US820799A - Loose-leaf binder. - Google Patents

Description

IATENTED MAY 15, 1906.

G. LABARRE. LOOSE LEAP BINDER.

APPLICATION FILED D20. 20, 1905.

George Maj ST GEORGE LABARRE, OF NEWV ORLEANS, LOUISIANA.

LOOSE-LEAF BINDER.

Specification of Letters Patent.

Patented May 15, 1906.

Application filed December 26,1905. Serial No. 293,361.

\ tion.

This invention relates to loose-leaf binders, and especially that class of binders employing parallel pin-carrying members movable toward and away from each other, the loose leaves being perforated to receive the impaling-pins and being held between said members.

The object of the present invention is to provide a simple and novel means for actuating and holding the pin-carrying members so that their parallelism is preserved under each and every adjustment of the same, the actuating mechanism being controlled by means of a key or operating-crank which is detachable from the binder, so that said binder cannot be operated for releasing the leaves Without the aid of such key or operating-crank.

With the above and other objects in view the invention consists in the novel construction, combination, and arrangement of parts, as hereinafter fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a plan view of a loose-leaf binder embodying said invention. Fig. 2 is a crosssection through the same on the line 2 2 of Fig. 1.

Like reference-numerals designate corresponding parts in both figures of the drawings.

Referring to the drawings, 1 1 designates parallel pin-carrying members between which the loose leaves are adapted to be confined and impaled on holding-pins which are fitted in the sockets 2 on each of the members and project toward each other, the pins being preferably of telescopic construction similar to those now in common use.

The members 1 are slidably connected with a base or frame plate 3, extending the entire length of the binder and provided at each end with oppositely-located guide-plates 4 and 5, which are secured to the plate 8 in such n1anner as to leave an intervening space or guideway 6, into which the angular end flanges 7 of the members 1 fit and slide in a direction transversely of the plate 3, said-construction serving to steady and guide the movements of the members 1.

The mechanism for actuating the members 1 toward and away from each other consists of an operating-screw 8, which is mounted in an elongated housing 9, fastened to the plate 3. The screw 8 is provided with a terminal threaded portion 10, which works in a threaded opening in a nut 11, forming one end of the housing 9, as shown in Fig. 1. The screw 8 is provided with another threaded portion 12 adjacent to the thread 10, but of greater pitch, the threads 12 having approximately twice the pitch of the threads 10 for a purpose which will hereinafter appear. The screw 8 comprises two sections or members, one of which is adapted to telescope within. the other, or, in other words, the section which is threaded is provided with a squared end portion 13, which has a sliding iit in the other section 1.4, which. is in the form of a sleeve journaled in the plate 4 and the end 15 of the housing 9, any suitable means being provided to prevent endwise movement of the sleeve 14:. The sleeve 14 also extends through the outer plate 5 and is operated by means of a key or crank 16, having a squared shank 17, which fits into the outer end of the sleeve 14, the operating-crank or key being thus removed from the device.

In connection with the screw 8 two runners 18 and 19 areemployed, the runner 18 being threaded upon the part 12 of the screwshaft and having pivotally connected thereto links 20, which extend obliquely outward to and connect pivotally with the pin'carrying members 1. The other runner 19 is swivcled or journaled on the screw 8 and has a shouldered engagement therewith, so that while the screwS is permitted to rotate freely therein said runner 19 is moved with the screwshaft 8 in the endwise movement of the latter. Links 21 extend. from the runner 19 outward to the members 1, said links corresponding with the links 20, above referred to, but being inclined in a direction reverse thereto.

When the shaft 8 is turned by means of the operating-crank or key, said shaft-is caused to move endwise within the housing 9 and relatively to the base or frame-plate 3, thus moving the runner 19 at a rate of speed corre sponding with the pitch of the threads 10. Simultaneonsly the runner 18 is moved at a speed corresponding with the pitch of the threads 1.2, or, in other words, at a speed approximately twice that of the runner 19 and in an opposite direction. It will thus be seen ICO that the runners 18 and 19 are moved simultaneously toward or away from each other at equal speed relatively to the base or frame plate 3, and therefore, by means of the links 20 and 21, the members 1 1 are moved out ward or inward and maintained in parallel relation at all times. This causes a separation between or a bringing together of the inner ends of the impaling-pins and provides for releasing and fastening the loose leaves in the usual manner. The telescopic construction of the operating-screw admits of the necessary endwise movement of the threaded portion or section of said shaft. Both threaded portions 10 and 12 of the screw are pitched in the same direction, and they may be either both right-handed or left-handed threads.

Having thus described the invention, what I claim is- 1. A loose-leaf binder comprising oppositely-located leaf-holding members, and means for moving said members in opposite directions consisting of runners having a linked connection with said members, and an operating-screw having threaded portions of different pitch and associated with the runners to impart equal and simultaneous movement thereto in opposite directions.

2. A loose-leaf binder comprising oppositely-located leaf-holding members, a base or frame plate with which said members have a sliding en agement, runners movable along said base late in a direction at right angles to the movement of said members, links interposed between said runners and members,

and an operating-screw having a swiveled engagement with one runner, a threaded engagement with the other runner and a threaded engagement with the base or frame plate.

3. A loose-leaf binder comprising oppositely-located leaf-holding members, a base or frame plate with which said members have a sliding engagement, runners movable ina direction at right angles to the movement of said members, links connecting the runners, with said members, and a telescopic operating-screw embodying an endwise-movable section having a threaded connection with the frame-plate and also connected with the runners to impart simultaneous and equal movement thereto in opposite directions.

4. A loose-leaf binder comprising oppositely-located leaf-holding members, a frameplate with which said members have a sliding engagement, runners having a linked connection with said members, a telescopic operating-screw extending parallel with said members and adapted to actuate the runners simultaneously in opposite directions, said screw embodying an endwise-movable member and an endwise-fixed member into which.

the movable member slides and with which it has a keyed connection, and a detachable key for rotating the endwise-fiXed member.

In testimony whereof I affix my signature in presence of two Witnesses.

GEORGE LABARRE.

Witnesses:

DELVAILLE H. THEARD, R. J. Noenns.

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