US1323851A - Mechanical movement - Google Patents

Description

W. H.FOLSONI.

MECHANICAL MOVEMENT.

APPLICATION man mm1. |911.

Patented Dec.v 2, 1919.

W. H. FOLSOM.

MECHANICAL MOVEMENT.

APPLICATION FILED APR. 1|. 1917.

1,323,851. Patented Da. 2,1919.

2 SHEETS-SHEET 2.

my@ zwaai,

, 'rn STATES PATENT OFFICE.

WILLIAM H. FoLsoM, oF MINNEAPoLIs, MINNESOTA.

MECHANICAL MOVEMENT.

To all whom z5 may concern:

Be it known thatI, WILLIAM H. FoLsoM,

a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a specification.

My invention has for its object to provide a simple and eficient mechanism for converting and transmitting power. It

While, as above indicated, the device isy capable of use to do any and all kinds of work, it is illustrated in the drawings as used to drive reciprocating pumps, and as hereinafter described, it will be referred to as performing that function, but, of course,

the invention'is not at all limited to that particular purpose.

The device or machine is adapted to be made up of any desired number of units, and in the drawings, only one of these units is illustrated.

In the accompanying drawings which illustrate the invention, like characters indi-I cate like parts throughout the several views.

Referring to the drawings,

Figure 1 is a side elevation illustrating the invention; and

Fig. 2 is a plan view of the parts shown in Fig. 1.

The framework of the machinel may be of any suitable construction, but as shown in Fig. 1, it comprises a horizontally disposed frame bar 3 having supporting legs 4 and certain other parts hereinafter to be noted. The Hoor structure is indicated by the numeral 5. The numeral 6 indicates the cylinders of a pair of pumps, which cylinders, as

shown, are pivoted to brackets 7 rigidly secured on the floor structure 5. Working within the cylinders 6 are pistons having long upwardly `projecting rods 8. The up'- per ends of the piston rods 8 are pivotally connected to the opposite ends of a walking beam 9' that is intermediately pivoted by a shaft 10 to abracket 11 that is rigid on the frame bar 3. a

Y Specification of Letters Patent. Application led April 11, 1917. Serial No. 161,209.

Patented Dee. 2; 19919.

The numeral 12 indicates a rocker shown as of skeleton form, beingin fact, a representation ofany segment of and up to a com'` pletewheel having its axis at 13. vThe pe-v riphery 14 of this rocker segment 12 eng'ages upon the upper surface of the walking'beam 9. As shown, the engaging surface of the walking beam 9 and `segmental vsurface14 are smooth, but when desired, may have any' usual anti-slippingconnection as toothed engagement. When ymade smooth, as shown, there is a lpossibility' of slippage, and to prevent this, spring-pressed centering rods' 15 are pivotally connected to the lower por! tion of said rocker '12 and to the opposite end portions of the walking beam 9, and moreover, the said rocker is preferably provided with a depending centrally located fork 16 that loosely embraces the pivot shaft 10 of the said walking beam. Atits upper end, and on its opposite'sides,the' rocker 12 is; providedA with laterally spaced pairs vof arms 17 through which work the upperend of tension rods 18as shown, four in number. Immediately above the arms 17, the rods l18l are" providedfwith shoulders or stop collars `19. At theirlower ends the rods 18 are con-- nected in pairs by short rods 20, and these rods are connected to the opposite ends of a tension yoke 21, which, at its intermediate portion, has a pin 22 mounted for vertical sliding movements in a bracket 23 rigidly secured to the ioor or underframeA structure 5.v The numeral l24 indicates a toggle, thel lower arm of which is pivoted on the pin 22 and the upper arm of which is pivoted at 25 to a bracket 26 fixed to the frame 3. The upper link of the toggle 24 has a projecting arm 27 that is pivotally connected to one end of a lever 28, which latter is intermediately pivoted to a bearing 29 rigid on the floor orf underframe structure 5. The outer end of' thisulever 28 is connected by a link 30 to one end of a lever 31 that is intermediately piv" oted to the frame 3. The outer end of the lever 31 is connected by ashort link 32 to, the crank 33 of? a driving shaft '34 tha'tfi'sfV journaled in suitable bearings on the frame 3. ',Ihis lshaft 33 lmay be either directly or indirectly connected to a prime mover; Any one of the `several shafts of the machine may,

in fact, be used as a driving shaft, but for the purpose of thepresent'description, the

said shaft 34 will be treatedV as the driving 110 shaft. As shown, it is provided with apulley 35 over which a 'power-'driven belt 36 is' ently appear.

arrangedl tol run. l yThe shaft A34 carries a. drive wheel shown in the form of a sprocket 37. At the oppositeend of the frame'3l located parallel to the shaft 34 isa similar shaft 38 also journaled in suitable bearings on-the frame 3, or elsewhere. This shaft .38 is proVid'edvvi-th a Sprocket 391 that is twice the diameter of the sprocket37.- -A long sprocket chain 4'0 runs over the alined sprockets 37 and 39, soV that the said shaft 38 Vwill be driven at one-half the speed of the which, as shown, is journaled in suitable bearings 46 on'the fioor'or underframe structure 5. The shafts 38 and 45 are driven at the same-speed,1to wit, at one-half the speed of theshaft 34. 1 `The shaft 3,8 isl provided with acrank 47 andshaft 45 is provided with acrank 48.- The crank 48 is set ninety degrees aheadV of crank 47 in the clockwise direction of their respective rotations.

Crank 47 is connected by 'a link 49 to a 1 lever 50 kthat is intermediately pivoted at 51 to a bracket 52 on the frame 3. The long upper end 'of thislever 50 is connected by alink L53 to the upper end of the rocker 12. The crank 48 isv connected'y by 'a link 54,

to the outer` endof a lever 55 that is inter- "I vmediately pivotedto a depending 'bracket Y 56 ofthe frame 3. The inner end of the lever 55 is connected by a linkv 57 lto vone end. ofthe walking'beam 9.: Y

Journaled yin 4any convenient point Nupon i. the 'construction is a shaft 58 carrying thereon a sprocket wheel 59 and aV clutch wheel 60.-v Over the sprocket 59 extends the sprocket chain 61, which also passes over v:the sprocket 41 from which vpower may be taken as described in. relation to said sprocket. n 5 n Y v,Ilulcrumed also upon `the sha-ft 5.8 fare arms- 62 and 62', carrying pivoted thereon Y detents 63 Vand 63, respectively. The detents 63'and 63 are heldfto'work upon the, clutch disk by fmeans. of springs 64 connectedtherewith atrone of their ends and at theiropposite ends to any `'convenient Pivoted also to the'arms 62 and 62 are VVlinks 6 5'which in turn are pivoted to the 1ever '66,-'pivoted to 'any rigid abutment. The leverl 66 is in turn' connected by link 67 to thewalking. beam ,9, so Vthat 'as [the walk'ing-beam9' oscillates upon its pivot" l0 las hereinbefore described, the lever 66- isjoscillatedfupon its pivotto the dotted' line position shown in Fig. Land-to a posi'- y tion upon theopposite side 'of the full line Y Y Y position'corlspbnding to such Vdotted -line position. L The .oscillation :Qfffthis lever 66;

Y shaft 58.

upon its pivot through the medium of the links 65 also oscillates the arms 62 and62 with oppositely rotative movement about the As the arms 62 and 62 move upwardly ythe detent 63 engages the cam disk 60 and rotates it in the direction forY rotation ofall of the parts, whereas when the arms 62and 62 move downwardly Yin l their rotative movement the detent 63 engages such cam :disk 60 andV continues the Vrotative movement initiated by the detent the rotative movement of the disk, and such rotative movement of the sprocket 59 is imparted to the sprocket 41 through the medium of the'chain 6l.

In the machine as designedu'it maybe asp sumed that all movements of the rotary parts are clockwise, in respect to Fig. 1. Anyone of the three shafts 34, 38 or 45 may be used as the driving member, but, as valready stated, I assume that the power is practically delivered to. the so-called driving shaft 34. In Fig. 1,.the full lines yindicate what may be called the dead center or neutral position ofthe rocker y12 and Aof thel walking beam 9. Under rotation of the driving shaft 34 in' aclockwise direction through; one-half rotation, they shafts 38 and 45 willbe driven in the same direction but at half the speed thereof, and under such movement, the walking beam, by movement of the lever 55, and the rocker, by movement of the lever 50, will berocked into an oblique positionat the right just reverse from that shown by. dotted lines in Fig. 1. In fact,V the dotted lines, Fig. l-,indicatethe position of the parts after the shaft. Y34 has made one and one-half rotationYrand the crank shafts 38 and 45 have 'been given three-fourths of a rotation. VYWhen the driv? ing crank shaft 34 has been given vone com-- piete rotation and the crank shafts 38 Yand i 45 have been giveny one-half rotation, the rocker will be again back to the position in! dicated by fulllines in Fig. 1.

The lever connections 28, 30 and are, Y i

by the crank 32, so timed andoperated that the members of toggle24 will approachV alinement, as indicated bydot'ted lines fin Fig. l, as the rocker approachesthe limit of itsv oscillatory movement in ber dip, rection. VThls obviously, is Vbecause the saidi4 i toggle isgiven two straightening operations for each complete .rotation of the cranks y47 and 48. As the toggle24 isstraightened, it`Y Y pulls-the yoke 21 down-and presses 'the collars or shoulders 19 of the tensionrods 18 against the arms 17 of the rocker l2, and,f

walking beam is oscillating inthe one direc'-V Y f tion or :the other from its horizontaler in- .125 ofcourse, it .doesthis ata time whenV theVV ward force on the downwardly moving side of the walking beam. When the walking beam reaches the limit of' its oscillatory movement in either direction,the toggle will be completely extended, but by means ofthe rotation of the shaft 34 the toggle will at once relieve the walking beam from this downward epressure, thereby permitting the walking beam to be' freely returned to its horizontal normal position under the action of the crank 48, lever 55 and link connections, and at the same time, vpermits theV rocker 12 to be freely restored to its vertical neutral position by the crank 47 through the lever 50 and link connections.

Movements of the walking beam 9, as already indicated, will be utilized to produce various different kinds of work, but in the drawings, its oscillatory movement, as above described, of course reciprocates the pump pistons and operates the pumps. Of course, the two shafts 38 and 45 will be continuously driven at one-half the speed of `the driving shaft 34, and the shaft 58 is further driven from the walking beam 9' through the link 67, lever 66 and connections to the dogequi-pped arms 62 and 62. More specifically stated, under upward movements of the links 65 and arms 62', operating on the clutch wheel 60, will rotate the shaft 58 in a clockwise direction and under downward movement of the said link 65 thedog of the arm 62 operating on the clutch wheel 60 will drive the said shaft in a clockwise direction.

All of the parts of the machine are driven in proper synchronism, and the toggle-actuating connections are timed in respect to the walking-bearn-actuating connections and the rocker-actuated connections in the relation of two to one.

Any desired number of units, such as described, may-be employed and coupled up, side by side, or otherwise, in a common machine. When thus-used, the corresponding cranks of the several units would preferably be partly set, one ahead of the other, so as to give a uniform application of power.v

What I claim is 1. A mechanism of the -kind described comprising a walking beam, a rocker having traveling engagement with said walking beam, from one side to the other of the pivot thereof, and means timedV iii synchronism with the oscillation of said walking beam for rocking said rocker and for augmenting the weight of said rocker alternately upon the downwardly moving sides of said walking beam. p

2. A mechanism of the kind described comprising a walking beam, a rocker having traveling engagement with said walking beam from one side to the other of the pivot thereof; two cranks driven at the same speed and a third crank driven at twice the speed of the other two; connections from one of ythe combination 4with a walking beam having connections for v,the delivery of power therefrom; of a rocker having traveling engagement with said walking beam from one side to the other of the pivot. thereof;

toggle with connections to said rocker for augmenting the weight of the same upon thedownwardly moving sides of said walking beam; two cranks driven at the same speed; a third crank driven at twice the speed of said first-noted cranks; connections from one of said slow-moving cranks for oscillating said walking beam; connections from the other slow-moving crank for rocking said rocker, connections from said third or fastmoving crank for operating said toggle; the

said parts being timed in synchronism soA that said toggle will straighten to press said rocker with augmented force,y alternately upon the downwardly moving sides of said walking beam; andthe said vtoggle will be flexed to relieve the upwardly moving sides of said walking beam from said augmented force.

4. In a mechanism of .the kind described the combination with a walking beam; of a rocker superimposed thereon and having traveling engagement therewith from one side to the other of the pivot thereof; a toggle. having connections to said rocker for forcing the-same downward with augmented pressure upon the downwardly moving sides of said walking beam; a walking-beam-actuating crank with connections for oscillating said walking beam; a rocker-actuating crank with connections for rocking said rocker; andatoggle-actuating crank with connections for oscillating said toggle; and connections between said three Vcranks driv-v ing said walking-beam-actuating crank and rocker-actuatingV crank at the' same speed; and driving said toggle-actuating crank' at twice the speed of the other two cranks whereby the said cranks will be operated in synchronism and the said toggle will straighten to force said rocker with augmented pressure upon the downwardly moving sides of said walking beam, first on one side and then on the other of its pivot.

5. A mechanism of the kind described comprising a walking beam; a rocker having traveling engagement with said walking beam; from one side to the other of the pivot thereof; means timed in synchronism for oscillating said walking beam for rocking said rocker and for pressing said rocker alternately against the downwardly moving sides of said walking beam; and a pawl and'ratchet driving rdevice operative from said walking beam andA transmitting its power to some of said crank shafts.

6. A mechanism of the kind described comprising a .walking beam; a rocker having traveling engagement with said walking beam; from one side tothe other of the pivot thereof.; means timed in synchronisni for oscillating saidwalking beam, for rock- Aing saidrocker and for pressing the said rocker alternately against the downward moving. sides of said walking beam; vand mechanism operated from said walking beam. 1

7L In a mechanism of the kind described, the combination with a walking beam; of a rocker superimposed on said walking beam and having Va traveling movement thereon from one side to the other of the pivot there- Yof;a yoke; rods connecting said yoke to the upper portion of said rocker; a toggle operative to depress and raise said yoke and rods; two relatively, slow-moving cranks'y operating at the. same speed' butset one ahead of the other; connections between one of said cranks and said walking beam for oscillating the' same; connections between the other ofy said cranks 4and said rocker for rocking the same; and a third crank rotated Iat twice .the speed of said first-noted cranks and havingconnections to said toggle for straightening andlflexing'the same, the said parts vbeing ldriven in synchronism and so timed that said toggle will straighten to produce an augmented downward pressure of said rocker on the downwardly moving side Aof said walking beam, first on' theone side and then on the other, the flexing movement of the said toggle serving t'o alternately relieve the upwardly moving sides "of saidl walking beam from; the toggleproduced pressure "delivered through said rocker.

T8. A mechanism of the kind described comprising a walking beam; a rocker having traveling engagement'with said walk-l ing beam, from one side tov the other of the pivot thereof; and means timed in synchronism for oscillating said walking beam, forv rocking said rocker and for augmenting the weight of ysaid rockeralternately upon the downwardly moving sides of saidwalking beam; and a positioning device holding the pivot thereof; a yoke; rods connecting said Y yoke tothe upperfportion yof said rocker;a

toggle operative. to depress and raise said yoke and rods; two relatively slow-moving cranks operating at the 'same speed but set.V

one ahead of the other; connections between one of said cranks and said walking beam for oscillating the same; connectionsibetween the other of saidV cranks and said rocker for rocking the same; and a third crank rotated atrtwice the speedl of said first-noted cranks and having connections to said toggle for straightening and flexing the same; the said parts being driven in synchronism and so timed that said toggle will straighten toproduc'e'an augmented downward pressure of said rocker on the downwardly moving side of-said walking beam,

first on Ythe oneside and then onthe other, the flexing movement of the said toggle serving to alternately relieve the upwardly -mov-V ing sides of said-*walking beam from the toggle-produced pressure delivered through said rocker; and a pawlan'd ratchet'driving deviceroperated from the oscillation yofthe saidV walking beam'.

l0. A VmechanismY of lthe kind described,v

comprisinga walking beam; a rockerr'superimposed upon and having a travelingmovement thereon from one side to the other of the pivot thereof; means for oscillating said walking beam; means for-*rocking said rocker in synchronism therewith softhat itsweightV will b'e thrown.alternatelyV upon the downwardly movingsides of said-walking beam; and means'for delivering power from said walking beam.l

Intestimony whereof I aiiix signature in presence of two witnesses. l Y

' Y WILLIAM H. 'FOLSOlvI VWitnesses: a Y Y j EDAVS; VVOLFF;l Y v KATHERINE WILLIAMS.

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