There is no other carrier like it; no other carrier that has the same strength, symmetry, lifting power, 

 or ease of propellment along the track. No other carrier has the exclusive special features of the Eman- 

 cipator, without which any litter carrier falls short of perfection. 



As has often been said, "The best evidence of worth is the name of 

 the maker." The Louden Machinery Company is too well established, 

 too well known, and too proud of its reputation for quality and square 

 dealing, to offer any product that is not satis- 

 factory and SAFE. 



Hoisting Device 



We discarded all clutches, brakes and ratchets 

 in connection with litter and feed carriers years 

 ago. We own the first patents issued on litter 

 carriers, but thorough tests so clearly proved the 

 superiority of our present construction that we 

 threw away all the old style models and are offer- 

 ing only those which we know to be absolutely 

 trustworthy. 



It makes the lowering and raising of the box 

 so easy that with the same effort practically 

 double as much can be raised as with any other hoisting 

 device. A boy can raise a bigger load with this device than 

 can a man with any other litter or feed carrier. A lifting 

 chain of sufficient length to raise and lower the box seven 

 feet is furnished regularly, but at small additional cost the 



carrier can be equipped to hoist twenty feet. 



Fig. 881. The Emancipator 

 The wheel "A" (see illustration) is the wheel over which Hoisting Gear, 



the hand chain passes. This chain is endless, like the chain 



on a bicycle, and the links fit snugly over the sprockets in the wheel. The eixle of wheel "A" revolves 

 with the wheel, and a thread — the worm — turns just as fast as you turn wheel "A" with the hand chain. 

 Now examine wheel "B". It has lugs, or pins, all around, into which the worm threads fit, and when 

 these threads begin to turn as a result of pulling on the hand chain the advantage you gain over the load 



is enormous. It permits a one pound pull on the chain to raise forty in the box. 



This is the greatest leverage giving principle ever discovered. 



Another exclusive Louden feature is the way the lifting chain operates. This, 

 like other Louden features, is the result of 48 years' study, and it eliminates all 

 possibility of the carrier box dropping too quickly. It also does away with trouble- 

 some ratchets and brakes that would make its use by careless help a constant danger. 



It will be seen in the illustration how the lifting chain is attached to the carrier 

 box, how it runs over the pin wheel "B" and up to and around the drum. This 

 lifting chain CANNOT run unless there is a pull on the hand chain. The lifting 

 chain, the hand chain and the worm MUST work in unison. 



The chain guides (or floats) "D" on both the wheel and the drum, work perfectly 

 and always keep the chain even and fitting snugly. Everything is mechanically 

 correct and is tested thoroughly before leaving the factory. 



Still another exclusive Louden feature is the extra strong swivel joints "E" 

 which connect the track wheels to the frame, and which support the weight of the 

 load. Instead of using an ordinary bolt that bends and gets out of shape after a 

 little usage, we use a heavy swivel knee joint, the bearing surface of which is 

 2g inches in diameter. This swivel joint permits the carrier to round curves as 

 easily as it runs on a straight track. There is no sticking or binding or heavy 

 friction to overcome. 



The track wheels are set as far apart on the track as possible. This does away 



with the unsteadiness and "jerkiness. " The wheels are large — four inches in 



Fig. 885. diameter — are roller bearing and run smoothly on the track. The wheels turn on 



Page One hundred fifty-eight 



