US2389232A - Oscillating or reversing mechanism - Google Patents

Description

Nmf.2o,194.ls.- J W, oNLON 2,389,232

OSCILLATING OR REVERSING MECHANISM Filed Aug. 19, 1943 Patented Nov. 20, 1945 i UNITED STATES PATENT.. oFFlcE 2,389,232 osoILLATING R REvERsING MECHANISM l John W. Conlon, Granby, Conn. K Application August 19, 194s, seria1No.`499,257

2 claims. (01.121-97') This invention relates to a fluid actuated oscillating or reversing mechanism for rotary motion through a portion of a revolution.

Many machines in common usage require a certain agitating or opposite motion for their functioning, such as a washing machine, or certain spraying devices for liquids, or in certain machine work it may be desirable where rotation of a part is to be reversed in less than one complete revolution thereof. More or less complicated mechanisms are frequently employed for the obtaining of such a motion as here referred to and where such mechanisms are used certain necessary precision parts are apt to get out of p order.

One of the objects of this invention is to provide a device which may be of simple constructionl with its parts easily manufactured and assembled.

Another object of this invention is to provide a device which may be automatically actuated through the use of fluid power, such for instance as water under pressure.

Another object of the invention is to` provide an apparatus which may be adjusted to move oppositely through various angular extents.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is an end view of the device;

Fig. 2 is a section of the mechanism;

Fig. 3 is a fragmental sectional view of the casing and the valve mechanism therein and taken on substantially line 5-5 of Fig. 4;

Fig. 4 is a central section taken at substantially line 4 4 of Fig. 1;

Fig. 5 is a section on line 5-5 of Fig. 4;

Fig. 6 is a section on line 6 6 of Fig. 4 with the valve in the same position as shown in Fig. 5.

Fig. 7 is an elevation of the casing block.

In proceeding with this invention I have provided a hollow casing and a rotor member within the casing, the rotor member being sufficiently small with reference to the inside of the casing as to provide an annular chamber. The rotor is provided with an abutment which extends across this chamber and serves as a means to have fluid impinged against it to actuate the rotor. Avalve is provided for directing fluid first against one side of the abutment of the rotor and then against the other side with means for automatically shifting the direction of the impinging fluid v past the abutment. Its outer surface 38, off

so that alternating motion or reversing motion of the-rotor member may be produced.

With reference to the drawing, the casing l0 is formed of halves and I2. Thesevhalves are placed together as shown in Fig. l and held by bolts I3. Each of these halves'is substantially cylindrical with circular recesses I4 centrally 1o'- cated. Bearing openings I5 and I6 are provided in each half while a somewhat thickened portion I1 is provided extending outwardly from the periphery of the cylindrical outer surface. Opposite this portion I1 an enlargement also extends inwardly as at I8 byveither a partof the casting of the casingor by reason of vra separate piece being Asecured `.by boltsV I9 or by .welding thereto. A bore 2| extends through this thick.- ened portion l1, |8 for the accommodation of the valve 22. Conduits cross this bore whichiare controlled bythe valve. y As shown in Fig. 3 there are crossingconduits 23 and 24r whilethe valve 22 has crossingconduits 25 and `26 so arranged that when 26 is in line with 24 conduit 25 is out of registry with `conduit 23 and vice versa when conduit 25 is in` registry with conduit 23 the conduit 26 will be rout of registry with the conduit24f f y y At another point axiallyy spaced along the bore 2| there are conduits 21 and 28 which cross the bore 2| while at another' point axially spaced along the valve 22 and at a location to align with'the conduit 21 and 28 the valve has conduit 29 and 30 so provided that when 29 is in align with 21 conduit 30 will be out of align with conduit 28 and vice versa when 30 is in alignment with 28 the conduit 29 will be lout of align with conduit 21.

The rotor is designated generally 3|, see Fig. 2, and consists of a hub portion 32 with trunnions 33 and 34 extending axially from eitherside of the surface ofthe hub 32 and the inner surface of the casing. An abutment 33 is fastened by means of the bolts 31 to the hub 3| and is of a length substantially the width of the recesses I4 .of the interior of the casing. This abutment extends radially entirely across the annular chamber 35 preventing the passage of any fluid course, has a close t with theA inner circular surface of the recess I4.

With rthe rotor member 3| assembled in the Casing and fluid entering through the conduits the valve.

24, 26 (Fig. 5) of the valve the same will impinge the abutment 36 and drive it counter-clockwise while any fluid on the other side of this abutment 36 will be driven through the conduit 21 and conduit 29 (Fig. 6) of the casing to exhaust therefrom. Should the valve be shifted to cause conduit 23, 25 to be in alignment and likewise 28, 30 opposite rotation will occur.

In order to mechanically shift the valve I have mounteda disc dil: (see. Figs; 1 and 4f) on the trunnion.,-34 of the rotor with arms 4l and 42 on this disc in such a position as to engage the laterally extending pin 43 (see Figs. 1 and 4) cf As the disc 40 rotates counterclock- Wise lthe arm 4I will strike the pin- 43 and shift the valve from the position it is then` in to the.

opposite position described so that fluid Which is always impressed upon the conduits 23, 24-Will reverse its flow into theannular chamber. Lihe-v Wise the exhausting ports will be reversed. As the rotor starts in theY opposite clockwise direction the arm '42l will then becaused to'approach the pin'll3` andwhen this arm strikesA the pin 43 the valve will be again shifted. Thus, therotor will! be caused to move Ain oppositedirections and this rotation will alternate through the arc equal to'-r the distancebetween the arms 41', 42between which the pin 43extend's. The arms. are carried 'by a U-shape member 4.5V which maybe adjusted along the disc 4U by' the arm being threaded through one of! the legs of the. member and' binding cnthedisc. Y y i In orderf that the valve may bevstopped so that the fluid'condui'ts are in alignment a pin 46 is provided `Whichl will engage stops: 41:' and 48 in lthe casing to limit the" movement. of the pin 46 and'- valve which isiactuated:

VIclam: f 1i. An oscillating mechanism comprising'a casing",fa.` 'rotor member rotatably mounted in said casing,` said member and casing` being soVV constructed and arranged as tol provide an annular chamber between them, an abutn'lentcarried` by the rotoritcextend radi'ally'across the said chamber, a boss on said casing extending: intorsaid annular chamber in the path vof rotation. of said rotorabutment', spaced channels extending laterally through said boss and casing to direct fluid against either side oi said abutment, and spaced channels extending laterally through said abutment to exhaust iluid from either side of said abutment, a valve intersecting said channels and having spaced pairs of channels extending laterally therethrough, said valve being movable to align one of each pair of channels therein with a channel of each pair of channels in said casing to control the flow of fluid to one channel or the other and` atthe. same time control the flow of exhausting uid through said other channels, spaced arms carried by said rotor and adjustably movable about the axis of said rotor, a pin xed to 'said valve and extending therefrom into the path of travel of said arms .to be engaged thereby to move said valve to alternately open and close the oW of huid through said channels.

2. An oscillating mechanism comprising a cas-- ing, a rotor member rotatably mounted in said casing',r said member andcasing being so constructed. and arranged. as to: provide an annular chamber between them, an abutmentv carried by the rotor t0 extend radially across th'elv 'said chamber, a. boss env said casing extending into said annular.l chamber in the path of'rotation of said rotor abutment, spaced pairs of channels extending through said boss .to direct uid against either side of'said abutment, andl spaced' pairs of channels extending` through said abutment to exhaust fluid from either side of said abutment, a valve having pairs of spaced channels extendiingf laterally therethrough and with the channels of each pair extending in a plane common to a plane passing through a pair of channels in said casing, said valve beingvrotatable to align one channel of each pair of channels therein with a channel of each pair of channels in said casing to? controlv theflow of uid through. said channels in' said casing and 'means for automatically switching said-valve, said'. means comprising apin on said Valve and spaced arms carried by the rotor' to engage said4 pin to alternately shift Athe movement of said valve, sai'df arms being adjustably movable about the axis ofV said rotor;

r i f JOHN W. CONLON.

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