The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

224 day workers. The table which follows gives the detail information obtained from the test: COMPARATIVE COST OF SCALING OUTSIDE UNDERWAiER BOT- TOM BY DAY WORK AND BY PIECE WORK. Piece ~ Day Work- Work- ers. ers. Total surface scaled, square BEGG Ai o ik ete ee ee eRe oe 6,235 2,229 MGtal COSE 24 ei sass oeee $112.23 $52.50 Cost per square foot... 6.55. $ 0.018 $ 0.024 Total number of hours worked 274 175 Average surface scaled per man per hour, square feet 22.76 12.703 Average surface scaled per man per day of 8 hours, Sd @ate Tech cos eis os 182.04 101.623 Average amount earned per anan per hours v7. s.8% ss 3: $ 0.4096 $ 0.30 Average amount earned per man per day of 8 hours..$ 3.2768 $ 2.40 I observed this work closely while it was going on, and immediately saw one important difference between a _ day worker and a piece worker. In scaling, a patch of scale is frequently run into which comes off very easily. When such scale is encountered, by holding the ham- mer at a slight angle, with the surface to be scaled, the scale can be removed very rapidly. The hard scale requires that the hammers be held at nearly right angles to the surface to be scaled. A piece worker, when he encounters the soft scale, immediately changes his meth- od of scaling, and, as it were, "scrapes" off the scale, doing this very rapidly. The day worker continues scaling in the same manner as for the scale that is hard, and unless a close examination is made, it would not be noticed that the scale could be removed more rap- idly. Ohe. test. was not further than that given continued any in the table - this required less supervision. THE Marine REVIEW . above, because it was easily seen that the work could be done at considerably less cost by piece work, and, moreover, The most rigid inspection, however, is made of the work done by piece work when it is being measured up, and in several cases the piece workers have been made to go over their work again. Since they have learned that unless the work is first-class in every respect, it will have to be gone over, no trouble has been experienced in the character of the work turned out. Maximum Results Expected Obtained. From the above table it will be seen that an average of 182 sq. ft. in eight hours was obtained. It will be noted that in fixing the piece work price from the observation of unit times, it had been calculated that 200 sq. ft. a day could be obtained. The average given above shows the accuracy of the cal- culations. A few men, however, ex- ceeded slightly the amount expected. The record of the highest paid piece worker is of interest and is given below. Record of Best Piece Worker. Number of days worked..;..........; 18 Number of square feet scaled..... =. - 3860 TPotal. wages for above... 6 ole. cis $ 69.48 Average wages per days... cn. $ 3.86 Average square feet scaled per day of S MOUS Cu eae eee les 214.4 Average square feet scaled per hour.. 26.8 Average: wages per NOUP es. sos. $2548 - The above covers three distinct classes of work, as follows: (a) Outside shell plating from water line to bilge keel. (b) Bottom plating, bilge keel to keel. SCALING SHips By Piece Work. June, 1910 (c) Hold, shell plating, and bulk- heads, including frames, angles, butt- straps, etc. The record on each class of work js as follows: Bottom Outside below . Shell. Bilge. Hold. No. of days worked.. 8.5 7 a5 No: .sa.- tt. scaled .....2010.0.,. 1252 598.0 Average scaled per day. 236.5 178.8 239.0 Average wage per day..$ 4.25 $ 3.22 $ 4.39 Average ft. per hr.scaled 29.5 22.3 29.8 Average wage perhour.$ .531 $ .402 $ 537 From the record of the highest paid piece worker, it will be seen that the earnings amounted to $3.86 per day, while the average earnings of the piece workers amount to about $3.25 per day. The maximum wage assumed in fixing the rate was $3.60 per day, so there is close agreement between the results ex- pected and those obtained. -- TORPEDO BOAT DESTROYER | PARANA. The official full-speed trial of the torpedo boat destroyer Parana, built for the Brazilian government by Messrs. Yarrow, of Glasgow, took place April 17, on the Skelmorlic deep water measured mile at the mouth of the Clyde,, when a mean speed of 28.736 knots was obtained during a continuous run of three hours, the mean air pressure being 2 in. The above speed was obtained carrying a load of 100 tons, and it may be inter- esting to note that the contract speed of this vessel carrying this load is 27 knots. The Parana is the ninth of the ten destroyers ordered by the Brazilian government from Messrs. Yarrow. The first seven are now in Brazil, and the eighth will be leaving the Clyde short- ly. The dimensions of the Parana are: Length 240 ft., beam 23 ft. 6 in. Steam is supplied by two double-ended Yarrow boilers of the latest type. In these Brazilian destroyers, strength of construction and good seagoing qualities were deemed--as in the Brit- ish navy--of even greater importance than high speed, as both the British and Brazilian destroyers have a guar- anteed speed of 27 knots. The city engineer of Tacoma, Wash., has planned for the erection of a steel vertical lift bridge on Eleventh street, to span the Puyallup river, over which direct connection will be made with the docks and machine shops of the Chicago, Milwaukee & Puget Sound railway and the entire tide flat district. In the type of bridge pro- posed, the middle span may be raised but not opened or swung. Pre OT NFS ef NE A OR