USRE13317E - Valve-motion for rock-drills - Google Patents

Description

L. c. BA YLBS. nwn moms roa noox DBILLS. AlfPLIOATIOI III-11D SEPT. 19; 1911. Raissued Nov. 21, 1011. v

. INI/ TOR MC;

' WITNESSES:

er 1 MA RNE 1G.-

L. c. BAYLESL VALVE MOTION FOB BOOK DBILLS;

AYPLIQATIOI FILED SE1"! 9, 1911. Rgissued Nov. 21, 1911;

UNITED STATES PATENT OFFICE. LEWIS GONDICT I BAYLES, F EASTON, PENNSYLVANIA, ASSIGNOR TO ING-ERSOLL-BAND COMPANY, OF NEW YOBIQN, Y.,' A CORPORATION OF NEW JERSEY.

vnivn-m'orron 'ron noon-mums.

.13,31'1 Specification of Beissued Letters Patent. Reissued Nov, 21, 1911,

Original No. 985,385, dated February 28, 1911, Serial No. 541,290. Application for reissue filed Septemberfl,

1911. Serial No. 649,875

T ll hm it y mm. ton rod 3 to which the rock drill tool is Be it known that I, LEWIS C. Barnes, of attached. The cylinder is closed at its for Easton, Pennsylvania, have invented certain ward end by a head 4 and at its rearward new and useful Improvements in Valve-Moend by a head 5. A valve chest 6 is pro- 5 tions for Rock-Drills, and do hereby declare vided and is preferably mounted on therside that thejollowingis a full, clear, and exact of the cylinder. I also preferably so form description thereof, .referencebeing had to the valve chest and cylinder that they are the accompanying drawings, in whichdivided by a lane surface which is a con- Figure 1 is a central longitudinal "secstruction of t e utmost simplicity. v 10 tion -view part of a rock drill embodying 'The compressed, or live, air' is admitted my invention; Fig.- 2 is a section taken in to the valve chest by a pipe connected with the plane of the line 2-2 of Fig. 1 and lookthe threaded inlet 7 formed on the valve ingin the direction of thearrows; Fig. 3 is chest,'and, the valve alternately admits the" a section on the line 3-3 of Fig. 1 and looklive air to each end of the cylinder to force 15 ing in the direction of the arrows; Fig. 4 is the piston back and forth and alternately a view similar to Fig. '3 showing the valve permits the air, after it has done its work, in its position opposite to that shown in Fig. to escape from the cylinder. The form of -3' Figs. 5 to 11 inclusive are diagrammatic valve in this embodiment of my invention vlews showing the relative positions of the consists of a cylindri'bal-bgdyB, having three 20 parts throughout one complete double stroke wings 9, 10 and -11 extending radially thereof the piston from left to right and back from, and referablygat equal angles. These again; and Fig. 12 is a perspective view of WlIigS pre erabl' have plane faces, and the theval've. I wings preferab y taper outwardly, being 1 The object of. my invention has been to th nner ontheir outer edges than at the. "25 provide improvements in valve motions for point of, connection with a the body. The.

rock drills, which iin rovements shall have, valve body is mounted in a cylindrical b0 1,. among others," the ibllowing advantages: and the wings are situated'in radial slots so; that of providing a valve which shall 'be '12, 13 and 14, respectively and such slots 7 positive in its action and, at the same time, preferably haveparallel walls- In the walls requiring but little power to operate it; that of the slot lfl'. are formed inlet ports 15 andof great simplicity; that of enabling the 16, respeotlvely which extend-through the valve to operate with a veryslight movewalls of the cyhnder to the rearward and ment; that of positively retaining the valve forward epd s of the cylinder, respectively. in a given pos tion by an unbalanced pres- In the leftha'nd walls of the slots 13 and 14 .86 sure, and yet permitting the valve to be op- (as seen in F1 3 and -:4 r are formed ,erated by a comparatively slight pressure, branches17" an r 17", respectively, of 'an'exthat of remaining air tight even a tor-wear haust port 117,1 f' r the left-hand or rear! ha s'taken place, and to such ends m invenward end of the c linder. In the r1 ht-hand ftion consists in the-valve motion or rock 'walls of theisaid-slots-are formed ranches 40 drills hereinafter specified. 18" and 18", respectively, of an exhaust port In the accompanying drawings I have 18 for the right-hand end of the cylinder. illustrated one embodiment of my invention, The exhaust port 17 enters the cyhnder at a but. my invention is ca able of embodiment point, farther from the rear head 5 than in many different form and the illustrated the corresponding live an port 15, and the 45' embodiment is to be taken as typical only of exhaust port 18 enters the forward end of such many other possible-embodiments,- and the cylinder at a point farther from the my invention is not 'to be'limited to said forward cylinder head; than the corre- 10o embodiment or the details thereof. .spondmgmlet port 16. The wings of a In the accompanyin drawings" I have valve ag'e taper ed and of I5 thickness than 50 illustrated only so mnc of a rock drill as the slots 111 which they are s1tuated,so as to is necessary for the; derstanding of my permit a slight oscillatory movement, but

invention. In such draw' a cylinder 1 the faces of the wings are sejormed as to contains the usual piston 2 ving the pisfit ag'ai'nstthe walls of the slots and close the ports thereof at either limit of the movement of the valve. The area of each of the inlet port openings in the walls of the slot,

12 is preferably greater than that of each of the exhaust ports, as there are two exhaust ports for each end of the Cylinder, the combined areas ofthe two exhaust ports for one end of the cylinder being preferably less than the corresponding inlet port area.

In the operation of the above illustrated valve motion, by the practice of my method of operating valve motions, and assuming the parts to be in the position shown in Figs. 1, 2, 3 and 4, and the iston to be traveling in the direction of t e arrow shown thereon, the live air port 16 for the forward end of the cylinder is closed by the wing 9 of the-valve and live air is being admitted to the rear end of the cylinder through the exposed port 15, driving the piston forward. The valve in this position uncovers the forward exhaust portbranches 18 and 18", so that the air in front of the piston can escape. At this time the valve is firmly held in position by the unbalanced pressure of the ive air on the exposed face of the wing 9, and it is held from chatterward inlet ing or shaking in its socket by the pressure of the air on the exposed side of its cylindrical body, tending ,to' force that bod downward, as seen in Fig. 3. This condition is maintained until the piston, in its travel, has uncovered the rearexhaust port 17,.when .the live air back of the piston rushes u such port-and reaches the upper 'left-han face of the wing 10 and the lower left-hand face of' the wing 11, as seen in Fig. 3. As the live air pressure on the wings 10 and 11 is in the opposite direction, rotatively, from that on the' wing 9, and as their combined areas are substantially equal to but, as shown, actually less than, the area of the port covered by the wing 9, the valve is now in a substantially balanced condition, except for the friction dueto the crowding of the valve body against the side of its bore. The piston, continuing in its movement, closes the forward-exhaust port 18, thus entrapping the air in the forward end of the cylinder, and compressing such air, driving it up the'inlet port 16 andcausing a pressure upon the right-hand face of the wing 9, as seen in Fig. 3. This pressure, being unbalanced, throws the valve to the position shown in Fig. 4, an'o eration'which is performed with great spec and case, because the valve has been prepared therefor by the balancing of the live ai pressure thereon. The piston is now returned by a reversal of the cycle of operations before described. The live air now enters the forport 16, which has been exposed by the wing 9, and starts the piston rearward, the valve being rigidly held by the unbalanced live air pressure on such wing.

,ports is The rearward exhaust port 17 being uncovered by the valve, the air toward which the piston is traveling can escape through such ports. This continues until thepiston. exposes the forward exhaust port 18 when the live air passing through such port reaches the up er right-hand side of the wing 11, andt e lower right-hand side of wing 10, as seen in Fig. 4, and. thus balances the liveair pressure on the wing 9. This balances the valve, preparatory to. its being thrown. The piston, continuing, closes the rear exhaust port 17, thus trapping the air in the rear end of the cylinder-,pompressing it and forcing it up the inlet port 15 through which it reaches the wing 9 of the valve, and throws the latter again into the position of Fig. 3, when the entire cycle is repeated. In the diagrams shown in the drawingsthe hoi'izontal width of the inlet purposelyexaggerated tomake clear the feature of having a greater pressure area I onthe inlet valve wing than the combined pressure areas on the exhaust wings.

I preferably extend the cylindrical body of the valve .(and, consequently, the bore in which such body fits) up into the valve chest beyond the slots 1213and14, as

shown in Fig. 2. As the valve body is crowded toward the left, as shown in Fig. 2, by the live air, the side of the valve body toward the exhaust is crowded against the bore, or bearing, so that air is prevented from escaping over the end of the valve body and into the exhaust. The result is that air leaks up the live-air side of the valve body, and, being prevented from escape, as

described, presses on the upperf end of the valve body and forces the valve down uponthe plane surface of the cylinder upon-which the valve-chest rests. No such accmnulation of pressure could occur under the valve body, because any air getting under the valve body could escape to the exhaust and,

not being entrapped, no pressure could accumulate. This arrangement keeps the valve body pressed down upon the said plane surface, and prevents an escape of air beneath the valve body as well as above it, so that the valve is tight Without its having a bearing formed in the plane surface of the cylinder. To form such a bearing would involve some expense, and toform it in exactly the right position, so that when the valve-chest is in place on the cylinder, the said bearing would be'perfectly in line with the valve body (as would have to be in a commercial tool) would be quite an expensive operation.

It will be observed that a rock drill, or other fluid-operated percussion tool, constructed and operated according to my invention, is exceedingly simple. The valve is simple in construction consisting of but a single piece. It has but a slight move- .25 valve body ton,

ing the early part .of the travel of the pisby the pressure of the live air on asingle wing,

takes place,

the ports where a rotative effect opposite and cannot be shaken out of position by the unavoidable vibration of this type of tools. Notwithstanding the said great security against shaking the valve out ofposition, the valve is thrown to since 1t; is balanced before this movement by the admission of live air to from that of the live air pressure --before-.

, valve-chest .and

' airspace between the live air mentioned will be produced. This makes it possible to throw my valve with less pressure than that of the live air pressure. This ease of throwing my valve has two great advantages, viz: that the valve can be quickly thrown, and that the wear on the valve in turning is reduced to a minimum. Not only is my valve held from rotation by the unbal anced pressure of the live air on one of its wings during the early part of the piston travel, but as the liv'eair tends to force the the ,friction thus produced tends to prevent the accidental movement of the valve. The

pressure of the live air on the top of the-- ,mder 1b be made plain, and requires no special hearing 'for" the lower end of the valve body, and no exact ositioning of the valve in ny particular location on such surface.

My three-winged valve motion roviding, as it does, two exhaust ports, ena les me to provide a freer exhaust fora given length of movement of the valve than would be the case iffonly one exhaust port were provided. It is desirable not to have the live wing and the adjacent slot walls'too large, desirable to have valve, and this condition can be fulfilled in my three-winged :valv'e and yet ample exhaust space between the exhaust wing of the valve and the adjacent slot walls can be provided, because. there are two of such wings. The function performed by thetw'o exhaust wings with the branched exhaust ports could be performed by a single exaust wing and unitary exhaust slots. This is-the subject of another application for patent, Serial No. 525,022.

the valve is positively held in position the new'po'sition by the utilization of very little power,

against opposite bearing surface,

prevents the escape of air and therefore. a small movement of the and close. said ports I claim:

1. The combination of a cylinder, at pis ton,

a valve-chest, an'exhaustport opening into the valve-chest and a fluid-op'erated, oscillating valve arranged to open and close said port by'a movement toward and. away from the surface through 'whichit opens.

, 2. .The combination of a cylinder, a piston, a valve-chest, an exhaust port opening into the valve-chest and a fluid-operated, oscillating valve arranged to open and close said port bya movement substantially per-- pendicular to the, surface through which it opens.

v 3. The combination'of a cylinder, a piston,'a valve-chest, an exhaust port for each end of the cylinder, said ports opening into the valve-chest, and a fluid-operated, oscillating valve arranged to open and close said ports bya movement substantially perpendicular to the surfaces through which they open.

ton,

end of the cylinder, said ports opening into 4. The combination of a cylinder, a pisi a valve-.'chest, an exhaust port 'for'e'ach the valve-chest, and a fluid-operated oscillating valve arranged to open and close said .ports by a movement substantially perpendicular to the surfaces' through which'they open.

5. The combination of a cy1inder, a pis a valve-chest, an exhaust portfor each end of the cylinder,'said ports opening into. the valve-chest, and a fluid-operated, oscil.-'

ton,

lating valve arranged to open and'close said ports by a movement substantiallyfi'n line with the "openings of said ports in the valvechest. 6. The combination of a; cylinder, a piston, .a valve-chest, a separate exhaust port for each end of the cylinder, said portsopening into the valve-chest, and afiuid-operated valve having a plate-shaped part arranged to open-and clos'e said ports by a movement substantially erpendicular to the surfaces through whi'c they open into the valvechest.

7. The combination of a cylinder, a piss.

ton, a valve-chest, a separate exhaust portfor each end of the cylinder, said orts opening into the valve-chest, and auidoperated winged valve arranged. to open by a wing movement substantially perpendicular to the surfaces through which said port's open into the valve-chest.

8; The combination of a cylinder, a p'i san inlet and an exhaust" ton,-a valve-chest, I port connecting said valvechest with one end of such cylinder,

tering said cylinder at a point farther resaid. exhaust port enmoved from said end'of said cylinder than said inlet, a reciprocating valve adapted to 'close said ports in the valve-chest, the movevalvvheing toward and away ments of said from surfaces through which said ports open into the valve-chest, the closing movement of said valvefor the inlet port being opposite to its closing movement for the exhaust port, and'inlet and exhaust;- ports connected to the opposite end of the cyhnder and controlled by said valve, admission to the said first mentioned end of said cylinder being closed when the exhaust port is closed by the piston.

9. The combination of a cylinder, a piston, a valve-chest, an inlet and an exhaust port connecting said valve-chest with one end of. such cylinder, said exhaust ports entering said cylinder at a, point "farther removed from said end of said cylinder than said inlet, a reciprocating valve adapted to close said ports in the valve-chest, the moveinentsof said valve being toward and away from surfacesthrough 1 which said ports open into the valve-chest, the closing movement of said valve for the inlet ort being opposite to its closing movement or the exhaust port, andmeans controlled vbysaid valve for admitting air for the dpposite'e'nd of the cylinder, admission to the said first mentioned end of said cylinderbeing closed when the exhaust port is closed-by the piston, V

10. The combination of a cylinder, a piston, a valve-chest, a live air port connecting each end of said cylinder with said valve-chest, an exhaust port connecting each end of said cylinder with said valve-chest, said exhaust ports entering said cylinder at points farther removed from their respective ends than the corresponding inlet ports, and a reciprocatin' valve adapted to close said ports in the va ve-chest, movements of said valve being toward andaway from the surfaces through which said ports open into' the valve-chest, admission to the said first der opening toward said valve-in opposite directions, rclative to the reciprocation of the valve, admission to the said first mentioned end of said 1 cylinder being closed when the exhaust port is closed by the piston. V v 12. The combination of a cylinder, a piston, a valve-chest, live airport connecting each end of siiid cylinder with said valve-chest, an exhaust port connecting each end of said cylinder with said valve-chest,

said exhaust ports entering said cylinder at points farther removed from their respectwo ends than the corresponding inlet ports, and a reclprocating valve adapted to close ,said ports in the valve-chest, the inlet and exhaust ports on'the-same end of the cylinder entering the valve-chest from opposite directions relative to the line of movement of the valve, admission to the said first mentioned end of said cylinder being closed when the exhaust port is closed by the piston.

13. The combination of a cylinder, a piston, a valve-chest, a live air port connecting each end of said cylinder with said-gvalvechest, an exhaust port connecting each end of said cylinder with said valve-chest,-said exhaust ports entering said cylinder at points farther removed from their respective ends'than the corresponding inlet ports, and an oscillating valve adapted to open and close said ports by movements toward and away from the surfaces through which they enter the valve-chest. 14. The combination of a cylinder, a piston,' a valve-chest, a live air port connect-' ing each end of said cylinder with said valve-chest, an exhaust port connecting each end of said cylinder with said valvechest, said exhaust ports entering inder; at points farther removed rom their respective ends than the corresponding inlet ports and an oscillating valve adapted to open and close said ports, the inlet and exhaust ports on the same end of the cylinder approaching said valve from opposite directions, relative to the movement of the valve.

i 15. The combination of a cylinder, a piston', a valve-chest, inlet ports connecting said valve-chest with the oppositeiends' of said cylinder, exhaust ports connectin said "valve-chest with the opposite ends 0 said cylinderjbut at points farther retrieved said cyl-v from their respective ends than said :inlet I ports, said valve-chest having a single inlet chamber -therein and v a reciprocating valve adapted to close said ports y movements toward and away from the surfaces admission to the said first mentioned end of said cylinder being closed when the exhaust port is closed by the piston,

' 16. The combination of a cylinder, a piston, a valve-chest, inlet ports connectlng said valve-chest with the opposite ends of said 0 linder, exhaust ports connecting said valve-chest with the opposite ends of said cylinder, but at points fartherremoved from through which they enter'the valve-chest,

their respective'ends than said inlet ports,

said valve-chest having a single inlet chamber therein, a reciprocating. valve adapted to close said ports, the corresponding inlet .by'the piston.

17. The combination of a cylinder, a piston, a valve-chest, a winged valve in sai valve-chest, a sing cylinder and-exhaust ports extending from said valve chest to opposite ends.v of sand cylinder, but entering said cylinder at'points farther removed from their respective ends than the corresponding inlet ports, said valve being adapted to close said exhaust ports by movements toward and from the surfaces through which said ports enter said valve-chest.

18. The combination of a cylinder, a piston, a valve-chest, a winged valve in said by one of said wings, inlet orts extendin from said chamber to opposite ends of sai valve being adapted to close said exhaust ports, said exhaust ports approaching said valve from opposite directions, relative to the line of reciprocation thereof.

19. The combination of a cylinder, a piston, a valve-chest, said valve-chestfbeing divided from said cylinder by 'a geometrical surface and an oscillating valve mounted in said valve-chest on said surface and. substantially perpendicular to said surface.

. 20. The combination of a cylinder, a piston, a valve-chest, said valve-chest being dividedfrom said cylinder by a plane sur-. face, an oscillating valve mounted in, said valve-chest on said surface and on an axis perpendicular to said surface.

21. The combination of a cylinder, a piston, a valve-chest, an oscillating valve mounted in said chest and having wings, an inlet port connecting said cylinder and valverchest, and opening opposite one of said wings, an exhaust port connecting said valve-chest and cylinder, and opening opposite another wing.

22. The combination of'a cylinder, a pieton, a valve-chest, an oscillating valve mounted in said chest and havin wings an inlet port connecting said cy inder and valve-chest and opening opposite one of said wings,

site another wing, said exhaust port being farther from the head of the cylinder than said inlet port.

1e inlet chamber occupied by one of said wings, inlet ports extendingfrom said chamber to opposite ends of sai .slots ra iat-ing therefrom,

tapered wings occupying said valve-chest,a single inlet chamber occupied cupyin an exhaust port connecting said valve-chest and cylinder, and opening oppding live air and exhaust chambers, a valve pivoted between. said chambers and having a wing extending into each of'said chambers, said valve havin a cylindrical body, said body extending eyond said wings, and a cylindrical bore in said valve-chest'in which said body is pivoted.

24. The combination of a cylinder, a piston, and a valve chest, said valve chest having a c lindrical bore and walled slots radiat ng tlierefrom, a valve having a cylindrical body occupying said slots, and inlet and exhaust to said cylinder and adapted to be opened and closed by said wings.

25. The combination of a cylinder, a piston, and a valve-chest, said valve-chest having 'a c lindrical bore and parallel-walled a valve having a cylindrical body mounted in'said'bore and ports extending from the walls of said slots to said cylinderand adapted to be opened and closed by said wings.

26. The combination of a cylinder, a pismin, a valve-chest, said valve-chest being divided from said cylinder by a plane surface, a cylindrical bore in said valve-chest, substantially erpendicular to saidsurface,

arallel-wa led slots radiating from said ore, a valve having a cylindrical body mounted in said bore, and having tapered wings occupying said slots, and ports opening through the walls of said slots and extending to said cylinder, one end of said valve body being squared to fit said surface.

27. The combinationof a cylinder, a piston, a valve-chest, said valve-chest being di- I vided from said cylinder by a lane surface,

a cylindrical bore in said va ve-chest substantially per endicular to said surface, parallel-walled s ots radiating from said bore a valve having a. cylindrical body mounte in said bore,.and having tapered wings octhrong being squared to fit said surface, and exhaust ports opening through the walls of another of sa d slots and extending to opposite ends of said cylinder, respectively.

28. The combination of a cylinder, 9. piston,- a valve-chest, said valve-chest bein divided from said cylinder b alane. sur ace, a cylindrical bore in sai va ve-chest substantiall per ndicular to said surface, paralll-wa led s ots radiating from saidbore a valve having a cylindrical body moun 111 said bore and having tapered wings occupylng said slots, inlet ports opening through opposite walls of one of said slots and extending to opposite ends of said cylinder, respecti'vely one end of said valve body being mounted in said bore and wings ports extending from the walls of said slots slots, ,and

119 said slots, inlet --ports 0 ening o posite walls of one of sai slots, 5

and exten ing to opposite ends of said cylinder, respectively, one 'end'of said valve body slots on one side of said parallel-walledslot, a valve comprising a I 50'slot, said taper 55 wings attached squared to fit said surface, and exhaust ports opening through the walls of another of said slots and extending to opposite ends of said cylinder, respectively, said. exhaust ports entering said cylinder'at points farther removed from their respective ends of said cylinderthan the corresponding inlet ports.

I 29. The combination of a cylinder, a pis- 10 ton, a valve-chest, said valve-chest being divided from said cylinder by a plane surface, a cylindrical bore in said valve-chest perpendicular to said surface, slots radiating from said .bore, said bore extending farther into said valve-chest than do said slots, a

valve having a cylindrical body'mounted in said bore, said body extending into said bore beyond said slots, the opposite end of said valve body being squared to fit said surface,

and means on saidvalve body for control-,

ling ports in said slots, the pressure in the body being greater than the pressure on the other side thereof.

30. The combinationof a cylinder, a pis ton, a valve-chest, said valve-chest being divided from said cylinder by a plane surface, a cylindrical bore in said valve-chest perpendicular to said surface, opposite slots radiating from said bore, said bore extending into said valve-chest deeper than said slots,

a valve having a cylindrical body mounted in said bore and extending beyond said slots, *the lower end of said valve body being squared to fit said surface, said valve body having means in said slots for opening and said slots being closing ports therein, one of constantly occupied b on the opposite side 5 the exhaust.

31. The combination of live air, and a slot eing connected. with a part having a cylindrical body and a tapered wing attached thereto and mounted in said slot, said taper being such that said wing can seat 46 itself against saidwalls.

. 32. The combination of a part having a parallel-walled slot, a valve comprising a cylindrical body and a plurality of tapered .wings attached thereto and mounted in said being such that said wings can seat themselves against said Walls.

331 The combination of a-part having a parallel-walled slot, a

cylindrical body and a plurality of tapered thereto and mounted in said slot, said taper being such that said wings can seat themselves against said walls, said ;iggs being symmetrically placed on said 34. A cylinder havinginlet and discharge passages, its piston, a valve chest, and a valve comprising a central body portion and a plurality of wings projecting outwardly I beyond the body portion, said win being {8 arranged to control the opening an closing comprising acentral plurality valve comprising a" f both the inlet and discharge passages when the valve is at the limits of its movements.

35. A cylinder having inlet and discharge passages, its piston, a valve-chest and a valve comprising a central body portion and a plurality of wings projecting outwardly beyond the body portion, said wings being arranged to open and close both the inlet and discharge passages when the valve is at the limits of its movements.

36. A cylinder having inlet and discharge passages, its piston, a valve-chest and an oscillating valve comprising a central body portion and a plurality of wings projecting outwardly beyond the body portion, said wings being arranged to control the opening and closing of both the inlet and discharge passages when the valve is at the limits of its movements.

37. A cylinder having inlet and discharge passages, its piston, a valve-chest and an oscillating valve comprising a central body portion and a plurality of wings projecting outwardly beyond the body portion, said wings being arranged to open and close both the inlet and discharge passages when the valve is at the limits of its movements.

38. A cylinder having independent inlet and discharge passages for both ends, its piston, a valve-chest and a valve comprising a central body portion and .wings projecting outwardly beyond the body portion, said wings being arranged to control the opening and closing of both the inlet and discharge passages when the valve is at the limits of its movements.

39. A cylinder having independent inlet and discharge piston, a valve-c est and a valve comprising a central body portion and a plurality of wings projecting outwardly beyond the body portion, open and close both the inlet and discharge passages whenthe valve is at the limits of its movements.

40. A cylinder having independent inlet and discharge passages for both ends, its piston, a valve-chest and an oscillating valve body portion and a yond the body portion, said wings being arranged to control the opening and closing of both the inlet and discharge passages when the valve is at the limits of its movements.

41; A cylinder having independent inlet and discharge passages for both ends, its piston, a valve-chest and an oscillatingvalve comprising a centr Ll body portion and a plurality of wings projecting outwardly beyond the body port: on, said wings being arranged to open and close both the inlet and dischnrge passages when the va e is at the limits of its movem ents.

42. A cyllnder, i1 s piston, a valve chest, a

assages for both ends, its

a plurality of said wings being arranged to of wings projecting outwardly bevalve comprising a central body portion and a plurality of wings projecting therefrom, and inlet and discharge passages opening to the faces of the valve wings arranged to be ened and closed thereby.

43. A c linder, having in ependent inlet and discharge passa es for both ends of the cylinder and a fluid-actuated valve comprising a central body ortion and a plurality of wings projectin outwardly from the body portionarrange to simultaneously open the inlet passage for one end and the discharge passage for the other end of the cylinder.

4A. A c linder, its piston, a valve-chest having independent inlet and discharge passages for both ends of the cylinder and a fluid actuated .valve. comprising a central body portion and a plurality of wings pro 30 'jecting outwardly from the body portion ar-- wings projectin wings projecting outwardly discharge passages.

wings,

ranged to simultaneously open the inlet passage for one end and the discharge passage.

for the other end of the cylinder, and-closethe other inlet and discharge passages. 45. A cylinder, its piston, a valve-chest having independent inlet and discharge passa es for both ends of the cylinder and a fluid-actuated oscillating valve comprisin -a central body portion and a plurality o outwardly to simultaneously open the one end of the cylinder and for the other end of ortion arran fillet passage r the discharge. passage the cylinder.

46. A cylinder, its piston, a valve-chest having independent inlet and discharge passages for both ends of the cylinder and a fluid-actuated oscillating valve comprising a central body portion and a plurality of from the body ortion arran ed to simultaneously open the inlet assage or one end of the cylinder and ,the discharge passage for the other end of the cylinder, and close the other inlet and 47. A cylinder, its piston, aplural winged valve, a valve-chest, and independent inlet and discharge'passages for both ends of the cylinder opening to the faces of the valve said valve being arranged to simul' taneously open the inlet passage for one end and the discharge passage for the other end of the cylinder.

48. A cylinder, its piston, a plural winged valve, a. valve-chest, and independent inlet and the discharge discharge passages,

" and discharge passages linder opening to the faces of the valve Yngs, said valvebeing arranged to simultaneously open the inlet passage for one end assage for the other end of the cylinder, an close the other inlet and inder, its piston, a plural winged valve, 9. valve-chest, and ingle- 49 A c oscillatin I other end of the-cylinder. its piston, a valve-chest.

from the body two with external atmosphere,

in the valve chamber for both ends of the both endsof the cylinder opening to the faces of. the valve wings, said valve being arrange to" simultaneously op one end and the discharge passage.

50. A cylinder, its piston; oscillating valve, a valve-chest, and independent inlet and discharge passages for both ends of the cylinder openingv to the valve'being arranged to simultaneously open the inlet. passage for one end and the discharge pas:

faces of the valve wings, said sage for. the other end of the cylinder, and close the other inlet, and discharge 51. A cylinder, its piston, a vv sages for both three-winged oscillating valve having one I wing arranged to alternately open and close the inlet passages and the other wings ar ranged to alternately open and close the discharge pa'ssages;

52. A cylinder,

its piston, a valve-chest, independent inlet and discharge passages for both ends'ofthe-cylinder having ports opening into the valve-chest and a valve arranged to open and close said ports by movement substantially perpendicular the ports. 1

53. A cylinder, its piston, a valve-chest containing'a valve chamber having-three ra slots, one communicating dially disposed with the 'motivefluid inlet and the otherfor both ends of the cylinder inlet slot, discharge passages for both ends of the cylinder leading to theexhaust slots, and a three-winged oscillating valveseated with its wings located in said slots for alternately ingthe inlet and discharge passages.

'54. The combination of a vcylinde r,'a piston, a valve-chest, a live air port connecting each end of saidcylinder with said valve;

chest, an exhaust port connecting-each end of said cylinder with said valve-chest, and

a reciprocating valve adapted to Qpenan close said ports by movements away from the surfacesthrough which they enter the valv chest, the inlet and exhaust ports on the tions relative to the movement of the valve, said exhaust ports being of smaller area than said inlet ports.

55. The combination of a cylinder,"a pis-i ton, a valve-chest, an oscillating valve mounti ed in-said chest and havingwings on oppfif 4 site sides of its axis,.a-n inlet port connecting said-cylinder and valve-chest and opening oppositev one of said-wings, an exhaust port connecting said valve-chest and cylinder and opening opposite a wing-on the opposite side of the axis, the product of the area and distance from the axis of said exhaust port en the inlet passage for for the ,2; plural wirged passages. alve-chest having independent inlet and discharge as-"2;

ends of the cylinder and a to the facesof inlet passages, leading tothe opening and clos- I toward and same endof the'cylinder approaching said valve from opposite direc being less than the corresponding product from the head of the cylinder than said inreciprocating valve adapted to open and close said ports by movements toward and away from the surfaces through which they enter the valve-chest, the inlet and exhaust ports on the same end of the cylinder approaching said valve from opposite directions relativeto the movement of the Valve, said exhaust ports being of less area than said inlet ports, and entering the cylinder farther from the head of the cylinder than the corresponding inlet ports.

In testimony that I claim the foregoing as my invention, 1 have signed my name in presence of two witnesses, this 16th day of August, 1911.

' LEWIS CONDICT BAYLES.

Witnesses:

' EDWIN J. PRINDLE,

J. FREUDENVOLL. I

of the inlet .port.

56; The combination of a cylinder, a piston, a valve-chest, an oscillating valve mounted in said chest and having wings on opposite sides of its axis, an inlet port connecting said cylinder and valve-chest and opening oppositeonp of said wings, an exhaust ort connecting said valve-chest and cylinder and opening opposite a wing on the opposite side of said axis, said. exhaust port being farther let port and of smaller area than said inlet port. 57. The combination of a cylinder, a piston, a valve-chest, a live air port connecting each end of said cylinder with said valvechest, an exhaust port connecting each end of said cylinder with said valve-chest, and a (Ionics of this patent may be obtained for five cents each, by addressing th fcommissloner of Patents. a Washington, D. 0. l

Images