US1144410A

US1144410A - Self-starter for explosive-egines.

Info

Publication number: US1144410A
Application number: US82321214A
Authority: US
Inventors: Amos A Grose
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-03-07
Filing date: 1914-03-07
Publication date: 1915-06-29
Anticipated expiration: 1932-06-29

Description

A. A. GROSE.

SELF STARTER FOR EXPLOSIVE ENGINES.

APPLICAHON FILED MAR. 7, 1914.

l, 144,1 0., Patented June 29, 1915.

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AMOS A. GROSE, 0F MADISON TOWNSHIP, ST. JOSEPH COUNTY, INDIANA.

SELF-STARTER FOR EXPLOSIVE-ENGINES.

Specification of Letters Patent.

Patented June 29, 1915.

To all whomit may concern:

Be it known that I, Amos A. Gnosn, a citizen of the United States, residing in Madison township. in the county of St. rloscph and State of Indiana. have invented certain new and useful Improvements in Self-Star ers for EXplosi've'llngines, of which the following is a. specification.

The invention relates to a self-startenfor engines of the explosive type. being particularly directed to a mechanical means adapted in its operative actuation to impart the necessary starting movement to the engine, the means being in turn reset for successive operative actuation under the normal engine movement. I

The main object of. the presentinvention is the provision of a mechanical starter involving an actuating spring and cooperating elements, with manual means for the control of the latter, whereby the spring may be placed within the influence of the engine for winding to the. proper tension and locked in such wound condition, the manual control providing for the coupling of the spring directly to the engine shaft to utilize its tension as a means for the initial starting of the engine.

The invention in the preferred form of details will be described in the following specification. reference being had particularly to the accompanying drawings, in which Figure 1 is a sectional view partly in elevation illustrating the selfstarter. Fig. 2 is a section on line 22 of Fig. 1. Fig. 3 is a section on line 33 of Fig. 1. Fig. t is a face view of the gear clutch. Fig. 5 is a broken face view of the winding disk. I

The improved starter is shown as primarily adapted for use with automobile engines,

though it will be understood that its use is contemplated with any type of explosive en- ,gine.

In detail structure. in the preferred embodiment shown in the drawings, the improved starter comprises a drum shaped case 1 fixedly secured. in any appropriate manner. to the front chassis beam of an automobile. or other suitable support.

The forward face of the case is formed with a sleeve extension 2, within which is fixed a bearing member 3Qand mounted for a limited sliding movement in said hearing. member is what. I term a crank stem 4. The

crank stem extends through and beyond the case, its forward end being formed for the removable reception of an ordinary crank handle llithin the case the crank stem is reduced in diameter as at (i. and its rear terminal further reduced to provide a guiding projection 7, a disk 8 being arranged upon the stem at the forward terminal of the guiding portion. The crank shaft 51 of the engine, mounted in the usual mann a. is arranged to aline with the crank stennand is formed in its forward end with a recess 10 to receive theguiding projection 7 of the crank stem.

A winding disk 11 is mounted for cooperation with the case, said disk having'a forwardly projecting hub 12 rotatahly mounted upon the crank stem within the case. The. disk 11 is designed to close the open end of the case, and its peripheral edge is formed with an inclined clutch surface 13, adapted when the disk is forced into contact with the case to coiiperate with a similar edge 1% on the case. whereby to hold the disk against independent movement. The jeripheral surfaceof the hub near its forward edge is formed with a series of teeth 15. and a sleeve 16 is rotatably mounted upon the hub and provided with dogs 17 operating under the influence of gravity to engage the teeth. as clearly shown in Fig. 3.

An operating spring 18 is arranged with in the'case. being coiled about the sleeve 16. one end of the spring being secured to the sleeve as at 19(and the opposite end being formed with a hook terminal 90 to engage any one of a series of notches 21 formed in the inner surface of the peripheral wall of the case. The connection of the outer end of the spring. is important in the improvement, as it provides an automatic adjuster to prevent over-w nding of the spring. as in the event of such over-winding. the contraction of the spring due thereto will withdraw the hooked end 90 from the particular notch 21 and permit the spring to move independently until the winding mechanism isthrown out of gear.

Secured upon the forward terminal of the c ank shaft 9 is a clutch member 22. and slida'hlv mounted upon the crank stem immediately in ad ance of the disk 8 is what I term a vgear clutch The gear clutch comprises a sleeve-like member formed on its rear face with a clutch surface 24 adapted for coiiperation with the clutch face of the clutch 22, the gear clutch being formed within the clutch face with a recess 25 of a size to receive the disk 8. I

The rear face of the winding disk is formed with a depression 29 of a size to slidably receive the gear clutch, and the forward wall or bottom of formed with a series of radial depressions 30, as clearly shown in face of the gear clutch is provided'with a series of radial teeth 31, of a size and so positioned as to cooperate with the depressions 30, and the peripheral edge of the gear clutch is formed with a series of gear teeth 31'. A spring 32 encircles the crank stem between the winding disk and gear clutch, said spring seating within a recess 33 in the forward face of the gear clutch and serving to normally operate said gear clutch to force the teeth 31 from cooperation with the depression 30.

The rear face of the winding disk is provided with a gear 34 cooperating respectively with the teeth 31 of the gear clutch and with an internal gear rack 35 formed on the winding disk, as clearly shown in Fig. 2.

The starter is controlled by the driver through the medium of a hand lever 36 pivotally supported at 37 at a conveniently accessible point, the upper end of the lever being arranged for cooperation with a notch segment 38 and having the usual locking dog 39, the segment being formed to permit the locking of the lever in one of three positions. The lower end of the lever is connected through the medium of a rod 40 with an angle lever 41 pivotally supported upon a I bracket 42 secured to the bearing 3, the upper end of the lever 41 loosely encircling the crank stem in advance of a collar 43 secured thereon, a spring 44 bearing between the collar 43 and the bearing 3 to normally project the crank stem in opposition to the influence of the lever 41.

In the use of the starter, the initial or first operation of the engine is imparted'in the usual manner through operation of the crank 5. During this operation the lever 36 is set in the position shown in full lines in Fig. 1, in which the clutch faces of the gear clutch and clutch member 22 are in active cooperation. Under the running of the engine, the crank shaft 9 through the cooperation of the gear clutch and clutch member 22, the gear teeth 31, the gear 34, and the gear rack 35, the winding disk is rotated in a direction to wind the spring 18. When the latter has been wound, the lever is shifted forward to the position shown in dotted lines. this movement forcing the winding disk toward the case so as to cause effective cooperation of the faces 13 and 14. and lock the disk against further rotation. or in other words,- holds the spring locked in a wound relation. \Vhen it is desired to this depression is Fig. 5. The forward the case and under locking said disk and clutch for start the engine through the use starter, the lever is shifted to the remaining position, shifting the winding disk toward the gear clutch and forcing the latter into cooperation with the clutch member 22. This relieves the gear clutch'from its neutral position, releases the winding disk from its locked relation to the case, and causes the teeth 31 of the gear clutch to be engaged by the depressions 30 of the winding disk. This permits the tension of the spring to be directly utilized for turning the crank shaft 9, through the connection of the winding shaft disk with the gear clutch and the connection of the latter with the clutch member 22.

The improved starter provides a mechanical device which may be readily controlled to be set by the engine, held in set or locked position during the operation of the engine, and released for actuating or turning the engine when desired to start the same. The

construction is important in the details wherein provision is made against accidental breaking of the spring through overwinding, and in the certainty of the manual control of the operation of the parts.

What is claimed is:-

1. An engine self-starter including a crank stem, and automatic winding mechanism intermediate said stem and the engine shaft. said mechanism including a case formed with a series of peripheral notches, and a spring having its outer terminal formed with a hooked end to cooperate with either of said notches, whereby under undue winding of the spring the hooked end will automatically disengage from the particular notch and reengage another notch.

52. An engine starter including a crank stem, a case in which said stem is rotatably mounted, means for moving the stem l0ngitudinally, a winding disk rotatably mounted on the stem, a spring arranged within the control of the winding disk. said disk being movable with relation to the case, and a gear clutch mounted on the stem beyond the disk, said gear clutch being formed with means for inde pendent cooperation with the disk and adapted respectively to arrange the clutch and disk for similar or reverse relative rotations.

3. An engine starter including a crank stem, a case in which the stem is rotatably mounted, manual means for shifting the stem, a winding disk rotatably mounted on the stem, a sprin within the case and under the control of the winding disk. :1 gear clutch mounted on the stem and adapted for clutching cooperation with the engine shaft. gear connections between the gear clutch and winding disk. and means for directly similar movement of the mechanism including a fixed case,

4. Anfengine starter including a crank stem, and automatic mechanism intermediate said stem and engine shaft,'said mechanism including a spring, a winding disk controlling the same, means for shifting the disk bodily, and adjustable member mounted on the crank stem for connecting the disk thereto, to selectively compel either a direct or relatively reverse movement of the disk with respect to the engine shaft, and means for locking the disk against movement in one position of the disk. 7

5. An engine starter including a crank stem, and automatic mechanism intermediate said stem and the engine shaft, said a spring arranged therein, a winding disk controlling said spring, means for shifting the disk bodily with respect to the case, and cooper- &

ating locking faces formed on the disk and case to frictionally lock the disk against movement in one position of the disk.

6. An engine starter including a clutch for connection with the engine shaft, a spring, a winding member controlling the spring, and manually controlled means for establishing selective connections between the clutch, the winding member and the engine shaft, whereby to compel either a di rect, a relatively reverse movement of, or a locking of the winding member against movement.

In testimony whereof I affix my signature in presence of two witnesses.

AMOS A. GROSE.

Witnesses:

L. W. Coon, GEoRGE'J. OL'rsoH.