US1504040A - Ledger book - Google Patents

Description

Aug.; 5 19%,

c. LQ HARVEY LEDGER BooK Filed Aug. l5, 1922 CII Patented Aug. 5, 1924.

UNITED STATES LEDGEB 'Book'.

.Application filed August 15, 19225 serial No. 582,011.

T0' all ywhim??? t ntf'ag/ coaccrm Y Be itv known that I, CORBON L. HAVE'Y, a;

citizen of the Uni-ted States, residing at Detroit, county of lValyne, and State of `Michigan, have invented Va certain new and usefulA Improvement in Ledger Books, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this application.

My invention relates to loose leaf binders of the type shown and described in Patent No. 1,385,745, issued to me July 26, 1921, and consists in improvements in the back frame.

The object of my invention is to provide an improved back frame construction in which the ledger binding posts are engaged and disengaged simultaneously by sliding a member longitudinally of the frame bar.

In the accompanying drawings illustrating my invention- 1 Figure 1 is in part an elevation and in part a section of the ledger frame.

Figure 2 is a top view of the upper frame bar with its top wall removed to more clearly disclose the elements contained within the bar. Y

Both bars 1 and 2 are preferably constructed of two channel-shaped stampings of sheet metal which enclose slotted lugs 3 and 4 at their ends and are secured together by means of rivets 5 or by spot-welding to each other and to the lugs. This construction forms a bar of hollow rectangular cross sectionwhich possesses a high degree of rigidity for the weight and cost of material and in the case of the upper bar provides room for the postengaging mechanism.

The binder posts 6 have their lower ends shouldered and threaded to screw into lugs 3 and are formed in two telescoping parts, which may be extended or retracted to vary the distance between the frame bars 1 and 2. This is done by rotating the upper portion of post member 7 and ro-d 9 integral therewith by means of a square socket 8 until the desired adjustment is obtained.

The heads 10 of the binding posts are grooved at 11 to be enga-ged by the recessed end of strips 12 and 13 slidingly mounted in the ledger frame. Intermediate the ends of bar 2 a member 14: is pivoted and on opposite sides ofl its pivot 15 connect the inner'lends 16 and 1:7 of strips 12 and 13,

respectively. Between member 14: and one en d of vbar 2 the top surface of the bar is depressed as indicated, at 1.8 and a slot 19 is formed in ,this` depressed portion of the bar. v, That portion of strip 12 which is aligned with'thedepression'l in the bar is slight and bent up as shown at 19 to frictionally engage the lower surface of the bar depression and this struck-up portion 19 is provided with a perforation 2O which may be engaged by a nail or special tool which is usually furnished with binder frames of this type, whereby strip 12 may be slid longitudinally of bar 2. Obviously longitudinal movement of strip 12 will produce longitudinal movement of strip 13 due to the pivotal connection of the strips to member 1-14 and the pivotal mounting of the latter upon bar 2.

In the center of the bar a flat spring 21 is positioned between the lower channel of the bar and the adjacent face of strip 12. A projection 22 on this spring cooperates with a corresponding projection 23 on the lower face of strip 12 to yieldingly maintain the strip in extended or retracted position, that is, in post engaging or disengaging position.

The righthand hal-f of the frame is broken in order that the scale of the drawing may be enlarged but it will be understood that similar projections may be provided on the other end of spring 21'and on strip 13.

The ledger backs are not shown in the accompanying drawings as they form no part of my present invention and it will be understood that they are attached to the inwardly projecting ends of lugs 3 and 4 in any well-known manner.

Various modifications in the details of construction of my frame bar may be made without departing from the spirit of the invention as expressed in the appended I claim:

1. In a loose. leaf binder, a frame including a hollow bar perforated to receive the grooved ends of spaced binder posts, a member pivoted in said bar intermediate the ends thereof, post engaging strips slidable in said bar longitudinally thereof in opposite directions to engage the binder posts and connected at their respective inner ends to said member on opposite sides of its pivot, the top of said bar being formed with a depression and the adjacent faoe of one of said strips being formed with a boss in frietional contact with said depression, a transverse ridge on the opposite face of said strip, and a spring element fixed to the bottom of said bar and having a transverse ridge, said ridges being adapted to yieldingly resist longitudinal movement of said strip.

2. In a loose leaf binder, a frame including a hollow bar, the lower wall of which is perforated to receive the end of Va binder post and the upper wall of which is provided with a slotted depressed portion, a strip slidable longitudinally in said bar to engage or disengage said post and provided on its upper face with aV the lower face of said strip and the lower wall of said bar in yielding Contact with each other and provided withl interengaging transverse ridges, the relative' positions of which must be reversed longitudinallyl ofV the bar as the strip isfmoved from post engaging to disengaging position and return. In testimony whereof I hereunto alix iny signature this 5th day of August, 1922.'

Y @ORB-ON L. HARVEY.

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