April 1, 1914.] 



THE INDIA RUBBER WORLD 



377 



A STTCTION ATTACHMENT FOR PTNCH FEES8ES. 



An interesting device shown at the recent Safety and Sanita- 

 tion exhibition was a suction attachment for punch presses used 

 for picking up sheet metal to be fed to press, this method 

 naturally being safer than the former practice of hand feeding. 



riKVICK 1(1R riCKI.NT, L'p .ShEET M KT A I . 



The actual "picking" is eflfected through means of a rubber disc 

 deriving its suction from a vacuum pump to which it is attached. 

 fWestinghouse Electric & Manufacturing Co., East Pittsburgh, 

 Pennsylvania.] 



BUFFING WHEEL FOR RUBBER. 



In testing cotton rubber-lined fire hose, the backing, which is 

 used to cement the lining to the fabric, if not removed, affects 

 to a greater or less extent the values obtained for tensile strength 

 and recovery. The more usual method is to remove the backing 

 by means of an emery wheel, and the operation as commonly 

 performed requires considerable care and skill to prevent injury 

 to the rubber. 



The buffing wheel shown in the accompanying illustration has 

 been especially designed at the National Bureau of Standards 



Buffing Wheel. 



for the purpose of buffing rubber and is giving excellent results. 

 The wheel is operated by a Ji horsepower motor. The rubber 

 to be buffed is clamped, as shown, to a carriage which is moved 

 back and forth under the 5 inch x 1 inch emery wheel (No. 60) 

 running at about 3.000 revolutions per minute. The central por- 

 tion of the carriage just under the rubber is slightly raised, by 

 w-hich means it has been found that the operation is more easily 

 performed and with less danger of injury to the rubber. The 

 thumb screw marked "A" serves to lower the wheel by very 

 small amounts as the buffing proceeds. The shields marked "B" 

 are for the purpose of keeping the fine particles of rubber off of 

 the guide. The starting box, tho not necessary, is desirable 

 in bringing the wheel gradually up to full speed. 



A HACHINS FOR OUTTmO RUBBER GASKETS. 



If a man prefers, he can take a pair of compasses — or the 

 bottom of a tin can, for that matter — draw a circle on a sheet 



of rubber and cut a 

 gasket out with a pair 

 of shears; but he can do 

 it much more expedi- 

 tiously and accurately by 

 using the Springfield 

 circle cutter illustrated 

 here. This is a simple 

 machine, weighing only 

 about 12 pounds, and can 

 be used on any llat table. The double clamp holds the sheet of 

 rul)!)er, or whatever the material may be, lirmly in its place, and 

 a revolving arm cuts out the circle of the desired size. This 

 arm has a graduated scale, so that the radius of the circle may 

 be accurately gauged. This radius may be anything from 14 

 (if an inch to 14 inches. There is a tool carrier, arranged to hold 

 various different tools. The machine is quite inexpensive. [The 

 Shavvver Co., Springfield, Ohio] 



WRAPS TIRES IN HALF A mNUTE. 



The constant progress being made in tlic nil^ber indus- 

 try is indicated by the 

 continual introduction of 

 new machinery. One manu- 

 facturer has placed on the 

 market a new machine which 

 wTaps the paper tape protect- 

 ing cover on a tire in 30 sec- 

 onds. This machine is driven 

 by belt from an electric motor 

 mounted on the back of the 

 cast iron stand. The roll of 

 paper tape is carried around 

 the tire by an annular steel 

 ring while the tire is revolved 

 at right angles to the ring. 

 Both the tire and the ring are 

 actuated by friction rollers 

 which provide sufficient pres- 

 sure to give a positive drive 

 without slipping. The machine 

 is controlled by a foot lever, 

 which leaves the operator's 

 hands free to open the ring 

 and remove the tire the in- 

 stant the power is shut off. 

 \'cry little floor space is required for the stand and only a small- 

 powered motor is needed to operate the winding mechanism. 

 IChas. E. Miller, .'\nderson. Indiana] 



A NEW HILL-STAGE VULCANIZER. 



For the public garage operator 

 this new vulcanizer is particularly 

 adapted, since it has a capacity of five 

 casings, five inner tubes, one motor- 

 cycle tire and two bicycle tires at a 

 single heating. It will take tires up 

 to 5 inches in size, or the tubes of 

 any size may be accommodated. This 

 is a steam vulcanizer, being equip- 

 ped with a jacketed boiler of large 

 capacity and with either a gas or 

 gasoline burner. The outfit weighs, 

 complete, ready for shipment, 675 

 pounds. [The Hill-Stage Co., 

 Anderson, Indiana.] 



