US1338640A - Antiskid-sander for automobiles - Google Patents

Description

E. M; LITTELL.

ANTISKI D SANDER FOR AUTOMOBILES.

APPLICATION FILED 0612; 1919.

1338,6405 e edApr. 27,1920.

5 j I JV/52071711? EARL M. LITTELL, 0F INDIANAPOLIS, INDIANA.

ANTI SKID-SANDER non AUTOMOBILES.

Specification of Letters Patent. Patented A111. 27, 1920.

Application filed October 21, 1919. Serial No. 332,248.

To all whom it may concern. l

Be it known that I, EARL .M. LI'r'rn'LL, a citizen of the United States, residing at Indianapolis, in the 'countyo-f M rion and State of Indiana, have invented. a new and useful Antiskid- Sander for Automobiles, of which the following is the specification.

lvluch danger to life and damage to property results from the tendency of motor car wheels to skid when turning corners or deviating from a straight path while the roadway is slippery from rain or ice or other causes.

It is well known that sandon thetrack adds to the traction of railwaycar wheels and it is the object of this invention to provide means for discharging sand just ahead of the drive-wheels of automobiles, and the like, on slippery pavements, .not so much to increase their pulling eificiency as to pre vent side-sliding commonly known as skidding.

panying drawings, in which:

Figure 1 is a side elevation of an automobile with my invention assembled therewith in position to operate, portions of the car being broken away to show the mechanism. 4 I

Fig. 2 is a view in vertical cross section on the line 22 of Fig. 8 of the sand discharging mechanism. f

Fig. 3is a rear elevation and partial vertical section of the same.

Fig. 4 is a fragment in vertical section of the sand receptacle showing the door construction for filling the receptacle.

Fiez' 5 is a perspective view of, a modified form-of device for actuating the sand discharge from the brake-lever, in common use, and Fig. 6 is a modified form of discharge.

Like characters of reference indicate like parts in, the several views.

The supply of sand for my-purpose is contained in a receptacle 6 which is fastened under and to the rearof the running board 7 of the car as closeto the rear drive-wheel as practicable. This receptacle has a tapering bottom which preferably discharges through an oblong hole to in sure the discharge of a thin and comparatively wide layer of sand so there will be 1 accomplish the object of the invention by the mechanism illustrated in the accom-.

less likelihood of the drive-wheel missing the sand layer deposited through it.

An extension surrounds the discharge hole and slopes to the rear to discharge in a rearward direction toward the adjacent drive-wheel 9. The discharge from the extension is controlled further by a plate 10 hinged at its upper end by attachment in a fixed manner to a shaft 11, which shaft passes loosely through ears 12, integral with the extension 8. A spring 13 acts to normally press the plate against the extension 8 to close the discharge from the latter.

Mounted in the receptacle above its discharge hole, on a rock-shaft 15, is a stirrer having blades 16, here shown as four in number, which stirrer agitates the sand to keep it from packing and sticking and to insure a readier discharge. The blades are preferably so proportioned and located as to measure the amount of sand and cut off the discharge when the shaft 15 is rocked a quarter of a revolution. The swinging open of plate 10 and rocking of the stirrerblades 16 are synchronized by thefollowing mechanism: The shaft 11 is provided with a fixed arm 17 and the shaft 15 with a loose arm 18 having a pawl 38 which. engages with appropriate teeth on a ratchet'wheel 37 fixed on the shaft 15; the outer arms 17 and 18 are connected bymeans of a link 19. One end of a rod 20 is pivoted to the link 19, and the other end of the rod is hinged to thebrake-rod 21, which connects with a footlever 22, present in all motor cars as now commonly constructed.

By the above mechanism whenever the brakes are set, which generally occurs in the other piece and terminates with a lateral lug 24, which extends outside of the sleeve through a longitudinal slot in the latter. 4

The sleeve has a lateral lug with a threaded hole through which is a set-screw 25, which contacts the lug 2 1. The amount of lost motion permitted between the two parts of rod 20 before the set-screw, contacts thelug 1 I 24 depends on the projection of the setscrew, and this can be regulated.

P A latch lever 33 is pivoted to ears from the extension 8 and is pressed by a spring 36 toposition to lock the plate 10 when the latter is closed. A rod 34 connects the lever 33 with the sleeve 23. The sleeve moves an appreciable distance before the rod is actuated to swingplate 10 open, which advance movement ,unlatches the plate'10 in time for it to be opened without being held by the latch.

The drawing shows the rod 20 as attached to the general brake-rod, but it may be connected with the emergency brake-rod where :it is desired that the sanding mechanism should function. At other times it is turned tothe position shown by the dotted lines,

when the operation of the foot-lever in controlling the brakes will not operate the sanding mechanism. A hinge-piece 29, for the attachment of rod 20 to. brake-rod 21, is in two parts, clamped together by bolts as shown in Figs. 2 and 3, for quick and convenient attachment to cars in use.

I have described the device for one side of an automobile, but it will be understood that the mechanism is used in .du'plicate one for each running board to supply sand in front of both of the traction wheels of the car. The two operating rods 20 will connect with the same brake-leverx22.

A door 30is provided in an opening -in i the front of the sand-receptacle for filling,

the latter. Itis hinged at its lower edge and has a suitable lock 31'. It also has side flanges 32 to keep the sand from falling out there during the filling operation.

thus fullydescribed my invention, what I claim as new and wish to secure by Letters Patent of "the United States, is

1. The combination with an automobile, of sand-holding receptacles having discharges upon the roadway immediately in front of the traction wheels of the automobile, closures for said discharges, manually v operated means for opening the discharges and adjustable means in said last means {or yarying the extent of the opening.

2. The combination with an automobile having a brake lever, of sand-holding receptacleshavi'ng discharges upon the roadway immediately infront of the traction' wheels of the automobile, closures for said discharges, means for opening the discharges when the brake is set, and means for regulating the amount of discharge.

3. The combination with an automobile having a brake-lever, of sand-holding reway immediately in front of-the traction wheels of the automobile, closures for said discharges, means operated by the manipu lation of the brake-lever for opening the discharges, means for regulating thesize of the openings, and brakedever mechanism adapted at will to render the sanding mechanism inoperative.

4. The combination with an automobile,

of sand-holding receptacles having disceptacles having discharges upon the roadcharges upon the roadway in front of the traction wheels of the automobile, closures for said discharges, latches to hold the closures in closed positions, manually operated means for opening the discharges and for the automatic unlatching of-the closures preliminary to said opening.

The combination with an automob' e, of sand-holding receptacles having discharges upon the roadway, closures for said discharges, stirrers in the receptacles which also measure tr: e amount of sand discharged, and manually iperated means for opening and closing the closures and for simultaneously operating the stirrers.

In witness whereof I have hereunto set my hand at Indianapolis, Indiana this 16th day of Oct, 1919.

' EARL M. LITTELL.

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