US1099014A - Tellurian. - Google Patents

Description

H. L. BRETSGH.

TELLURIAN.

APPLICATION 2111311111011, 1912.

1,099,01 4, Patented June 2, 1914.

2 SHEETS-SHEET 1,

H. L. BRETSOH.

TELLURIAN.

APPLIOATION FILED 10110.11, 1912.

Patented June 2, 1914 2 SHEETS-SHEET 2.

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COLUMBIA PLANOnAPH C0..WASH|NCITON, D. c.

HOMER L. BRETSCH, OF HASTINGS-UPON-H'UDSON, NEWT YORK.

TELLURIAN.

tenacia.

Specification of Letters Patent.

Patented J une 2, 1914.

Application filed December 11, 1912. Serial No. 736,183.

Tt all 'whom it may concern Be it lrnown that 1, Hoeren L. Brunson, a citizen of the United States, residing at llastings-upon-Hudson, in the county of Westchester and State of New York, have invented new and useful lmprovements in rllellurians, of which the fication.

rlhis invention relates to tellurians of the type disclosed in my prior Patent #1010226, dated November 28, 1911, and the object of the present invention is to provide certain improvements upon the device covered thereby, as hereinafter fully described and claimed.

ln the accompanying drawings,-Figu re 1 is a side elevation. Fig. 2 is a top plan view. Fig. 3 is a vertical longitudinal section. Fig. 4 is a horizontal section on the line 4-4 of Fig. 3. Figx is a detail vertical sectional view on the line 5-5 of Fig. Fig. 6 is a bot-tom plan view of the axis quadrant. Fig. 7 is a detail section on line 7-7 of Fig. 3.

Referring more particularly to the drawings, 1 represents a base having any suitable outlines, but preferably circular in form. 0n the upper surface of the base, adjacent the periphery thereof, is spaced suitable indicia 3 and 4 indicating the months of the year and the signs of the Zodiac, and also lines 5 and 6 indicating the time in which the earth passes through the solstices and equinoxes, the months of the year being arranged anticlockwise. The center of the base is provided with the frustum of a cone 7 through which and through the base extends a shaft 8 upon which is journaled a globe supporting arm 9, the same being held down upon the cone by a conical washer 1() secured to the shaft. Said globe supporting arm is provided with a pointer 11 adapted to operate over the face of the base. The free end of the arm 9 is supported by means of a roller 12 operating over the base and carried by a bracket 13 secured to the under side of the arm. rl`he arm 9 is preferably hollow and has inclosed therein bearing members 14, 15 and 16 in which is journaled a transmission shaft 17 having pinions 18 and 19 secured upon opposite ends thereof. The pinion 18 is in mesh with a beveled gear 20 secured to the top of the cone, and the pinion 19 is in mesh with a similar beveled gear 21 mounted upon the shaft 22 extending vertically from the arm and carfollowing is a specirying upon its upper end an axis quadrant 23. rlhe bearing 14 is in the form of a yoke bracket carried by an adjusting wing screw 14L swiveled thereto and working in a threaded opening in the arm 9, said bracket being movable upwardly into a recess 14b 1n the under side of the arm, whereby the gear 18 may be adjusted into and out of engagement with the gear 20. By this means the arm 9 may be revolved upon theshaft 8 with or without operating the shaft 17 and transmitting motion to the quadrant arm and globe, as hereinafter described.

The quadrant 23 is provided with a longitudinal series of threaded openings 24 to adjustably receive the lower end of the axle 25, said axle having a collar 26 which seats -upon the top of the quadrant and a nut 27 codperating with the washer to clamp it in adjusted position on the quadrant. By this construction the axle 25 may be meunted at different angles upon the quadrant, which latter is graduated as shown at 28, to determine the angle of the axle. Supported by the axle is an ordinary globe 29 representing the earth and having the different zones marked thereon.

Surrounding the axle 25 and secured to the under side of the globe is a gear 30 which 1s 1n mesh with a gear 31 carried upon a transmission shaft 32 journaled and pivotally mounted in a bearing opening 33 in the quadrant. The lower end of the shaft is provided with a beveled gear 34 which is in mesh with a similar but larger gear 35 held stationary upon the arm 9 and surrounding the shaft 22. Ilfhus it will be noticed that as the arm 9 is rotated upon the shaft S, when the pinion 18 is in engagement with the gear 20, said pinion 18 will be rotated by engagement with said gear 2O and thus, through the shaft 17 pinion 19 and gear 21 the shaft 22 will be rotated. Thusas the arm is rotated the earth will be revolved with the quadrant, and the gear 34 being in mesh with the gear 35 which is stationary upon the arm, the earth will be rotated upon its axis. lt will, however, be apparent that by adjusting the screw 14a to throw the gear 18 out of mesh with the pinion 20, the arm 9 may be revolved upon its axis without transmitting motion to the shaft 17, and therefore without rotating the shaft 22 and quadrant 23. The shaft 22 carries an arm 22L having its free end arranged at an angle thereto and provided with a longitudiperihelion and aphelion, in the months or nal slot 22h. Slidablv engaging said arm 22a 1s a sleeve 32a having openings in lts top and bottom for the passage of the shaft 32, which also extends through the slot 22h. The inner end of the sleeve is provided with a longitudinally slotted extension 321 adjustably secured to the arm 22a by a set screw 32C. By this construction the sleeve may be adjusted on the arm 22a to shift the shaft 32 so as to throw the gear Set into and out of mesh with the gear 35, wiereby the arm 9 may also be revolved with or without turning the shaft 32 and rotating the globe upon its aXis 25.

ln order that the circle of illumination and the twilight belt may be clearly shown upon the globe during all periods and at all places, there is secured to the arm 9 a standard 86 from which projects a horizontal yoke member 37 surrounding one-half of the globe and having secured to its outer ends a substantially semi-circular bar 3S which is of sufficient size to permit the passage of the globe in all of its positions. Spaced from the bar 38 is a similar bar 39 which has its ends stepped in the supportingmember 37 and is connected to the bar 3S by a bridge piece 1l() which has its outer end threaded and passed through the member 38 and provided with a thumb nut all, so that the member 39 is spaced away from the member 8S a distance corresponding to 18o upon the globe, which is the width of the twilight belt.

Mounted upon the end of the shaft 8, which is hollow, is an electric globe lf2 having a connection with a source of current supply by wires t3 which extend through the shaft, and a pipe lll is also connected to the shaft so that the sun may be represented by a gas globe instead of an electric incandescent light. r)She hollow shaft 8 is provided with an offset portion 8a, arranged to change the position of the light with respect to the globe 29 at different positions in the movements of the arm 9 to illustrate the December and June, respectively, or that the earth is nearer the sun in winter than in summer. lin order that the position of the vertical rays may be indicated upon the globe, a standard 4:5 is secured to the arm intermediate its length and mounted upon the upper end of the standard is a thin arm or pointer 46 which is in line with the sun and the 90o mark on the quadrant or with the intermediate point between the poles. By rotating the arm anti-clockwise over the base the before mentioned results may be readily7 determined.

I claim l. In a device of the class described, the combination. with a base, of an arm rotatably mounted thereon, a quadrant, means actuated in the rotation of the arm for rotating the quadrant, means for throwing the first named means into or out of action, a shaft mounted upon the quadrant, and a globe rotatably mounted upon the shaft.

2. .ln a device of the class described, a base, an arm rotatably mounted thereon, a quadrant, a shaft carried thereby, a globe rotatably mounted upon the shaft, gearing actuated by the rotation of the arm for rotating the quadrant, means for throwing said gearing into and out 0f operation, gearing actuated by the first named gearing in the rotation of the arm for rotating the globe upon its shaft, and means for throwing the latter named gearing into and out of action.

In a device of the class described, a base, an arm rotatably mounted thereon, a shaft carried by the arm and liournaled in the base, a gear surrounding said shaft and fixed to the base, a gear rotatably mounted in he arm, an operating connection between the gear on the base and the last named gear, means for throwing said connection into and out of operation, a quadrant secured to the gear rotatably mounted in the arm, a shaft carried by said quadrant, a globe mounted upon the shaft, a gear secured to the arm, a gear secured to the globe, a shaft rotatably and pivotally mounted on the quadrant and provided with gears meshing with said gears on the globe and arm, and adjusting means coupled Vto said shaft for pivotally moving the same to throw the last named gears into or out of action.

In testimony whereof I aiiiX my signature in presence of two witnesses.

HOMER L. BRETSCH.

TWitnesses CLARENCE D. HaNroRD, EDWIN F. BALDWIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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