US1270160A - Engine-starter. - Google Patents

Description

R. L. HOGG. ENGINE STARTER APPLICATION FILED JUNE 5. l9l7.

Patented June 18, 1918.

2 SHEETS-SHEET l.

R. L. HOGG.

ENGINE STARTER.

APPLICATION FILED JUNE 5.19".

1,270,160. PatentedJune18,1918.

2 SHEETS-SHEET 2- ROBERT L. HOGG, OF CHARLESTON, SOUTH CAROLINA.

EN GIN Iii-STARTER.

Specification of Letters latent.

Patented June 18, 1918.

Application filed June 5, 1917. Serial No. 172,997.

To all whomrit may concern:

Be it known that I, ROBERT L. Hooe, a

i citizen, of the United States, residing at ternal combustion engines and more Charleston, in the county of Charleston and State of South Carolina, have invented certain new and useful, Improvements in Engine-Starters; and I do herebyideclare the following to be a full, clear, and exact description of the inventlon, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to starters for inticularly to starters especially adapted for use on internal combustion engines for automobiles by reason of its frequent necessity in. the use of automobiles for the performance of the starting operation.

The primary object of the invention is the provision of spring means for turnin over the internal combustion engine a su cient number of times to insure the firing of the .-.-initial, charge of mixture taken into the cylinders of the engine, so that the automatic startingof the engine is insured.

,Another object of the invention is the provision of means for automatically conauneoting the spring means to the engine,

after the same has fully started, so that the springmeans will be automatically reset for its next operation.

A still further object of the invention is gthe provision of means controlled by the Ninconstruction, durable and reliable in operation and can be manufactured and placed upon the market at a reasonable cost.

WVith these and other objects in view, the

invention consists in the novel construction,

arrangement and formation of parts, as will be hereinafter specificallydescribed, claimed par and illustrated in the accompanying drawings, forming a part thereof, in which i Figure 1 is a horizontal longitudinal section taken through the improved starting device,

.Fig. 2 is a vertical longitudinal section through the improved device, and

. Fig. 3 is a detail section taken on the line 3-3. of Fig. 2.

Referring to the drawings in detail wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 1 generally indicates the improvedv engine starter which ineludes the cylindrical casing 2 having the driving shaft 3 rotatably mounted therein. The cylindrical casing 2 is formed of two substantiallysemi-cylindrical sections 4 and 5 each of which include curved end walls, and semi-cylindrical side walls. The meet ing edges of the sections 4 and 5 are provided with projecting lugs 6 which are apertured to receive suitable fastening elements which are adapted to hold the sections together.

The driving shaft 3 is journaled in suitable bearings 7 in one end of the casing and in a bracket 8 which consists of a quadrant shaped plate extendin up from the bottom of the casing at one sit le of the vertical axis of the casing to the horizontal axis of the casing and has a detachable upper bearing plate 9 secured thereto. The inner end of the driving shaft 3 is rotatably received for independent rotation in the recess 10 formed in the driven shaft 11, which is journaled in the opposite end of the casing 2 in suitable bearings 12. The rotative force to drive the driving shaft 3 originates at the coil spring 13, which has one end secured to the shaft 3 and the opposite end to the casing 2 as at 14. A pawl 15 is pivotally mounted intermediate its ends to the bracket 8 by means of a pivot pin 16 and engages the ratchet wheel 17 which is secured to the shaft 10 and prevents the 5 ring from unwinding and rotating the drlving shaft 3. A suitable coil spring 18 is secured to the free end of the pawl 15 and to the bracket 8 and normally holds the pawl in engagement with the ratchet wheel 17.

The shaft 3 has a sliding clutch section 19 keyed thereto which is adapted to move forward :into locking engagement with'the rigid clutch section 20 keyed to the inner end of the driven shaft 11. g I

An arm 21 having a forked shaped end 22 is secured to the rotatable collar 23 fitted in the groove 24 in the sliding clutchsection 19. an d, has its lower end keyed to the stub sl'iaft24," which is positioned adjacent the bottom of the casing at right angles to the arm 21 for rocking movement and ezgtends out :of the casing 2. A crank '25 {is secured to the free end 0f the istub shaft 24 for rocking the r same iand a rod 26 extends from the" free endof the same t'o the foot board of an automobile (not shown)v and is con-- nected Ito 'a suitable spring actuated pedal (not shown) so that "when {the foot pedal "is depressed the crank will be mocked which will slide the clutch section 19 into locking engagement with the clutch section 20 for 25 the locking shafts S and '11 forsynchronous movement. An 'arm 27 is pivotally'fsecuredto the arm 21 for movement therewith by means of a pivot pin 28 which extends through anslot'29 formed in the -arm 21. 30*Thea'r'm 27' has its outer end enlarged *to form a'slanting surface which is adaptedto 1 engage the :free end; of i the pawl l5isothat when the jclutc'hsection 19 is movediinto engagement withthe clutch section 20 b the' a'rm21" the same'iwill slide theiarm' 2 toward the clutch so th'at-ithe enlarged end 30 0f the arm 27 will engage the "free end oft-he pawl 15 and throw the same out of engagement with the ratchet wheel 17,:fso

' that the spring 13 willibe 'free'ito irotateithe shaft-3. The arm 27'is 'slidablyisupported in the casing by means of fthe Ipl'ate 1'8 and a similar plate {30 which is secured to the bottom'porti'on' of the casing in spaced role-- tion to the plate'8.

-A gear wheel 81 is rotatabl -mounted upon 'the driven shaft 11 for independent movement and ineshes" with a similar gear 32 keyed to the "counterfs'haft "33whioh' is 1 jou'rnaled in suitable bracket 34 and in i the plate 8 andis' held against movement by the upper bearing section 9 of the zplate;

Aflgear wheel '35 is "keyed 'to the opposite end'of the counter 'shaft 33 and meshes "with a gear 36l-keye'd to *thejstub "shaft 37 journaled in the pjlate'8, which in turnjmeshes witli' 'the gear 38 keyed to the driving shaft 3 and wlien the counter shaftfis rotating in "a "counter clockwise "direction, the 1 shaft '3 will be driven'=in acounterclockwise directi'on for reWindin gthe' spring13;'s0that it caniberes'et Ton-ems the-eounter-shaft 33 =a' sliding "nectedto a 'leaf'spring 43 which is bolted as fat 44 to a lug 45 connected to one side of thecasing 2 and the leaf spring 43 norlma lly tends to hold the clutch ,section139 out of engagement with the rigid "clutch section 40. The inner end of the sliding rod 27 engages the collar 41 when the same is thrown rearward by an arm 21, which operates the sliding clutch sect-ion 19,-so that when the clutch 'section :19 isthrow n into lo'cking engagement with the rigid clutch section, "the-sliding clutch-section 39 carried by the drivenshaft 1 1' is positivel prevented ffromi going into engagement wit the :rigi'd clutch: section 40 keyed to the'gge'ar 5 31. -Whenthe sliding c'lutch section 40*:is actuated, the collar 41 willl engage the inner end of tl1e slidingrod 27 and push thevsame' forwardly and disengaging :the' clutch :s'ec- I tions 19 :andr120. 'flhe foot pedal (not shown) forxactuating the sliding clutch sec tion 119115" spring pressed :and when the foot 1 of the operator is removed from the pedal, the s'sam'e automaticallyreturns to its 'normal position and-also tends'lt'oautomatically 5 disengage the clutch sections '19 and 20.

Ai'bell rcrank '46-;is pivotally secured b means-.ofra pivotjpin 47 which passesithroug the tangle thereo'f into a 1pro e'ctin'g lug'48 carried by thev side Fof the casing 2, and "has a foot 49 pivotally -secured".thereto which bearsl against the outersurfaceofthe coil spring 113. Theopp'osite end of thecrank 46 f'has a zpivot'ed link :50 whieh" lSkCOIHlBtGd. to ia'ic'oil spring 51, "which: is =in turnc'on- 1.105 nected-ito an arm 52 carried by rthe collar 41 which :is: rotatably fca'rriedi iby the :sliding clutch section 39 and it will doe-seen that when the spring? 13 is unwound andithesame has expanded, the end o'ff'the bell "crank 46 carryingthe foot 49 willbe :presseddowm ward which "will :for'ce :theother leg of 'the bell crank inward and overcome the itensi'on of the leaf spring and throw the clutch sec-n tion 19 out of engagement with rthe zclutch 20 and the clutch-"39'into engagementwith the clutch '40Icarried byithe gear .31.

A -suitable spur gear 54 is carried by the free. end of the' driven-shaft -11 whi'ch rproj ects out of the casing 2 1 and' this gear :is i adapted to be connected with the crank shaft of i-the engine tnotshown :bygears or a sprocket and ch'ain "(n*ot-' shown) "sothat when i the driven *s'haft is being rotated the same" will, through the :medium of thefgears' I (not show-n turn the' engine-over;

A suitable crank 55 is detachably secured to the front end of the driving shaft 3, which projects out of the front of the easing, so that the shaft can be rotated to initially wind up the spring 13. After the spring 13 has been once wound up, the crank can be taken off of the shaft 3, as then the operation of the improved starter is entirely automatic, or the crank can be carried around for emergency.

In operation of the improved device, when itis desired to start the engine, the foot pedal which is not shown, is pressed downward which rocks the stub shaft 24 which carries the arm 21 and throws the movable clutch section 19 in locked engagement with the clutch section 20 and at the same time, the sliding arm 27 is moved' forward which releases the pawl 15 from engaging the ratchet wheel 17, through the medium of the enlarged end 30' thereof which will allow the spring 13 to rotate the driving shaft 3 which has been locked through the medium of the sliding clutch sections 19 and 20 to the driven shaft 11, which will in turn, turn over the internal combustion engine (not shown) and startthe same. After the engine has been started by means of the spring 13, the same will have become unwound and will therefore be enlarged and the same will press downward 0n the foot 49 carried by the bell crank 46 which will draw the other end of the arm toward the coil spring 13 and overcome the tension of the leaf spring 43 and draw the sliding clutch section 39 carried by the driven shaft 11 into engagement with the rigid clutch section 40 carried by the gear 31 and will rotate the gear 31 which will in turn r0 tate the counter-shaft 33 and the same will through the medium of the gears 35, 36 and 38 drive the driving shaft 3 in a direction opposite to which the shaft is first rotated and rewind the sprin 13, so that the starter will be automatica ly reset. While the clutch sections 39 and 40 are becoming engaged the clutch sections 19 and 20 are antomatically being disengaged through the medium of the collar 41 engaging the sliding arm 27.

In practice, I have found that the form of m invention, illustrated in the accompanylng drawings and referred to in the above description, as the preferred embodiment, is the most eflicient and practical; yet realizing the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction,

proportion and arrangement of parts, may A be resorted to, when required, without sacrificing any of the advantages of my invention, as set forth.

What is claimed is 1* 1. An engine starter comprising a driving shaft, a driven shaft, means connecting the driven shaft with the crank shaft of an internal combustion engine, a sliding clutch section carried by the driving shaft, a rigid clutch section carried by the driven shaft, spring means associated with the driving shaft for rotating the same, a ratchet wheel on said shaft, a pawl engaging said ratchet to prevent the rotation of the shaft in one direction, an arm connected to said sliding clutch for moving the same into the rigid clutch section carried by the driven shaft, and a slidin arm pivotally connected to the arm carriediy the sliding clutch for engaging said paw to disengage the same from the ratchet wheel, whereby upon movement of said arm carried by the sliding clutch, the driving and driven shafts will be connected for movement together and the pawl will be released from the driving shaft, so that the sprin can rotate the same.

2. engine starter comprising a driving shaft,a driven shaft, means operatively connecting the driven shaft with the crank shaft of an internal combustion engine, spring means for rotating said driving shaft, means for preventing the rotation of the driving shaft in one direction, means for lockin the driving and driven shafts together anc for releasing said locking means engaging the driving shaft, a counter-shaft extending parallel to and in spaced relation to the driving and driven shafts, means operatively connecting the counter-shaft with the driving shaft, a gear rotatably mounted upon the drlven shaft for independent movement, means operatively connecting said gear with the counter-shaft, a sliding clutch section keyed to said driven shaft, a rigid clutch section carried by said gear rotatably mounted on the driven shaft, a leaf spring normally holding said sliding clutch section out of engagement with the rigid clutch section, a be 1 crank pivotally secured to the bottom of the casing, a presser foot pivotally carried by one end of the bell crank and engaging the outer side of the coil spring, and means connecting the free end of the bell crank with the leaf spring, so that when the spring expands caused by the unwinding thereof, said bell crank will overcome the tension of the leaf spring and interlock the sliding clutch section and rigid clutch section carried by the rotatable gear together, as and for the purpose specified.

3. An engine starter comprising a driving shaft, a driven shaft, means connecting the driven shaft with the crank shaft of an internal combustion engine, spring means connected to the driving shaft for rotating the same, means engaging said driving shaft driven shafts togetherfor synchronous.

movement,, a; counter-shaft extendingpanel:-

lel with. said: driving and driven: shafts; means connecting the counter-shaft with: they J driving shaft, a; gear notatablyw mounted i upon the driven; shaft and. operativelyrcone nested-With, the counter-shaft, andgmeansfior 10 engaging the periphery of the spring for 1 Copies. 01 this .patent;'may. be obtained: ion m, cents: each hyz addressing; the; commissioner; otc Piatents;

immreo ldcking-r and; unlocking the rotatable. gear 611 the driven shaft" with seid flriven shaft, as

' in presence oftwoawitnesses.

,7 ROBERT L. HOGG'.

Witnesses:

PRICE, JOHN I. COSGROVE.

WashinigtongDmG

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