US1237598A - Power-transmission device. - Google Patents

Description

A. C. ZWA'RICH.. POWER TRANSMISSION DEVICE.. vAPPLmAnoN FILED mm1, 1911.

'1,23%598; Patentemug. '21, 1917..

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n i sr-ATES 'TENT OFFICE f ANDREW o. zwnnrcii, 0F Hoixwrns'rnnn, PENNSYLVAN. ,l

To all whom t may concern: v

Beit known thatl, ANDREW C. ZwAnIGH, a subject of the Gzarof Russia, residing at Homestead, county of Allegheny, andk State of Pennsylvania, have invented certainnewand; useful Improvements. inPower-Trans mission Devices, of which the following is a specification. ,s Y i i This Yinvention 'relates to power transmis-- sion deviceI for driving'l machines, or foil other purposes wherein found applicable, and has for its object to provide a device of suchl type, infa manner as hereinafterset l forth, with means for changingan intermittent rotary motion into a continuous one, and-'isfdesigned Vprimarily as an improve ment onpthe-construction shown inLetters Patent No.:1,179,599, granted to `me- April 18th, 1916,'and besides including the objectsv and advantages set forth.' inf saidv Letters Patent, further includes means, in a manner ashereinafter referred to,to increase the efliciencyoffthe means for changingthe intermittent rotary motion into a continuousv One,`f` j v= V`'Further-,objects of.y theinvention are to providea motor which is simple in its construction4 `and'-'arran,g,fement, strong, durable, efiicient in vits use,readily set up and` comparativelyy inexpensive to manufacture.

With `the kforegoing and other objects in view the invention consists of the novel construction-,- combination and arrangement of parts, as hereinafter more specificallyl described and illustrated in the accompanying drawing, wherein is shown anfembodiment` ofthe invention, but it is tobe understood that "changes, variations and modifications if.; canbe'resorted tol which come within the' scopeof the claims hereuntoappended. 2`In the -drawin'g's wherein like reference characters denote corresponding parts throughout the several views Figure l isa vertical lsectional view of a'` motor in 'accordance with this invention.

Fig. 2 is a vertical section on line AII--IL Fig., 1. .s

Fig. 3 is a detail illustratingon'e of the driving elements. i e

Referring to the drawings 'in detail y1' de` notes a stationary shaft provided intermediate its ends with a crank :2. The shaft l is mounted in a pair of uprights 3.

The reference character 4 denotes aclosed annular hollow casing provided with a pair y of oppositely disposed lugs 5 which are ro- Speciicaton of Letters ',Patenty., Patented Alg. t2&1, `Application led April 1.1, 1917. i. Serial No. 161,175. I j y f tatably mountediupon the shaft The l' i ing t is termeda rotor.

`The crank 2 is positioned.within the and has rotatablymounted thereon a disk' which is eccentrically disposed; with respect to the rotor, 4.

Looselyconnected at their inner ends, as

at 7, to the disk 6, as well asbeing arranged equi-distant, is a `series of. shifting elements 8, 9, 10 and l1.` yThe outer' ends of said ele-;

ments Sito l'lr-are-loos'ely connected, asy at 12, to thefinnerface of the body of therotor Ll.

Thef outer ends ofthe shiftingelements Sto l1 .are arranged equi-distant with vrespect to each .other and each of said elementsconey s1sts-y of a contractible. and eXpansible coil spring..L

.Fixed to one Side Ofth'rotorisa ratchet wheel land to the other ,sidea ratchet Wheel lt, the .latter beingy in. a lreversed -position wlth'respect tothe former. :Associated ywith the `ratchet wheels are driving elements or actuating members each'consistingof a le ver. 1 5 and a pivoted pawllG.; iThe levers 15 are connected with suitable operating devices as at 16a. Each Vratchet wheel and its actuating member. is vtermed adriving ele. ment and veach is adapted to-intermittently@v 85 the rotor. in one; direction and lthe other in 1 rotate the rotor'. i One driving element lshifts theopposite direction.

-One of the lugszi-s-provided with a pulley'or gear 17 wherebyv the rotor can be` orother device and.

coupled with a machiner operate" the same. i

-The shifting elements/8to-'11'.'are f ployed tochangeanthe :intermittent rotor drive into a continuous one, that is to say, 1`

when the rotor is intermittently operatedV by a driving element theshiftingelementswill successively expand l and.. contract `and during. 'the contracting movement thereof causefthe rotor toA revolve. i Such movement is had in view of the fact, that thedisk 6..

is eccentrically disposed with 'respect -tov` the rotor and that the innerends ofthe shiftinglelements are off-center. yWhenthe shift-'' ingelement 8 .assumes the position illus-vtrated in Fig. 1, it is completely contracted, and-asthe' rotor revolves'it is gradi volving the rotor. In view of the lforeunder such circumstancesitselicienCyfis-alsoarm 18, having its louter end provided withy a yoke v19, in whiclifis pivotally mounted' agoing arrangement as stated the intermittent impulse given the rotor by the driving' increased'. y The means just referred toconsists of a seriesof pivoted tensioning devices, one for each shifting element, and eachof" said devices consists of apivoted roller- 20, the latter being.- capable 'of bearing against the central portion off a shifting element andy bendingsaid central. portion to one side A during the operation of: the rotor,

asshown in. Fig.y l'. The arm 18 is pivotally` connected to, ay lug: 21i arranged in close proximity to the point of connection betweenthe sliiftingelementsiand the rotor. Formed integral:` with. and projecting from the arm f the sliiftiiigelement, and. which swingsthearmy 18: toward they shifting element, the:

i roller 20 engages the shifting'element and- 18 `at an angle. with lrespect thereto is a. coupling arm: 22, which is connected with the shiftingelement asfat 23, and actsas-av meansforI coupling the arm 18. with that shiftingelement with which it; isassociated;y

It will be assumed that the shifting element v8` is. in the positionl shown. in Fig; l,

as suchfelement is contracted;` the coupling arm 22,.will' move toward the outerfend. of

bendsfit at,r its center thereby increasing the tension-ofvsaidxelementa AS thero'tor. movesy around,a tensioning device will be gradually moved away from the shifting elementv until said device assumes: the position as illustrated inconnection withy the shifting ele- 'ment 10, F ig.,1. .Asthe'rotorr con-tinues to move theytension device, due to the contractingv off the; shifting. element willbe moved toward: said shifting element until,- the tensioning device 'assumes the-positionas shown inv connection with,theshifting elements 1l;

v 'l Copies Vmf, thisipatentemay, be; .obtainedv for What, I2 claimA is v:--4

l. A power transmission device comprising al crank. shaft, av diskV carriedaby the` crankl ofl said: shaft', a; rotor revolving-upon Aiger/359e `said shaft and having said cra-nk arranged therein, means for intermittently rotating said rotor, and a series of expansible and contractible milling members arranged within said' rotor and having their inner ends connected with said disk at equi-distant points and their outer ends connected `to the inner face of the rim of the rotor at equidistant points and providing means for changing the intermittent driveoi'the rotor into` a continuous one, and tensioning devicesfor said? pulling-membens.-

2. A power transmission device comprising` a crank shaft, a disk carriedby'the crank ot said shaft, a rotor revolving upon said shaft and having said cnank."arranged therein, means for intermittently rotating said. rotor, and: a series of exfpansible and contractiblepulling membeisxanrangedz within said. rotorand having their inner ends connected with said disk at equi-distantv points and vtheir outerI ends connectedI to the inner acevof' the rimi ofthe rotor. at equidistant ,pointsy and providing means for changing the intermittent drivezof. therotor into a continuousone,fandf tensioning.I devicesi for saidtpulling` members and each,` ofk said devices pivotally` connected with the 1 rim'l `of the rotor and coupled with; member. l s

3; A powertransmission device comprising a crank shaft, a disk carried' by; the crank, oi said shaltaL rotor revolving upony said shaft and having said crank arranged:

therein, means for intermittently rotating said rotor, and a series, lof eX-pansible andi contractible pulling members arranged with:-V

in said; roton and having their, innenends connected with' said disk' at, equi-distant' pointsand their louter endsconnected to `the inner face of; the rim oi"y the rotor; atl equi-v distant rpoints and providingl means for' changing the intermittent: drive-'of the rotor into a continuous one, andy tensioningfdevices for.- said pulling members,` andv eachl of saiddevices pivotally connected'with-thefrim of the rotor and coupled with' the, pulling., member, andy each of said devices ,includiI-igI a pivoted armi having a roller. capable of:

bearing; against the shifting; element; to bend it atits centen.

In testimony whereof; I: affix-,my signature in the'presencefof twol witnesses.

ANDREV- C. ZVEARIICHL Witnesses-t MAXl H. SRoLoviTz,

' Luismi-A1 H, SIMON.4

five` cents each,` by addressingthe Commissionerof` Pate-natia.,y Washington, 1').v C3.

the pullingf

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