| Show contract mine and tunnel operations by walter fitch jr inc the mine and tunnel cont contracting bactin firm of walter fitch jr inc was organized in 1915 during the first year of operations tile the company lid did feet of work in 2368 machine lays days or an average advance in every heading of about eleven feet per day in the second year operations continued to expand rapidly and the company has now contracts for raising and drifting in the iron blossom consolidated mining com banys no 1 1 shaft shaft sinking and ana drift ing for the colorado consolidated mines company drifting raising and enlarging the main working shaft odthe of the chief consolidated soli dated mining company drifting for the mining company and for the empire mines company employed in this work are about men supervision the amount of supervision on oil the different jobs varies according to the number of headings worked vor ked the following table will give an approximate idea of the amount of supervision found necessary in mines operating a single heading day shift machinek machine man acts as lead man in mines operating two or three headings one foreman in mines operating from three to six headings two shift bosses on eacil shift shaft sinking one foreman and a machine man on oil each shift is selected as a leadman adman lc tunneling one foreman and a shift boss on oil each shift in addition to the above stated supervision there is the superintendent and man mail ager in general charge of all operations chief consolidated force on oil account of the special world work and skill required in connection with the enlargement of the chief consolidated shaft it was found necessary in this case to organize an entirely separate force with a boss on each of the three shifts and a special foreman in charge directly responsible to the manager the difficulty with thia piece of work was that the shaft was enlarged without interfering with the operations and hoisting of the mining company through this shaft A main office is maintained tor for the keeping of costs and records the records are telephoned to this office each day clay from every job consisting of the daily time footage number of cars mucked and the amount of powder and other supplies used from these figures the costs are a r 0 computed graphical records are drawn and averages are arc made daily of every mans operations scale of wages the employees are paid fifty cents per day more than the prevailing company account scale of wages the headmen bosses and foremen receive a bonus based on tile the monthly average advance per machine shift of their particular operation in addition to their regular salary or wages the company as a rule furnishes all the supplies and drilling equipment on its it different contracts the types of machines used are the water hammer drills with the anvil block type of chuck tor for drifting and tunneling the air hammer sinkers for sinking and the for raising the advance in drifts has averaged about eleven feet per day in shaft sinking from four to eight feet per day the eight foot advance in shaft work is however rather unusual although in sinking the homans ville shaft in august 1916 an average advance of feet per day clay was made thus establishing a worlds record the best monthly average per machine day working two shifts made in drifting is feet made during the month of march 1917 |
