Page:Popular Science Monthly Volume 88.djvu/186

 What's New in Patents

��Baby's Bottle-Holder

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��N adjustable arm is de- signed to be affixed to an infant's crib or cradle. Attached to the end of this arm is a device for holding a nursing bottle. A bottle is

��placed in the clamp

���and its position may be readily fixed and adjusted. This device allows the feeding of an infant without the pres- ence of the mother or nurse.

Tool for Stripping Insulation

FOR the split- ting of the outer wrapping of an insulated elec- tric wire the tool has a laterally pro- jecting blade in the center of two pro- jections which serves as guides while it is being drawn along the wire. On the side of the instrument is a blade which strips the insulation from the wire when the outer covering has been split away.

Electrically Lighted Pencil

TO the end of a slender dry battery terminat- ing in a bulb is threaded a clamp which by means of set screws holds a lead pencil. A leaf spring switch is affixed to the wall of the battery so that the circuit may be easily made. When the switch is pressed the bulb is lighted, and the light is thrown upon the paper directly in front of the moving pencil.

����Combined Door Bell Mail Receiver

THE fulcrum which actu- ates the door bell is devised to act as a holder for mail. A spring in the bell holds the lengthened bar against the house at a considerable tension. The mail carrier pulls the fulcrum away from its normal

position to insert the mail. This actu- ates the ringing mechanism of the bell.

An Aid to the Veterinary

TWO pairs of pivoted jaws are equipped with teeth plates to cov- er the teeth of a horse. One of the jaws terminates in a set of fixed teeth, which may become engaged with a latch affixed to the other jaw. A strap holds the device in position on the head of the animal. By means of the teeth and latch, the horse's mouth may be held open during a veterinary's examination.

A Room Stove Water Heater

THE water jacket is re- versible end for end, having its greatest diameter at its middle point. The walls are thickened where the cold water en- ters the stove, thus preventing harm- ful contraction or expansion of the walls.

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