Patent GB-191317946-A (GB)
Title: Improvements in Car Fenders.
Inventor: NELSON FRANK ALLEN
IPC: B61F19/08
Filed: 1913-08-06
Granted: 1914-06-11
Abstract: 17,946. Nelson, F. A., and Flateboe, E. T. Aug. 6. Obstruction-removers of the kind in which a hinged fender is adapted to be swung upwardly to an inoperative position above the car frame. Fluid-pressure cylinders, by which the movements of the fender are controlled, are adapted to be swung with the fender to the inoperative position. The fender frame 24 is pivoted at 26 to brackets 19 carried by pistons 16 moving in fluid-pressure cylinders 7 to which are secured hangers 10 pivoted at 15 to brackets 6 secured to the car frame. Each hanger 10 is provided with a notch 11 above and a hole 13 below the pivot 15. In the operative position, Fig. 1, the notch 11 engages a removable pin 14 on the bracket 6 so that the cylinders and fender are free to swing rearwardly upon the pivots 15. In the inoperative position, Fig. 5, the pin 14 is passed through the hole 13. The pivots 26 are mounted in castings 29 which are secured to the frame 24 and are each formed with a web 30. In the operative position, Fig. 1, downward movement of the fender 24 about the pivots 26 is prevented by a rod 31 disposed above the webs 30, and upward movement is prevented by pins 35 disposed below the webs 30. The rod 31 is adapted to slide through holes in the brackets 19 against a spring, and the pins 35 which are carried by brackets secured to the rod 31 are also adapted to engage holes in the brackets 19. By sliding the rod 31, the pins 35 may be withdrawn and the frame 24 turned up into the position shown in broken lines in Fig. 1 in which it is locked by the pins 35 engaging behind the webs 30. A vertical guard 27 is secured to the brackets 19 and is adapted to slide on guides 28 fixed to the cylinders 7. Each piston 16 is normally held in the raised position by a spring 18, and its downward movement is limited by the abutment against a guide 21 secured to the cylinder 7 of an adjustable collar 22 on a rod 20 pivoted to the bracket 19. Fluidpressure is admitted to the cylinders 7 to lower the fender, either non-automatically by the driver, or automatically by the rearward movement upon the pivots 15 when an obstruction is met. A tube 36 pivoted to the lower end of each cylinder 7 is adapted to telescope upon a rod 37 pivoted at 38 to the car platform, being controlled by a spring 40 bearing against a nut 39 adjustable on the tube 36. A second nut 61, adjustable upon each tube 36, is adapted when the tubes move rearwardly to strike a pin 59 adjustably carried by an arm 58<11> upon a crossshaft 58<1>, and an arm 58 upon this shaft is connected by an adjustable rod 56 to a doublecrank arm 55 upon the stem 54 of a rotary valve 50. Fluid pressure is supplied to the valve 50 through a pipe 53 communicating with a pipe 41 leading from the main reservoir to the usual driver's valve 42 of the fluid-pressure brake system. The seating of the valve 50 is formed with three ports communicating with an exhaust pipe 46 leading to the driver's valve, a pipe 47 leading to the cylinders 7, and an exhaust pipe 48. In the operative position, Fig. 15, of the valve 50, the pipe 47 is placed in communication with the pipe 53. In the inoperative position, the pipes 46, 47 are each placed in communication with the pipe 48. To allow of non-automatic actuation of the valve 50 by the driver, a treadle 65 may be provided on the crank 55, or this may be connected by a rod 62 to a lever 63 pivoted on the casing of the driver's valve 42, and provided with a removable handle. To effect the application of the brakes simultaneously with the operation of the fender, the pipe 47 is connected through a check valve 50<1> with the brakecylinder pipe 44.