Rock Drill Tests
pp. 59-60 · Read in the full issue
AN interesting demonstration of drill operation was undertaken last year over a period of five months by the El Potosi Mining Co. at Chihuahua, Mexico. The co. invited leading drill manufacturers to enter suitable drills for demonstration under actual working conditions, as a result of which Messrs. Gardner-Denver Co. were advised that their machines had proven best suited to the needs and requirements of the co. in all classes of mining work.
Careful records were maintained throughout the period by the El Potosi engineers on drilling speeds, air consumption, and wear of parts, and the figures obtained by the Gardner-Denver machines were such, that the co. placed orders for 100 model S-55, 20 model H-81, and 15 model D-79 drills complete with suitable spares.
For many years Gardner-Denver drills, stopers, pavement breakers, drill sharpeners, and portable air compressors have been in constant demand throughout Australia and the Islands, and :n all ways have proven their reliability, suitability, and ability to stand hard wear.
Messrs. Noyes Bros., of Sydney and Melbourne, are sole agents for these lines manufactured by Gardner-Denver Co., and will be glad to supply all details and technical information.*** Mr. and Mrs. C. Day, of Otomata plan tation in the Abau District, Eastern Papua, arrived in Sydney from Port Moresby by the Macdhui on January 24.
While Mr. Day is on leave, Mr. W. E.
Bellingham will act as manager at Oto mata.
Miss Gwen Guy, daughter of Rev. and Mrs. A. W. Guy, of the Methodist Mis sion, Bunama, Papua, arrived in Sydney by the Macdhui on January 24. She later departed for Victoria to enter Epworth Hospital, Melbourne, where she will undergo training for a nurse.
Mr. and Mrs. C. E. Sparrow, of the Methodist Mission at Salamo, Papua, arrived in Sydney by the Macdhui on January 24 on five months’ furlough.
Before her marriage in December, Mrs.
Sparrow was Miss Gladys Thomas. She was a kindergarten teacher at Salamo, where her husband, who is an architect, was giving technical instruction to the mission natives.