268 



THE INDIA RUBBER \VORLD 



[June 



1 90 1. 



avoid refinishing after securing the heel. The plate referred 

 to is preferably stamped out of thin sheet steel, and has a 

 horseshoe like contour, the circumferential dimensions of the 

 plate being slightly less than that of the heel. The plate is 

 perforated for nails. The plate may also be formed with a series 

 of pins or studs, adapted to extend from the plate to the bot- 

 tom or wearing surface of the rubber heel, in a semicircle at 

 the back of the heel, to protect the rear part from excessive 

 wear. Mr. Comingor is desirous of making arrangements for 

 the manufacture of the new heel. 



lappe's standard hygienic heels. 



This is a view of a new rubber 

 heel for leather shoes, the prin- 

 cipal claims for which are (i) 

 that it will not carry dirt; (2) 

 that it is reinforced at wearing 

 points; and (3) that the method 

 of applying nails will prevent 

 injury to floors and carpets. 

 Special attention is called by 

 the manufacturers to the quality 

 of the material used in this heel, 

 it " being the same slock as is 

 used in the manufacture of car 

 riage tires." [H. A. Lappe & Co., 

 wholesale leather, Pittsburgh, Pennsylvania.] 



SELF PACKING RING FOR GAGE GLASSES. 



This patented packing ring — of which both a general and a 

 section view are shown in the illustration — is worked by the 

 boiler pressure, ft is so constructed as to conform readily to 



the position of 



TRADE ^ly/^ ^\ ^'"^ glass tube 



w i t h o u t 

 wrenching or 

 twisting the 

 ends of the 

 same, thereby 

 obviating all 

 danger of 

 breaking the 

 glass tubes 

 when connect- 

 ingor replacing 

 them. A wrench 

 is not required 

 in applying this 

 ring ; the nutis 

 simply screwed 



up with the thumb and finger until a good bearing has been 

 secured on the bottom or beveled side of the ring. Then the 

 valve can be opened and the ring will take care of itself. 

 [The La Favorite Rubber Manufacturing Co., Paterson, New 

 Jersey.] 



THE BAYONET CLIP FOR ATOMIZERS. 

 Physicians, who are perhaps as intelligent users of atom- 

 izers as anybody, have long complained of the time that it takes 

 to remove any form of top from a bottle and attach it to 

 another, a common method being of course that of screwing 

 and unscrewing. The Davidson Rubber Company have obvi- 

 ated this difficulty in an exceedingly simple and effective man- 

 ner, using instead of the hard form, a Bayonet Clip, which with 

 the correct turn is made perfectly fast, so that a top or pipe can 

 be released in a fraction of a minute. 



A new 



NEW FEATURE IN SLOTTED SCREW TtPS. 

 It has not been an unusual experience, with users of slotted 

 screw tips, to have the rubber heads pull off the screw, 

 feature in the construction of such tips has been 

 introduced, being a patented perforated coun- 

 tersunk disk, of which illustrations are presented 

 herewith, and the use of which makes it impos- 

 sible for the rubber head to pull oil. The con- 

 struction of the disk being countersunk allows 

 the head of the screw to imbed itself in the disk, 

 so in case the tip is worn down it will present a 

 perfectly smooth surface and do no damage. On 

 account of the disk and the screw being molded 

 clear to the bottom of the tip, it gives about 

 1/16 inch more wear than any other slotted screw tip, all of 

 which have an ordinary oval headed iron screw on which the 

 rubber will not unite. An additional point of interest to the 

 trade is that these patented tips are sold at the same price as 

 the tips hitherto on the market. [The Elastic Tip Co., No. 

 370 Atlantic avenue, Boston.] 



MINOR MENTION. 

 Nothing perhaps shows the German ability to make excel- 

 lent hard rubber goods better than a flexible hard rubber tube 

 which is now being placed on the market by George Borgfeldt 

 & Co. (New York). This tubing is black, nicely finished and 

 exceedingly dense, and yet can be bent into almost any shape 

 without breaking. 



RUBBER INDUSTRY IN NEW lERSEY. 



THE twenty-third annual report of the bureau of statistics 

 of labor and industries of New Jersey — in which state 

 the Massachusetts system of such statistics has been adopted 

 — contains the following details regarding the India-rubber in- 

 dustry for the year 1899. The returns cover 33 establishments 

 which are believed to represent practically the whole industry 

 in New Jersey: 



Total capital employed .$6,700,548 



Total value of materials used $8,205,344 



Crude rubber $4,742,778 



Scrap rubber 684.352 



Other materials a. 778,214 



Total amount paid in wages S?l,73g.qi8 



Total selling value of products $12,441,996 



Boots and shoes $1,904,961 



Rubbertires 549 44° 



Reclaimed rubber 871,559 



Other rubber goods 0,116,036 



Number of private firms 2 



Number of partners 4 



Number of corporations 31 



Number of shareholders in corporations 356 



Number of female shareholders 75 



Average capital invested by partners $50,000 



Average invested by shareholders $18,260 



Average capital per factory .$203,047 



Average materials used per factory $248,644 



Average products per factory $377»o30 



Average wages paid per factory $52,725 



Smallest number of employes 3<(>^9 



Largest number of employes 4296 



Total average number of employes 4i034 



Average number of male employes 3,312 



Average number of female employes 722 



Average number of employes per factory 122 



Average earnings per year per employi' $43'.3i 



Average number of days in operation 280.27 



Average hours of work per day 9.97 



Proportion of business done to capacity 81.97 per cent. 



A comparison of returns on a similar basis, but from a 



smaller number of establishments, for 1898, shows an increase 



in capital, materials used, goods produced, and rate of wages. 



