Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2545844 A
Publication typeGrant
Publication dateMar 20, 1951
Filing dateDec 22, 1947
Priority dateDec 22, 1947
Publication numberUS 2545844 A, US 2545844A, US-A-2545844, US2545844 A, US2545844A
InventorsGus Cougias
Original AssigneeGus Cougias
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Automatically adjustable bookrack
US 2545844 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


Application December 22, 1947, Serial No. 793,194

1 Claim.

My invention relates to automatically adjustable book racks.

7 An object of my invention is to provide a selfadjusting book rack, having book supporting ends slidably interconnected by mating tongue and groove extensions formed on the lower inside edges thereof to provide an extensible and retractable base upon which a number of books, or like objects, may be placed upright and held in thatposition by the said supporting book ends.

A further object of my invention is to provide a spring means between the two end supports to make my book rack automatically adjustable to the number of books, or other objects, placed therebetween.

A further object of my invention is to provide encasing means which, besides enclosing the said spring means, also provides added rigidity to the base of the adjustable book rack and pre-,

vents the elements thereof from becoming disengaged.

A further object of my invention is to provide a self-adjusting book rack that is simply designed and constructed of plastic or wood so that it may be economically produced in large quantities.

Other objects and advantages embraced in my invention will be further disclosed in the following description and the accompanying illustrations, in which like parts are designated by like numerals, and in which Figure 1 is a perspective view of my invention showing a number of books, in phantom lines, contained therein.

Fig. 2 is a top view of my invention shown in a semi-extended position with parts broken away to show its spring adjusting means.

Fig. 3 is a cross-sectional view of a portion of my invention taken substantially on line 33 on Fig. 2.

Fig. 4 is a cross-sectional view of a portion of my invention taken substantially on line 44 on Fig. 2.

Fig. 5 is a cross-sectional view of a portion of my invention taken substantially on line 5-5 on Fi 2.

Referring to the illustrations, my invention is generally designated 6, and consists of two end supports 1' and 8 which may be of a modern, stream-lined design as shown, or which may be of any desired shape, and which may preferably be made of plastic or wood material.

Formed at right angles on the lower inside of end support 1, in evenly spaced alignment, are .a number of extensions 9, preferably an evefinumber, and formed at right angles on the tension springs l6 serve to pull the end supports lower inside edge of end support 8, in evenly spaced alignment, are a'number of extensions l0, preferably an odd number. The said even and odd extensions 9 and ID are slidably interconnected by tongue and groove means II and [2 formed in the sides thereof, so that the said extensions 9 and It} together form an adjustable connecting means between the book ends 1 and B, and also form a base I! upon which a number of books l3, orlike objects, may be supported between the said book ends 1 and 8. v

Central openings M are formed in the extensions 9 and telescoped therein are a number of tubes I5 attached to the end support 8 between the spaced extensions ID. A number of tension springs it are contained in the central bores l4 and the tubes l5, and their ends l9 and 20 are attached to the end supports 1 and 8. The said 7 and 8 together, and to maintain the said supports I and 8 in the closest possible adjustment to the books I3 which are supported upon the base ll, so that the said spring-held end supports 1 and 8 will serve to maintain the books I3 therebetween in a compact upright grouping, as shown in Fig. 1.

The said tubes 15 are of somewhat greater length than the extensions [9 and the central bores M are extended, at It, into end support 1 as shown in Fig. 2. This arrangement of tubes I-5 and bores It provides a safety feature to prevent the elements of the said self-adjusting book rack from accidentally being pulled apart and buckling.

To assemble the component elements of my invention, the following method is deemed to be suitable. One of the ends of the springs I6 is first attached within the bores 14 in end support 1. The end supports 1 and 8 are then slid into assembly by virtue of their inter-engaging extensions 9 and In. The ends 1 and 8 are compacted to their smallest assembled dimension, and the other ends of the springs l6 are extended, pulled through the bores in spring encasing tube [5 of element 8 and fastened near the end of the said bores in any suitable manner.

Should one or more books l3 be removed from the self-adjusting book rack, the book end supports 1 and 8, urged by springs 16, will automatically adjust themselves to accommodate the changed span of books held therebetween, and in like manner books may be added thereto. The book rack will automatically adjust itself to the number of books held between the end supports 7 and 8 to the extent of its expansibility, only limited by the combined lengths of extensions 9 and It).

My self-adjusting book rack is especially suitable for ofice and library desks Where space is limited, or in places where separate and detached book ends are in danger of being knocked over.

Although my invention has been described, the terms used are to be deemed terms of description rather than terms of limitation, my intention being to retain the right to all mechanical equivalents of the structural elements depicted, provided they fall within the purview of the appended claim.

Having thus disclosed and revealed my invention, what I claim as new, and desire to secure by Letters Patent, is:

An automatically adjustable book rack comprising, a pair of end supports, multiple extension means secured to one of said end supports, extension means secured to the other of the said end supports and provided with longitudinal bores therethrough, said bores extending partly into the other of the said end supports, tension spring means confined in the said longitudinal bores and having their ends anchored to both of the said end supports, tongue and groove means on the said multiple extension means and the said extension means for slidably interconnecting the same, and spring encasing means secured to the first of said end supports slidably fitted within the said longitudinal bores, the said spring encasing means being of greater length than the said multiple extensionmeans to prevent accidental disengagement of the said tongue and groove means while still permitting the said end supports to be retracted to minimum adjustment when the said end supports contact the free ends of the said multiple extension means and the said extension means whereby the added length of the said spring encasing means is received in that portion of the said longitudinal bores extending into the other of the said end supports.


REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,237,101 Ryan Aug. 14, 1917 1,317,550 Cass Sept. 30, 1919 2,110,299 Hinkle Mar. 3, 1938 2,134,606 Hackworth et a1. Oct. 25, 1938 2,294,595 Dice Sept. 1, 194 2 FOREIGN PATENTS Number Country Date 116,584 Great Britain June 16, 1918 359,275 France Jan. 16, 1906 453,516 France Apr. 5, 1913

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1237101 *Nov 17, 1915Aug 14, 1917Louis P RyanBook-holder.
US1317550 *Jul 9, 1919Sep 30, 1919 Ralph b
US2110299 *Nov 23, 1936Mar 8, 1938Edward Hinkle CecilBottle rack
US2134606 *Jan 16, 1937Oct 25, 1938Philip Joseph SchwartzBook rack
US2294595 *Mar 18, 1941Sep 1, 1942Dice Myron LAdjustable book rack
FR359275A * Title not available
FR453516A * Title not available
GB116584A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2959293 *Nov 7, 1957Nov 8, 1960Von Meyer Richard ERecord holder
US3389805 *Oct 24, 1965Jun 25, 1968Dick Yeomans RalphSelf-adjusting telescoping bookends
US3902932 *Nov 21, 1973Sep 2, 1975Ronald C GdanskiHolder for flexible sided container
US4453640 *Aug 17, 1982Jun 12, 1984Ferrero S.P.A.Adjustable, sectional display device
US4535896 *Aug 29, 1983Aug 20, 1985Eldon Industries, Inc.Folding, extensible holder
US5121681 *Jul 11, 1991Jun 16, 1992Chang Wen CExtendible book shelf
US5217122 *Oct 5, 1992Jun 8, 1993Martinez Beatrice EAdjustable bookend apparatus
US5221011 *Jun 17, 1991Jun 22, 1993Coto Julio CNapkin holder
US5295596 *Jun 5, 1992Mar 22, 1994Mechtronics CorporationIn-store display having variable width
US5553824 *Aug 1, 1994Sep 10, 1996Dutra, Jr.; Joseph G.Adjustable length laptop computer tray assembly
US5772046 *Aug 24, 1995Jun 30, 1998Tercher; Richard A.Food storage bag holder
US5871104 *Nov 12, 1996Feb 16, 1999Martinez; Beatrice E.Adjustable support apparatus such as adjustable bookends
US6030061 *Oct 23, 1998Feb 29, 2000M. Kamenstein, Inc.Combination cookbook holder and recipe file
US6079803 *Feb 2, 1998Jun 27, 2000Westerlund Products CorporationCloset organization system and method for installing same
US6142321 *Feb 2, 1998Nov 7, 2000Westerlund Products CorporationAdjustable shelving apparatus
US6332548 *Jul 24, 2000Dec 25, 2001Westerlund Products CorporationAdjustable shelving apparatus
US6354446 *Oct 18, 2000Mar 12, 2002Gene H ChangSpace-adjustable interlocking binder-supporter/bookend/magazine-organizer
US6918565Oct 22, 2003Jul 19, 2005Chun Yuan ChangAdjustable book holder assembly
US6988628May 14, 2003Jan 24, 2006Sauder Woodworking CompanyCloset storage system
US7152746 *Jul 28, 2003Dec 26, 2006New Product Guys, Inc.Media holding device
US8083198 *May 27, 2009Dec 27, 2011Joshua Edward StablerRemovable device configured to secure an instrument and to be mounted on a platform
US8251330 *Aug 28, 2012Joshua Edward StablerRemovable device configured to secure an instrument and to be mounted on a platform
US8950601 *Feb 4, 2011Feb 10, 2015Colleen A. HAGADORNPrescription bottle storage units and medical organizer cases
US9027768Feb 3, 2012May 12, 2015Colleen A. HAGADORNPrescription bottle storage units and medical organizer cases
US9107497Oct 30, 2014Aug 18, 2015Sultan Qaboos UniversityAutomatic book-end system for shelves
US20040055980 *May 14, 2003Mar 25, 2004Krieger Douglas P.Closet storage system
US20040245197 *Jul 9, 2002Dec 9, 2004Mcelvaney OliverShelf management systems
US20050023232 *Jul 28, 2003Feb 3, 2005Henk Keith L.Media holding device
US20050051964 *Sep 10, 2003Mar 10, 2005Dennis NordmanGaming device having display with concentrically rotating and translating indicator therefore
US20050087667 *Oct 22, 2003Apr 28, 2005Chang Chun Y.Adjustable book holder assembly
US20060022028 *Aug 2, 2004Feb 2, 2006Thomas Peggy RAdjustable melevator floor
US20060081546 *Oct 18, 2004Apr 20, 2006Touzani William NMedia rack with alternating fixed and slidable cases
US20100181270 *Jan 19, 2010Jul 22, 2010Gimi S.P.A.Clothes drying rack
US20100301184 *May 27, 2009Dec 2, 2010Joshua Edward StablerRemovable device configured to secure an instrument and to be mounted on a platform
US20120085876 *Apr 12, 2012Joshua Edward StablerRemovable device configured to secure an instrument and to be mounted on a platform
US20120200208 *Feb 4, 2011Aug 9, 2012Hagadorn Colleen APrescription bottle storage units and medical organizer cases
WO2004060119A1 *Jun 27, 2003Jul 22, 2004Handles, LlcExpandable shelf
U.S. Classification211/43, 211/51
International ClassificationA47B65/00
Cooperative ClassificationA47B65/00
European ClassificationA47B65/00