US1531204A

US1531204A - Loose-leaf binder

Info

Publication number: US1531204A
Application number: US718340A
Authority: US
Inventors: Mclaughlin James
Original assignee: Steel Back File & Ledger Co
Current assignee: Steel Back File & Ledger Co
Priority date: 1924-06-06
Filing date: 1924-06-06
Publication date: 1925-03-24
Anticipated expiration: 1942-03-24
Also published as: GB235160A; DE435401C; FR598170A

Description

March 24, 1925.v 1,531,204

J. MGLAU'GHLIN LoosE LEAF BINDER Filed June 6. 1924 WITNESSES Patented Mar. 24, 1925.

UNHEID STATES PATENT OFFICE.

JAMES 'McLAUGHL/IN, 0F CHICGOv ILLINOIS, ASSIGNOR TO STEEL BACK FILE & LEDGER C0., GF CHICAGO, ILLINOIS, A CORPORATION QF ILLINOIS.

LOOSE-.LEAF BIN-DER.

Application filed June 6, 1924.

To all whom 27; may @einem Be it known that I, JAMES lvIGLAuGHLiN, a citizen ,of the United States, and a resident of Chicago, in the countyk otl @ook andState of Illinois, lia-ve invented a new and linpiovel LOQSe-Lea/f Binder. of which the following is a full, clear, and exact description.

The present invention relates to new and useful improvements in loose leafl binders, and it `pertains more pantieularly to the hook-.oonstruetion thereof.

It is one of the primary objects of the invention to `construct l.a loose leaf hinder bool: in suoli a `manner that Ethei niechanisin `is not rigidly seoured to ythe cover at Lthe hack portion thereof. o

llt is a ffurther object of ,the inventlonto eonstnuct a ineohanisnrot' .this irigiture suoli a Inlnnner that vthe .several part-s xthereof .are not @Permanently ,secured together, and therefore, are capable ot detachment lWith respeot lto one another.

Slt Iarfijurther object ot theA `invention ,to construct theineehanisinin suoli a vmanner thetthe-stra-in Vincident tothe carrying of a plurality of detachable leaves is `distrihiited through the Covers rather ,than at :e P0111@ at vthe vsofmilled .baeli of the yhook.

lt is a further objeetotthe inventionto construct a "loose ,lent hinder ,eonstruction in suoli .a nimmer ,that the leafcarrying prongs `willppen sutlieiently to permit the leaves heine attached to oindetached therefrom hy alvortical :movement `rather than necessitating a movement oi the ,leaves through thenrc ol a ciroleasislthe conin'ion pi'inctiee.

iIt is `a itu-rthor object of theinvention to provide a loose ,leaf bool( ,eonstl'yetion in which thek several parts ot' the haelt are hingedly connectedy ,together .A in L such ,a inannery that the pintlel of the hinge Erigidly I retninssnoli partsin theirfopeizative relation to one,. aniother.k

iVVith thel`ahovei and other ohjec-tslin view, irferenee ishad to the accompanyingdreivings, in lWhich-- `VFigure `l isa detail planiviewoofagloose leefihook construetion inadein accordance with the presenti-nventiomand in itsA closed iwsition;

Fig. 2 isv ai.. similar view with. thepdeviee in .its openl position;

`Serial No. 7 18,340.

Fig. 3 is a similar .view With the prong hars removed and showing one of the back hars tolded over upon the cover; l

F L is a. ,det-ail transverse sectional view talien on the line 4 4 of Fig. l;

Fig. 5 .is a rdetail transverse sectional view showing the hack broken with the leaf prongs in open position;

Fig. 6 is adetail transverse sectional vieu' taken on the lineG-,Gof Fig. 3.

Referring inore particularly to the dran'- iligs, `the. reference `nunieral 10 designates a hookeover, Whichinay formed of leather or any other `suitable material. Carried hy eac-h haltol the cover on its inner tace, there is `a :facing or lining ll which is se cured .to the cover hy means ot glue lor the like.

is aforesaid, lthe reference `nuinher l0 designatestlie cover, and that sectionof the cover designated ,by Vthe reference numeral l2, is tlie'bacleot kthe hoolnand will hereinat'ter he sore'terred to. Thehaclt section `l2 ot' the cover iis reinforced `hy .ineans of two parallel. strips lef', suitahlyoseoiired thereto,

saidstrii'is*being spaced with respect toeach l 1 other, as designated liy Vthe reference nuineral .13. i i The `referenceA nun'ieral l5 op designates. hack hais, and ls'ueh hars 'are preferably constructed .troni inetal or other suitable rigid material. y.rlhes'e hack :hars are Aout yas at 16, to provide lugs i7, suclilugs standing upward, as shown at'lS in the drawings. These 'baeli hars .are ,secured .l to the cover hy means oit `nieinliers 19 of hoolihinders rlothor other suitable n'iaterial. and ,such inenihei's lflkextend under their respective ifaringsor linings f11,.as designated-hy the reference miniera] 2O in the drawings.y The inner.edgesl of these ineinhers ,arefseeiired to their respective hack hai' hy 'means of glue orI yintany othersuitableE inaniielyand the l'ghe ,inaftermentioned as formed onl the hack hars 1,5are assed. through such ineinhers 19,.asnnorefcgearly shown inFligs- 4, 5 and ,Each of these hack harsil; is formed on its inneredge with hinge lgnuelkles 22, and such hinge knuckles 22 areadapted lto aline with one another ,whenvthe hinge hars are folded inwardlyy of `thecover, or in position upon their respective stripsvlll.

The ,reference nuineral ,30 designates prong bans, and suclrprolng hars are suh- Lll) ' knuckles '22 aline with each other.

stantially channel-shaped in cross section. Carried by each ofthe prong bars is a plurality of prongs 31, and such prongs are adapted to interengage as designated by the reference numeral 32 in Fig. 1, when the mechanism is in its closed position. Each of the prong bars 3() is provided upon one of its side Walls With a flange 33, and these lianges 33 are adapted to engage beneath the lugs 17 of their respective back bars 15, as more: clearly shown in Figs. 4l and 5, the other side Wall of each of the prong bars being provided with a plurality of hinge knuckles 34,.

The hinge knuckles 22 carried by the back bars 15 and the hinge knuckles `34 carried by the prong bars 30, are so positioned with respect to each other that when the several parts of the mechanism are assembled, the knuckles will aline to form a continuous hinge of the type known as a piano hinge. IVhen the several knuckles are in alinement a hinge ypintle is passed therethrough and through the medium of this hinge pintle 35, the several parts will be retained in their operative position.

The reference numeral designates a suitable lock -of any desired form, and such lock is operated by means of a finger piece el. The particular construction of this locking mechanism, however, forms no part of the present invention, and for this reason the same is only conventionally shown.

In constructing a loose leaf binder in accordance with the present invention, the

flexible members 19 With the back bars at-` tached thereto are secured to the cover 10 beneath the inner `facings 11 thereof, as designated by the reference numeral 20. Afterthis has been done, the back bars are folded into such position that their hiige 1e .flanges 33 of the prong bars 30 are novv engaged beneath their respective lugs 17 of the back bars 15 and they are folded inwardly until the prongs 31 engage each other and the hinge knuckles 3-1 of the prong bars 30 aline with each other and the hinge knuckles of the back bars 15. After this has been accomplished, the hinge pintle 35 is inserted through the several alined` hinge knuckles to secure the several parts in operative relation.

If it is desired to disa-ssemble the mechanism, it is yonly necessary to remove the hinge pintle 35 and the prong bars 30 are then Vfreely removable lby a lateral movement sufficient to disengage their flanges 33 from beneath their respective lugs 17 ofthe back bars 15.l

From the foregoing it is apparent that the present invention provides a loose leaf binder mechanism in Which the several parts are rigidly secured together by means of the pintle of the hinge of the mechanism, and,

furthermore, it is apparent that the mechanism may be readily disassembled by a removal of said hinge pintle.

It will be further noted that by a construction such as heretofore described, the strain incident to the` opening and closing of the leaf-carrying prongs, as Well as the strain imposed thereon by the leaves carried thereby, is distributed through the covers.

What is claimed is:

1. In a loose leaf binder, a cover, a plurality of back bars hingedly connected to the cover, a prong bar carried by each of said back bars, a plurality of hinge knuckles formed on said back bars and on said prong bars, said hinge knuckles-being adapted to aline With each other, and a hinge pintle adapted to pass through saidl alined hinge knuckles for securing the prong 'bars 'in hinged relation and to their respective back bars.

2. In a loose leaf binder construction, a cover, a pair of back bars carried by the cover, and a prong bar removably associated With each of Said back bars.

3. A loose leaf binder back construction, comprising a cover member, a pair of rigid elements carried by said cover member and constituting back bars, a prong bar carried by each of said back bars, and a common means for hingedly connecting and securing said back bars and said prong bars together.

t. In a loose leaf binder construction, a cover, a plurality of back bars carried by the cover, a plurality of prong bars associated With the back bars and having interengagement therewith, each of said prong bars being removable from its respective back bar by movement laterally thereof-and means for preventing lateral movement of the prong bars relative to their respective back bars, said last-mentioned means comprising a hinge pivotally connecting the prong bars together.

A4 loose leaf binder construction, comprising in combination With a cover, a plurality of rigid elements carried thereby, a plurality of lugs struck from each of said rigid elements, a plurality of hinge knuckles carried by each of said rigid elements, a plurality of prong bars, a flange associated with each of said prong bars and adapted to engage beneath the lugs of its respective rigid element, hinge knuckles formed on each ofthe prong bars and adapted to aline With each other and With the hinge knuckles formed on the rigid elements, and apintle adapted to be passed through the hinge knuckles of both the rigid elements and the prong bars for hingedly connecting the rigid elements and the prong bars together.

G. A loose leaf binder back construction comprising a cover member, a plurality of rigid members carried thereby and constituting baok barshingetllyconnected to the cover member, a. plurality of alining hinge i knucklescarried said back bars, a plurality of prong bars,hinge knuckles carried fen ityof back bars carried by said cover and thereby and adapted to aline 'with the knuckles olf the .back bars, and a pintle passing through said alined hinge knuckles and forming means for retainingthe back bars and prong bars in assembled'relation.

7. In a loose leaf binder, a cover, a pluralin parallel relation to each other, a plurality of upstanding lugs carried by said back bars, a prong bai-[adapted for attachment to each of said back bars, a flange formed on each of said prong bars and adapted to engage beneath the lugs of its respective back bar, and means'for securing the back bars ysaid rigid back bars together.

JAMES MCLAUGHLIN.