US1341062A - Carthy - Google Patents

Description

W. J. McCARTHY.

LEAF PROJECTING DEVICE FOR LOOSE LEAF BINDERS.

APPLICATION FILED MAR. 25. I919.

Patented May 25, 1920.

2 SHEETS-SHEET l- W. J. McCARTHY'.

LEAF PROJECTING DEVICE FOR LOOSE LEAF BINDERS. APPLICATION FILED mm. 25, 1919.

1,341,062. Patented May25,1920.

2 SHEETS-SHEET 2- LT U 65 U U LA L lit/ENTER m HILL/17M JN-GIIITTM I fs WILLIAM JOHN MCCARTHY, OF OTTAWA, ON TARIO, CANADA.

LEAF-PROJECTING DEVICE FOR LOOSE-LEAF BINDERS.

Application filed March 25, 1919.

To all whom it may concern:

Be it known that I, WILLIAMJOHN Mc- CAn'rHY, a subject of the King of Great Britain, and resident of the citg of Ottawa, in the Province of Ontario, ominion of Canada, have invented certain new and useful Improvements in Leaf-Projecting Devices for Loose-Leaf Binders, of which the following is a specification.

This invention relates to improvements in leaf projecting devices for loose leaf binders, and the objects of the invention are to provide a simple and effective mechanism by which, when the binder is opened, the leaves may be projected outwardly to facilitate turning from one side to the other which is hereinafter explained.

In loose leaf binders and especially loose leaf ledgers it is found that when the books are opened it is difficult to turn the leaves owing to the fact that the top edges of the central leaves are usually considerably below the corresponding edges of the outermost or back leaves, which causes the per son using the binder to thumb or finger the sheet and frequently completely disfigu're the same. According to the present invention means are provided for projecting the central sheets of the binder outwardly to thereby cause the edges of the leaves to lie in convenient position for engagement by the fingers of the user. It consists essentially of the improved construction hereinafter described in detail in the accompanying specification and drawings.

In the drawings:

Figure 1 is an elevation of the rear part of the binder embodying the present invention.

Fig. 2 is an end view of the binder opened.

Fig. 3 is a cross section of the end of the binder closed.

Flg. 1s a perspectlve view of the proj ecting plates.

1g. 5 is a sectional view of the binder opened.

Fig. 6 1s a plan view of the end of one of the sheets of the binder.

Fig. '7 is a perspective view of an extort sion member for supporting the leaves.

In the drawings like characters of reference indicate corresponding parts in all the figures.

Referring to the drawings, A and B reprepresent the binding members, movable to and from each other and connected by tele- Specifieation of Letters Patent.

Patented May 25, 1920. Serial No. 285,004.

scoping binding posts 10. C represents the end plate. A suitable mechanism is provided for opening and closing the binding members to and from each other. This mechanism does not form part of the present invention and may be of any suitable character such, for example, as that shown in my (to-pending application, Serial No. 284,235, filed March 22, 1919. The central binding post 11 is preferably removable, whereby the central binding post may be engaged with a perforation 12 in the sheet I), while the posts 10 are engaged with open slots 13, the post 11 being rendered removable in any desired way, as for example, in the way described in my said copending application, whereby when the post 11 is removed the sheets are free relatively to each other and to the binder.

E and F represent the projecting plates which are connected to opposite binding members, the form of connection illustrated comprising links 14 which connect suitable pintles 15 on the plates with corresponding pintles 16 on the binding member. The member F is formed on the inner edge with a hook or hook-shaped portion 17 designed, when the binder is extended, to engage a corresponding hook or hook-shaped portion 18 on the plate E, whereby when the hooks are engaged the members will become hinged together and may be swung outwardly from the center into the V-shaped form shown in Fig. 5.

Suitable means are provided for moving the plates into the V-shaped form indicated. The means I have shown to accomplish this comprise cranks l9 journaled in the ends 20 on the plate 0 and having rollers 21 on the inner crank arms 22 which are adapted to engage the outer surface of the plate E, the outer ends of the cranks being formed with suitable pivoted finger rings 23 by which the cranks .19 may be turned.

To keep the plates E and F in normal position, flat springs 24 may be provided on the binding member adapted to bear against the plates.

In the operation of frequently it is desired to move the sheets which have been posted to one side after they have been released and to support them posting the ledger in this position when the-binder is open as shown in Fig. 5, I provide a V-shaped extension member 25 of the form shown in Fig. 7 having blfurcated ends 26 and 27 .4: edges or adapted to engage the edge of the binding members A and as shown in Fig. 2 whereby these members will form an extension of the plates E and F and so support the leaves.

To support the plates E and F when the binder is closed a plurality of telescopic supporting posts 30 ma be provided of similar form to the posts 10 and containing a spring 31 by which each is caused to extend. To enable the plates E and F to fold'past the binding posts 10 and 11 a plurality of slots 32 of suitable form are provided in the plates.

In the operation of the device the binder is first opened to the position shown in Figs. 1, 2 and 5, the cranks 19 are then turned, lifting the plates E and E and forcin them into the V-shaped position shown in I ig. 5, the links 14: permitting the plates to swing upwardly into this position after the hookshaped ends 17 and 18 have come into enga ement with each other. I

The leaves D in the binder being loose will take a position determined by the shape of the plates E and D. It the binder had been opened in the ordinary way the edges of the central sheets would be below the the outer leaves making it diflicult to turn them over. By the use of the present invention,however,the central leaves are caused to lie at least in the same plane with the edges of the outer sheets, and if desired can be made to project beyond such ends.

As many changes could be made in the above construction, and many apparently widely different embodiments of my inven tion, within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings, shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

1. In a loose leaf binder, binding members, links hinged to the members, and plates hinged to the links and provided with hook shaped engaging ends, the said plates being designed to open outwardly and adapted when the ends are interengaged to provide oppositely inclined supporting surfaces for sheets.

2. The arrangement according to claim l, in which cranks are provided for moving the plates outwardly.

3. The arrangement according to claim 1, in which the plates are spring held in normal position.

4. The combination, with the device according to claim 1, of an extension member supported on the binder and adapted to form an extension of the plates to support any leaves moved laterally.

5. An arrangement according to claim 1, including manually controlled means for operating the plates mounted independently thereof.

6. An arrangement according including telescoping members adapted to support the plates in normal position.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

WILLIAM JOHN MCCARTH Y.

Witnesses RUssnL B. SMART, P. M. GARROW.

to claim 1,

Images