US1413982A - Mechanical movement - Google Patents

Description

c. H. GILL.

MECHANICAL MOVEMENT.

APPLICATION FILED DEC-29, 192G. I 1,413,982, Patented Apr. 25, 1922.

gag-ed with the i said element, and without 40 one of the said elements at the same rota- 1,41e,9s2. I

c AnLEs H. GILL, OF oHIcAeo, I IJNoIs.

,MECHANZCOAL MOVEMENT.

; T aZZ whom timag] concern.

. Mechani either been unprovided for Be it known that I, CHARLns H.

citizen-of the United States,residing at Chicage, in the county of Cook and State of have inventeda new and useful the follow- Illinois,

cal Movement, of which in is a. specification. I a

ll/Iy invention relates to a novelassociationof parts adapted to perform various mechanical functions that have heretofore or have been .performed by less effective or more complicated aggregations of parts.

My invention has for its objects,- first, the I provision of means for detecting variations, 1

. in the rotational speeds with respect to each v faster and other of two independently rotating elementsg. second, the provision; of means. whereby indication will be given as to which of the two .rotating eleme'nts 'is rotating which slower than the other; third, the provision of .means' extent and duration ojrfjthe variation .of rotational speed's of, the two, elements with respectato each} other may ,be indicated; fourth, the provision of means whereby an element may be moved longitudinally upon ashaft in either direction by the movements of either of' .tw.o independently movable p arts,.both of which are continuously enthe movement ofeither of said. independ I ently movable parts-effecting-any movement of-the other of said independently movable parts; fifth, the provisionof means whereby two-elements rotating in opposite directions and maintained. in fixed spaced relationto eachother may be either moved longitudinallyofa shaft a' distance twice as great as they-would be moved by the rotatlon'of only tional speed or the shaft may be moved a like-distance while the-said elements are a restrained from longitudinal movement on said shaft; sixth,'ithe provision of means whereby two indep'endentlyrotated, ele- 'ments upon the same shaft maybe caused tovapproach each other or recede from each other as their speeds of rotation vary from each other; and, seventh, to provide means whereby two elements upon the same shaft,

when rotated in opposite directions, will either approach ea'chother or'recede from each other at speeds proportional .to and with power proportional to the sums of the speeds and-power of the -.-resp.ectiv.e rotafipecification of Letters Patent Application fileclilecemher 29, 1920. Serial'No. 433,931.

' ing description whereby the the Patented tional movements Tof the two elementsd appear" from the follow- Other objects will and claims.

I attainj these objects :by the mechanism illustrated the accompanying drawings, A

in which Figure 1 is side elevation of the prefer red form of construction embodying the principles of my device; F igure 2 is a cross sectional view of Flgure 1'; and Figure 3 is a plan section of a part ofjmy 'device,"taken at the polnt lndlcated by 3-3 in Figure2 and looking in the, direction indicated by it the arrows at 3-3.

Similar numerals refer to similar parts throughout the In my several views. v preferred construction, ajshaft 11 (shown broken away .in the drawings)- is journaled in suitableybearings so that the. Y freely rotatable. A wide. "P1111011 12 isprovided withinterna'l 13 for a short distance fromitsupper end" and these internal threadsglB engage I and coact withexternal threads 'ltjwith which .theshaft 11 is provided for a portionof said shaft 11 is its length.

The shaft 'llis further provided with a keyway 15 of suflicient dep'thto extendto- 1 7 than grooves betweenthe threads 14:. do.- This.

ward the center of that shaft further keyway 15 extends along the'shaft 11,- ion gitudinally thereof, beingfcut through the' screw threads 14 fora portion of its length. i A wide pinion 16. is ,providedwi th' an internally extending key ,or'feathe r 17which engages the ke'yway 15 and compels the shaft 11 to rotate'with theppinion .16" while not interfering with freelong-itudinal move"- 'ment of'the pinion 16 upon'the'shaft fl.

AwasherlS up n the 'shaft ll separates the pinions12 and 16. a Y I A .frame 19 has arms 20 provided with circular apertures 21 through which: the shaft 11 passes and this frame 19 servesto maintain the pinions 12 and 16in spaced relation .to each other. NVashers 22upon the shaft 11 are interposed between the .pin

ions 12 andl6 respectively and, the frame 105 g arms f 20... A stationary rod 2? passes through cireular apertures' 2i :at each end and preventsrotation of the I .frame 19 with the shaft 11, the .frame 19 free longitudinal sliding moveof the frame 19 while permitting ment thereon. The rod fixed to any? convenient portion of the frame ofthe machine in which thisdevice maybe used;

threads g Y I 1,413,982

Gear wheels and 26 engage the pinio'ns .mission mechanism, subject of my applica- 12 and 16 respectively and may be either tion forLettersPatent, filed December 29th, fixed upon or rotatably mounted upon a Serial No. 433,930, and also, in modified single shaft or upon separate shafts 27 and form, in my invention of friction transmis- 5 28, as diagrammatically shown. The. gear sion mechanism, forming the subject of my wheels 25 and. 26 may be driven by separate application, for Letters Patent Serial No. motors or by separate portions of a single 374,683, filed April17th,192().

' machine, When the gear wheel 25 s actuated by the Wh le the separate motors or machine vibrating or reciprocating movement of a 1 parts that drive the gear wheels 25 and 26 member in one direction only and the gear respectively are operating at exactly the wheel 26 is actuated by the reverse movesame s eed and in the same direction it ment of the same vibratin or reci rocatln at; 7 7 V b will be evident that there Will be no longlmember. the actuation of both the gear 1 Va" .tudinal movement or the frame 19 upon wheels 25 and 26 being in the same direction,

15 the shaft 11, because both the'externally differences in the forward and backward threaded shaft 11 and the internally threadmovements of the vibrating or reciprocated pinion 12 are rotating in unison. Should 7 ing member will be indicated by movements the motor or machine part driving the gear of the frame 19. When the gear wheel 25 wheel 25 be slowed down, however, without is actuated in one direction by the move- 29 proportionate slowing of the motor ormament in one direction of a movable member chine'part driving the gear wheel 26, the and not actuated by the return movement shaft 11 will be rotated faster than the of that movable member and when the gear pinion 12 and will, assuming a left to right wheel 26 is similarly actuated by the moverotation "of the shaft 11', force the frame ment of a separate movable member, the

25 19. and its embraced pinions 12 and 16 in difi'erence between the total movements in a downward direction upon the shaft 11. the operative direction of the two movable Should the speed of the gear wheel '25 members will be indicated by the movement be increased, instead of diminished, the of the frame 19. I employ this latter method movement of the frame 19 will be in the of using this mechanical movemenin my upward direction, because the internally invention of indicating mechanism, forming threadedpinion 12 will then be in excess the subject of my application 1'01 Let ers of the rotational'speed of the shaft 11 and Patent, Serial No. 294,947 filed May 5th, will screw upward uponthat shaft. 1919, and inemy invention of improved in- 7 Should the gear wheel 26 be driven at an dicating mechanism, forming the subject of 35 increased rate-over the rotational speed of my application for Letters Patent, Serial.

the gear wheel 25, the result would be the No. 433,928, filed December 29th, 1920. same as described in the case of the geat- When the gear wheels 25 and 26 are driven wheel 25 having its speed diminished, and V at equal speeds and in opposite. directions,

a diminishment in the speed of the gear the frame 19 will be moved in one or the 40 wheel 26 would be exactly'the same as an other direction, according to whether the increase inthe speed of the gear wheel '25. gear 25 or the gear 26 is driven in clock- /Vhenever the gear wheels 25 and 26 rotate wise direction, at double the speed its movein unison, the frame 19 will remain stationment. would be if only one'of the said'gear ar whenever the gear wheel 25 rotates the wheels was being driven. fastest of the two, there will be an upward The pinions 12 and 16 may be independmovement of the frame 19; and whenever ently placed upon the shaft 11, without the the gear wheel26 rotates the fastest of the frame 19, and spaced apart from each other. two, there will'be' a downward movement of In that case,'when boththe pinions 12 and the frame 19. These movements of the 16 are driven in the same direction and at 50 frame. 19 will be proportional in speed to the same speed they will maintain their re- 11! the differences in the rates of rotation of spective positions on the shaft 11. Differthe gear wheels 25 and 26. ences in their respective speeds will cause t will be evident that an indicating dial them to approach or recedefrom each other. or hand can readily be operated by the up- When driven in opposite directions, they 55 wardand downward movements of the will approach orrecede from each other at 12 frame 19 to indicate when there is variation a rate equal to the sum of their rotational of speed between thegear wheels 25 and 26, speeds, proportional to the pitch of the screw and also that this same movement of the threads 14. When thus made to approach frame 19 might be used to operate throttle each other, they will exert pressure upon 60 valves or rheostats to control the speeds of any object between them equal to, the sum of 12 the gear wheels 25 and 26 and maintain. the power transmitted to each. Therefore, them at equality, or that this movement of this movement is adaptable for die pressing the frame 19 might be utilized to control and similar purposes. 7 speed. changing mechanism. I employ it for In this preferred embodiment of my inthis latter purpose in my invention of transvention I have shown the internally thread- 13 ed element and the key or feather carrying element as wide faced pinions adapted to remain in'mesh with the 26 respectively throughout a considerable range of movement longitudinally of the shaft 11, and I have shown the threads upon the shaft 11 terminating at such points as would cause the internal threads of the pinion 12 to be out of engagement therewith when the limit of longitudinal movement with continued mesh with 'thegears 25 and 26 respectively was reached. It is, of course, evident that wide faced gears 25 and 26 might be used instead, with thin gears or pinions in place of the pinions 12 and 16, and that numerous other variations of con-. struction might be employed without departing from the scope and spirit of my invention. I, therefore, 'do' not wish to be limited to the construction shown and described.

I claim: 7

1. .In a mechanical movement, the combination of a rotatable internally threaded element, a rotatable member provided with a.

feather, a shaft passing through openings in the said element and the said member,

gear wheels 25 and sald internal threads of said element, a keyway in said shaft engaged by the said-feather threads upon. said shaft engaging with the I Q of the said member, means for retaining the 7' said element and the said member in fixed position with relation to each other, means for preventing longitudinal movement of the said element and the'said member upon the said member, and

pinion in screw engagement with said shaft, i

a second pinion mounted upon said shaft slidably and provided with a feather engaging the said keyway in said shaft, a member slidably mounted upon said shaft and provided with arms embracing both the pinions in'such manner as to maintain said pinions in spaced relationship't'o each other, means adapted to prevent rotationof the said slidably mounted member,

and independent means for rotating each of the said pinions. I

g v CHARLESH. GILL,

35 said shaft, independentmeans for.rotating"- independent means for rotatingthe said element. 2 v

' 2. In a'mechanical movement, the combi-

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