US389891A - Book-ieveler - Google Patents

Description

(No Model.)

W. M. KINNARD.

BOOK LEVELER.

No. 889,891. y Patented Sept. 25, 1888.

Pmmumognph'ur. wmingwn. D: C.

Darren Sterns WILL M. KINNARD,

Parent Ormes.

OF DAYTON, OHIO.

BooK-Leveren.

SPECIFICATION forming part of Letters Patent No, 389,891, dated September 25, 1889.

Application filed March l2, 1888. Serial No. 266,970. (No model.)

T0 @ZZ whom, t may concern;

` Beit known that l, \VILL M. KINNARD, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Book-Levelers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specitication.

My invention relates to an improvement in `book-levelers to be applied to books used for recording or writing, for the purpose of preserving both pages of the open book at the same or substantially the samelevel. Where writing is to be done in alarge thick book, it' the book is opened at or near the middle, both pages will be at about the same level; but it' opened at or near the beginning or end one page will be much higher, and in order to do good work or write easily it is necessary to raise the lower portion of the book and support it at a height or level corresponding with the other portion.

My invention consists in providing an adjustable support for that purpose which shall be attached to or form a part ofthe cover of the book, always at hand for use, or, when not in use, ineased in the cover of the book and out of the way.

In the accompanying drawings, Figure 1 is a perspective view of an open book with my adjustable leveler in position of use. Fig. 2 is a vertical longitudinal section of the cover or lid of a book and the leveler. Fig. 3 is a plan view ofthe outside ofthe book with the leveler shut up or incased in the lid or cover. Figs. it and 5 are details of construct-ion shown in Fig. 2. Fig. 6 is a cross-section showing adjusting device.

Like letters of reference indicate identical parts in all the igures.

A A are the pages of an open book as the book is shown opened near the beginning. Without some support the page A would be at a lower level than the page A.

Bis the cover or lid of the book. In the outside of this lid or cover B is cut a groove or slot, F, to receive the leveler, which consists of the narrow plate or arm C O. rIhe two arms are hinged together at D, so as to Vform an elbow. Along the sides ofthe groove F, I provide two parallel plates, H H. These plates H H are sunk into the lid so as to be iiush with v'its outside surface, and are sutti- 55 in any convenient way, while the free end of' the arm C slides between the plates H. Beneath the plates H H are springs L L, to which the end of the arm C is attached by pins Z. These springs press against the under or inside of the plates H H and force the end of the arm G down int-o the ratchet I), provided along the bottom of the groove or slot F. Of course any convenient form of spring may be used for holding the arm O' against the ratchet.v As the arm O O is bent at thejoint or elbow D into the position shown in Fig. 2, the free end of the arm C slides along on the ratchet P, engaging with it at whatever point it may be desired and holding the arm bent at any desired angle. The elbow D, resting against the desk on which the bookis supported, lifts and supports the lid or cover B at whatever point is necessary to bring the page A on the same level with page A.

vVhen the leveler is not in use,it lies straight or flat in the slot, as shown in Fig. 3, iiush with the outside of the book, entirely out of the way.

For the more convenient adjustment of the leveler C C', I provide on the inside of the lid a little button or thumb-piece, R, whose neck or shank slides in a narrow slot along the in side ot' the cover parallel or corresponding with the slot or groove F. rlhe lower end ot' this shank is att-ached to the free end of the arm C', so that by pressing upon the button It the springs L L are depressed andthe arm C treed from the ratchet to be adjusted at any point. The pressure on the button being then released, the arm C at once engages with the ratchet and secures the leveler in position. A similar leveler can of course be used in each eoverorlid, and may be modied in shape and details of construction. The spring also may be dispensed with, if desired, as the weight of the book will always hold the arm against the ratchet I?, though I prefer to use it with a Spring.

Having thus fully described my invention,

what l claim, and desire to secure by Letters and springs for holding the arln C in engage- 2o Patent, isment with the ratchet, substantially as and l. A11 adjustable lever for raising the cover l'or the purpose described. and leaves of an open book, consisting of a 4L. A. book having its cover or eoverspro- 5 hinged arnl ineased Within the cover of the vided with adjustable arms for leveling the book, its free end arranged to engage with a pages of the book when open, and sunk in the 25 ratchet for adjusting and holding it in posilid of the book When not in use,and adjustable tion, substantially as and for the purpose deby means or" a ratchet and spring, substanscribed. tiall y as described.

Io 2. A book-leveler for leveling the ooverand 5. An adjustable arm for leveling the cover leaves of an open book, consisting' of' a hinged and leaves of an open book, sunk in the lid of 3o arm, C C', sunk in the lid of the book when the book, and arranged to be drawn out and not in use, and capable of being bent ont and adjusted at any height, substantially as and adjusted at any desired angle, substantially as for the purpose described.

I5 and for the purpose described. i)

3. Abookleveleriorleveling the cover and VILL M LINNALD leaves of an open book, consisting of a hinged XVitnesses: arm, C C', pivoted to the cover of the book, in Gnoinon II-InilmAN, combination with the plates H H, ratchet l?, ARTHUR STEM.

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