Patent GB-1152997-A (GB)
Title: Improvements in Automatic Central Buffer Coupling for Rail Vehicles
Inventor: LIEBIG MANFRED
IPC: B61G5/08
Filed: 1966-07-20
Abstract: 1,152,997. Railway vehicle automatic couplers. GERMANY, MINISTRY OF TRANSPORT. 20 July, 1966, No. 32595/66. Heading B7T. A coupler head mounts arms 12, 13 on a vertical spindle 14, the arms being kept open by a torsion spring 15 and the arm 12 being returned to its position as shown by a spring 16. The arm 12 is provided with surfaces 10, 11 adapted to be engaged by abutment surfaces 8, 9 on the guide horn of a mating coupler, so that when coupling up, the arms 12, 13 are swung to move and accelerate a housing 19 containing service pipe connectors into contact with a similar housing on the mating coupler, see Fig. 2 (not shown). The housing 19 is slid outwardly by the arm 13 engaging pin 18 over service pipe sleeves 20 fixed by clamps 23 to a pivoted guide frame 21, but inner sleeves 26 are also moved outwardly by springs 24, and compressed air entering the space enclosing the springs also assist this movement and help in maintaining pressure between the pipe seals 25. The tubes 20 may have limited turning movement in their bearings 22 and adjustable stops 31 and 31<SP>1</SP> are provided. 1,153,005. Steering articulated vehicles. INTERNATIONAL HARVESTER CO. 19 July, 1966 [4 Aug., 1965], No. 32301/66. Heading B7H. Steering control mechanism for an articulated vehicle having two frame sections 12, 14 relatively rotatable about vertical pivot means by steering rams 36, 38 comprises a steering gear assembly 28 for mounting on the front section 12, converter linkage 30 for disposition between the sections 12, 14 to operate in response to input signals from the steering gear assembly 28 for producing proportional output signals, and a control device 32 for mounting on the rear section 14 to actuate the steering rams 36, 38 at a rate proportional to the output signals. The steering gear assembly 28 includes steering gear 42 having a pitman arm 44 actuated in response to turning of a steering wheel 40. The control device 32 comprises either an opencentre spool valve or a variable displacement pump actuated by a control arm 69 for controlling supply of hydraulic fluid to the steering rams 36, 38. The converter linkage comprises a first lever 48 which has one end pivoted on a pin 50 coaxial with the axis of connection between the frame sections and the other end connected to the pitman arm 44 by a link 46, and a second lever 52 which has one end connected by a link 60 to the rear frame section 14 and the other end connected by a link 66 to the control arm 69. A pin 54 interconnecting the levers 48, 52 has at each end studs which are mounted in either of three pairs of apertures 56 and 58, 56<SP>1</SP> and 58<SP>1</SP> or 56<SP>11</SP> and 58<SP>11</SP> in the levers whereby to obtain " low," " normal " and " high " rates of steering response due to the ratio of output to input signals being smaller than, equal to, or greater than unity respectively. A " follow-up " action for terminating a steering movement when the frame sections 12, 14 have adopted the steering attitude corresponding to the degree of rotation of the steering wheel 40 is provided due to displacement of the lever 52 by the link 60 as the sections rotate.