238 



THE INDIA RUBBER WORLD 



; February 1, 1916. 



PHONOGRAPH DIAPHRAGM WITH RUBBER RING. 



The old method of holding the mica diaphragm of a phono- 

 graph sound box in place possessed many inherent defects. For 

 instance, the invariable rubber gasket usually held the delicate 

 sheet of mica rigidly, thereby depriving this vibrating membrane 



of complete efficiency. The new idea, shown in the accompany- 

 ing cut, consists of molding a ring of rubber stock ground the 

 mica disk and thus vulcanizing it in a mold. The result is in- 

 creased tone production and the elimination of troublesome 

 mechanical noise. [Wm. Eggers & Sons, Brooklyn, New York.] 



THE THRESHER TRENCH COAT. 



This overcoat is especially adapted for war purposes and has 

 received the commendation of the British War Office. It is 

 double - breasted, 

 with an extra high 

 collar, and while 

 waterproof and 

 windproof, it com- 

 bines warmth with 

 lightness in 

 weight. A chrome- 

 dressed sheepskin 

 lining is used or, 

 if preferred, a de- 

 tachable "Kamel- 

 cott" or detachable 

 sheepskin lining is 

 supplied. Knee 

 flaps and saddle 

 gussets are pro- 

 vided for mounted 

 officers. [Thresher 

 & Glenny, Lon- 

 don. England.] 



THE ••GNIDROC" 

 COAT. 



.\ somewhat sim- 

 ilar waterproof overcoat, especially suited to war uses, called 

 the "Gnidroc," is shown in the second illustration. This coat is 

 made in the raglan style, and comes in three weights, with or 

 without fleece lining. [Geo. Cording. Limited. London, England.] 



THE "SANDERSON" RUBBER TRIPOD SHOE. 



In photography, after the correct focus has been obtained, the 

 slightest movement of the camera will necessitate a repetition 

 of the entire operation. When a tripod is used on slippery 

 uriiund or polished floors. 

 iiK-rely taking hold of the 

 ball and tube, or inserting the 

 plate-holder is apt to cause 

 the tripod legs to slide, thus 

 upsetting the camera. The rubber tripod shoe here shown 

 presents a simple means by which all danger of these accidents 

 may be avoided. It is made in three sizes, and will stretch to 

 fit tripod feet of any shape. When not in use it may be left in 

 position or removed by rolling back the rounded edge. [The 

 Altrincham Rubber Co., Altrincham, England.] 



NUT CRACKING DEVICE WITH RUBBER KINGS. 



We used to crack nuts in the kitchen, with a flatiron between 

 ur knees, and the floor was apt to be strewn with shells before 

 we finished. A way to overcome 

 this difficulty is presented in the 

 novel nut-cracking device here il- 

 lustrated. The bowl is made of 

 ^^ highly polished hard wood, with an 



- - S \ ^^S— lljtPf \ attractively plated steel anvil cen- 



^1^ V ^^^^^[n^^Y J ter, and a hammer also plated to 

 match the anvil, the 

 wooden hammer handle 

 being finished the same 

 as the bowl. 



This outfit is intended 

 for use on the finest 

 dining room table, and 

 the hammer is encircled at each end with rubber rings, which 

 overcome all danger of 'scratching or marring any polished sur- 

 face upon which it may be laid. [Parsons Nut Bowl Co., Indian- 

 apolis, Indiana.] 



THE "UNIVERSAL" TUBULAR BED. 



An improvement in the air or water cushion beds so useful in 

 hospitals and sick rooms is the tubular bed that is illustrated 

 herewith. Instead of only one compartment, this bed is com- 

 posed of ten separate tubes. The advantages of this construction 

 are that the patient's comfort is more readily secured, as the 

 tubes can be regulated so as to relieve pressure on the body; 



additional tubes may be added su any part of the body can be 

 raised, or the tubes, even when filled with water, can be inclined 

 to any desired angle, while the ordinary water bed can be used 

 only in a horizontal position. 



.\n important point of superiority that is claimed over the 

 old form lies in the fact that in case of injury oj accident to 

 any section, the entire bed is not put out of commission, the im- 

 perfect tube simply being withdrawn and an extra one inserted, 

 without disturbing the patient. [The Altrincham Rubber Co., 

 Altrincham, England.] 



THE "UMBRELLA TIDY." 



In order to keep an umbrella cover from fraying at the edges, 

 ided that the ribs be fastened firmly together when 

 it is closed. A new de- 

 vice for this purpose, 

 made of ebony-black 

 rubber that can be easily 

 slipped over umbrella 

 handles of all shapes, is 

 called the "Umbrella 

 Tidy." Once adjusted, 

 it remains in place, ready 

 for use when desired. 

 As shown in the accom- 

 panying illustration, a 

 needed to 



Open 



touch uf the linger tips is all that 



tion of the holder for the release or attachment of the umbrella 



ribs. [Reliance Rubber & Hardwood Co., London, England.] 



