US635849A - Rotary engine. - Google Patents

Rotary engine. Download PDF

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US635849A
US635849A US68728898A US1898687288A US635849A US 635849 A US635849 A US 635849A US 68728898 A US68728898 A US 68728898A US 1898687288 A US1898687288 A US 1898687288A US 635849 A US635849 A US 635849A
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piston
abutment
packing
cylinder
rings
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US68728898A
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Cephas V Fite
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ROBERT H STOWE
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ROBERT H STOWE
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00Sealing arrangements in rotary-piston machines or engines
    • F01C19/10Sealings for working fluids between radially and axially movable parts

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  • This invention relates to rotary engines; and it has for its object to effect certain improvementsin engines of this type, especially in the packing of the various parts thereof and in the means for controlling the inlet and exhaust of steam, whereby a maximum amount of steam and power can be obtained.
  • the invention primarily contemplates an improved arrangement of valves and means for operating the same, whereby the engine can be readily controlled and reversed, and also improved devices for insur- 2o ing the proper steam-tight fit of the main.
  • Figure 1 is a side elevation of a rotary engine embodying the improvements contemplated by the present invention.
  • Fig. 2 is a vertical sectional view of the engine in a plane parallel with the axis 5 of rotation.
  • Fig. 3 is a vertical transverse sectional view on the line 3 3 of Fig. 2.
  • Fig. 4 is a detail elevation and edge View of one of the circular supporting-plates fitted to the inner side walls of the piston-charnber.
  • FIG. 5 is a similar detail view of one of the laterally-movable end packing-strips for the piston-wing.
  • Fig. 6 is a detail elevation of the single transverse packing-strip of the pistonwing.
  • Fig. 7 is a detail elevation of one of the spacing-rings fitted to the inner side walls of the piston-chamber.
  • the numeral 1 designates'the casing,'essentially comprising the cylindrical shell or rim 5-0 2, inclosed at its opposite sides by the cylinder-heads 3, securely bolted or otherwise suitably fastened in place to form the complete casing or cylinder, it of course being understood in the art that the term cylinder applies to the casing which houses the rotating piston and the other working parts of the engine, and this cylinder is provided at its lower side with the usual base 4 for securing the same on a suitable bed or foundation.
  • the cylinder or cas- 6o ing 1 is interiorly bored to form the circular piston-chamber 5 and a smaller similarlyshaped abutment-chamber 6, offset from the piston-chamber 5 in the same vertical plane as the latter and opening directly therein to provide for properly positioning the abutment, hereinafter to be more particularly referred to.
  • the circular piston-chamber 5 ac-' commodates for movement therein the concentric rotary piston 7, mounted fast on the drive-shaft 8, journaled in suitable bearings at the sides of the cylinderor casing and carrying the usual belt wheel or pulley for transmitting motion to the machinery which is to be driven from the engine.
  • the latter is made shorter in length than the width of the piston-chamber 5, and to compensate for this the cylinder or casing has fitted to theiopposite inner side walls of the piston -chamber the oppositely-located spacing-rings 9, preferably held tight against the cylinder-heads by the securing bolts or screws 10 passing therethrough and engaging the said rings.
  • the spacing-rings 9 are out away segmentally at their upper edges, as at 11, to conform with the'circle of the abutment-chamber 6, as plainlyillustrated in Figs.
  • the spring-pressed packing-rings 11 are provided at their inner edges with the inner peripheral flanges 14, which loosely fit within the peripheral rabbets 15, annularly formed in the outer peripheries of the circular supporting-plates 16, which are bolted or similarly fastened to the opposite inner side walls of the piston-chamber within the circle of the spacing-rings 9 and also within the circle of the peripheral end flanges 7 of the piston formed by the recessing of the ends of the latter, as shown in Fig. 2 of the drawings.
  • the circular supporting plates 16 at the opposite inner side walls of the piston-chamber 5 therefore provide for properly sustaining or supporting the packifig-rings 11 in position,while at the same time permitting said rings to be freely adjusted toward and against the ends of the piston under the influence of the pressure-springs 12, and in addition to the exterior peripheral rabbets 15 the said supporting-plates 16 are provided in their inner faces next to the ends of the piston with the annular channels or grooves 17, which produce the annular retaining-ribs 18 at the inner peripheral edges of said plates and the function of which retaining-ribs will be presently referred to.
  • the steam which is admitted within the circular piston-chamber 5 of the cylinder exerts its pressure against the piston-wing 19, projected radially from the periphery of the rotating piston 7 and traveling in close proximity to the circular wall of the said chamber 5, and in the present invention the said pistonwing is provided in its outer edge with the transverse packing groove or recess 20 and at its end edges with the radially-extending end packing-recesses 21, which are extended at their inner ends, as at 22, into the body of the piston 7.
  • transverse packing groove or recess 20 in the outer edge of the pistonwing .19 loosely accommodates therein the single transverse packing strip 23, whose outer edgeis normally held in steam-tight contact with the circular wall of the chamber 5 under the influence of pressure-springs 24, seated in sockets 25, formed in the pistonwing 19 at the base of the groove 20, said springs bearing against the inner edge of the said packing-plate 23.
  • the transverse packingstrip 23, in the outer edge of the piston-wing is provided with the longitudinally-disposed slots 28, which loosely interlock with lockingtongues 29, formed'transversely of the end packing-strips 30, near one end of the latter.
  • the end packing-strips 30 are loosely seated in the radially-extending end packing-recesses 21 of the piston-wing and are recessed or rabbeted at their ends, having the lockingtongues 29, so as to overlap the slotted ends of the strip 23, and at their opposite ends the said end packing-strips 30 are formed with lateral extensions 31, having therein guidenotches 32, disposed transversely of the strips and receiving therein the annular retainingribs 18 at the inner peripheral edges of the supporting-plates 16,the interlocking engagement of the ribs 18 with the notches 32 of the strips 30 preventing said strips from moving in a longitudinal direction, and therebyjumping out of place when the piston-wing enters the notch of the rotating abutment.
  • the said end packing-strips 30 are held in steam-tight contact with the inner faces of the spacingrings 9 and with the packingrings 11 by means of the pressure-springs 33 hearing against the inner edges of the strips and seated in suitable sockets formed in the piston-wing, as plainly illustrated in Fig. 2 of the drawings, and in addition to these springs 33 there may be also employed supplemental packing 34, interposed between theinner edges of the strips 30 and the bases of the recesses 21 receiving such strips.
  • the rotating abutment referred to is designated by the numeral 35, and this abutment registers and rotates within the circular abut- .ment-chamber 6, being mounted on an abutment-shaft 36, journaled in suitable bearings at the sides of the cylinder and having a gearwheel connection 37 with the piston or drive shaft 8, the two gear-wheels of said gear-wheel connection being of the same size to insure a synchronous movement of the piston and the abutment.
  • the said abutment 35 is provided in its periphery with a single longitudinally disposed notch 38, through which passes the piston-wing 19 in the usual manner, and this abutment-notch 38 is inclosed at its ends by the circular end heads 39, secured to the ends of the abutment.
  • a proper packing of the ends of the rotating abutment is effected by means of the IIO packing-rings 40, which are yieldingly held in steam-tight contact with the peripheral end edges of the abutment, or at least the heads thereof, through the medium of suitable pressure-springs 41, seated in sockets formed in the opposite side walls of the abutment-chamber 6, and the said packing-rings 40, which are interposed between the ends of the abutment and the adjacent walls of the cylinder or casing, are provided with inner peripheral flanges 42, loosely fitting in the exterior peripheral rabbets 43, formed in the peripheries of the circular supporting-plates 44, bolted or similarly fastened to the opposite inner side walls of the chamber receiving the abutment, said supporting-plates 44 providing for the proper support of the rings 40, while at the same time permitting the springs 41 to freely act upon the same.
  • the said packingrings for the ends of the rotating abutment 35 peripherally contact with the corresponding packing-rings 11 for the ends of the rotating piston, and at the points of contact between the rings 40 and 11 is arranged suitable packing45, held firmly in contact with the outer faces of the contacting rings by means of a follower-plate 46, adjusted by the set-screws 47, mounted in the heads of the cylinder, said packing and the followers 46 being arranged in suitable cavities or recesses formed in the inner sides of the cylinder-heads, as shown in Fig. 2 of the drawings.
  • the circular wall of the abutment-chamber 6 has formed therein at suitable points transverse packing-grooves 48, extending from side to side of the cylinder and having fitted therein suitable packing-strips 49, which normally press firmly against the periphery of the rotating abutment and form a steam-tight packing therefor, and by reason of fitting the ends of the abutment with the heads 39 said heads serve to hold said packing 49 in place when the abutment-notch 38 comes opposite the same, as will be readily understood.
  • valve-chambers 51 have mounted therein the rotary segmental cut-01f valves 52,Which work over the outer ends of the steam-ports and are carried by valve-shafts 53, journaled in the cylinder and connected at one end, by means of suitable gearing 54, with the abutment shaft, so as to move synchronously therewith and provide for automatically cutting off the supply of live steam at the proper moment during the operation of the engine, and in conjunction with these valves 52 there are employed the oscillatory auxiliary cut-off cocks 55.
  • the cut-oft cocks 55 are arranged to work in suitable bearings 56, intersected by the steam-ports 50 and alsocommunicating with exhaust-passages 57, which lead to suitable exhaust-pipe connections 58.
  • the said cut-off cocks 55 are provided with solid portions 59, which are adapted to cover and uncover the exhaust-passages 57 and also the steam-ports 50, and said cocks have attached to their stems (at one end) the oscillating links 60, pivotally connected by a connecting-rod 61, having a pin-and-slot connection 62 with the lower end of a controlling-lever 63.
  • This controlling-lever 63 is provided intermediate its ends with a bearing-yoke 64, pivotally supported at one side of the cylinder, and also carries a latch 65,'cooperating with a notched segment-bar 66, fastened on top of the cylinder and providing means for holding the lever 63 locked in its adjusted position.
  • the cylinder having communicating piston and abutment chambers, the rotating piston, a rotating abutment cooperating with the piston, supporting-plates fitted to the opposite inner side walls of both the piston and the abutment chambers, the said supporting-plates being duplicates and each provided with an exterior peripheral r'abbet, packing rings having peripheral flanges projecting into and slidably working within the peripheral rabbets of the supporting-plates, and means for yieldingly holding the packing-rings in contact with the end edges of the piston and of the abutment, substantially as set forth.
  • the cylinder having communicating piston and abutment chambers, a rotating piston, a rotating abutment cooperating with the piston, packing-rings supported in contact with the peripheral end edges of the piston and the abutment, the packing-rings at each end of the piston and the abutment being vertically alined and in peripheral contact, and packing held against the adjoining packingrings and spanning the joint at their points of contact, substantially as set forth.
  • the cylinder having communicating circular piston and abutment chambers, a rotating piston arrangedwithin the piston-chamber and having a piston-wing, the rotating abutment mounted within the abutment-chamber and having a peripheral notch or recess for said piston-wing, supporting-plat-es fitted to the opposite inner side walls of the piston-chamber and the abutment-chamber, packing-rings slidably engaging with the peripheries of the supporting-plates and yieldingly held in contact with the contiguous peripheral end edges of the piston and of the abutment, the packingrings at each end of the piston and the abutment being vertically alined and in peripheral contact, and adjustable packing held against the outer faces of the adjoining vertically-alined packing-rings, at their points of contact, substantially as set forth.
  • a rotating piston having a piston wing, a single transverse packing-strip loosely fitted to the outer edge of the piston-ring, end packingstrips loosely fitted to the end edges of the wing and having their outer ends lapping the ends of the transverse strip and loosely interlocked therewith, the inner ends of said end packing-strips sliding upon and having a positive interlocking engagement with the contiguous side portions of the cylinder, said interlocking engagement of the end packingstrips with the side portions of the cylinder preventing longitudinal displacement of the said strips, and a rotating abutment cooperating with the piston, substantially as set forth.
  • a rotating piston having a piston-wing, plates fitted to the opposite inner side Walls of the pistonchamber, and provided at their inner peripheral edges with annular retaining-ribs, a single transverse packing stri p fitted in the outer edge of the wing, end packingstrips fitted in the end edges of the wing and having an interlocking tongue-and-slot connection with the ends of the transverse strip, and also having notches at their inner ends which receive and slide upon the retainingribs of said plates, means for normally pressing all of said strips outwardly, and a rotating abutment cooperating with said piston, substantially as set forth.
  • the cylinder having communicating piston and abutment chambers, oppositely-located valve-chambers, a common live-steam chamber communicating with both of said valve-chambers, and oppositely-located steam-ports opening into the valve-chambers and a piston-chamber and having exhaust-passage connections therewith, the rotating piston having a pistonwing, the rotating abutment cooperating with the piston and its wing, suitably-rotated out 01f valves working within the valve-cl1ambers and arranged to cover and uncover the steamports communicating therewith, oscillatory auxiliary cut-ofif cocks mounted in bearings intersected by the steam-ports and the communicating exhaust passages, oscillating links connected to the stems of said cocks, a connecting-rod pivotally connected to the two links, and a controlling-lever having a pinand-slot connection with the connecting-rod to provide for the adjustmentof said cocks in unison, substantially as set forth.

Description

No. 635,849. Patented Oct. 3|, I899,
c. v. FITE.
ROTARY ENGINE.
(Application filed July 80, 1898.)
(No Model.) 3 Sheets-Sheet I..
Wifgzssgs 1930,9101;
@Afiwrnzys,
Pa tented Oct. 3|, I899.
0. v. FITE. ROTARY ENGINE.
(Application filed July 80, 1898.)
3 Sheets-Sheet 2 (No Model.)
Wiigzssz-s No. 635,849. Patented Oct. 3|, I899. A
. c. v. FITE.
ROTARY ENGINE.
plication filed July 80, 1898 Nrrgn STATES PATENT ,rnren.
OEPHAS V. FITE, OF MOUNTHOLLY, NORTH CAROLINA, ASSIGNOR OF ONE- HALF TO ROBERT H. STOWVE, OF SAME PLACE.
ROTARY ENGINE.
SPECIFICATION forming part of Letters Patent No. 635,849, dated October 31, 1899. Application filed July 30, 1898. Serial No. 687,288. (No model.)
To aZZ whom it may concern.-
Be it known that LCEPHAS V. FITE, a citizen of the United States, residing at Mount Holly, in the county of Gaston and State of North Carolina, have invented a new and useful Rotary Engine, of which the following is a specification.
This invention relates to rotary engines; and it has for its object to effect certain improvementsin engines of this type, especially in the packing of the various parts thereof and in the means for controlling the inlet and exhaust of steam, whereby a maximum amount of steam and power can be obtained. To this end the invention primarily contemplates an improved arrangement of valves and means for operating the same, whereby the engine can be readily controlled and reversed, and also improved devices for insur- 2o ing the proper steam-tight fit of the main.
Working parts of the engine, thereby securing the full expansive power of the steam without loss of the same by leakage.
lVith these and other objects in view, which 2 5 will readily appear as the nature of the invention. is better understood, the same consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.
0 In the drawings, Figure 1 is a side elevation of a rotary engine embodying the improvements contemplated by the present invention. Fig. 2 is a vertical sectional view of the engine in a plane parallel with the axis 5 of rotation. Fig. 3 is a vertical transverse sectional view on the line 3 3 of Fig. 2. Fig. 4 is a detail elevation and edge View of one of the circular supporting-plates fitted to the inner side walls of the piston-charnber. Fig.
5 is a similar detail view of one of the laterally-movable end packing-strips for the piston-wing. Fig. 6 is a detail elevation of the single transverse packing-strip of the pistonwing. Fig. 7 is a detail elevation of one of the spacing-rings fitted to the inner side walls of the piston-chamber.
Referring to the accompanying drawings, the numeral 1 designates'the casing,'essentially comprising the cylindrical shell or rim 5-0 2, inclosed at its opposite sides by the cylinder-heads 3, securely bolted or otherwise suitably fastened in place to form the complete casing or cylinder, it of course being understood in the art that the term cylinder applies to the casing which houses the rotating piston and the other working parts of the engine, and this cylinder is provided at its lower side with the usual base 4 for securing the same on a suitable bed or foundation.
In the present invention the cylinder or cas- 6o ing 1 is interiorly bored to form the circular piston-chamber 5 and a smaller similarlyshaped abutment-chamber 6, offset from the piston-chamber 5 in the same vertical plane as the latter and opening directly therein to provide for properly positioning the abutment, hereinafter to be more particularly referred to. The circular piston-chamber 5 ac-' commodates for movement therein the concentric rotary piston 7, mounted fast on the drive-shaft 8, journaled in suitable bearings at the sides of the cylinderor casing and carrying the usual belt wheel or pulley for transmitting motion to the machinery which is to be driven from the engine. To provide for properly packing the end faces of the rotating piston, the latter is made shorter in length than the width of the piston-chamber 5, and to compensate for this the cylinder or casing has fitted to theiopposite inner side walls of the piston -chamber the oppositely-located spacing-rings 9, preferably held tight against the cylinder-heads by the securing bolts or screws 10 passing therethrough and engaging the said rings. The spacing-rings 9 are out away segmentally at their upper edges, as at 11, to conform with the'circle of the abutment-chamber 6, as plainlyillustrated in Figs.
3 and '7 of the drawings,'and the ends of the rotating piston 7 register and work within the 0 said spacing-rings 9, which, therefore, also serve to assist in packing the end portions of the piston.
The end faces of the rotating piston 7, at the peripheral edges thereof, which project 5 within the rings 9, are arranged to work in contact with the packing-rings 11, interposed between the ends of the piston and the heads of the cylinder, and said pacl'iing-rings are yieldingly held in steam-tight contact with the peripheral end edges of the piston by meansof suitable pressure-springs 12, ar-
ranged at different points and seated in spring-sockets 13, formed at the inner sides of the cylinder-heads, as plainly illustrated in Fig. 2 of the drawings. The spring-pressed packing-rings 11 are provided at their inner edges with the inner peripheral flanges 14, which loosely fit within the peripheral rabbets 15, annularly formed in the outer peripheries of the circular supporting-plates 16, which are bolted or similarly fastened to the opposite inner side walls of the piston-chamber within the circle of the spacing-rings 9 and also within the circle of the peripheral end flanges 7 of the piston formed by the recessing of the ends of the latter, as shown in Fig. 2 of the drawings. The circular supporting plates 16 at the opposite inner side walls of the piston-chamber 5 therefore provide for properly sustaining or supporting the packifig-rings 11 in position,while at the same time permitting said rings to be freely adjusted toward and against the ends of the piston under the influence of the pressure-springs 12, and in addition to the exterior peripheral rabbets 15 the said supporting-plates 16 are provided in their inner faces next to the ends of the piston with the annular channels or grooves 17, which produce the annular retaining-ribs 18 at the inner peripheral edges of said plates and the function of which retaining-ribs will be presently referred to.
The steam which is admitted within the circular piston-chamber 5 of the cylinder exerts its pressure against the piston-wing 19, projected radially from the periphery of the rotating piston 7 and traveling in close proximity to the circular wall of the said chamber 5, and in the present invention the said pistonwing is provided in its outer edge with the transverse packing groove or recess 20 and at its end edges with the radially-extending end packing-recesses 21, which are extended at their inner ends, as at 22, into the body of the piston 7. The transverse packing groove or recess 20 in the outer edge of the pistonwing .19 loosely accommodates therein the single transverse packing strip 23, whose outer edgeis normally held in steam-tight contact with the circular wall of the chamber 5 under the influence of pressure-springs 24, seated in sockets 25, formed in the pistonwing 19 at the base of the groove 20, said springs bearing against the inner edge of the said packing-plate 23. As the piston-wing approaches the abutment, to be referred to, and enters such abutment, it is necessary that the outward movement of the packing strip or plate 23 be limited, which is preferably effected through the medium of a pin-and-slot connection 26 27 between said strip or plate and the piston-wing, the pin 26 being fitted in the piston-wing and the slot 27 being formed transversely of the strip 23 ata point intermediate its ends.
Atits opposite ends the transverse packingstrip 23, in the outer edge of the piston-wing, is provided with the longitudinally-disposed slots 28, which loosely interlock with lockingtongues 29, formed'transversely of the end packing-strips 30, near one end of the latter. The end packing-strips 30 are loosely seated in the radially-extending end packing-recesses 21 of the piston-wing and are recessed or rabbeted at their ends, having the lockingtongues 29, so as to overlap the slotted ends of the strip 23, and at their opposite ends the said end packing-strips 30 are formed with lateral extensions 31, having therein guidenotches 32, disposed transversely of the strips and receiving therein the annular retainingribs 18 at the inner peripheral edges of the supporting-plates 16,the interlocking engagement of the ribs 18 with the notches 32 of the strips 30 preventing said strips from moving in a longitudinal direction, and therebyjumping out of place when the piston-wing enters the notch of the rotating abutment. The said end packing-strips 30 are held in steam-tight contact with the inner faces of the spacingrings 9 and with the packingrings 11 by means of the pressure-springs 33 hearing against the inner edges of the strips and seated in suitable sockets formed in the piston-wing, as plainly illustrated in Fig. 2 of the drawings, and in addition to these springs 33 there may be also employed supplemental packing 34, interposed between theinner edges of the strips 30 and the bases of the recesses 21 receiving such strips.
The rotating abutment referred to is designated by the numeral 35, and this abutment registers and rotates within the circular abut- .ment-chamber 6, being mounted on an abutment-shaft 36, journaled in suitable bearings at the sides of the cylinder and having a gearwheel connection 37 with the piston or drive shaft 8, the two gear-wheels of said gear-wheel connection being of the same size to insure a synchronous movement of the piston and the abutment. The said abutment 35 is provided in its periphery with a single longitudinally disposed notch 38, through which passes the piston-wing 19 in the usual manner, and this abutment-notch 38 is inclosed at its ends by the circular end heads 39, secured to the ends of the abutment.
A proper packing of the ends of the rotating abutment is effected by means of the IIO packing-rings 40, which are yieldingly held in steam-tight contact with the peripheral end edges of the abutment, or at least the heads thereof, through the medium of suitable pressure-springs 41, seated in sockets formed in the opposite side walls of the abutment-chamber 6, and the said packing-rings 40, which are interposed between the ends of the abutment and the adjacent walls of the cylinder or casing, are provided with inner peripheral flanges 42, loosely fitting in the exterior peripheral rabbets 43, formed in the peripheries of the circular supporting-plates 44, bolted or similarly fastened to the opposite inner side walls of the chamber receiving the abutment, said supporting-plates 44 providing for the proper support of the rings 40, while at the same time permitting the springs 41 to freely act upon the same. The said packingrings for the ends of the rotating abutment 35 peripherally contact with the corresponding packing-rings 11 for the ends of the rotating piston, and at the points of contact between the rings 40 and 11 is arranged suitable packing45, held firmly in contact with the outer faces of the contacting rings by means of a follower-plate 46, adjusted by the set-screws 47, mounted in the heads of the cylinder, said packing and the followers 46 being arranged in suitable cavities or recesses formed in the inner sides of the cylinder-heads, as shown in Fig. 2 of the drawings.
The circular wall of the abutment-chamber 6 has formed therein at suitable points transverse packing-grooves 48, extending from side to side of the cylinder and having fitted therein suitable packing-strips 49, which normally press firmly against the periphery of the rotating abutment and form a steam-tight packing therefor, and by reason of fitting the ends of the abutment with the heads 39 said heads serve to hold said packing 49 in place when the abutment-notch 38 comes opposite the same, as will be readily understood.
The peripheries of the synchronously-rd tating piston and abutment contact to provide a proper abutment for the steam, and at opposite sides of the plane of contact between these two members the cylinder is pierced by the oppositely-located steam-ports 50, which communicate with circular valve-chambers 51, communicating with a common live-steam chamber 51, formed within the top portion of the cylinder and adapted to receive a supply of live steam through the live steamsupply pipe 51 fitted in the cylinder, at the top thereof. The said oppositely located valve-chambers 51 have mounted therein the rotary segmental cut-01f valves 52,Which work over the outer ends of the steam-ports and are carried by valve-shafts 53, journaled in the cylinder and connected at one end, by means of suitable gearing 54, with the abutment shaft, so as to move synchronously therewith and provide for automatically cutting off the supply of live steam at the proper moment during the operation of the engine, and in conjunction with these valves 52 there are employed the oscillatory auxiliary cut-off cocks 55. The cut-oft cocks 55 are arranged to work in suitable bearings 56, intersected by the steam-ports 50 and alsocommunicating with exhaust-passages 57, which lead to suitable exhaust-pipe connections 58. The said cut-off cocks 55 are provided with solid portions 59, which are adapted to cover and uncover the exhaust-passages 57 and also the steam-ports 50, and said cocks have attached to their stems (at one end) the oscillating links 60, pivotally connected by a connecting-rod 61, having a pin-and-slot connection 62 with the lower end of a controlling-lever 63. This controlling-lever 63 is provided intermediate its ends with a bearing-yoke 64, pivotally supported at one side of the cylinder, and also carries a latch 65,'cooperating with a notched segment-bar 66, fastened on top of the cylinder and providing means for holding the lever 63 locked in its adjusted position. By throwing the lever 63'to its limit of movement'in one direction one of the cocks 55 will open up communication through one of the steam-ports 50, while the opposite cock will close communication through the other port 50 and open up the exhaust-passage 57 at this point. The throw of the lever 63 to an opposite position will necessarily reverse the positions of the cooks 50, and thereby provide for reversing the rotation of the piston, it of course being understood that the cooks 55 are set in reverse positions and provide for the operation described.
Changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.
Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-
1. In a rotary engine, the cylinder having communicating piston and abutment chambers, the rotating piston, a rotating abutment cooperating with the piston, supporting-plates fitted to the opposite inner side walls of both the piston and the abutment chambers, the said supporting-plates being duplicates and each provided with an exterior peripheral r'abbet, packing rings having peripheral flanges projecting into and slidably working within the peripheral rabbets of the supporting-plates, and means for yieldingly holding the packing-rings in contact with the end edges of the piston and of the abutment, substantially as set forth.
2. In a rotary engine, the cylinder having communicating piston and abutment chambers, a rotating piston, a rotating abutment cooperating with the piston, packing-rings supported in contact with the peripheral end edges of the piston and the abutment, the packing-rings at each end of the piston and the abutment being vertically alined and in peripheral contact, and packing held against the adjoining packingrings and spanning the joint at their points of contact, substantially as set forth.
3. In a rotary engine, the cylinder having communicating circular piston and abutment chambers, a rotating piston arrangedwithin the piston-chamber and having a piston-wing, the rotating abutment mounted within the abutment-chamber and having a peripheral notch or recess for said piston-wing, supporting-plat-es fitted to the opposite inner side walls of the piston-chamber and the abutment-chamber, packing-rings slidably engaging with the peripheries of the supporting-plates and yieldingly held in contact with the contiguous peripheral end edges of the piston and of the abutment, the packingrings at each end of the piston and the abutment being vertically alined and in peripheral contact, and adjustable packing held against the outer faces of the adjoining vertically-alined packing-rings, at their points of contact, substantially as set forth.
4. In a rotary engine, the cylinder, a rotating piston having a piston wing, a single transverse packing-strip loosely fitted to the outer edge of the piston-ring, end packingstrips loosely fitted to the end edges of the wing and having their outer ends lapping the ends of the transverse strip and loosely interlocked therewith, the inner ends of said end packing-strips sliding upon and having a positive interlocking engagement with the contiguous side portions of the cylinder, said interlocking engagement of the end packingstrips with the side portions of the cylinder preventing longitudinal displacement of the said strips, and a rotating abutment cooperating with the piston, substantially as set forth.
5. In a rotary engine, the cylinder, a rotating piston having a piston-wing, plates fitted to the opposite inner side Walls of the pistonchamber, and provided at their inner peripheral edges with annular retaining-ribs, a single transverse packing stri p fitted in the outer edge of the wing, end packingstrips fitted in the end edges of the wing and having an interlocking tongue-and-slot connection with the ends of the transverse strip, and also having notches at their inner ends which receive and slide upon the retainingribs of said plates, means for normally pressing all of said strips outwardly, and a rotating abutment cooperating with said piston, substantially as set forth.
6. In a rotary engine, the cylinder having communicating piston and abutment chambers, oppositely-located valve-chambers, a common live-steam chamber communicating with both of said valve-chambers, and oppositely-located steam-ports opening into the valve-chambers and a piston-chamber and having exhaust-passage connections therewith, the rotating piston having a pistonwing, the rotating abutment cooperating with the piston and its wing, suitably-rotated out 01f valves working within the valve-cl1ambers and arranged to cover and uncover the steamports communicating therewith, oscillatory auxiliary cut-ofif cocks mounted in bearings intersected by the steam-ports and the communicating exhaust passages, oscillating links connected to the stems of said cocks, a connecting-rod pivotally connected to the two links, and a controlling-lever having a pinand-slot connection with the connecting-rod to provide for the adjustmentof said cocks in unison, substantially as set forth.
In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.
CEPHAS V. FITE.
Witnesses:
CHASE BRENIZER, P. M. THOMPSON.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5032068A (en) * 1988-10-25 1991-07-16 Kurherr Waldemar H Displacement type rotary system steam turbine engine
WO1998006933A1 (en) * 1996-08-09 1998-02-19 Cordero, Medina, Auracelis Rotary piston machine
WO2012140172A3 (en) * 2011-04-12 2013-05-30 Rotary Evolutions Limited An expander

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5032068A (en) * 1988-10-25 1991-07-16 Kurherr Waldemar H Displacement type rotary system steam turbine engine
WO1998006933A1 (en) * 1996-08-09 1998-02-19 Cordero, Medina, Auracelis Rotary piston machine
WO2012140172A3 (en) * 2011-04-12 2013-05-30 Rotary Evolutions Limited An expander

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