US1200619A - Mechanical movement. - Google Patents

Description

F T.-JO HNSO N. MECHANICAL moyzmsm. APPLICATION FiLED APR. 27,1914- .Patented Oct. 10,1916.

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Ina/e22???" F. T. JOHNSON.

MECHANICAL MOVEMENT,

APPLICATION FILED APR-27.1914.

J y mi VII/llIIIIIIIIIIIIIIIIIIIIIIIIIIll/I FRANCIS T. JOHNSON, OF CHICAGO, ILLINOIS.

MECHANICAL MOVEMENT.

Specificationof Letters Patent Application filed April 27, 1914. Serial No. 834,575.

To all whom it may concern:

Be it known. that I, FRANCIS T. JOHNSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Mechanical Movements, of which the following is a specification.

'My invention relates to improvements in washing machines and is illustrated diagrammatically in one form in the accompanying drawings, wherein-- Figure 1 is an end elevation with parts in section and parts cut away; Fig. 2 1s a section along line 2-2 of Fig. 1; and Fig. 3 is a plan detail of the clutch mechanism.

Like parts are referred to by like letters throughout the several figures.

A 1s a substantially cylindrical washing machine tub having at its upper end a recessed part A I A is the door of the tub held against the wall at the bottom of the recessed part A by the cross-piece A which may be turned to underlie the wall of the tub and be tightened on it by the handscrew A.

A is the overflow from the tub and A the supply pipe.

. A is a solid cleat to guide the clothes in the tub attached to theside wall of the tub at either end and corrugated at A and provided with a comparatively narrow clearance, in actual practice about one-sixteenth of an inch in width, as at A above the bottom wall of the tub. The tub is supported on one side by a spindle A in a bearing A on the end frame A and is a further spur gear C pinned on the other side to a shaft B which shaft is rotatably mounted in the bearings B B on the frame B The bearing B is carried in a boX member B which is supported from the frame 13 and together with the frame forms a housing for the driving mechanism, which mechanism I will now describe.

C is a drive. shaft carrying a drive pulley C driven by a belt C from any suitable source of power. It is rotatably mounted in the bearings C C and carries a pinion C in mesh with the spur gear 0. This spur gear C is rotatably mounted on the pin C carried by the frame B It is in mesh with similarly supported on the frame B Thus these two spur gears rotate in opposite directions.

'F is a pinion F D, D are pins projecting outwardly from the spur gears C, C. Rotatably mounted on them are bearing sleeves D upon which are mounted, held in position by the set screws D the spring carrying sleeves D. These spring carrying sleeves have hollow lugs D downwardly depending therefrom, and slidable in these lugs are piston rods or plungers D supported by the springs D Attached to the end of these rods is a chain D and this chain passes over a sprocket drum D rotatably mounted on the shaft B.

E 1s a clutch ring keyed to the shaft B carrying a clutch arm E pivotally mounted thereon. a

E is a clutch slot in the drum D E E are curved clutch arm operating fingers mounted on a carriage E slidable on the guides E.

E is a link to move the carriage along the guldes, and E is a lever arm pinned to the control rod E whereby the carriage and link may be moved by means of the hand wheel E The rod E is free to. slide in the bearings E, E and is provided with a pin E in opposition to a pin E on the bearing E so that, when in the position shown in Fig. 2 the clutch is locked in the out .position by lifting up the bandwheel E and then rotating it .to bring the pin E upon the other side of the pin E the clutch may be thrown in.

F are brackets supported on the frame members A B provided for .holding a wringer.

F is a sprocket chain leading up to the wringer not shown andadapted to drive it. F is a sprocket for driving this chain. This sprocket is mounted on a shaft F in a bracket or yoke F which yoke is pivotally mounted on the shaft F and provided with controlling handle wheels F. On the shaft in the same plane as the spur gears C C. It will be noted that the spur gear C m0ves in a clockwise direction and the spur gear 0 in a counterclockwise direction, so that when the hand wheels F are manipulated to bring the pinion F in mesh with the spur gear C the tendency is to make that spur gear move toward the right, thus effectually looking it in position. When it is in mesh with C the reverse is the case, so no locking means are needed to hold the spur gear and the'p inion in mesh..

f Patented Oct. 10, 1916.

down toward the tub, the end at D will be carried up away from the tub, and the tub will then be rotated in a clockwise direction.

As the rotation of the gears continues, however, the part D will commence to recede from the tub and the part D will approach it, and the reciprocation of the tub will be reversed. The springs at the end of the chain give a flexible drive. The tub thus rotates or oscillates back and forth as long as the chain reciprocates. It will be obvious that any suitable velocity ratio between the tub and chain may be provided, so that if a slight movement of the tub is desired a large sprocket drum will be used and if a large movement of the tub is desired a small sprocket drum will be used. I have shown a device in which my tub rotates approximately through an arc of not more than 180, but it might rotate through 360 or less, depending entirely upon the relative sizes of the interacting parts.

I have used the term flexible band and wheel as applied to the chain and sprocket,

as it is obvious that mechanical parts might be used other than the chain and sprocket shown. The same is true of the term crank pin. The crank pin does not need to be driven necessarily by gears but might be driven in other ways. They do not need to opposite directions and means mounted on said gears to support the ends of the chain to reciprocate the chain and oscillate the sprocket.

2. A mechanical movement comprising a sprocket, a chain in mesh with and riding over said sprocket, a pair of gears, means for rotating them in opposite directions at the same velocity, the two ends of the chain being-fattached one to each of the gears at points separated by an angle of180 3. A driving mechanism for an osillatin body comprising a pair of gears of equa diameter inmesh one with the other, means for rotating them, crank pins projecting from the surfaces thereof at equal distances from the centers of rotation, said pins' being' separated by an angle of 180, a loose belt I said pins being separated one attached at its ends to each of said pins and a driven member over which said belt travels.

4. A mechanical movement comprising a pair of crank pins separated by an angle of 180, means for rotating these crank pins in opposite directions at a fixed angular Velocity, a flexible band attached at each end to one of said pins and a wheel driven by the reciprocation of the flexible band.

5. A mechanical movement comprising a pair of rotating crank pins, means for rotating them at a common angular velocity, said pins-being separated one from the other by an angle of 180 a flexible band having its two ends attached one to each of said pins, an oscillatable wheel over which said band travels in driving relation thereto, and a yielding connection between said pins and said band.

6. A mechanical movement comprising a. pair of crank pins separated by an angle of 180, means for rotatmg these crank pins in opposite directions at a fixed angular velocity, a flexible band attached at each end to one of said pins, a wheel driven by the reciprocation of the flexible band andja yielding connection between said pins and said band.

7. A mechanical movement comprising a pair of rotating crank pins, means for rotating them at a common angular velocity,

mm the other by an angle of 180, an extensible flexible band having its two ends attached one to each of said pins, and an oscillatable wheel over which said band travels in driving relation thereto.

8. A mechanical movement comprising a pair of crank ins separated by an angle of 180, means f5 in opposite directions at a fixed angular ver rotating these crank pins locity, an extensible flexible band attached at each end to one of said pins and a wheel dr1ven-by the reciprocation of the flexible band. L

9. A driving mechanism comprising a r0- tatably mounted member, a flexible band in engagement with the periphery thereof, a pair of gears and means for rotatin them in opposlte directions, the ends of said flexible band being attached one to each of said gears. i

10. A driving mechanism comprising a rotatably mounted member, a. flexible band in engagement with the periphery thereof, a

pair of gears and means for rotatin them in oppos te directions, the ends of said flexible band being attached one to each of said gears and an elastic connection between the ends of the band and the gears.

11. A driving mechanism comprising a rotatably mounted member, a flexible band in peripheral engagement therewith, a pair of cranks and means for rotating them the ends of said band being mounted-one to each of said cranks and a yieldable connection between the cranks and the ends of the band.

12. A driving mechanism comprising a rotatably mounted member, a flexible band in peripheral engagement therewith, a pair of cranks, and means for rotating them in opposite directions, the ends of said band being mounted one on each of said cranks.

13. A driving mechanism comprising a rotatably mounted member, a flexlble band in peripheral vengagement therewith, a pair of cranks, means for rotating them in opposite directions, the ends of said band being mounted one on each of said cranks, and a flexible connection between the cranks and the ends of the band.

14. A driving mechanism comprising a roand then the other away from the center of rotation of the rotatably mounted member to give it a reversing rotary movement, said means comprising a pan of cranks, means for rotating them, and gears upon which said cranks are mounted in mesh one with the other.

In testimony whereof, I aflix my signature in the presence of two witnesses this 15th day of April, 1914.

FRANCIS T. JOHNSON.

Witnesses:

Bnssm S. RICE, MINNIE M. LINDENAU.

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