US1094056A - Starting device. - Google Patents

Description

J. J. BYRNB. STARTING DEVICE. APPLICATION FILED ooT.15, 1912.

J. J. BYRNE.

STARTING DEVICE. 31.1011111011 FILED 001.15, 1912.

1,094056 Patented Apr.21,1911

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@ 76196 e5. Jnuen zia/r J. J. BYRNB, STARTING DEVICE. APPLICATION IILE) 0GT.15, 1912./ l 1,094,055 Patented Apr. 21, 1914;

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55,' gine starts, the ratchet erably comprise a lever H, Figs. 2-5, 7 and 10, which is pivoted at I1. on the front plate A of t-he frame. Une 'end of this lever engages the journal pin f or other part on the free end of the arm f, and is adapted :to raise the end of the arm' and throw the gear F out of mesh with the gear G when the lever is swung on its pivot. At its other end the lever is provided with a suitable yielding pawl or detent 71, arranged to ngage the teeth of the gear wheel E. rlhe pawl shown, see Fig. 7, consists o'f a sliding spring-actuated plunger confined 1n a pocket 71,2 on the lever H and having a beveled end enabling the pawl to ride over the teeth of the gear E when the gear is being turned by the engine, while running forwardly. When, however, this gear is turned in the opposite direction, the pawl engages with the gear teeth and is drawn downwardly, thereby swinging the lever H on its pivot and raising the idler'gear F out of mesh with the gear G, as shown in Flg. 5, thus preventing the reverse movement of the engine from .being transmitted to the start-- In the modified construction shown in Fig; 6, the lever H and arm f are replaced by a single lever I, pivoted at d concentri-` cally with the gears E and E and having the idler gear F mounted on one end thereof and a spring-actuated detent i at. the other, and whlch coperates with the gear E" for swinging the lever I'to throw the idler gear F out of mesh with the gear G in the same lmanner as the detent It before described. This construction is simpler and involves fewer parts than the construction shown in Figs. 1-5, 7 vand 10,-but the latter construction gives a greater leverage for lifting the idler gear F out of mesh with the gear G.

In vthe operation of the device, when the starting crank is turned in the direction for driving the engineforwardly, the friction between'the gear E and the pawl engaging with the teeth thereof, togethei` with the weight of the idler gear F, will tend to turn the arm f (or the lever'I when this is used) downwardly to place the idler gear in mesh with the gear G, as shown in Figs. 4 and 7. This tendency will be greater as the turning so that a good engagement between the gears is insured. When `the en- 1 the gear E to turn freely relatively to the gear E, so that the movement of the engine .is not transmitted to the starting crank. Means are preferably provided for moving the idler gearont of engagement with the gear G after the engine has been started. In

' the construction shown, this is `accomplished by means of a ,cam orldisk K, pivoted at k on .the frame of the device and adapted to A-.p coperate with a part or extension c 'of the'arn'i f. j The disk shown is substantially mechanism permits circular with a iiat peripheral portion 7a2 and has a handle 7c3 for turning it. Vhen the disk is turned so that the flat portion is adjacent to the extension of the arm f', see Fig. 4, the arm is free to swing in the direction to place the idler gear 1n mesh with the gear G. When the disk is turned by moving the handle cs to the right in Figs. 1, 4, 5, 6 and 9 so that the circular part of the disk engages the extension lc of the arm f', Fig. 9', it will swing this part of the arm downwardly, thus raising the idler gear F out of mesh with the gear G. The starting mechanism can be again connected with the engine shaft by moving the handle la back so that the at face is parallel with the extension /c of the arm. Means are, however, preferably employed whereby the disk K will be turned to permit the idler gear to mesh with the gear G by the turning of the crank Z) for starting the engine. This is accomplished, in the construction` shown, by providing an arm L which is pivoted concentric wlth the disk K and the end of which is connected by a link Z to the end of the lever H. The arm is adapted to strike a pin Z3 on the disk K. When the crank b is turned to start the engine, th'e detent/t will swing the lever H on its axis and thus raise the link Z and swing the arm L so that the arm will strike the pin Z3 of the disk K andA turn the disk to permit the arm f to swing the idler gear F into mesh with the gear G.

The described mechanism readily lends itself to be operated by a suitable power device to vform a self-starting mechanism. For example, in the construction shown in Fig. 1l the crank b on the shaft B is replaced by a pinion M which engages with a rack m which can be reciprocated by any suitable power-actuated means. When the rack is moved so as to turn the gear M in the direction for starting the engine, this motion will be transmitted tothe engine shaft as heretofore described, and in case of back firing, the reverse motion of the engine will not be transmitted to the gear M. When the gear is rotated in the .reverse direction by the return movement of the rack, this motion will not be transmitted to the engine shaft owing to the ratchet connection between the gears E and E.

In the construction shown, the rack m is formed on orv connected to a piston N, which has a central slot n through which the shaft B projects. The piston is adapted to be `reciprocated in a cylinder n', which maybe'of any desired construction, being provided at its opposite sides with inlet ports controlled by a suitable valve (not shown) for the admission of air or gas under pressurey and with outlet ports which are uncovered by the piston at the opposite endsfof its stroke to permit the actuating Huid to be discharged from the piston.

i engine driven I claim as inyjinvetiiii 1. In astarting-djevice forfinternalcdm combinationwith any bustion engines shaft and a starting Shaft, of a train off-gears connecting said shafts, one of said gears beingfmovable into and out of operative relationto a coperating gear, a pivoted lever, and means secured .to

one arm of said lever which are adapted to` en age one of said gears, the other arm of sai lever engaging said movable gear,

. whereby the reverse movement ofsaid'train of gears swings said lever about its pivot to -'move saidl movable gear ,out of `operative position, substantially as set forth.

2. In a starting device for internal combustion engines, the combination with an engine drivenfshaft and a starting shaft, of v a train of gears connecting said shafts, one

Vof said gears being movable into and out of operative relationl to 'a coperatmg gear, a.

engine driven shaft and a starting shaft, of

a train of gears connecting said shafts, a ratchet mechanism between two gears'v of the train which permits said engine driven shaft to turn in a forward direction independently -of said starting shaft, oneof the gears of said train being Journaled 'on a pivoted member, and means actuated by the reverse movement of the gears for swinging said pivoted. vmember' to move the gear thereon out of mesh with its coperating gear, substantially as set forth. .y

4, In a starting device for internal combustion engines, the combination with an engine driven. shaft and a starting shaft, of a train of gears connecting said shafts, a pivoted member on which one of the Vgears of the train is 4journaled, and which is adapted to swing about its pivot to move the gear mounted therein into and out of mesh with a coperating gear, `and a lever adapted to be actuated by thereverse movement of said train of gears to swing said member to cause the gear mounted thereon to be moved out of mesh with its cooperating gear, substantially as set forth.

5. In a starting device for internal combustion engines, the combination with an engine driven shaft and a starting shaft, of'

a coperating gear, 'a lever, a pawl at,I one end of said lever whic'his adapted to engage with the teeth. of one vof the gears of v I said trainl when said gear turns 'in the rea` verse dlrecti'on, whereby the lever 1s' swung., on vits pivot to `swing said member to cause the gear vnl .ounted thereon to move out of meshwith .its coperating' gear, substantiallyy as setfforth. Y

6. yIn a starting device for-internalfcom y bustion engines, the combination'. with "an engine driven shaft anda starting shaft, of Y a train of gears connecting said shafts, one of said-gears being movableinto and out of.

operative relation to a coperatinggea-r, a

pivoted lever, and means secured'to one arm v of said lever which are adapted tonengageone of said gears, ,the other arm of' said lever engaging said miovabley gear, whereby the reverse ,movement of said train of gears swings said vlever about its pivot to move said movable gear out of operative position, and means for holding said movable gear out of mesh with. its coperating gear when the 1sngine is running, substantially as set ort 7. In a starting device for internal combustion engines, the combination with an engine driven shaft and a starting shaft, of a train of gears connecting said shafts, a ratchet mechanism between two ears of the train which permits said engine riven shaft to turn in a forward direction independently of said starting shaft, a pivoted member on which one of the gears of said train is jour# naled, means actuated by the reverse movement of the gears for swinging said pivoted memberv tc move the gear thereon`out of mesh with its coperating gear, and a c'am` adapted to engage said member to swing the same to move the gear journaled thereon 'out of mesh with its coperating gear when .be actuated by the reverse movementof said trainv of gears to swing said member tov cause the gear mounted thereon to be moved out of mesh with itstcop'erating gear, a

cam adapted to engage said member to svin'g the same'to move the gear journaled thereon out of mesh with itscoperating gear when Vthe engine is running, and connections between said lever and said cam for causing said cam to release said member whensaidl starting shaft is turned, substantially as set forth. t v.

9. In a start-ing devicefor internal combustion engines, 'the` combination with an engine driven shaft andl a starting shaft,

of a train of gears -oonneoting said shafts,

one of said gears being movable into and out ofoperative relation Wlth a coperating gear, a lever for ths mov-mg said movlable gear, means operated by the reverse movement of said train of gears t0 actuate 4 saidllever to move said gear out'of. operar engine driven shaft and a starting shaft, of

a train of gears connecting said shafts, one `of said gears bemg movable into and out of operative relation with al eoperating gear,

'a lever for thus moving said movable gear,

means operated by the reverse movement of said train of gears to actuate said .lever to move said gear out of operative position, a ratchet mechanism between two gears of the train, a gear on said starting shaft, a rack Wit-h Which said gear engages, said rack being secured to a piston, and a cylinder in which said piston is adapted t-o reciprocate to turn said gear for starting the engine, substantially as set forth.

Witness my hand, thisl 11th day of October, 1912.

A JAMES J. BYRNE. Witnesses: I

FRANCIS R. FARRELL, OLIVER THOMPSON.

Copies of this patent may be obtained for five cents eah, by addressing the Commissioner of Patents,

l Washington, I). C.

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