264 



THE INDIA RUBI^ER WORLD 



[May I, 1906. 



posed of a small bar of rubber through which one or more 

 holes have been left for the passage of air. The air is forced 

 through these ducts by means of a soft rubber bulb aflLxed 

 to one end of the bar and compressed by the hand during 

 the operation of erasing. United States letters patent No. 

 797,908 have been issued for this invention to Charles ]''d- 

 ward McGill. [The Pneumatic Eraser Co., Owensboro, 

 Kentucky.] 



miller's nkw rubber water bag 

 This is a water bottle or bag involving a new feature. 

 The bag proper is of rubber and is shaped like pretty much 



all other vessels of this kind. The 

 difierence is in the top, or stopper, 

 which in this case embodies a 

 new idea. The bead is covered 

 with and held in position by a 

 strip of friction fabric, which in 

 turn has a wrapping of wire, the 

 whole being covered with a finishing strip to add to its at- 

 tractiveness and give it additional strength and durability. 

 Thomas W. Miller, of Akron, is the patentee. [Faultless 

 Rubber Co., Akron, Ohio] 



AUTOMATIC COUPLER FOR TRAIN HOSH. 



\ UTOMATIC car couplers are by no means a new thing. 

 ■^-^ Their adoption did much to reduce the number of men 

 killed or maimed annually while engaged in the ever haz- 

 ardous work of making up trains. But in the use of air brake 

 hose there remained a constant menace to the life and limb 

 of the men whose duty it was to join the hose ends between 

 the cars after the coupling had been accomplished. Now the 

 danger from this source has been wiped out, through the in- 

 troduction on several leading railroads of an automatic coup- 

 ler for air hose and steam hose. A comparison of figures 

 shows that the cost of maintenance under the new system is 

 materially less than that of the ordinary connections with 

 hand couplings. 



The coupler head is of malleable iron, having V and wedge 

 shaped guides projecting toward the front and an outwardly 

 bent spring firmly riveted to the back ; the spring project- 

 ing toward the front on the opposite side of the head from 

 the V shaped guides. The face of the coupler is parallel to 

 the longitudinal axis of the car and has the various openings 



in the face machined to receive gaskets. The face of the 

 head is so arranged and the gaskets so placed that the latter 

 do not toiich those of the opposing member while coupling, 

 but are held apart until the moment of registering, when 

 they are firmly brought together. This protection is alTord- 

 ed by tongues and grooves in the coupler faces, holding the 

 gaskets apart until they are in position to register, when 

 the tongues of each head drop into the corresponding grooves 

 in the oppo.site face, thus bringing the gaskets firmly to- 

 gether and shielding them from wear. An excellent idea of 

 this device may be obtained from the sul)joined cut. [West- 

 inghouse Automatic Air and Steam Coupler Co., St. Louis.] 



NEW TRADE PUBLICATIONS. 



^ I ^IIlv Cleveland Rlbher Works of the Mechanical 

 -*- Rubber Co., (Cleveland, Ohio) issue a comprehensive 

 and well got up Packing Catalogue, devoted to their exten- 

 sive line of "Marco" packings. They have adopted the 

 word " Marco " as a trade mark which is now applied to all 

 their packings. The catalogue goes into detail regarding 

 compounds, methods of manufacture, and the like, beside 

 describing and illustrating fully the distinctive features of 

 each of the various packings. [5"X7K"- 60 pages.] 



John Royle & Sons (Paterson, New Jersey), widely 

 known in the trade as ^manufacturers of tubing machines in 

 great variety, issue a catalogue of Fixtures for such ma- 

 chines, which field alone has become extensive, owing to the 

 extended use of these machines in many different sizes, ren- 

 dering desirable dies and cores available for use in different 

 machines. The book is illustrated and includes prices. 

 [_6}i''X9'4". 82 pages.] 



John A. Roebling's Sons Co. (Trenton, N. J.) issue a 

 catalogue entitled "Some Roebling Products," which con- 

 cludes : " Among the most important Roebling products are 

 insulated wires and cables. A large part of our works is 

 used in the manufacture of these materials, which include 

 weatherproof, magnet, rubber-covered, and many other in- 

 sulated wires ; also submarine, power, and telephone cables. ' ' 

 [5" X 3'A"- 36 pages.] 



ALSO RECEIVED. 



The Mitzel Rubber Co., Carrollton, Ohio. -Net Price List. 11 

 pages. 



Firestone Tiie and Rubber Co., Akron, Ohio^Firestone Pneu- 

 matic Tires. 15 pages. 



Woven Steel Hose and Rubber Co , Trenton, New Jersey^;Rub- 

 ber Hose, Packiug, Perforated Mats, Corrugated Matting, etc. 28 

 pages. 



The Fisk Rubber Co., Cliicopee Falls, Massachusetts — Fisk 

 Automobile Tires 20 pages. 



AUTOMATIC COUPLER FOR TRAIN HOSE 



Sterilizing Rubber Gloves. — A hospital superintendent 

 of experience submits the following regarding the sterilizing 

 of rubber gloves : Wash new gloves with wool or ivory 

 soap in tepid water ; wash the inside as well. Dry by gentle 

 friction with a soft towel ; then powder with commercial tal- 

 cum, narrow pieces of gauze being dropped into each finger 

 to avoid contact. Each glove is placed in a towel, separate. 

 Sterilize under pressure the same as for gauze, one-half hour, 

 and dry in the sterilizer. Sterilize talcum powder at the 

 same time, to be dusted on when applj'ing, if the surgeon or 

 nurses desire it. — National Hospital Record. 



