US1465668A - Stop lever - Google Patents

Description

Aug. 2l, 1.923. 1,465,668

v. R. HEFTLER STOP LEVER Filed Dec. 5, 1920 MUN QW,

Patented. Aug. 21, 1923.

, l attesta UNITED stares ea-TENT @5g-HQE@ VICTOR E.. HEETLER, or DETEOInfMIOHIGAN, AssreNoE 'ro SOCIETE DU CAEBEA- 'rEUE ZENITH, or LYON, FRANCE, A OOEPOEATIOrroEFRANCE.: f

Y STOP LEVER@ Application filed December 3, rezo.y seral'ivo. 428,164. y

To all whom 'it may concern:

Be it known that I, VICTOR R. HEETLER, a citizen ofthe United States, residing tt-Detroit, county of Wayne, and State of Michigan, have invented a new and useful Improvement in Stop Levers, of which Vthe following is a full, clear, and `exact description.

The present invention relates broadly to stop levers and'more particularly to levers of this type adapted for use in connect-ion with throttle shafts of carburetors and the like.

The principal object of the present invention is to provide a sheet metal lever particularly adapted for use with carburetors, and provided with a frictionally held adjusting device. Y

Another object of the present invention is to provide a. sheet metal stop lever having one end thereof bent to' form a fixed stop, and the other end bent to receive an adjustable screw and a spring arm co-operating therewith to hold the screw in the desired position.

The foregoing and other Objects, together with their attendant advantages, will be vapparent as the invention becomes better understood, by reference to the accompanying specification and drawings forming a part thereof, it being premised that changes may made in the various details and the manner of operation, within the scope of the appended claims, without departing from the spirit of the invention. v

Figure 1 is a side elevation, partly broken away, of a portion of a carburetor having my improved stop lever applied thereto;

Figure 2 is a side view of the construction illustrated in Figure V1 Figure 3 is a top plan view of the stop lever shown in Figure 1. Y

Referring more particularly to the drawing, there is illustrated a Asheet metal stop lever comprising an apertured main body portion 1, having secured thereto in any desired manner a hollow steel hub'Q, adapted to receive a tapper pin or key 3 for attach- Y 'body having an arm projecting outwardlyY ingthe lever to a throttle'shaft or the like 4. From the main body portion 1 radiate an arm 5 having its outer end bent inwardly to form a fixed stop 6, and a second arm 7, carrying an adjustable stop screw 8.

For receiving the stop screw 8 the arm 'T is formed with an angular tongue' 9, the outer end of which is rolled upon itself to form al hollow cylinder 10, internally screw threadedto co-operate vwith the screw 8. It 'i will 'be apparent that both the fixec'l stop' and the adjustable stop 8,`are adapted to engage a suitable projection 11 secured at anyV desired position to thecarburctorcasing;

the stop `6 limiting the opening movement of thethrottle shaft and the stop S limiting the extent of closing movementV thereof. y In practice 1t has Vbeen -ffoundne'cessary Vvto provide some means for holding the adjustable stop in its adjusted position. This Y has heretofore been accomplished by lock nuts and the like requiring the use of a sep',- arate tool for tightening or loosening the same, but in the present case the arm 7 is provided with a projection 12 having an-offset portion 13 bent to underlie and extend substantially parallel to the screw 8. The offsetV portion 13 is provided with an opening within which is riveted a housing 14 for the friction pawl 15 carried by arstem 16 and normally projected upwardly into engagement with the knurled head 17, on the screw 8, by a compression spring 18. The stem 16 may extend through the bot-tom of the housing 14 and have a head 19 formed thereon to prevent accidental loss of the pawl 15. Vith the construction described, it will be obvious that there is provided an inexpensive sheety metal stop lever construction which may be easily produced by stamping and which readily adapts itself to the purpose intended.

. rIhe advantagesv of the present invention arise from the provisionof frictional retaining means carried by the lever and enabling an easy adjustment of the movable stop while preventing ythe accidental Vmovement thereof.

Further advantages of the invention arise .from the sheet metal construction having a 1. A. stop lever, comprising a sheet metal therefrom, a tongue on said arm rolled upon*- itself to form a hollow cylinder, screw threads in said cylinder, ascrew adjustably co-operating therewith to form an adjustable stop for said lever, a projection on said lever extending substantially parallel to the Y longitudinal laxis of said screw, a housing Vlever extending substantially parallel to the longitudinal axis of said screw, and proy vided with an openingtherein, a housingsecured in said opening, and a. spring,` device carried by said housing for maintainingsaid screw in adjusted position, substantially as described.

3. A stoplever comprising a sheet metal body having a pair of arms extending angularly thereiroin, an integral fixed stop carried by one of said arms,an adjustable stop 'Y ,carried the other of Vsaid arins, said last mentioned arm having` an integral projection and means carried bysaid projection and cooperating,r With said, vadjustable stop for holding' the latter in adjusted position,

substantially as described.

4L A stop lever comprising a sheet metal body having Ya substantially flat intermediate portion provided With a throttle shaft receiving` opening, a separate hub secured to said body portion and having an openingrr alining with theopening'therein', said body portion having an arm extending angularly therefrom and forming a fixed stop, a second arm extending angularly therefrom, and an adjustable stop carried by said second'arm, substantially as described.

In testimony whereof I have hereuntoset my hand. j j Y Y VICTOR R. HEFTLER.v

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