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Publication numberUS2320101 A
Publication typeGrant
Publication dateMay 25, 1943
Filing dateSep 24, 1942
Priority dateSep 24, 1942
Publication numberUS 2320101 A, US 2320101A, US-A-2320101, US2320101 A, US2320101A
InventorsSchade Frank Stanley
Original AssigneeNat Blank Book Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Expansible post binder
US 2320101 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

May 25,1943. F. 5. scHADE 2,320,101

EXPANSI'BLE POST BINDER Filed Sept. 24. 1942 INVENTOR fkq/m STA/v4 Er Sal/A0:

ATTORNEYS Patented May 25, 1943 EXPANSIBLE POST BINDER Frank Stanley Schade, Holyoke,

Mass., assignor to National Blank Book Company, Holyoke, Mass, a corporation of Massachusetts Application September 24, 1942, Serial N 0. 459,515

3 Claims.

This invention relates to an improved loose leaf binder of the post binder type. The main features of improvement are found in the coordinated details of construction. By the new construction the binder can be most conveniently manufactured at low cost and at the same time furnish the binder in better form for use.

7 I will disclose by invention by the description of its preferred form shown in the drawing, in which Fig. 1 is a View in small scale of a unit of manufacture, generallyknown as a book binding case, consisting of two covers, aback portion, and hinges joining covers and back portion;

Fig. 2 is a view showing two complementary parts to be assembled with the material of Fig. r Fig. 3 shows a stick to be assembled with one of the parts of Fig. 2; Fig. 4 is a section on line 4-4 of Fig. 5; it shows an edge View of the parts of Figs. 1 to 3 assembled together after they have been worked up for that purpose, and this assembly view also shows additional parts of Fig. 5 with the binding. posts in the assembly;

Fig 5 is a plan View of the Fig. 4 assembly indicating how some of the parts have been worked up for such assembly; and

Fig. 6 is a detail view to supplement Fig. 5.

The whole unit of Fig. l is made by known automatic case making machines. This unit commonly made by such machines is generally known as a binding case unit. It consists of two covers I and 2, joined by two hinges 3 and 4, to a back panel portion 5. It is customary to make the back panel and the covers,'each out of a panel of cardboard (to join these panels by a pasted cloth strip to form the hinges) and to paste a single sheet 7, of decorative covering material, over the outside of all panels, with edges 8 turned over and pasted down as indicated. This sheet .l'helps form hinges but I omit the cloth hinge strip commonly pasted on the inside to cooperate with sheet I. I later provide cooperating hinge strips as I will explain. The structure of Fig. 1, as I use it, consists only of the three cardboard panels I, 5, 2, and the single sheet 7 which joins them. The whole of it is formed on a case making machine.

I preferably make my unit of Fig. 1 the way just described on account of its low cost and convenience. But I do not use the unit as a book binding case per se. And I proportion the back panel portion 5 of the unit so that when out in half longitudinally, each half is of a width suitable for aflange in my final assembly. When out in half on the line 9, two hinged flange portions 5 and 5" are. made for coordinated assembly with the parts of Fig. 2.

Duplicate parts, such as the right-hand part of Fig. 2, are made originally as one unit just like the unit of Fig. 1, except for dimensions. Then suchunit is cut in half along the middle line of the back portion. parts, each consisting of the same structure as that shown at the right in Fig. 2. Its duplicate'is used for another book. It consists of panels 10 and I I, mainly of cardboard, hinged together by a single sheet of covering material turned over the edges and pasted down.

The left-hand part of Fig. 2 consists of panel l2 mainly of cardboard with a single sheet of covering material I3 as a backing'on it and extending beyond one long side. Sheet I3 is shown turned over the three sides of the cardboard and pasted down; the extension portion l5 of sheet I3 is not shown turned at the edges. Its edges are not turned until the stick i l of Fig. 3 is applied.

The stick M with rectangular cross-section is applied flatwise against extension portion l5 of sheet [3. Then the latter has its margins turned over and pasted down on said stick. Then ortion I5, hinged to panel I2, is stapled or other wise made secure to flange 5'. The result is indicated in Fig. 4. A single cloth hinge strip 3, best shown in Fig. 5, is pasted on panell, across hinge 3 to reenforce and help make that hinge; strip 3 is pasted also on one side of panel 5, against the broad side of stick [4, or its covering; across the top edge of stick M, against the last broad side of the stick; across its hinge line, to help make and reenforce that hinge with panel l2; and against the inside face of panel l2. A similar cloth hinge strip 4' is pasted against the inside face of panel In, panel II, to help make the hinge between these two panels, preferably stapled together, over the top edges of panels II and 5", down the inside face of panel 5" across its hinge line 4', to help make the hinge at that line, and finally pasted on the inside margin of panel 2, see Figs. 4 and 5.

At any convenient time the holes are made to mount binding posts I8. These are preferably plastic posts which can be nailed in stick I4 from the top,

From the drawing it will be seen that the portions 5" and 5" which were originally made as parts of a book binding case, have by rearrangement been converted to hinged flanges, one for each cover I and 2. The complementary parts of Fig. 2, one carrying the reenforcing stick M of Fig. 3, have been joined to flanges 5' and. 5". preferably by stapling, and in addition by pasting on the cloth hinge strips 3' and 4'. The posts have been mounted in the flanges in the way indicated.

The final result, seen in Figs. 4 and 5, is an. expansible back post binder. The posts |8-, being tubular, are of the expansible type. Those carried by the flange, reenforced by stick [4, are adapted to carry either a comparatively small The result is two i The construction of expansible posts such as I8 is well known and I have not shown their detail. It will be understood that threaded ends of posts l8 may lengthen and shorten them. That is to say, the end of post l8, seen as [8 in Fig. 4, may be adjustably threaded into post i8 by a shank long enough, when turned in and out, to expand and contract the overall post length when desired. Such construction per se is very well known. The post tubes 18' telescope with posts I8. panded or contracted by use of slots 20 and buttons 21, the posts l8 may be lengthened or contracted accordingly. The ends of posts l8 are seen at I8" in Fig. 6. A circumferential slot, just back of the end of be straddled by keeper strip 22. The latter has slots guiding it by means of the shanks of rivets 23. It will be seen that telescoping posts 18 are carried by strip 24. The latter with its posts is removable. It is normally held in place by 3,

posts I8 entering the bore of tubes l8. When the ends of post tubes i8 protrude through the right-hand flange, see Fig. 4, they are locked by sliding keeper strip 22, as in Fig, 6. In such a case post l8, with its head er strip 22, is conveniently used to fasten the post-carrying strip 24 in place. Other means for such a purpose could be used just so long as strip 24 is suitably mounted on the flange.

The binder disclosed is of low cost manufacture. It is adapted for equaling the efliciency in use of more expensive binders and, in respect to an additional hinging action for the postcarrying flanges, to improve the effioiency for use. In my binder the flange with stick I4 can carry extended posts and a very thick pack, and it can hinge to lay the pack flatwise on one cover while the posts are vertical and the book wide open on a desk. This facilitates sheet arrangement work in the binder when the strip 24 is 7 applied with its posts and the whole is then assembled with the right-hand cover on its flange, as already described.

It will be recognized that this new binder is one to be compared to present-day commercial post binders of the expansible back type. Such prior binders commonly have their two back portions and their post-carrying flanges made of very stiff sheet metal parts. monly no hinge between one flange and its adjacent back portion but the two parts made up in permanent angle form. My new binder not only has the extra hinge, but the hinge construction is coordinated to help mount the flange and tie it into the binder construction. A general feature of my binder is that it is particularly Well adapted to make without using metal. But its construction in respect to both cost and efficiency does not sacrifice anything by doing without metal. In fact, it is an improved binder compared to prior art metal ones.

I claim:

Thus, as the back panel is exeach post, is adapted to l8 engaged by keep- There is com- 1. An expansible back post binder which consists in combination of cover portions having hinged marginal flanges, separate back portions having hinged marginal flanges, each back portion having its marginal flange attached to the marginal flange of its adjacent cover whereby a composite laminated flange is provided for carrying' posts at each side of the binder, each said composite flange being hinged both to its adjacent back portion and its adjacent cover, posts carried by said composite flanges, and means holding the two back portions for limited goontracting and expanding movements.

2. A binder construction which consists in combination of a stiff cover, provided with a hinged flange, a stiff back portion made like the cover and provided with a hinged flange, said two flanges being fastened together in laminated arrangement with a reenforcing stiff stick of non-metallic material as wood to make a composite post-holding flange, a second stiflf cover provided with a hinged flange, a second stiff back portion made like the cover and provided with a flange laminated and fastened to the flange of the second cover, the covers and back portions and flanges of each being hinged together as aforesaid by strips of flexible material which are part of the same material making up the parts which are hinged together, posts mounted in said composite flanges, guiding means adapted for controlling the back portions when they are moved relatively to expand and contract the capacity of the binder.

3. A binder construction which includes in combination two covers and two flanges, each cover including a cardboard body and a single sheet of flexible covering material extended beyond one margin, each flange including a cardboard body covered by the same single sheet as it extends from one of the covers, said material forming a flexible hinge between each cover and one of the flanges, two back panels each made with a cardboard body and a single sheet of flexible covering material extending beyond one margin, two flanges each made of stiff material,

one flange bound to one back panel and one flange bound to the other back panel, each one being bound by the covering material extending beyond its back panel whereby flexible hinges are provided between each back panel and its at tached flange, one flange of one cover being fastened in laminated formation to one flange of a back panel, and the other cover flange being fastened to the other back panel flange in the same fashion, cloth binding and hinging strips, one for each cover and its fastened back panel, said strips being fastened on the cover, extending across its hinge line with the flange attached to such cover, extending over both sides and the top of the adjacent laminated flange construction, across the hinge between such construction and adjacent back panel to form part of the hinge construction and finally against the back panel, the cloth strip being fastened down through such extension to tie the parts together,

posts mounted on said laminated flange c'onstructions and said back panels being adapted for sliding movements to increase and decrease the capacity of the binder, all adapted to make a low cost and efficient expansible back post binder.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4056326 *Aug 6, 1975Nov 1, 1977Crawford Industries, Inc.Loose leaf binder
U.S. Classification402/48, 402/74, 402/75
International ClassificationB42F13/28
Cooperative ClassificationB42F13/28
European ClassificationB42F13/28