US1056600A - Engine-starter. - Google Patents

Description

0. JgsPoHRER.y ENGINE STARTER.

APPLICATION FILED MAR. 19, 1912.

Patented Mar. 18, 1913.

whisk W12? e prmiting z of hhs samuel Reference to be had ing drawings, forming): u

time main@ ware enfra@ may Vizi usc.

' ing bloclrl A26 tzzxrnyfing a transversely-disposed' pin 27 extending beyond opposite vsides of the block and into the alined slots in the opposite sides of said cylinder.

'It will be seen by the above-outlined construction, that arotation of the spurv Wheel 21 or the actuation of the shaft 22 by a hand-wheel, Will rotate the cylinder 24 and should the block 26 vbe held from rotation,

l' io sueha movement would advance s aid block. This block 26 is'held in frictional engagement with the casing 10 by means of a friction ring 28 (see Fig. 3), which friction ring is held to the casing 10 by means of a screw 29. This friction ring being split at 30 and sprung out of its normal ,circurrn ference will have a tendency to grip the slid-l ing block 26, and, as shown 1n Fig.v 3, av

bearing ring 31' is disposed between the friction ring and-the forwardlyfprojecting portion Aof the sliding block 26. A sliding key-Sghennects this bearing ring with the sliding'fblock 26.

Threaded into the outer end of theslid' ing. block 26 and in atrial alinement with the spur wheel 2 1 and shaft 22, is a stub shaft 33 land a clutch member 34, thecoacting portion 35 of which clutch-is connected to the `engine shaft 36. The teeth on the clutch are so arranged that when the device is turned through `the actuation of the engine itself, the two parts of the clutch. are disconnected, the incline of the teeth forcing on the actuation ofthe spur Wheel 21 and its the clutch member 34 and its attached sliding block 26 back into the cylinder 24, but- .attached parts, the sliding block 26 is forced forward' bringing the clutch members into .reprint rang ent. of a valve controlled by the o engagement. As is common with devices of this character, the actuating iuid is admitted through the inlet 8,to act on the head 11,-

outlet 39 is controlled bythe valve 40, the

"i a groove 42 cut in the upper siA e ofthe pis-'- ton stem end of' the stem 41' of which is )sitioned` in f This valve is maintained in 'j' by means of aV compression caring ther-sonav While this arsition 'the actuating `piston' stem is is- 'closed rssmyjapplicatipn, Serial BT05635930 file' Junel 11,1911, the advantage of this hammam-11a in ai@ fait that the-groeve nal position to be actuated stroke, and for this purpose there is mountend engaging the bottom of 42 can be easily milled in the stern and elimi-l nates/the separate track arrangement heretofore-'disposed ou top of the piston stein, thereby forming a piston stem of one piece.

In order to form a combined inuiler and exhaust', the head 9 and the casiuglO may beinade integral and have a projecting band 44 telescoping und in threaded engage` ment i'vlth one end of the cylinder (i. A series of outlet apertures 45 are extended through the cylinder 6 within the band 44 and are 'so positioned relative to the adjacent end of the cylinder that the actuating fluid ivhich has passed through the inlet 8 .to act on the back of the piston head 11, also acts through the. by-pass formed by the'ap-v ertures 45, passageways 46 and apertures 47, through the opening 12 into the casing 10, and through the opening 13 to the outside atmosphere. In this way, it will be seen that when the piston head 11 has reached the v.position between the apertures 45 and 4i', the actuating fluid in the cylinder fwill pass .throu h the casing 10, which acts as a mufiier, be ore it is passed to `the outside-atmosphere. Atthe same time, the valve stem 41 having reached the depressed portion of the groove 42V adjacent the piston head, permits the actuation of the spring '43 to strop the passage of the actuating fluid through lthe outlet 39'and inlet 8. 'This balancing ot Huid pressure on. opposite sides' of the piston head 11,' ivilhof course, actasV a cushion to the piston, but as a further precaution, a circular 'buiiino' ring'48 may be vcarriedv b the head 9 pro]ecting into the cylinder 6 an disposed about the'opening 12.

i As ,is usual with devices of this character, the 'actuation ofi the -stem .14 Winds a spring Whieh'returnsthe piston toifits origion the next edl upon the shaft'22, a. gear Wheel 49, which gear Wheel is permanently vin meshv'with 4the teeth ,of the rack 15 and has attached thereto oneend of a coil spring 50, the" opposite outer end o which ig suitably attached by.' means of. a pin 51, with some por-- tio-n of the casing 10.v By this construction, it vwill he seen that the actuation of the stern 14 places the spring 50 under tension, so

that When'the rack is free to move baclr'to its original positionadjacent the inlet 8, the l spring will operateto so move it.

Having thus described my' invention, I claim as new and desire to secure by Letters Patent:

i. In `an engine 'starter,.a gear Wheel having a cylinder projecting from one side thereof, said cylinder having elongated diagonally-disposed apertures. in op osite sides, a block slidably mounted in sai cylinder, a clutch member carried by said block,y

saidblock having a pin extending `from `op` pcsite sides thereof and disposed 1n saidapwheel will advance said clutch member.

vhlOCk slidahly mounted in said cylinder, a

ting the passage of Huid from the rear of said piston'to the opposite face When the 15 latter has reached the limit of its actuating stroke, said by-pass leading into said casing, said casing accingas a ninler.

ulutch melnbei vcarried by Said block, means In testimony whereof have signed my for advancing said block on the rotation of lt naine to this specification in the presence of 20 said cylinder, and a frctionband engaging two suhsmibing witnesses. y said block to yetard the rotationoi: the same. f GREGOhY JOHN SPOHRER. Y ln an engnie starter, a cylinder, a gear Casing forming one. head thereof, a piston l mounted inA said cylinder and extending l l thrnugh said casing, and a bypass permitertulcs, and means frictionally holding said block whereby the rotation of said gear In an en ine staiter a 0 lindei a Witnesses:

Homin l. BLAIR, J. A. HILLIARD.

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