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Publication numberUS1533442 A
Publication typeGrant
Publication dateApr 14, 1925
Filing dateJun 18, 1921
Priority dateJun 18, 1921
Publication numberUS 1533442 A, US 1533442A, US-A-1533442, US1533442 A, US1533442A
InventorsArthur R Meyer, Elmer A Reed
Original AssigneeWilson Jones Loose Leaf Compan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mechanism for shifting binder posts
US 1533442 A
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Description  (OCR text may contain errors)

April 14, 1925.

1,533,442 5 A. R. MEYER ET AL MECHANISM FOR SHIFTING BINPER POSTS Filed June 18, 1921 2 Sheets-Sheet 1 I Z ZE Z '3, 1 /:5

5 m 1h. H L4\ April 14, 1925.

A. R MEYER ET AL IECHANISH FOR SHIFTIN BINDER POSTS I u r i f ilhmll i Q Filed June 18. .1921

2 Sheets-Sheet 2 Patented Apr. 14, 1925.





Application filed June 18,- 1921. Serial No. 478,491.

To all whom it may concern:

Be it known that we, ARTHUR R. MEYER and ELMER A. REED, citizens of the United States, and residents of the city of Chicago, in the county of Cook and State of Ilhnois, have invented certain new and useful Im rovements in a Mechanism for Shifting ldinder Posts; and we do hereby declare that the following is a fulhclear, and exact description of the same, reference being had to the] accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

Our invention relates to loose leaf binders in which leaves or pages can 'be readily inserted and removed; and in which the said leaves are adapted to be locked by shiftable posts as set forth in our copending application Serial No. 478,488, of which the device in this application representsan improvement. i

It is an object of this invention to provide a practical and simple mechanism whereby the shiftable parts for locking and unlocking the leaves of the binder may be readily operated.

With these and other objects in view which will become apparent in the following description and disclosures, our invention comprises the novel features of con: struction hereinafter described and more specifically defined in the appended claims.

In the accompanying drawings which illustrate a preferred embodiment of our invention and in which similar reference characters refer to similar features in the different views:

Figure 1 is a front plan view of our im proved binder showing the posts and actuating mechanism interiorly thereof.

Figure 2 is a section on line 22 of Figure 1, with a part of the cover omitted.

Figure 3 is an outer elevational view of the lower side plate taken substantially on line 3-3 of Figure 4.

Figure 4 is a section on the line 44 of Figure 1. v

Figure 5 is a fragmentary section taken on the line 55 of Figurel.

Figure 6 is a section through the binder showing the post-actuating means and the manner of securing the leaves in the binder.

Figure 7 is a plan view of the type of leaf adapted to be used in the binder.

Figure 8 is a fragmentary section on the line 8-8 of Figure 4.

As shown on the drawings:

The binder to which our invention is ap- 1pllied comprises a )air of side walls 1 each aving an inward y directed flange l atright angles thereto. which slidin 1y rests upon the back or base plate 2 which is bent or crimped at its ends over the ends of said flanges to sheathe the same as shown in F igure 1. The covers 3 are hinged to the upper ends of the side walls 1, and these walls 1 and covers are movable toward and from each other by means of a screw member 4.- extending lon itudinally of the binder and anchored to the back plate 2 by means of bearing brackets 5, and having reversely threaded sections upon which nuts or shiftable elements 6 are adjustable. A pair of links 7 are pivotally connected to each nut 6 and extend in divergent relation to the side walls 1 to which they areattached, so that upon rotation of the screw 4: the side walls 1 are moved either apart to open the binder, or together to close the binder.

The leaves of the binder are retained in place by means of a plurality of relatively slidable posts 8 and 9 which in the present instance telescope one within the other. These posts. are mounted upon plate members 10 which are in'turn slidingly supported upon the side walls 1 of the binder atthe proper heights. Each plate member 10 is slidingly supported on an inner wall. 1 of the binder by means of a plurality of headed projections or studs 11 projecting therefrom and extending through slots 12 in said side walls with the heads on the studs in slidable engagement with the outer surface of said wall and overlapping said slots. The length of these slots may govern the length of longitudinal movement of the plate members 10 and hence that of the posts carried thereby, if desirable. This structure, however, forms no part of our present invention except in so far as it is modified or co-acts with our present invention, since the same is described and claimed in our copending' application. a

This invention relates more directly to means for shifting or operating the plate members 10, and contemplates mechanism for simultaneously shifting all the plate members at a single operation for locking 7 upon the ,bolts 14 operable in either direction. The plate members 10 may be variously connected to the screw memher 4. A preferable arrangement, however,

consists in using four plate members 10 and connecting each one to a link member 7. Accordingly, the two plate members 10 connected to one nut or shiftable element 6 will be shifted as a pair in one direction, while the two plate members 10 connected to the other nut or shiftable elements 6, will be shifted as a pair in the opposite direction operation of the screw member 4.

One method of connecting the plate-members 10 to the links 7 has been illustrated. As shown in Figures 2 and 4, each plate member is provided with a downwardly extending leg having an integral lug 13 that.

is connected by a bolt or rivet 14 with a link 7, and to prevent the downwardly extending leg portion from being bent inwardly or distorted when the sides of the binder are brought together in the act of closing the same and also for properly limiting the movements of the posts and providing a sliding hinge or lost motion connection, a bracket 16 of angle shape having a'horizontal slotted flange, and a vertical flange is provided to slidably anchor each 'plate member 10 to the side walls 1. The vertical flanges of said brackets lie closely adj acent the outer surface oftheside walls; the horizontal fiangesextending through slots in said side walls in position to have the the slots thereof as shown in Flgures 1, 3 and 4. The slots in the horizontal flanges of the brackets 16 should be equal to the length of the movement of the slidable plates 10 and limit the movement thereof at the locking and unlocking position of the posts. 7

As previously pointed out, the plate members 1O areconnected to move in pairs in opposite directions, and each such pair supports one or more pairs of relatively slidable posts 8 and 9. In the present instance, each pair of plate members supports two pairs of posts for cooperating with suitably formed slots such as the mushroom or T- shapedslots in the loose leaves illustrated in Figures 6 and 7.

The operation is as follows:

Assuming that the binder is open and that the posts are in unlocking position as shown in full lines in Figure 6 in which position it is obvious that a leaf may be removed or in- -1,ess,44a

sorted. Whenit is desired to lock the leaves 1n the bmder, it is only necessa to apply a key to the. polygonal end17 o the screw element 4 and turn the same in the proper direction to move the nuts or shiftable members 6 toward each other. This operation will move the posts which are connectedto said nuts into the longitudinal portions of the slots as shown in dotted lines in Figure 6 and securely lock the leaves against transverse or longitudinal movement. When the bolts or rivets 14 reach the inner ends of the respective slots in the brackets 16, the said posts will be in locking position with respect to the slots in the loose leaves. Further movement of the shiftable elements in the same direction will then draw the sides of the binder toward each other as far as the telescopic posts or the number of leaves will allow to close the binder. In unlocking the hinder the screw element 4 is turned in the opposite direction to shift the nuts 6 outwardly. This operation will shift the bolts or rivets 14 in their slots to the outer ends of said slots to bring the leaf-holding means or posts into the entrance necks of the slots in the loose leaves to unlock the same. Further movement in the. same direction will then completely expand the sides of the binder. Thus the first part of the operation in closing the binder will bring the posts to leaf-locking position while the first part of the operation in openin the binder will bring the posts to leaflocking position. This operation arises from the fact that far less force is required to shift the plate members 10 than is required to expand or con tract the binder, and further from the fact that the horizontal component of force acting on the plates 10 is much greater than the transverse force acting to contract or expand the binder; there ore causing the bolts or rivets 14 to first traverse the length of the slots in the brackets 16 for locking or unlocking the leaves before the transverse component of force will come into play for contracting or expanding the sides of the" binder. l

When the leaves of the binder are in un-' lockedposition, they can be readily oii'set just as described in our copending application, and the binder is adopted for both pen and ink and mechanical bookkeeping.

From the foregoing, it will be apparent that we have invented a simple and practical mechanism for simultaneously shifting a lurality of posts in opposite directions for ocking or unlocking the loose leaves in a binder and also expanding or contracting the binding mechanism.

We are aware that numerous details of construction may be varied through a wide range without departing from the principles of this invention, and we therefore do not purpose limiting the patent granted thereon otherwise than necessitated by the prior art.

We claim as our invention:

1. In a loose leaf binder, a plurality of pairs of slidable plate members, leaf-holding posts carried by said members, a longitudinal screw member rotatably anchored in the binder and having a plurality of reversely threaded sections, shiftable elements on said threaded sections, and means connecting said slidable plate members to said shiftable elements.

2. In a loose leaf binder having a plurality of slidably supported plate members and leaf-holding posts carried by said members, a screw member having reversely threaded sections rotatably anchored in said binder, shiftable elements on said threaded sections, links connecting said slidable plate members and shiftable elements, and brackets slidably anchoring said links to the sides of said binder.

3. In a loose leaf binder, the combination with the shiftable elements for expanding and contracting the binder, of shiftable leafholding posts operatively connected to said elements, a loose leaf having a plurality of mushroom-shaped slots for accommodating the leaf-holding posts and allowing said posts to be shifted therein for locking said leaf in the binder.

4. In a loose leaf binder, two pairs of slidably supported plate members, leaf-holding posts carried thereby, a screw-threaded element having reversely threaded portions, nuts on said reversely threaded portions, links connecting said slidable members and nuts, and a slotted connection between said links and the sides of the binder.

5. In a loose leaf binder, expansible side members, longitudinaly slidable plates supported on said side members, leaf-holding means supported by said plates, a screw element having reversely threaded sections, nuts on said threaded sections and means connecting said nuts and plates and operaable for shifting said plates in advance of expanding saidsides.

6. In a loose leaf binder, expansible, and contractable side members, mechanism for contracting and expanding said sides, slidable plates carried by said sides, leaf holding posts carried by said plates, said plates being connected to said mechanism for shift-- ing movements in advance of the contracting or expanding movements of the side members.-

7. In a. loose leaf binder, expansible and contractable side members, plates slidably supported on said sides, leaf-holding posts rigidly supported on said plates, shiftable elements, a device for simultaneously shifting said elements and means conecting said plates and shiftable elements for successively shifting the said plates and contracting or expanding said side members.

8. In a loose leaf binder, side members, a plurality of pairs of plates slidably supported on said members, a leaf-holding post carried by each pair of members, a plurality of'shiftable elements, a device for simultaneously shifting said elements, and a plurality of pairs of links, each pair connecting a pair of plate members With a shiftable element.

9. In a loose leaf binder, a back, expansible and eontractable side members, two pair of parallel plates slidably supported by said sides and havin downwardly extending legs with integral ugs at right angles to sald legs, a screw shaft rotatabl anchored in the back of the binder and aving reversely threaded sections, nuts on said threaded sections, links connecting said lugs and nuts, and'brackets secured to the sides of the binder and having slotted lugs superposed on the other lugs for receiving the link-connecting means.

10. In a loose leaf binder, a back, expansible and contractable side members, a shaft having reversely threaded sections anchored in the back of the binder, nuts on said threaded sections, longitudinally shiftable leaf-holding posts carried by said members, means connecting said posts and nuts, and a lost-motion connection, between said means and the sides of the binder.

11. In a loose leaf binder, expansible and contractable side members, slidable plates carried thereby, leaf-holding means carried by said plates, shiftable elements, means for simultaneously shifting said elements, links connecting said plates and elements and slotted brackets connecting said links with the sides of the binder for the purpose set forth.

In testimony whereof we have hereunto subscribed our names in the presence of two subscribing witnesses:


A. W. Bnoss, R. B. ALDERSON.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5597256 *Jan 5, 1994Jan 28, 1997Burton; Joseph D.Insert for loose-leaf binder
U.S. Classification402/49, 402/501
International ClassificationB42F13/12
Cooperative ClassificationB42F13/12, Y10S402/501
European ClassificationB42F13/12