![]() The end portions of the segments 13a and 13b are formed in half thickness mating attachment end portions and a pin 13c pivotally connects one pair of mating ends together, as shown in FIG. The lock 13 is formed from a pair of generally semi-circular curved arms or segments 13a and 13b, best shown in FIG. ![]() 2 a receiving slot 16a in the "fifth wheel" 16 is designed to receive the king pin therein and the body of the lock 13 is sufficiently large to positively obstruct entrance of the king pin into the mouth of said receiving slot 16a. 1 and has a "fifth wheel" 16 mounted in the conventional manner at the rear thereof. Y10T70/7661- Detachable or removable cylinderĪ tractor unit 15 is also illustrated in FIG.Y10T70/5611- For control and machine elements.Y10T- TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.B62D53/085- King pins fitted with anti-coupling devices, pivotal or retractable king pins, e.g.B62D53/08- Fifth wheel traction couplings.B62D53/04- Tractor-trailer combinations Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle.B62D53/00- Tractor-trailer combinations Road trains.B62- LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS. ![]()
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