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Publication numberUS1103736 A
Publication typeGrant
Publication dateJul 14, 1914
Filing dateNov 8, 1912
Priority dateNov 8, 1912
Publication numberUS 1103736 A, US 1103736A, US-A-1103736, US1103736 A, US1103736A
InventorsTheodore A Boor
Original AssigneeTheodore A Boor
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Starter for internal-combustion engines.
US 1103736 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


APPLICATION FILED 210v. a; 1912.

Patented July 14,1914




July 14,1914




APPLICATION FILED HOV. 8, 1912. 1,103,?36, .Patentad July 14, 1914. s SHEETS-SHEET 3.

. 25 I d an F no mm a a; 54 so 29 WWE' Z ZZ'L 4Z&a; a? y 55 36 h THEODORE A. BOOB,


s'rsn'rnn non rnrnmmn-coivmos'rron rmorivns.

Specification of Letters Patent.

' Patented Julylel, 19 14.

Application filed November 8, 1912. Serial 110. 730,171.

1 To all/whom it may concern:

Be it known that I, Tlnnooonn A. Boon, a citizen of the United States, and a resident of Ashville, in the county of Pickaway and State of Ohio, have invented a new and Improved Starter for Internal-Combustion Engines, of which the following is a'full, clear, and exact description.

My invention relates to an improvement in starting devices for internal combustion engines, and the object thereof is to provide a separate motor which can be operated by means of a suitable motive agent, such as compressed air, and which is geared to the starting shaft or the engine in such a way that it can turn the some to set the engine running, and then be operated in its turn by the engine crank shaft as a. pump to store up air in a storage tank connected thereto for further use.

Reference is to be had to the accompanying drawings forming a part of this s coification, in which the same characters 0 referenco indicate the same parts in all the views.

Flgure 1 represents a side elevation of my invention; Fig. 2 is s. longitudinal sections! view of the air motor and transmission gear- Fig.- 3 is a sectional view on the line 3--3 of Fig. 2; Fig. 4% is on end view of the air, motor; Fig. 5'is a top ion. of the transmission gearing, showing t e clutches comprised, in the-same in one position; and

Fig. 6 is a view otthe same parts, showing the clutch mechanism in another position. My invention can be applied to any kind of internal combustion engine 1 and the starting motor 2 is located preferably beside the crank case of this engine and geared to the main shaft by means oi gearing indicated as a whole by the numeral 3;; This 'garin comprises a number or clutches so arrange that the motor can be mode to drive the engine at the start, and efter that the enginmdrives the motor as a ump, to store up the compressed air neede to operate the starting motor, in a suitable tank or reservoir to which the starting motor is connected. This tank or reservoir is not shown onthe drawings, but it isconnected to the motor 2 by means of a pipe 4-, in which is avalve casing 5. This casing contains a valve that is controlled by d lever 6 mountedin suitable osition, such as the dash of an automobi e, when the starter is used on antomobiles; and the valve itself comprises a valve body 7, held to'its seat by means of o. spr ng 8 and openedagainst the force of the spring by a rod 9 operated by e bell-crank lever 10. This bell-crank lever is rigidly mounted upon a spindle 11, upon which the lever 6 is also secured. This levercarriespedals 12 and 13, and when the former is depressed the valve is opened, and when the latter is de ressed the SpringB'is-free' to close the va ve. The airmotor 2 comprises any number of. cylinders and is provided. with a valve chest "14, from which com-T: munication is bad to eaehof the"cyl indcrs--; by means of-valves 15 held in closed pgsiti'on '70, by springs 16. and controlling inlet passages" 17. These valves are operated by rods 18 1 2( of the air motor and each cylinder of the onmotor is providedwith a piston 21cm rods 22. The air onto each' cylinder-in turn, as the valve closin the passage 17 is". i opened, forcing the piston 2ltherilifouts ward to such an extent as. to' uncover the go exhaust passage 23 at the end of its stroke 4 and allow the air. toescape. The motion of the shaft 20 of the hinmotor 2 is communis cated to the crank shaft of the-engineby suitable ear wheels andgclutches, as above stated. .his' transmission mechanism includes a pinion 24 on the outer end of the shaft 20, which drives a gear wheel 25'. mounted on a stud 26 projecting from the framework of the engine 1. Integral within this or wheel 25 isfa. clutch membcr.27 whic engages-with aclutch member 28 car: ried by another wheel 29 having fiangesBO. These wheels 25 and'29 turn loosely. on the spindle or stud 23. v 1 k Themain shaft ofthe engine receives mo,- tion from the pinion 29,:by means gf a veer wheel 31 mountedon the engine can]: si 32, so as to be able to turn freelywith refii spect-to this crank shaft. The engine crenk m, s aft is provided with a clutch member 33 secured thereto, which meshes h with :a clutch member 34 formin clutch 35, the intcrmcshmg teeth" on the and engaged by cams 19 on themain shaft I 1t nected to the crank is aft 20 by ea 5 the hub of the] ear wheel 31, andthis c utch member34 clutch34 and clutch will enable the crank shaft 32 to turn the gear 31, being designed to give this'mode of operation. The shaft 20 on the motor 2 also carries a gear wheel 36 with which the gear 31 comes into mesh when the clutches 34 and 35 are interlocked. The sliding movement necessary to operate the clutch 34 in both directions is efiected by means of a fork 37 carried on the end of a rod 38. This rod ismounted in bearings on theframework of the motor or engine andisj connected by means of a-link 39 to a pin or; bolt at the lower end of the bell-crank, lever 10. I

In operation, when itis desired to start:

the engine, thepedal 12 is depressed, open- 5' ing the valve 7- and allowing air to flow into} the c'ylindersof the air motor. The'samej movement of the lever 6 -withdrawsthe rod? 38, moving the gear 31 and with it the pinion 29, because of the disks or flanges 30, in, sucha direction as to cause the clutches 33} and 34 and 27 and '28 tov come into-engaged;- relation. The pinion 24 now tur'ns the gear; 25, and through the clutches 27 and 28 the pinion 29. This pinion 29 turns the gear 31, which transmits motion through the? clutches 33 and 34 to'the crankshaft of the? engine. After the enginel is running, the,

operator depresses the pedal I3, a1lowing; the spring 8 to close'the valve 7 and move;

, the rod 38 in the opposite direction. Thegearwheels 29 and 31 now move to theleft, referring to Fig. 2, bringing the gear 31 into a mesh 'withthe gear 36, and the clutch 34;;

into mesh with the clutch 3,5. The engine;

shaft 32 now transmits motion to the motorf shaft 20, and the motor 2 operates as-a;

, ti'on, and'that I do not care to be limited to of the passage of air to the reservoir.

. and spirit of my invention.

.- pump, storing up air in the reservoir connccted to the pipei, and thus replenishing the supply of compressed air, so that the enj gins can'bc again started after stopping. During thislatter operation valve 7 opens; under a pressure from the pump to permit I wishto have it understood that the.

above description is illustrative only anddiscloses but one embodiment of my inventhe exact details shown and described, but

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

1. :In a .starterfor. internal combustion engines, an intermcdiately piyoted foot treadle, a spindle on which the foot treadle is secured, a bell-cranlc secured=\upon said spindle, a valve operated by one arm of said bell-crankto supply motive fluid to a motor,

carried thereby, a gear operated by said pinion, a clutch member carried by said gear, a pinion having ,a clutch member adapted tomesh with thefirst named clutch memberya gear meshing with said second named pinion, an enginedriven power shaft, a "clutch for connecting the last named;- gear to the said power shaft, and

means'f'or moving said second named pinion and gear tothrow said clutch and clutch members into and out of operation.

3. A starter for internal combustion engines, comprising a motor, a pinion and a gear mounted upon the shaft thereof, a gear meshing with the pinion and having a clutch member, a second pinion having a clutch member to engage the first clutch member, an engine-driven power shaft, a pair of clutch members carried by'the said power shaft, a gear mounted on the ower.

shaft between said clutch members an having clutch members toengage each of the members on the power shaft, said last named gear meshing with the second named.

pinion, and means for moving said'second named inion and the engine shaft gear to enable t e motor to drive the engine to start the same, and the engine to drive the motor as a'compressor after starting.

4. A starter for internal combustion engines, comprising'a motor, a pinion mounted on the shaft thereof, an'intermediate gear and pinion, the former of which meshes with the shaftpinion, a, clutch'ada'pted to connect said intermediate gear and pin on,

. an engine-driven power shaft, a gear mounted on the said power shaft and in engagement and movable with the intermediate pinion, a geaumounted on the motor shaft and with which the-engine "shaft gear is adapted to mesh when the intermediate gearand pinion are disengaged, and elutchesfor connecting the engine shaft gear with the I engine shaft in relatively opposite direc ti'ons, all for the purpose described. v In testimony whereof I have signed-my name to this specification in the presence of two subscribing witnesses.


Witnesses: WILLS E. Hoovnn, I

Winlmm M. MILLER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4221359 *Dec 8, 1978Sep 9, 1980American Machine & Hydraulics Inc.Foot control for hydraulic valve
US8899222Apr 8, 2010Dec 2, 2014Colorado State University Research FoundationCook stove assembly
U.S. Classification60/629, 91/53, 251/295, 123/179.21, 123/179.31
Cooperative ClassificationF02N7/00