US1538605A - Loose leaf binder - Google Patents

Description

E. G. ALDEN ET AL LOOSE LEAF BINDER Filed Jan. 17, 1924 I JUL Patented May 19, 1925.

EARLE e. ALDEN, nanny Karine-MAN]; JOHN-"P. sQ'UaRns; or nnn vnn ooLonAno'r LOOSE LEAF Brnnnn.

Application filed January, 1924. Seria1'No. 686,8.70.

Z 0 a ZZ. whom it may, concern:

Be it known that w.e,,EAnLn- II-ARRY B. ALDEN, and JOHN P. SQUIRES, all citizens of" the United States of America, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful-Improvements in Loose-Leaf Binders, of whiclrthe followingisga specification. H

This lIIVBDt-l'OILlGliLtGS to looseleaf binders of the type described in detail in the applica tion of one of the Oct. 16, 1922, Serial No, 59' i,900, patented Feb. 19, 1924-, Patent No..1,4t83',862,.and has. for its principalv object the provision, in

binder of this charactenof means whereby loops of" the binder Wlll each of arches or come in perfect. contact Withnits standard, irrespective of the relative position. of each of the other loops. 7 I p Another object of the invention-is to provide means for aligning the loopswith their standards and. for: locking them 1n alignment.

A further objectis torso construct andarrange the trigger-o1: releasing mechanism thatitwill occupy, a minimum of? space in order that the base board of. the binder need not be made unnecessarily thick A still further obj ect of the invention is to providemeans iirthe-binder cover for insuringtheproperuspaoing of the openings therein, and for protecting the cover from injury at these openings.

Other objects and advantages reside in the detail construction of the invention, which result in simplicity, economy, and efliciency, and which will become more apparent from the following description.

In the following detailed description of the invention reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. 1 is a longitudinal vertical section through the invention.

Fig. 2 is a fragmentary plan View, partly in section, said section being taken on the line 22, Fig. 1.

Fig. 3 is an enlarged detail View of the trigger mechanism. The mechanism being shown in open position.

Fig. '1- is a detail View of the joint between G.: ALDEN,

present inventors, filed the fixed and. movable 111g loops.

Let the numeral 10 designate a base board portions of theb-ind toone end ot' which the. operating mech leather, etc.,surrounds the base board 10 and i the operating mechanism.

The operating mechanism is contained between two plates, the bottom plate, 12, extends back under and is secured to the base boardlO" by means of screws 13; The top plate, 1%, is-secured to the bottom by means of'suitable screws 15, and' 'is held in spaced relation therewith by spacer washer-1:6.

A series offixed, vertical standards 17 are secured in the bottomplate-12'and project upward through the top plate 14, The standards 17 are also providedwith spacer washers 18. j

A similar series of rotatable loopedstand ards 19are journaled in the plates 12and' 14 and project upward therefron'i to coa'ct with the fixedstandards 17." Secured to the standards 19,.between the plates 12and' 14, are levers 20, all of which means of common connection bar 21 A spring 27* forces a pivotedlever or trigger 22jinto engagei'nent. with a notch '23 in the edge of the connecting bar 21, as shown in Fig 3, wlienthe' loops havebeenturned to the open position, as shownin brokenline':

at 24:, and locks the loops open. 'Thetrigger 22 is provided with a button 25, which operates in an arcuate slot 26 in the plate 14, and by means of which the trigger is released from engagement with the bar 21. By having the trigger operate horizontally and engage the edge of the bar 21, a great saving of vertical space is obtained which allows the base board 10 to be made much thinner than when the lever operates vertically and engages notches in the top of the bar 21, as in the previous application.

It will be noted that only one of the levers 20 is directly pivoted to the bar 21, it being shown at 2 All other levers have their pivot pins operating in slotted holes 29, in the bar 21. The purpose of this is to ac complish the primary object of our invention, viz, to allow each of the loops to come into contact with its standard independent of the contact of each of the other loops.

It was found practically impossible to plate 12' are operated by bring all of the loops of a series into contact when the levers were all directly pivoted, as shown in the said previous application, for if one of loops should contact with its standard before the others, because of injury or imperfect manufacture, it would prevent all of the others from coming into contact. With the use of the slotted holes 29 and by providing each lever operating in a slotted hole with an independent spring 30, this difliculty has been eliminated for each loop is allowed an independent radius of operation which allows its spring to draw it into contact regardless of the position of the connecting bar 21.

A spring 31 operates the bar 21 and the loop whose lever is directly pivoted thereto.

It has been found, especially where the standards are long and the book is thick, that some means are required for drawing the extremities of the standards into on gagement and holding them there. WVe have accomplished this by cutting the extremities so as to form a lap joint, as shown in Fig. 4, and by providing one of the coacting laps with a tapered pin 32, which engages an opening 33 in the other of the coacting laps. Should the two contacting extremities be slightly out of alignment when the pin contacts with the opening 33, it,

being tapered,

will draw the parts into alignment as it passes into the opening.

A cover 3& is provided to enclose the bound sheets, designated at 35. The cover is similar to thatin'the said copending application with the exception that a metal bar 36 is bound into the extremity of said cover. The bar 36 has openings which register with the spacing of the standards 12 and through which they are passed. It prevents damage to the cover by the standards and insures the proper spacing of the openings therein.

While specific forms of the improvements have been described and illustrated herein, it is desired and understood that the same may be varied, within the scope of the appended claims, spirit of the invention.

Having thus described our invention what we claim and desire to secure by Letters Patent is 1. A loose-leaf binder comprising rotatable arch standards; a lever arm secured to each of said standards; a common connecting bar, provided with slotted holes; pivot pins in said lever arms traveling in said slotted holes and an independent spring acting on each of said cranks.

2. A loose-leaf binder comprising a housing; coacting fixed and rotatable standards ing bar connecting said rotatable standards and having a notch formed in the edge thereof and a horizontally-movable pivoted lever engaging, at its one extremity, in said notch when the rotatable standards are in the open position and projecting, at its other extremity, through an opening in said hous- 3. A loose-leaf binder comprising fixed standards; rotatable standards coacting therewith; lever arms secured to said rotatable standards; a connecting-bar connecting the extremities of said lever arms, said connection being sufficiently flexible to allow each standard to move through a relatively small are independently of the others and sufficiently rigid to cause all said arch stand-' ards to operate simultaneously through a relatively greater arc.

In testimony whereof, we aflix our signatures. I EARLE Gr. ALDEN. HARRY B. ALDEN. JOHN P. SQUIRES.

without departing from the carried on said housing; a common connect-

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