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September, 1912 THE MARINE REVIF W < 280 for several months of the exact work the cost entry is always added, be- with the estimates, as described fur- done by each mechanic. This record cause revisions are constantly being ther on. was checked daily by one of the es- made to keep step with changes in timators, and notation made of the the wage schedule, improved meth- Material Cost File surroundings and circumstanc s un- ods of doing work and increased effi- eu ; oe : : : : stor e . der which the work was done. The ciency of the working force. s the storekeeping is done by a separate department having offices in a separate building, it is inconvenient oo Mee Malan _ for the estimators to obtain the cost TIME TRADES ESTIMATE || QUANTITY KIND EST. COST of raw material direct from the stock Suop- K. aes 22" IRON Are @ °18 cies ledgers; and a = material cost file im PLATFORM. 466 lps. @ -06 27 |96 || 50-L85. | Wror JreEL @ .02 00 1 rae t : SHeP.D". 250- [Bs. io Plate @ BlaG the estimating department, therefore, CasTINGs For STANCHIONS. 35 las. @ -10 3/50 || 216- Las. |3"~ oe 02 tee saves time. Material costs: are en- SsHop-"C" Evers ANO Bouts ter a3. a ue ; CurTINg ANO THREADING 4-Pieces 2z Pre 43- LBs. | 12" Brass Are ofr @- 6 | 88 pied Ee holt) cards, as @ .40 1 |60 || 84- Les. | |" " 48 Fr. @ in 13 | 28 shown in Fig. 2. These costs are re- Beeaxing & Maxing-8 Screwed Joints @-20 5 60 || 35-65. semar Brass oP Welt For 3\as vised monthly, if changes have oc- ' 0 . ' ae = See. oe : Shrccieaieoua: Lloo curred. When a large quantity of S-Hes.| 3x3" ANGLE Frame @ -96 4 | 30 ToTAL For One 510 | 39/46 4 certain kind of material is needed, I2- Hes. Feet For 2-PirE Stancions @ 1-22 14 | 64 w © BOTH Sines) 9-7 8 OZ Suop -"Me" | the state of the stock in the store- 4-Hrs. couar ncaa Tuse : 80 hy rect. house is investigated at the time the - Ww : 0 N : : Lo ya hag Og ee Sad 5 <i SHoP K 27.96 x -45 2 |59 estimate is made. If the quantity is lee Fir SEMAPHORE To New Location &secure| , I! | 20 5 c.- - 60 x ae 2 ye small it is assumed that the stock ae pe ar TwarP soinecniony 5 | 60 : "Gen 33. oe 50 16 | 80 on hand will suffice. If material is 8-Hes.| 3-Lasorees To HANDLE Heavy weigurs 6 | 00 » |"La"-- 6.60 -- a i, on hand which does not exactiy mect fetes as ee ise Ms for Soak aoe 102/04 the requirements, but which will answer the purpose, the expediency of using it instead of buying especial- : ly for this job is investigated, so as Fic, 4--Front oF Carp to keep the stock down to the low. est limits possible. data were then classified and an- Unit costs as well as unit times aie Stock lists of old salvage material alyzed. The maximutn, minimum and usually. recorded, because the esti- - recovered from other tepair and alter- average costs of each unit were then mator can compile an estimate more ation jobs are also kept Qn hle, so entered on 'the cards; Unit. costs "quickly "from the former than trom that the use of such material may be wele cbtained in this manner for: the latter. The unit cost is merely specified wherever practicable. The cutting and threading pipe o: all an extension of the unit time multi- die books. showing what fittings can sizes, 'making and breakiny "jomts, plied by the rate of pay of the me- be obtained as drop forgings are also both flanged and screwed, removing chanic or gang doing the work. A 02 file in this office. and re-setting plumbing fixtures and brief note giving the source from As many estimates can best be valves oi all descriptions, lead lining piping of all sizes, and the other in- numerable details entering elmo No. 825229... ESTIMATE am oe ey BIRMINGHAM | 10 LET C,O.let.4/7/12. Co SHIP ITEM NO ETTER plate cud ee - Build semaphore stands on after side of bridge and instell these unit costs even a ae olvel Senennores on same. The semaphores are now installed on the : imexperienced estimator can now bridge and on account of small size of bridge it is too much build up a reasonably accurate esti- congested. mate. J. 0. No, J.0.worpinc Build semaphore platforms at after : : end of bridge, port and starboard, as shown on afm. plementary. time, «aay Made plan 30-E-204. Re-locate signal iockers and. in this manner differs chiefly from a after eee rail to suit new ee stop watch time study in that it in- : | | dicates the performance which can : ae eG 3 be expected on a future job under the existing condition of organiza- "ESTIMATE tion and management. As it is the object of the estimator to build up cea 196-00 : the anticipated cost of a job from INDIRECT 102.00 data representing actual working con op ae 56 60 ditions in the plant, time 'studies : made in this manner are much more deus 377.00 valuable to him than 'scientific stop -- tme 12 days : watch time _ studies. ee | TT] nsifedur MATER ApHEBULE yoseo | It will be noted that a column is - provided on the card shown in Fig. . Fie; 4-- RACK oF Carn 1 for the cost of material as well as of labor. The material column is not which the unit was obtained, that made on the weight basis, a file has generally filled out, and is provided is, the previous job, time study, or been compiled of the _ weight OT 2 only for unit costs where a great route sheet data, is. entered wherever large number of fittings and standard variation in the market price of ma- possible, as this information is very material entering into ship construc- terial is not likely, as a separate ma- valuable in connection with the in- tion. This file is especially useful terial cost file is kept. The date of vestigation of costs that do net agree for estimating the cost of castings,