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: THE CRESCENT ANGLE BAND SAW. The most economical method. of doing bevel sawing in connection with' ship building operations is with the band' saw machine. The machine best adapted to this kind of work is one on which the angle of the saw can be changed, and on which the table is always level. The advantage of always having a level table 'on a band saw machine is at' ofce ap- Parent to those familiar with this class of work. The operator is not put to the disadvantage of having to handle a heavy stick of timber on a slanting table, but always has a perfectly level table to work on. Up to the present time this class of machine have been complicated iN construction and rather expensive to THE Marine REVIEW install, but the accompanying 4 oo ee simply constructed ich the table -is always level. : The machine jis The 'Crescent Machine SO, Ohio, who built the saw tabl ers and also a line of tilting table band 'saw machines, One of the principal features em- bodied in this machine is that all the parts act automatically. No spec- ial adjustment is necessary in chang- ing the angle of the saw, and the entire operation js accomplished by turning the hand wheel at the side of the table until: the pointer indi- cates the required angle on a gradu- ated quadrant attached to pedestal. This may be done while the saw is in motion, making it a very easy matter to cut different bevels on the same piece of work. The hand wheel turns easily, as the weight of the uppet part of the machine is counterbalanced. The driving pul- ley is located in the usual place, and this machine is as easily belted up as an ordinary band saw. | When the saw is tilted the table is carried back on the pedestal in proper rela- tion with it, so that the saw keeps its proper position in the saw slot. Exact .alignment is..maintained of the upper and lower guides with the saw, and the' lower guide is always held 'at the proper distance from. the under side of the table. The tension of the saw is not changed when the angle is changed. There is no complicated 'illustra- Leetonia, mechanism in the construction' of the machine, and owing to the simplicity it is less expen- sive' to build than other machines of its class. The arm is hinged to the pedestal in a rigid manner by a heavy trunnion pass- ing through both, concen-. tric with the lower shaft, making the machine as rigid when tilted as when standing erect. The bear- ings for the lower shaft 'consist of solid bushings fastened into the trunnion, and are provided with oil chambers and capillary felt, making them practical- qy self oiling and dust proof. The upper bear- ing is made with the re- 'yolving shaft running in adjustable bearings, as on the company's regular band saw. The table, slides on planed ae on the pedestal and has a steel. gl or taking up weat. The saw will tilt to S angle of 45 degrees, a stop ai ee vided at that point, and. may it a tilted forward to 4 'degrees beyon a perpendicular. A stop 1s also oe for the perpendicular position, so- manufactured by es, joint-- Ts. this setting may 'be easily accomplished' without referring to the graduated quad- tant. This stop can be instantly swung out of place to: allow the saw to pass on to an out tilt angle. The machine, in common with the company's regular line of band Saws, is _ Provided with the following features: Spring tension, counterbalanced guide bar, hollow cored-out frame, universal adjustment to upper wheel, etc. Catalog giving complete information of this machine and describing the other machines manufactured by this company will be mailed on request. THE S-M WATER-TIGHT BUNCH LIGHT: The S-M Bunch Light (patent ap- plied for) manufactured by the Seid- ler-Miner Electric Co., Detroit, Mich., was especially designed to meet the THE S-M WATER-TIGHT BUNCH LIGHT. requirements of a more perfect» pro- tection for incandescent electric lamps used in clusters wherever subjected to hard usage, water; and in places con- taining explosive gases. It is the only portable fixture fitted with a number of lamps each enclosed in an outer globe, and the whole cluster protected within one guard. Constructed upon practical ideas, extreme care and judg- ment has been exercised to make it a most substantial. and simple outfit. Unincumbered by any adjustable or