BAIRD &TATLOCK (LONDON) LTD. 



6270 Sturtevant Laboratory 



6270 

 Roll Jaw " Crusher, 6 by 2 in. 



6270 (Open for cleaning 



These machines are superior in design to the majority of. machines on the market, and are 

 well constructed and easily accessible ; weight being 700 Ibs. , the] crusher is specially adapted 

 for hard work, and will withstand severe crushing stresses. The jaws advance and recede very 

 slightly at the discharge, and in addition give the material a rolling movement which assists the 

 crushing action and also prevents the possibility of clogging unless the material is really sticky. 

 They may be set at J in., and the product must be crushed to all below f, in. before it can 

 pass through. They are also easily adjustable for coarser work. 



6271 



6271 (Open for cleaning) 



6271 Sturtevant Laboratory Roll, designed specially for sampling purposes, size 8 by 5 in. 



This small roll is intended to take ore from the Laboratory Roll Jaw Crusher and reduce to fine sand rapidly and 

 economically. It requires very little power to drive and will run smoothly on any bench or floor. It is designed 

 to meet the special requirements of assay work and carries rolls 8 in. by 5 in., weight complete, 650 Ibs., runs at 

 150 revolutions, pulleys 18 in. by 4 in., total space required 28 in. wide by 31 in. long by 22 in. high. This small 

 machine can be regulated for coarse or fine work, has adjustable spring pressures which allow a great variety of output. 



The cover opens as shown in illustration, and carries the side plates and hopper. Every part is exposed and 

 immediately accessible for cleaning or replacing. It can do fine or coarse work, and is capable of taking and 

 crushing hard rock from the Laboratory Roll Jaw Crusher down to 60 mesh. It is practically dust-proof, is fitted 

 with special axle-box bearings and is in all respects as carefully constructed as the larger machines on the market. 



36 5 



14 CROSS STREET HATTCTN GARDEN, E 





1148 



