US1465663A - Spring motor - Google Patents

Description

L. B. GRAHAM SRING MoToR Filed May 2e 1921 Patented Aug. V2 1, 1923.

. @Unirses'rArss insta Textarea LESLIE* VBf Gannett/r; or' EAST CHICAGO, VINQIANA, Assrs'non 'ro GRAHAM* WITTENBORN ooaronnl'rron, er CHICAGO, rLLrNors Immers.

i f SPRING IfIOTOR.-

T al? yurhmn t may concern; c' Y citizen of the United States of America, ref

- specification.

siding at East Chicago, ,in the county of Lake and State oflncliaiia, rhave invented certain new and useful improvements in Spring Hoteis of which the following-1s aspring` motors, and the principall objects of my improvements are: I A. y .Y First: yTo fpr vide aspring motorof lowcost in manufacture consistingvof few' gears,

whereby all partsmay be made by what is lniown as sheetrmetal stamping orscreW mafv chine Work; Y

Seco-nd: To provide af y'spring VVmotor g `whereby a partial rewinding of the spring may be. accomplished by its own power whileit is operating. Y

My invention relates toiimprovementsY in spring motors, particularly vt0 improvements in connection with the construction disclosed in my pending application, Serial .$469,664 tiled May 14, 1921.

:M practical embodiment of the invention isillustrated in the accompanying drawings 1 which are a. part hereof and in which lsimilar characters of reference indicate corresponding -parts in'all ofthe views.

The invention consists 'n ,.the'v novel features and parts and in the novel combination and varrangement of the same, which will ybe more fully described hereinafter' and thus pointed outin the claims hereuntoappended, f

In lthe drawings:

Figure 1 is a sectional view of the entire motor.

Figure 2 is a plan view of the governor with the upper plates partly broken away to show its construction,

Figure 3 is a partial section of the governor.

Figure 4 is a sect-ion throughout. the Winding device, showing the release spring.

In Figure 1 the usual turntable is shown as at 5, mounted upon the shaft 6, Which is supported in the frame 7, this frame being in turn supported by the usual shelf 8. At 9 is shown a. stud securedin the frame7, as at 10, provided for the purpose of supporting the spring barrel 11, together With its is in action'. 1

192i, semaine. 472,73@V

driving gears 12 and lL13.' lfliese'rgears 12 and 13,'are shown 1n mesh with p1nions14 A f loonronn'rron;"

andl, which are mountednpon tlieshaft 6. The pinions 14 Vand 15 arefloosely mounted upon shaft@ and driven the teethl rand pa- Wis 16a secured to pinion 14 which is also mounted' loosely. upony shaft 6, for the puropposite Adirections during reivinding of Y spring 117@ crank, not shown, which,maybe-attached to For rewinding inalreuserof the iislf i Y y pose of allowingv'thesefpinionshto. rotatein My invention relates to improvements in' sections are held apart by thes'pring 20, preventing turning ofthecranlr While the motor ReWindingLis accomplished pressing the crank inward until the'.clutch 19 isen- I l gaged, then hyfrolt-ation of thefcranhthe rewinding pinion, as shown at 21',and which" meshes in a seriesof holes o f both gearsgvill.

cause the lgears 12and-13 to rotate in opposite vdirect-ions and charge', spring 1 7, one end of which is attached to the b'arrelfll, and theother e'ndto the sleeve22. Rotation ofthe gears 12-and 13 in opposite directions Will also'cause pinions14 and 1 5 to rotatein reverse tjoeac-h other.

Forming a part of 'the pinion 14, are'` the ratchet teeth` 23, theseteeth engaging Vthe paWls 24, provide a means forretaining the charge of;` spring 17.A And as the Pinion 14 rotates clockwise dueto receiving motion from the outer end of the spring 17 through the barrelll, and gear 12, a Clockwise direction of rotation will be imparted 'tothe patvls 24, by the ratchet teeth 23 of pinion 14. These pawls will in turn impart a clockwise direction of rotation to the shaft 6 through the disk 25 and key 26. To the pinion 14 the paWls 16a are attached, which in turn rotate the pinion 15 through the ratchet teeth 16, that are formed integral With pinion 15. The pinion 15 being rotated clockwise will also rotate the gear 13 counter-clockwiseand accomplish a partial reWinding of the spring 17, at its inner end through the sleeve 22, to which the springs inner end is attached. Y

To attain a Yhigh ratio in revolutions of the shaft 6, t0 each turn 0f the springs un- Winding, I make use of a difference of pitch diameters between the gears 12 and 13, and between the pinions 14 and15 as'follows: Assume all of the gears to be of number 32 pitch, and that the gear 12 to have 170 teeth,

' gear- 13 to have 173A teeth, pinion 14 to have 23 teeth, and pinion 15 to have 20 teeth.v Then aS the gear 12 makes one revolutionV counter-clockwise it will cause the pinion 14 to rotate seven and four-tenths turns in a clockwise direction; and pinion 15 will also make seven and four-tenths turns clockwise which will in turn rotate the gear 13 counter-clockwise through a distance of seven and four-tenths times twenty, which would equal 148 teeth. Now as the gear 13has 173 teeth, it'will fall short of making one complete turn, by the distance of 25 teeth. Therefore, if we divide'173 by 25, we get the result of six and-nine-tenths. Then, to get the totalY number of rotations of the shaft 6, to one turn of the springs unwinding, we multiply seven and four-tenths by six and nine-tenths, and get the result `of fifty-one', which would equal the number of revolutions of shaft 6 to each turn of the springs unwinding.`

If'desirech the governor shown'may be omitted and Athe usual fly ball and spring type may be embodied I do not limit myself to the construction shown, but may embody two or more "springs together `with a re-arrangement of the gearing to get the same 'results without departing 'from my invention. -Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. yIn a Spring motor, two gears of a dif- `ferentV pitch diameter, two pinions of a different pitch diameter meshing withthe two gears of different pitch diameters, and a spring yhaving one of its ends attached to drive one of the gears of different pitch diameter, and its other end attached to the other` gear of different pitch diameter, means for partially rewinding the power spring by its own power.n v

2. In a spring motor, two gears of different pitch diameters, and two pinions of different pitch diameters, both pinions mountupon another shaft, means for driving one of the gears by one end of the power spring,

and means for driving one end of the power spring by the other gear and through the pinions of'ditlerent pitch diameters.

3. In a spring motor, two gears of different pitch diameters, andrtwo' pinions of different pitch diameters, one of said gears being connected to one endof aspring, and the other of SaidV gears being connected to the otherend of said spring.

4. A spring motor driving a' power YreceivingY shaft through a pair of gears, and 'a pair of gears receiving power from', the

powerreceivin'g shaft t0 partially rewind ed uponone shaft, and "both gears mountedl the power spring, and a means for manually rewinding the power spring; k

5. In a spring motor, va power source for Y driving a power receiving' shaft through a pair Yof gears, alpai-r of gears receiving' power 'from'the power receiving shaft for partially rewinding the power source, and 3 a means lfor controlling the speed of the power receiving shaft.

'6. In a spring motor-',twogears mounted upon a spring axis and two other `gearsy mounted upon driven shaft, means for allowing the gears to rotate in-theisame direcition, and means for allowing the gears to rotate in opposite directions.

7. In a springV motor, Va spring havingboth of its ends `rotating'about its axis in the same direction during release of its power, a'shaft receiving motion from oneV end ofthe spring, gearing for operating the shaft, and gearing for rotating the other end of the spring In testimony whereof I ailix mv signature.

.LESLIE B. GrRAI-IAIVI.A

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