US1122797A - Means for preventing overload on self-propelled vehicles. - Google Patents

Description

W. D. OSTERHOUDT. MEANS FOR PREVENTING OVERLOAD 0N SELF PROPELLED VEHICLES. APPLICATION FILED MAY 10, 1912.

1, 1 22,797. Patented Dec. 29, 1914.

4 SHEETS-SHEET l.

W. D. OSTERHOUDTI MEANS FOR PREVENTING OVERLOAD 0N SELF PROPELLED VEHICLES.

APPLICATION FILED MAY 10, 1912. 1, 1 22,797. Patented Dec. 29, 1914.

4 SHEETS-SHEET Z.

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n00, nfoz W. D. OSTERHOUDT. MEANS FOR PREVENTING OVERLOAD 0N SELF PROPELLED VEHICLES.

APPLICATION FILED MAY 10, 191-2,

Patented Dec. 29, 1914.

4 sHEETs-sHi1ET s.

W. D. OSTERHOUDT'. MEANS FOR PREVENTING OVERLOAD 0N SELF PROPELLED VEHICLES. APPLICATION FILED MAY 10, 1912.

1, 122,797. Patented Dec. 29, 1914.

4 SHEETS-SHEET 4.

" i wan sraans PATENT onion WILLIAM B. OSTERHOUDT, F POU'GHKEEPSIE, NEW YQBK, ASSIGNOR, OF Ohm-HALF To EVERETT v. WATSON,

OF FISHKILL-ON-THE-HUDSQN, NEW YORK.

'MEANS;FOR PREVENTING OVERLOAD ON SELF-PROPELLED VEHICLES.

To all whom it may concern:

Be it known that I, WILLIAM D. OSTER- 'HQUDT, a citizen of the United States, and a resident of Poughkeepsie, county of Dutchess, State of New York, have invented certain new and useful j Improvements in Means for Preventing Overload on Self Propelled Vehicles,

vehicles and the objects of .to devise means for In accordance with this invention, means are prov1ded for automatlcally preventing the operation of the vehicle when the body and springs are loaded beyond a predeter- 0 mined limit. lVhen the vehicle is so overloaded, it cannot be started, and the invention also includes devices which are automatically brought into operation by flexure of the springs to a predetermined degree, as in passing over rough roads, so that the source of power is at least momentarily .thrown out of operative relation with the driving gearing, thus checking the vehicle.

' ings, in which- The invention is illustrated in its preferred forms in the accompanying draw- Figure 1 is a side elevation of a vehicle .partly broken away, with the invention applied thereto, the front and rear wheels, the springs and the side frame on the side at which the observer is looking being removed; Fig. 2 is an enlarged detail view of the adjusting means shown in Fig; 1; Fig.

3 is a side elevation of a vehicle similar to Fig. 1, showing a modification of the invention; Fig. 4 is an enlarged detail view of the adjusting means shown in Fig.3; Fig. 5 is a rear elevation of the vehicle shown in Fig.

3 1; Fig. 6 is an enlarged detail rear elevation side view of a modification; Fig. 13

of the adjusting means shown in Figs. 1

and 5; -Figs. 7, 8 and 9 are side elevations similar. to Fig. 1, of vehicles embodying .modifications of the invention; Fig. 10 is a similar side elevation of a vehicle embodying-another modification; Fig. 11 is a top plan view of Fig. 10; Fig. 12 is a similar is a top view of Fig. 12; Fig. 14 is a similar side viewof a modification; Fig. 15 is a top plan Specification of Letters Patent.

Patented Dec. 29, 1914i.

7 Application filed May 10, 1912. Serial No. 696,401.

view of Fig. 14-; and Figs. 16 and 17 are side views of modifications.

Referring to the drawings, and more particularly and B the body portion.

The ground wheels are indicated at C mounted on the front and'rear axles or wheel connecting members D and E.

The invention is particularly applicable to motor trucks, it being understood that a motor truck is illustrated diagrammatically in the drawings, and for simplicity, only so much of the details of the operative parts of the engine and propelling or running gear are shown as will serveto illustrate the invention.

In carrying out the invention, any suitable means may be provided for automatically preventing the operation of the vehicle when the body is oi'erloaded or when the springs are flexed beyond a predetermined limit, as in passing over rough roads. The overload preventing means should preferably be adjustable, so as to act at different predetermined loads, and should preferably be self-restoring, so that when the cause for preventing the operation of the vehicle is removed, the vehicle may be operated as usual. I

The controllingt means for preventing overload may be arranged in any desired location to operate in connection with any suitable part of' the source of power or power unit, and may be connected to dis engage the clutch, disconnect or short circuit the electric connections, shut off the supply of fuel, or throw the source of power out of operative relationship with the running gear in any other desired manner. The

controlling means are preferably interposed between the body and a wheel connecting member or axle and are adapted to be operated by movement of the body relative to said member.

In Fig. 1 suitable operative connections are shown for disconnecting the clutch of the motor when the body of the vehicle is overloaded, and in this instance F represents the clutch members and G is the foot lever pivoted at H to the body frame A and having its bent end or foot 21 connected to one of the clutch members F in the usual manner. A. simple and ,convep ent dev ce to Figs. 1, 2,5 and 6, A represents the side frames of a self-propelled vehicle adapted to be operated by the movement of the body of the vehicle relativ to the axles, may consist of a. toggle acting connection comprising the members J and K pivoted to each other at L and having their ends pivotally connected respectively to the rear axle E and to the body B of the vehicle. A shoe 0 provided with a lug l. may be secured to the axle E as by means of the ,straps Q and the forked end ll of the toggle member J is pivoted on the lug P. A plate foot lever G.

A loose adjustable connection in which provision is made for lost motion, is pro vided between the two portions of the rod V and in Fig. 2 this connection-is indicated as a loop or member X of metal similar to a turn buckle, having a socket portion Y at one end threaded to receive the threaded end Z of one portion of the rod V. The other portion of the rod V is pro vided with a loop a loosely engaging the loop or member X, and with the parts in the position shown in Fig. l, a certain amount of'play or lost motion is provided in the adjustable connection. When the vehicle is loaded, tending to depress the body toward the axles and flex the springs, the toggle acting joint J-K will tend to close and draw one portion of the rodV longitudinally. The adjustable connection X is so adjusted that at a predetermined load on the vehicle, the pull on thorod V will be transmitted from the toggle point J-K to the foot lever G, thus disengaging the clutch members F and disengaging the motive power from the running gear. The vehicle therefore cannot be started until the load is lightened to a degree which will permit the clutch members F to engage.

Marks or other indications b, c, (5 may be provided on or in connection with the adjustable connection X to indicate the relative amount of lost motion which must be taken up in the longitudinal member V by the depression of the body due to the load before the overload .preventer will operate to disengage the clutch members, and these marks or indications Z), e, (Z may indicate tons. The adjustment is effected by the position of the screw threaded socket Y on the screw threaded end Z of the rod V. The socket Y is preferably provided with an aperture e adapted to register with apertures f in the rod V and a pin 9 may be inserted through the registering apertures tb adjusting device will be indicated. by the breaking or removal of the seal. The pin It: holding the member V to the foot lever G may also be provided with the Wire seal 0 and if desired, the other pivotal connections of the longitudinal rod and toggle acting devicemay also be sealed in a like-manner to prevent tampering.

The device so far described, operates, not only to prevent the operation of the vehicle on overload on the body, but also'op-- crates to at least momentarily disengage the clutch members F in case the vehicle is passing over rough places in a road, so that the vehicle cannot be driven at high speed over rough places, but callynotified that he should slow down.

in Figs. 3 and d a device substantially like that shown in Fig. 1 is illustrated, in which the toggle acting members J and K are reversed and a compression member p connects the toggle to the foot lever G, instead of using a tension member V as shown. in Fig.1. The adjusting device, Fig. 4:, comprises a socket member 9 having a socket r at one end in which one portion of the rod 32 engages. The other end of the socket member 9 is internally threaded at s to receive the threaded end t of the remaining portion of the rod g0, thereby permitting adjustment and providin for 19stmotion between the parts. The e ect of overload or the fiexure of the springs beyond a predeterthe driver is automati mined amount transmits motion through the compressionmember p to the foot lever G, thus disengaging the-clutch members F as inthe construction illustrated in Fig. 1.

In Fig. 7, a modification of the device is shown, in which a pull is transmitted to the foot lever G an means in addition to the adjustable device X are provided for adjusting the point at which the toggle acting device is operated. in this modification cylinder u is suitably strapped to the rear axle E and a tubular member 7; operates in said cylinder. The toggle men1- ber J is pivotally connected to the cylinder 11 and the toggle member K is pivotall connected to' the movable member '2). g short rod or pin w is suitably connected onderneath the body B of the vehicle and enters the member a. A stop m'is adjustably pinned to the rod '20 as by means of a pin or bolt y adapted to engage different apertures in the rod to. In the operation of the device shown in Fig. ment of the body Carri es the stop. :0 tab at the gagement with the member v, thus forcing said member within the cylinder at and tending to close the toggle JK. A pull is thus transmitted through the tension memher or rod V to the foot lever G and the clutch members F are separated.

In Fig. 8 a modification of the device is shown, in which means are provided for disconnecting the electric connections for the magneto upon overload on the body. In this modification the electric wires 2 and 3 which represent a portion of the electric cir cuit of the motor truck are connected to the contact 4 and the pivoted switch member 5 respectively. A bell crank lever 6 is pivoted on the frame of the vehicle and a retracting spring is connected to the switch member 5. A cord, chain or other suitable connection 8 is connected to the knuckle of the toggle joint J-K and also connected by means of a'cushioning spring 9 to the bell crank lever 6. Any suitable device 10 shown diagrammatically may be provided in the cord. or chains 8 for adjusting the tension of said chain or for adjusting the point at which the pull will be transmitted from the toggle acting device to the bell crank lever 6. The cushioning spring 9 which prevents shock to the apparatus should preferably be stronger than the retracting spring 7. One end of the bell crank lever 6 is arranged adjacent the pivoted switch arm 5 and when the tension on the cord or chain8 is sufficient to rock the bell crank lever 6, the pivoted switch arm 5 will be moved out of contact with the contact 4 and the circuit will be broken, thus preventing the transmission of power to the running gear.

In Fig. 9 a modification of the device is shown, in which means are provided for shutting 0d the supply of fuel to the motor upon overload on the body. In this figure the fuel supply pipe 11 is indicated and provided with a suitable cook 12. A cord or chain or other suitable connection 13 connects the toggle J-K over a guide pulley 14: with the cook 12. A cushioning spring 14: is preferably provided in the connection 13 and a retracting spring 15 is connected to the cock. A suitable adiusting device 16 is shown diagrammatically and connected in the connection 13. Obviously the cook 12 will be closed when the tension 'on the connection 13 is suiiicie'nt and the cock will be automatically opened when the tension is relieved In Figs. 10 and 11 a duplex apparatus is shown in all respects substantially similar to that shown in Fig. 1, except that two.

toggle act ng devices J-K are provided one at each end of the axle and pivotally connected by tension rods V with an equalizer bar 17 slidablv supported in the brackets 18 underneath the car body. The

equalizer bar 1? is .pivotally connected by the tension member V with the foot lever G and in this construction the pull on the members V and .V is equalized.

in Figs. -12 and 13 another form of equalizer is shown, in which a spring 19 is provided for holding the tension members V and V.

In Figs. 14 and 15. another duplex modification of the apparatus is shown, in which flexible tension. members 20 are provided connecting the toggles J-K with the equalizer bar 17. These flexible connections 20, which may be in the form of cords, chains or other suitable connections, pass over the guide pulleys 21. The bar 17 is connected by a connection 40 with the footlever G and any suitable adjusting device 22, as for instance, a device like that shown in detail in Fig. 2, may be provided in the connection 40.

In Figs. 16 and 17, another modification of the invention is shown, in which the pull to the foot lever is transmitted from one or more of the shackles on the rear springs. In Fig. 16 the rear shackle 23 o'fone of the springs is elongated at 24: and suitably connected by means of the cord, chain or other device 25 with the foot lever G. The

shackle 23 as shown is pivoted at 26 to the lug 27 on the side frame A and the upper leaf 28 of the spring 29 is pivoted at 30 to said shackle. The shackle 31 at the other end of the spring is pivoted on the lug or bracket 32 on the side frame A and the upper leaf 28 of the spring is pivotedat 33 to said shackle 31. As the weight on the vehicle is increased, the springs are flexed and the upper end of shackle 23, swings outwardly from the center, thus transmitting a pull through the cord or chain 25 to the foot lever G and disconnecting the clutch members F.

In Fig. 17 one end of the cord or chain 25 is connected at 34 to the shackle 35 and the cord first passes over a guide pulley 36 connected to the end of the shackle 37 and thence forwardlv to the foot lever G, so that the pull on the cord or chain 25 is compounded when the spring is flexed. Obviouslv the connections shown in Figs. 16 and 17 mav be applied to both'the rear springs instead of to the springs at one side onlv of the vehicle. l

1 claim and desire to "obtain by Letters Patent the following:

1. An automobile road vehicle having ground wheels and wheel connecting members. s rings. a body mounted in connection with the springs, a power unit carried by the vehicle. means for propelling the vehicle from the power unit. and controlling meansinterposed between the bodv and a wheel connecting member adaptedto be operated by movement of the body relative to said member for automatically preventing the operation of the vehicle when overloaded.

2. An automobile road vehicle having ground wheels and wheel connecting members', springs,a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and controllingmeans interposed between the body and a wheel connecting member adapted to be operated by movement of the body relative to said member for automatically preventing the operation of the vehicle when the body is overloaded.

3. An automobile road vehicle having ground wheels and wheel connecting members, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and controlling means interposed between the body and a wheel connecting member adapted to be operated by movement of the body relative to said member for automatically preventing the operation of the vehicle when more than a predetermined weight is loaded on the body.

4. An automobile road vehicle having ground wheels and wheel connecting members, springs, a bodymounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and controlling means interposed between the body and a Wheel connecting member adapted to be operated by movement of the body relative to said member for automatically preventing the operation of the vehicle when the springs are subjected to an overload.

5. An automobile road vehicle having ground wheels and wheel connecting memhers, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and controlling means interposed between the body and a wheel connecting member adapted to be operated.v

by movement of the body relative to said member for automatically preventing the operation of the vehicle when the body approaches the wheel connecting members to a predetermined distance.

7. An automobile road vehicle havin ground wheels and axles, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, means for automatically preventing the op eration of the vehicle when overloaded, and means for adjusting the overload preventing means to act at different predetermined loads.

8. An automobile road vehicle having ground wheels and axles, springs, a body mounted in connection. with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and adjustable means for automatically preventing the operation of the vehicle when overloads 9. An automobile road vehicle havingground wheels and wheel connecting members, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and controlling means interposed between the body and a wheel connecting member and connected to be au tomatically operated by movement of the body relative to the wheel connecting members, for preventing the operation of the vehicle when the body is overloaded.

10. An automobile road vehicle having ground wheels and axles, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit, and adjustable means connectedto be automatically operated by movement of the body relative to the axles, for preventing the operation of the vehicle when the body is overloaded.

11. An automobile road vehicle having ground wheels and axles, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling thevehicle from the power unit, means connected to be automatically operated by movement of the body relative to the axles, for preventing the operation of the vehicle when the body is overloaded. and means for setting the overload preventing {means to act at predetermined loads on the iody.

12. An automobile road vehicle having ground wheels and wheel connecting mem bers, springs, a body mounted in-connection.

with the springs, a power unit carried by the vehicle, means'for propelhng the vehicle from the power unit and self-restoring contr 1lingmeans interposed between the body and a wheel connecting member adapted to be operated by movement of the body relative to said member for automatically preventing the operation of the vehicle when morethan ,a predetermined weight is placed on the springs.

13. An automobile road vehicle having ground wheels and wheel connecting members, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling thevehicle from the power unit, and adjustable selfrestoring controlling means interposed between the body and a wheel connecting member adapted to be operated by move ment of the body relative to said member for automatically preventing the operation of the vehicle when more than a predetermined weight is placed onthe springs.

14. An automobile road vehicle having ground wheels and axles, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling the vehicle from the power unit,

means arranged at each end of the rear axle connected to be automatically operated by movement of the body relative to the axles, for preventing the operation of the vehicle when overloaded, and means for equalizing the strain on said overload preventing means. 15. An automobile road vehicle having ground wheels and wheel-connecting mem bers, springs, a body mounted in connection with the springs, a power unit carried by the vehicle, means for propelling. the vehicle from the power unit, and controlling means interposed between the body and a wheel connecting member adapted to be operated bymovement of th body relative to said member, for automatically throwing the source of power out of operative relation with the running gear at a predetermined load on, the springs.

16. An automobile road vehicle having ground Wheels and axles, springs, a body mounted in connection withthe springs, a

power unit carried by the vehicle, means for propelling the vehicle from the power unit,-

means for automatipall-y preventing the operation of the vehicle when overloaded,

body to and from the axle, and connections operated by said controlling device for preventing the operation of' the vehicle when the body is loaded beyond a predetermined.

limit, whereby the body approaches the axlesto an extent which will cause the controlling device to operate the said connec tions controlled by said device.

18, In a motor drivenroad vehicle, the combination with the vehicle frame and axle, of controlling means interposed between said frame and axle adapted to automatically prevent starting the vehicle, the operation of said means depending upon the distance between the frame and axle.

19. In a" motor driven road vehicle, the combination with the vehicle frame and axle, of an electrical circuit controllingthe operation of the motor, and means secured to the frame and axle, respectively, adapted to make and break said circuit, the operation of said means depending upon the distance between said frame and axle.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

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