US872527A - Motor-starter. - Google Patents

Description

0.8725521 T' Y RATRNTRD DRT-Rigo?,

A. W; MANZ. v MoToR STARTER.

vAPPLIOATION FILED FEB. 26, 1906.

' that with explosive `citizen of the United the following for explosive engines muren vsraras rarnnr ernten ADOLPl-I W. MANZ, OF CHICAGO, ILLINOIS, ASSIGNOR TO IAUL II. MAINZ, OF CHICAGO,

' ILLINOIS.

MOTOR-STARTER.

T o all whom 'it may concern: i

Be it known that I, .ADOLPH W. MANZ, a

States, residing at Chiof Cook and State of Illicago, in the county nois, have invented certain new anduseful Il Improvements in Motor-Starters,

is a specification, My invention'relates to starting devices U or motors and especially to that type of motor employed for driving vehicles. p

The chief objects of my invention are tok provide a convenient, efficient and economical device by means of which the operator can quickly and safely start the engine without leaving his seat.

lt is well known that the main shaft-of any explosive engine must be given asufficient movement to cause at least one explosion before its action will become automatic and that this movement must be imparted by some power outside of the engine itself. As" ordinarily constructed the mechanism by which this is accomplished, in order to economize space and for other; reasons, is'placed beneath the body of the vehicle or in' some` other equally inconvenient location. This makes it necessary for the operator to alight from the vehicle and it often happens that he must do 'this in a place where the mud or water makes it very disagreeable and considerable ,time may be consumed beforethe desired result is accomplished. The ordinary starting device consists of a detachable crank which can be temporarily applied to turn the engine shaft. haste has been known to leave the operating crank behind only to discover his loss when he again needed it to start his motor. It is also well known tothose skilled in the art of whichr that the time of-i l tion should bear a certain relation to thiol position of the piston with reference to its dead center, such rela-A tion varying according to the speedof thev engine. For this reason the settingA of the sparker has .a direct bearinCr upon the nievement of thepiston and its driven crank; for instance, if the time of ignition is set in ad- -vance when the crank is'approaching dead center and ignition of the charge should take place, a reverse movement of the engine willoccur and. as a result the operator will be in danger of severe injury from the backward jerk of his crank by the engagement ofthe Specification of Letters Patent.

The operator in hismotors it is necessary i Patented Dec. 3, 1907.

Application tiled february 26. 1906. Serial N o. 302322.

dog by the ratchet. For this reason provision must be made' to render it impossible to start the motor when the sparking mechanism is set in the zone of danger.

I accomplish the above objectsin a genl eral way by attaching a' ratchet wheel to the \engine shaft andl operating the same by means of a pawl mounted upon a lever and.

l controlled by a cable passing over suitably arranged pulleys, said cable being furnished witha handle placed conveniently near to the drivers seat. i

The means employed by me is adaptable to the great variety of the motor vehicles in common use. sary to construct the starting device to suit HithertoV it has been neces` the exigencies of each type of motor and i when it forms a part ofthe mechanism its construction must he carried on inconjunction with that of the vehicle itself. In my improved device this is not necessary as the apparatus is constructed with the view of making it possible to apply'itrto vehicles already constructed and of almost any dev-` sign whatever. The ordinary method of starting the engine by the application of a crank is so awkward and inconvenient thatit is customary to keep the engine in motion stops ofthe' vehicle are made. of my improved startin device which is easily operated and rapi in its action, the motor will be more frequently stopped and thus there will be a great saving in fuel, oil, wear etc. In the accompanying drawing part of .this specification 2-Figure elevation of my improved explosive engine starter attached to the Aframe of an automobile, sufficient onl when short By the use forming a y 0f the vehicle being vention thereto; Fig. 2 is a fragmentary view showing 'the' method of removably attaching the ratchet wheel and its relation to` the journal of the operating lever; Fig. 4 is aA side view of the ratchet wheel and the fianged journal of the operating lever.

Referring to the drawing, 1 is the framework of an automobile, 2 'the engine shaft and 3 an operating lever, ournaled in a bearing 4 concentric with'therotating center of the main shaft. In some types of automobilel construction the method of supporting the main shaft is auch as to render it im- 1 is a sideV shown to illustrate the application of my inpossible to attach the lever center in line No surround the shaft, each portion having j flanges 6, 7, the wider ofthe two having holes 8 for screwsv or bolts by Which the Abear-v ing can besecured to the framework. A collar 9 `also made in two part-s to facilitate assembling and fastened. together by bolts 10 has an arm 11 perforated for'bolts 12 means of which the operating lever 3 can be firmly attached thereto. A ratchet wheel 13 made in halves and fastened together by bolts 14 is firmly clamped upon the main by j duce a partial revolution-"of excursion of the operating lever, and' rasping the handle 27 gives 1t an upwarc and backward movement. As the handle begins to move, since the cable 19 is attached at the opposite end to the pawl 16, the latter will be extended until it engages the ratchet Awheel 13. A continuance of the handle movement inthe same direction will then cause the lever 3 to move upon it-s center carrying the ratchet Wheel with y the engine shaft 2, the'momentum of the fly Wheel 5 continuing thel movement sufficiently to cause a action of the The hanit and thus proshaft and rotates with it, being keyed upon ldlethen being released the action of the said shaft by means of feathers 15 which engage splines cut in the surface of the shaft on opposite sides.4 A pawl 16 is pivotally attached to the said operating lever by a bolt 17 and is adapted to engage the notches of said ratchet wheel 13, 'and is normally kept out of engagement thereof by means of a spring 1S. A cable 19 is secured at one end to Uhe pawl'l and is carried around grooved wheels 20, 21, attached to the operating lever, thence around pulleys 22, 23, attached to the framework and then passes through a hole 24 in a foot plate 25 placed at the base of the dash 26, Where it terminates in a handle 27.- When released the said handle rests upon the foot plate 25 and a spring 28 holds the operating levergin retracted position against a stop 29, the adjustment being such that the spring 18 will then hold the pawl 16 out of engagement with the ratchet Wheel 13. Thejnechanisln is so adjusted that when the regulating lever 30 of the sparking device is within the zone of danger, i. e., so advanced that the discharge Will be `likely to cause reversal of the engine and consequent injury to the starting mechanism and possibly to the operator, it will .be in the 4path of movement of the operating.

lever 3 so that when Ythe. handle. 27 is pulled the operating lever will engage withethe said regulating lever 30 and prevent any further movement of said lever 3. When this happens the operator will be reminded to set the lever 30 over far enough to clear' the operating lever and thus the starting mechanism will and the engine can be started by pulling upon the handle 27 without any danger of a premature explosion.

Having thus described the mechanism of my improved starting device for explosive engines I Will briefly indicate the method of using the same. When the motor isat rest and the operator desires to start the engine he first turns the sparking control lever 30 to a' position where it will not interfere with the be freed. from the obstruction spring 2S will retract the parts to their initial position with the handle 27 upon the foot plate 25, the operating lever 3 resting against its stop 29 and the pawl 16 free from engagement with the ratchet teeth. Shoul 011e impulse of the handle be insuflicient to give the required momentum to the fly Wheel, the movement can be repeated as many times as maybe necessary, but since the arrangement is such that the operating lever will describe an arc of about. 90 degrees one pull upon the handle will ordinarily be all that is required.

It is evident that many changes may be made in the precise form of the'parts and the construction ofthe mechanism herein shown without departing from the spirit and scope of my invention, and I therefore do not wishw to be limited to in s et forth, but

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

A starting device for motors, in combination with the motor main shaft, a lever loosely mounted on said shaft, split 'bearings on said shaft embracing said lever, a split ratchet-wheel secured on said shaft adjacent to said lever, pulleys mounted on said lever near its ends, operative means for making traction upon said lever, said operative means consisting of a flexible and a yielding portion, said flexible portion passing over said pulleys and provided'with a handle, a pawl pivoted to the lever and forming a link between the said portions of the operative means for the lever, means for retaining the lever in inoperative position, and means for` preventing the untimely operation of said lever.

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

ADOLPH l W. MANZ. I

the exact construction herey Witnesses: l

PAUL H. MANz, C. F. BAssEr'r.

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