49

D.—7.

EXHIBIT No. 37. Westinghouse-brake Test made at Newmarket on the 20th August, 1907. Held on l-in-40 grade. Train-pipe charged to 701b., and a reduction of 351b. made. Train consisted of 1 empty 30 ft. brake-van, 1 Class X wagon partly loaded with goods, and 3 Class L and 1 Class Lα wagons loaded with coal.

* Train-pipe. Notes.—All brakes applied. At fifty minutes after brakes applied the whole of the brakes on above vehicles came off together, and vehicles moved down-grade on to two bogie wagons placed on grade for that purpose. The brake-van was taken from workshops yard after being painted, but brake not overhauled lately. The wagons were taken out of traffic at Newmarket Station for the purpose of this test.

EXHIBIT No. 38. Particulars of Westinghouse-bbake Trials held in New South Wales in 1891 by a Board appointed to inquire into the Efficiency of the Westinghouse Continuous Brakes for Goodstrains. (New South Wales Parliamentary Paper, Second Session, 1891, Legislative Assembly.) Test for Brake Leaking off. On l-in-30 grade, engine made full application of brake, and then cut off.

EXHIBIT No. 40. John Lambert Taylor. Born September, 1881. 1900, April 15.—Casual junior labourer, Newmarket. ~ ~ 13.—Cleaner, Auckland. 1901, August 3.—Examined and passed for spare fireman. 1905, May 13.—Examined and passed for spare driver. 7—D. 7.

Vehicle. Pistontravel. Pressure in Brake- 5 10 15 20 25 30 35 40 cylinder at mins. mine. mios. mins. mine. mine. mine, inins. reduction. 45 50 iniiis. mins. In. 64 lb. 45 Ib. 42 lb. lb. 33 25 34 25 37 25 42 30 37 24 37 24 33 27 lb. 28 ib. 21 lb. 19 lb. 17 lb. 15 lb. 13 1 170 : sis ,3373 , 4949 .a 7334 4 81 81 si 28 ■28 26 22 22 24 22 22 21 21 21 22 19 20 22 19 19 20 17 18 18 17 16 18 15 Iβ Iβ 14 14 17 13 13 12 11 11 18 brake off. Ditto. I 47 48 52 45 52 35* 42 42 47 40 42 45 .3649 4

Number of Minutes after Application of the Brake. Pressure in Reservoir of Van. Pressure in Brake-cylinder of the Van. Remarks. 0 Lb. 67 Lb. 62£ Pressure in train-pipe and reservoir before application of the brake was 80 lb? 18 32 39* 42 ~ 47 50i 62 65 77 80 83 40 25 35 25 Brake of one wagon leaked off. Brakes of two wagons leaked off. 19 13 14 4 0 0 0 0 First four wagons moved a few inches down-grade. 11 9 Gauge stuck at 9 lb. Train moved down-grade to engine.