US1770670A - Leaf flipper - Google Patents

Description

July 1 5, 1930. R. M. RAYNOLDS LEAF FLIPPER Original Filed Oct. 13 1928 /IYVEIYTOR' Patented July 15, 1930 srss PATENT FFICE REGINALD M, RAYNOLDS, OF NEW YORK, N. Y., ASSIGNOR TO MCMILLAN BOOK COM- PAN Y, OF SYRACUSE, NEVJ YORK, A CORPORATION OF NEW YORK LEAF FLIPPER Original application filed. October 13, 1928, Serial No. 312,240. Div iz1ed and this application filed T September 11, 1929.

This invention relates to a new andimproved leaf flipper for use with loose leaf binders and is particularly well adapted to be used with loose leaf binders of the split ring or arcuate prong type, and is a division of my co-pending application Serial No. 812,24l0, filed Oct. 13, 1928.

When binders of this type are open and it is desired to close them by moving the covers towards each other such movement of the covers will move the sheets in the binder around the binder rings or prongs. The sheets ofsuch binder are held in position by virtue of the fact that they are provided with apertures along a longitudinal edge in which the rings or prongs are positioned, such apertures usually being circular in shape and of a diameter slightly larger than the ring or prong which extends through them.

In binders of this type the rings or prongs are usually positioned on a backmember to the outside edges of which are hinged the covers of the binder with the result that the portions of the sheets with which the rings or prongs are engaged are positioned between the hinges of the covers so that'when the covers are raised for the purpose of closing the hinder. the outer edges of-the sheets will be raisedabove the inner edges of the sheets with the result that the rings'or prongs will assume an oblique position with reference to the apertures in the sheets which will cause the sheets to bind on the rings or prongs to a certain degree and resist movement around such rings or prongs. The sheets usually used with this type of binder being th n there is considerable possibility of injury to the sheets when they are thus forced along the rings or prongs, which isparticularly true of the sheets which are ad acent to the covers.

In order to permit the movement of-the sheets along the rings orprongs it is desirable to provide a means which will provide a suport for the leaves during such movement and which will also hold the 19c ves msuch a position with reference to the rings or, prongs ,that there will be no tendency of the leaves to bind on the prongs during their movement, and the main obj ect'of my invention is to provide a device which may be interposed be- Serial No. 391,926.

tween the leaves of a binder and the covers of the binder to act as a support and guiding means for the leaves while tl e binder is being closed.

Other objects and advantages relate to the size, shape and arrangement of parts, all as will more fully appear from the following do scription taken in connection with the accompanying drawings, in which:

Figure 1 is a perspective View of the preferred form of my device.

Figure 2 is a top plan view, partially broken away and partially in section, showing two of my devices in position on a binder with a leaf in position on one of such devices.

Figure 3 is a section on line 3-3 of Figure 2.

For the purpose of explaining the constructionand operation'of my device I have here shown one type of a split-ring binder 1 comprising a back member 2 and covers 3 and 4: connected to back member 2 by flexible hinges 5 and 6 respectively. A curved spring plate 7 is afiixed to the upper surface of back member 2 by rivets or other convenient means, not shown. Spring plate 7 has its opposite longitudinal edges return-bent to form channels 8 and 9. A toggle plate 10 having aifixed thereto a plurality, in this case shown as five, of half-rings 11 is positioned on back member 2 with one longitudinal edge in channel 9 of spring plate 7 A second togg-le plate 12 having a'liixed thereto a plurality, in this case shown as five,of halfrings 13 is similarly positioned on back member 2 with its outer longitudinal edge in channels '8 of spring plate 7. A plurality of doubleheaded buttons 14, one only being shown, are

positioned between the inner longitudinal.

edges of toggle plates 10 and 12 with such edges between the heads of the buttons 14.

The combined width of toggle plates 10 and this position by the pressure of spring plate 7. When it is desired to raise the inner longitudinal edges of toggle plates 10 and 12 above the outer longitudinal edges of such plates to separate half-rings 11 and 13 such movement is permitted by the resiliency of spring plate 7, and when such movement has been completed the parts will be yieldingly held in that position by the pressure of spring plate 7. The movement downwardly of the inner longitudinal edges of toggle plates 10 and 12 and the corresponding upward movement is limited by the buttons 14 which permit only a limited movement of the edges of toggle plates 10 and 12 between the heads of buttons 14.

A curved cover plate 15 is positioned above toggle plates 10 and 12. Cover plate 15 has its longitudinal edges returnbent so that it may be sprung over the longitudinal edges of spring plate 7 and be held securely in that position. Cover plate 15 is provided with slots 16 and 17 to permit the movement therethrough of half-rings 11 and 13 as the same are closed and opened. The upper end of half-ring 11 is V-shape in form so that it may enter a V-shaped slot in the upper end of half-ring 13 when the two rings are brought together, half-rings 11 and 13 beingso positionedon toggle plates 10 and 12 respectively that half-ring 11 will register with opposing half-ring 13.

The preferred form of my leaf-supporting device, as perhaps may best be seen from 'Fi ure 1, consists of a substantially rectangular-shaped body 18 made of metal or fibre or other sufficiently stiff material. Body 18 is provided with a plurality, in this case shown as five, of oval apertures 19 so positioned that they will register with either half-rings 11 or half-rings 13 when the body 18 is placed in position in the binder. Body 18 is formed with an approximately V-shaped upwardly bent rib 20 positioned between apertures 19 and the edge of body 18. Rib 20 is so formed asto provide a vertical ledge or stop 21 adjacent apertures 19 and in spaced relation thereto.

Although not essential for the functioning of my device, I here show in the edge of body 18, adjacent rib 20, a plurality of notches 22 in alinement with apertures 19, which notches 22 come into registration with prongs 11 or 13 when the binder is being closed.

In use it isdesirable to use two of my deyices, onecooperating with each of the covers ,Qf the binder, and I have here shown in Figure 3 one of my-devices in position on cover 3 with no leaves thereon and asecond one of myfdevices in position on cover 4 with a plurality of leaves 23 in position on the device.

The leaves 23 are provided with apertures 24 so positioned as to register with halfrings 11 or 13, and for a purpose hereinafter to be described it is desirable to have the distance between the centers of apertures 21 and the longitudinal edge of the sheet greater than the distance between ledge 21 and the center of oval apertures 19.

lVhen the parts are in the position shown in Figure 3 and cover 3 is raised for the purpose of closing the binder it will raise with it the outer edge of body 18 which will cause the outer end of aperture 19 to contact with half-ring 13 and ride upwardly thereon, the inner end of body 18 moving outwardly along the upper surface of cover plate 15 to guide body 18 in its upward movement.

hen cover 4 is raised in a similar manner the body 18 will move upwardly in the same way as the body 18 moved upwardly on cover 3 as just described, and in doing so it will carry upward with it the sheets 23 which are positioned on its upper surface.

The relation of parts is such that the inner longitudinal edges of sheets 23 will rest against the ledge 21 on body 18, and inasmuch as the distance, as just described, be-

tween the inner longitudinal edges of sheets and the centers of apertures 24: is greater than the distance between ledge 21 and the centers of apertures 19, the apertures 24 in sheets 23 wi 1' be held in such a position that the outer edges of apertures 24 will be in spaced relation to the outer surfaces of halfrings 11 and there will be no tendency for apertures 24 to bind on half-rings 11.

In Figure 3 I have shown inheavy lines the binder in the open position and in dotted lines the binder in the partially closed position.

It will be understood that the material from which my device is made may be varied as desired and it will also be understood that the size, number and relative position of the apertures 19 and the notches 22 may be varied as inlay the height and length of the sto 21 in or er that my device may be ada te for use with different types of bin er, for although I have shown and described a specific structure and form of part as an exemplification of an embodiment of my invention, I do not desire to restrict myself to the exact size, shape or relation of arts as various changes may be made wit in the scope of the appended claims.

I claim: i 1. In a device of the class described, a plate having a plurality of spaced apertures adjacent one edge and a vertically and longitudinally extending stop between the apertures and the edge of the plate and in spaced relation to the apertures;

2. In a? device of the class described, a plate having a plurality of spaced oval a'pertures adjacent one ed e' and a vertically and longitudinally extending between the apertures and theedge of the plate and in spaced relation to the apertures.

3. In a device of the class described, a plate having a plurality of spaced apertures adjacent one edge, and a portion of the plate intermediate the apertures and the edge of the plate being bent upwardly to form a vertically and longitudinally extending stop positioned in spaced relation to the apertures.

&. In a device of the class described, a plate having a plurality of spaced oval apertures adjacent one edge, and a portion of the plate intermediate the apertures and the edge of the plate being bent upwardly to form a vertically and longitudinally extending stop positioned in spaced relation to the apertures. 5. In a device of the class described, a

plate having a plurality of spaced apertures adjacent one edge, and a vertically and longitudinally extending stop in spaced relation to and positioned between the apertures and the edge of the plate.

6. In a device of the class described, a plate having a plurality of spaced oval apertures adjacent one edge, and a vertically and longitudinally extending stop in spaced relation to and positioned between the apertures and the edge of the plate.

In witness whereof I have hereunto set my hand this 5th day of September, 1929.

REGINALD M. RAYNOLDS.

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