Popvlar Science Monihhj 



Sanitary Kneading Board 



ROLL of pa- 



A 



per or parch- 

 ment is placed at 

 the head of this 

 sanitary kneading 

 board, and a sheet 

 is drawn over the 

 upper surface of 

 the board when in 

 use. When the 

 work is done, the 

 paper is torn off 

 and a new sheet inserted. 



This device saves the work of clean- 

 ing the board after kneading bread or 

 cutting meat, and is thoroughly sani- 



tary, 



Self-Feeding Soldering Iron 



ASELF-FEED- 

 ] 



j-s-7i--f*-?.-c:-;r 





ING soldering 

 iron is made with 

 a tube or passage 

 extending from the 

 head through the 

 ■^haft and handle. 

 A reel, containing 

 a large amount of 

 soldering wire, is 

 i^^"-r.^^A-y\ niounted above the 

 handle, and the 

 wire passes through the passage in the 

 iron to the head of the tool, where it 

 is melted by the heat and flows to the 

 point to be soldered. 



A Pad and Pencil Holder for 

 the Telephone 



LTHOUGH 



the memor- 

 andum pad is a 

 necessity for the 

 telephone, the ordi- 

 nary pad is apt to 

 be lost or mislaid. 

 The accompany- 

 i n g illustration 

 shows an attach- 

 ment consisting of a single plate of metal 

 curved around the tclejjhone standard. 

 At its upper end it is fitted with a pencil- 

 holding clij), and its lower end is ex- 

 tended forward to contain a pad. The 

 fact that the entire attachment is made 

 In one piece makes it indestructible. 



A 



159 



Folding Tooth Brush 



THE handle of 

 a tooth-brush 

 is made to form a 

 casing which will 

 form a cover pro- 

 tecting the tooth- 

 brush when the lat- 

 ter is not in use. 

 When in use the 

 brush is held in its 

 extended position 

 by a spring, which 

 is locked by a jin, 

 and the casing forms a handle. 



Apparatus For Cleaning Hair Brushes 



D E \' I C E 



A 



for cleaning 

 hair brushes is 

 made with a comb 

 to remove hair and 

 other foreign sub- 

 stances. A wick is 

 kept moist by 

 means of a moist- 

 ening tray filled 

 with a disinfecting liquid which cleanses 

 and imparts a pleasing odor to the 

 bristles. A tray at the bottom receives 

 the foreign substances, which have 

 been caught by the comb. As the brush 

 is passed over the device, the bristles 

 come in contact with the moistened wick. 

 Through the friction the liquid is effect- 

 ually distributed through the bristles in 

 the form of a fine spray. 



Combination Sad-Iron Heater and 

 Cooking Utensil 



SHEET me- 



A 



tal body, of a 

 pyramid form, is 

 ])laced upon a met- 

 al base plate which 

 rests over the 

 flame. .\n inclined 

 rack allows the sad- 

 irons to be leaned 

 against the pyra- 

 midal body of the heater. L'pon the top 

 rests a suitable oven, which may be used 

 for cooking. Heat ascends inside the 

 sheet iron body, thus keeping the sad- 

 irons warm, and also heating the top 

 and the oven. 



