Care

All of the greatest commercial aids require some care, such, for instance, as the telephone, typewriter, adding machine, duplicating machine and so on.

The magnetic compasses aboard ship receive especially watchful attention, to see that they are not meddled or tampered with. As a rule the entire ship’s crew, including the youngest apprentice, knows that the compass must in no way be handled.

It should be remembered that the Sperry Gyro-Compass is a mechanical compass. Although the very best materials, design and skill enter into its construction, it is still liable to failure. Even with that possibility, it is so superior to the magnetic compass that it more than justifies its installation use. In the same way the electric light, although liable to failure, is vastly superior to the old oil lamp. The oil lamps are seldom used, yet they are carried aboard ships for the contingency which might happen. Similarly a failure of the electric or hydraulic steering gear may necessitate the temporary use of the inefficient hand-steering gear.

Fig. 33. Repeater at After Steering Station. Fig. 35. Repeater on Wing of Upper Bridge. Fig. 34. Bearing Repeater on top of Wheel-house.

Fig. 37. Bearing Repeater. Fig. 36. Repeater at Steering Station.

Fig. 38. Master Compasses on Long Run Floor Test. Fig. 39. Master Compasses under Test on Special Machine constructed to simulate the motion of a Ship in a Heavy Sea.

The Submarine, the unseen terror of the seas.

Sperry Service

HEN a Gyro-Compass is sold the interest of The Sperry Gyroscope Company does not cease. Our interest in our customer is only beginning. An experienced service engineer installs every Sperry Gyro-Compass. This engineer is also available to make the first trip with the compass in order to assure its proper operation. After installation the Sperry Service Engineers are available in every large port in the world to come aboard and inspect, clean, repair and overhaul the Gyro-Compass equipment so as to keep it in first class operating condition. A radiogram sent to any of the Sperry Service Stations will bring a Service Engineer to meet your ship. During the first year there is no charge. After this period a reasonable charge is made for the service. Such a charge is similar to that at present made by compass-adjusters.

A list of the Sper­ry Rep­re­sen­ta­tives is giv­en on the tit­le page of this book.