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Equipment Used Afloat (Continued from Page 39) of this cup entirely satisfactory. The value of proper lubrication cannot be over-emphasized. To _ ob- tain proper lubrication three elements are involved: 1. Proper care on the part of the operating engineer; 2. Efficient mechanical means for dis- tributing the lubricating oil in cor- rect amount to the parts requiring lubrication; 8. A good quality cor- rectly prepared lubricating oil of the proper ingredients and weight for the particular kind of lubrication it is called upon to perform. Each engineer must consider care- fully the practice of running water on crank pin bearings and eccentric bearings to keep them properly cool. In our modern development along all lines the science of lubrication has not been neglected. It is, therefore, possible to keep bearings cool with the right kind of lubrication, with less wear, without water than with it. When using water it is difficult to determine just how hot the bear- ings surface may be and this is a source of danger. The wiper cup described in this article and illustrated is not patented and its use is open to any ship or any engineer who has had any diffi- culties with his lubrication due to the causes mentioned above. Further in- formation in regard to this new type of wiper cup may be obtained by communicating with the editor of MARINE REVIEW. New Boiler Gage Light Resists Vibration A boiler gage light, consisting of a tubular reflector with a bayonet at- tachment to the socket flange, has been designed and is being manufactured by the Westinghouse Electric & Mfg. Co. A compression spring serves to maintain the connection and -to hold the lamp in place, so that neither the reflector nor the lamp can loosen un- der vibration. The design of the boiler gage light permits mounting on the guard rail of any boiler water gage or on the end of a %-inch conduit used to carry wiring to the reflector. This mount- ing may be accomplished by the use of a screw driver. When it becomes necessary to change the lamp, no tools are needed to remove the reflector because one turn of the reflector disen- gages the bayonet attachment, and the lamp can then be screwed out of the standard socket. The reflector is made of heavy brass tubing with a slot in one side to 52 throw the light on the water gage only. The reflector is easily adjustable for any desirable height and _ the mounting brackets are arranged to accommodate a wide range of posi- tioning of the guard rods with relation to the gage. Four feet of two-way A NEW BOILER GAGE LIGHT WHICH RESISTS VIBRATION conductor cord and an _ attachment plug are furnished regularly with the boiler gage light. A standard tubu- lar mazda B lamp with T-10 bulb should be used. New Type Mortising Tool Electrically Driven Every self contained shipyard or ship repair plant must have its joiner shop in order to carry out the very important wooden construction in outside and interior finish on board ship. It is therefore of interest to des- cribe a new portable electrically driv- en lock mortiser developed by the Wappat Gear Works, Pittsburyh. This novel device, it is said, can be operated by inexperienced men and cuts the time for mortising on doors and windows to one-thirtieth of the time previously required. With this motor driven mortiser the ordinary mortise can be cut in one minute. The outstanding feature of this ma- chine is its simple construction and MARINE REVIEW—June, 1927 ‘adjustable ability to be carried from place to place wherever it is needed. This electric device is carried to the scene of the operation and clamped on the window or door in which the mortise is to be cut. These clamps are self- centering and have wood face mount- ings to prevent defacing of doors. An collar governs the size of the mortise and enables the ma- chine to be used on all sizes of jobs. The cutters themselves are of the two-lipped type, of high speed steel and are provided with spindles for clearing away the chips. Easy running of the machine is assured through the use of a flywheel which governs the speed of the cutter. Ample protection is provided for operator. All gears are enclosed and the driving belt is well guarded. This is essentially important due to the fact that the design of the ma- chine enables inexperienced men _ to ELECTRIC MORTISER CUTTING MORTISE ON DOOR operate it, thus affecting a _ great saving in expense and _ eliminating the necessity of training men to per- form the work. This portable machine is driven by a Westinghouse one-eighth horse- power motor, is sturdy and compact in construction and has a wide variety of applications in industry. It is particularly useful in apartment, of- fice building and shipyard work. Ship Autos by Water A shipment of 14,288 fully as- sembled automobiles from Detroit during the period from March 15 to April 30, is reported by the Nicholson Universal Steamship Co. The gross freight revenue during this period amounted to $166,346. Shipments were made mostly to Cleveland, Buf- falo, Chicago and Milwaukee. The City oF RAYVILLE was allocated to the Roosevelt steamship line and sailed for Australia May 10.