US1734276A

US1734276A - Sanding device for automobiles

Info

Publication number: US1734276A
Application number: US248795A
Authority: US
Inventors: Skolnik Max; Heller Bernard
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-01-23
Filing date: 1928-01-23
Publication date: 1929-11-05
Anticipated expiration: 1946-11-05

Description

Nov. 5, 1929. M. sKoLNlK ET A1.

SANDING' DEVICE FOR AUTOMOBILES Filed Jan. 23, 1928 Max Skolnl/f. ,Bern rd Hellen Patented Nov.A 5, 1929 MAX SKOLNICK AND IBEBNAERD KELLER, F MINNEAPOLIS, MINNESOTA.

summe DEvIcE ron nuromonmns Application alea zanuary 2s, 192s. serial No. 248,795. l

Our invention relates to sanding devices for automobiles and an object is to provide a device for delivering sand upon the roadway in front of the driving wheels of the automobile. Another object of our invention is to provide a device of this character which is efficient in operation and economical to manufacture and which is under almost instant control of the driver for the purpose of preventing accidents when driving over slippery surfaces.

The full objects and advantages of our invention will appear in connection with the detailed description thereof, ad the novel` o features of our inventive idea will be particularly pointed out in the claims.

In the accompanying drawings wh1ch illustrate the application of our invention,-

Fig. 1 is a side elevation view of an automobile showing a sanding device applied thereto. Fig. 2 is a view of the sand box mostly in vertical section. Fig. 3 is a view showing the discharge pipe in vertical secton. Fig. 4 is a. view in section on the line 4-4 of Fig. 3. Fig. 5 is a view showing a wlring diagram. Fig. 6 is a fragmentary view showing a modification.

Referring to the 'construction shown in the drawings, the numeral 10 designates one 30 of the running boards and the number 12 designates one of the rear fenders of an automobile. It will be understood as a matter of course that these are of the same character for both sides of the automobile and that therefore our device is duplicated for both of the sides. A sandbox 14 is secured to the rear fender 12 in any suitable manner. As shown, the upper portion of the fender is provided with an opening surrounded by an ex- 43 ternally threaded boss 16 adapted to receive an internally threaded flanged ring 18 which serves to hold the sandbox 14 in place. The upper side of this sandbox has a filling opening which is closed by a screw cap 20 while the rear wall of the sandbox contains a piece Aof transparent material '-22 through which the condition of the sandbox may be observed so that the sand may bel replenished when necessary. From the bottom of the sandbox, a plpe 24 extends down inside the fender 12. 50 This pipe is curved to correspond to the curvature of the fender and at its lower end Ais provided with a nozzle 26 having a screen l27 atits bottom and adapted to dlscharge sand m front of the rear or driving wheel. The 55 discharge of the sand is by gravity and in order to control the passage of sand through the plpe 24, the latter is provided with a shutoft' device or valve'which is shown in the form of a damper 28 having a crank arm 30 extend- 60 ing out therefrom. A spring 31 connecting this crank arm with a fixed part of the frame of the automobile normally holds the damper closed. The crank arm is connected by a flexible element 32 with a solenoid core 34 65 forming part of a solenoid having a coil 36.

In order to control the delivery of sand from boxes at both sides of the automobile, a exii ble element 32 is connected to asecond solenoid core 34 operating in connection with a 7o second coil 36. The

coils

36 and 36 are in a circuit connected with a source of electrical energy designated at 38 in Fig. 5. A switch 40 is placed in the circuit, this switch being located within reach of the driver as by mounting it on the steering wheel. Fig. 6 shows a modification in which a sandbox 42 is placed on the running board 10 adjacent the rear fender. A pipe 44 leads from the bottom of this sandbox and the lower end of this pipe is provided with a discharge nozzle 46 adapted to discharge sand in front of the driving wheel. In this form, the damper 28 is placed in the pipe 44 and is operated in the manner previously set forth.

The operation and advantages of our invention will be readily understood in connection with the foregoing description. By closing the switch 40, the solenoid cores 34 and 34' are actuated to cause the dampers to 90 open so that sand is delivered in front of the rear wheels. When driving over slippery roadways, the driver may almost instantly release some of the sand when he wants to stop the automobile. The release of sand will also aid in starting the automobile by tending to rcvent spinning of the wheels and will tend to prevent skidding.

We claim: 1. A sanding device for automobiles comlower portion and mounted on the up er portion of the fender of an automobl e, said fender being provided with an opening underneath the opening of said sandbox, a curved discharge pipe underneath the fender and conforming to the curvature thereto, said discharge pipe having its upper end connectcd with said openings and its lower end positioned in front of a driving wheel of the automobile, a shutoff device for said pipe,

and mechanism for operating said shutoff device.

2. A sanding device for automobiles comrising a sandbox having an opening in its ower portion, an outwardly extending flange around said opening, said opening being placed directly above an opening formed in the upper portion of the fender of an automobile, an externally threaded boss surrounding said second opening, an internally threaded fianged ring screwed on said boss and having its iange engaging said outwardly extending flange, a curved discharge pipe underneath the fender and conforming to the curvature thereof, said discharge pipe having its upper end connected with said fender opening and its lower end positioned in front of a driving wheel of the automobile, a shutoff device for said pipe, and mechanism for operating said shutoff device.

3. A sanding device for automobiles comprising a c lindrical receptacle for sand. said receptacle ing rounded on its forward end and having an opening in its lower portion, said opening being placed directly above an opening formed in the upper portion of the fender of an automobile, means for securing said receptacle to said fender in said position, a curved discharge pipe underneathv the fender and conforming to the curvature thereof, said discharge pipe having its upper end connected with said openings and its lower end positioned in front of a driving wheel of the automobile, a shutoff device for said pipe, and mechanism for operating said shutoff device.

4. A sanding device for automobiles comprising a cylindrical receptacle for sand, said receptacle having its rear end closed with transparent material and having an opening in its lower portion, said opening being placed directly above an o ening formed 1n the upper portion of the ender of an automobile, means for securing said receptacle to said prising a sandbox having an opening in itsdevice for said pi e, and mechanism for operating said shuto device. l

In testimony whereof we hereunto aix our signatures.

MAX SKOLNIK. BERNARD HELLER.