US1995590A

US1995590A - File for perforated sheets

Info

Publication number: US1995590A
Application number: US644355A
Authority: US
Inventors: Staab Ludwig; Staab Gisela
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-11-30
Filing date: 1932-11-25
Publication date: 1935-03-26
Anticipated expiration: 1952-03-26
Also published as: GB389430A; FR746475A; NL34300C

Description

March 25, 1935. STAAB ET A 1,995,590

FILE FOR PERFORATED SHEETS Filed Nov. 25, 1952 Patented Mar. 26, 1935 v UNITED STATES PATENT OFFICE 1,995,590 FILE FOR PERFORATED SHEETS Ludwig Staab and Gisela Staab, Munich, Germany Application November 25, 1932, Serial No. 644,355

In Germany November 30, 1931 f 4 Claims. (Cl. 129-23) We have filed application in Germany on which carries the strip fis first opened, the binder November 30, 1931. element 0, d, e then drawn out of the pile of sheets,

Various devices have already been made known' the new sheet inserted or the desired sheet 'refor filing and holding together paper sheets with moved and the binder element then again placed marginal perforations in document, pamphlet or in position.

book form. The commonest form of such device Figs. 4 and 5 illustrate a form of execution of consists of a screw spring, which is screwed into the present invention for filing and holding tothe perforations. This device has the disadvangether a thick pile of sheets of I any desired size tage that the removal and replacement of sheets in the form of a book. The marginal perforais difiicult and time-consuming. The screw tions b may be arranged closer together or fur- 10 spring must also be. prevented from becoming ther apart, according to conditions. The binder loose, for which purpose its ends are bent inelement in this case has several prongs 0, each wards. When removing or filing sheets, it is of which is formed into an open ring d, the intherefore necessary to out 01f these ends, so that dividual prongs and rings being connected with the safeguard is again lost. The sheets must also each other by means of the tie bar or bars e. 15 be perforated very narrowly, since only screw This element can also be made of a single piece springs with a low pitch of thread can be em-' of wire, as shown in Fig. 6, the inner prongs and ployed. rings then consisting of a double wire, this in- The present invention removes all these disad-- creasing the rigidity of the element. Further,

vantages by providing awire binder removably atthe two wires of these inner prongs may be 20 tached to the cover of the file, the prongs of which twisted together, or otherwise connected, for inform rings partly open and connected by a transstance, by steeping in a metal bath, or by solderverse bar. ing and the like, Or again, the same end may The accompanying drawing shows different be attained by arranging several two-prong ele- 5 fornis of execution of the resent invention. ments according to Figs. 1 to 3 beside each other Figure 1 illustrates a perspective view showing and fastening them together by suitable means. one form of the invention; In the form of execution according to Figs. 4 Figure 2 illustrates a side elevation of the and 5 a pocket his provided on the cover 9 of the wire used in this form; file or book, into which pocket the prongs 0 may 3 Figure 3 illustrates a plan view of such wire; be pushed and thus held in position.

Figure 4 illustrates a face view of an open book Fig. 7 is a view of the back of the book or file, showing a slight modification of the invention; which is enclosed by therings d. A pin or wire Figure 5 illustrates a top view of Figure 4 i may pass through the rings d and have its ends Figure 6 illustrates a perspective view of the riveted or otherwise suitably secured to a book 5 wire employed in thismodification; cover g so that the rings are held from detach- Figure 7 illustrates a perspective view showing ment from the back. a number of leaves held by the modified wire; Fig. 8 shows another form of the means for Figure 8 illustrates a face view of an open book locking the binder element in position; this conembodying a third form of the invention; sists of a spring fork is fastened to the file cover Figure 9 illustrates a face view of an open book 9, the ends of whi h k n a w th t rin s 4 embodying a fourth form thereof; and d of the binder element. In the case of heavy Figure 10 is an end view of the device shown in books, the locking position of the entire binder Figure 1. element may be attained by means of a piece of Figs. 1, 2 and 3 show one form of execution of cardboard, metal or other suitable material i1- the present invention, in which a are loose sheets dented along one side, as shown in Fig. 9. Tlis with the perforations b. The filing device in this indented piece I is also pushed into the pocket case consists of a binder element of wire or other 71. of the file cover above prongs c and engages suitable material with two prongs c of suitable with the rings d, thus holding themin position. length, which are formed into rings d at the What we claim as our invention, is:

5 base of the element and connected by the tie or 1. A loose leaf binder including a wire binder 5 bar e, The prongs c are removably attached to formed of a single piece of wire having a pair of the cover g of the file, for instance, by means of substantially parallel open ring members having a strip of suitable material f held to the cover by corresponding ends connected by a straight tie releasable clips I such as ordinary paper fasportion perpendicular to the planes of the rings,

teners. To insert or remove a sheet, the sheet the remaining ends of said rings being extended 55 tial portions each lying substantially in the plane of a respective ring, the two ends of each of said rings being spaced circumferentially from each other to leave a gap between said ends.

2. A loose leaf binder including a wire binderformed of a single piece of wire having a plurality of pairs of parallel open ringmembers, the ring members of each pair having corresponding ends connected by a straight'tie portion perpendicular to the planes of the rings, said tie portions being longitudinally alined with each other, the ren laining ends of the rings'being extended in par allelism to each other and forming tangential portions each lying in the plane of a respective ring, the tangential portions of the adjacent rings of the pairs, being connected together by bends in the wire to form' a continuous wire structure.

3.-A loose leaf binder including a wire binder formed of a single piece of wire having a pair-of substantially parallel open ring members having corresponding ends connected by a straight tie portion perpendicular to the planes of the rings,

the remaining ends of said rings being extended in parallelism to each other and forming tangential portions each lying substantially in the plane of a respective ring; in combination with a file cover having a pocket wherein said tangential portionsengage.

4. A loose leaf binder including a wire binder formed of a single piece of wire having a plurality of pairsof parallel open ring members, the ring members of, each pair having corresponding ends connected by a straight 'tie portion perpendicular to the planes of the rings, said tie portions being longitudinally alined with each other,

the remaining ends of the rings being extended in parallelism to each other and forming tangential portions each lying in the plane of a respective ring, the tangential portions of the adjacent rings of the pairs being connected together by bends in the wire to form a continuous wire structure; in combination with a file cover having a pocket wherein said tangential portions engage.

LUDWIG STAAB.- GISELA STAAB.