This section is from the "Modern Machine Shop Construction, Equipment, And Management" book, by Oscar E. Perrigo. Also see Amazon: Modern Machine Shop Construction, Equipment, And Management.
At the end of the week the cards are dropped into a box marked "Day Time," and placed under the "Out" case, and the timekeeper takes them up when leaving cards for the next week, and after computing the time he fills out the amount due each employee and enters it in his roll book. The time cards may be had in all colors. In this case we will use straw color for the day time cards, and for job time a different color for the employees of each department using the same clock. There should be a sufficient number of clocks to allow one clock to each hundred employees, or less, if the distance from their department renders it necessary to avoid too much loss of time in registering job time.
To ascertain the proper distribution of the time among the different classes of work, or different parts of a machine, or even the different operations on a single part, job cards are used by the workmen in addition to the day time card. They are of a distinctively different color and are made out by the foreman under whom the employee works. These cards give at the top the workman's name and number and specify the work he is engaged upon. He "rings in" this card when he begins work on a job and "rings out" when the job is completed. The foreman sees that he is supplied with a new card to "ring in" when he "rings out" the former one.
When a man is running two or more machines on different orders there are as many separate cards as there are order numbers, all "rung in" and "rung out" as if there were but one. The time clerk divides the time accordingly. If one of these machines is much larger than the other and requires much more of a man's time, as for instance, a 6o-inch and a 24-inch planer, the job on the larger machine must be charged in proportion. It sometimes happens, however, that in the above case the smaller planer, if on short cuts, will consume the more time. This is a matter for the foreman to determine and advise the timekeeper. If a workman is on a job from day to day he uses the same job card, dropping it into the box marked "Job Completed" on Saturday night, and receiving a new job card Monday morning.
There might be still another box marked, "Job Continued," but the number of boxes would, perhaps, cause confusion. In our case this is avoided by the foreman's stamp, "Completed," when the job is finished. If the job is completed during the day the workman will have the foreman stamp his job card before dropping it in the box. The object of this arrangement for job cards is that the timekeeper may compute the time shown on them and ascertain if it aggregates the amount shown by the day time card by which he is paid. The job time cards are kept in racks or cases similar to those used for the day time cards, the placards over them being lettered, "Job Time Only. IN." and "Job Time Only. OUT".
The timekeeper transfers the amounts on the job cards to the job time book, which is ruled up as in Fig. 175. This book may be used as a monthly instead of a weekly account if desired. This account of job time will be a check against the foreman's account given on the material and cost card which goes with the work through the different departments, and is finally turned in to the cost clerk, who may also compare it with the storekeeper's account of stock, material, and purchased parts issued and charged to the different departments.
More or less spoiled work will turn up from time to time; some parts or articles of stock or material will be lost and cannot be accounted for; some that will be found defective; and some parts rejected by the inspector. To replace these will require separate consideration and treatment from the routine manufacture. In the case of the manufacture of small parts in quantity, to be turned into the finished parts storeroom, the count, as they go from one department to another, will be lessened as parts are spoiled or rejected and the cost per piece will be correspondingly increased. But in case a certain number of parts are required to be made on an order we must devise a means for the issue of stock and material to replace that defective, lost, spoiled or rejected, and under proper safeguards to prevent misuse. This will be by a special requisition, signed by the foreman of the department and approved by the assistant superintend-dent, specifying what is wanted and the reasons why it is required, that is, to replace defective material, spoiled, or rejected parts, etc. This requisition should be made in duplicate, one copy retained by the storekeeper and the other filled out with the costs and sent with the articles to the department requiring them. Fig. 176 is the form to be used.
Fig. 175. The Job Time Book, size of Book, 9 x 12 in. Folds on center line.
Fig. 176. Size, 8« × 11 in. Color, Bright Red.