US1024525A - Locking device for loose-leaf binders. - Google Patents

Description

J. SGHADE, JR. LOOKING DEVICE FOR LOOSE LEAP BINDERS. APPLICATION FILED APR. 4, 1911.

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entrain snares PAEENT ent re.

JOHN SCHADE, JR-., OF NEN YORK, N. Y., ASSIG-NOR F ONE-HALF TO LOUIS FINK, OF NEW YORK. N. Y.

LOCKING DEVICE FOR LOOSE-LEAF BINDERS.

Specification of Letters Patent.

Patented Apr. 30, 1912.

Application filed April 4, 1911. Serial No. 618,878.

To all 107mm "it may concern:

tie it known that l, JOHN Flelmnu, J12, a citizen ot the l nited States. and a resiileut ol' the borough of Brooklyn. county of l\'in cs, cit and State of New York, have invented certain new and useful lmprovements in Locking Devices for Loose-Leaf lillltltl'h, of which the following is a specilication, accompanied by drawings.

This invention relates to locking devices for loose leaf binders and the objects of the invention are to improve upon the construetion of such devices, increase the strength and durability of the component parts of the device to enable the binder to receive and securely hold bulky contents without breaking or getting out of order, and affo d ready and convenient means for manipulating the locking devices from such position on the binder, as at the side. that inter 'lerence from the contents of the binder is obviated.

Other objects of the invention are to enable the movable. binding plate or frame to be securely locked and clamped in position on the b.-"-k rods with small. effort and by means of devices which will withstand constant and hard usage without breaking, and to construct the device in such manner thatthe operative locking parts are protected so that they will not. become bent by usage or blows and renderedinefficient, and require repairs.

Further objects of the invention will hereinafter appear and to all of these ends the invention consists of a locking device for loose leaf binders embodying the features of construction,combinations of elements and arrangement of parts having the general mode of operation substantially as hereinafter fully described and claimed in this specification and shown in one of its preferred forms in the accompanying drawings, in which Figure l is a perspective front view of a device embodying the invention; Fig. 2 is a horizontal sectional View taken through the top or mo.able binding frame or plate; Fig. 8 is a transverse sectional View taken, on the line 8-3 of Fig. 2 looking in the direction of the arrows; Fig. 4 is a transverse sectional view on line 44.- of Fig. 2 looking in the direction of the arrows; Fig. 5 is a detail top plan view of one of the locking plates or washers; and Fig. 6

is a detail top plan view of another of the locking plates or washers. Fig. 7 is a plan view of a modified form of washer.

lteferring'to the drawings, A and B represent the binding plates or frames for a loose l at binder. In this instance A is the base plate and l) is the movable plate, which is movable along the back rods or uprights (l. toaccommodate a greater or less number of papers. The back rods C maybe formed in the usual manner in sections detachably connected one tothe other as by means of suitable screw threads (not shown), and

each section may he provided with an aperture D through which an instrument may be inserted to unscrew the sections. 3y this means the back rods C- may be made as long or short. as desired, depending upon the use of the device.

The binding plates or frames A and B are preferably constructed outof sheet metal and bent into U -shaped form as shown in l ig. 1. This increases the strength of the binding frames, and affords a convenient construction for securing suitable covers to the frames. The back rods 0 as shown are suitably secured to the. base plate A and pass through the movable or top plate B and means are provided for adjusting and locking the movable binding plate l) at any desired height on the back rods the binder the papers to bebound are punched and inserted over the rods C before the movable plate B is placed in position, and then the plate B is placed over the. rods C and adjusted and clamped on top of the papers or at any desired height.

Great inconvenience has been experienced in locking devices heretofore made, because of the liability of the parts to become bent or broken, requlring repa1rs or the purchase of new devices. This invent-ion is designed to afi'ord a strong and durable locking de-f .;t

vice which may be used with papers of any bulk and with papers of any desired dimensions. The stack of paper may be very large and heavy and strong locking devices are required to keep the papers in position. The locking devices should be of such construction that, they will withstand blows and hard usage in case the binder for instance should fall from the desk or shelf.

As shown, the movable binding frameor plate B is provided with locking devices in It will be understood that in using the form 0i split or divided Washers or plates E and ll. These plates as shoWn are provided with apertures G and they are divided or split at H. Preferably notches J are provided in the Washers opposite the divided portions H. to afford a greater spring action between the parts of the Washers. One side oteaeh Washer is preferably bent at an angle at K and at l; and the portion i is provided with the forked projection 0, while the bent portion L is pro sided with the fork P.

The split; plates or \vashers I) and i are suitably secured to the binding irame l: between the sides oi the same as by means of rivets Q. The portions of the plates 1) provided with the tabs 0 and fork l are left tree to move and unsecured to the binding plate I. A locking rod it extends longitudinally of the plate B between the back of the plate and the lOtflilllfL devices E and F. This locking red It is provided with a Worm i l at one end meshing; with the fork t) on the plate E. At the other end the rod R is provided with a eircuniferential groove T meshing with the fork P on plate F. The rod R is provided with the squared end l over which is adapted to lit a key V for turning the rod about its longitudinal axis. Htops a re preferably arranged adjacent the free ends of the plates 1') and i to limit the outvard inovcn'ient of the parts.

in the operation of the device the binding rods (3 are thrust through the apertures (l in the locking devices or plates and by turnilng the key f the rod it is rotated about its oven axis. and the tree portions of the plates l) and F are drawn inwardly toward each other, thus tending to close the apertures G and cause the plates E and F to irrip the posts or rods ti. By turning the key V in the opposite direction the locking devices are loosened.

By means oi my device the top binding ilate E is firmly clamoed in an desired l l position by devices which are simple and strong and not, liable to get out oi? order. It Will he observed that the squared end of locking rod ll extends at oneend of the binding plate l so that the key V'yi'or tnanirmlating the rod is located at one side oi thebinder and tree and clear ot' the contents oil. the binder. By this construction the locking devices may be readily manipulated with small effort and by retrieving the rename key there are no projecting parts to be broken The locking devices are all inclosed Within the sides of the U shaped binding! plate B and are thus protected from injury.

My device is simple and cheap to manufacture and highly eilicieni'i in operation for the purposes for which loose leait hinders are used.

in Fig. 7 a modified form of washer is shown comprising two parts 2 and 33 formed substantially like the parts of the Washer shown in Fig. 5 but separate from each other and pivoted together by the pin l extending); through the ears.

I. claim and desire to obtain by lmtters Patent the following:

1. A locking device t'or loose leai hinders comprising back rods and a movable binding plate, split or divided lot-king plates connected to said binding plate at one side of the divided portion, leaving the remainder of the plates free to more, said iree portions oi the locking plates being provided with forked projections, a locking rod extending" longitudinally of the hinding plate and. having a Worm at one end meshing with the pro jections on one locking plate and a circumferential groove cooperating with the projections on the other locking plate, whereby rotation of the rod about its own axis clamps and unelamps the locking plates.

2. A locking device for loose leaf hinders comprising hack rods and a movable binding plate bent alongits longitudinal length into U shaped form, locking devices in the term of split or divided washers encirclingthe back rot s and mounted on the hinding plate between the sides thereof, projections on the movable portions of said locking devices, a locking rod extending longitudinally of the binding plate and located in the groove formed at the back of the U shaped binding plate, a worm at one end of the l()('l{ ing' rod and a groove at the other end engaging the projections on the locking devil-es respectively, and means i or rotating;- said locking rod about its longitudinal axis to tighten and loosen the locking devices In testimony whereof I have signed this specification in the presence oi two subscribing Witnesses.

JOHN SUllAlHC, .ln.

Witnesses Annohn llnmvmauiv, llnivny A. ltonnn'rs.

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