US883461A - Explosive-engine starter. - Google Patents

Description

No. 888,461. 'PATE'NTED MAR. 31; 1908.

0. 0. ILG.

" BXPLOSIVE ENGINE STARTER.

APPLICATION FILED 1411.15. 1907.

. ranged mechanism whereby flywheel of the engine may e ess'ary.

no obstacle is raised -by the ratchet or UNITED PATENT OFFICE CARL c. ILG, OF NEW "roan, N. Y., ASSIGNOR, BY DIRECT AND'MESNE ASSIGNMENTS, or ONE;

THIRD TO NATHAN BLLICOSEL AND ONE-THIRD To RICHARD FRANKENBUSH, OF NEW YORK, N. I I

York, have invented certain new and useful Improvements in Explosive Engine-Starter's, v .of

which the following is a specification. My invention relates to explosive: engine starters, and has for its Object the production I of .certain particularly constructed and ar,

' the shaft and set in-rota'tion by means of a lever situated near the. seat, of the operator, who may conveniently reach and actuate the lever without leaving hisseat. B the use of my invention the crank usually ound at resent upon the front or side" of motor ve iclesis rendered unnec- M invention belongs more particularly 7 in t at class of starting devices examples of which include ratchet and pawl elements of various forms, so disposed that when the explosions begin and. the engine has started, the ratchet and pawl cease to engage. For example, if, as in my. invention,-the'pawls be carried by the shaft and theratchet is operatedby, thelever, upon the startingofthe engine the shaft rotates faster than the hand- 30.

moved ratchet and the: awls are'drawn' free from and past the rate et teeth, and, thus,

paw-ls to the increasing speed of the shaft. i

It is with the particular construction of the ratchet. and pawl devices and their disposition with. respect to the gearing employed that my invention is directly con:- cerned, and I accomplish the objects ex plained above by fashioning and associating parts as illustrated inthe accompanying drawings, of which p y Figure 1 represents a side view of a'por tion of a motor carriage showing my inven tion applied thereto. Fig. 2is a plan view of the operating shaft, the engine shaft, and gearing. This view, and those following, are upon an increased scale of drawing to more clearly exhibit the various parts of my invention. and their arrangement which it is desired to describe. Fig. 3 is an end view of the engine shaft, and shows the form of the pawlreceiving and pawlretaining cavities, and the manner of stopping or plugging those cavities to keep the pawls in place. Fig.- 4

if Specification of Letters Patent; Application filed March 15, 1907. serial No. 362,492.

convenient reach gear M passes the constructed with a remaining by continue that shaft ExPLosrvE-E'nGm STARTER.

Fig. '5 is a r'ear view of the ratchet. gear with is a rear view of the ratchet gear alone, and

' Patented Marmanmoathe shaft-shown in cross-section, and the '7 pawls in placein the cavities formedto receive them.

' Like letters of reference are used to refei" .to the same parts throughout the specifica tion and dr-awlngs.

The letter A designates one side of the frame of any automobile propelled by an explosive engine.

is a lever C. The lower. end" of the ever -is secured to a shaft D sup beneath the fra1ne A iii t e bearings E. At a suitablepoint the shaft D isprovided with an arm F, and that arm is dpivotally connected with a rod G. .Thero G is arranged horizontally beneath the frame and extends towards the front of the machinewhere itis pivotally' connected with an arm H. The

arm H is s'ecuredto and operates the short transverse shaft J, as also shown in Fig. 2. Shaft-J is supported .in neath the frameA, and

with a fellow miter shaft N of theengine 0.

Near the seat B and within of the hand of the 0 erator' orted transversely.

the "bearings .K beits inner end bears :the miter gear The-miter gear L meshes gear M, and through" Thefront end, that is to say, the end towards the left in'the drawingsof the en ine shaft is marked? and it is detachable.

tion constitutes the .journal, by which'the extremity' of'theengineshaft is supported in the bearings Q, as illustrated in Fig. 1. The ortion of the detachable. shaftend Pwhic is referred to by the letter R is enlarged as illustrated, and it is constructed .with'a central, cylindrical, threaded cavity 'tis portion of. the same size of shaft N of the eng1ne,'and that normal porextremity may be adequately supported'in the bearings Q as explained. e

A portion of the engine shaft N at its said threaded end a, is'slotted or recessed longi- 'tudinally. The recesses thus formed, and as shown in Figs. 3 and 5, at their inner parts or bottom portions are cylindrical cavities s, and from those'c 'lindrical cavities straight, flat walls .9 extend diver e'ntl to the periphery or surface of the shaft. cylindrical cavity Sis to' receiveand removhe office of the sol vigorous ably retain the cylindrical end of the pawls 'l, and it will be here noted as illustrated in Fig. 5 that the wedge-form portion of each pawl, meaning that portion'other than the cylindrical end 25 of each pawl, while corresponding generally in form to the V-shaped art of the recesses in the shaft, is not so arge, thus permitting the pawls to turn inwardly u on their cylindrical ends, when in lace as s own in Fig. 5, and free themselves rom the ratchet teeth'U formed interiorly in the hub m of gear M, through which, as previously explained the engine shaft N passes It will be understood from the foregoing and the drawings that the recesses in the engine shaft extend from the end of the shaft, and they are equal in length to that of the threaded end a of the shaft and the thickness of gear M and its-hub. The reason for recessing the shaft to its end is that the pawls must be {introduced the cylindrical portions of therecesses and of the pawls may appropriately engage each other. The pawls are as ordinarily constructed only as long as the thickness of gear M and its hub, that thickness being usually made greater than customary, to give extra strength to the pawl and ratchet elements, having in view the somewhat severe service expected of them. The central opening through the gear M and its hub in which are formed the ratchet teeth, are, therefore, equal in length to the pawls. The construc-. tion just described leaves the recesses in the threaded end 7L of the engine shaft empty, and as the pawls were slippedin that way they would or might become dis laced in the same direction. To prevent tliis displacement, the cylindrical gprtions of the recesses are stopped by plugs as shown in Figs. 2 and 3. Those plugs are equal in length to the portion of the recesses not occupied by the pawls, and when the shaft-end P is screwed into place the plugs, as well as the pawls, are securely locked in.

To operate my invention the lever C is worked back and forth by the hand of the rider, and the meshing miter gears are turned correspondingly. By natural gravitation.

one or the other of the pawlswill be brought into such a position as to be engaged by the revolving ratchet-teeth of the-gear M, and the engine shaft will be turned. As the parts are very strong, a considerable impulse may be given the engine shaft and the y wheel W Ordinarily, but one or two movements of the lever, which, by reason of theleverage introduced does not demand excessive muscular exertion, is sufficient to throw the flywheel into revolution igniting the charge and starting the engine.

Havin now described my invention and explaine the mode'of its operation, what I- claim is.- I

1. In an explosive engine starter, the comsidewise in order that' bination with an engine, of a shaft connected with the engine and by which the engine may be actuated, a wheel fitting said shaft mo.v ably, the said wheel having internal ratchet teeth, the said shaft having recesses extending lengthwise from one end, the said wheel being placed on the shaft over the said recesses, pawls constructed to be inserted from the end of the shaft into said recesses after the wheel is in place and arrange'dto engage the ratchet teeth of the wheel, means'for retaining the pawls against longitudinal displacement, and means for operating the wheel from a distance.

2. In an explosive engine starter, the combination with an engine, of a shaft connected with the en ine and by which the engine may be actuated, a wheel fitting said shaft movably, the said wheel having internal ratchet teeth, the said shaft having recesses extending-lengthwise from one end, the said wheel being placed on the shaft over the said recesses, awls constructed to .beinserted from the en of'the shaftinto said recesses after the ratchet teeth of the wheel, the sai recesses having cavities and the said pawls having correspondingly shaped portions constructed to engage the sald cavities whereby the pawls are movably retained in the cavities against lateral displacement, means for. retaining-the pawls against wheel from a distance.

3; In an explosive engine starter, the combination with an engine, of a shaft/connected with the engine and by which the engine may be actuated, a wheel fitting said shaft-movably, the said wheel having internal ratchet teeth, the said shaft having recesses extending lengthwise from one end, the said wheel being placed on the shaft over the said recesses, awls constructed to-be inserted from the en of the shaft into said recesses after the wheel is in place and arranged to en age the ratchet teeth of the wheel, the sai recesses havin longitudinal cylindrical cavities and the said pawls having correspondingly shaped portions constructed to enter the said cavities from the end of the shaft only wherebythe pawls are movably retained in the cavities against lateral displacement, means for retaining the pawls against longitudinal displacement, and means for operating the said wheel from a distance.

4. In an explosive engine starter, the combination with an engine, of a shaft connected with the engine and by which the engine may be actuated, a wheel fitting said shaft movably, the said wheel having internal. ratchet teeth, the said' shaft having recesses extend ing lengthwise from one end, the said wheel being placed on the shaft over the said recesses, awls constructed to be inserted from i the en of the shaft into said recesses after the wheel is in place and arranged to en age longitudinal displacement, and means for operating the saidthe'wheelis in place and arranged to engage. In. testimony whereof I afiix my signature the'ratchet teeth of the wheeLimeans for rein presence of two witnesses; taining the 'gawls zigai'n'st l0 itudinal displacement, t e end of the sai shaft be in v M 5 threaded, a shaft-end engaging-the threade Witnesses: end of theshaft, and means for operating the FERDINAND BAUER, said wheel from a distance. GOTTLIEB BAUERN.

CARL 0. 1m.

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