Identifier: transactions05cana (find matches)
Title: Transactions
Year: 1895 (1890s)
Authors: Canadian Institute of Mining and Metallurgy
Subjects: Mineral industries Mines and mineral resources
Publisher: Montreal (etc.)
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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4 inches, 18 inches long, and 14 inches apart. Fig. 10 shows the head frame used in sinking an inclined winzewith a bucket, the posts are wedged solid to the rock so that no bracingis required. Fig. 11 shows a very strong shufe placed on the 300-ft. level todraw ore from the 250-ft. level stopes. Similar shutes are used in theKnob Hill at the bottom of the shafts from the surface quarry. Fig. 12 shows a plan and elevation ot an underground station inthe Knob Hill from which a vertical shaft over 200 feet deep has beensunk. The frame is made made of 8 x 8 inch and round timber; theposts of the gallows frame are 12 inch square timber, no braces arerequired as the tops rest against the rock. The station is lagged with i Mine Timbering in the Old Ironsides and Knob Hill Mines. 443
Text Appearing After Image:
444 1^^^ Canadian Mining Institute. 2X12 inch plank. The foundations are mudsills with two long sillsbeneath the hoist. The chamber is dry and no better roof is required. Fig. 13 shows a hoisting arrangement used on the surface of KnobHill for loading ore into the railway cars direct from the surface. A small car is used running on a 30 inch gauge track, and a smallhoist run by air pulls it up the incline, when at the proper place itdumps its load automatically into the moveable shute below whichthrows it into the railway car standing alongside. The whole hoist restson mudsills and can be turned to face different parts of the bank fromwhich the ore is being taken. It is steadied by guy ropes reachingfrom the top to any convenient anchor. On the whole very little timber is used in the Knob Hill, a fewtunnel sets being practically all outside of the winzes, shutes and under-ground station. The tunnel sets are 10 feet wide by 7^ feet high,California sets. Timber used in the Knob Hill may

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