US1797447A - Loose-leaf binder - Google Patents

Description

March 24, 1931. L A. SAWDGE 1,797,447

` LOOSE LEAF BINDER Filed Nov. l2, 1928 ATTORNEY Patented Mar. 24, 1931 UNITED STATES LOUIS A. SAVIDGE, OF KANSAS CITY, MISSOURI LOOSE-LEAF BINDER,-

Application led November 12, 1928. Serial No. 318,81?.

Y My invention relates to binders and more particularly to loose leaf binders for bookkeeping systems and the like, the principal object of the invention oeing to provide a leaf 5 securing mechanism whereby the sheets are all retained in order on one side of the binder, when the leaf securing mechanism is opened for removal or insertion of leaves from or into the binder.

10 Another object of the invention is to provide a leaf securing mechanism which is simple and economical in manufacture.

In accomplishing these and other objects of the invention, I have provided improved l5 details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of a loose leaf binder constructed in'accordance with 20 my invention.

Fig. 2 is an end view of the leaf securing mechanism.

Fig. 3 is a cross sectional view through the same, and

Fig. et is a disassembled view of one end of the leaf securing mechanism illustrating the parts in spaced relation.

Referring more in detail to the drawings:

1 and 2 designate the front and back cov- 3o ers and 3 an integral flexible portion forming the cover of the binder. 4 designates a back plate secured to the inside of the hinged portion 3 by rivets 5 which extend through openings 6 formed in the ends of the plate at 5 one side of the longitudinal median line thereof. The ends of the plate on the side opposite the securing rivets are split and longitudinally end portions are turned upwardly at right angles to the plate and perforated to provide bearing members 7 and 8 for pivotally mounting the ends of a hook supporting shaft 9.

The shaft 9 is preferably formed of a sheet metal strip 10 provided along its side edges with a series of aligning notches 11 and 12, rolled into tubular form to support a series of leaf-retaining hooks 13.

The hooks 18 are preferably formed of wire and comprise horizontal bar portions 14 and U-shaped hook portions 15 and 16 formed at the ends of the bar portions and projecting laterally therefrom. The bar portions 14 are of sucient length to allow the hook portions to project through the notches 11 and 12 when the strip is rolled to retain the hook members 5 and to form the shaft.

rlhe ends of the shaft thus formed are rotatably mounted in openings 17 provided in the bearing members 7 and 8 carried by the plate.

Fixed to the opposite side of the plate in alignment with each hook are cylindrical posts 18 having sockets 19 in their upper ends to receive the free ends of the hooks to retain the leaves of the binder as herein- 0" after described. ,Y j

The posts 18 are preferably shoulders on their lower ends as at 2O to provide rivet portions 21 for projecting through openings 22 in the plate and the ends of the portions 21 are riveted as at 23 to secure theposts to the plate. Y

The hooks are yieldingly retained in engagement with the posts by wire springs 24 5 coiled about the ends of the shaftand hav'- ing one end 25 anchored to the shaft and the other end 26 to the bearing so that the springs exert tension on the shaft to retain the hooks in engagement with the posts.

In using a binder constructed as described, the leaves designated 27 are arranged in order and one of the hooks is lifted with the finger to rotate the shaft against tension of its springs to move all the hooks away from the posts. The leaves lare then inserted in the binder sothat the openings 28 along their side edges will engage over the posts, whereupon the shaft is released permitting t-he springs to rotate the shaft to again bring the eo hooks into engagement with the posts to rev tain the sheets in the binder.

When a new sheet is to be inserted in the binder all the sheets are moved so that they lie flat against the back cover of the binder. The hooks are then swung away from the posts to permit insertion of the new sheet.

Attention is called tothe fact that whileV the hooks are disengaged, the sheets are all retained in their correct order and are pre- 39* vented from getting out of alignment by the osts.

P What I claim and desire to secure by Letters Patent is:

1. In a loose leaf binder, a back plate, bearings at the ends of the plate, a tubular shaft rotatably mounted in the bearings, hooks having angular extensions housed inthe tubular shaft for retention of the hooks by the shaft, and socket members fixed to the plate for engaging the hooks.

2. In a loose leaf binder, a back plate, bearings at the ends of the plate and adjacent one side edge thereof, socket members adjai5 cent the opposite side edge, a shaft rotatably mounted in the bearings, hook members on. the shaft comprising horizontal bar portions anchored to the shaft and lateral hook portions formed at the ends of the bar portions so. for engaging in the socket members.

3. In a loose leaf binder, a back plate Xed to the binder, a .shaft rotatably mounted on the back plate comprising a tube formed from sheet material having aligning notches along 2.5 its side edges, posts mounted on the back plate having sockets in-their upper ends,hook membersanchored in the shaft and having hook portions eXtendingthrough said notches to engage in the sockets of theposts.

4... In a device of the character described in-v cluding a back plate, a tubular shaft rotatably mounted onY said plate, hooks having angular extensions housed in and anchored to the tubularshaft, and means fiXeolto the plate forengaging the hooks. Y

5. In a. device of the character described, a` plate, bearings on the plate, a shaft rotatably supported by said bearings, hook members comprising horizontal bar portions anchored io to said shaft and 1lateral hook portions, and posts fixed to the plate to receive said hook portions.

In testimony whereof I aiiix my signature.

LOUIS A. SAVIDGE.

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