Patent GB-190717573-A (GB)
Title: Improvements in or relating to Brakes for Railway Waggons and other Vehicles.
Inventor: SCHUMACHER NATALIE
Filed: 1907-08-01
Granted: 1908-07-30
Abstract: 17,573. Schumacher, N., and Schumacher, J. E. Aug. 1. Brakes. -In an ' either-side' brake for railway wagons and other vehicles, which may be applied by hand or automatically either by the breaking of a cord or by pressure on the buffers, the brake blocks j, Figs. 1 and 2, are suspended from brackets g, i by links l. The centre brackets carry the brake shaft n and the releasing-shaft o, which carries one or more cams 7. The cams 7 are arranged to work within a member 8 slotted as shown in Fig. 2. A cross-shaft p is bolted to the member 8 and carries links q, q<1> adjustably connected to the brake blocks j. Two levers 1, 2 for applying and releasing the brakes are pivoted at z. The brake lever 1 is connected by means of links 3, 4 to the brake shaft n, which is connected by links y, x with the link q<1>. The lever 2 is connected to the shaft o by means of links 5, 6. Duplicate liners 1, 2 are fixed directly to the shafts n, o on the other side of the wagon, Fig. 5. Fig. 1 shows the brakes locked in the 'off ' position, in which the slotted member 8 is in the raised position and the cam 7 is engaged in the recess 11 thereof. When the lever 2 is raised, the cam 7 is disengaged and the weight of the parts causes the brake blocks to be applied ; the top of the slot 9 is then within a short distance of the brake shaft n. When the brake lever 1 is pressed further. down, until the cam 7 can be engaged in the recess 10, the brakes will be locked in the ' on ' position, Fig. 2. To release the brakes, the cam 7 is first disengaged from the recess 10, and the lever 1 is raised until the cam can enter the recess 11. The brake is applied automatically by a cord passing from the engine to the guard's van in a zigzag direction, first through an eye fixed to the upper part of each wagon, and then through an eye on the releasing-lever and back to a second eye at the top of the wagon. The brake levers may be similarly connected. If a coupling breaks, the releasing-levers will be actuated and the brakes applied. By attaching a cord at either end to a windlass, all the brakes can be applied at once as desired. Fig. 8 shows an arrangement for applying the brakes either by hand or through pressure on the buffers. The brake blocks are carried by double-armed levers 13, and the buffers are connected to these levers by coupling-rods 14 fulcrumed on the upper ends of levers 13 and connected together by a pin 21 with slot 22, so that the two rods can move in an horizontal direction. The buffer apparatus is put out of action by depressing a lever 1 x mounted on a hollow shaft n<1>, which acts through a lever y and slotted member 20. A hook 18 actuated by a lever 2x, both mounted on a hollow shaft n, engages with the coupling-pin 21 and secures the coupling-rods 14 out of the line of action of the buffer spindle f. The brakes can then be applied by hand by means of the brake lever 1 mounted on the inner shaft o' and acting through a link 17, and levers q, q<1>, which in this form are not connected to a bar p as in Fig. 2, but are joined to the slotted lever 8 on each side of the vehicle by a pin q<3>. The slotted lever is released as before by the cam 7 on the shaft o through the releasing lever 2. Two blocks may be applied to each wheel.