Page:Popular Science Monthly Volume 88.djvu/614

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��Popular Science Monthly

��Mark Your Golf-Ball with Your Initials

���A MARKER used for

��stamping the in- itials of the own- er on golf-balls is shown in the il- lustration. Either t w o, three, or four initials may be marked. The type is inked by rolling the pad over it ; then the lever is pressed firmly down, the middle finger in the ring giving sufficient purchase. If desired, the ball may be marked in two or more places.

The marked balls are very useful in preventing disputes as to ownership on crowded public courses, but also serve to clear up doubtful points as to owner- ship of lost balls and the like on private grounds.

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��Interchangeable Motor-Car Grease-Capsules

IL holes on automobiles are a thing of the past and the later screw-down grease-cup, now universally used o n automobiles, is apparently doomed to oblivion because of an ex- ceedingly simple and efl:ective device in- vented recently by an Englishman. It consists of a collapsible lead capsule, which is screwed on to parts that need grease lubrication, in place of the grease cup. Finger pressure on the capsule is sufficient to force grease into the bear- ing or part to be lubricated, and when the capsule is emptied a new, ready-filled one is screwed in its place. The old one is thrown away. No dirt, no grease, no loss.

The screw-thread, which takes the capsule and keeps it firmly during trav- el, is fastened to the part, instead of the grease-cup. It is made of brass and forms a grease-tight joint. Most of the parts lubricated by grease-cups are out

���of sight on the automobile, but even where visibility is desirable, the collaps- ible tubes can be used. It would be nec- essary to provide them with light brass or plated caps, where they are in exposed positions.

New Device Distills Water for the Home

FOR the house- w i f e who wishes to make sure that her fam- ily is d r i n king pure water, a new water-distiller, re- cently placed on the market, should prove ac- ceptable. The de- vice is made of copper and is lined throughout with tin, as this

metal is chemically unaffected by distilled water. The still consists of three drums, which comprise the boiler, the reservoir for distilled water, and the condensing chamber.

To obtain distilled water, the boiler and the cold water chamber are filled, and the still is placed upon the stove. The distilled water falls into the reservoir through a water seal. This seal is an important improvement, because it confines the steam from the boiler, thus increasing the pressure in the condens- ing-chamber and gi^■ing twenty-five per cent more condensation for the same amount of heat. The distilled water may be drawn off at any time through a faucet, the water in the cooling- chamber flowing into the boiler to take the place of that drawn off*.

Deep Center-Punching

IN the boiler shop, where heavy cen- ter-punching is done, as on heavy tank and boiler heads and plates, the layer-out may save time and physical energy by the use of a center-punch that fits into a light pneumatic calking ham- mer. This can be easily made from any of the various air-tools that have been discarded.

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