US1498647A - Loose-leaf binder - Google Patents

Description

June 24 1924. 1,498,647

J. C. DAWSON LOOSE LEAF BIND-ER Filed Nov. 19. 1919 Patented June "24, 1924.

PATENT @FFEQE.

JAMES C. DAWSON, F WEBSTER GROVES, MISSOURI.

LOOSE-LEAF BINDER.

Application filed November 19, 1919. Serial No. 339,153.

To all whom it may concern:

Be it known that I, JAMns C. DAwsoN, a citizen of the United States, and resident of Webster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming ;a part thereof.

his invention relates to loose leaf binders and has for an object the provision of a device of this nature which may be very cheaply manufactured. A further ob ect of the invention is the provision of a device of this nature that shall comprise the minimum number of parts and hence shall not be liable to get out of order. Other objects will appear from the following description when read in connection with the drawings showing an illustrative embodiment of the invention and in which;

Fig. 1 is a perspective view of a loose leaf binder in open position;

Fig. 2 is a detail plan view of one retaining device;

Fig. 3 is a detail section on line 33 of Fig. 2;

Fig. 4 is a detail section Fig. 2, and

Fig. 5 is a perspective view of an element of the device.

The binder, as shown, comprises a pair of covers 10, 11, each hinged to a back 12 upon which are secured the leaf retaining devices, as 13. Any desired number of devices 13 may be used, two being shown.

The leaf retaining devices 13, as shown, comprise but two elements; a base member 14 and a staple 15, hinged thereto. As shown, the staple 15 has one end turned at an angle to the plane of the staple and extended to provide means for hinging the staple, and has a notch, as 22, and a beveled face, as 17, for latching purposes at its other end.

The base member 14 is shown as comprising a central horizontal plate portion 18 with a rolled portion on each side thereof and projecting upwardly therefrom.

To serve as a hinge for staple 15, one of the rolled portions is shown as provided with a recess, as at 19, the width of which is substantially equal to the diameter of the stock of which staple 15' is formed. This recess preferably severs the roll at its outer on line 4-4 of edge but leaves a vertical portion at its inner side, as at 26. The part 20 of the roll is shown as receiving the end 16 about which end the staple may rotate in its plane. The part 21 of the roll serves to prevent endwise movement of end 16 in part 20.

To provide" a keeper to coact with notch 22, the roll 23 atthe opposite side of the plate from hinge of the staple 15 is recessed,

as at 24. Preferably this recess is little more than an aperture in the top of the roll 23, in order to preserve the stiffness of the roll as much as possible.

The base member 13 is formed of a sheet material possessing some degree of resiliency. For the usual sizes of binder ordinary commercial sheet tin will be found to be suitable.

lVith the parts in the position shown in Fig. 2, if the latch side of the staple be pressed downwardly the staple will be given a movement which is a composite of a lateral tipping about a vertical axis through the apex of the angle between end 16 and the staple and a motion of rotation of the staple about its leg 16. This motion will cause a yielding of the part 20 of the plate 18 byvirtue of its resilience thus releasing notch 22 from its keeper. When the latch has been released by lateral pressure the staple may be swung back in its plane about end 16 as a pivot for the insertion or removal of leaves which will be perforated to pass over the staples 15., To close the staples it is only necessary to press the beveled end 17 into contact with the edge of recess 24 when the notch 22 will snap to position.

I claim as my invention:

A loose leaf binder comprising, in combination, a back, a pair of covers hinged to said back, a base rigidly secured to said back, an upwardly extending roll on each margin of the base, each roll having a re cess at its intermediate portion, a staple having the end of one leg projecting laterally from the plane of the staple, the leg extending into one of said recesses and the end lying within one part of the roll, the other part of the same roll preventing removal of the staple, the other end of the staple having a notch adapted to be retained in engagement with an edge of the remaining recess by resilience of the roll extending about the leg of said staple.

JAMES C. DAWSON.

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