600 



THE INDIA RUBBER WORLD 



[August 1, 1916. 



Toy BALLOON INFLATING MACHINE. 



The popularity of toy balloons as an advertising medium con- 

 tinues to grow remarkably, and manufacturers experience diffi- 

 culty, not in securing orders, but in tilling them. As these 

 balloons arc invariably supplied in a deflated state, the question 

 of inflating several thousand of these little toys is rather per- 

 plexing unless one is familiar with the usual procedure The 

 accompanying illustration is tlic answer. It is, in fact, a small 



electric motor attached directly to a small rotary blower, and 

 can be placed on a table or desk and operated from an alternat- 

 ing or direct current service. 



The neck of the balloon is slipped over the nipple that is 

 seen in the picture, extending from the opposite side of the 

 blower, and the motor started. When the balloon is inflated, 

 the air is shut off by means of the hand valve and thread is 

 tied around the neck to prevent the air from escaping. Thus it 

 will be seen that balloons can be easily and cheaply inflated. 

 The motor consumes current at the rate of an ordinary 16- 

 candle-power lamp, revolving the blower at 1,500 revolutions per 

 minute. [Dependable Manufacturing Co., Chicago, Illinois.] 



MACHINERY PATENTS. 



PERRADXT'S SOLE LAYING MACHINE. 



A CCORDIXG to this method, the layers of sole stock are 

 ^* superimposed and simultaneously subjected to a rolling 

 pressure and a vibratory movement imparted by vertically recip- 

 rocating rollers. At the 

 same time, the shoe is 

 moved at right angles to 

 the plane of reciproca- 

 tion of the rollers. 



In the accompanying 

 illustration, A is the bed 

 of the machine and B 

 the last and shoe to 

 which the rubber sole is 

 to be applied. The last 

 is mounted on a carriage 

 C that travels back and 

 forth under the vertical 

 rollers, and is driven by 

 a reversible lead screw. 

 The first roller Z? is a 

 straight-faced pressure roller operating on the central part of 

 the sole. Following this, a pair of rollers E, arranged at an 

 angle of 15 degrees, contact with the edges of the sole. These 

 rolls are journaled in yokes, the upper ends of which are carried 

 "by eccentric shafts F and G, that impart a vibratory motion to 

 the rollers. The two yoke heads are fastened to slides that have 

 a limited vertical movement within a frame that is raised by a 

 cable which passes over the top sheave H, then down and around 

 sheaves / and I journaled in the bed of the machine. Here it is 

 connected to a hell crank lever that is tripped by the forward 



movement of the carriage, and lifts the reciprocating rollers from 

 the sole on the return movement of the carriage. 



The eccentric shafts /•" and 6' are driven by belts fC and L 

 from the countershaft M, that is in turn driven from the motor 

 shaft TV' which also drives the carriage operating screw O by 

 means of gearing shown at /'. The return movement of the 

 carriage is eflfected by a clutch operated by a pivoted fork and 

 rod that codperates with a lug attached to the carriage. A hand 

 lever holds the clutch in neutral position and stops the carriage 

 to permit the removal of the last and the replacement of a new 

 one to be operated on. [J. E. Perrault, Belmont, assignor to 

 Hood Rubber Co., Watertown — both in Massachusetts. United 

 States patent No. 1,184,990.] 



VULCANIZING BRUSH BRISTLES SET IN RUBBER. 



This machine is designed to heat and vulcanize the rubber 

 cement used to secure together the butt-ends of brush bristles. 

 It accommodates a number of brushes of different sizes, and 

 supplies pressure and heat at the 

 particular point desired. The ma- 

 chine is constructed with six 

 platens, arranged in pairs, one 

 above the other, the upper platen 

 j^ of each pair being raised or low- 

 ered by separate vertical screws 

 operated by hand wheels. The 

 platens are all chambered for 

 steam and the connections pro- 

 vided with swing joints to allow 

 for vertical movement. 

 In the drawing, which illustrates a vertical section through a 

 pair of platens, A is the upper and B the lower platen, both be- 

 ing heated by steam and covered with asbestos insulation. Two 

 rows of brushes C and D, with the ferrule ends rubber cemented, 

 are placed on the lower platen, when pressure and heat are ap- 

 plied until vulcanization is complete. [M. P. Tottle, Glyndow, 

 assignor to William A. Tottle & Co., Inc., Baltimore— both iri 

 Maryland. United States patent No. 1,189,212.] 



COLLAPSIBLE CORE FOR HOT WATER. BOTTLES. 



A core that can easily be removed through the neck of 

 molded hot water bottles or similar goods, without injury to 

 the article, is shown in the illustration. It is composed of ten 

 sections, A being the top 

 and B the bottom sec- 

 tion, all held in place by 

 a rod C. The neck of 

 the bottle is provided 

 with a round plug D, 

 through which the rod 

 C passes, and fits within 

 the threaded stopple ring 

 E that is molded in the 

 bottle neck. A recess at 

 the lower part of the 

 mold forms a nipple F 

 for attaching a syringe 

 tube, and G is a recess 

 for centering the end of 

 rod C in the mold. The 

 operation is as follows : 

 The sections of the core 

 are assembled, being 

 held in position by the rod, and the two mold halves are lined with 

 calendered stock, the core inserted and the mold parts clamped 

 together in the usual manner. After being cured, and when the 

 mold is sufficiently cooled, the bottle is removed from the 

 mold, and the rod and plug are withdrawn. This frees the top 



