Jan.‘7, 1947. K_ F, sENTlVANY ' 2,414,067 TIRE TRACTION‘ DEVICE Filed Nov; 15, 1943 I Int/9x2. 1 A 2' __ a ‘ 1/ 5 k I HTTOPNE'K Patented Jan. 7, 1947 2,414,067 UNITED STATES PATENT OFFICE 2,414,067 TIRE TRACTION DEVICE Kalman F. Sentivany, Hartford, Conn. Application November 15, 1943, Serial No. 510,282 . 3 Claims. 1 (Cl. 152-245) This invention relates to tire traction devices, such as anti-skid chains commonly used on tires of vehicles. ' An object of this invention is to provide such 2 cated at l2 in Fig. 5. It will be noted that the said loops H provide shoulders, at the outwardly extending portions thereof, which serve to clamp the plates Hl—l0 against the washers in the laminated body of the member 1. The said cross members are preferably ?at viding su?icient traction to drive the vehicle. and of a greater width at the bottom thereof in A further object of the invention is the pro order to prevent their rotation on the surface vision of such a device which will prevent skid» of the tire while in use. ding and which will also eliminate excessive 10 The longitudinal members 8 are also con vibration when the device is used over hard structed with laminations of washers similar to pavements. those used in the cross members 1. 'The washers Further objects and advantages of the in in said longitudinal members, however, are se~ vention will be more clearly understood from cured by a single wire l3 having loops 14 at its the following description and from the accom» a device which is suitable for use in mud, sand, snow, or under other similar conditions, for pro~ panying drawing in which: Fig. 1 is an end view, in central vertical section on line l-l of Fig. 2, showing the device at~ tached to a vehicle tire. Fig. 2 is an elevational side view of a portion ends clamping the plates l5 against the lamina tions. In the form shown in Fig. 6, the ends of the loops are extended through the clamping plates, as clearly indicated at IS, in order to prevent opening of the loops by an excessive pull. As clearly shown in Fig. 3, it will be noted that of the device. Fig. 3 is an elevatlonal plan view showing a the loops ll of the cross members receive the portion of the device in ?at position. loops I4 of the longitudinal members and also Fig. 4 is an elevational side view showing one the connecting links I‘! and I8 which connect of the side chain hooks used in the device, 25 the tread chain, consisting of the cross members cross Fig.member 5 is a plan taken view, oninline horizontal 5-—5 of Fig. section, 6. of ‘I and the parallel rows of the longitudinal mem bars 8, to the side chains 6—6. Fig. 6 is an end view of the same. The said side chains are connected together in Fig. 7 is a plan view, in central horizontal sec~ tion, of one of the longitudinal members, show 30 a, conventional manner by the use of the hooks, as indicated at l9. It is intended that the side ing a modi?ed form of loop therein. chain ?tting on the inside of the tire shall be As shown in the drawing, the numeral 5, de separated into four sections and provided with notes a vehicle tire of common construction on four of these hooks while the outside chain mem which‘ my improved traction device may be used. Said traction device comprises side chains 35 ber will be provided with only one. This will 5-41‘, of conventional construction, by which the provide for easily detaching the device from the device is attached to the tire. tire by simply disconnecting the four inside A plurality of spaced cross members ‘I and hooks and pulling the device outwardly off the tire. longitudinal members 8 are secured together to form a chain ?tting around and against the 40 I claim: tread of the tire. Each of these members is 1. In a traction device of the character de preferably of laminated construction consisting scribed, a cross member comprising an elongated of a plurality of washers which are cut from a body consisting of a plurality of resilient wash suitab’e material, such as rubber covered with ers forming laminations in said body, a pair of canvas or other similar resilient material. The 45 spaced wires extending through said laminations, said washers in each of the members 1 are se» a plate at the opposite ends of said body, loops cured together by means of a pair of wires 9-9 on said wires bent in opposite directions and re which extend longitudinally through spaced taining said plates in position to clamp said openings in the washers. At the opposite ends laminations therebetween, longitudinal members of the members, I provide clamping plates Ill-4 4) 50 extending between said cross members and con which are forced against the ends of the mem bers by means of loops lI-II in each of said wires. These loops are bent outwardly and then inwardly with their ends preferably adjacent to the surfaces of the said washers lO-IO as indi 55 nected at each end thereof to said loops, 2. pair of side chains for securing said cross members to the tire, and means connecting said cross members to said side chains. 2. In a traction device of the character de 2,414,067 scribed, a cross member adapted to extend across the tread of a vehicle tire; the said member in cluding a body portion which is rounded at one side thereof and substantially ?at at the opposite side; the said body portion being constructed of a plurality of laminations of wear-resisting ma terial, a plate at each end of said body portion, a pair of spaced wires extending through said body portion, and loops at the ends of said wires for clamping said laminations between said plates. 3. In a traction device of the character de scribed, a plurality of longitudinal members each consisting of a body portion formed of a plu rality of laminations of wear-resisting ?exible material, a plate at each end of said body por tion, a wire extending through said laminations and plates and having 1oops at the opposite ends thereof abutting said plates to thereby clamp said laminations therebetween, each of the looped portions of said wire having the end thereof ex~ 10 tending into an opening in the end plate to pre vent opening of said loop. KALMAN F. SENTIVANY.