US1706911A - Leaf of loose-leaf books - Google Patents

Description

Patented Mar. 26, 1929.

UNITED STATES PATENT orifice.

LEAF OF LOOSE-LEAF BOOKS.

Application filed August 5, 1927, Serial No.

This invention has relation to leaves for use in loose leaf books or binders and has :For object the provision of a leaf especially adapted for use in systems ot bookkeeping; in which the leaf is removed from the hook or binder and placed in a typewriter or addingmachine by which the entries are made. The invention further has for object the provision of.' a lea-E` which may be caused to project beyond the other leaves ot a book, or, in other words be off set, for the purpose olf providing,` ready and easy reference to such sheet.

A loose leali, in accordance with this invention has a part oit the one end cut away so to torni straight sided projections without imdercrtting` and a hole through 'which the lookin or biinling` post extends.

A loose leaf, in accordance with this involition, has at least two projections, the iree edges of which are in alignment, and

. the intermediate cutaway portion has a Ala?.

tree edge which is parallel with those ot the projections. Ur the cut-away portion is shaped so that its edge extends vor billiges towards an imaginary line joining; the 'free edges of the projections: Parts of the edge of the cut-away portion may extend to suchA line and be aligned with the iree edges of the projections.

The hole ttor the locking;l or binding post o'i" the binder or cover is preferably placed cent 1ally o?? the two projections and may be such that it permits the leaf to be moved sideways relatively to the locking or binding; post so that a portion thereof projects beyond the other leaves, or, in other words, the lealE is 'oll' set, and thus constitutes a marker. Y

ln order that the invention, the object and nature of which have been set' l'orth, may he clearly and readily understood, reference will new be made to the. accoinpanying` sheet o'l drawings on which Four embodiments oli the invention are illustrated.

Fig. 1 is a :face view showing two leaves placed the one on the other, one being` displaced relatively to the other or on set.

Figs. 2, 3 and 4; are similar views to Fig. 1, each ot leaves of modilied form.

Referring to Fig. 1;

Each leat 1l has a part of on-e end cut `away so Vas to `form two straight sided projections 12, 13 without undercutting. Each `leali 11 also has a hole 141 through which the locking or binding post of the binder or 210,892, and in Great Britain May 8, 1927.

cover extends. The free edges ot the projcctions 12, 13 are aligned and the free edge ot' the cut-away portion is parallel with those o'l. the projections 12, 13. The hole 111. is placed centrally between the projections 12, 13 whether the projections be of like or unlike width. ln the embodiment illustrated, they are ot unlike width, the projection 18 being the wider. lVhen the leaves 1.1 are made with projections 12, 13 of like width, ready and easy reference to any particular lea'll is afforded by means of book markers. llihen the projections 12, 13 are of unlike width, any particular leali is'rendered distinctive by oli setting that leaf and this is accomplished by turning the leali over so that its projections 13, 12 lie upon the projections 12, 13 oi the next sheet. In Fig. 2 the tree edge ot the cut-away portion oil? lcat 112L is such that jgntrts 1.5, 16 extend direct] f lroni the inner parteI or roots ol the proj( tions 12, 13 respectively, towards an iniagiifiary line joiningr the lree edges of the projections 12, .13. A part 17 oli the free edge of the cutaway portion entends to the iinaniiniry line and such part is aligned with the ,tree edges ol the projections.

In Fig. 3 the leaves 11" have three projections 12, 13', 18 and two holes 141, 19. The hole 14; is placed centrally between the projections 12, 13 and the hole 19 centrally between the j njejections 12, 18. Also in this leali' the part 1.5 ot the cut-away portion does not extend directly from the 'inner part or root of the projection 12 but is joined therewith by a part 2O which parallel with the tree edge el? the projection 12. Ordirmrily the leaves 11D `rest on or engage carriers or posts which contact with the projections l2, 13.` Ui'lisetting` elliected by moving the leali to the left so that the leaf rests on or engages the one carrier or post by means of the cut-away portion between the projections 13', 18 and rests on or engages the other carrier or post by means o'l' the part 2U. liVhen a leaf isvollset, its hole 19 coincides with the holes le of the other leaves.

lnFig. l the leaves 11c have only two projections 12, 1 3 and one hole 141-, and the latter is of greater width than the correspondingly numbered hole in the other iguros ol the drawings. Also the parts 1:3, 16 of the cut-away portion are united with the inner parts or roots of the projections 12, 13 by parts 20, 21, respectively, which y are parallel With the free edges of the proe jections 12, 18. VOrdinarily a leaf engages or rests on the carriers or post-s by means vof the parts 20, 21 With the projection 12 contacting with one carrier or post and ofi'- settmg is veffected bymoving a sheet to the left so that the projection 13 contacts with the rother carrier'or post. The hole 14, by

such movement, isv in eect reduced to a sizeV the ost tv e havin@- on one edOe )ro'ections v L Y o a A l f spaced apart4 to engage the outer sides ot the posts and provided With a hole for the locking post betWee-nithe projections.

2. A leaf for use in loose leaf books of the post type having on one edge projections Vspaced apart to engage the outer sides of the posts, the edge of the part between the project-ions being parallel with the outer edges of the projections, and provided with a hole for the locking post between the projections.

3. A leaf for use in loose books` of the poet type having; on one side projections which extend beyond the main portion of the edge of snch side, the space formed by and between the projections being adapted to receive posts of tliebinder, and said leaf being provided with a hole in its main portion situated bet-Ween the projections to receive the locking post.

Dated this: 22nd day of July, 1927.

VALTER HENRY BROXVNITTG

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