US1234563A - Starting device for internal-combustion engines. - Google Patents

Description

P. POVLOTZKY.

STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION man NOV- 21. 1916.

1 ,3%,56S Patented July 24, 1917.

4 SHEETS-SHEET 1-- anemia:

. P. P'OVLOTZKY. I STARTING DEVICE FOR INTERNAL comsusnow ENGINES. I APPLICATION FILED NOV- 2?, I916. 1,3 2,563, htented July 24, 1917.

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Patented July 24, 191?.

P. POVLOTZKYr APPLICATION FILED NOV. 27,1916.

STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES.

III J I IVAP'I IdlWl imam HHH I illl lll QM MMZ P. PUVLOTZKY. V STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATIUN FILED NOV. 21] 1916.

Patented. July 24, 1917.

4 SHEETS-SHEET 4 FIIIL P PQVL -TZKY, OF CHI GO, L I O STARTING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented July 2st, 1917..

Application f led November 27, 1916. Serial No. 133,621.

To all LU/$07M it may concern.

Be it known that I, PHILIP PovLo'rzKY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Starting Devices for Inter rial-Combustion Engines, of which the fol-. lowing is a specification.

This invention relates to that class of starting devices for internail-combustion engines in which a spring motor is employed.

The invention has for its object to provide a novel and improved mechanism whereby the spring of the motor is rewound by the engine after the same has been started, and also to provide novel and improved means for preventing over-winding of the spring, the winding mechanism being automatically uncoupled after the spring has been wound to a predeterinined degree.

Other objects and advantages of the pres ent invention will be pointed out in the detailed description appearing hereinafter, and in order that the same may be better understood, reference is had to the accompanying drawings forming a part of this specification.

In the drawings Figure l is a plan view of the mecl Fig. 2 is a side elevation thereof;

Fig. 3 is an enlarged end view;

Fig. 4 is a central longitudinal section on the line 4l4 of Fig. 3;

Fig. 5 is a face view, partly broken away, of a worm wheel;

Fig. 6 is a perspeetive view of one of the elements of the mechanism;

F 7 is a perspective view showing the opposite side of said element;

Fig. 8 is a perspective view of a clutch member Fig. 9 is a perspective View of a cooperating clutch member;

Fig. 10 is a perspective view of certain parts of the mechanism, disconnected, and

Fig. 11 is a perspective View showing the manner in which the spring is anchored at its ends.

Referring specifically to the drawings, 15 denotes a suitable housing inclosing the starting mechanism, said housing being provided with end flanges 16 and 17, respectively, to which are secured, by bolts 20, end plates 18 and 19, respectively, for closing the ends of the housing. In the housing is a transverse partition 21: enlarged. at the sen ianisin ter and formed with a bearing 22 for a spring-actuated driving shaft 23. This shaft is also supported in a bearing 24; formed on the end plate 19. Between the partition 21 and the end plate 19, is located a spring 25, the same being coiled around the shaft 23. One end of the spring is fixed t h Sh t 2 y being i rted i to 1ongitudinal notch 26 in the latter, and the other end of the spring is secured to the wall of the housing 15 by icing inserted into an undercut groove 27 therein, said grooved portion of the housing being reinforced as indicated at 28.

On that end of the shaft which is inclosed in the housing 15. is mounted a worm wheel 27 having a hub 26 to receive said shaft, the worm wheel being loose on the shaft, In mesh with the worm wheel 27 is a worm 28 journaled in a bearing 28 on the outside of the housing 15.. The worm has a bevel gear 29 at one end, and at its opposite end a reduced angular portion 28 for the applica tion of a wrench or other tool when it is desired to turn the worm by hand. The bevel gear 29 is in mesh with a bevel gear 3.0, the shaft 32 of which is journaled in a bearing 3.1 on the housing 15. On the shaft 3.2 is fixed a spur gear 33 which meshes with an idler pinion 34 the latter in turn meshing with a pinion 35. The pinion 34k has a shaft 36 supported in the end plate 18, and the pinion is loose on a starting shaft 37 passing through the end plate 18. It will be seen by the foregoing that the motion of the pinion 35 is transmitted through the pinion 34L, gear 83, gears 30 and 29 and worm 28 to the worm wheel 27 at a greatly reduced speed. The Shaft 37 has a suitable driving connection with the engine crank shaft, and the gearing just described is provided for the purpose of winding the spring 25 as will be described more fully hereinafter.

Alongside one face of the worm wheel 27 a rotatable member in the form of a large disk 38 having a hub 38 provided with an external annular groove 39, the disk being loose on the hub 26 and also extending over and seating loosely on the outside of the bearing hub 22. The disk is loosely mount ed on these hubs in order that it may he slid in the direction of the length of the shaft toward and from the worm wheel :27. The disk 38 has two dian'lctrically opposite latch pins 10 extending outward from one of its faces and passing through apertures 4-1 in the web of the worm wheel 27, the length of the pins being such that they may project from the web of the worm wheel on the side opposite the side where the disk 88 is positioned, and upon backing the disk away from the worm gear the pins are retracted. The disk 88 is shifted by means of a fork 42 straddling the hub 88 in the groove 89. The stem 48 of this fork passes through an aperture in the wall of the housing 15 and has on the outside thereof an enlarged head 45 which is made fast to a longitudinally slidable rod 74.

On that side of the worm wheel 27 from which the pins 40 project is located another rotatable member 46 in the form of a large disk having an elongated hub 47 partly supported on the shaft 28, which latter terminates within said hub. This disk has two diametrically opposite peripheral wings 48 pointing in opposite directions, and alternate edges of these wings arerecessed to form seats 49 for the pins 40, said seats engaging the pins when the disk 46 is turned and when the pins 40 protrude from the worm wheel :27. The disks 88 and 46, and the worm Wheel 27 are now coupled to turn as one, and when the pins are retracted out of the path of the wings 48, the disk 46 is disconnected and is free of the .worm wheel.

The outer surface of the hub 47 of the disk 46 is formed with a screw-thread 49", and on this threaded portion of the hub is mounted, for travel thereon, a nut 50 which is the hub of a clutch member 51, the cooperating clutch member thereof being shown at 58. The hub 47 has two diametrically opposite keys 52 seating in slots 58 in the periphery of the shaft 28, whereby the disk 46 is fixed on said shaft to turn therewith. To look the disk 46 against longitudinal movement on the shaft 28 a screw 54 is passed transversely through one side of the hub 47 and into and through the shaft 28, and embedded'in a recess 55 in the other side of the hub 47. The rear end of the hub 50 of the clutch member 51 must be gouged out as shown at 56 to permit insertion of the screw 54, and the wall of the housing 15 is apertured at 57 to permit a screw-driver to be inserted to pass into the hub 47 to engage the screw 54, the latter having a nicked end which is sunken below the threads 49 when the screw is in place. The clutch members 51 and 58 are ordinary cone clutches, the member 51 being entered by the member 58. The clutch member 58 is integral with or fixed to the shaft 87, the latter extending from one side thereof, and from the opposite side of said clutch member extends a short stub shaft 59 having a flanged extremity 60 in proximity to the end of the shaft 28. On the shaft 59 is loosely mounted a collar 61 which is split as shown at 62 to permit mounting. This collar is externally screw-threaded and is screwed into the forward portion of the hub 47, the latter being tapped to correspond to the threads of the collar. The outer end of the collar 61 has a number of teeth forming radial slots 68 in diametrically opposite pairs,

a suitable pair of these slots being adapted to receive two correspondingly located studs 64 projecting from the end of the shaft 28. Thus, the collar is locked to the shaft 28. The collar 61 prevents the clutch member 58 from backing and binding against the parts behind it when the clutch member 51 advances. The outer face of the clutch member 58 has a projecting lug 65 near its periphery for a purpose to be presently described.

The pinion 85 which is loosely mounted on the shaft 87 has a rearward hub extension 66, the outer surface of which is angular, and on which is slidable longitudinally a disk 67, said disk also turning with the pinion 85 by reason of the angularity of the hub 66. One side of the disk 67 has a grooved hub 68 which is straddled by a shifting fork 69 projecting through an aperture 70 in the wall of the housing 15, and formed on the outside of the latter with a head 71. The disk 67 has a peripheral lug 72 so positioned that it may engage the lug 65 of the'clutch member 58 when the disk 67 is shifted over toward said clutch member. The disk 67 is shifted by the fork 69, and the latter in turn is operated by a rod 78 extending parallel to the rod 74 on the outside of the housing. The parts 67 and 58 form a clutch or coupling between the shaft 87 and the gear 85.

The rods 78 and 74 are slidable in bearings 75 on the outside of the wall of the housing 15, and also throughan upward eX- tension 76 of the end flange 17. One end of the rod 78 passes through and is made fast to the fork head 71, and at an intermediate point the rod 74 passes through and is made fast to the fork head 45. It is the function of these two rods to actuate the shifter forks 42 and 69, and each rod is provided with a spring for drawing the same in one direction, the rod 78 to be normally drawn forward by a spring 77, and the rod 74'being drawn," normally, rearward by'aspring 78. The rods 78 and74 pass loosely through notches '78 in the end plate 19, and the rod 78 terminates in a short reduced portion 7 9 cut off with a bevel or slant, as shown, at 80. The projecting end of the rod 74 takes a sleeve 81 which is free to turn on the rod, but moves with the same when it is shifted longitudinally.

At the end plate 19 the shaft 28 projects, and said'projecting end has a pinion 82, which latter may be integral with, or separate from and fixed on the shaft; This'end plate also has, onthe outside, two stub shafts 83 and 81. On the stub shaft 83 is mounted a-large spur gear 85 which 1s 1I1 111eSl1' Wltll the pinion 82. On the stub shaft 845 is mounted, for swinging movement, the hub 86 of a cam 87, said hub also having a pro jecting radial arm 88'and= a projecting radial'finger 89, said cam, armand finger projecting in different directions. The cam 87 has a transverse oblique face to bear on the beveled end of the rod 73, so that when said cam swings in one direction, the rod'is pushed rearward, said rod being moved in" the opposlte dlrectlon by the spring 77. The

arm 88 pro ects onto the face of the gear into the path of a proj ecting pin or abutment 90 thereon.

The sleeve 81 mounted on the rod 7 1 has an integral projecting arm 91 whichis con nected to the finger 89, the following con nection being provided: Ona pin 92 passing through the arm 91 is loosely or'pivotally connected a stem 98 011 which is screwed one end of a tube9t. In the other end of this tube is slidably mounted a headed rod'95 which is linked or loosely con nected to the finger 89. The last-mentioned end of the tube is inflanged to retain the rod 95 by its head from pulling out of the tube.

Alongside the arm 91 is locateda lever 96 which is carried on a pin 97 journaled in a bearing 98 on the plate 19, and retained by .a nut or collar 99. This lever is free to be swung outward from the plate 19," it being provided with a guide and stop in the form of a yoke plate 100. The lower endof the lever 96 is apertured as shownat 101 for attachment of a rod or wire to actuate the same from a distance.

Adjacent to the free end of the arm 91 is a' detent 102 pivotally mounted at one end on a pin 103 projecting from the plate 19. The free ends of the arms 91 and 102 are opposite each other and in engagement, said ends being shaped to form a lap joint. To hold this joint closed, a spring 105 is anchored to the arm 91 to draw the same against the arm 102, and a weaker spring 106 is anchored to the arm 102, these two springs serving to draw the two arms in opposite directions and thus normally hold their free ends in lapping position. The arm 91 cannot swing beyond the lever 96 as it is held normally thereagainst by the spring 105, and an abutment 107 is provided to limitthe outward swing of the arm 102under the influence of the spring 106.

The lever 96 carries a projecting which seats in a recess 109 in the rear edge of the arm 91. Thus, when the lever 96 is swung outward the pin 108 draws thearm along, and as said arm is fixed to the rod 7 1; rod is shifted.

pin 10s The operation of the apparatus may be summarized as follows: Let it be assumed that the engine is about tobe started, and also that the spring 25 has been wound to store "suflic'ient power for the initial revo lutio1rof= the engine crank shaft to which the shaft37 is connected. It will be seen that the energy stored in the spring 25 is exerted on theshaft 28 and, in turn, this shaft, through the connections 5% and 52, tends-to turn the disk 46, and through the wings -18, by their engagement with the pins 40; the turning tendency is transmitted to the worm wheel 27. However, asthe worm wheel'27 isin mesh with the worm28, the parts are prevented from turning in view of the fact that motion cannot ordinarily be transmitted from a worm wheel to a worm.- Hence, it will be seen that the worm gearing prevents the spring 25 from unwinding. At this time the-disk 38 and pins 40 are in advanced position and are held from being retracted by the shifter43 and the rod74, the parts being held in this position by the spring 78. Also it will be noted that the coupling disk 67 is held spaced from the clutch member 58 by the shifter fork 69, so that the lugs 65 and 72 are out ofengagement. The shifter 69 is held in this position by the rod 78, the lat ter being heldretracted by the pin 90 on the gea1'85 bearing on the arm 88 which has rocked the cam hub 86 to engage the cam 87 against the beveledend 80 of the rod 7 3. To start the engine, the lever 96 is drawn outward whereby, through the pin 108, the arm 91 is drawn outward, and through the sleeve 81 the rod 741- is slid in the same direction, this movement of the rod actuating the shifter 43 to draw back the disk 38and retract the pins 10 so that the latter are now free of thewings 48. The disk 16 is now released, and the spring 25 acting upon the shaft 23 turns said disk 46 asit is coupled tothe shaft by the keys 52 and the screw 54E." The sudden turn of the disk 46 will, on account of the clutch member 51 being stationary, cause the latter to creep forward into engagement with the clutch member 58, the screw-threads 49 imparting this motion to the clutch member 51. The inertia will be present as long as the disk 16 turns in this direction, sothat the clutch member 58 and its shaft 37 will turn, thereby cranking the engine shaft through the connection between the latter and the shaft 37.

In the meantime it will be noted that when'the shaft 23 started to turn, the spur gear 85, through the pinion 82, was also put in motion, carrying the pin 90 away from the arm 88,. and as said arm is now free of pressure, the cam 87 will also be free to rock when impellodby the forwardly drawn rod 73 actuated by the spring 77. In other Words,- the cami87-will new not beable to of its path,

resist the forward stroke of the rod 73. This has the effect of advancing the disk 67 toward the clutch member 58 so that the lug 72 now comes into the path of the lug 65,

andthe disk 67 is now coupled to the clutch and 29, and worm 28 to the worm wheel 27.

However, the worm wheel is now loose on the rotating shaft 23, and being disconnected from the disk 46, said worm wheel, with the disk 38, turns idle in the opposite direction the shaft 37 is turning, without affecting the starting operation.

Now, assuming that the spring 25 un winds far enough to give the shaft 23 five revolutions, and that the ratio of the gears 82 and 85 is one to five, then by the time that five turns have been given the shaft 37 the pin 90 on the gear 85 will have traveled to the dotted position shown in Fig. 3, and again reached the arm 88 and started to push against the same. It will be remembered that when the lever 96 was actuated, the arm 91 was drawn outward through the pin 108. As soon as the arm 91 swung clear of the detent 102, the spring 106 drew the detent inward against the stop 107, and also the arm 91 was locked against return motion by the detent now deflected and positioned behind the same. The swing of the arm 91 was against the tension of the spring 78.

.While the arm 91 is directly in front of the detent 102, thelever 96 may still be held swung outward if the operator has forgotten to return it, or it may swing back against the end of the housing of its own weight without in any way affecting the operation. With the arm 88 swung upward by the pin 90, it will be seen that this operates to swing the finger 89 downward, an

through the parts 95, 94 and 93 the arm 91 'is pulled in the same direction or rocked on' the rod 74 against the tension of the spring 105. This continues until the arm 91 has swung so far inward that it clears the deflected detent 102. Vith the arm 102 out the arm move back with the rod 74 due to the pull of the'spring .78 on the latter. During this return movement of the arm 91, said arm will again lap the detent 102, but not completely on account of the pull or the parts 93, 94 and 95, and the pull of the spring 106 on the detent. Y

WVhen the rod 74 was moved back the shifter 43 advanced the pins 40 back into the path of the wings 48 of the disk 46 so that now after the energy of the spring 25 has been spent, and the engine has been started, the shaft 37 operates the worm wheel 27 to wind up the spring. The motion of. the shaft 37, for this purpose, is trans.

91 will immediately 7 mitted to the shaft 23 through the pinion 35, pinion 34, gears 33, 30 and 29, worm 28,

worm wheel 27, pin 40 and disk 46 to shaft 23. The spring is now rewound, the clutch member 58 turning with the shaft 37, but said clutch member not being coupled to the clutch member 51 as there is no clutching action except when the clutch member 51 is driven by the shaft 23 and advanced toward the clutch member 58.

As the spring 25 is now being wound up at a greatly reduced speed, the pinion 82 imparts motion to the gear 85 counter-clock wise so that the pin 90 leaves the arm 88 against which it has been pressing, and said pin is carried around back to its original position. The release of the arm 88 by the pin 90 results in the release of the parts 89, 95, 94, 93 and 91 hitherto drawn toward the right. The spring 105, being stronger than the spring 106, will now draw the arm 91, and also the arm 102, to alined and overlapping normal position.

In the meantime the gear 85 is rotating'in a counterclockwise direction, while the spring is being wound the live turns, so that the latter are nearly complete when the pin 90 strikes the arm 88 from the right side. As the pin continues to press the arm 88 toward the left, the cam 87 rocks toward the right, forcing the rod 73 inward to push, by means of the shifter 69, the disk 67 out of reach of the lug of the clutch member58. This disconnects the gears 35, 34, etc., from the shaft 37 and the winding of the spring ceases, and as the shaft 23 now stops turnwith the pin 90 pressed against the arm 88, and the rod 73 retracted against the tension of the spring 77 during the entire time the device is not in use. The cycle of operation is now ended and the device rests wound up awaiting the actuation of the lever 96 for the pinion 82 and the gear 85 also stop,

useful for driving out the spring 25 from" the housing after the end plate 19 is removed. Blows can then be dealt on the inner end of the shaft 23 evenly by applyingthe tool alternately at one or the other recess 112. It will be noted that the swinging and sliding movements of the arm 91 have a tend-, ency to twist the spring 105 and the parts 93, 94 and 95. The spring, by reason of its flexibility, easily adjusts itself to these movements,'but the parts 93, 94 and 95 need lateral as well as vertical flexibility. This is assured by slightly rounding the pin 92 where it is linked to the stem 93, and by making a looped connection betweenthe rod 95-and the finger 89. r

The purpose of joining the rod 95 and the tube 91 in loose telescoping fashion, is to prevent binding of the parts if the travel of the pin 90 should result in a push on the rod 95 too far to the left. The function of the rod 95 is only to draw and not to push on the arm 91.

One of the wings 4:8 has a projecting side pin 113, and the opposite face of the clutch member 51 has a projecting side pin 11 1. W hen the disk 46 and the clutch member 51 are assembled, the pins 113 and 11st will be laterally spaced from each other a short distance, and when the spring 25 unwinds to start the engine and the disk 46 turns, the pin 113 will move away slightly from the pin 114. However, when the disk 46 turns in the reverse direction during the winding up of the spring, the tendency will be for the clutch member 51 to close in on the disk in view of the screw-thread 4L9, and be tightened to the disk. This must be prevented in order to obtain the proper operation of the clutch member 51 when the spring unwinds, and hence when the disk 46 turns, the pin 113 will strike the pin 114:, and prevent the two parts from screwing together, thus leaving the clutch member 51 loose on the threaded portion 49 of the disk 46.

The shifting rod 74: may be connected by a lever or chain to the primer of the carbureter, so that while the engine is being cranked the carbureter will feed a large portion of gasolene for easy starting, and as soon as the rod 74 jumps back the engine will obtain the usual running mixture through the return of the primer.

I claim 1. In a starting devicefor internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch member operatively connected to said member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the worm wheel, said gearing including a worm in mesh with the worm wheel, and means for coupling said gearing to the starting shaft and for uncoupling the same.

2. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch member ope atively connected to said member, a cooperating clutch member fixed on the starting shaft, a drive gearing be tween the starting shaft and the worm wheel, said gearing including a worm in mesh wlth the worm wheel and a gear loose on the starting shaft, and means for coupling said loose gear to the starting shaft.

3. In a starting device for internal-co1n bustion engines, a starting shaft, a driving shaft, aspring connected to the driving shaft for turning the same, a worm wheel. loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch member operatively connected to said member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the worm wheel, said gearing including a worm in mesh with the worm wheel and a gear loose on the starting shaft, and means for connecting said loose gear to the second-mew tioned clutch member.

4:. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch member operatively connected to said member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the worm wheel, said gearing including a worm in mesh with the worm wheel and a gear loose on the starting shaft, a member carried by the loose gear and slidable thereon, an abutment on the second-mentioned clutch member adapted to be intercepted by the member on the loose gear for turning said gear, and actuating means for said member.

5. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the spring-winding member, a clutch member operatively connected to the second-mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the spring-winding member, and means for coupling said gearing to the starting shaft and for uncoupling the same.

6. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the springwinding member, a 'clutch member operatively connected to the second-mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing be tween the starting shaft and the springwinding member, said gearing including a gear loose on the starting shaft, and means for coupling said loose gear to the starting shaft.

7. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-Winding member loose on the driving shaft, a member fixed on the driving shaft, means for couplingsaid member to the springwinding member, a clutch member operatively connected to the second-mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the spring- Winding member, said gearing including a gear loose on the starting shaft, and means for connecting said loose gear to the second-mentioned clutch member. 8. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-wind ing member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the springwinding member, a clutch member operatively connected to the second-mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft; and the springwinding member, said gearing including a gear loose on the starting shaft, a member carried by said loose gear andslidable thereon, an abutment on the second-mentioned clutch-member adapted to be intercepted by the member on the loose gear for turning said. gear, and actuating means for said member. a

9. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the springwinding member, a clutch member having a screw-threaded, actuating connection with the second mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft andthe spring-winding member, and f'means for coupling said gearing to the starting shaft and for uncoupling the same. V 1 0. Ina starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving' shaft for turning the same, a spring-winding'member'loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the springwinding member, a clutch member having a screw-threaded actuating connection with the second-mentioned member, means for preventing the clutch member from being locked on the member to which it is connected, a cooperating clutch member fixed on the starting shaft, a drive gearing be.- tween the starting shaft and the spring winding member, and means for coupling said gearing to the starting shaft and for uncoupling the same. a

11. In a starting device for internal-com= bustion engines, a starting shaft, 'a'driving shaft, a spring connected to the driving shaft for turning the same, a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch :inember having a screwthreaded actuating connection with the second-mem tioned member, a cooperating clutch member fixed on the starting shaft, a drivegearing between the starting shaft and the worm Wheel, said gearing including a worm in mesh with the worm wheel, and means for coupling said gearing to thestarting shaft and for uncoupling the same.

12;In a starting device for'internal combustion engines, a startingshaft, a driving shaft, a spring connected to the driving shaft for turning the same,"a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a' clutch member having a screw-threaded actuating connection with the second-mentioned member, and means for preventing the clutch member from being locked on the member to which it is connected, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft'and the worm wheel, said gearing including a Worm in mesh with theworm wheel, andmeans for'coupling said gearing to the starting shaft and foruncoupling the same.

v 13. In a starting device forinternal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaftfor turning the same, a spring-Winding member loose on' the driving shaft, a slidable member'carriedby the springwinding member and carrying a latch pin, a member fixed onthe driving shaft and positioned to intercept the latch pin to couple said member and the spring-winding member together, means for operating the latch-' carrying member, a clutch member opera tivelyconnected to the aforesaid member which is fixed on the driving shaft, a 00- operating clutch member fixed on-the starting shaft, a drive gearing between the starting shaft and the spring-winding member, and means forcoupling said gearing to the starting shaft and for uncoupling the same. i '14:. 'Inastarting-deVice for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving connected to the shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to and for uncoupling the same from the spring-winding means, actuating means for said coupling means, said actuating means including a slidable member, a spring connected to said slidable member for moving the same in one direction, a swinging arm operatively connected to the slidable member, a levgr having means for engaging said arm to draw the aforesaid slidable member in another direction, a detent engageable with the arm for holding the slidable member against a return movement, a clutch member operatively connected to the aforesaid member which is fixed on the driving shaft, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the spring-winding member, a clutch for said gearing, a slidable actuating member for said clutch, a spring connected to said slidable actuating member for moving the same in one direction, a cam for moving the slidable actuating member in another direction, a swinging member operating the cam and having a connection with the aforesaid arm to disengage the same from the detent, and means controlled by the driving shaft for actuating said swinging member.

15. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to and for uncoupling the same from the spring-winding means, actuating means for said coupling means, said actuating means including a slidable member, a spring connected to said slidable member for moving the same in one direction, a swinging arm operatively slidable member, a lever having means for engaging said arm to draw the aforesaid slidable member in another direction, a detent engageable with the arm for holding the slidable member against a return movement, a clutch member operatively connected to the aforesaid member which is fixed on the driving shaft, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the spring-winding member, a clutch for said gearing, a slidable actuating member for said clutch, a spring connected to said slidable actuating member for moving the same in one direction, a cam for moving the slidable iLCtlIIltlllg member in another direction, a swinging member operating the cam and having a connection with the aforesaid arm to disengage the same from the detent, a rotatable 1nember driven by the driving member and having an abutment, and an arm extending from the swinging member into the path of the abutment.

16. In a starting device for intcrnal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a worm wheel loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member and the worm wheel together, a clutch member operatively connected to said member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the worm wheel, said gearing including a worm in mesh with the worm wheel, means for coupling said gearing to the starting shaft and for uncoupling the same, and means controlled by the driving shaft for timing the operation of both of the aforesaid coupling means.

17. In a starting device for internal-combustion engines, a starting shaft, a driving shaft, a spring connected to the driving shaft for turning the same, a spring-winding member loose on the driving shaft, a member fixed on the driving shaft, means for coupling said member to the springwinding member, a clutch member operatively connected to the second-mentioned member, a cooperating clutch member fixed on the starting shaft, a drive gearing between the starting shaft and the spring winding member, means for coupling said gearing to the starting shaft and for uncoupling the same, and means controlled by the driving shaft for timing the operation of both of the aforesaid coupling means.

In testimony whereof I affix my signature.

PHILIP POVLOTZKY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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