US1744912A - Loose-leaf binder - Google Patents

Description

Jan. 28, 1930. H. B. MOBEE 1,744,912

LOOSE LEAF BINDER Filed Dec. 29, 1924 INVENTOR 12 BY wQup ATTORNEYS Patented Jan. 28, 1930 UNITED STATES PATENT OFFICE HARRY .B. MCBEE, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE MGBEE BINDER 00., O1 ATHENS, OHIO LOOSE-LEAF BINDER Application filed December 29, 1924. Serial No. 758,490.

My invention relates to the bookbinding art, and particularly to the class known as loose leaf binders, and has for its object to provide adequate and satisfactory means to 5 retain the perforated sheets on their bind ing posts without looking the means to the posts. In practically all binders of this type, binding posts to receive the papers are employed and the retaining means is locked to the posts. This ultimately loosens or displaces the posts, so that continued filing and binding becomes difficult and tedious and consumes so much time that the value of the binder is greatly reduced. It is my purpose in my present invention to overcome such defects.

My invention consists of the details of construction hereinafter set forth, pointed out in my claims and illustrated in the accompanying drawings, in which,

Fig. 1 is a perspective view .showing my device in position for use;

Fig. 2 is an enlarged plan view of the device;

Fig. 3 isa detail view.

Similar reference numerals refer to similar parts throughout the entire description.

Referring to the accompanying drawings, the reference numeral 10 is used to indicate the lower cover of a loose leaf binder, to which a multiplicity of binding posts 11 are secured and extend upwardly therefrom. The numeral 12 indicates the back of the binder, which when the binder is assembled is at right angles to the lower cover 10, the back and lower cover being flexibly joined together. Centrally of the back and on the inner face thereof, I have secured a vertically positioned plate 13, its longitudinal ends being turned inwardly, as shown, to provide a slidable track retaining means for the sheet retaining plate 14. This plate 14 is provided with orifices 15, to register with their respective posts 11, for the plate is designed to fit over and move up and down on the posts. The plate 14 is slidably anchored to the plate 13, by means of a right angular positioned extension member 16, recessed in each side to receive the inturned ends of the plate 13, the

construction as shown and described providing for the plate 14 being slidably mounted vertically in the plate 13.

The numeral 17 indicates a lock lever, pivotally secured to the plate 14in such man-- ner that the lever, when turned to the proper angle, will frictionally lock itself against the plate 13, as shown. Obviously this action will successfully lock the plate 14 at any desired position to the plate 13. As the plate 14 slides freely in its seating in the (30 plate 13 when the lock is not operating, and as the slots formed by the inturned longitudinal ends of the plate 13 are open at their upper ends, the plate 14 may be removed from the plate 13, by elevating it until the 05 extension member 16 comes out of the slots. The perforated sheets are then placed on the posts, the plate 14 seated in the plate 13 and moved downwardly to the desired position 7 (usually resting on the upper sheet on the posts), and the plate 14 locked in position. As the plate is not looked to the posts, it is obvious nostrain or stress is applied to the posts, and therefore they are not weakened by the operation.

By my construction, the plate 14 being slidably anchored to the plate 13 which plate is secured to the back, and the orifices in the plate 14 fitting over the binding posts, it is obvious that the plate 14 thus positions the so back in a vertical position at right angles to the cover.

I desire it understood that the construction shown is the preferred one I employ, but other constructions employing my invention may be used with an equal degree of success, and I do not wish to be limited in the scope of my invention except as set out in the appended claims.

Having thus described my invention, whatso I claim and desire to secure by Letters Patent of the United States is:

1. A'looseleaf binder comprising a back, top and bottom covers, said bottom cover and back being flexibly joined to each other, posts supported upon the bottom cover, a guide plate carried by the back, a clamping plate, said clamping plate having openings formed therein for the passage of the posts, a projection formed upon the clamping plate,

tongues formed upon the projection for engagement with the guide plate, an eccentric clamping lever pivotally supported upon the clamping plate and adapted to engage said guide plate when in the clamped position.

2. A loose leaf binder comprising a top and bottom cover and a back said bottom cover being flexibly joined to said back, posts rigidly supported upon said bottom cover, a traclnvay secured to said back, a clamping plate movably supported upon said trackway and provided with openings for the assage of said posts, clamping means carried y said plate and engaging said trackway, said plate adapted to be held against vertical movement independent of the posts.

3. A loose leaf binder comprising a back, top and bottom covers, said bottom cover being flexibly joined to said back posts rigidly supported upon the bottom cover, a plate secured to the back and having its edges inturned for providing a vertical trackway, a clamping plate provided with spaced openings for the passage of the posts, an extension formed upon the clamping plate, said extension provided with outwardly projecting tongues, said tongues engaging behind the inturned edges of the trackway, an eccentric clamping lever pivotally supported upon the clamping plate adjacent the said extension, said lever when in the clamping osition adapted to hold the clamping plate in rigid clamped position independent of the posts.

HARRY B. MoBEE.

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