US1691257A - Binder for loose leaves - Google Patents

Description

Nov. 13, 1928. 1,691,257

w. H. SMITH BINDER FOR LOOSE LEAVES Filed Aug. 2, 1926 2 Sheets-Sheet 1 I ATTORN EY Nov. 13, 1928.

W. H. SMITH BINDER FOR LOOSE LEAVES Filed Aug. 2, 1926 2 Sheets-Sheet Patented Nov. 13, 1928.

WILLIAM E. SMITH, OF SAN FRANCISCO, CALIFORNIA.

BINDER FOR LOOSE LEAVES.

Application filed August 2, 1926. Serial No. 126,415.

This invention relates to improvements in binders for loose leaves, and more particularly to transfer binders, and consists of a novel construction and combination of the parts. Among the objects of this invention, are to produce a binder in this class, that exposes no exterior metal parts liable to injure the hands of the operator or scratch and mar polished desk tops upon which the bound books may be laid; that will present no protruding parts upon any of the exterior surfaces of the binding to interfere with its compact storage in the minimum of space or inconvenience in inserting and withdrawing it from between other volumes of similar nature; that may be cheaply and conveniently produced and that is easily adaptable to the binding of sales sheets, bills of lading, stock records, proof sheets, invoices, ledger sheets, and other perforated sheets used, and known as loose leaf record sheets; and that is easily loaded with sheets'to be bound w1thoutextraneous mechanicalaids. jects and advantages will appear as this description progresses.

In this specification and the annexed drawings, the invention is disclosed in the form I considered the best, but I do not wish to be understood as limiting the invention" to this form, as it may be embodied in other forms,

. and it is also to be understood that in and by the claims following the description it is desired to cover the invention in whatsoever form it may be embodied.

ings, Figure 1 is a side elevation of a binder constructed in'aceordance with this 1nvention, one of the binding posts being shown in fragmentary section and extending through perforations intthe sheets,=to form the bound back of the book; the mass of leaves are indicated in outline by the dotted lines. Figure 2 is a fragmentary perspective view of the lower cover, partiall broken away to show the construction oft 1e cover and the application of the kraft paper tube and ferrule adapter to fit various sizes of leaf perforations. Figure 3 is a plan View. of the inside of a cover in the process of fabrication, in ac- Figure 4 is an enlarged detail edge view of the same after completion. The channel is partially broken away through the perfora- Other ob I In the accompanying one sheet of draw cordance with the method of this invention.

binding fabric 4- is glued to the outer surface of the board and lapped over the outer ends and the sides as at 5, and glued tothe inner surface of the board. The binding 45 and the folds 5, are extended beyond the back edge of the board and a strip of sheet metal 6, is inserted with its ends under the folds 5, and its edge 7 parallel withand spaced from the edge 8 of the backingboardcover, so that the cover and fold at hinge strip at 9.

The further extensionsof the binding 4:, are then glued together to form a double thickness of the fabric, enclosing the strip of, metal 6, and extending around the outer edge 10 of the metal strip 6 and glued, to en-' tirely enclose the metal strip, and terminates and 5 form a flexible as at 11 making a double thickness at the hinge 9. While the metal strip'is still flat it is inserted between the dies of a punching machine (see Figure 3) equipped with proper gages to determine the exact centers between the perforations 12','which are cut entirely through the metal strip and theoverlying binding 4, enclosing the same. -After the punching operation the metal strip is in sorted between the jaws of a breaker and it is bent back upon itself at 13, to form a U shaped back edge for the cover, the outer dimensions of which are substantially the same as the thickness of the cover, and forming the channel 14, the edge 10 terminating adja- I cent to the line of the hinge 9. The perforations 12, thus appear only upon the inner flanges of the channels. The inner surfaces of thecovers are finished bythe addition of a sheet of heavy paperl, or other suitable material pasted to the cover and overlapping the folds 5 and the ends 11. As previously stated bothfcovers 1 and 2 identical in shape and construction and: may be'of any diperforations 12 are spaced apart any mensions to suit standard or special sizes of loose leaves to be bound therebetween.

The binder posts consist of two lengths of tubing 15-16 telescoping snugly one within the other,'and both flanged out to engage the integral heads 18. The tube 15 has a hole at 19 in the body thereof, adjacent its end, with the slot 20 opposite thereto. The pawl21 is confined within this tube with its toothed sur face adapted to protrude through said slot 20. The pawl is retained in position bythe spring 22 confined between the pawl 21 and a plug in the end of the tube 15. When the tubes 15-16 are telescoped the teeth of the pawl 21 contact the inner surface of the tube 16 without resistance, but when it is attempted to separate the tubes, the teeth'of the pawl engage the inner surface of the tube 16, locking the tubes together, forming in effecta positive clutch.

The perforations 12have the enlargements 12 opening therefrom, adapted to pass the heads 18 of the posts. The posts 15-16 are then forced into the smaller openings 12 and are firmly held by the heads 1.8, within the channel 1 1 formed by the metal strip 6. These of the standard distances, ranging from 2 to '7 inches between centers that are standard practice, or they may be spaced apart any desired distance;

This invention operates substantially as follows: The covers 1 and 2 are laid face up, as shown in Figure 2, the heads 18 of the various binder post-s 15*16 are inserted in the openings 12 in thecovers. The cover 1 is then laid aside for the moment and the perforated leaves X are threaded onto the posts in the cover 2-, up to near the topof the posts 15; then the remaining leaves. up to the capacity of the posts are threaded onto the posts 16 that are'in the'cover 1. The cover 1 is theninverted over the cover 2 and the posts i the cover 1 are telescoped overthe posts in the cover '2, the telescoping tubular posts 15-16 extending through the perforations in the leaves X. forced down over the lower posts 15 the two sections are locked by the clutch 21, against retraction. The necessary pressure is then exerted on the top cover, opposite the posts, to cause them to compress the leavesbetween to the desired extent,-which elfectually binds all of the leaves into a single volume having a smooth exterior covered by the covers1and 2 and securely and permanently bound together at the back by the posts 15 -16. The coversl and 2 freely swing ontheir respective hinges at 9 to permit access to the leaves bound between the covers.

To add a proper finish to the back of the book, between the covers 1 and 2 I provide. the overlapping backlng sheets 23and 24,

scored longitudinally at the points 25 to permitof easyand accurate bendingat this As the-top posts 16 are" point and forming the right angle flange 26 thereon. This backing is preferably made of heavy kraft paper, guinined on one side, the two halves of the backing being threaded onto the posts in their respective covers 1 and'2, and projecting outward past the ends 13 thereof,until the binding of the leaves 1i is complete. The inner surface of the backing 23 is moistened and forced against the outer surface of the backing, 2%, pressure against the backing forcing it against the end of the bound sheet-s causes the backing sheets 23 and 24. to adhere and form a permanent surface for thereception of tubulated matter indicating the contents of the book.

The various manufacturers of the so called loose leaf systems of bookkeeping and record sheets, adopt certain arbitrary standards as to the size and shape of the perforations in the binding margins of the sheets, the diameters of such perforations ranging from the small diameter of the posts 15-16 up to one-half an inch, Since it is impracticable to meet these variations in transfer binders within the price of such, recourse is" had to the expedient shown in Figure 2, in which a fragmentary section of the paper tube 27 made of heavy kraft paper rolled upon itself to lit the size of the perforation in the sheet to be filled and snuglyfit over the posts 15-46 is chosen andcut to a-length equal to'the depth of sheets, see Fig. 1, to be bound between the covers 1 and 2; in this manner cheaply adapting.this invention to the wide range of conditions to be met in the perforations of loose leaf-sheets at present upon the market. I

"While the form of posts shown in the drawlugs and above described is at present preferred,because of its simplicity, adaptability and cheapness of production, there are other formsof'posts at present uponthe market,

such as, parallel semi-circular ratchet-posts and other'forms of telescoping posts, in which one-half of the post is tubular to receive the shank of the complementary post,

telescoping therein and secured'by various 1.

forms of clutches to prevent withdrawal or separation of the post sections from ,each other, as well as wires and other connecting means adaptable to this invention.

For convenience in withdrawing a bound volume from among others on the shelves, the length of tape 26 is glued totheinner flange with itsend folded over the edge 10 and terminating within the channel 1 1, and its opposite end extending beneath and beyond the backing to form the tab8l, to be grasped by the operator in withdrawing the volume. Having thus described this invention, what Iclaim' and desire to secure by Letters Pat' cut is? 1 LA transfer binder comprising opposed covers having channels hinged to the ed thereof; binding means extending between said channels and adapted to engage the innor plates thereof and terminating Within said channels; backing sheets attached to each of said covers adapted to be overlapped and attached to each other when the binder is filled; and a strip of tape having an end secured to one of said covers protruding beyond said binder.

2. A transfer binder comprising opposed covers having channels hinged to the edges thereof; binding means extending between said channelsvand adapted to engage the inner plates thereof and terminating within said channels; backing sheets attached to each of said covers adapted to be overlapped and attached to each other when the binder is filled; and a strip of tape having an end secured to one of said covers protruding beyondsaid binder.

3. A cover for transfer binders comprising a stiffening board; a binding fabric having its lateral edges folded over the edges of said board and extending beyond one end of said board to form a hinge; a metal channel hinged to said board by said binding fabric, the inner plate of said channel being per'lo rated; and a binder post having a shank pass-- ing through said perforation in and a head engaging under, said plate' 4:. A cover for transfer binders comprising a stiffening board; a binding fabric having its lateral edges folded over the edges of said board and extending beyond one end of said board to form a hinge; a strip of metal enclosed wlthln said folded edges and bent back upon itself to form a channel, one plate of 5. A cover for transfer binders comprising a stiffening board; a binding fabric having its lateral edges folded over the edges of said board and extending beyond one end of said board to form a hinge; a strip of metal enclosed within said folded edges and bent back upon itself to form a channel flush with the thickness of said cover said binding fabric terminating at the open edge of said channel.

6. A transferbinder comprising opposed covers each having a channel hinged to an edge thereof; binding means extending between said channels and adapted to engage the inner plates thereof and terminating within said channels; flexible adhesive backing sheets attached to eachof said covers and adapted to be overlapped with respect to each other when the binder is filled.

7. The method of forming covers for transfer binders comprising folding the adhesive edges of a binding fabric over the lateral dges of a stiffening board so that it extends beyond the end of said board; inserting a transverse stripof metal beneath said folded edges and spaced away from the end of 'said board; perforating said strip and fabric to engage binder posts; and then bending said strip back upon itself to overlie its unperforated part. 7 v

In testimony whereof I have hereunto affixed my signature.

WILLIAM H. SMITH.

Images