US932852A

US932852A - Educational appliance.

Info

Publication number: US932852A
Application number: US46581308A
Authority: US
Inventors: Thomas Iowa Galloway
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-12-03
Filing date: 1908-12-03
Publication date: 1909-08-31
Anticipated expiration: 1926-08-31

Description

T. I. GALLOWAY.

EDUCATIONAL APPLIANUE.

APPLIGATION IILED DBO. 3, 1908.

Patented Aug. 31, 1909.

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THOMAS IOWA GALLOWAY, OF MENABLD, ILLINOIS.

EDUCATIONAL APPLIANCE.

Specification of Letters Patent.

Application filed December 8, 1908. Serial No. 465,813.

To all whom it may concern:

Be it known that I, THOMAS I. GALLOWAY, a citizen of the United States, residing at lrlenard, in the county of Randolph and State of Illinois, have invented certain new and useful Improvements in Educational Appliances; and I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enab e others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in educational appliances and consists in apparatus for indicating the relative annual and axial daily movements of the earth.

The invention comprises various details of construction, combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended claims.

I illustrate my invention in the accompanying drawings, in which:

Figure 1 is a perspective view showing a globe with an apparatus embodying the features of my invention. Fig. 2 is a side elevation of the apparatus. Fig. 3 is a sectional view on line 3-3 of Fig. 2, and Figs. 4- and 5 are detail perspective views of a part of the invention.

Reference now being had to the details of the drawings by letter, A designates a globe having :1 polar axis B and the ends of said axis are journaled in the semi-circular bars C. The free ends of said bars are. outwardly turned as at B and are adapted to be held together by means of bolts D. E designates a circular equatorial band which has holes therein to receive said bolts D, whereby the said band may be held in a fixed relation with reference to the equatorial. circumference of the globe. Said equatorial band E is divided into spaces bearing numerals indicating the hours of the day from 1 to 12 p. m. and 1 to 12 a. m. to indicate the different times at different loca tions about the earths circumference.

A. band, designated by letter F, is adapted to pass about the polar circumference of the globe and is divided into spaces indicating the various calendar months of the year and said band is provided with lugs F, shown clearly in detail View Fig. 4 of the drawings,

and in said lugs the pintles G of the screw G are mounted, the threaded portions of said screw passingthrough an aperture in the arms H of the standard H. Upon the inner circumference of said ring or band -F is an annular rib or flan e K seated in a recess 15] in the equatoria ly disposed band E, shown clearly in Figs. 3 and 4 of the drawings, and serves as means for guidin the band E as it turns with the globe. Sai

band F has a series of cog teeth F about the same and adapted to be engaged by pinion wheels, which will be presently described, and affording means whereby, as the globe is moved by the hand of the operator, it may be given two rotary movements indicating normal movements of the globe about its axis and its annual movement in the solar system.

Pivoted to one end of the polar axis is a pinion N which is adapted to mesh with said cog teeth upon the end F and at the opposite end of the polar axis is a. pinion O which is in mesh with a pinion Wheel 0' which in turn is in mesh with said ear teeth u on the band F, thereby aflording means or giving the globe a rotary movement upon its axis as the globe revolves in its diurnal movement.

In operation, the parts of the apparatus being assembled as shown, in the event of the operator pressing upon the 'lobe and cansing a partial revolution to lie imparted to the latter by the teeth of the pinion wheels engaging the teeth upon the ring or band F, a polar axial lllOYPlllQllb will be imparted to the globe, giving the correct. relative movements of the earth in its daily rotary movements and also in its annua revolution in the solar system. By this apparatus, it will be noted that, when the globe is turned to any degree to indicate local time, the time of the day will be indicated upon the graduated band or ring, as will be readily understood.

hat I claim to be new is 1. An educational appliance, comprising a globe with the polar axis, semi-circular bars in which the ends of the polar axis have bearings, a graduated band passing about the equatorial circumference of the globe and fastened to the ends of said bars, a graduated flanged band passing about the polar circumference of the globe, said equatorial ring having grooves therein which are engaged by the flanges on the band about the polar circumference of the globe, and gear Patented Aug. 31, 1909.

mechanism for causing the globe to rotate upon its axis as a partial rotary movement is imparted thereto, as set forth.

2. An educational appliance, comprising a globe with the polar axis, semi-circular bars in which the ends of the polar axis have bearings, a graduated band passing about the equatorial circumference of the globe and fastened to the ends of said bars, a graduated flanged band passing about the polar circumference of the globe, said equatorial ring having grooves therein which are engaged by the flanges on the band about the polar circumference of the globe, pinions mounted upon the ends of the polar axis, and gear teeth upon the band which passes about the polar circumference of the 'lobe ada ted to mesh with said pinion whee s, as set orth.

3. In combination with a globe, semi-circular bars in which the axis of the globe has bearin s, pinion wheels pivotally mounted upon t 1e ends of said axis, a graduated band passing about the polar circumference of the globe and having a series of cog teeth thereon, a stand having arms, screws fastened to said band at points diametrically opposite and mounted in said arms, semi-circular bars in which the ends of said axis have bearings, the ends of said bars being bent to form flanges, an equatorial graduated band passing about the globe, bolts passing through the flanged ends of said bars and equatorial band, one of said ginions meshing with the gear teeth of the and which passes about the polar circumference of the globe, an in termediate pinion meshing with the other polar pinion and also with said cog teeth, as set forth;

at. In combinatioi'i with a globe, semi-circular bars in. which the axis of the globe has bearings, pinion wheels pivotally mounted upon the ends of said axis, a. graduated band passing about the polar circumference of the globe and having a series of cog teeth thereon a stand having arms, screws fastened to said band at points diametrically opposite and mounted in said arms, semi-circular bars in which the ends of said axis have bearings,

the ends of said bars being bent to form flanges, an equatorial graduated band passing about the globe and having recesses m the edge thereof adapted to be engaged by an annular rib or flange upon the band which passes about the polar circumference of the globe, bolts passing through apertures in the flanged ends of said bars and equatorial hand, one of said pinion wheels meshing with the cog teeth upon the band passing about the polar circun'iference of the globe, an intermediate pinion meshing with the pinion at the other end of the axis and also with said cog teeth, as set forth.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses. THOMAS IOWA GALLOWVAY.

\Vitnesses I. L. BAILEY, E. A. RHnUx.