieycan be separated to receive .the leaves .or lpapers and :then closed to preventescape thereof when being turned over `upon :the Vsaidrzloops.

"l0 According to the invention a spring snap device fis provided `for holding ,the sections of the loopspin a closed position.

.Further according cto the present invention ithere isprovided a loose lea'i book of the 'typereferred to, whereinthe sections of all the loops are arrangedto ,be opened or closed and maintainedclosed by a snap Lactiondevice comprising two ball heads arranged to ride one over theother. Y

In a suitablearrangementifor carryingthe invention into fpractice `the vhalves of the loops are carried` by metalstrips each formed with ilugs 4along one :edge which interlock to Vtorina hinge. To each.of';the strips ,is at.- or -rounded vmember, which members ibfear against fone another in the closed position yoifthe loops in ,such a manner thattheynslightly 1 obstruct one anothers t path of movement when opening the loops,

" 0 and .require to Vbe. moved apart during such opening movement, such movement apart being automatically effected by the action oftherounded members as they ride on one aiiiotlierwvhen pressingthemin the directions necessary lfor .opening-the loops. Thesaid members are connected tothe strips through .the mediuniof resilient wiresorrods allowvgig-Qta.spring-snap action of thesaid meiners.

gether in the closed position and the half .loops and :the rounded ffastening members are advantageously formedintegral with the 45 strip members by stamping from sheet metal.

.The endsofthehalf loops may -buttto- *section on the line 3.-?) of Figure a strip of metal and the other halves are similarly formed integral with asecond strip oi' metal. The free edges of the strips of inet-al are provided with lugs arranged so that on the said edges being placed together the lugs on one strip `will ,extend over they other strip and the .two ystrips `.when so arranged will Vcorrespond Lto the leaves of la hinge. `The .strips arranged in the manner described are carried between the inturned ai edges 4of a spring metal member which ,is substantially of Vsemi-.circular .crosssection so that Va certain pressure -is applied Eto `the edgesofthe strips from Wlhiclithehalffloops extend. Substantially midway oteach o f E? said strips is provided one ofaupairfof alims each carrying e ball head LSO lalilaesedfathat when the said balls yare moved past A.each other, 5in Va direction to cvloseftheV loops, they .will ride Tover ,one yanother Ein frictional ,con- Tf1 tact and with a .certain amount of spring fiction, irlili .ensuresitheir remeiinsrn the position to which they are grieved l,and theren by ymaintain,1the loopsclosed, and ontlie said balls being forcibly` moved the rings .-7.5 .will be opened. Y

Y The spring member is providedzwith holes, andeach of theadjacent edgesofthe `strips vwith `registei'fing semivcircul'ar cutaway ,pon .tions Iandpolst ,members are .passed there 'i through anddalso through a strip offinaterial and a inetalback piecepvhereby ontheinaterial ,being glued, or Lotherwise secured to the baclcof abook, the Whole will beheld securely in. position.

In order that the invention maybeiindei'- stood, the same `will now `bedescribed with reference to the accompanying drawings, in .which Figure l shows anelevationiofa pQrtQn $30 of a loose leaf book constructed according to the present invention, with the `fastoning :loops closed.

-EigiireQ illustratesonan enlarged scalea section on tlieline 2-2 of vFigure '1.

c iFigure Sillustrates on an'enlargedrscale a yl. Figure :4 is aviewsimilar to. Figures2 and 3,A showin-githe' loops in an open, position. mi iligurejV is a freer view .of the loop and 1 spring members assembled but detached from the book, and

Figure G is a perspective view of portion of the fastening device.

Referring to the drawings, 1, 2 are two series of half loops formed integral with metal strips 3, 4 on the abutting edges of which lugs 5, G are formed and 7 is a semi-circular spring member between the inturned edges S, 3 of which the strips 3, 4 are secured. Arms 9 and 10 are provided on the strips 3, 4 substantially midway of the length thereof, and carry ball heads 11 and 12.

The spring member 7 is cut away at the edges to accommodate the half loops 1 and 2 and the arms 9 and 10.

The strips 3 and 4, when assembled with the spring member 7, appear on the under side as shown in Figure lloles 13 are provided in the spring member T and conjointly in strips 3, 4 by forming semi-circular notches in the adjacent edges thereof. Post members 14 (Figures 1 and 2) are passed through the holes 13 and also through a piece of flexible naterial 15 and holes in a metal backing piece 16, so that the members 7, 15 and 16 are secured together in a manner which allows a. certain amount of spring action for the member 7. The piece of material 153 is secured to the back orP a book 17 by gluing or other suitable means.

Vhen the loops are in the closed position the parts will be as shown in Figures 1, 2, 3 and detailed 5, with the loops securely maintained in such' closed position by the spring action of the member 7 on the strips 3, 4 and the interengagement of the ball heads 11 and 12.

To open the loops the ball heads 11 and 12 are forced over one another into the position shown in Figure 4, and move with them the strips 3 and 4 and the half loops 1 and 2. The parts are maintained in a fixed open position by the spring member 7 pressing upon the edges of the strips 3 and 4 and by the lugs 5 and G of the strips 3 and 4 resisting the pressure everted by the spring member.

rlhe leaves for the book are formed with cut-away portions 13, indicated by the dot and dash lines, Figure 1, so that the said leaves on being turned will pass the projecting ball heads 11 and 12.

Figure 6 illustrates the manner in which the half loops are formed integral with the strips 3 and 4, an extension of the said strip being pressed into tubular formation and thereafter suitably curved.

Claims:

1. 1n a loose leaf book of the type referred to, a plurality of leaf-securing sectional loops, arranged with one series of sections adjacent a corresponding series of sections, means for hingedly securing the adjacent sections together at one end, so that the free ends of the same abut when in closed position, and

a snap action device including adjacent ball heads, arranged to ride one over the other, for maintaining said loops in closed position.

2. A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and carrying the respective series of sections, and a projecting arm bearing a corresponding ball head at one end connected to each of said metal strips.

3. A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and carrying the respective series of sections, and a projecting` arm bearing a corresponding ball head at one end connected to each of said metal strips, the abutting edge of each metal strip being provided with lugs adapted to extend over the edge of the adjacent metal strip to afford said hinge connection.

4. A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and carrying the respective series of sections, a projecting arm bearing a corresponding ball head at one end connected to each of said metal strips, and a spring member for maintaining said metal strips in abutting relation to one another.

5. A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and carrying the respective series of sections, a projecting arm bearing a corresponding ball head at one end connected to each of said metal strips, the abutting edge of each metal strip being provided with lugs adapted to extend over the edge of the adjacent metal strip to afford said hinge connection, and a spring member of substantially semi-circular cross section, having inturned edges for engaging said strips, to maintain the same in abutting relation.

G. A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and integrally carry the respective series of sections, and a projecting arm bearing a corresponding ball head at one end integrally connected to each of said metal strips.

7 A loose leaf book as claimed in claim 1 wherein said means for hingedly securing the adjacent sections together includes a pair of metal strips hingedly connected together and carrying the respective series of sections, a projecting arm bearing a corresponding ball head at one end connected to each of said metal strips, the abutting edge of each metal strip being provided with lugs adapted to extend over the edge of the adjacent metal strip to afford said hinge connection, a spring member of substantially semi-circular cross section having inturned edges for engaging said strips to maintain the same in abutting relation, a backing piece, and a piece of ma-r serial secured between said spring member and said backing piece.

JAMES ADAMS KEENE.

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