Skip to main content

Full text of "Modern Mechanical Engineering Vol-I"

See other formats

if we describe in some detail the working of a large marine engineering
establishment. We shall describe the routine of the work, including the
preparation of drawings, the circulation of correspondence, the methods
of ordering material, the issue of drawings to the shop, &c. This section
will be treated in much fuller detail than the previous sections, as, by doing
so, we shall be describing at the same time much of the routine work of
the estimating and design offices. The routine of the office having been
fixed, it must be strictly adhered to, and only departed from for very special
reasons and with the full knowledge and concurrence of the responsible
head. This is absolutely necessary if overlapping, omissions, and friction
are to be avoided.
The Chief Draughtsman.—This official has the ultimate and sole
responsibility for office discipline, and both the qualitative and quantitative
production of the work. He must see, as far as he can, that the proper time-
table is worked to, and should constantly check the progress made in the
various sections. He is responsible for the taking on of new men, and for dis-
missals, and for the taking on of men or youths from the shops. It will be
his duty to grant, or at least advise, what changes shall be made in the staff
organization at the proper time, and to investigate any grievances which may
be brought to his notice. From his room he can usually overlook the whole
office, and yet be easily accessible to callers and to men who may require
his attention for important decisions. It is usual for him to have various
forms or tables showing a time-table, progress rates, &c.
Programme Table.—A characteristic time-table for a marine-engine
office will show, against each job number, the name of the purchaser, the
size and capacity of the installation, the contract date, the date of launch
and delivery date proposed, and it will be for him to take such steps as he
thinks necessary to ensure that these dates are made possible, by regulating
the drawings and orders sent out through the order office.
Table of Drawings.—A very desirable table to be kept is one giving
the drawings and their characteristic numbers, the material orders, which
should be issued in connection with it, the date when the drawing was
finished, when traced, and when and to whom issued. Typical forms of
these are shown on opposite page.
Each table would be filled up by one of the juniors on each job, who
would also do a duplicate for his own section leader.
In addition, an abstract would be kept in the chief draughtsman's room
to show the parties with whom the sub-contracts were fixed, with their date;
also the date of promised delivery, and of actual delivery.
The time-books kept by each draughtsman usually pass through the
chiefs hands on their way to the time-clerks, so that he can scrutinize them.
Personal Control by Chief Draughtsman.—It is highly desirable
and very usual for the chief draughtsman to go round the office as frequently
as his other duties will permit, and so to keep himself thoroughly conversant
with the work in the office. It is usual for him also to work in close touch
with the heads of the shop departments in order to appreciate properly any