US1895629A - Loose leaf binder - Google Patents

Description

Patented Jan. 31, 1933 PATENT HENRY MORGAN KELLOGG, OF STRATFORD, AND JOH1\T .AHLBIN, OF FAIRFIELD, CON- INECTICUT, ASSIGNORS TO THE E. W. CARPENTER IIIANUFACTUPUING COMPANY, OF BBIDGEEORT, OGNNEC'IICUT A CORPORATION OF CONNECTICUT Loosn LEAF BINDER Application filed October 26, 1931.

This invention relates to new and useful improvements in loose leaf binders.

An object of the invention is to provide a loose leaf binder of improved construction wherein the back member and metal member are tightly connected so as not to shift relatively and wherein the metal shapes the binder backto provide a round back binder wherein the back is held in shape by the metal.

Another object is to provide a loose leaf binder wherein the ends of the metal are rounded to shape the binder back and wherein the metal engages the back at the ends of the metal and for the entire length of the metal at the longitudinal edges thereof whereby to give the back a good substantial support. r

' A further object is to provide a loose leaf binder wherein the connection between the metal and the binder back is directly against the back to prevent shifting of the back and to give a tight connection while permitting of the use of short rivets or other securing means, in combination with a metal employing a minimum of material whereby the binders may be manufactured at less cost.

Other objects and advantages will become apparent from a consideration of the following detailed escription taken in connection with the accompanying drawing wherein a. satisfactory embodiment of the invention is shown. It will, of course, be understood that the invention is not limited to the details disclosed but includes all such variations and modifications as fall within the spirit of the invention and the scope of the appended claims to which claims reference should be had for a definition of the invention.

In the drawing:

Fi 1 is a plan view of a loose leaf binde having a base metal or member in accordance with the present invention;

Fig. 2 is a bottom plan view of the metal completely assembled ready to be secured upon the back of binder; V

Fig. 3 is a plan view of the flat stock illustrating the manner of fabricating and punching the same preparatory to the shaping of the same into the metal of Fig. 2;

Fig. at is a transverse sectional view sub- Serial No. 571,052.

stantially on the line H of Fig. 2 and showing the binding rings closed;

Fig. 5 is a view somewhat similar to Fig. 4; but showing the rings open;

Fig. 6 is a perspective view showing one end portion of the metal separate from the binder; v

Fig. 7 is asectional view through one end portion of the metal alone as suggested by the line 7-7 in Fig. 1;

Fig. 8 is a transverse sectional view taken on the line 8-8 of Fig. 1 and illustrating the manner of securing the metal and back together;

Fig. 9 is an end elevational view'showing a portion of the back with the metal assembled thereon; and

Fig. 10 is a view somewhat similar to Fig. bcpt showing the parts completely assem- Referring in detail to the drawing, the metal is generally designated 11 and as shown in Fig. 3 initially comprises a fiat or substantially flat piece of stock having similar end members 12 and 13. Pairs or sets of openings 14.- and 15 are provided in the metal 11 to receive the ring members as is well understood in the art. Further, somewhat inwardly of each of the ends 12 and 13 the metal 11 is perforated as at 16 for a purpose to be described.

The ends 12 and 13 are of the same construction and these ends are imperforate, but their extreme edges are rounded as at 17. Metal 11 also includes side wall portions 18 extending along the longitudinal edges of the metal and the ends 12 and 13 have straight side edges 19, the length of said edges preferably equal to the width of the side walls 18 of the metal. In this connection it will be noted that the curvature of the outer edges 17 of the ends 1 2 and 13 starts at the extreme outer end of the straight side edges 19 of the ends. 1

In assembling the metal the entire longitudinal central part thereof, designated 20, and comprising that portion of-the metal not represented by the ends 12 and 13 and the sides 18 is given a concave curvature as clearly shown in Figs. 4 and 5. Thepurpose of FFlCE' this configuration is, of course, to permit the operation of suitable shaft members 21 and 22 connecting the binding rings 23. The side walls or edge portions 18 of the metal are bent around the longitudinal portions of the shaft members 21 and 22 as clearly shown in Figs. 2, 4 and 5.

hen the ring members are in position as shown in Fig. 4 the inter-engaging parts of the shafts 21, 22, which parts are designated 24, meet at an angle below the other portions of the shaft members. hen it is desired to open the rings 23 it will be obvious that the shaft members 21 and 22 will be forced past the common center and up into the curved portion of the metal member 11. From this it will be seen that by forcingthe inter-connected parts at of the shaft members up and down past the common center the ring members will be held open orclosed.

The ends 12 and 13 are also bent into the position shown as extending downwardly from the curved body portion. \Vhen in position the ends 12 and 13 are disposed between the extreme end portions of the side walls 18 preferably with the edges 19 of the ends adjacent the inner surfaces of the side walls. Since the edges 19 of the ends are of the same height as the sides 18 it will be apparent that the curved edge portions 17 of the ends will project somewhat beyond the lower edges of the sides.

Openings or perforations 16 are adapted to have rivets or other securing means passed through them and through the back 25 for the purpose of securing the metal to the back. As the edges of the sides 18 engage the back when the metal and back are assembled it will be apparent that the curved body portion 20 of the metal, through which or in which openings 16 are provided, will be in spaced relation to the back. Therefore, with the openings 16 in the plane of the portion 20 of the metal relatively long rivets or other securing means would be required to connect the metal and back, and the back would not be properly supported or securely fastened in its portion through which the rivet would pass. This is commonly used in old constructions and is not satisfactory as the metals are not properly secured in the desired position but are permitted to shift. That is, the metals are not tightly secured to the back and so would shift back and forth. Also in these devices the backs are not made of heavy substantial material but of light cardboard, and if the rivet is drawn up tight it bends the back inwardly thus tending to concave it or it is liable to pull through.

To overcome these objections a portion of the material of the metal surrounding each of the openings 16 is drawn downwardly somewhat in the shape of a cone as at 26 whereby to dispose the opening 16 materially below the plane of the body portion 20 of the metal. In fact, the opening 16 is preferably drawn substantially into the plane of the high point of the curved edge 17 of the ends 12 and 13. Further, the lower end of the cone 26 is somewhat fiat whereby to provide material 27 surrounding the opening 16 and against which the rivet may be upset or headed.

The metal may be drawn to provide the cones 26 whereby to have the openings 16 disposed in planes below the plane of the body portion 20 of the metal either before or after the sides 18 and the ends 12 and 13 are bent into their proper positions. With the sides and ends in position and the cones 26 formed to dispose the openings 16 in the desired planes, the metal is disposed on the back 25 as clearly shown in Fig. 8. Short rivets or eyelets 28 may then be passed through the back ano the openings 16 and upset or headed as by any suitable tool-29. (See Fig. 8.)

TV hen the parts are secured together, the back, not being ordinarily made of heavy substantial material but of light cardboard, will be drawn against the curved lower edges 17 of the ends and will tend to assume the shape of said edges. That is, the binder will have a round back as is desirable and the back will tend to retain its shape owing to the engagement between the back and the rounded or curved edges of the ends. This effect is increased when the front and back cover sections are folded together in front of the body portion 20. Further, since the portions 27 of the metal about the opening 16 are in direct contact with the back, short rivets or other securing means may be used for securing the parts together and the cost thus reduced. Moreover, since portions of the metal directly engage the back about the openings 16 through which the rivets pass it will be apparent that the rivets can be set up tight and a substantial connection provided. This effectively holds the metal from shifting back and forth and therefore holds it securely in proper position. There is no danger of the rivet drawing the back inwardly to make it unsightly by concaving it or to pull the rivet through the back. Also the rivets are directly in the central or strongest and most rigid portion of the metal.

It should also be noted that the lower edges of the sides or side walls 18 of the metal engage the back for the entire length of the metal and the back is thus additionally supported. Since the portions 27 of the metal engage the back about the points where the rivets or other securing means pass through the back it will be apparent that a good strong conn ction is provided and that the back will not shiftor wabble relative to the metal. Moreover, the portion of the back between the sides 18 of the metal will not be drawn into the metal or concaved in the op- I eration of applying the rivets and further will not sink into the metal through its open under-side after the binder has been used.

The advantages pointed out in connection with the present structure are obtained without increasing the cost of manufacture and are, as a matter of fact, obtained and at the same time the cost of manufacture lowered. As above pointed out shorter rivets or other securing means may be used and the material forming the cones 26 is obtained by drawing portions of the metal surrounding the openings 16 whereby the metal is formed of the usual quantity of material, no extra material being required for the purpose of disposing the openings 16 in the lower plane.

Havin thus set forth the nature of our invention, what we claim is:

1. In a loose leaf binder, a back member, a hollow metal member open at one side and having said side disposed against the back, the side of said metal remote from the back having spaced openings intermediate its ends for the passage of means to secure the metal and back together, a portion of the metal about each of said openings being drawn down to dispose the perforated portions of the metal against the back whereby short securing means may be used for securing the back and metal together with portions of the metal about the openings directly engaging the back.

2. A loose leaf binder comprising a back, a metal, said metal including side walls, said metal intermediate its ends having spaced openings for the passage of means to secure the back and metal together, and only a portion of the metal immediately about each of said openings being drawn down to dispose the perforated portions of the metal substantially in the plane of the lower edges of the side walls whereby short securing means may be used for securing the metal to the back and whereby the lower edges of the side walls of the metal and portions of the metal about the openings directly engage the back when the back and metal are secured together.

3. A loose leaf binder comprising a back, a metal, said metal including side walls and end walls having rounded lower edges disposed to extend below the lower edges of the side walls, said metal intermediate its ends having spaced openings for the passage of means to secure the back and metal together, and a portion of the metal about each of said openings being drawn down to dispose the perforated portions of the metal in the plane of the lower edges of the end walls whereby the lower edges of the side and end walls of the metal and portions of the metal about the openings directly engage the back when the back and metal are secured together and whereby the back is shaped by the rounded lower edges of the end walls.

4. A loose leaf binder comprising a back, a metal including end walls having rounded openings directly engage the back when the back and metal are secured together and whereby the back is shaped by the rounded lower edges of the end walls.

In testimony whereof we afiix our signatures.

HENRY MORGAN KELLOGG. JOHN AHLBIN.

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