US129953A - Improvement in rotary fluid-motors - Google Patents

Description

2 Sheets-Sheeti H. Q. HAWLEY& E. ANTHONY.

Rotary Fluid-Motors.

No. 129,953. ParentedJulyao, 137m lWITNESSE& INVENTOR.

l 2Sheets-Sheet2. H. Q. HAWLEY & E; ANTHONY.

Rotary Fluid-Motors.

No.129,953 Patentedlulyao, 1872.

INVENTOR.

UNITED 'STATES PATENT OFFICE.

` HENRY HAWLEY AND EDMOND ANTHONY, OF ALBANY, NEW YORK;

- ,SAID ANTHONY ASSIGNOR TO SAID HAWLEY.

IMPROVEMENT IN ROTARY FLUID-MOTORS.

specificati@ forming part 0f Letters Patent No. 129,953, dated July 3o, 1872.

Specification describing certain Improvements in Water-Motors, invented by HENRY Q.

HAWLEY and EDMOND ANTHONY, of `Al galli, county of Alba-ny and State of New To all whom 'it may concern:

Be it known that we, HENRY Q. HAWLEY and EDMOND ANTHONY, both of the city of Albany, in the county of Albanyr and State of New York, have invented certain new and useful Improvements in Rotary Fluid-Motors, which we think contain the great advantages of the rotary principle without being materially liablc to the defects hitherto found to attend its practical loperatiom'whether said motors are used as power-engines or for purposes of measurement; 'and that the following, taken in connection with .the drawing, is a full, clear,`

and exact'description thereof.

In the drawing, the machine being placed sothat'its outlet is over its inlet, Figure 1 is anelevation of the machine. Fig. 2 is a horizontal section of the same throughthe lines m m in Figs. 3 and 3a. Fig. 3 is a vertical sec- 'tion of the same through the lower wheel W, viz., the one next the stufIing-box. Fig. 3 is a vertical section of the same through the upper wheel W. Fig. 4 `is an interior view of theends of the machine, showing the groove G. f Fig. 5 Ais an end view of the wheels W and W. Fig. 6 is a view of the curved piston l?.

In the above drawing, A is a case, circular in form, or nearly so, and divided into two chambers, B and B,Fi`gs. 3 and 32, by a partition, H, through which the shaft at' passes. This shaft has its bearings in thc end ot' the case A, and attached to itare two slotted wheels, W and W', placed in said case, (one oneach side offthe partition H,)so that the slots of one are midway between the slots of the other, and "so thatthey may revolve ecceny trically'to said case in such manner that their peripheries touchor nearly touch the sameA at some pointbetween its inlet and outlet passages I and O, and being of such length that their .ends revolve against or very near the ends 'of the case `A and the sidesof the partition H. In'these ends of said case- (see Fig.

l. 4) are grooves G, slightlyeccentric to the said casein the drawing, but not always necessarily so; and, if desired, like grooves can be made in the partition H to correspond in position and action with those in the ends of the case A. S S are curved chambers in the wheels Wand W', extending entirely across their face, and at least of a depth equal to the length or' the pistons intended toV slide in them. P P, Fig. 3, are loose curved slides or pistons, formed to it the aforesaid chambers Si, and having pins 1J on oncor both sides arranged to fit the groove G for the purpose of keeping their outer ends near the periphery ofthe case A while they are revolving Within it with the wheels W and W; and, therefore, when the said wheels so revolve, the sides of their chambers S must move in and out against the sides of the pistons P, whereby the latter are only exposed to the pressure of the actuating-duid while projecting beyond the periphery -of the `aforesaid wheels, and, from their not so projecting on the side of said wheels where they touch the side ofthe case, cannot interfere with their action -at that point. Instead of using grooves and pins for guiding the pistons P, as above described, cams properly placed on the ends of the case A can, of course, be used for that purpose; but such construction is greatly inferior to the grooves and pin because it requires the inner cylinder to be hollow, and therefore there must be great leakage. K, Fig. 2, is an extension of the bearing for the shaft a: where it passes through the case A, and it has a shoulder turned around its end so that the recess in the pulley b may t around it. a is a chamber extending a little below the shaft and C is a screw fitted to it, so thatwhen said chamber is filled with grease andthe screw C is turned downward the grease is forced` around theshaft w and between it, the bearing K, and the pulley b, and thus the arrangement becomes an eiective anti-friction stufugbox and lubricator at the same time, the pulley b being attached to the shaft in such manner as to make a close joint with it. The dotted lines t t" and o'ro indicate passages or grooves on the inner periphery of the case A, upon its inlet and outlet sides, to regulate the action of the closed chamber between theV pistons P in taking and discharging the iuidpassing through the machine; and they are so located that when one piston closes the groove z' on the inlet side the piston next before it opens the groove o on the outlet side. This arrangement in rotary fluid-motors having an inner cylinder eccentric to an outer, although not a necessary condition when they are used for steam, is of great importance when they are used for liquids, as without it no such machine can be fitted with sufficient accuracy to permit its use when the prevention of waste is important, as in water-meters, or water-motors for actuating sewing-machines, &c. t t t, Fig. 5, is a recess around the shaft in the ends of the wheels W and W to make a communication between the inner ends of the chambers S'in order to permit the fluid to dow from one to the other easily, as they are enlarged or decreased in size by the action of the machine. If desired, these chambers can be cased to provide for wear, and, where pressure is required back of the pistons I?, can be connected, by a small passage-way, with the ease A to permit the actuating-fluid to enter; or springs can be placed in them below the said pistons for the saine purpose. The inlet I and the outlet O communicate, of course, with both sides of the partition H, as also do the passages t' 'i' and o o. One end of the case also is a separate piece, connected with it by the joint n c.

The machine being constructed as above described, its operation is as follows: The fluid, entering at I, presses against the piston P and thereby causes them and the wheels W and NV', .with which they are connected, to revolve together within the case A in such manner that the said pistons are exposed to the action of the said fluid while traversing the space between the said wheels and case left for its passage, and are not so exposed where said wheels and case are in contact; and inasmuch as one of the said pistons must always be traversing the section of the above space between the passages i and o', where it forms a tight partition between the fluid entering and that leaving the machine, it is evident that a fixed quantity of said uid must pass through said machine at each revolution of the wheels W and W', whether they revolve fast or slow, and, therefore, that it can be used as a meter as well as motor, or for both uses combined. It is also evident that the number of pistons used is not confined to three, but that any number more than one can be used, provided the passages t' t" and o o are arranged to regulate their action, as above described, and that friction-rollers can be used on their pins. It is also evident that, if it is desired to provide against future leakage between the case and wheel where th ey come together, it can be done by letting into the said case at that point a separate piece the width of the said wheel, and kept pressed against it by a spring or other pressure behind it, and that, although our aforesaid improvements are intended to avoid the necessity of using packings when the use to which the machine is to be put will not admit of friction, they can, of course, be used, if desired, in other cases.

Having now fully explained the nature and operation of our improvements in rotary fluidmotors, we would here state that we do not claim constructing machines of that character by placing within a circular case and eccentric to the same an inner hollow cylinder with slots cut in, or hollow chambers attached to, its periphery, in which said slots or chambers are placed separate pistons, arranged to be held against the periphery of the said outer case while revolving within it, whereby they compel the said inner cylinder, in which they slide alternately, to expose them to and withdraw them from the pressure of the liuid actuating the machine, because we are aware that such machines, when limited to the above construction, are not new.

Our improvements remove to a sufficient extent, if not entirely, the objections which have hitherto prevented their extended use 5 and we claim these advantages especially for our said .improvements when they are used in rotary water-meters and in rotary waterrmotors of small power, to the successful use of which absence of material friction and the prevention of waste are necessary conditions; and, therefore,

We claim, in rotary fluid-motors of the aforesaid construction- 1. The two or more wheels or cylinders revolving in and eccentric to an'outer case, circular in form, or nearly so, and provided with partitions to separate the said wheels or cylinders from each other, the same being constructed and operating substantially as and for the purpose above set forth.

2. In combination with the foregoing, the curved loose pistons, constructed and operating substantially as and for the purpose above set forth.

3. In combination with the subject of the first claim, the extended inlet and outlet passages i t" and o o, as indicated by dotted lines in Fig. 3, constructed and operating substantially as and for the purpose above set forth.

4. The pistons P and the extended inlet and outlet passages z' t" and o o, in combination with the case A, the wheel W, and the pin p and groove Gr, the whole constructed and operating substantially as and for the purpose above set forth. y

5. The passage t t t, connecting the pistonchambers in the wheel W, constructed and operating substantially as and for the purpose above set forth.

6. The combined stuffing-box and lubrieator, constructed and operating substantially as and for the purpose above set forth.

HENRY Q. HAWLEY.

EDMOND ANTHONY.

Witnesses:

FRANKLIN AMsDEN, TEN EYcK F, MosHER.

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