US1403303A

US1403303A - Loose-leaf dinder

Info

Publication number: US1403303A
Application number: US310434A
Authority: US
Inventors: Bernard R Dutcher
Original assignee: GRAHAM CHISHOLM Co
Current assignee: GRAHAM CHISHOLM Co; GRAHAM-CHISHOLM Co
Priority date: 1919-07-12
Filing date: 1919-07-12
Publication date: 1922-01-10
Anticipated expiration: 1939-01-10

Description

B. R. DUTCHEH.

LOOSE LEAF BINDER.

APPLlcAloN man 1,uLY12, 1919.

Patented Jan. 1U, 1922.

courant?, or new Yoan,

i i to a 'LOOSE-LEAF BEN Application filed July l2,

To @ZZ whom t may concern Be it known that l, EnnNAno DUTor-inn, a citizen of the United States, residing in New York, in the county ot New York and State oi New York, have invented certain new and useful improvements in Loose-Leaf Binders, ot which the following is a specifiv cation.

My present invention relates to an improvement in loose-leaf binders, the object ot the invention being to provide an nnproved universal type of post gripping device.

VAnother object ot' my invention is to prothey are separable and are economical to manufacture, may be utilized to cooperate in operative function without too much precision in the manufacture thereof.

Another object ot my invention is to provide means whereby the binding posts may be readily gripped and held upright in vertical position thereby obviating the showing of one or Aboth ot the binder posts when gripping the same in the binder member.

rlhese and other advantages will appear from the subjoincd specification, and by reitcrence to the drawings herewith, in which,-

Figure l is a perspective view of my device;

Figure 2 is a fragmentary longitudinal sectional view thereof;

Figure 3 is a transverse sectional view.

Figure eiis a 'fragmentary plan view oiC the lool member;`

Figure 5 is a partial plan view of the "on: plete locking element, and

Figure 6 is a side elevation thereof.

in my present type of device, l obtain an improved form of binder menber such as is used in loose-leaf hinders, inasmuch as l lave done away with two heretofore objectionable faults in this class ot binder inember, one et' the said faults being duo to the tact that when binder posts are initiall locked into operative position, there is tendency iior them to throw ash-ev thorW coming` out et registration with the cooperating pertorations in the loose-leaf she^ts that are used therewith, and in the opposite binder member.

By reterring to figure l, the binder meinher generally denoted by 3 is provided w'th Specification of Letters atent.

vice composite binder means, which, while Patented l an. MP, i922.

1919. Serial No. StG/i3d.

suitable oritlces e and 5 in the outer casing thereof wherein to receive the customary binding posts, l and 2, which are shown in dotted lines, the ends 6 and 7 of the binder member being formed so as to become closures for the binder member, thereby forma smooth-ended device ot pleasing appearance. The edges oft the orhices a and 5 form locking shoulders against which the posts l and 2 are locked, as will be explained.

ln the construction of my device, the casing generally denoted by S, of the binder member 3 is made preferably of rolled light gage sheet metal, and has formed therein a rectangular chamber 9 running the entire length thereof.

lnto this chamber is placed a suitable clamp 10, which is utilized for the purpose of drawing up and locking or clamping the binder posts l and 2 in operative position.

This clamp bar is so made that its gripping portions thereoic are more or less resilient, and it is so made that the locking aws ll thereof, when the clamp bar lO is in operative position, are constructed as to accommodate themselves to a slight variability in the registration position and diameter ot the members l and 2. rlhis will now be more described in detail.

liy referring to Fi ot the locking ends view. it will be note ll are formed by two iL-ll, the inner Jfaces of which are inclined toward the center, or are angular, and that the clamp bar is slit in opposite directions as at l2 and l2 suil'icient distance away trom the 'portions 9 as to allow a certain amount oi give, or resiliency, to the loclring faces ll. ln order to accel tuate this resilient or giving action of the iaws ll, l have further reniovec the material on either side ot the liaws ll as at 1S thereby malring the jaws much narrower than their normal width it. they were lett uncut, keeping suiiicient stmaojth therein to properly perform the di v required of them, but leaving them S lli v re ll, which shows one i my device in plan d that the locking jaws opposing members gu o yientlji7 resilient to accommodate themse1 to the usual i iis-registration and varying diameter ot the coacting parts as would occur in ordinary manuiacture.

i ne ici Doing is oetcei ocmonstia ,d ii we refer llioure which shows specifically7 a LJ L .4

full sized clamping bar which is broken away in the middle in order to shorten the length thereof. While the discrepancies here set forth are extremely exaggerated, this is purposely done in order to bring out the featudes that exist in a minor way in the article themselves. Y

Dimension A is the normal operative distance between the centers of the locking openings lei-14 of the clamping bar, B is the functioning location of two bushing members l5- 15, which will be later described, and it will be noted that Athe left hand bushing member 15 is well forward and out of pitch, thus making a discrepancy between the two center distances itk-B. It

will also be noted that while the right hand bushing member 15 is in substantial Contact with the jaws 11 of the bar 10, that the left hand member 15 has moved forward to the left a certain distance, but is also in contact with its cooperating locking jaws 11, expanding the same out of their normal positions asl may be ascertained by referring to the slot 12 and comparing it with other slots 12. ln other words, the two locking jaws 11 on the left hand side of the bar as shown in Figure 5 have expanded slightly'in order to accommodate for the difference between the centers A-B, which difference may be caused by variationl in diameter of the bushings or their lack of registration or both.

The bushing membersl are utilized for forming seat or gripping members for the reception of the binder posts 1 and 2, and the bushings are of the same height as the height of the chamber 9 formed between the opposing walls of the casing 8 and are a sliding fit therebetween. @b viously when these sliding bushing members are placed in the casing they cannot get out of position nor tilt, and at the same time their height forms a greater vertical @ripping area or surface for engaging the binder posts members than has heretofore been utilized in this kind of binder. These bushing members are loosely set into the openings 14 and are simply carried to and fro by the reciprocation of the lock bar 10 which is operated by means of the usual key, not shown, and the threaded key-shaiikl which is mounted in a threaded hole in a block 17 which is riveted or otherwise atlixed to the-casing member 8 in the usual manner.

The threaded member 16 has a cylindrical head 18 thereon which fits in a suitably formed head slot 19 in one end of the lock bai 10 so that upon rotation by means of a key member 16, the block 17 being held as described, the lock Ybar 10 is reciprocated to and fro as is customary in devices ofV this.

class.

ln the manufacture of devices of this type, it is obvious that errors must occur between the distances between centers A of the lock bar 10 and the corresponding openings 4t and 5 which are located in the casing 8, all of which openings are supposed, theoretically, to coincide in such a maniieias to properly engage the binding posts 8 when they are in operative engagement. As a matter Vof'fact, however, unless these members are assenr bled completely and all drilled together, it is seldom that there is surlicient precision registration between all of the cooperating locking openings to properly clamp the binding posts Vand hold them properly vertical. lllhere the holes e and 5 are placed in the easing by a separate operation and the corresponding holes 111 are placed in the bar 10V at different operations andY when the device is assembled and in use, there is always sure to be one of the binder post members which will receive nearly all of the binding pressure and the mate binding post would receive very little due to this discrepancy or lack of registration.

By means of the foregoingdescription of "the resilient j aw members 11 and the methods 1 ofV mounting the post-engaging bushing members therein, it is obvious that should the openings in the casing 8 and the lock bar member 10 beout of registration, the posts 1 and 2 maybe introduced therein and when locked will be properly engaged with a gripping lock owing to the slight giving of all of the aw members 11, each jaw member giving away slightly in accordance with its lack of registration with theV corresponding locking holes 4- and 5 in the casing mem-Y ber 8 and any discrepancy in the diameters of the post. members 1 and 2. f

lt will be obvious that the device will opcrate if the bushings 15 are eliminated since, in that case, the clamping will be effected on the posts.

I claim:

A clamp bar for loose leaf binders com.- prisihng, an elongated body provided with locking openings each'formed with converging locking jaws at one end, said .locking `iaws extending in the same direction ateach opening, both of said openingseach being continued at their opposite ends into alined slits. A y

A clamp bar for loose leaf binders comprising, an elongated body provided with locking openings each formed with a substantially semi-circular portion at one end and converging locking jaws at the other end, said locking jaws extending in the same direction at each opening, said openings each being` continued at opposite ends into alined slits. Y v

A clamp'bar for loose leaf binders comprising an elongated body provided with locking` openings each formed with a substantially semi-circular portion at one end and converging locking jaws at the other end, said locking jaws extending in the same direction at each opening, said openings each being; continued at opposite ends into alined slits, slits at opposite ends being of ongtli vitli the slit extending` ijaws longer than the slit er l inpfr rhe sen'ii-ciieular end.

d. ln combination, a binder member pvided with oriihices; a clamp member lniviin lockingl` openings; bushiii disposed in said clamp bar therein having` locking` openings approximately registering with said orifices and forming converging locking jaws and dividing the bar into pair oi resilient j ortions carrying the jaws; locking busl ings loosely disposed in said openings and engaged by said jaws; binder posts passing.;I through said bushings and oriiices; ai neans acting on said bar 'for pushing sa jaws into wedging engagement with said bushings.

7. in combination, a hollow binder member having` parallel spaced walls provided with registering loclring oriiices; a clamp bar between said walls and having locking` openings approximately registerino-` with said orifices and forming converging` ioclring jaws; locking bushings larger than and approximately co-axial with said orii'ices and loosely disposed in said locking openings and tangentially engaged on approi ately diametrically opposite sides by said converging jaws; binder posts passing throuo'h said b ishings, locking` openings and oriiices; and means acting on said bar for jaws into wedging locking engae said bushings,

8. ln combination, a binder member; bushings associated therewith; binder posts disposed in said bushings; and clamp meniber 'for locking said posts in said bu l 9. lin combination, a pair relativen iiovable members; bushings associated therewith; posts in said bushings and loclze l there in by relative movement oi said members.

l0. ln combination, o l i ider member provided with orifices; locking buslii a ated with said binder member; binder posts passing through said bushings and z and a movable clamp member posts in said bushings.

ll. ln combination, a hollow binder uienA ber provided with orifices; locking` bushings disposed in said binder member; binder posts assing through said bushings and orii'ices; and a clamp bar moi/'able within said vneinber i-'or bringingT about a locking; action between posts and bushings.

combination, binder member havpa efl walls provided with oriiices; loclrs di posed in said er member substantially in registration with. said oriiices; binder posts passing throng' saidI bushings d orifices; a'id a clamp movable between said walls for bringing about a locking action between said posts and said bushings and orifices.

i3. in combination, a hollow be haring two pairs of opp ahned with ot ier; a clamp bar disposed in said member and provided with locking openings each formed with locking jaws;

@non

b tn oil said openings being continuel at th ir opposite ends into alined slits; and loclrable elements loosely disposed in said openings orifices and eaiiying` separate locking portiens engageabie saidL jaws.

la in combination, hoilow binder meinber haring pairs oi opposed loc orihces alined with each other; amp bar therein iavino' locirino' openings an iroxnnateljt 13 r S. I ,1 registering w said oiinces and iorining converging locling jaws and each dividing ill a portion of the bai' into a pair oi resilient portions carrying Lhe jaws; and lockable elements loosely disposed in said openings and oriices and carryingv separate locking` portions engaged by said aws with wedging action.

l5. ln combination, a 'iollov binder member having pairs of opposed locking criticos registering with each other; a 'lamp bar therein having 'ic-chino openings approximately registering witi saic. orifices and convergino` looking jaws each forming aw'i'. e# im'# -f- Livioing a.. poition oi ne oai into a pali oi resilient porti iis carrying the jaws; loclrable elements loosely disposed in said open ings and orifices and carrying` lo portions engaged by said jaws; and means acton the for moving said ws into wedging engagement with said portions.

16. ln combination, a hollow binder ber having pairs oil opposed orifices alined with each other; clamp bar disposed in said member and provided with locking,`

openings each formed with converging loci;- ing' jaws at one end, loclri :j jaws e5:- tendingY in 'the directimA each opening, both of said dieii be continued t Lheir opposite end o alined slits;r and a loclable elements loosely disposed iii said openings and orinces and carrying locking pai-ts engag able by said aws with a wedging engagement.

l?. in combination, a hollow binder ineinber l aving pairs o:

opposed orifices aliiied with each other; a

clamp bar disposed in said member and provided with locking openings each formed with converging3 lock; ing jaws at one end, said locking jaws extending in the saine direction at each opening, both 0I" said openings being continued at their opposite ends into alined slits; lock-y able elements loosely disposed in vsaid open-