US2711330A

US2711330A - Wheeled book carrier

Info

Publication number: US2711330A
Application number: US356229A
Authority: US
Inventors: Frye Karl Edgar
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-05-20
Filing date: 1953-05-20
Publication date: 1955-06-21
Anticipated expiration: 1972-06-21

Description

June 21, 1955 K n 2,7,33o

r wHEELED BOOK CARRIER Filed a 20, 1955 l/ll//ll/llllllllllllll ttomeg WHEELED BO Karl Edgar Frye, LincolnfNebr. i Application May 20, 1953, SerlalNo. 356329 2 Claims. (CL, 2so 47.z6

This invention relates to a device for transporting books having particular utlity in librares and other places where a great number ofbooks are daily trucked over short distances.

Manually operated book carts which are employed to haul medium and large size books from one local point to another should have a structure designed to meet certain desirable objectives. In view of the relatively large cumulative weight of stacked books, the cart should be as light as possible without sacrificing other de sirable features such as strength and durability. The cart must be capable of securely retaining the books in place during travel and yet permit their easy access and removal. This invention contemplates an improved book carrier which anticipates these desired features.

Generally the book carrier comprises a two wheel device which provides a rearwardly inclined book; sup-` porting plate directly secured by a bracket to the wheel axle having a foot projection secured to the unde'rside of its forward portion insuring that the books supported thereon will not ptch forward when the carrier is in an upright position. The books are stacked on thisplate and are prevented from fallingvthrough the device 'rearwardly by at least one and preferably two pairs of complementary side frame bars. The relative placement of these complementary bars with respect to each other is an important feature of the invention. Assurning: that the carrier is used to transport books of library edition size, as opposed to the pocket or bantam sizes, the distance separating the side frame bars of one pair is' made less than the short side of most of such editions intended to be carried by the book cart. It is thus imp'ossible for the books to fall through the back of the cart.` The books are stacked cornerwise. The complementary bars can be spaced sufiiciently far apart that two sides of each book are supported to prevent the books from escaping v to either side. Accordingly the stacked books are safely supported without the need of an additional bar supported at the rear of the book supporting plate which interferes with the stacking and removal of the books.

Since for large carriers these bars are the largest single V components, a significant saving in weight is effected.

As a further precaution against side movement a second pair of complementary bars may be provided. These bars are spaced farther apart than the first pair of bars and disposed forwardly thereof. The two pairs of bars thus provide a V-shape channel for the stack of books.

The means for supporting the book supporting member and side bars are specially designed to lend strength to the carrier. These and other features of the invention will be apparent on reading the description in connection with the drawngs in which:

Fig. 1 s an isometric of the book carrier;

Fig. 2 is a side elevation of same;

Fig. 3 is a section in plan taken on line 3-7-3 of Fig. 2; and

Fig. 4 is a section taken on the line 4 -4 of Fig. l.

A book supporting member 5 is secured to sleeve 6 bym'r'ea'nsof a pairof side 'tub'lar brackets7 and 8. "The member zs is rectang'lar in shapezxand 'vis'disposed with .one corner -directedtowardthe sleeve :61 Its 'interier portion' is partially-open to elminate unnecessaryzweight support. The members s rearwardlyinclined and has e secured to the undersde of its forward portion a foot projection 11.- i u t V Attached to the two sides of the book supporting member 5 nearest, the sleeve 6 is a pair of complementary

side frame bars

12 and 13 extendng vertically with=respect to the member 5., These bars are spaced sutficiently close 'together that books of ordinary libraryredtion size cannot 'pass between them regardless of their disposition( For example, if the bars were spaced no greater than *five inches apart, very? few bookscommonly seen ;on

library shelves would be capable of falling through the i back of the carrier. The placement ofthe bars is such that they serve to prevent the books fromescaping from the carrier either to the side or to the rear. As shown ,a

second pair of complementary side frame bars Hand 15are disposed in parallel 'to the first pair being supported by the book supporting member 5 'at its intermediate corners. The-two pairs of side frame bars'accordingly form a V-shaped trough which has no need for any type of'weight contributing closure at itsapex. i t

The side frame bars are connected by two spanning 'elements 16 and `17 at the top of the device. A handle 18 is' joined at the juncture of the spanning elements.

supporting bars 19 'and 20 connect the side frame bars" on each side of the carrier.

Because the book supporting member 5 and the 'side frame bars bear the direct burden of the book load, separate means are provided tosupport them. Whilethe

brackets

7 and 8 support the member 5 with respect to the sleeve 6, `the ,side bars are independently secured threto by

braces

21 and 22. r Each supporting means therefore strengthensthe carrier without'dependng on each other toaccomplish'their special function.

An axle 23 extends through the sleeve 6. The ends of the axle project 'through the

sleeveand wheels

24 and 25 and are mounted for rotation thereon.

It is obvious that alterations may be etfected in the structural design' of the above described book carrier within the scope'and principle of the invention by one `skilled in the particular art.

It is understood that the invention is to be defined and limited only in accordance with the apperded claims.

, What is claimed is:

l. A hand truck for .books or the like -comprising a substantially square platform, a pair of upright parallel bars attached to the top of 'the platform at opposite corners thereof, a second pair of parallel bars disposed in a plane parallel to that of the first pair and attached to the top of the platform at the marginal portions thereof at the rear of and extending parallelto the first pair, whereby the two pairs of bars define a rectangular V-shape rack 'coincident'wth the rear half of the platform,`rearwardly exte'nding brackets secured to the platform, a wheel axle carried by the brackets,`a foot carried by and depending from'the front corner of the platform of a length to maintain the truck in rearwardly tilted position, and two members disposed in a V and joining margnal supporting surface and a fiat piece extending.

diagonally across the square in the plane of said surface and secured to the opposite corners of the platform mem bers, a pair of parallel upwardly extending bars attached at their lower' ends to the said opposite corners of" the a eot ciepe ding frorri the front corner of the pltform bars .dispnsed .in a .plane .parallel/to `the ?first pair. and

attached at their lower ends to the platform supporting surface at the rear of the first pair and extendng Upward paralle'l to the first pair, the :diameter of' the rods bei'ng less than` the width .of the supporting faces of 'the angle members, whereby the two ;ars of bars' dene a rectangular V-shape rack open at the apex, rearwardly extending brackets Secured to the said opposite cerners of tii e platform, a wheel axle carried by the `brackets, and 10 Attached :@the .under faee of the angle members and of a length to maintain the truck in rearwardly tilted position.

References Cited in the file of this patent UNITED STATES PATENTS 1,722,193 Brandon July 23, 1929 2,368,752 Ds Feb. 6, 1945