US2466581A - Geographical globe - Google Patents

Description

April 5, 1949. B. H. DARROW GEOGRAPHICAL GLOBE Filed Sept. 10, 1947 INVENTOR. BENJAMIN H. DARROW.

BY I 5Y5.

Patented Apr. 5, 1949 um STAT mrremr I Q 2366,581 I c1:oie.Re inal;r;- amen d Benjamin H Darrow, omnibus; out I Alzl l wfionep ember 1 ast-serializ use!) The preseht invention relates generally to ed11- cational devices and" is particularly concerned with a novel globe which isreadily and economically'con'struct'ed and-easily used.

It. has'lohgbe'en customary to make terrestrial glebes without mea s attachedthereto for measu'ring distances on the globes. In instances where such means have been provided, they are normally attached to a globe-supporti'ng'flttihg at" the North Pole, for instance, and are in the" form of tapes which are permittjed'to lie'on the globeof'harig' therefrom whe'rinot in use. Such tapes are quickly soiled and in such condition present an unpleasant" appearance and detract from theapliearance an'd'dimfi'nish the utility of the globe; and are consequently not generally used.

By virtue of my invention it" is'now; for the" first time to my knowledge; possible to attach to a globe measuring means which will' not de" tractfiom the appeaman''ce of the globe despite" s'oilage" and wear, and will'n'ot substantiallyr'e duce the" useful surface area; of the 'elobe o'r'" diminish'itsutility. Furthermore, in accordance with thisinvention such measuring mean's'm'a'y be provided at a s'mall'c'ost; the partsc'omprisin'g themeans in any of'its 'several'f'orm's beihgreadily arid"cheap1y'bbtainalble. In agny'ofits' several, forms, iii fact, the means of my invejn'tibin' is readily installed, requires no maintenance and is fully'automatic insofar as removal of the 'niea'n's fr'omsight after each useis concerned; A further' advantage of my ixiventiorf includes" the adaptabilityof the measuring means to" use on" maps 1 applied toglobes as zipper skins, for in'-- stance, whichskihsare pr'ovided with apertures to permit passage of" measuring means there through, Furthermore, the globes of-this'invent'iommaybe produced at very small costcom"- pared to globes of the same sizewhich ently available on the market.

Thoseskilled" in the art will gain" a: further understan'difig of the nature of this invention and are'pres ma'n'ner in which it may b u q' the drawings accompa y and forming a part Ofithi'sspecification, in which Figure '1' is a view ih'sectiori of a" terrestrial globe embodying-one form of this invention; and Figure 2 is a=-view partly in l section of another terrestrial globe equipped with' means 4 of this iiivention and carrying adetachable map:

The gliibe of F'i g. 1 comprises two l'ieii'trispherical sections I0 which are joined together and secured to supporting.- means including a table oi base and otelteb y' s cured-ti) aid-shaft The sha t i 'temov blys urea'tb' bas f 8'11 extends It???" warcu therefr m, ilrh imetel ii" 2.3% deg ee Q'm verti al" i through a aperture p he bwe p t q'ii (south Polf o l e sla s E'iamei ball. S in a central aper ur a d-f ur-fequ globe is"provid'ed'with an aperture at the North ole defined by a grommet "and an ther aperr near h equator defin d by a grommet l8 nd with means; disi o' d' it n he g o or meas, ixfi'g dista'zjcefs' on its outer surface;

he measuring means'iri one term comprises" a-eauurateu tape 20 having an end' p iftiori ex! eiidii thrbfls om a rin 21 s cu ed" tbsaidfehdport n; rid reel 2 3 carried by abra'cke't' 25' weldedto' one of the ari'ns'of frame g5 [Fahd provides with aspring 26' for rotati r ig the reel ndidr'awingme't'aiiewlth'm the. globe or mieintaiiiir gi t c ne taut i ustrated n! ig i i h r b m/w -cli' is 'alsi 'inus: weed i Fig.4 e' measurin mea' again compt s a at d ape 1 havin an end nqtt dnj x i i 'g hr u h gl'iili nri 1 r ng 28 secured" to said endpprtionj; ;a; weight-ZS- at tame to the otherend" or tape" 21* within the globe, and a bracket 30" Welded to one of the arms of' frame If andhavi g an aperture iii its upper enia, through which the tape is threaded thus to;- maintain the tape as shdjwh mire 1-,. i F9 thd w 't p iifid .1 globa iis- Tapes" 20 and :1; are preferablyof cloth or u a le; tra a nt, substant ally in last c" bu flx blesynthetic'resin, such as 'ordidari me hy metha'crylate polymer, and are so dimensioned as topass readily throughgiiorximets" l1 l8". Since a? weig t" refl ctor cahu'ot automati a ly e heap sfu l lane b efer h si rin'e re eltype of retractor'; which enables" the use of t'ape of efiectivelength substantially greater than necessary to coinpletialy encircle"the globe;

Hemispherica l sections lD'may' be of; a'n'ysuitable material, such" as metal or" papi'er" mache; but l p'refer that they be spun u t n' ihuhr fbr conveiiien'ce in 'assemblihg thefi obewithbut ex? ter ally marking the globe; n'iirlets l1 and l-Bf ouhtmbt to b'e subst'ahtiailly abrasive to or l-l carryingiashaft l2, 'and a frame l3 1 emovabl3fi 5 5, abradablef yj-thtiMsflaadf are jireferdy 33 secured to the outer ends of the tapes to.

pass therethrough in order that the 'tapesmay be moved over the surface of the skin. Map M is a single piece, preferably of cloth but suitably 1 of synthetic resin which is inelastic but flexible H like cloth, having zipper tracks 35 secured to its" two edge portions and a zipper lock 35 carried by one of said tracks.

have interlocking edges 39, the upper hemisphere having a slightly smaller diameter than the lower one and overlappinga portion of the edge of the lower one around its circumference. is not provided with internal bracing means such as beams l6 but has a reel 23 for retractin measuring tape 30 secured to'the lower hemi-. sphere by studs (not shown). Also unlike the Fig. 1 globe, this one is mounted on a saucershaped platform 40 of papier mache or equivalent material shaped to engage a portion of the spherical surface of the globe. That is, the upper surface of the platform or base is concave and of substantially the same radius as that of the globe, and has a substantially plane bottom sur'-' face to engage a table top or similar plane surface.

The globes of this invention may be provided in several parts for assembly by students to assist their understanding of the constructionrof the globes and of the geographical relationships between various portions of the globe, and also to minimize the expens of the globes. For instance, table H, shaft l2 and hemispheres l may be furnished as individual elements, and the frame [3, brackets 25 and 30, and reel 23 may be provided as a sub-assembly. Using the foregoing basic parts, the globe may be constructed, as illustrated in Fig. l, by placing the lower hemisphere in the position shown with shaft l2 extending through the aperture in the lower part of said hemisphere, fitting frame I 3 on the upper end of the'shaft so that ball I 5 engages a necked portion of the shaft near its upper end. Tapes and 21 are then secured in position in engagement with reel 23 and bracket 30, respectively, threaded through grommets I! and I8, and engaged with rings 2| and 28, as illustrated. The

hemispheres are then secured together and pressed into firmand fastening engagement with the ends of arm, ll. The second globe may likewise be readily assembled, the steps in this case involving simply engaging the edges 39 thereof as shown, after fixingltapesl20 and 21in place.

Map M may be applied to the finished globe by placing the map on the globe with apertures 32 in registry with the apertures defined by grommetsfll and lBjand closing the zipper tracks with lock 35 so that said lock is disposed adjacent to the South Pole aperture of the globe,leaving an opening through which shaft l2 passes.

Other maps M may be substituted for the first one or applied to the globe over said first one, if they are sufficiently large. c Having thus described the present invention so that those skilledin the artmay be able to understand and practice the same, I state that This globe is also composed of two hemispherical sectioiis'38, but these are of papier mache or equivalent materiaLand- The globe what I desire to secure by Letters Patent is defined in what is claimed.

What is claimed is:

1. An educational device comprising a hollow globe having an aperture, means for measuring distances on said globe, and means for automatically retracting said measuring means into said globe through said aperture and retaining said means. therein when not in use.

2.1An educational device comprising a hollow globe having an aperture, flexible means for measuring distances on said globe, means for automatically retracting said measuring means into said globe through said aperture and retaining said means therein when not in use, and

means for preventing retraction of said flexible means beyond a predetermined point.

3,-An educational device comprising a hollow globeh'aving an aperture, means for measuring distances on said globe, and means for automatically-retracting said measuring means into said globe through said aperture and retaining said means therein when not in use, said measuring means comprising acalibrated 'fiexible tape, and said automatic means comprising a spring within the globe securedto the globe and to said tape.

4. An educational device comprising a hollow globe having an aperture, a flexible calibrated tape for measuring distances on said globe, and means for automatically retractingsaid measuring means into said globe through said aperture and retaining said means therein when not in use, said automatic means comprising a weight within the globe and secured to said tape.

5. An educational device comprising a hollow globe model of the earth having an aperture, a map on the globe depicting the earth and having an aperture in register with the aperture of said globe, and having a slide fastener to facilitate application of the map to the globe, a calibrated, flexible tape disposedpartially within said globe for determining'distances on the globe, means including a spring in the globe secured'to the globe and tape for automatically retracting the tape into the globe through said aperture and retaining said tape'therein when not in use, and means connected to the end portion of the tape outside the globe for preventing said portion from being drawn into the globe bythe action of said spring.

6. An educational device comprising a hollow rotatably mounted. globe having a plurality of apertures defined by small metal eyelets, a plurality of means for measuring distances on said globe, and a plurality of means for automatically retracting said measuring means into said globe through said apertures and retaining said means therein when not in use, said measuring means comprising flexible calibrated tapes.

'7. An educational device comprising a hollow.

globe having an aperture and comprising two hollow papiermache hemispheres having interlocking edges, means for measuring distances on said. globe, means for automatically retracting said measuring means into the globe through said the measuring means for limiting the extent of retraction of the measuring means into the body, said limiting means comprising an element too large to pass through said aperture in the body.

BENJAMIN H. DARROW.

No references cited.

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